ФТОРАЛКИЛФОСФАТЫ, СПОСОБ ИХ ПОЛУЧЕНИЯ И ЭЛЕКТРОЛИТЫ НА ИХ ОСНОВЕ

Изобретение относится к органической химии, конкретно, к новым фторалкилфосфатам, которые могут выступать в качестве электролитов для первичных источников тока, вторичных источников тока, конденсаторов, суперконденсаторов и/или гальванических элементов. Описываются фторалкилфосфаты общей формулы (I) Mn+[PFx(CyF2y+1-zHz)6-x]n- (I) в которой 1≤х≤6, 1≤у≤8, 0≤z≤2y+l, 1≤n≤5 и Мn+ обозначает одновалентный, двухвалентный или трехвалентный катион, в частности: NR1R2R3R4, PR1R2R3R4, P(NR1R2)kR3m R44-k-m(где k=1-4, m=0-3 и k+m≤4), C(NR1R2)(NR3R4)(NR5R6), С(арил)3, Rb или тропилий, где R1-R8 обозначают Н, алкил или арил(С1-С8), которые могут быть частично замещены на F, Cl или Br, и где Mn+=Li+, Na+, Cs+, K+ и Ag+ исключены. Кроме того, описываются способ получения фторалкилфосфатов и электролиты для первичных источников тока на основе фторалкилфосфатов. Технический результат - получены новые соединения, обладающие полезными свойствами. 4 н. и 7 з.п. ф-лы, 1 ил.

ПОЛУЧЕНИЕ ГЕКСАФТОРФОСФАТНОЙ СОЛИ И ПЕНТАФТОРИДА ФОСФОРА

Группа изобретений относится к неорганической химии. Для получения гексафторфосфатной соли осуществляют нейтрализацию гексафторфосфорной кислоты с помощью органического основания Льюиса. Органическая гексафторфосфатная соль взаимодействует со щелочным гидроксидом, выбранным из гидроксида щелочного металла (иного, чем LiOH) и гидроксида щелочноземельного металла, в неводной суспендирующей среде, с получением щелочной гексафторфосфатной соли в виде преципитата. Для извлечения щелочной гексафторфосфатной соли удаляют жидкую фазу, содержащую неводную суспендирующую среду, непрореагировавшее органическое основание Льюиса и воду. Для получения пентафторида фосфора проводят термическое разложение щелочной гексафторфосфатной соли. Обеспечивается повышение чистоты гексафторфосфатной соли и пентафторида фосфора. 2 н. и 14 з.п. ф-лы, 12 ил., 1 табл., 3 пр.

ИОННЫЕ ЖИДКОСТИ II

Изобретение относится к органической химии, конкретно к новым ионным жидкостям, предназначенным для применения в электрохимических элементах и в органическом синтезе. Описываются ионные жидкости с общей формулой , в которой K+ представляет собой один из катионов группы, состоящей из где R1-R5 могут быть одинаковыми или различными, а также могут быть связаны непосредственно друг с другом посредством одинарной или двойной связи, и каждый из них в отдельности или совместно принимает следующие значения: -Н, - галоген, - алкильный радикал (C1-C8), который может быть частично или полностью замещен следующими группами, предпочтительно F, Cl, N(CnF(2n+1-x)Hx)2, O(CnF(2n+1-x)Hx), SO2(CnF(2n+1-x)Hx) или CnF(2n+1-x)Hx, где 1 Подробнее

ЭЛЕМЕНТ АККУМУЛЯТОРНОЙ БАТАРЕИ

Изобретение относится к области электротехники, а именно, к литий-ионной аккумуляторной батарее, которой обладает повышенной стабильностью и надежностью за счет использования электролита на основе SO2, который демонстрирует хорошие характеристики при низких температурах. Повышение эксплуатационной надежности и срока службы батареи без разрушения электролита является техническим результатом изобретения, который достигается за счет того, что элемент (2, 20, 40) аккумуляторной батареи содержит активный металл, по меньшей мере один положительный электрод (4, 23, 44), по меньшей мере один отрицательный электрод (5, 22, 45), корпус (1, 28) и электролит, при этом указанный положительный электрод (4, 23, 44) содержит по меньшей мере одно соединение в форме слоя оксида в качестве активного материала, а указанный электролит выполнен на основе SO2 и содержит по меньшей мере одну проводящую соль, содержащую органическую добавку выбранную из группы: C1-С10 алкил, С2-С10 алкенил, С2-С10 алкинил, С3-С10 ...

БАТАРЕЯ НА ОСНОВЕ СЕРАОРГАНИЧЕСКИХ СОЕДИНЕНИЙ

Изобретение относится к раствору жидкого или гелеобразного электролита, содержащего по меньшей мере один безводный полярный беспротонный растворитель или полимер, по меньшей мере одну проводящую соль и по меньшей мере одно сераорганическое соединение, содержащее по меньшей мере один органический фрагмент и по меньшей мере одну -S-Sn-связь, где n равно целому числу от 2 до 5, причем указанные сераорганические соединения содержат одну или несколько серосодержащих функциональных групп, выбранных из группы, состоящей из дитиоацеталя, дитиокеталя, тритиоортокарбоксилата, ароматического полисульфида, полиэфир-полисульфида, полисульфид-кислой соли, органополисульфида, содержащего тритиокарбонатную функциональную группу, органо- или органометаллического полисульфида, содержащего дитиокарбонатную функциональную группу, органо- или металлоорганического полисульфида, содержащего монотиокарбонатную функциональную группу, и металлоорганического полисульфида, содержащего тритиокарбонатную функциональную ...

ЛИТИЕВАЯ ВТОРИЧНАЯ БАТАРЕЯ С ЭЛЕКТРОЛИТОМ, СОДЕРЖАЩИМ СОЕДИНЕНИЯ АММОНИЯ

Изобретение относится к литиевой вторичной батареи с электролитом, содержащим соединения аммония. Согласно изобретению литиевая батарея содержит катод, включающий литийсодержащий оксид переходного металла, анод, включающий графитизированный углерод, и неводный электролит с добавкой соединения аммония, способного давать ионы аммония. Техническим результатом изобретения является улучшение рабочих характеристик батареи при высоких температурах посредством добавления в электролит соединения аммония. 8 з.п. ф-лы, 1 табл.

СПОСОБ ПОЛУЧЕНИЯ КОМПОНЕНТА ЭЛЕКТРОЛИТА НА ОСНОВЕГЕКСАФТОРФОСФАТА ЛИТИЯ

Изобретение относится к технологии получения компонента электролита для литиевых источников тока. Способ получения компонента электролита на основе гексафторфосфата лития включает реакцию гексафторфосфата пиридиния с гидроокисью лития в растворителе с отгонкой легколетучих продуктов в вакууме. В качестве растворителя используют пропиленкарбонат. После завершения реакции без выделения индивидуального гексафторфосфата лития проводят азеотропную осушку полученного раствора. Затем проводят отгонку легколетучих продуктов реакции с частью пропиленкарбоната с образованием гексафторфосфата лития в пропиленкарбонате с его концентрацией, соответствующей насыщенному раствору при комнатной температуре. Результат изобретения: получение компонента электролита в виде раствора соли LiPF6 в подходящем растворителе. 4 з.п. ф-лы.

РАСТВОР НЕВОДНОГО ЭЛЕКТРОЛИТА, ВТОРИЧНАЯ БАТАРЕЯ С НЕВОДНЫМ ЭЛЕКТРОЛИТОМ И СПОСОБ ИЗГОТОВЛЕНИЯ ВТОРИЧНОЙ БАТАРЕИ С НЕВОДНЫМ ЭЛЕКТРОЛИТОМ

Изобретение относится к раствору неводного электролита, вторичной батарее с неводным электролитом и способу изготовления вторичной батареи с неводным электролитом. Раствор неводного электролита включает в качестве неводного растворителя циклический карбонат и сложный эфир фторированной карбоновой кислоты, содержащий два атома фтора у альфа-атома углерода, производного от карбоновой кислоты. Объемное соотношение сложного эфира фторированной карбоновой кислоты и циклического карбоната составляет от 50:50 до 95:5. Сложный эфир фторированной карбоновой кислоты включает CHFCOOCH. Раствор неводного электролита включает содержащуюся в неводном растворителе добавку, представляющую собой сочетание соединений C и D:Изобретение позволяет обеспечить высокую проводимость раствора неводного электролита. 3 н. и 4 з.п. ф-лы, 1 ил.

ПОЛУЧЕНИЕ ГЕКСАФТОРФОСФАТНОЙ СОЛИ И ПЕНТАФТОРИДА ФОСФОРА

СОЛЬ АРИЛДИАЗОНИЯ И ЕЕ ПРИМЕНЕНИЕ В ЭЛЕКТРОЛИТИЧЕСКОМ РАСТВОРЕ ЭЛЕКТРОХИМИЧЕСКОГО ГЕНЕРАТОРА

... 1. Соль диазония, не содержащая гидроксильных функциональных групп следующей общей формулы (1):в которой:n является целым числом в интервале от 1 до 10,Xозначает противоион катиона диазония, выбранный из галогенидов, BF , NO , HSO , PF , CHCOO, N(SOCF) , CFSO , CHSO , CFCOO, (CHO)(H)PO , N(CN) ,R, Rи Rнезависимо выбраны из группы, состоящей из -CH-, циклической или ациклической, линейной или разветвленной алкильной цепи, иA и A' независимо означают моно- или полициклическую, ароматическую углеводородную группу, выбранную из группы, состоящей из фенильной, арильной групп, конденсированных полиароматических групп, которые могут быть замещены.2. Диазониевая соль по п. 1, отличающаяся тем, что n лежит в интервале от 1 до 4.3. Диазониевая соль по п. 1, отличающаяся тем, что:- Rнезависимо выбран из группы, состоящей из -CH-, циклических или ациклических, линейных или разветвленных алкильных цепей, содержащих от 1 до 6 атомов углерода,- Rнезависимо выбран из группы, состоящей из -CH-, циклических ...

БАТАРЕЯ НА ОСНОВЕ СЕРАОРГАНИЧЕСКИХ СОЕДИНЕНИЙ

СПОСОБ ИЗГОТОВЛЕНИЯ БИОСОВМЕСТИМОЙ КАТОДНОЙ СУСПЕНЗИИ ДЛЯ ИСПОЛЬЗОВАНИЯ В БИОСОВМЕСТИМЫХ БАТАРЕЯХ ДЛЯ КОНТАКТНОЙ ЛИНЗЫ

ДОБАВКА ДЛЯ ЛИТИЙ-ИОННЫХ ПЕРЕЗАРЯЖАЕМЫХ БАТАРЕЙ

... 1. Литий-ионная перезаряжаемая батарея, содержащая:- анод, содержащий частицы, содержащие электроактивный материал, выбранные из:а. частиц, имеющих на поверхности пространственно разделенные структурные элементы, причем наименьшее измерение структурных элементов на поверхности частиц составляет по меньшей мере 10 нм и меньше или равно 10 мкм, а аспектное соотношение (определенное как отношение наибольшего измерения структурного элемента к наименьшему измерению) составляет по меньшей мере 5;b. частиц, которые содержат распределенные в них поры или полости, причем каждая пора или полость ограничена одной или более стенками, имеющими среднюю толщину ≥10 нм,с. частиц, содержащих фрагменты частиц, имеющих распределенные в них поры или полости, причем каждая пора или полость ограничена одной или более стенками, имеющими среднюю толщину ≥10 нм;d. частиц, имеющих минимальное измерение по меньшей мере 10 нм и аспектное соотношение (отношение наибольшего измерения к наименьшему измерению) по меньшей ...

ЭЛЕКТРОАКТИВНЫЙ МАТЕРИАЛ

... 1. Композиция, содержащая множество удлиненных элементов и множество частиц, причем как удлиненные элементы так и частицы содержат металл или полуметалл, выбранный из одного или более металла или полуметалла из группы, включающей кремний, олово, германий и алюминий или их смесь, и характеризующаяся тем, чтоа. удлиненные элементы выбраны из одного или более удлиненного элемента из группы, включающей волокна, трубки, ленты и хлопья иb. частицы выбраны из одной или более частицы из группы, включающей столбчатые частицы, пористые частицы и фрагменты пористых частиц.2. Композиция по п.1, отличающаяся тем, чтоа. удлиненные элементы выбраны из одного или более удлиненного элемент из группы, включающей волокна с диаметром от 100 до 500 нм, трубки, ленты и хлопья; иb. частицы представляют собой нативные кремниевые частицы.3. Композиция по п.1, отличающаяся тем, чтоа. удлиненный элемент представляет собой столбчатую частицу; иb. частицы выбраны из одной или более частицы из группы, включающей нативные ...

СОЛЬ ЧЕТВЕРТИЧНОГО АММОНИЯ, ЭЛЕКТРОЛИТ И ЭЛЕКТРОХИМИЧЕСКОЕ УСТРОЙСТВО

... 1. Соль четвертичного аммония формулы (1) где R1˜R2 представляют метил или этил, и X- представляет BF4- или N(CF3SO2)2-. 2. Соль четвертичного аммония по п.1, где R1представляетметил, R2 представляет метил и X- представляет BF4-. 3. Соль четвертичного аммония по п.1, где R1представляетметил, R2 представляет метил, и X- представляет N(CF3SO2)2-. 4. Соль четвертичного аммония по п.1, где R1представляет метил, R2 представляет этил и X- представляет BF4-. 5. Соль четвертичного аммония по п.1, где R1представляет метил, R2 представляет этил и X- представляет N(CF3 SO2)2-. 6. Соль четвертичного аммония по п.1, где R1представляетэтил, R2 представляет метил и X- представляет BF4-. 7. Соль четвертичного аммония по п.1, где R1представляетэтил, R2 представляет этил и X- представляет BF4-. 8. Состав, отличающийся тем, что состав содержит соль четвертичного аммония по п.1 и органический растворитель. 9. Состав, отличающийся тем, что состав содержит по меньшей мере одну соль четвертичного аммония по любому ...

Galvanische Zelle mit einer Lithiummetall oder eine lithiummetallhaltigen Legierung als Anodenmaterial

Galvanische Zelle mit einer Lithiummetall- oder einer lithiummetall-haltigen Legierung als Anodenmaterial, die ein Elektrolyt enthaltend Lithium bis(oxalato)borat sowie mindestens ein weiteres Lithiumkomplexsalz der Formeln I und/oder II in einem aprotischen Lösemittel oder Lösemittelgemisch $F1 $F2, wobei der Anteil der Verbindung (I) und/oder (II) im Leitsalz 0,01 bis 20 mol-% beträgt und X, Y und Z in den Formeln (I, II) eine mit zwei Sauerstoffatomen zum Bor- oder Phosphoratom verbundene Brücke ist, die ausgewählt ist aus $F3 Yund Yund zusammen = O bedeuten, m = 1, n = 0 und Yund Yunabhängig voneinander H oder ein Alkylrest mit 1 bis 5 C-Atomen sind, oder Y, Y, Y, Yjeweils unabhängig voneinander OR (mit R = Alkylrest mit 1 bis 5 C-Atomen), H oder ein Alkylrest R, Rmit 1 bis 5 C-Atomen sind, und wobei m, n = 0 oder 1 sind.

SEKUNDAERBATTERIE.

Leitsalz für Lithium-basierte Energiespeicher

Die Erfindung betrifft Lithium-2-trifluormethoxy-1,2,2,2-tetrafluor-ethansulfonat, die Verwendung von Lithium-2-trifluormethoxy-1,2,2,2-tetrafluor-ethansulfonat als Leitsalz in Lithium-basierten Energiespeichern sowie ionische Flüssigkeiten umfassend 2-Trifluormethoxy-1,2,2,2-tetrafluor-ethansulfonat als Anion.

Elektrolyt für eine Magnesium-Batteriezelle und wiederaufladbare Magnesium-Batteriezelle mit dem Elektrolyt

Die Erfindung betrifft einen Elektrolyt für eine Magnesium-Batteriezelle, enthaltend Magnesium-bis-Hexamethyldisilazid [(HMDS)2Mg] und Aluminiumchlorid (AlCl3) sowie wenigstens einen Ethylenglycoldimethylether, wobei der Elektrolyt weiter a) 0,05 bis 0,15 Gew.-%, bevorzugt 0,1 Gew.-%, von wenigstens einem nichtionischen Tensid, b) 0,01 bis 0,02 Gew.-%, bevorzugt 0,0125 Gew.-% von wenigstens einem Benzodiazepin-Derivat, und c) 0,01 bis 0,02 Gew.-%, bevorzugt 0,015 Gew.-% von wenigstens einem Barbiturat enthält. Die vorliegende Erfindung betrifft auch eine wiederaufladbar Magnesium-Batteriezelle mit dem Elektrolyt, ein Verfahren zum Herstellen einer wiederaufladbaren Magnesium-Batteriezelle sowie eine wiederaufladbare Magnesium-Batterie, die eine oder mehrere der Magnesium-Batteriezellen aufweist.

Positive Elektrode für Lithiumionen-Sekundärbatterie und Herstellungsverfahren dafür und Lithiumionen-Sekundärbatterie

Eine Aktivmaterialschicht einer positiven Elektrode wird gebildet aus Aktivmaterialteilchen für eine positive Elektrode einschließlich einer Li-Verbindung oder -Feststofflösung, ausgewählt aus der Gruppe bestehend aus LixNiaCobMncO2, LixCobMncO2, LixNiaMncO2, LixNiaCobO2 und Li2MnO3 (angemerkt wird, dass 0,5 x 1,5, 0,1 a < 1, 0,1 b 1 und 0,1 c < 1 ist); ein Bindungsteilbereich, der nicht nur die Teilchen des Aktivmaterials für eine positive Elektrode miteinander verbindet, sondern ebenfalls die Teilchen des Aktivmaterials für eine positive Elektrode zusammen mit dem Stromabnehmer verbindet; und eine organische/anorganische Überzugsschicht, die zumindest Teile der Oberfläche zumindest der Teilchen des Aktivmaterials für eine positive Elektrode bedeckt. Da die organische/anorganische Überzugsschicht eine hohe Verbindungsfestigkeit zu der Li-Verbindung aufweist, sind die Aktivmaterialteilchen für eine positive Elektrode und eine elektrolytische Lösung daran gehindert, zum Zeitpunkt eines Hochspannungsantriebsmodus ...

Electrolyte for use in lithium batteries, comprising lithium hexafluorophosphate or lithium bis(oxalato)borate in a solvent comprising ethylene carbonate and a cosolvent, includes 2-methylfuran

Electrolyte for use in lithium batteries, comprising lithium hexafluorophosphate or lithium bis(oxalato)borate dissolved in a solvent comprising ethylene carbonate and propylene carbonate, dimethyl carbonate, diethyl carbonate, ethyl methyl carbonate, butylene carbonate, ethyl acetate, methyl acetate, ethyl propionate and/or methyl propionate, includes up to 3 wt.% 2-methylfuran dissolved in the electrolyte. An independent claim is also included for an electrochemical cell comprising a cathode, an anode, a separator and an electrolyte as above, where the electrochemically active component of the anode comprises graphite and optionally carbon black.

Ex-situ-Herstellung einer Lithiumanodenschutzschicht

Die vorliegende Erfindung betrifft ein Verfahren zur Herstellung einer Anode für eine Lithiumzelle und/oder einer Lithiumzelle sowie derartige Anoden und Lithiumzellen. Um die Lebensdauer der Lithiumzelle zu verlängern und gezielt eine erste, Elektrolytzersetzungsprodukte umfassende, Schutzschicht (2) auf einer, metallisches Lithium umfassenden Anode (1) auszubilden, wird ex situ, also vor dem Zusammenfügen der herzustellenden Lithiumzelle, ein erster Elektrolyte auf die Anode (1) aufgebracht. In einem nachfolgenden Verfahrensschritt kann zur Stabilisierung der ersten Schutzschicht (2) eine zweite Schutzschicht (3) aufgebracht werden.

FESTER POLYELEKTROLYT

Carboxylmagnesiumelektrolyt für eine Magnesiumbatterie

Eine elektrochemische Vorrichtung mit einem Carboranylmagnesiumelektrolyt wird bereitgestellt. Insbesondere betrifft die Offenbarung eine elektrochemische Vorrichtung mit einer Magnesiumanode, einer Kathode und einem Stromsammler, der aus Nicht-Edelmetall hergestellt ist, und einen Carboranylmagnesiumelektrolyt. Der Kathodenstromsammler aus Nicht-Edelmetall weist für gewöhnlich in Kontakt mit dem Elektrolyt eine hohe oxidative Stabilität 3,0 V gegenüber einer Magnesiumreferenz auf. Verfahren zum Herstellen der elektrochemischen Vorrichtungen werden zusätzlich bereitgestellt.

Elektrolytlösung und Schwefel-bastierte oder Selen-basierte Batterien, die die Elektrolytlösung enthalten

Ein Beispiel einer Elektrolytlösung umfasst ein Lösungsmittel, Lithiumsalz, einen fluorierten Ether und ein Additiv. Das Additiv ist aus der Gruppe, bestehend aus RSxR', worin x im Bereich von 3 bis 18 liegt, und R-(SnSem)-R, worin 2 < n < 8 und 2 < m < 8, ausgewählt. R und R' sind jeweils unabhängig aus einer geradkettigen Alkylgruppe mit 1 Kohlenstoff bis 6 Kohlenstoffen oder einer verzweigten Alkylgruppe mit 1 Kohlenstoff bis 6 Kohlenstoffen ausgewählt. Die Elektrolytlösung kann zur Verwendung in einer Schwefel-basierten Batterie oder einer Selen-basierten Batterie geeignet sein.

Deuterierte Elektrolyt-Lösungsmittel

Die Offenbarung betrifft im Allgemeinen wiederaufladbare Batterien, zum Beispiel Lithium-Ionen-Batterien, die Elektrolyte mit deuterierten Lösungsmitteln beinhalten. Die Verwendung von deuterierten Lösungsmitteln bei der Synthese von Lithium-Ionen-Elektrolyten in wiederaufladbaren Zellen oder Batterien erhöht die chemische Stabilität der Zelle oder Batterien durch Reduzieren der Rate von wasserstoffbezogenen Reaktionen während der Zersetzung oder Hemmen von einigen dieser parasitären Reaktionen.

Kohlenstoffhaltiges Material für Elektrode und nicht-wässerige Sekundärbatterie unter Verwendung dieses Materials

Lithium-sulphur battery with high specific energy

Magnesium salts

Lithium-sulphur battery with high specific energy

Improvements relating to electrolyte compositions for batteries using sulphur or sulphur compounds

Magnesium salts

Non-aqueous electrolyte compositions

Composition

Composition

ALKALI METAL BATTERIES HAVING ELECTROLYTES INCLUDING ALKALI METAL SALTS OF COMPLEX ANIONS CONTAINING HETEROATOM SUBSTITUENTS IN ORGANIC SOLVENT

Purified lithium bis(fluorosulfonyl)imide (lifsi) products, methods of purifying crude lifsi, and uses of purified lifsi products

LEITSALZE FUR GALVANIC CELLS, THEIR PRODUCTION AND USE

OXYHALID CONTAINING ELECTRO-CHEMICAL HIGH TEMPERATURE CELLS

PRIMARY BATTERY WITH NICHTWÄSSRIGEM ELECTROLYTES

PROCEDURE FOR THE PRODUCTION OF PERFLUORALKANSULFONSÄUREESTERN

PROCEDURE FOR THE FLUORIDATION OF A CONNECTION WITH HALOGENSULFONYLODER DIHALOGENPHOSPHONYLGRUPPE

ELECTROLYTES FOR LITHIUM SULFUR CELLS

QUATERNÄRES AMMONIUM SALT, ELECTROLYTE AND ELECTRO-CHEMICAL DEVICE

NON--AQUEOUS ELECTROLYTE

FLUORINE ALKYL PHOSPHATE SALTS AND PROCEDURES FOR THE PRODUCTION OF THESE SUBSTANCES

PROCEDURE FOR THE PRODUCTION OF PERFLUORALKANSULFONSÄUREESTERN AND THEIR SALTS

NIEDERTEMPERATUR-LI/FES2-BATTERIE

AGAIN RECHARGEABLE ONE ELECTRO-CHEMICAL GENERATOR WITH LITHIUM ANODE.

RECHARGEABLE ELECTRO-CHEMICAL CELL

TRICHLOROETHYLENE (OXALATO) PHOSPHATES, PROCEDURES FOR THEIR PRODUCTION AND THEIR USE

ELECTROLYTES FOR LITHIUM ION BATTERIES

IONOMERE AND POLYMERS FOR ELECTRO-CHEMICAL APPLICATIONS

Dual cation rechargeable electrochemical battery cell

Lithium polymer energy storage devices and method for the production thereof

NON-AQUEOUS ELECTROLYTIC SECONDARY BATTERY

Salts of alkali metals of n, n2-disubstituted amides of alkane iminosulfinic acid and nonaqueous electrolytes on their basis

Lithium-sulfur battery and methods of preventing insoluble solid lithium-polysulfide deposition

An improved lithium-sulfur battery containing a surface-functionalized carbonaceous material. The presence of the surface-functionalized carbonaceous material generates weak chemical bonds between the functional groups of the surface-fun ctionalized carbonaceous material and the functional groups of the polysulfides, which prevents the polysulfide migration to the battery anode, thereby providing a battery with relatively high energy density and good partial discharge efficiency. 102 106 104 ...

Lithium accumulator and the method of producing thereof

Process for forming a battery containing an iron electrode

Provided is a process for activating a battery comprising an iron electrode. The process comprises providing a battery comprising a cathode and an iron anode. The battery further comprises an electrolyte comprising NaOH, LiOH and a sulfide. The battery is then cycled to equalize the state-of-charge of the cathode and iron anode.

A METHOD FOR MANUFACTURING A BIOCOMPATIBLE CATHODE SLURRY FOR USE IN BIOCOMPATIBLE BATTERIES FOR A CONTACT LENS

OF THE INVENTION Methods and apparatus to form biocompatible energization elements are described. In some examples, the methods and apparatus to form the biocompatible energization elements involve forming cavities comprising active cathode chemistry. The active elements of the cathode and anode are sealed with a biocompatible material. In some examples, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements. FG1l25 ...

Process for preparing lithium-borate complexes

IONIC CONDUCTING MATERIAL CONTAINING AN OLIGOETHER SULPHATE

... ²² Un matériau à conduction ionique qui comprend au moins un composé ionique en ²solution dans un polymère solvatant. Le composé ionique est un mélange d'un ²bis(trifluoro-méthanesulfonyl) imidure de lithium (LiTFSI) et d'au moins un ²oligoéther ²sulfate de lithium choisi parmi les oligoéthermonosulfates de lithium ²répondant à la ²formule R-[O-CH2-CH2)]n-O-SO3- Li+ (I) dans laquelle R est un groupe C m H2m+i ²avec ²1 .ltoreq. m < 4, et 2 < n < 17; et les oligoétherdisulfates de lithium ²répondant à la formule ²Li+O-SO2-O-CH2-[CH2-O-CH2]p-CH2-O-SO2-O-Li+ (II) dans laquelle 3 < p < 45. Le ²rapport global O t / Li t est inférieur ou égal à 40, O t représentant le ²nombre total ²d'atomes d'oxygène O fournis par le polymère solvatant et par l'oligoéther, et ²Li t ²représentant le nombre total d'atomes de lithium Li. La teneur en LiTFSI est ²telle que ²le rapport O t / LiTFSI est supérieur ou égal à 20.² ...

NONAQUEOUS ELECTROLYTE

NONAQUEOUS ELECTROLYTE FOR USE IN A LITHIUM ION CELL

To provide a nonaqueous electrolyte that makes it possible to lengthen the life of a lithium ion cell even when subjected to repeated charge/discharge cycles when used in a lithium ion cell. A nonaqueous electrolyte is prepared by combining a lithium salt shown by the above formula (1), at least one first additive among compounds shown by the above formula (2), and at least one second additive among compounds shown by the above formula (3).

NON-AQUEOUS ELECTROLYTIC SOLUTIONS AND ELECTROCHEMICAL CELLS COMPRISING THE SAME

Non-aqueous electrolyte solutions capable of protecting negative electrode materials such as lithium metal and carbonaceous materials in energy storage electrochemical cells (e.g., lithium metal batteries, lithium ion batteries and supercapacitors) include an electrolyte salt, a non-aqueous electrolyte solvent mixture, an unsaturated organic compound 4-methylene-1,3-dioxolan-2-one or 4,5- dimethylene-1,3-dioxolan-2-one, and other optional additives. The 1,3-dioxolan-2- ones help to form a good solid electrolyte interface on the negative electrode surface.

LITHIUM ACCUMULATOR AND METHOD OF PRODUCING THEREOF

A lithium accumulator including at least two three-dimensional electrodes separated by a separator and encased together with an electrolyte, comprising a non-aqueous solution of a lithium salt in an organic polar solvent, into an accumulator body wherein the two electrodes have a minimum thickness of 0.5 mm each, of which at least one electrode comprises a homogeneous, compressed mixture of an electron conductive component and an active material, capable to absorb and extract lithium in the presence of electrolyte, wherein the porosity of the pressed electrodes is 25 to 90 %, the active material has morphology of hollow spheres with a wall thickness of maximum 10 micrometers, or morphology of aggregates or agglomerates of maximum 30 micrometers in size, while the separator consists of a highly porous electrically insulating ceramic material with open pores and porosity from 30 to 95 %.

RECHARGEABLE BATTERY CELL

The invention relates to a rechargeable battery cell (2, 20, 40) which contains an active metal, at least one positive electrode (4, 23, 44) with a diverting element (26), at least one negative electrode (5, 22, 45) with a diverting element (27), a housing (1, 28), and an electrolyte, wherein the negative electrode contains lithium metal at least when the rechargeable battery cell is charged, and the electrolyte is based on SO2 and contains at least one first conductive salt with the formula (I), in which M is a metal selected from the group consisting of alkali metals, alkaline earth metals, metals of group 12 of the periodic table, and aluminum; x is a whole number from 1 to 3; the substituents R1, R2, R3, and R4 are selected independently of one another from the group consisting of C1-C10 alkyl, C2-C10 alkenyl, C2-C10 alkinyl, C3-C10 cycloalkyl, C6-C14 aryl, and C5-C14 heteroaryl; and Z is aluminum or boron.

RECHARGEABLE LITHIUM CELL

A rechargeable lithium cell is provided comprising a lithium anode, a lithium intercalating cathode, and an electrolyte comprising a solution of a lithium salt such as LiAsF6 or LiAlCl4 in 24.4 mass percent 4-butyrolactone (4-BL) in dimethoxyethane (DME). The cell exhibits improved low temperature (-40.degree.C ? t ? 0.degree.C) performance and rate capability.

ALKALI METAL ANODE/CHALCOGENIDE CATHODE REVERSIBLE BATTERIES HAVING ALKALI METAL POLYARYL METALLIC COMPOUND ELECTROLYTES

Reversible alkali metal anode/metal chalcogenide cathode cells, e.g. lithium batteries, are described having electrolyte compositions which consist essentially of (a) organic solvents selected from the group consisting of inertly substituted and unsubstituted ethers, esters, sulfones, organic sulfites, organic sulfates, organic nitrites and organic nitro compounds; and (b) electrolytically active alkali metal salts including polyaryl metallic alkali metal salts having the formula ZMRn wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, the Rs are certain aryl radicals, and n is a numerical value equal to one plus the valence of the metal M. Rechargeable, high energy density electrochemical cells containing an anode having an alkali metal as its active material, a cathode having as its active material a transition metal chalcogenide, e.g. TiS2, and an electrolyte composition of the above-described type, are ...

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

A nonaqueous electrolyte secondary battery is provided with a positive electrode including a positive-electrode active material, a negative electrode including a negative-electrode active material, and a nonaqueous electrolyte solution. The negative electrode further includes carbon fibers and carbon flakes. The synergistic effects of the improved retention of the electrolyte solution by the carbon fibers and the improved conductivity between the active material particles by the carbon flakes facilitate doping/undoping of lithium in a high-load current mode and increase the capacity of the battery in the high-load current mode.

BORATE SALTS FOR USE IN ELECTROCHEMICAL CELLS

The invention relates to borate salts and to their use in electro- chemical cells.

ELECTROLYTE PREPARATION PROCEDURE

LITHIUM ION ROCKING CHAIR RECHARGEABLE BATTERY

An electrochemical cell for a lithium ion rechargeable battery. The electrochemical cell comprises an anode including anode active material having a reduction potential of at least about 1.0 volt, a cathode including cathode active material having an oxidation potential of no more than about 3.7 volts, and an electrolyte separator separating the anode and the cathode.

QUATERNARY AMMONIUM SALT, ELECTROLYTE, AND ELECTROCHEMICAL DEVICE

Disclosed are a quaternary ammonium salt represented by the formula (1) below, an electrolyte, and a electrochemical device. (wherein R1 represents a straight chain or branched alkyl group having 1-4 carbon atoms; R2 represents a methyl group or an ethyl group; and X- represents a fluorine-containing anion.) ...

TRIS(OXALATO)PHOSPHATES, METHOD FOR THEIR PREPARATION AND THEIR USE

The invention relates to tris-(oxalato)phosphates of the general formula M[P(C2O4)3] wherein M = H, a metal or N(R1R2R3R4), where R1, R2, R3, R4 are independently H or an alkyl group comprising 1 to 8 C atoms. The invention also relates to a method for preparing such compounds as well as to their use.

METHOD FOR PRODUCING PERFLUOROALKANE SULFONIC ACID ESTERS AND THE SALTS THEREOF

The invention relates to a method for producing perfluoroalkane sulfonic acid esters and their subsequent conversion into salts, in addition to the use of the produced compounds in electrolytes and batteries, capacitors, supercapacitors and galvanic cells.

LITHIUM ION SECONDARY BATTERY AND METHOD OF PRODUCING THE SAME

There is provided a method of producing a lithium ion secondary battery. A positive electrode mixture layer is formed on a positive electrode current collector using an aqueous positive electrode mixture paste that includes a positive electrode active material including a lithium manganese composite oxide, and aqueous solvent, and additionally includes Li5FeO4 as an additive.

ELECTROLYTE FOR SUPERCAPACITOR AND HIGH-POWER BATTERY USE

The present application relates to an electrochemical cell comprising a nitrile-based solvent based electrolyte wherein, the electrolyte salt comprises NaClO4 and, at any stage of charge of the electrochemical cell, the electrolyte salt has a high Molar concentration in the discharged state.

METHODS OF IMPROVING PERFORMANCE OF IONIC LIQUID ELECTROLYTES IN LITHIUM-ION BATTERIES

Methods of improving the performance of an energy storage device are described. The method can include providing an energy storage device, which may be a lithium ion battery. The provided energy storage device may include an electrode and a room temperature ionic liquid electrolyte. The room temperature ionic liquid electrolyte may include a lithium salt, wherein the concentration of the lithium salt in the room temperature ionic liquid is greater than 1.2M, such as from 2.4M to 3.0M. The method may further include charging and discharging the provided energy storage device. Other methods described include providing an energy storage device comprising an electrode and a room temperature ionic liquid electrolyte, heating the energy storage device to a temperature above ambient temperature (e.g., 45°C) and charging and discharging the energy storage device. Still other methods include both the use of the high lithium salt concentration room temperature ionic liquid electrolyte and heating ...

ADDITIVE CONTAINING ELECTROLYTES FOR HIGH ENERGY RECHARGEABLE METAL ANODE BATTERIES

Electrolytes for use in commercially viable, rechargeable lithium metal batteries are described. The electrolytes contain one or more lithium salts, one or more organic solvents, and one or more additives. The electrolytes allow for reversible deposition and dissolution of lithium metal. Specific additives or additive combinations dramatically improved cycle life, decrease cell swelling, and/or lower cell impedance.

MODIFIED IONIC LIQUIDS CONTAINING TRIAZINE

The present disclosure is directed to a triazine-modified ionic liquid compound, the synthesis thereof and an electrochemical cell electrolyte containing the triazine-modified ionic liquid compound.

ELECTROLYTES FOR LITHIUM ION BATTERIES

MULTILAYER MATERIAL, METHOD FOR MAKING SAME AND USE AS ELECTRODE

Material) multi-couches comportant un support solide et au moins deux couches solides superposees qui contiennent des particules d'un materiau electrochimiquement actif, Ia premiere couche solide adhere au support solide et Ia deuxieme couche solide adhere a Ia premiere couche solide. Ce materiau multi-couches presente une Constance d'epaisseur de couche superieure ou egale a 95% et une profondeur de penetration de Ia deuxieme couche dans Ia premiere couche qui est inferieure a 10 % de I'epaisseur de Ia premiere couche, et il permet, comme element constitutif d'electrode, de preparer des generateurs presentant un faible risque de degradation en surcharge.

LITHIUM SALT

Disclosed is a lithium salt having excellent ion conductivity. Specifical ly disclosed is a lithium salt characterized by having a structure represent ed by the following general formula (1). (In the general formula (1), M repr esents B, Si, Ge, P, As or Sb; X represents the valence of M; R1 represents -CmH2m- (wherein m represents an integer of 1-4); R2 represents -CkH2k+1 (wh erein k represents an integer of 1-8); and n represents a number of 0-12.) ...

NONAQUEOUS ELECTROLYTE COMPOSITIONS COMPRISING SULTONE AND FLUORINATED SOLVENT

Described are electrolyte compositions comprising a fluorinated solvent, an organic carbonate, a sultone, and optionally a borate. The fluorinated solvent may be a fluorinated acyclic carboxylic acid ester, a fluorinated acyclic carbonate, a fluorinated acyclic ether, or mixtures thereof. The organic carbonate may be fluorinated or non-fluorinated. The electrolyte compositions are useful in electrochemical cells, such as lithium ion batteries.

AN ELECTROLYTE COMPOSITION AND A SODIUM ION BATTERY COMPRISING THE SAME

Disclosed is an electrolyte composition, suitable for sodium ion battery, comprising at least one sodium compound selected from the group consisting of sodium monofluorophosphate (Na2PO3F), sodium difluorophosphate (Na PO2F2) and mixture thereof, and a sodium ion battery comprising the same.

METHOD FOR PRODUCING DISULFONYLAMINE ALKALI METAL SALT

The present invention provides a method for producing a disulfonylamine alkali metal salt, including a step of subjecting a disulfonylamine onium salt represented by formula [I] (wherein each of R1 and R2 independently represents a fluorine atom or a fluorinated alkyl group having 1 to 6 carbon atoms, provided that at least one of R1 and R2 represents a fluorine atom, and each of R3, R4, R5 and R6 independently represents a hydrogen atom or the like) to a cation exchange reaction in an organic solvent, thereby producing a disulfonylamine alkali metal salt represented by formula [II] (wherein M+ represents an alkali metal cation, and R1 and R2 are as defined in formula [I]), and a step of filtering the organic solvent solution containing the disulfonylamine alkali metal salt through a filter having a particle retention size of 0.1 to 10 µm to obtain a filtrate. (see formula I, see formula II) ...

ELECTROLYTE FORMULATIONS FOR USE IN BIOCOMPATIBLE ENERGIZATION ELEMENTS

Electrolyte formulations for use in biocompatible energization elements are described. In some examples, the electrolyte formulations for use in biocompatible energization elements involve liquid state electrolytes formulated to optimize biocompatibility, electrical performance, and physical performance. The active elements of the electrolyte are sealed with a biocompatible material. In some examples, a field of use for the apparatus may include any biocompatible device or product that requires energization elements.

METHODS AND APPARATUS TO FORM BIOCOMPATIBLE ENERGIZATION PRIMARY ELEMENTS FOR BIOMEDICAL DEVICES

Methods and apparatus to form biocompatible energization elements are described. In some embodiments, the methods and apparatus to form the biocompatible energization elements involve forming cavities comprising active cathode chemistry. The active elements of the cathode and anode are sealed with a laminate stack of biocompatible material. In some embodiments, a field of use for the methods and apparatus may include any biocompatible device or product that requires energization elements.

GRANULES OR POWDER OF DISULFONYLAMIDE SALT AND METHOD FOR PRODUCING SAME

Granules or a powder which comprise or comprises a compound represented by formula [I] and have or has a mode diameter of 80 µm or less, a median diameter of 45 µm or less and/or a (mode diameter)/(median diameter) ratio of 1.7 or less. The granules or the powder can be used suitably for an electrolyte or the like. In formula [I], R1 and R2 independently represent an alkyl fluoride group having 1 to 6 carbon atoms or a fluorine atom; and Y+ represents an alkali metal cation or an ammonium cation.

ORGANIC LITHIUM BATTERY

La présente invention se rapporte au domaine des batteries lithium organique de hautes densités d'énergie et de puissance. En particulier, la présente invention concerne une batterie lithium organique comprenant une électrode positive à base de composés organiques rédox et un électrolyte comprenant une concentration élevée en sel de lithium, et son procédé de fabrication.

USE OF AN IONIC COMPOUND, DERIVED FROM MALONONITRILE AS A PHOTOINITIATOR, RADICAL INITIATORS OR CATALYSER IN POLYMERIZATION PROCESSES OR AS A BASIC DYE

La présente invention concerne l'utilisation de composés ioniques dérivés du malononitrile comme photoinitiateur source d'acide catalyseur dans un procédé de polymérisation ou de réticulation de monomères ou de prépolymères capables de réagir par voie cationique, ou comme catalyseur dans un procédé pour la modification de polymères. L'invention vise également l'utilisation de composés ioniques dérivés du malononitrile dans les colorants cationiques.

IONIC-LIQUID NANOSCALE IONIC MATERIAL (IL-NIM) COMPOSITIONS, METHODS AND APPLICATIONS

A method for preparing an ionic liquid nanoscale ionic material, the ionic liquid nanoscale ionic material and a battery that includes a battery electrolyte that comprises the ionic liquid nanoscale ionic material each provide superior performance. The superior performance may be manifested within the context of inhibited lithium dendrite formation.

Electrolytes in support of 5v li ion chemistry

This invention described the preparation of a series of compounds that can be used as co-solvents, solutes or additives in non-aqueous electrolytes and their test results in various electrochemical devices. The inclusion of these novel compounds in electrolyte systems can enable rechargeable chemistries at high voltages that are otherwise impossible with state-of-the-art electrolyte technologies. These compounds are so chosen because of their beneficial effect on the interphasial chemistries formed at high potentials, such as 5.0 V class cathodes for new Li ion chemistries. The potential application of these compounds goes beyond Li ion battery technology and covers any electrochemical device that employs non-aqueous electrolytes for the benefit of high energy density resultant from high operating voltages.

Secondary battery

An Example relates to a secondary battery including an electrode assembly and an electrolyte contained in a can. The electrode assembly includes an anode plate, a cathode plate and a separator. The electrolyte contains an organic solvent and a lithium salt at a concentration of about 0.5 M to about 1 M in the organic solvent.

Non-aqueous liquid electrolyte and non-aqueous liquid electrolyte secondary battery

A non-aqueous liquid electrolyte suitable for use in a non-aqueous liquid electrolyte secondary battery comprising a negative electrode and a positive electrode, capable of intercalating and deintercalating lithium ions, and the non-aqueous liquid electrolyte, the negative electrode containing a negative-electrode active material having at least one kind of atom selected from the group consisting of Si atom, Sn atom and Pb atom, wherein the non-aqueous liquid electrolyte comprises a carbonate having at least either an unsaturated bond or a halogen atom.

Lithium ion battery

A high-voltage lithium ion battery of the present invention has a cathode generating a potential of 4.5 V or higher on the metal lithium basis, an anode, and a nonaqueous electrolyte having a lithium salt dissolved in a nonaqueous solvent. A cathode coating layer is on at least a part of the surface of a cathode material mix and includes boron whose amount is equal to or greater than 0.0001% and equal to or less than 0.005% by weight of the cathode material mix.

Electrolyte For Electrochemical Device, Method For Preparing The Electrolyte And Electrochemical Device Including The Electrolyte

Disclosed is an electrolyte for an electrochemical device. The electrolyte includes a composite of a plastic crystal matrix electrolyte doped with an ionic salt and a crosslinked polymer structure. The electrolyte has high ionic conductivity comparable to that of a liquid electrolyte due to the use of the plastic crystal, and high mechanical strength comparable to that of a solid electrolyte due to the introduction of the crosslinked polymer structure. Further disclosed is a method for preparing the electrolyte. The method does not essentially require the use of a solvent. Therefore, the electrolyte can be prepared in a simple manner by the method. The electrolyte is suitable for use in a cable-type battery whose shape is easy to change due to its high ionic conductivity and high mechanical strength.

High performance lithium or lithium ion cell

Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

Electrolytes for rechargeable batteries

Provided are novel electrolytes for use in rechargeable lithium ion cells containing high capacity active materials, such as silicon, germanium, tin, and/or aluminum. These novel electrolytes include one or more pyrocarbonates and, in certain embodiments, one or more fluorinated carbonates. For example, dimethyl pyrocarbonate (DMPC) may be combine with mono-fluoroethylene carbonate (FEC). Alternatively, DMPC or other pyrocarbonates may be used without any fluorinated carbonates. A weight ratio of pyrocarbonates may be between about 0% and 50%, for example, about 10%. Pyrocarbonates may be combined with other solvents, such as ethylene carbonate (EC), propylene carbonate (PC), dimethyl carbonate (DMC), diethyl carbonate (DEC), and/or ethyl-methyl carbonate (EMC). Alternatively, pyrocarbonates may be used without such solvents. Experimental results conducted using electrochemical cells with silicon based electrodes demonstrated substantial improvements in cycle life when pyrocarbonate containing electrolytes were used in comparison with pyrocarbonate free electrolytes.

High performance lithium or lithium ion cell

Disclosed herein are lithium or lithium-ion batteries that employ an aluminum or aluminum alloy current collector protected by conductive coating in combination with electrolyte containing aluminum corrosion inhibitor and a fluorinated lithium imide or methide electrolyte which exhibit surprisingly long cycle life at high temperature.

Non-aqueous electrolyte type lithium ion secondary cell

There is provided a lithium ion secondary cell excellent in charging and discharging cycle characteristics. A lithium ion secondary cell includes an electrode body including a positive electrode having a positive electrode active material, a negative electrode having a negative electrode active material, and a separator, and a non-aqueous electrolyte containing a lithium salt as a supporting salt in an organic solvent, the electrode body and the non-aqueous electrolyte being accommodated in a case. The positive electrode active material is a lithium transition metal oxide having a spinel type structure. The electrolyte contains a compound represented by a chemical formula (I) in an amount of β mol relative to the total content α mol of moisture to be mixed in the cell. β satisfies −0.8 log(β/α)≦1.5.

Electrochemical cells with tabs

The present invention provides electrochemical cells and batteries having one or more electrically conductive tabs and carbon sheet current collectors, where the tabs are connected to the carbon sheet current collectors; and methods of connecting the tabs to the carbon based current collectors. In one embodiment, the electrically conductive tabs are metallic tabs.

Anode of cable-type secondary battery and manufacturing method thereof

Provided is a method for manufacturing an anode of a cable-type secondary battery having a solid electrolyte layer, including preparing an aqueous solution of an anode active material, making an anode by immersing a core as a current collector having a horizontal cross section of a predetermined shape and extending longitudinally in the aqueous solution, then applying an electric current to form a porous shell of the anode active material on the surface of the core, and forming a solid electrolyte layer on the surface of the anode by passing the anode through a solid electrolyte solution. The anode has a high contact area to increase the mobility of lithium ions, thereby improving battery performance. Also, the anode is capable of relieving stress and pressure in the battery, such as volume expansion during charging and discharging, thereby preventing battery deformation and ensuring battery stability.

Organic electrolyte solution including vinyl-based compound and lithium battery using the same

An organic electrolyte solution includes a lithium salt; an organic solvent including a high permittivity solvent and a low boiling solvent; and a vinyl-based compound represented by Formula 1 below, wherein m and n are each independently integers of 1 to 10; X 1 , X 2 , and X 3 each independently represent O, S, or NR 9 ; and R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , and R 9 are represented in the detailed description. The organic electrolyte solution of the present invention and a lithium battery using the same suppress degradation of an electrolyte, providing improved cycle properties and life span thereof.

Non-aqueous electrolytic solution for lithium secondary battery and lithium secondary battery using the same

A non-aqueous electrolytic solution is advantageously used in preparation of a lithium secondary battery excellent in cycle characteristics. In the non-aqueous electrolytic solution for a lithium secondary battery, an electrolyte salt is dissolved in a non-aqueous solvent. The non-aqueous electrolytic solution further contains a vinylene carbonate compound in an amount of 0.01 to 10 wt. %, and an alkyne compound in an amount of 0.01 to 10 wt. %.

Lithium sulfur battery

A lithium sulfur battery comprising an electrolyte solvent which comprises at least one fluorosubstituted compound is described. Preferred fluorosubstituted compounds which are predominantly solvents are notably selected from the group consisting of fluorosubstituted carboxylic acid esters, fluorosubstituted carboxylic acid amides, fluorosubstituted fluorinated ethers, fluorosubstituted carbamates, fluorosubstituted cyclic carbonates, fluorosubstituted acyclic carbonates, fluorosubstituted ethers, perfluoroalkyl phosphoranes, fluorosubstituted phosphites, fluorosubstituted phosphates, fluorosubstituted phosphonates, and fluorosubstituted heterocycles. Monofluoroethylene carbonate, cis-difluoroethylene carbonate, trans-difluoroethylene carbonate, 4,4-difluoroethylene carbonate, trifluoroethylene carbonate, tetrafluoroethylene carbonate, 4-fluoro-4-methyl-1,3-dioxolane-2-one, 4-fluoro-4-ethyl-1,3-dioxolane-2-one, 2,2,2-trifluoroethyl-methyl carbonate, 2,2,2-trifluoroethyl-fluoromethyl carbonate are preferred. The solvent may further comprise a non-fluorinated solvent, e.g., ethylene carbonate, a dialkyl carbonate, or propylene carbonate. Use of such fluorinated compound as additive for such batteries and specific electrolyte solutions.

Electrolyte for a lithium rechargeable battery, lithium rechargeable battery including the same, and method of manufacturing a lithium rechargeable battery

A lithium rechargeable battery, an electrolyte for a lithium rechargeable battery, and a method of manufacturing a lithium rechargeable battery, the battery including an electrode assembly; a case accommodating the electrode assembly; and an electrolyte in the case, wherein the electrolyte includes a lithium salt; a non-aqueous organic solvent, the non-aqueous organic solvent including about 50 wt % or more of an ester-based solvent; lithium difluoro(oxalato)borate; and a first additive, the first additive including at least one selected from tris(trialkylsilyl)phosphate, tris(trialkylsilyl)phosphite, and tris(trialkylsilyl)borate.

Aqueous paste for electrochemical cell, electrode plate for electrochemical cell obtained by applying the aqueous paste, and battery comprising the electrode plate

The aqueous paste for an electrochemical cell of the present invention comprises an aqueous dispersion for an electrochemical cell that comprises an olefin copolymer (a); an active material; and a conductive assistant, wherein the olefin copolymer (a) has a weight average molecular weight of not less than 50,000 and is at least one kind selected from a random propylene copolymer (a-1) containing 50% by weight to less than 85% by weight of a structural unit derived from propylene; an acid-modified random propylene copolymer (a-2) obtained by modifying the copolymer (a-1) with an acid; and an ethylene-(meth) acrylic acid copolymer (a-3) containing 5% by weight to less than 25% by weight of a structural unit derived from (meth) acrylic acid.

Nonaqueous electrolytic solution and nonaqueous electrolyte battery

A nonaqueous electrolytic solution that can provide a battery that is low in gas generation, has a large capacity, and is excellent in storage characteristics and cycle characteristics. The solution contains an electrolyte, a nonaqueous solvent, and one or more compounds represented by Formulae (2) and (3):

Fluoride ion electrochemical cell

The present invention provides electrochemical cells capable of good electronic performance, particularly high specific energies, useful discharge rate capabilities and good cycle life. Electrochemical cells of the present invention are versatile and include primary and secondary cells useful for a range of important applications including use in portable electronic devices. Electrochemical cells of the present invention also exhibit enhanced safety and stability relative to conventional state of the art primary lithium batteries and lithium ion secondary batteries. For example, electrochemical cells of the present invention include secondary electrochemical cells using anion charge carriers capable of accommodation by positive and negative electrodes comprising anion host materials, which entirely eliminate the need for metallic lithium or dissolved lithium ion in these systems.

Cell

A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

Production process for composite oxide, positive-electrode active material for lithium-ion secondary battery and lithium-ion secondary battery

A composite oxide, whose major component is a lithium-manganese-system oxide including Li and tetravalent Mn at least and having a crystal structure that belongs to a layered rock-salt structure, is produced via the following: a raw-material mixture preparation step of preparing a raw-material mixture by mixing a metallic-compound raw material and a molten-salt raw material with each other, the metallic-compound raw material at least including one or more kinds of metallic compounds being selected from the group consisting of oxides, hydroxides and metallic salts that include one or more kinds of metallic elements in which Mn is essential, the molten-salt raw material including lithium hydroxide and lithium nitrate, and exhibiting a proportion of the lithium hydroxide with respect to the lithium nitrate (i.e., (Lithium Hydroxide)/(Lithium Nitrate)) that falls in a range of from 1 or more to 10 or less by molar ratio; a molten reaction step of reacting said raw-material mixture at a melting point of said molten-salt raw material or more by melting it: and a recovery step of recovering said composite oxide being generated from said raw-material mixture that has undergone the reaction.

Nonaqueous electrolytic solution and nonaqeuous-electrolyte secondary battery

An object of the invention is to provide a nonaqueous electrolytic solution which is capable of bringing about a nonaqueous-electrolyte secondary battery improved in initial charge capacity, input/output characteristics, and impedance characteristics. The invention relates to a nonaqueous electrolytic solution which comprises: a nonaqueous solvent; LiPF 6 ; and a specific fluorosulfonic acid salt, and to a nonaqueous-electrolyte secondary battery containing the nonaqueous electrolytic solution.

Process for the preparation of perfluoroalkylcyano- or perfluoroalkylcyanofluoroborates

The invention relates to a process for the preparation of salts having perfluoroalkyltricyano- or perfluoroalkylcyanofluoroborate anions, ((per)fluoro)phenyltricyano- or ((per)fluoro)phenylcyanofluoroborate anions, phenyltricyanoborate anions which are mono- or disubstituted by perfluoroalkyl groups having 1 to 4 C atoms or phenylcyanofluoroborate anions which are mono- or disubstituted by perfluoroalkyl groups having 1 to 4 C atoms, by reaction of alkali metal trifluoroperfluoroalkylborate with trialkylsilyl cyanide and a subsequent salt-exchange reaction or by direct reaction of an organic trifluoroperfluoroalkyl borate with trialkylsilyl cyanide.

High rate, long cycle life battery electrode materials with an open framework structure

A battery includes a cathode, an anode, and an aqueous electrolyte disposed between the cathode and the anode and including a cation A. At least one of the cathode and the anode includes an electrode material having an open framework crystal structure into which the cation A is reversibly inserted during operation of the battery. The battery has a reference specific capacity when cycled at a reference rate, and at least 75% of the reference specific capacity is retained when the battery is cycled at 10 times the reference rate.

Lithium secondary battery using ionic liquid

A flame-retardant lithium secondary battery is provided that has better battery performance and higher safety than conventional batteries. The lithium secondary battery uses a positive electrode that includes a positive electrode active material of the general formula (I) below, and a nonaqueous electrolytic solution in which an ionic liquid that contains bis(fluorosulfonyl)imide anions as an anionic component is used as the solvent, (1) LiNixMny O 4 , wherein x and y are values that satisfy the relations x+y= 2, and x:y= 27.572.5 to 22.577.5.

Electrolyte Materials For Batteries And Methods For Use

An electrolyte solution comprising an additive wherein the additive is not substantially consumed during charge and discharge cycles of the electrochemical cell. Additives include Lewis acids, electron-rich transition metal complexes, and electron deficient pi-conjugated systems.

Lithium ion secondary battery

Disclosed is a lithium ion secondary battery having a positive electrode, a negative electrode and a non-aqueous electrolyte composition (electrolytic solution), characterized in that: the positive electrode includes a positive electrode active material represented by: aLi[Li 1/3 M1 2/3 ]O 2 .(1−a)LiM2O 2 (where M1 represents at least one kind of metal element selected from the group consisting of Mn, Ti, Zr and V; M2 represents at least one kind of metal element selected from the group consisting of Ni, Co, Mn, Al, Cr, Fe, V. Mg and Zn; and a represents a composition ratio and satisfies a relationship of 0<a<1); the negative electrode includes a negative electrode active material containing silicon; and the non-aqueous electrolyte composition includes a lithium salt (C n F 2n+1 SO 2 )(C m F 2m+1 SO 2 )NLi (where in and n each independently represent an integer of 2 or more as a support electrolyte. This lithium ion secondary battery attains a high capacity and good cycle characteristics.

Nonaqueous electrolyte secondary battery

Provided is a nonaqueous electrolyte secondary battery having improved durability properties in terms of cycling, storage and the like. The nonaqueous electrolyte secondary battery comprises a nonaqueous electrolyte solution that contains a lithium salt and a nonaqueous solvent that dissolves the lithium salt, a negative electrode capable of absorbing and releasing lithium ions, and a positive electrode. The negative electrode contains a negative electrode active material made up of graphite particles having a rhombohedral rate ranging from 0% to 35%, and the nonaqueous electrolyte solution contains a compound represented by formula (1). As a result, a nonaqueous electrolyte secondary battery that achieves the above object is provided.

Lithium ion battery

A lithium ion battery includes: a cathode that includes a cathode mix, which contains a cathode active material stably exhibiting a potential of 4.5 V or greater on the metallic lithium basis, a conducting material, and a binder, on a cathode collector; an anode; and a nonaqueous electrolyte that is obtained by dissolving a lithium salt in a nonaqueous solvent, in which a lithium fluoride is provided on at least a surface layer of the cathode collector.

Electrolyte for lithium secondary battery and lithium secondary battery including the same

An electrolyte for a lithium secondary battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and a polar additive based on a substituted hetero-bicyclic compound. Oxidation of the electrolyte is prevented by formation of a polar thin film on a surface portion of the positive electrode, which facilitates transfer of lithium ions. The lithium secondary batteries using the electrolyte have excellent high temperature life characteristics and high temperature conservation characteristics.

Lithium-sulphur battery

The invention relates to a lithium-sulphur battery, comprising (a) a first electrode comprising lithium, (b) a second electrode comprising sulphur and/or a lithium sulphide, (c) a separator between the electrodes (a) and (b), (d) an electrolyte in the separator, characterised in that the separator comprises a non-woven fabric made of polymer fibres.

Rechargeable lithium battery

A rechargeable lithium battery includes a negative electrode including a negative active material, a positive electrode including a positive active material, and an electrolyte including LiPO 2 F 2 and a sultone-based compound.

Secondary battery

An object is to provide a higher-performance secondary battery, particularly to provide a secondary battery having a low impedance. The present exemplary embodiment is a secondary battery comprising an electrode assembly in which a positive electrode and a negative electrode are arranged to face each other, an electrolyte liquid, and a package accommodating the electrode assembly and the electrolyte liquid, wherein the negative electrode includes a negative electrode active substance containing at least one selected from a metal (a) capable of being alloyed with lithium, and a metal oxide (b) capable of occluding and releasing lithium ions, a negative electrode binder, and a negative electrode current collector; and the electrolyte liquid contains a sulfide compound.

Dendrite-Inhibiting Salts in Electrolytes of Energy Storage Devices

The performance and the lifetime of energy storage devices can be hindered by the growth of metal dendrites during operation. Electrolytes having dendrite-inhibiting additives can result in significant improvement. In particular, energy storage devices having an electrode containing a metallic element, M1 can be characterized by a non-aqueous, liquid electrolyte having a first salt and a dendrite-inhibiting salt. The first salt can have a cation of M1 and the dendrite-inhibiting salt can have a cation of metallic element, M2, wherein the cation of M2 has an ionic size greater than, or equal to, the cation of M1.

Ionic liquids for batteries

An organic cation for a battery, including a heteroatom-containing cyclic compound having at least (2) ring structures formed from rings that share at least one common atom, the cyclic compound having both a formal positive charge of at least +1 and a partial negative charge.

Lithium ion secondary battery

A lithium-ion secondary battery capable of securing safety at a time of battery abnormality and restricting a drop in a high rate discharge property is provided. A lithium-ion secondary battery 1 has an electrode group 5 formed by winding a positive electrode plate 2 in which a positive electrode mixture including a positive electrode active material is formed at a collector and a negative electrode plate 3 in which a negative electrode mixture including a negative electrode active material is formed at a collector via a porous separator 4. A flame retardant is mixed to the positive electrode mixture of the positive electrode plate 2. The mode of pore diameters formed at the positive electrode mixture, which is measured by a mercury porosimetry, is set to a range of from 0.5 to 2.0 μm. The moving path for lithium-ions and at the same time the moving path for electrons are secured at a charge/discharge time.

Multilayer material, method for making same and use as electrode

A multilayer material including a solid substrate and at least two superimposed solid layers containing particles of an electrochemically active material, the first solid layer adhering to the solid substrate and the second solid layer adhering to the first solid layer. The multilayer material has a constant thickness of upper layer not less than 95% and a depth of penetration of the second layer into the first layer which is less than 10% of the thickness of the first layer, and enables as electrode constituent, generators having a low risk of overload degradation to be prepared.

Nonaqueous electrolyte secondary battery

In one embodiment, a nonaqueous electrolyte secondary battery includes an electrode group, a battery container, an insulation member, and a nonaqueous electrolyte solution. The electrode group includes a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode. The insulation member, which insulates the positive electrode and the negative electrode from the battery container and absorbs vibration, includes a resin and an inorganic material and has a bending elastic modulus between 600 MPa and 1,500 MPa, a specific heat between 0.25 cal/° C.·g and 0.40 cal/° C.·g, and a thermal conductivity between 0.3 W/m·K and 0.6 W/m·K.

ELECTRICITY STORAGE DEVICE

Provided is an electricity storage device that is able to suppress the reaction between an electrolyte contained in an electrolyte solution and a current collector, corrosion of the current collector, deterioration of the electrolyte solution, and reduction in energy capacity, and that has high potential, excellent stability and durability, and is highly reliable. The electricity storage device has a positive electrode having a positive-electrode active material layer on a positive electrode current collector, a negative electrode having a negative-electrode active material layer on a negative electrode current collector, a separator, and an electrolyte solution. The positive electrode current collector and/or the negative electrode current collector has a corrosion suppression film on the surface thereof, and a thickness of the corrosion suppression film is 50 nm or more. 1. An electricity storage device comprising a positive electrode having a positive electrode active material layer on a positive electrode current collector , a negative electrode having a negative electrode active material layer on a negative electrode current collector , a separator , and an electrolyte solution , wherein the positive electrode current collector , or the negative electrode current collector , or both has a corrosion suppression film on the surface thereof , and a thickness of the corrosion suppression film is 50 nm or more.2. The electricity storage device of claim 1 , wherein the corrosion suppression film is a film formed by vapor deposition.3. The electricity storage device of claim 1 , wherein the corrosion suppression film contains lithium fluoride.4. The electricity storage device of claim 1 , wherein the positive electrode current collector claim 1 , or the negative electrode current collector claim 1 , or both contains one or two or more species selected from aluminum claim 1 , nickel claim 1 , chromium claim 1 , stainless claim 1 , copper claim 1 , silver claim 1 , and ...

NON-AQUEOUS ELECTROLYTE SOLUTION AND USE THEREOF

The present invention provides a non-aqueous electrolyte solution that can be used as an electrolyte solution of a non-aqueous secondary battery to improve the discharge rate performance of the battery. The non-aqueous electrolyte solution comprises a non-aqueous solvent and a BF-cyclic ether complex. The BF-cyclic ether complex content is greater than zero part by mass, but less than 1 part by mass relative to 100 parts by mass of the total amount of other electrolyte solution components. Preferable examples of the BF-cyclic ether complex include BF-tetrahydropyran complex and BF-dioxane complex. 1. A non-aqueous electrolyte solution for a non-aqueous secondary battery comprising:a non-aqueous solvent; and{'sub': '3', 'a BF-cyclic ether complex;'}{'sub': '3', 'wherein the BF-cyclic ether complex is contained in an amount of greater than zero part by mass, but less than 1 part by mass relative to 100 parts by mass of other electrolyte solution components.'}2. The non-aqueous electrolyte solution according to claim 1 , wherein the BF-cyclic ether complex comprises at least one of BF-tetrahydropyran complex and BF-dioxane complexes.3. The non-aqueous electrolyte solution according to claim 1 , wherein 50% by volume or more of the non-aqueous solvent consists of one claim 1 , two or more species of carbonate-based solvent.4. A method for producing a lithium-ion secondary battery comprising:providing a positive electrode comprising a positive electrode active material, and a negative electrode comprising a negative electrode active material;{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'providing the non-aqueous electrolyte solution according to ; and'}constituting a lithium-ion secondary battery by placing the positive electrode, the negative electrode, and the non-aqueous electrolyte solution in a container.5. The method according to claim 4 , whereinthe negative electrode comprises a negative electrode active material portion comprising the negative electrode ...

Vanadium-zinc battery

A storage battery is provided comprising a positive electrode of vanadium, a negative electrode of zinc, and an electrolyte of potassium hydroxide dissolved in alcohol or glycol. Upon charging, the vanadium oxidizes to vanadium pentoxide and zinc oxide is reduced to the metal. The reverse reactions occur during discharge.

CRYSTALLINE, COMPLETELY SOLUBLE LITHIUM BIS(OXALATO)BORATE (LiBOB)

A crystalline, completely soluble lithium bis(oxalato)horate (LiBOB), to a method for producing the same and to the use of the lithium bis(oxalato)borate.

Indium-tin binary anodes for rechargeable magnesium-ion batteries

A rechargeable magnesium-ion battery includes a first electrode, a second electrode, and an electrolyte layer between the first electrode and the second electrode. The electrolyte includes a source of magnesium ions, such as a magnesium salt. The first electrode includes an active material, the active material including indium and tin, for example as a solid solution or intermetallic compound of indium and tin.

NONAQUEOUS ELECTROLYTE SOLUTION FOR BATTERIES, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY USING SAME

A nonaqueous electrolyte solution for secondary batteries, which maintains small internal resistance and high electrical capacitance in long-term use in a nonaqueous electrolyte secondary battery uses, as an active material, a crystalline carbon material having a high crystallinity, and a negative electrode produced using a polymeric carboxylic compound as a binding agent. The nonaqueous electrolyte solution contains: (A) at least one compound selected from a group consisting of an unsaturated phosphate ester compound represented by a general formula (1) and an unsaturated phosphate ester compound represented by a general formula (2); (B) at least one compound selected from a group consisting of a sulfite ester compound, a sulfonate ester compound, an alkali metal imide salt compound, a fluorosilane compound, an organic disilane compound or an organic disiloxane compound; (C) an organic solvent, and (D) an electrolyte salt. A secondary battery using such nonaqueous electrolyte solution is also described. 3. The nonaqueous electrolyte solution for batteries according to claim 1 , wherein the (C) component is a mixture of one or more organic solvent selected from a group consisting of a saturated cyclic carbonate compound claim 1 , a saturated cyclic ester compound claim 1 , a sulfone or sulfoxide compound claim 1 , and an amide compound with one or more organic solvents selected from a group consisting of a saturated chain carbonate compound claim 1 , a chain ether compound claim 1 , a cyclic ether compound claim 1 , and a saturated chain ester compound.4. The nonaqueous electrolyte solution for batteries according to claim 1 , wherein the (C) component is an organic solvent containing 0.5 to 30% by mass of the saturated chain ester compound.5. The nonaqueous electrolyte solution for batteries according to further comprising claim 1 , as an (E) component claim 1 , at least one carbonate compound selected from a group consisting of an unsaturated cyclic carbonate ...

LOW MOLECULAR WEIGHT SALTS COMBINED WITH FLUORINATED SOLVENTS FOR ELECTROLYTES

Provided are electrochemical cells and electrolytes used to build such cells. An electrolyte includes at least one salt having a molecular weight less than about 250. Such salts allow forming electrolytes with higher salt concentrations and ensure high conductivity and ion transport in these electrolytes. The low molecular weight salt may have a concentration of at least about 0.5M and may be combined with one or more other salts, such as linear and cyclic imide salts and/or methide salts. The concentration of these additional salts may be less than that of the low molecular weight salt, in some embodiments, twice less. The additional salts may have a molecular weight greater than about 250. The electrolyte may also include one or more fluorinated solvents and may be capable of maintaining single phase solutions at between about −30° C. to about 80° C. 1. An electrolyte for use in an electrochemical cell , the electrolyte comprising: 'the electrolyte salt having a molecular weight less than about 250;', 'a first electrolyte salt having a concentration of at least about 0.5M,'} the one or more fluorinated solvents comprising 1,1,1,2,3,3-hexafluoro-4-(1,1,2,3,3,3-hexafluoropropoxy)-pentane,', '1,1,1,2,3,3-hexafluoro-4-(1,1,2,3,3,3-hexafluoropropoxy)-pentane having a concentration of at least about 20% by weight excluding a weight of the electrolyte salt; and, 'one or more fluorinated solvents,'}a non-fluorinated solvent selected from the group consisting of an ester, an ether, and a carbonate, wherein the electrolyte is a one-phase solution at a temperature ranging from about −30° C. to about 80° C.2. The electrolyte according to claim 1 , wherein the one or more fluorinated solvents further comprises one of 1-methoxyheptafluoropropane claim 1 , methyl nonafluorobutyl ether claim 1 , ethyl nonafluorobutyl ether claim 1 , 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,2 claim 1 ,3 claim 1 ,4 claim 1 ,5 claim 1 ,5 claim 1 ,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane ...

COMBINATIONS OF FLUORINATED SOLVENTS WITH IMIDE SALTS OR METHIDE SALTS FOR ELECTROLYTES

Provided are electrochemical cells and electrolytes used to build such cells. The electrolytes include imide salts and/or methide salts as well as fluorinated solvents capable of maintaining single phase solutions at between about −30° C. to about 80° C. The fluorinated solvents, such as fluorinated carbonates, fluorinated esters, and fluorinated esters, are less flammable than their non-fluorinated counterparts and improve safety characteristics of cells containing these solvents. The amount of fluorinated solvents in electrolytes may be between about 30% and 80% by weight not accounting weight of the salts. Linear and cyclic imide salts, such as LiN(SOCFCF), and LiN(SOCF), as well as methide salts, such as LiC(SOCF)and LiC(SOCFCF), may be used in these electrolytes. Fluorinated alkyl groups enhance solubility of these salts in the fluorinated solvents. In some embodiments, the electrolyte may also include a flame retardant, such as a phosphazene, and/or one or more ionic liquids. 1. An electrolyte for use in an electrochemical cell , the electrolyte comprising:an electrolyte salt comprising one of a linear imide, a cyclic imide, or a methide salt, the one of the linear imide, the cyclic imide, or the methide salt comprising at least one fluorinated alkyl with a chain length of from 1 to 8;a fluorinated solvent selected from a group consisting of 1-methoxyheptafluoropropane, methyl nonafluorobutyl ether, ethyl nonafluorobutyl ether, 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane, 3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-trifluoromethyl-hexane, and 1,1,1,2,3,3-hexafluoro-4-(1,1,2,3,3,3-hexafluoropropoxy)-pentane, the fluorinated solvent being present at a concentration of between about 30% and 80% by weight excluding a weight of the electrolyte salt; anda non-fluorinated solvent selected from the group consisting of an ester, an ether, and a carbonate, wherein the electrolyte is a one-phase solution at a temperature ranging from about − ...

FLUOROALKYL CONTAINING SALTS COMBINED WITH FLUORINATED SOLVENTS FOR ELECTROLYTES

Provided are electrochemical cells and electrolytes used to build such cells. An electrolyte may include a fluoroalkyl-substituted LiPFsalt or a fluoroalkyl-substituted LiBFsalt. In some embodiments, at least one fluorinated alkyl of the salt has a chain length of from 1 to 8 or, more specifically, between about 2 and 8. These fluorinated alkyl groups, in particular, relatively large fluorinated alkyl groups improve solubility of these salts in fluorinated solvents that are less flammable than, for example, conventional carbonate solvents. At the same time, the size of fluoroalkyl-substituted salts should be limited to ensure adequate concentration of the salt in an electrolyte and low viscosity of the electrolyte. In some embodiments, the concentration of a fluoroalkyl-substituted salt is at least about 0.5M. Examples of fluorinated solvents include various fluorinated esters, fluorinated ethers, and fluorinated carbonates, such a 1-methoxyheptafluoropropane, methyl nonafluorobutyl ether, ethyl nonafluorobutyl ether, 1,1,1,2,2,3,4,5,5,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane, 3-ethoxy-1,1,1,2,3,4,4,5,5,6,6,6-dodecafluoro-2-trifluoromethyl-hexane, and 1,1,1,2,3,3-hexafluoro-4-(1,1,2,3,3,3-hexafluoropropoxy)-pentane. 2. The electrolyte according to claim 1 , wherein the fluorinated solvent is selected from a group consisting of 1-methoxyheptafluoropropane claim 1 , methyl nonafluorobutyl ether claim 1 , ethyl nonafluorobutyl ether claim 1 , 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,2 claim 1 ,3 claim 1 ,4 claim 1 ,5 claim 1 ,5 claim 1 ,5-decafluoro-3-methoxy-4-(trifluoromethyl)-pentane claim 1 , 3-ethoxy-1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,3 claim 1 ,4 claim 1 ,4 claim 1 ,5 claim 1 ,5 claim 1 ,6 claim 1 ,6 claim 1 ,6-dodecafluoro-2-trifluoromethyl-hexane claim 1 , and 1 claim 1 ,1 claim 1 ,1 claim 1 ,2 claim 1 ,3 claim 1 ,3-hexafluoro-4-(1 claim 1 ,1 claim 1 ,2 claim 1 ,3 claim 1 ,3 claim 1 ,3-hexafluoropropoxy)-pentane.3. The electrolyte ...

Electrochemical device and nonaqueous electrolyte solution for electrochemcial device

The present invention aims to provide an electrochemical device excellent in high temperature storage characteristics and cycling characteristics at high voltages, and a nonaqueous electrolyte for the electrochemical device. The present invention relates to an electrochemical device including: a positive electrode; a negative electrode; and a nonaqueous electrolyte containing a nonaqueous solvent and an electrolyte salt, wherein the nonaqueous solvent contains a fluorinated linear carbonate represented by the formula (1): RfOCOOR  (1) (wherein Rf represents a C1-4 fluorinated alkyl group and R represents a C1-4 alkyl group), and further contains following compounds of (I) to (III) in a total amount of not more than 5000 ppm relative to the fluorinated linear carbonate: (I) a compound represented by the formula (2) RfOH  (2) (wherein Rf is defined as above); (II) a compound represented by the formula (3) ROH  (3) (wherein R is defined as above); and (III) a compound represented by the formula (4) ROCOCl  (4) (wherein R is defined as above).

Advanced electrolyte systems and their use in energy storage devices

An ultracapacitor that includes an energy storage cell immersed in an advanced electrolyte system and disposed within a hermetically sealed housing, the cell electrically coupled to a positive contact and a negative contact, wherein the ultracapacitor is configured to output electrical energy within a temperature range between about −40 degrees Celsius to about 210 degrees Celsius. Methods of fabrication and use are provided.

Nonaqueous electrolyte secondary battery

A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly has a positive electrode, a negative electrode, and a separator. The positive electrode contains particles of a lithium transition metal compound as a positive electrode active material. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The nonaqueous electrolyte contains lithium difluorophosphate. The container houses the electrode assembly and the nonaqueous electrolyte. The battery capacity is not less than 21 Ah. The mean particle diameter (D 50 ) of the particles of the lithium transition metal compound is not less than 5 μm and not more than 15 μm. The (D 90 −D 10 )/D 50 of the particles of the lithium transition metal compound is under 1.1.

Gel Electrolyte, Preparing Method Thereof, Gel Electrolyte Battery, and Preparing Method Thereof

A gel electrolyte, a preparing method thereof, a gel electrolyte battery and a preparing method thereof are provided. The gel electrolyte comprises a non-aqueous solvent and a gel constituent, wherein the non-aqueous solvent comprises lithium salt, and the gel constituent comprises polyethylene glycol compounds with unsaturated double bonds, ester monomers with unsaturated double bonds, silane coupling agents and thermal initiators. The preparing method of the gel electrolyte battery includes preparing non-aqueous solvent containing lithium salts; dividing the prepared non-aqueous solvent containing lithium salts into two parts; adding initiators to one part to obtain a gel electrolyte part A; adding monomers and coupling agents to the other part to obtain a gel electrolyte part B; mixing the gel electrolyte part A and the gel electrolyte part B to obtain a gel electrolyte; injecting the obtained gel electrolyte into a dried battery and allowing the battery standing for 16 to 24 hours so as to sufficiently distribute the gel electrolyte inside the battery, and finally in-situ thermally polymerizing the gel electrolyte.

Method for producing lithium or sodium bis(fluorosulfonyl)imide

The invention relates to a process for the preparation of a bis(sulphonato)imide salt of formula: (III) (SO 3 − )—N − —(SO 3 ) 3 C +   (III) where C + represents a monovalent cation, comprising the reaction of amidosulphuric acid of formula: (OH)—SO 2 —NH 2   (I) with a halosulphonic acid of formula: (OH)—SO 2 —X  (II) where X represents a halogen atom, and comprising a reaction with a base which is a salt formed with the cation C + . The invention also relates to a process for the preparation of bis(fluorosulphonyl)imide acid of formula: F—(SO 2 )—NH—(SO 2 )—F  (V) and to a process for the preparation of lithium bis(fluorosulphonyl)imide salt of formula: F—(SO 2 )—N − —(SO 2 )—F Li + .  (VII)

Non-aqueous electrolyte secondary battery

To provide with high productivity a non-aqueous electrolyte secondary battery having high capacity and superior low temperature characteristics. The present invention is a non-aqueous electrolyte secondary battery including a positive electrode and a non-aqueous electrolyte containing a non-aqueous solvent, the non-aqueous electrolyte secondary battery characterized in that the non-aqueous solvent includes 30 to 70 vol % ethylene carbonate at 25° C. and 1 atm, the non-aqueous electrolyte includes a total of 0.01 to 0.10 mol/L lithium difluorophosphate and/or lithium monofluorophosphate, and the packing density of the positive electrode active material layer is from 2.0 to 2.8 g/ml.

Electrolyte for lithium secondary battery and lithium secondary battery comprising the same

The present disclosure relates to an electrolyte for a lithium secondary battery, comprising a non-aqueous solvent, a lithium salt and an additive having a perfluoroalkyl group. By including the additive having a specific structure in the electrolyte, the output of the lithium secondary battery can be improved greatly.

NON-AQUEOUS ELECTROLYTE FOR HIGH VOLTAGE RECHARGEABLE MAGNESIUM BATTERIES

An electrolyte for use in electrochemical cells is provided. The properties of the electrolyte include high conductivity, high Coulombic efficiency, and an electrochemical window that can exceed 3.5 V vs. Mg/Mg. The use of the electrolyte promotes the electrochemical deposition and dissolution of Mg without the use of any Grignard reagents, other organometallic materials, tetraphenyl borate, or tetrachloroaluminate derived anions. Other Mg-containing electrolyte systems that are expected to be suitable for use in secondary batteries are also described. 1. A non-aqueous electrolyte solution for use in an electrochemical cell , comprising:at least one organic solvent; and{'sub': n+1', '(2*n)', '2, 'at least one electrolytically active, soluble, inorganic Magnesium (Mg) salt complex represented by the formula MgXZin which n is in the range from one-quarter to four, X is a halide, and Z is an inorganic polyatomic monovalent anion.'}2. The non-aqueous electrolyte solution of claim 1 , wherein Z is a polyatomic monovalent anion selected from the group of polyatomic monovalent anions described in Table I claim 1 , and mixtures thereof.3. The non-aqueous electrolyte solution of claim 1 , wherein n is in the range from 0.25 to 4 claim 1 , said halide is chlorine.4. The non-aqueous electrolyte solution of claim 1 , wherein n is in the range from 0.25 to 4 claim 1 , said halide is chlorine claim 1 , and Z is N(CFSO).5. The non-aqueous electrolyte solution of claim 1 , a Mg molarity is in the range from 0.1 M to 2 M.6. The non-aqueous electrolyte solution of claim 1 , wherein a solution conductivity is greater than 1 mS/cm at 25 degrees Celsius.7. The non-aqueous electrolyte solution of claim 1 , a solution Coulombic efficiency is greater than 98% at 25 degrees Celsius.8. The non-aqueous electrolyte solution of claim 1 , wherein said at least one organic solvent is a solvent selected from the group consisting of an ether claim 1 , an organic carbonate claim 1 , a lactone claim ...

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD OF USING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

A nonaqueous electrolyte secondary battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte, the positive electrode containing, as a positive active material, a lithium transition metal composite oxide having an α-NaFeOtype crystal structure, a molar ratio of Li to Me, Li/Me of more than 1, Me representing transition metal elements including Ni and Mn or including Ni, Mn, and Co, and a molar ratio of Mn to Me, Mn/Me of 0.40 or more and 0.65 or less, and the nonaqueous electrolyte containing, as an electrolyte salt, LiPFand a lithium imide salt. 1. A nonaqueous electrolyte secondary battery comprising a positive electrode , a negative electrode , and a nonaqueous electrolyte ,the positive electrode containing, as a positive active material, a lithium transition metal composite oxide having{'sub': '2', 'an α-NaFeOtype crystal structure,'}a molar ratio of Li to Me, Li/Me of more than 1, Me representing transition metal elements including Ni and Mn or including Ni, Mn, and Co, anda molar ratio of Mn to Me, Mn/Me of 0.40 or more and 0.65 or less, and{'sub': '6', 'the nonaqueous electrolyte containing, as an electrolyte salt, LiPFand a lithium imide salt.'}2. The nonaqueous electrolyte secondary battery according to claim 1 , wherein the lithium transition metal composite oxide contained claim 1 , as a positive active material claim 1 , in the positive electrode has a molar ratio of Li to Me claim 1 , Li/Me of 1.15 or more and 1.30 or less.3. The nonaqueous electrolyte secondary battery according to claim 1 , wherein the lithium imide salt contained claim 1 , as an electrolyte salt claim 1 , in the nonaqueous electrolyte is LiN(FSO).4. The nonaqueous electrolyte secondary battery according to claim 1 , wherein the positive active material contained in the positive electrode has a diffraction peak observed in a range of 20 to 22° in an X-ray diffraction diagram obtained using a CuKα ray.5. The nonaqueous electrolyte secondary battery ...

SECONDARY BATTERY

A method of manufacturing a secondary battery is disclosed. In one aspect, a method of manufacturing a secondary battery includes assembling the secondary battery by receiving an electrode assembly including a first pole plate, a second pole plate and a separator between the first and second pole plates, along with an electrolyte, in a battery case. The method further includes precharging the secondary battery, leaving the secondary battery at room temperature and performing first charging and first discharging of the secondary battery. 1. A method of manufacturing a secondary battery comprising:assembling the second battery by storing an electrode assembly in a battery case with an electrolyte including a lithium salt, the electrode assembly including a first electrode plate, a second electrode plate and a separator between the first and second electrode plates;precharging the secondary battery;storing the secondary battery at room temperature for a predetermined time; andperforming first charging and first discharging of the secondary battery multiple times.2. The method of claim 1 , wherein the first charging comprises charging the secondary battery with a constant current-constant voltage (CC-CV) to the range of about 3.5V to about 3.8V with a current in the range of about 0.2 C to about 1.0 C claim 1 , wherein the first discharging comprises discharging the secondary battery with a constant current (CC) claim 1 , and wherein C is a rated power of the secondary battery.3. The method of claim 2 , wherein the first charging further comprises charging the secondary battery to the range of about 3.5V to about 3.8V with a current in the range of about 0.2 C to about 0.5 C and wherein the first discharging further comprises discharging the secondary battery to the range of about 2.6V to about 2.8V with a current of about 0.5 C.4. The method of claim 1 , wherein the first charging and the first discharging are each performed three times or more.5. The method of claim 4 ...

METHOD FOR JUDGING AMOUNT OF IMPURITIES IN SOLVENT FOR ELECTROLYTE LIQUID, METHOD FOR PRODUCING ELECTROLYTE LIQUID USING SAME, AND ELECTROLYTE LIQUID

Provided are a method for judging the amount of impurities in a solvent for an electrolyte liquid to be used in a non-aqueous electrolyte liquid battery, that enables judging, more easily than conventionally, the amount in which several types of impurities causing degradation of battery performance is contained in the solvent; a method for producing an electrolyte liquid using this judging method; and an electrolyte liquid. The judging method includes: obtaining a reaction solution by adding a Lewis acid to the solvent; measuring the Hazen value of the reaction solution; and judging whether the value is no more than a predetermined threshold. The producing method includes mixing, with an electrolytic salt, the solvent for which the Hazen value has been judged to be no more than the threshold by the judging method. The electrolyte liquid contains: the solvent with the Hazen value as judged above; and an electrolytic salt. 1. A method for judging the amount of impurities in a solvent for an electrolyte liquid to be used in a non-aqueous electrolyte liquid battery , the method comprising:a reacting step of obtaining a reaction solution by adding a Lewis acid to the solvent for an electrolyte liquid;a Hazen value measuring step of measuring the Hazen value of the reaction solution; anda judging step of judging whether the Hazen value is no more than a predetermined threshold.2. The method for judging according to claim 1 , wherein the solvent for an electrolyte liquid is at least one selected from the group consisting of ethylene carbonate claim 1 , ethylmethyl carbonate claim 1 , diethyl carbonate claim 1 , dimethyl carbonate and propylene carbonate; and {'br': None, '200×a+60×b+60×c+80×d+160×e,'}, 'the threshold is represented by the formula belowwherein a is the volume fraction of ethylene carbonate, b is the volume fraction of ethylmethyl carbonate, c is the volume fraction of diethyl carbonate, d is the volume fraction of dimethyl carbonate, and e is the volume ...

Electrochemical cell, energy storage system and vehicle comprising such a system

An electrochemical cell including a shell delimiting a space filled with an electrolytic solution, and a set of at least two different electrochemical systems selected from among a supercapacitor, a hybrid supercapacitor, and an accumulator, the set being arranged in the space filled with the electrolytic solution. A system for storing and restoring electric energy, or a vehicle, or a hybrid vehicle car can include such an electrochemical cell and can include such a system for storing and restoring electric energy.

LITHIUM ION SECONDARY BATTERY

Provided is a lithium ion secondary battery including: a positive electrode; a negative electrode; a separator; and an electrolyte solution, the electrolyte solution including an additive A containing sulfur, and at least one of a cyclic carbonate additive B which is different from the additive A and which has an unsaturated bond and a cyclic carbonate additive C which is different from the additives A and B and which has a halogen. A molar ratio of the additive A relative to a total molar amount of the additive A, the additive B, and the additive C is smaller than a total of a molar ratio of the additive B and a molar ratio of the additive C relative to the total molar amount. 1. A lithium ion secondary battery comprising:a positive electrode;a negative electrode;a separator; andan electrolyte solution, the electrolyte solution including an additive A containing sulfur, and at least one of a cyclic carbonate additive B which is different from the additive A and which has an unsaturated bond and a cyclic carbonate additive C which is different from the additives A and B and which has a halogen, wherein a molar ratio of the additive A relative to a total molar amount of the additive A, the additive B, and the additive C is smaller than a total of a molar ratio of the additive B and a molar ratio of the additive C relative to the total molar amount.2. The lithium ion secondary battery according to claim 1 , wherein the molar ratio of the additive A is smaller than 50 mol %.3. The lithium ion secondary battery according to claim 1 , wherein both the additive B and the additive C are included.4. The lithium ion secondary battery according to claim 1 , wherein the additive A is a cyclic disulfonic acid ester compound.5. The lithium ion secondary battery according to claim 1 , wherein the additive B is vinylene carbonate.6. The lithium ion secondary battery according to claim 1 , wherein the additive C is 4-fluoroethylene carbonate.7. The lithium ion secondary battery ...

NON-AQUEOUS ELECTROLYTE AND LITHIUM ION BATTERY

Provided is a non-aqueous electrolyte, comprising a solvent, a lithium salt, an additive A and an additive B, the additive A is selected from compound represented by structural formula 1, and the additive B is selected from one or more of compounds represented by structural formula 2 and structural formula 3: 2. The non-aqueous electrolyte of claim 1 , wherein the mass percentage of the additive A is 0.1%-2% claim 1 , and the mass percentage of the additive B is less than 0.5% claim 1 , based on the mass percentage of the non-aqueous electrolyte being 100%.4. The non-aqueous electrolyte of claim 1 , wherein the non-aqueous electrolyte further comprises one or more of vinylene carbonate claim 1 , vinylethylene carbonate and fluoroethylene carbonate.5. The non-aqueous electrolyte of claim 1 , wherein the non-aqueous electrolyte further comprises one or more of 1 claim 1 ,3-propane sultone and 1 claim 1 ,4-butane sultone.6. The non-aqueous electrolyte of claim 1 , wherein the solvent comprises one or more of ethylene carbonate claim 1 , propylene carbonate claim 1 , butylene carbonate claim 1 , dimethyl carbonate claim 1 , diethyl carbonate claim 1 , ethyl methyl carbonate and methyl propyl carbonate.7. The non-aqueous electrolyte of claim 1 , wherein the lithium salt comprises one or more of LiPF claim 1 , LiBF claim 1 , LiBOB claim 1 , LiSbF claim 1 , LiAsF claim 1 , LiN(SOCF) claim 1 , LiN(SOCF) claim 1 , LiC(SOCF)and LiN(SOF).9. The lithium ion battery of claim 8 , wherein the positive electrode comprises a positive electrode active material claim 8 , and the positive electrode active material is LiNiCoMnLO claim 8 , wherein L is Al claim 8 , Sr claim 8 , Mg claim 8 , Ti claim 8 , Ca claim 8 , Zr claim 8 , Zn claim 8 , Si claim 8 , Cu claim 8 , V or Fe claim 8 , 0≤x≤1 claim 8 , 0≤y≤1 claim 8 , 0≤z≤1 claim 8 , 0≤x+y+z≤1.10. The lithium ion battery of claim 9 , wherein the positive electrode active material is LiCoLO claim 9 , and L is Al claim 9 , Sr claim 9 , Mg ...

Electrolytic solution, electrochemical device, lithium ion secondary battery, and module

The present invention aims to provide an electrolytic solution which restrains gas generation and has excellent battery characteristics. The electrolytic solution includes a nonaqueous solvent (I), an electrolyte salt (II), and 0.001 to 20% by mass of a compound represented by the formula (1) or the formula (A), R 1 —ORf 1 —(ORf 2 ) l —(ORf 3 ) m —CN  (1) wherein R 1 represents CH 3 —Rf—, CH 2 F—Rf—, or CHF 2 —Rf—, and Rf in R 1 represents an alkylene group which may optionally have a fluorine atom, Rf 1 , Rf 2 , and Rf 3 may be the same as or different from each other, and individually represent a C1-C3 fluorinated alkylene group, and l and m may be the same as or different from each other, and individually represent an integer of 0 to 5, RA 1 -ORf A1 —(ORf A2 ) l —(ORf A3 ) m —CN  (A) wherein R A1 represents a C2-C9 group having an unsaturated bond, Rf A1 , Rf A2 , and Rf A3 may be the same as or different from each other, and individually represent a C1-C3 alkylene group which may optionally have a fluorine atom, and l and m may be the same as or different from each other, and individually represent an integer of 0 to 5.

IONIC LIQUID-ENABLED HIGH-ENERGY LI-ION BATTERIES

Various embodiments of the present disclosure describe energy storage devices. In one example, an energy storage device includes an anode having a plurality of active material particles, a cathode having a transition metal oxide material, and an electrolyte including a room temperature ionic liquid to couple the anode to the cathode. Each of the plurality of anode active material particles have a particle size of between about one micrometer and about fifty micrometers. One or more of the plurality of anode active material particles are enclosed by and in contact with a membrane coating permeable to lithium ions. 1. An energy storage device comprising:an anode including a plurality of active material particles, each of the plurality of active material particles having a particle size of between about one micrometer and about fifty micrometers, wherein one or more of the plurality of active material particles are enclosed by and in contact with a membrane coating permeable to lithium ions;a cathode including a transition metal oxide material; andan electrolyte including a room temperature ionic liquid coupling the anode to the cathode.2. The energy storage device of claim 1 , wherein the plurality of active material particles comprise a plurality of silicon particles.3. The energy storage device of claim 1 , wherein the anode comprises one or more of hard-carbon claim 1 , graphite claim 1 , tin claim 1 , and germanium particles mixed with the plurality of active material particles.4. The energy storage device of claim 1 , wherein the membrane coating comprises a polyacrylonitrile coating.5. The energy storage device of claim 1 , wherein the transition metal oxide material comprises an over-lithiated oxide material.6. The energy storage device of claim 1 , wherein the transition metal oxide material has a formula (x)LiMnO(1-x)LiRO claim 1 , where Ris at least one of Mn claim 1 , Ni claim 1 , Co claim 1 , and a cation or anion dopant claim 1 , and x is greater than ...

ELECTROLYTE MATERIALS FOR USE IN ELECTROCHEMICAL CELLS

Electrolyte materials for use in electrochemical cells, electrochemical cells comprising the same, and methods of making such materials and cells, are generally described. In some embodiments, the materials, processes, and uses described herein relate to electrochemical cells comprising sulfur and lithium such as, for example, lithium sulfur batteries. 1. An electrochemical cell , comprising:a first electrode comprising lithium metal;a second electrode;a lithium bis-oxalatoborate salt; andat least one of a lithium nitrate salt, a guanidium nitrate salt, and a pyridinium nitrate salt.2. The electrochemical cell of claim 1 , comprising the lithium nitrate salt.3. The electrochemical cell of claim 1 , comprising the guanidium nitrate salt.4. The electrochemical cell of claim 1 , comprising the pyridinium nitrate salt.5. The electrochemical cell of claim 1 , further comprising an electrolyte.6. The electrochemical cell of claim 5 , wherein the electrolyte is a polymer gel electrolyte.7. The electrochemical cell of claim 5 , wherein the electrolyte has a yield strength greater than a yield strength of lithium metal.8. The electrochemical cell of claim 5 , wherein the lithium bis-oxalatoborate salt is present in the electrolyte.9. The electrochemical cell of claim 8 , wherein a concentration of the oxalatoborate-containing salt in the electrolyte is from about 0.5 M to about 2.0 M.10. The electrochemical cell of claim 5 , wherein the at least one of the lithium nitrate salt claim 5 , guanidium nitrate salt claim 5 , and pyridinium nitrate salt is present in the electrolyte.11. The electrochemical cell of claim 10 , wherein the electrolyte has a salt concentration of about 0.5 M to about 2.0 M.12. The electrochemical cell of claim 10 , wherein the electrolyte has a salt concentration of about 0.8 M to about 1.2 M.13. The electrochemical cell of claim 10 , wherein the electrolyte has a salt concentration of about 0.7 M to about 1.5 M.14. The electrochemical cell of claim 1 ...

Lithium ion secondary battery

A lithium ion secondary battery includes: a cathode; an anode: a separator; and an electrolytic solution containing lithium hexafluorophosphate (LiPF 6 ) as a lithium salt, wherein the cathode includes a current collector and a cathode mixture formed on the current collector, and wherein the cathode mixture contains an aluminum oxide, a part or an entirety of a surface of the aluminum oxide being coated with carbon.

ELECTROCHEMICAL CELLS THAT INCLUDE LEWIS ACID: LEWIS BASE COMPLEX ELECTROLYTE ADDITIVES

An electrolyte solution includes a solvent; an electrolyte salt; and a LA:LB complex represented by the following general formula I: [(FnA)x-L] (I) In formula I, A is boron or phosphorous, F is fluorine, L is an aprotic organic amine, n is 3 or 5, when n=3, A is boron, and when n=5, A is phosphorous, x is an integer from 1-3, and at least one N atom of the aprotic organic amine, L, is bonded directly to A. The LA:LB complex is present in the solution in an amount of between 0.01 and 5.0 wt. %, based on the total weight of the electrolyte solution. 1. An electrolyte solution comprising:a solvent;an electrolyte salt; and {'br': None, 'sub': n', 'x, '[(FA)-L]\u2003\u2003(I)'}, 'a LA:LB complex represented by the following general formula Iwhere A is boron or phosphorous,F is fluorine,L is an aprotic organic amine,n is 3 or 5,when n=3, A is boron, and when n=5, A is phosphorous,x is an integer from 1-3, andat least one N atom of the aprotic organic amine, L, is bonded directly to A, andwherein the LA:LB complex is present in the solution in an amount of between 0.01 and 5.0 wt. %, based on the total weight of the electrolyte solution.2. The electrolyte solution of claim 1 , wherein the aprotic organic amine comprises at least one nitrogen atom with a non-bonding electron pair that is available for bonding with an empty orbital of the Lewis acid.3. The electrolyte solution according to claim 1 , wherein the aprotic organic amine comprises a tertiary amine.4. The electrolyte solution according to claim 1 , wherein the aprotic organic amine comprises a heteroaromatic amine.5. The electrolyte solution according to claim 1 , wherein excess Lewis acid or Lewis base is present in the electrolyte solution at less than 5 mol % based on the stoichiometry of general formula I.6. The electrolyte solution according to claim 1 , wherein the solvent comprises an organic carbonate.7. The electrolyte solution according to claim 1 , wherein the solvent comprises ethylene carbonate claim ...

LITHIUM SECONDARY BATTERY COMPRISING ELECTROLYTE

The present invention relates to a lithium secondary battery. The lithium secondary battery includes a positive electrode including a positive active material; a negative electrode including a negative active material; and an electrolyte including a non-aqueous organic solvent, a lithium salt, and an additive including a compound represented by Chemical Formula 1. The negative active material includes Si at about 0.1 wt % to about 32 wt % in amount based on a total weight of the negative active material. 2. The lithium secondary battery of claim 1 , wherein in Chemical Formula 1 claim 1 , A is a Cto Chydrocarbon chain or (—CH—O—CH—)n claim 1 , and n is an integer from 1 to 5.4. The lithium secondary battery of claim 1 , wherein the additive is 0.1 wt % to 3 wt % in amount based on a total amount of the electrolyte.5. The lithium secondary battery of claim 1 , wherein the additive is 0.15 wt % to 2 wt % in amount based on a total amount of the electrolyte.6. The lithium secondary battery of claim 1 , wherein the negative active material comprises:i) a core comprising a mixture of crystalline carbon and Si, and an amorphous carbon coating layer surrounding the core; orii) a core comprising crystalline carbon and Si adhered to a surface of the core.7. The lithium secondary battery of claim 1 , wherein the additive further comprises an additional additive selected from fluoroethylene carbonate claim 1 , vinylene carbonate claim 1 , vinyl ethylene carbonate claim 1 , succinonitrile claim 1 , hexane tricyanide claim 1 , lithium tetrafluoroborate claim 1 , and propane sultone.8. The lithium secondary battery of claim 7 , wherein the additional additive is 0.1 wt % to 20 wt % in amount based on a total amount of the electrolyte.9. The lithium secondary battery of claim 1 , wherein the positive active material comprises a nickel-containing lithium transition metal compound.10. The lithium secondary battery of claim 9 , wherein nickel is about 60 mol % or more in amount based ...

ELECTROLYTE, ELECTROCHEMICAL DEVICE, LITHIUM ION SECONDARY BATTERY, AND MODULE

An electrolyte solution containing LiFSOand a compound (1) represented by the following formula (1): LiZ, wherein Z is PF, BF, N(FSO), N(CFSO), N(CFSO), POF, or B(CO). The electrolyte solution has a ratio [FSO]/[Z] of a molar content of FSO[FSO] to a molar content of Z [Z] of 3 to 1000. Also disclosed is an electrochemical device including the electrolyte solution, a lithium ion secondary battery including the electrolyte solution and a module including the electrochemical device. 2. The electrolyte solution according to claim 1 ,{'sub': '3', 'wherein the electrolyte solution contains LiFSOat a concentration of 0.01 to 5.0 mol/L.'}3. An electrochemical device comprising the electrolyte solution according to .4. A lithium ion secondary battery comprising the electrolyte solution according to .5. A module comprising the electrochemical device according to .6. A module comprising the lithium ion secondary battery according to . The invention relates to electrolyte solutions, electrochemical devices, lithium ion secondary batteries, and modules.Current electric appliances demonstrate a tendency to have a reduced weight and a smaller size, which leads to development of electrochemical devices such as lithium-ion secondary batteries having a high energy density. Further, electrochemical devices such as lithium-ion secondary batteries are desired to have improved characteristics as they are applied to more various fields. Improvement in battery characteristics will become more and more important particularly when lithium-ion secondary batteries are put in use for automobiles.Patent Literature 1 discloses a secondary battery including a first electrode (4), a counter electrode (3), an alkali metal incorporated in at least one of the electrodes, an electrolyte containing an organic solvent, a salt of the alkali metal, and at least one sequestering agent capable of complexing with a moiety of the electrolyte salt, the first electrode including a composition consisting ...

SULFUR NANOSPONGE CATHODE FOR LITHIUM-SULFUR BATTERY AND METHODS OF MANUFACTURE THEREOF

The present invention is directed to lithium-sulfur batteries exhibiting a high capacity, high cycle life with low production cost and improved safety. 1. A cathode comprising a nanostructured sponge having a sulfur-covering-carbon structure prepared by a method comprising:functionalizing the surface of conductive carbon black particles, thereby forming hydroxyl and/or carboxyl groups on the surface of the conductive carbon black particles;dispersing a mixture comprising sulfur particles and at least one surfactant in a matrix of the functionalized conductive carbon black particles; andheating the dispersed sulfur particles and functionalized conductive carbon black particles for a time and to a temperature above the melting point of sulfur, whereby the sulfur forms a coating over the functionalized conductive carbon black particles to form the nanostructured sponge having the sulfur-covering-carbon structure.2. The cathode of claim 1 , comprising sulfur-carbon clusters smaller than about 10 μm.3. A lithium battery comprising an anode claim 1 , the cathode of claim 1 , and an electrolyte.4. The lithium battery of claim 3 , wherein the anode is selected from the group consisting of carbon claim 3 , silicon claim 3 , silicon/carbon composite claim 3 , lithium titanate claim 3 , and tin cobalt alloy.5. The lithium battery of claim 3 , wherein the electrolyte is selected from the group consisting of electrolyte containing lithium salts and combination of linear and cyclic carbonates.6. A nanostructured sponge cathode comprising:a conductive carbon black matrix and sulfur, wherein the sulfur is disposed over the conductive carbon black particles to provide a sulfur-over-carbon structure.7. The nanostructured sponge cathode of claim 6 , wherein the particle size of said conductive carbon black particles ranges from 80 nm to 800 nm.8. The nanostructured sponge cathode of claim 6 , wherein the sulfur is substantially amorphous.9. The nanostructured sponge cathode of claim 6 ...

LITHIUM SECONDARY BATTERY INCLUDING ELECTROLYTE CONTAINING LITHIUM BORON COMPOUND

A lithium secondary battery includes a positive electrode, a negative electrode depositing a lithium metal in a charged state, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte containing a nonaqueous solvent and a lithium salt represented by a formula LiB(CHR), where Rs each independently represent F or CF, and m is an integer of 1 to 5. 1. A lithium secondary battery comprising:a positive electrode;a negative electrode on which a lithium metal is deposited in a charged state;a separator disposed between the positive electrode and the negative electrode; and a nonaqueous solvent, and', {'sub': 6', '5-m', 'm', '4', '3, 'a lithium salt represented by a formula LiB(CHR), where Rs each independently represent F or CF, and m is an integer of 1 to 5.'}], 'a nonaqueous electrolyte containing'}2. The lithium secondary battery according to claim 1 , wherein{'sub': 6', '3', '2', '4', '6', '5', '4', '6', '3', '3', '2', '4, 'the lithium salt is at least one selected from the group consisting of LiB(CHF), LiB(CF), and LiB(CH(CF)).'}3. The lithium secondary battery according to claim 1 , whereina concentration of the lithium salt in the nonaqueous electrolyte is 0.01 mol/L or more.4. The lithium secondary battery according to claim 1 , whereinthe negative electrode in a fully discharged state is composed of only a negative electrode current collector not containing a lithium metal.5. The lithium secondary battery according to claim 4 , whereinthe negative electrode current collector includes a copper foil.6. The lithium secondary battery according to claim 1 , wherein{'sub': 6', '2', '3', '2', '2', '2', '5', '2', '2', '2, 'the nonaqueous electrolyte further contains at least one selected from the group consisting of LiPF, LiN(SOCF), LiN(SOCF), LiN(SOF), and lithium salts containing oxalate complexes as anions.'}7. The lithium secondary battery according to claim 1 , whereinthe nonaqueous electrolyte further contains at ...

ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME

The present invention relates to an electrolyte solution for a lithium secondary battery that includes an additive for forming a stable SEI film and a protective layer on a surface of an electrode to prevent a chemical reaction between the electrolyte solution and the electrode, and a lithium secondary battery having improved life characteristics and high-temperature stability by including the same. 2. The electrolyte solution of claim 1 , wherein claim 1 , in Chemical Formula 1 claim 1 , R is a linear alkylene group with a carbon number of 1 to 3 claim 1 , Ris an arylene group with a carbon number of 5 to 8 claim 1 , and n is an integer of 0 to 5.4. The electrolyte solution of claim 1 , wherein the compound represented by Chemical Formula 1 is included in an amount of 0.05 wt % to 7 wt % based on a total weight of the non-aqueous electrolyte solution.5. The electrolyte solution of claim 4 , wherein the compound represented by Chemical Formula 1 is included in an amount of 0.1 wt % to 5 wt % based on a total weight of the non-aqueous electrolyte solution.6. The electrolyte solution of claim 1 , wherein the electrolyte salt consists of a combination of (i) at least one positive ion selected from the group consisting of Li claim 1 , Na claim 1 , and K and (ii) at least one negative ion selected from the group consisting of PF claim 1 , BF claim 1 , Cl claim 1 , Br claim 1 , ClO claim 1 , AsF claim 1 , BCl claim 1 , CHCO claim 1 , CFSO claim 1 , CFSO claim 1 , SbF claim 1 , AlCl claim 1 , AlO claim 1 , CHSO claim 1 , N(CFSO) and C(CFSO).7. The electrolyte solution of claim 6 , wherein the electrolyte salt is any one or a mixture of two or more selected from the group consisting of LiCl claim 6 , LiBr claim 6 , LiI claim 6 , LiClO claim 6 , LiBF claim 6 , LiBCl claim 6 , LiPF claim 6 , LiCFSO claim 6 , LiCHCO claim 6 , LiCFCO claim 6 , LiAsF claim 6 , LiSbF claim 6 , LiAlCl claim 6 , LiAlO claim 6 , LiCHSO claim 6 , chloroborane lithium claim 6 , lower aliphatic lithium ...

LITHIUM TITANATE POWDER FOR ELECTRODE OF ENERGY STORAGE DEVICE, ACTIVE MATERIAL, AND ELECTRODE SHEET AND ENERGY STORAGE DEVICE USING THE SAME

An object of the present invention is to provide a lithium titanate powder and an active material which, in the case of being applied as an electrode material of an energy storage device, can suppress the gas generation at high temperatures and the capacity reduction in high-temperature charge and discharge cycles and besides can also suppress the resistance rise in the high-temperature charge and discharge cycles, an electrode sheet, of an energy storage device, containing these, and an energy storage device using the electrode sheet. The lithium titanate powder contains LiTiOas a main component, wherein the powder contains secondary particles being aggregates of primary particles composed of lithium titanate, and has a Dof 0.03 μm or more and 0.6 μm or less and a D50 of 3 μm or more and 40 μm or less where the Drepresents a specific surface area-equivalent diameter calculated from a specific surface area determined by a BET method, and the D50 represents a median particle diameter in volume, a ratio D50/D(μm/μm) of D50 to Dof 20 or more and 350 or less, a moisture amount (25° C. to 350° C.) of 600 ppm or less as measured by Karl Fischer's method, and an average 10%-compressive strength of the secondary particles of 0.1 MPa or more and 3 MPa or less. 1. A lithium titanate powder , comprising LiTiOas a main component ,wherein the lithium titanate powder comprises secondary particles being aggregates of primary particles composed of lithium titanate; and{'sub': BET', 'BET, 'the lithium titanate powder has: a Dof 0.03 μm or more and 0.6 μm or less and a D50 of 3 μm or more and 40 μm or less where the Drepresents a specific surface area-equivalent diameter calculated from a specific surface area determined by a BET method, and the D50 represents a median particle diameter in volume;'}{'sub': BET', 'BET, 'a ratio D50/D(μm/μm) of D50 to Dof 20 or more and 350 or less;'}a moisture amount (25° C. to 350° C.) of 600 ppm or less as measured by Karl Fischer's method; andan ...

FUNCTIONAL ORGANIC SALT FOR LITHIUM-ION BATTERIES

An electrolyte for a lithium-ion electrochemical cell comprises a non-aqueous solution of a lithium salt and a redox shuttle salt compound in a non-aqueous solvent, wherein the redox shuttle compound comprises an amino-substituted cyclopropenium salt of Formula (I) as described herein. 2. The electrolyte of claim 1 , wherein R and R′ independently are Cto Calkyl.3. The electrolyte of claim 1 , wherein R and R′ are ethyl.4. The electrolyte of claim 1 , wherein X is a halide.5. The electrolyte of claim 1 , wherein X is chloride.6. The electrolyte of claim 1 , wherein X is a sulfonimidate anion.8. The electrolyte of claim 1 , wherein X is bis(trifluoromethanesulfonyl)imidate anion.11. The electrolyte of claim 1 , wherein the lithium salt comprises one or more of lithium bis(trifluoromethanesulfonyl)imidate (LiTFSI) claim 1 , lithium 2-trifluoromethyl-4 claim 1 ,5-dicyanoimidazolate (LiTDI) claim 1 , lithium 4 claim 1 ,5-dicyano-1 claim 1 ,2 claim 1 ,3-triazolate (LiTDI) claim 1 , lithium trifluoromethanesulfonate (LiTf) claim 1 , lithium perchlorate (LiClO) claim 1 , lithium bis(oxalato)borate (LiBOB) claim 1 , lithium difluoro(oxalato)borate (LiDFOB) claim 1 , lithium tetrafluoroborate (LiBF) claim 1 , lithium hexafluorophosphate (LiPF) claim 1 , lithium thiocyanate (LiSCN) claim 1 , lithium bis(fluorosulfonyl)imidate (LIFSI) claim 1 , lithium bis(pentafluoroethylsulfonyl)imidate (LBETI) claim 1 , lithium tetracyanoborate (LiB(CN)) claim 1 , and lithium nitrate.12. The electrolyte of claim 1 , wherein the lithium salt is present in the electrolyte at a concentration in the range of about 0.1 M to about 3 M.13. The electrolyte of claim 1 , wherein the compound of Formula (I) is present in the electrolyte at a concentration in the range of about 0.005 M to about 0.5 M.14. The electrolyte of claim 1 , wherein the non-aqueous solvent comprises one or more of an ether claim 1 , a carbonate ester claim 1 , a nitrile claim 1 , a sulfoxide claim 1 , a sulfone claim 1 , a ...

Electrolyte Solution for Nonaqueous Electrolyte Batteries, and Nonaqueous Electrolyte Battery Using Same

Disclosed is an electrolyte solution for a nonaqueous electrolyte battery having an aluminum foil as a positive electrode current collector, which contains: a nonaqueous organic solvent; a fluorine-containing ionic salt as a solute; at least one kind selected from the group consisting of a fluorine-containing imide salt, a fluorine-containing sulfonic acid salt and a fluorine-containing phosphoric acid salt as an additive; and at least one kind selected from the group consisting of chloride ion and a chlorine-containing compound capable of forming chloride ion by charging, wherein the concentration of the component is 0.1 mass ppm to 500 mass ppm in terms of chlorine atom relative to the total amount of the components and. Even though the above additive component is contained, the electrolyte solution is able to suppress elution of aluminum from the aluminum foil as the positive electrode current collector during high-temperature charging. 1. An electrolyte solution for a nonaqueous electrolyte battery , the nonaqueous electrolyte battery comprising an aluminum foil as a positive electrode current collector , the electrolyte solution comprising the following components:(I) a nonaqueous organic solvent;(II) a fluorine-containing ionic salt as a solute;(III) an additive being at least one kind selected from the group consisting of a fluorine-containing imide salt, a fluorine-containing sulfonic acid salt and a fluorine-containing phosphoric acid salt; and(IV) at least one kind selected from the group consisting of chloride ion and a chlorine-containing compound capable of forming chloride ion by charging,wherein the concentration of the component (IV) is 0.1 mass ppm to 500 mass ppm in terms of chlorine atom relative to the total amount of the components (I) and (II).2. The electrolyte solution for the nonaqueous electrolyte battery according to claim 1 , wherein the concentration of the component (IV) is 0.2 mass ppm to 300 mass ppm in terms of chlorine atom relative ...

LITHIUM SECONDARY BATTERY INCLUDING ELECTROLYTE CONTAINING CARBORANE ANION

A lithium secondary battery includes a positive electrode, a negative electrode on which a lithium metal is deposited in a charged state, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte containing a nonaqueous solvent and a lithium salt containing a carborane anion. 1. A lithium secondary battery comprising:a positive electrode;a negative electrode on which a lithium metal is deposited in a charged state;a separator disposed between the positive electrode and the negative electrode; anda nonaqueous electrolyte containing a nonaqueous solvent and a lithium salt containing a carborane anion.2. The lithium secondary battery according to claim 1 , whereinthe carborane anion has a clustering structure.3. The lithium secondary battery according to claim 2 , whereinthe carborane anion contains at least one selected from the group consisting of hydrogen, fluorine, chlorine, and bromine.4. The lithium secondary battery according to claim 3 , wherein{'sub': 11', 'a', 'b, 'the lithium salt is represented by a formula LiCBX1X2,'}where X1 and X2 each independently represent H, F, Cl, or Br; a and b each independently are an integer of 0 or more and satisfy a+b=12.5. The lithium secondary battery according to claim 4 , wherein{'sub': 11', '12', '11', '12', '11', '6', '6', '11', '12', '11', '6', '6', '11', '12', '11', '6', '6, 'the lithium salt is at least one selected from the group consisting of LiCBH, LiCBF, LiCBHF, LiCBCl, LiCBHCl, LiCBBr, and LiCBHBr.'}6. The lithium secondary battery according to claim 1 , whereina concentration of the lithium salt in the nonaqueous electrolyte is 0.01 mol/L or more.7. The lithium secondary battery according to claim 1 , whereinthe negative electrode in a fully discharged state is composed of only a negative electrode current collector not containing a lithium metal.8. The lithium secondary battery according to claim 7 , whereinthe negative electrode current collector includes a ...

SILOXANE COPOLYMER AND SOLID POLYMER ELECTROLYTE COMPRISING SUCH SILOXANE COPOLYMERS

A silicone polyether for use in forming a solid polymer electrolyte film, the silicone polyether comprising a heterocyclic moiety. The silicone polyether comprising the heterocyclic moiety may be used to provide an electrolyte composition suitable for use in an electrochemical device. The silicone polyether comprising a heterocyclic moiety may also be used to form a solid polymer electrolyte that may be used to form a solid polymer electrolyte film, which may be suitable for use in electrochemical devices. 2. The silicone polyether of Formula (1) in claim 1 , wherein R claim 1 , R claim 1 , and Rare each hydrogen.3. The silicone polyether of Formula (1) in or claim 1 , wherein Rand Rare independently chosen from methyl claim 1 , ethyl claim 1 , propyl claim 1 , or butyl.4. The silicone polyether of Formula (1) in or claim 1 , wherein Rand Rare each methyl.5. The silicone polyether of Formula (1) in claim 1 , wherein R claim 1 , R claim 1 , and Rare each hydrogen claim 1 , and Rand Rare each methyl.6. The silicone polyether of Formula (2) in claim 1 , wherein R claim 1 , R claim 1 , and Rare each hydrogen.7. The silicone polyether of Formula (2) in or claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare independently chosen from methyl claim 1 , ethyl claim 1 , propyl or butyl.8. The silicone polyether of Formula (2) in or claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , and Rare each methyl.9. The silicone polyether of Formula (2) in claim 1 , wherein R claim 1 , R claim 1 , and Rare each hydrogen claim 1 , and R claim 1 , R claim 1 , R claim 1 , and Rare each methyl.10. The silicone polyether of any of - claim 1 , wherein X is O.13. The composition of claim 12 , wherein R claim 12 , R claim 12 , and Rin the silicone polyether of Formula (1) are each hydrogen.14. The composition of or claim 12 , wherein Rand Rin the silicone polyether of Formula (1) are independently chosen from methyl claim 12 , ethyl claim 12 , propyl or butyl.15. The composition of ...

STABILIZATION OF LI-ION BATTERY ANODES

Li-ion batteries are provided that include a cathode, an anode comprising active particles, an electrolyte ionically coupling the anode and the cathode, a separator electrically separating the anode and the cathode, and at least one hydrofluoric acid neutralizing agent incorporated into the anode or the separator. Li-ion batteries are also provided that include a cathode, an anode comprising active particles, an electrolyte ionically coupling the anode and the cathode, and a separator electrically separating the anode and the cathode, where the electrolyte may be formed from a mixture of an imide salt and at least one salt selected from the group consisting of LiPF, LiBF, and LiClO. Li-ion battery anodes are also provided that include an active material core and a protective coating at least partially encasing the active material core, where the protective coating comprises a material that is resistant to hydrofluoric acid permeation. 1a cathode;an anode comprising active particles;an electrolyte ionically coupling the anode and the cathode;a separator electrically separating the anode and the cathode; andat least one hydrofluoric acid neutralizing agent incorporated into the anode or the separator.. A Li-ion battery, comprising: The present Application for Patent claims priority to Provisional Application No. 61/440,104 entitled “Stabilization of Silicon Anode-Containing Li Ion Batteries” filed on Feb. 7, 2011, which is expressly incorporated by reference herein.The present Application for Patent is a continuation of patent application Ser. No. 15/728,458 entitled “STABILIZATION OF LI-ION BATTERY ANODES” filed Oct. 9, 2017, which is a divisional of patent application Ser. No. 13/366,594 entitled “STABILIZATION OF LI-ION BATTERY ANODES” filed Feb. 6, 2012, each of which is expressly incorporated by reference herein.The present disclosure relates generally to energy storage devices, and more particularly to lithium-ion battery technology.Owing in part to their ...

FLUORINATED GEL POLYMER ELECTROLYTE FOR A LITHIUM ELECTROCHEMICAL CELL

A gel polymer electrolyte for a lithium electrochemical cell, comprising: a) a three-dimensional cross-linked polymer network within a liquid electrolyte obtained by forming a reaction product of at least one fluorinated copolymer with at least one isocyanate compound comprising at least two isocyanate functional groups, and b) a liquid electrolyte solution included in the polymer network a), wherein the fluorinated copolymer comprises: i) at least one first recurring unit derived from at least one ethylenically unsaturated fluorinated monomer; and ii) at least one second recurring unit derived from at least one ethylenically unsaturated monomer having a hydroxyl group. A process for the manufacture of the gel polymer electrolyte for a lithium electrochemical cell; a lithium electrochemical cell comprising a cathode, an anode, and the present gel polymer electrolyte; and use of the gel electrolyte polymer in a lithium electrochemical cell as a separator and an electrolyte. 1. A gel polymer electrolyte for a lithium electrochemical cell comprising:a) a three-dimensional cross-linked polymer network within a liquid electrolyte obtained by forming a reaction product of at least one fluorinated copolymer with at least one isocyanate compound comprising at least two isocyanate functional groups, and b) a liquid electrolyte solution included in the polymer network a),wherein the fluorinated copolymer comprisesi) at least one first recurring unit derived from at least one ethylenically unsaturated fluorinated monomer; andii) at least one second recurring unit derived from at least one ethylenically unsaturated monomer having a hydroxyl group.2. The gel polymer electrolyte according to claim 1 , wherein the polymer network a) comprises at least one urethane moiety bridging at least two fluorinated copolymers.3. The gel polymer electrolyte according to claim 1 , wherein the first recurring unit i) is derived from vinylidene fluoride (VDF) claim 1 , chlorotrifluoroethylene ( ...

NON-AQUEOUS ELECTROLYTE FOR A LITHIUM ION BATTERY AND A LITHIUM ION BATTERY

Provided is a non-aqueous electrolyte for a lithium ion battery, comprising one or more compounds A represented by structure 1, wherein Ris independently selected from a halogen atom or a group containing 1-5 carbon atoms, and Ris independently selected from a group containing 0-5 carbon atoms; Xis independently selected from a phosphorus oxygen group or a phosphorus atom; Xis independently selected from an oxygen atom, a carboxylate group, a sulfonate group or a carbonate group. The non-aqueous electrolyte can improve the high-temperature cycle performance of the battery and reduce the impedance. The lithium ion battery prepared with the non-aqueous electrolyte possesses good high-temperature resistant properties and good cycle performance, which can effectively avoid the instability of the lithium ion battery under high temperature conditions and improve the high and low temperature cycle performance of the lithium ion battery. 2. The non-aqueous electrolyte for a lithium ion battery of claim 1 , wherein R claim 1 , the group containing 1-5 carbon atoms is selected from a hydrocarbyl group claim 1 , a halogenated hydrocarbyl group claim 1 , an oxygen-containing hydrocarbyl group claim 1 , a silicon-containing hydrocarbyl group or a cyano-substituted hydrocarbyl group; and R claim 1 , the group containing 0-5 carbon atoms is selected from a hydrocarbyl group.3. The non-aqueous electrolyte for a lithium ion battery of claim 2 , wherein Ris independently selected from a fluorine atom claim 2 , a methyl group claim 2 , an alkylene group claim 2 , an alkyne group claim 2 , a phenyl group claim 2 , a trimethylsiloxy group claim 2 , a cyano group or a tricyanomethyl group.5. The non-aqueous electrolyte for a lithium ion battery of claim 1 , wherein the content of the compound A is 0.1%-5% based on the total mass of the non-aqueous electrolyte for a lithium ion battery being 100%.6. The non-aqueous electrolyte for a lithium ion battery of claim 5 , further comprising one ...

Electrolyte for Lithium Secondary Battery and Lithium Secondary Battery Including the Same

Provided is an electrolyte for a secondary battery including a lithium salt, a nonaqueous organic solvent, and a cyclic phosphate compound, and a lithium secondary battery including the electrolyte.

LITHIUM-ION SECONDARY BATTERY

A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The positive electrode includes a positive electrode active material. The electrolytic solution includes a cyclic sulfuric acid ester compound, a cyclic ether compound, and a chain alkyl dinitrile compound. A ratio of a weight (mg) of the cyclic sulfuric acid ester compound to a weight (g) of the positive electrode active material is from 0.01 to 2. 2. The lithium-ion secondary battery according to claim 1 , wherein a ratio of a weight in milligrams of the cyclic ether compound to the weight in milligrams of the cyclic sulfuric acid ester compound is from 0.2 to 5.3. The lithium-ion secondary battery according to claim 1 , wherein a content of the chain alkyl dinitrile compound in the electrolytic solution is from 0.1 weight percent to 5 weight percent.4. The lithium-ion secondary battery according to claim 2 , wherein a content of the chain alkyl dinitrile compound in the electrolytic solution is from 0.1 weight percent to 5 weight percent.5. The lithium-ion secondary battery according to claim 1 , whereinn1 in Formula (1) is 2 or less,each of n2 and n3 in Formula (2) is 2 or less, andn4 in Formula (3) is 7 or less.6. The lithium-ion secondary battery according to claim 2 , whereinn1 in Formula (1) is 2 or less,each of n2 and n3 in Formula (2) is 2 or less, andn4 in Formula (3) is 7 or less.7. The lithium-ion secondary battery according to claim 3 , whereinn1 in Formula (1) is 2 or less,each of n2 and n3 in Formula (2) is 2 or less, andn4 in Formula (3) is 7 or less.8. The lithium-ion secondary battery according to claim 1 , wherein the positive electrode active material includesa center part that includes a lithium composite oxide, anda covering part that covers at least a portion of a surface of the center part and that includes a compound having a composition different from the lithium composite oxide.9. The lithium-ion secondary battery according ...

POWER STORAGE ELEMENT

Provided is a power storage element, including: a positive electrode; a negative electrode containing a carbonaceous material as a negative-electrode active material; and a non-aqueous electrolytic solution obtained by dissolving an electrolyte in a non-aqueous solvent, wherein a crystallite size Lcof the carbonaceous material in a c-axis direction is from 1.65 nm to 241.1 nm, and wherein cations of electrolyte ions are intercalated into and deintercalated from the negative electrode, and anions thereof are intercalated into and deintercalated from the positive electrode. 1. A power storage element , comprising:a positive electrode;a negative electrode that comprises a carbonaceous material as a negative-electrode active material; anda non-aqueous electrolytic solution obtained by dissolving an electrolyte in a non-aqueous solvent,{'sub': '(002)', 'wherein a crystallite size Lcof the carbonaceous material in a c-axis direction is from 1.65 nm to 241.1 nm, and'}wherein cations of electrolyte ions are intercalated into and deintercalated from the negative electrode, and anions thereof are intercalated into and deintercalated from the positive electrode.2. The power storage element according to claim 1 ,wherein the carbonaceous material comprised in the negative electrode is an expanded carbonaceous material.3. The power storage element according to claim 1 ,wherein the cations of the electrolyte ions are at least one kind selected from the group consisting of tetraethyl ammonium (TEA) ions, tetrabutyl ammonium (TBA) ions, and triethylmethyl ammonium (TEMA) ions.4. The power storage element according to claim 1 ,wherein the cations of the electrolyte ions are pyrrolidinium ions.5. The power storage element according to claim 4 ,wherein the pyrrolidinium ions are ethylmethyl pyrrolidinium (EMP) ions.6. The power storage element according to claim 4 ,wherein the pyrrolidinium ions are spiro-type bipyrrolidinium ions having a two-membered ring.8. The power storage element ...

ELECTROLYTE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME

An electrolyte for a rechargeable lithium battery includes a lithium salt, an organic solvent, and an additive. The organic solvent includes a sulfur-containing compound represented by Chemical Formula 1 and a fluoroalkyl ether, and the additive includes a phosphazene compound represented by Chemical Formula 3. A rechargeable lithium battery including the electrolyte may have improved cycle-life characteristics and safety. 2. The electrolyte for a rechargeable lithium battery of claim 1 , wherein Rto Rare each independently a hydrogen atom or a substituted or unsubstituted C1 to C30 alkyl group.3. The electrolyte for a rechargeable lithium battery of claim 1 , wherein the sulfur-containing compound is present in an amount of about 1% by volume to about 20% by volume based on the total amount of the organic solvent.5. The electrolyte for a rechargeable lithium battery of claim 4 , wherein Rand Rare each independently a C1 to C6 alkyl group substituted with 5 to 12 fluorine atoms.6. The electrolyte for a rechargeable lithium battery of claim 4 , wherein the C1 to C10 alkyl group is a linear C1 to C10 alkyl group.7. The electrolyte for a rechargeable lithium battery of claim 1 , wherein the fluoroalkyl ether is present in an amount of about 1% by volume to about 40% by volume based on the total amount of the organic solvent.8. The electrolyte for a rechargeable lithium battery of claim 1 , wherein at least one of Xto Xis a halogen.9. The electrolyte for a rechargeable lithium battery of claim 1 , wherein Xto Xare each independently a halogen.10. The electrolyte for a rechargeable lithium battery of claim 1 , wherein Xto Xare each independently a fluorine atom.11. The electrolyte for a rechargeable lithium battery of claim 1 , wherein Z is NRR claim 1 , and Rand Rare each independently a substituted or unsubstituted C1 to C30 alkyl group or a substituted or unsubstituted C1 to C30 cycloalkyl group.12. The electrolyte for a rechargeable lithium battery of claim 1 , ...

Non-aqueous electrolyte and lithium secondary battery comprising same

Disclosed are: a non-aqueous electrolyte for a lithium secondary battery containing 1-20 parts by weight of a cyano group-containing pyrimidine-based compound on the basis of 100 parts by weight of an organic solvent; and a lithium secondary battery comprising the same.

Lithium Secondary Battery

The present invention may improve the lifetime characteristics of a lithium secondary battery, and particularly, may provide a non-aqueous electrolyte solution or cathode including a phosphate-based compound which may exhibit stable and excellent lifetime characteristics at high temperature and high voltage regardless of the moisture content or the presence of a pressing process of the electrode. 2. The cathode of claim 1 , wherein claim 1 , in a case where n is 3 or 4 in A of Chemical Formula 1 claim 1 , A is formed by connecting phosphor (P) of one repeating unit and oxygen (O) of another adjacent repeating unit to each other to form a linear chain claim 1 , a cyclic chain claim 1 , or both linear and cyclic chains.5. The cathode of claim 4 , wherein the compound represented by Chemical Formula 2 is tris(trimethylsilyl)phosphate (TMSPa).6. The cathode of claim 4 , wherein a mixing ratio of the compound represented by Chemical Formula 1 to the compound represented by Chemical Formula 2 is in a range of 1:0.1 to 1:2 as a weight ratio.7. The cathode of claim 1 , wherein the compound represented by Chemical Formula 1 is included in an amount of 0.01 wt % to 5 wt % based on a total weight of the lithium transition metal oxide.8. The cathode of claim 1 , wherein the lithium transition metal oxide is a compound represented by Chemical Formula 3:{'br': None, 'sub': x', 'a', 'b', 'c', '2, 'i': x+', ''}9. A lithium secondary battery comprising the cathode of .10. The lithium secondary battery of claim 9 , wherein a charge voltage of the lithium secondary battery is in a range of 4.3 V to 5.0 V. The present application is a divisional of U.S. patent application Ser. No. 14/442,023, filed on May 11, 2015, which is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/KR2014/010137, filed Oct. 27, 2014, which claims priority from Korean Patent ...

FLAME-RESISTANT ELECTROLYTE FOR SECONDARY CELL, AND SECONDARY CELL INCLUDING SAID ELECTROLYTE

To provide an electrolyte solution for a secondary battery which is a highly safe electrolyte solution system using a flame-retardant solvent as a main solvent and can provide excellent battery characteristics. 1. An electrolyte solution for a secondary battery comprising a flame-retardant organic solvent as a main solvent and an alkali metal salt , wherein the composition of the electrolyte solution is such that the solvent amount is 4 mol or less per 1 mol of the alkali metal salt.2. The electrolyte solution for a secondary battery according to claim 1 , wherein the flame-retardant organic solvent is a phosphate triester.3. The electrolyte solution for a secondary battery according to claim 1 , wherein the flame-retardant organic solvent is trimethyl phosphate or triethyl phosphate.4. The electrolyte solution for a secondary battery according to claim 1 , wherein an anion constituting the alkali metal salt is an anion containing one or more groups selected from the group consisting of a fluorosulfonyl group claim 1 , a trifluoromethanesulfonyl group claim 1 , and a perfluoroethanesulfonyl group.5. The electrolyte solution for a secondary battery according to claim 4 , wherein the anion is bis(fluorosulfonyl)amide ([N(FSO)]—) claim 4 , (fluorosulfonyl) (trifluorosulfonyl)amide ([N(CFSo) (FSO)]—) claim 4 , bis(trifluoromethanesulfonyl)amide ([N(CFSo)]—) claim 4 , bis(perfluoroethanesulfonyl)amide ([N(CFSO)]—) claim 4 , or (perfluoroethanesulfonyl) (trifluoroethane methanesulfonyl)amide ([N(CFSO) (CFSO)]—).6. The electrolyte solution for a secondary battery according to any one of to claim 4 , wherein the alkali metal salt is a lithium salt or a sodium salt.7. The electrolyte solution for a secondary battery according to any one of to claim 4 , wherein the ratio of the flame-retardant organic solvent in the total solvent is 30 to 100 mol %.8. The electrolyte solution for a secondary battery according to any one of to claim 4 , wherein the secondary battery is a ...

Iron ion trapping van der waals gripper additives for electrolyte systems in lithium-ion batteries

Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing deposition of transition metal ions at negative electrodes are provided. The electrochemical cells include a positive electrode, a negative electrode, a separator disposed therebetween, and an electrolyte system including one or more lithium salts, one or more solvents, and at least one additive complexing compound. The at least one additive complexing compound includes an alkyl group having greater than or equal to 4 carbon atoms and less than or equal to 22 carbon atoms and a transition metal ion trapping group. The at least one additive compound associates with a surface of the separator via van der Waal's interactive forces and is further capable of complexing with transition metal ion within the electrochemical cell to sequester or tether the ions generated by contaminants to minimize or suppress the deposition of transition metal cations on the negative electrode.

POLYMERIC ION TRAPS FOR SUPPRESSING OR MINIMIZING TRANSITION METAL IONS AND DENDRITE FORMATION OR GROWTH IN LITHIUM-ION BATTERIES

Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing dendrite formation are provided. The electrochemical cells include a positive electrode, a negative electrode, and a separator disposed therebetween. At least one transition metal ion-trapping moiety, including one or more polymers functionalized with one or more trapping groups, may be included within the electrochemical cell as a coating, pore filler, substitute pendant group, or binder. The one or more trapping groups may be selected from the group consisting of: crown ethers, siderophores, bactins, ortho-phenanthroline, iminodiacetic acid dilithium salt, oxalates malonates, fumarates, succinates, itaconates, phosphonates, and combinations thereof, and may bind to metal ions found within the electrochemical cell to minimize or suppress formation of dendrite protrusions on the negative electrode. 1. An electrochemical cell that cycles lithium ions having improved capacity retention comprising:a positive electrode comprising a positive lithium-based electroactive material and one or more polymeric binder materials;a negative electrode comprising a negative electroactive material;a microporous polymeric separator disposed therebetween; andat least one transition metal ion-trapping moiety comprising one or more polymers functionalized with one or more trapping groups selected from the group consisting of: ortho-phenanthroline, malonates, fumarates, succinates, and combinations thereof, wherein the one or more trapping groups bind to at least one transition metal ion within the electrochemical cell to minimize or suppress formation of dendrite protrusions on the negative electrode.2. The electrochemical cell of claim 1 , wherein the at least one transition metal ion-trapping moiety is included in one or more of the following:a) coated on a surface of the positive electrode;b) coated on a surface of the negative electrode;c) coated on a surface of the separator;d) disposed in pores ...

ELECTROLYTE SYSTEM SUPPRESSING OR MINIMIZING METAL CONTAMINANTS AND DENDRITE FORMATION IN LITHIUM ION BATTERIES

Electrochemical cells that cycle lithium ions and methods for suppressing or minimizing dendrite formation are provided. The electrochemical cells include a positive electrode, a negative electrode, and a separator sandwiched therebetween. The positive and negative electrodes and separator may each include an electrolyte system comprising one or more lithium salts, one or more solvents, and one or more complexing agents. The one or more complexing agents binds to metal contaminants found within the electrochemical cell to form metal ion complex compounds that minimize or suppress formation of dendrite protrusions on the negative electrode at least by increasing the horizontal area (e.g., decreasing the height) of any dendrite formation. 1. An electrochemical cell that cycles lithium ions having improved capacity retention comprising:a positive electrode comprising a positive lithium-based electroactive material;a separator;a negative electrode comprising a negative electroactive material; and{'sub': 12', '8', '2', '3', '6', '5', '7', '6', '8', '7', '2', '2', '4', '10', '8', '2', '4', '8', '2', '2', '44', '30', '4', '7', '5', '4', '32', '18', '8, 'sup': '−', 'an electrolyte system comprising one or more lithium salts, one or more solvents, and one or more complexing agents that bind to metal contaminants within the electrochemical cell to form metal ion complex compounds, wherein the one or more complexing agents are selected from the group consisting of: 1,10-phenanthroline (CHN), trilithium citrate (LiCHO), citric acid (CHO), dilithium oxalate (LiCO), cyanide (CN), trilithium ethylenediaminetriacetate, 2,2′-bipyridine (CHN), dimethylglyoxime (CHNO), porphyrin, meso-tetraphenylporphyrin (CHN), lithium (Li) salts of quinolinic acid (CHNO), phthalocyanine (CHN), tetrazaporphyrin, tetrabenzoporphyrin, and combinations thereof, and the metal ion complex compounds minimize or suppress formation of dendrite protrusions on the negative electrode.'}2. The electrochemical ...

PHOSPHORUS-CARBON COMPOSITES AS BATTERY ANODE MATERIALS

An electrochemical device includes an anode containing a phosphorus-carbon composite including a conductive carbon matrix and nano-sized phosphorus particles, wherein the nano-sized phosphorus particles are uniformly dispersed on the surface and/or pores of the carbon matrix. 1. A method of preparing an electrochemical device , the method comprisingball-milling a mixture to obtain a phosphorus-carbon composite, the mixture comprising;a first precursor and a second precursor for a conductive carbon matrix, and phosphorus, wherein the phosphorus comprises black phosphorus,preparing an anode with the phosphorus-carbon composite; andassembling the electrochemical device with the anode; the first precursor comprises one or more of graphite, graphene, expanded graphite, reduced graphene oxide, acetylene black, carbon black, a metal-organic framework, porous carbon, carbon spheres, or carbon aerogel;', 'the second precursor comprises one or more of single-walled carbon nanotubes, multi-walled carbon nanotubes, carbon nanofibers, carbon nanotube arrays, polypyrrole, or polyaniline;', 'the phosphorus-carbon composite comprises nano-sized phosphorus particles uniformly dispersed on the surface and/or pores of the carbon matrix;', 'the nano-sized phosphorus particles comprise black phosphorus; and', 'the ball-milling is performed at a rotation speed of about 700 to about 1500 rpm., 'wherein'}2. The method of claim 1 , wherein the phosphorus of the mixture further comprises red phosphorus claim 1 , and the nano-sized phosphorus particles further comprise red phosphorus.3. The method of claim 1 , wherein the ball-milling step is performed at a weight ratio of balls to the mixture of 10:1.4. The method of claim 1 , wherein the ball-milling step is performed for a time period of about 1 to about 40 hours.5. The method of claim 1 , wherein the nano-sized phosphorus particles have a particle size of about 1 nm to about 200 nm.6. The method of claim 1 , wherein the phosphorus-carbon ...

BATTERY

A battery includes a positive electrode including a positive electrode active material, a negative electrode, and an electrolytic solution including a lithium hexafluorophosphate and an additive. The positive electrode active material includes a compound having a crystal structure belonging to a space group FM3-M and represented by Compositional Formula (1): LiMeOF. The additive is at least one selected from the group consisting of difluorophosphates, tetrafluoroborates, bis(oxalate)borate salts, bis(trifluoromethanesulfonyl)imide salts, and bis(fluorosulfonyl)imide salts. 1. A battery comprising:a positive electrode including a positive electrode active material;a negative electrode; andan electrolytic solution including a lithium hexafluorophosphate and an additive, wherein {'br': None, 'sub': x', 'y', 'α', 'β, 'LiMeOF\u2003\u2003(1)'}, 'the positive electrode active material includes a compound having a crystal structure belonging to a space group FM3-M and represented by Compositional Formula (1)where Me is one or more elements selected from the group consisting of Mn, Co, Ni, Fe, Al, B, Ce, Si, Zr, Nb, Pr, Ti, W, Ge, Mo, Sn, Bi, Cu, Mg, Ca, Ba, Sr, Y, Zn, Ga, Er, La, Sm, Yb, V, and Cr; and [{'br': None, '1.7≤x≤2.2,'}, {'br': None, '0.8≤y≤1.3,'}, {'br': None, '1≤α≤2.5, and'}, {'br': None, '0.5≤β≤2, and'}], 'subscripts x, y, α, and β satisfy the following requirementsthe additive is at least one selected from the group consisting of difluorophosphates, tetrafluoroborates, bis(oxalate)borate salts, bis(trifluoromethanesulfonyl)imide salts, and bis(fluorosulfonyl)imide salts.2. The battery according to claim 1 , wherein {'br': None, 'α+β=3.'}, 'the compound satisfies3. The battery according to claim 1 , whereinthe electrolytic solution includes 0.05 mol/L or more and 0.5 mol/L or less of the additive.4. The battery according to claim 2 , whereinthe electrolytic solution includes 0.05 mol/L or more and 0.2 mol/L or less of the additive.5. The battery according to ...

Electrolyte solution for a lithium ion cell

An electrolyte solution for a lithium-ion cell includes at least one organic carbonate solvent, at least one lithium salt including a non-coordinating anion and at least one polyfluorinated alkoxy olefin according to the general formula I, the general formula II, or the general formula III: I: R a R b C═CH—O—R, II: R a R b C═CH—O—CHR a ′R b ′, III: R a R b C═CH—O—R c —O—CH═CR a ′R b ′, wherein R a and R a ′ are each independently a fluorinated alkyl group having 1 or 2 carbon atoms, R b and R b ′ are each independently F, Cl, Br or H, and R is C n H x F y , wherein n is an integer from 1 to 6, x and y are each independently integers from 0 to 13, and x+y=2n+1 or x+y=2n−1, and R c is C k H (2k+1) , wherein k is an integer from 2 to 4.

LITHIUM OXYHALIDE ELECTROCHEMICAL CELL DESIGN FOR HIGH-RATE DISCHARGE

A novel wound electrode assembly for a lithium oxyhalide electrochemical cell is described. The electrode assembly comprises an elongate cathode of an electrochemically non-active but electrically conductive carbonaceous material disposed between an inner elongate portion and an outer elongate portion of a unitary lithium anode. That way, lithium faces the entire length of the opposed major sides of the cathode. This inner anode portion/cathode/outer anode portion configuration is rolled into a wound-shaped electrode assembly that is housed inside a cylindrically-shaped casing. A cylindrically-shaped sheet-type spring centered in the electrode assembly presses outwardly to limit axial movement of the electrode assembly. In one embodiment, all the non-active components, except for the cathode current collector which is nickel, are made of stainless-steel. This provides the cell with a low magnetic signature without adversely affecting the cell's high-rate capability. 1. An electrochemical cell , comprising:a) a casing; and i) a U-shaped anode having an anode inner portion extending to an anode inner portion distal end and an anode outer portion extending to an anode outer portion distal end, wherein the anode inner and outer portions are connected by an anode connecting portion spaced from the anode inner and outer portion distal ends;', 'ii) a cathode having opposed cathode first and second major sides extending from a cathode proximal end to a cathode distal end;', 'iii) a separator disposed intermediate the anode and the cathode to prevent direct physical contact between them; and', 'iv) a catholyte in electrochemical association with the anode and the cathode,', 'v) wherein the cathode resides inside the U-shaped anode so that the anode inner portion directly faces the cathode first side and the anode outer portion directly faces the cathode second side with the anode connecting portion facing the cathode proximal end, and', 'vi) wherein, with the anode, the ...

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

This non-aqueous electrolyte secondary battery is provided with a positive electrode, a negative electrode and a non-aqueous electrolyte. The non-aqueous electrolyte contains: a non-aqueous solvent that contains a fluorine-containing cyclic carbonate; a cyclic carboxylic acid anhydride such as diglycolic acid anhydride; and an imide lithium salt having a sulfonyl group such as lithium bis(fluorosulfonyl)imide. 2. The non-aqueous electrolyte secondary battery according to claim 1 , wherein the cyclic carboxylic anhydride contains at least one of diglycolic anhydride claim 1 , methyldiglycolic anhydride claim 1 , dimethyldiglycolic anhydride claim 1 , ethyldiglycolic anhydride claim 1 , vinyldiglycolic anhydride claim 1 , allyldiglycolic anhydride claim 1 , and divinyldiglycolic anhydride.3. The non-aqueous electrolyte secondary battery according to claim 1 , wherein the imide lithium salt having sulfonyl groups contains at least one of lithium bis(fluorosulfonyl)imide claim 1 , lithium bis(trifluoromethanesulfonyl)imide claim 1 , lithium bis(pentafluoroethanesulfonyl)imide claim 1 , and lithium bis(nonafluorobutanesulfonyl)imide.4. The non-aqueous electrolyte secondary battery according to claim 1 , wherein the content of the fluorine-containing cyclic carbonate in the non-aqueous solvent is 5 vol % or more and 50 vol % or less.5. The non-aqueous electrolyte secondary battery according to claim 1 , wherein the content of the cyclic carboxylic anhydride in the non-aqueous electrolyte is 0.1 mass % or more and 1.5 mass % or less claim 1 , and the content of the imide lithium salt having sulfonyl groups in the non-aqueous electrolyte is 0.1 mass % or more and 1.5 mass % or less. The present invention relates to a technique concerning a non-aqueous electrolyte secondary battery.In recent years, a non-aqueous electrolyte secondary battery which includes a positive electrode, a negative electrode, and a non-aqueous electrolyte, and achieves charge and discharge by moving ...

Production of a hexafluorophosphate salt and of phosphorous pentafluoride

A process for producing a hexafluorophosphate salt comprises neutralizing hexafluorophosphoric acid with an organic Lewis base, to obtain an organic hexafluorophosphate salt. The organic hexafluorophosphate salt is reacted with an alkali hydroxide selected from an alkali metal hydroxide (other than LiOH) and an alkaline earth metal hydroxide, in a non-aqueous suspension medium, to obtain an alkali hexafluorophosphate salt as a precipitate. A liquid phase comprising the non-aqueous suspension medium, any unreacted organic Lewis base and any water that has formed during the reaction to form the precipitate, is removed. Thereby, the alkali hexafluorophosphate salt is recovered.

USE OF LITHIUM SALT MIXTURES AS LI-ION BATTERY ELECTROLYTES

Lithium salt mixtures, for example a mixture including at least two lithium salts chosen from two of the three following groups of salts: X: LiPF, LiBF, CHCOOLi, CHSOLi, CFSOLi, CFCOOLi, LiBF, LiBCOR—SO—NLi—SO—R, where Rand Rindependently represent F, CF, CHF, CHF, CHF, CHF, CHF, CF, CF, CHF, CHF, CF, CHF, CHF, CF, CFOCF, CFOCF, CHFOCFor CFOCF; or Formula (I), where Rf represents F, CF, CHF, CHF, CHF, CHF, CHF, CF, CF, CHF, CHF, CF, CHF, CHF, CF, CFOCF, CFOCF, CHFOCFor CFOCF. Also, said salt mixtures dissolved in solvents, suitable for being used as electrolytes for Li-ion batteries. 2. The mixture as claimed in claim 1 , comprising at least one lithium salt of formula (I) where Rf represents F claim 1 , CF claim 1 , CHF claim 1 , CHF claim 1 , CHF claim 1 , CHF claim 1 , CHF claim 1 , CF claim 1 , CF claim 1 , CHF claim 1 , CHF claim 1 , CF claim 1 , CHF claim 1 , CHF claim 1 , CF claim 1 , CFOCF claim 1 , CFOCF claim 1 , CHFOCFor CFOCFand at least one lithium salt chosen from the X group or the R—SO—NLi—SO—Rgroup where Rand Rindependently represent F claim 1 , CF claim 1 , CHF claim 1 , CHF claim 1 , CHF claim 1 , CHF claim 1 , CHF claim 1 , CF claim 1 , CF claim 1 , CHF claim 1 , CHF claim 1 , CF claim 1 , CHF claim 1 , CHF claim 1 , CF claim 1 , CFOCF claim 1 , CFOCF claim 1 , CHFOCFor CFOCF.3. The mixture as claimed in claim 2 , comprising at least one lithium salt of formula (I) where Rf represents F claim 2 , CF claim 2 , CHF claim 2 , CHF claim 2 , CHF claim 2 , CHF claim 2 , CHF claim 2 , CF claim 2 , CF claim 2 , CHF claim 2 , CHF claim 2 , CF claim 2 , CHF claim 2 , CHF claim 2 , CF claim 2 , CFOCF claim 2 , CFOCF claim 2 , CHFOCFor CFOCFand at least one lithium salt chosen from the X group.4. The mixture as claimed in claim 2 , comprising at least one lithium salt of formula (I) where Rf represents F claim 2 , CF claim 2 , CHF claim 2 , CHF claim 2 , CHF claim 2 , CHF claim 2 , CHF claim 2 , CF claim 2 , CF claim 2 , CHF claim 2 , CHF claim 2 , CF claim ...

Cell

A cell in which thermal welding of a laminate packaging is performed so that the thickness of a thermal welded portion including an electrode terminal is larger than that of a thermal welded portion including no electrode terminal.

NONAQUEOUS ELECTROLYTE SECONDARY BATTERY

The present invention has a main object to improve the thermal stability of a nonaqueous electrolyte secondary battery. A nonaqueous electrolyte secondary battery according to an aspect of the present invention includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode contains a positive electrode active material and a metal fluoride. The positive electrode active material contains particles of a lithium transition metal oxide. At least one portion of the surface of each of the lithium transition metal oxide particles has a rare-earth compound attached thereto. The nonaqueous electrolyte contains a fluorine-containing lithium salt. The rare-earth compound is preferably a hydroxide, an oxyhydroxide, or an oxide.

Electrolytes comprising metal amide and metal chlorides for multivalent battery

An electrolyte includes compounds of formula M 1 X n and M 2 Z m ; and a solvent wherein M 1 is Mg, Ca, Sr, Ba, Sc, Ti, Al, or Zn; M 2 is Mg, Ca, Sr, Ba, Sc, Ti, Al, or Zn; X is a group forming a covalent bond with M 1 ; Z is a halogen or pseudo-halogen; n is 1, 2, 3, 4, 5, or 6; and m is 1, 2, 3, 4, 5, or 6.

ELECTROLYTE SOLUTION AND SULFUR-BASED OR SELENIUM-BASED BATTERIES INCLUDING THE ELECTROLYTE SOLUTION

An example of an electrolyte solution includes a solvent, a lithium salt, a fluorinated ether, and an additive. The additive is selected from the group consisting of RSR′, wherein x ranges from 3 to 18, and R—(SSe)—R, wherein 2 Подробнее

ELECTRODE, STORAGE BATTERY, POWER STORAGE DEVICE, AND ELECTRONIC DEVICE

A power storage device with high capacity is provided. A power storage device with high energy density is provided. A highly reliable power storage device is provided. A long-life power storage device is provided. An electrode with high capacity is provided. An electrode with high energy density is provided. A highly reliable electrode is provided. Such a power storage device includes a first electrode and a second electrode. The first electrode includes a first current collector and a first active material layer. The first active material layer includes active material particles, spaces provided on the periphery of the active material particles, graphene, and a binder. The active material particles are silicon. The active material particles and the spaces are surrounded by the graphene and the binder. 1. A power storage device comprising:a negative electrode; anda positive electrode,wherein the negative electrode includes a current collector and an active material layer,wherein the active material layer includes active material particles and a graphene compound and a binder that cover the active material particles, andwherein a space is present between the active material particle, and the graphene compound and the binder.2. The power storage device according to claim 1 ,wherein the graphene compound includes 2 or more and 100 or less reduced graphene oxide layers, andwherein a distance between the reduced graphene oxide layers is greater than or equal to 0.335 nm and less than or equal to 0.7 nm.3. The power storage device according to claim 1 ,wherein the active material particles comprise silicon.4. The power storage device according to claim 1 ,wherein the binder comprises polyimide.5. The power storage device according to claim 1 ,wherein an average diameter of the active material particles is greater than or equal to 0.5 μm and less than or equal to 1.5 μm.6. The power storage device according to claim 1 ,wherein the active material particles are formed by ...