Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 110052. Отображено 100.
05-01-2012 дата публикации

Protected metal anode architecture and method of forming the same

Номер: US20120003532A1
Автор: Lezhi Huang, Lin He, Meifen Wu, Michael Edward Badding, Yu Liu, Zhaoyin Wen
Принадлежит: Corning Inc

The invention provides a protected metal anode architecture comprising: a metal anode layer; and an organic protection film formed over and optionally in direct contact with the metal anode layer, wherein the metal anode layer comprises a metal selected from the group consisting of an alkaline metal and an alkaline earth metal, and the organic protection film comprises a reaction product of the metal and an electron donor compound. The invention further provides a method of forming a protected metal anode architecture.

Подробнее
Номер записи: 1
05-01-2012 дата публикации

Acid-lead battery electrode comprising a network of pores passing therethrough, and production method

Номер: US20120003543A1
Автор: Angel Zhivkov Kirchev, Nina Kircheva
Принадлежит: Commissariat a lEnergie Atomique et aux Energies Alternatives CEA

A structure including a network of parallel, homogeneous pores extending through the structure, and an outer frame around the lateral faces of the structure. The structure and the frame are made of carbon. The electrode is covered by a layer based on lead. The pores are filled with an active material based on lead.

Подробнее
Номер записи: 2
17-01-2017 дата публикации

Планарная батарея источников тока

Номер: RU0000168023U1
Автор: Аркадий Владимирович Иванчик, Дмитрий Юрьевич Анисимов
Принадлежит: Аркадий Владимирович Иванчик

Полезная модель относится к области электротехники и может быть использована при производстве химических источников тока с биполярными электродами.Поставленная задача решается тем, что планарная батарея источников тока, содержащая биполярные электроды, электролит, сепараторы, крайние монополярные электроды, токосъемы, сепараторы, выполненные, по крайней мере, в виде двух полотен, установленных с наложением друг на друга, внутренняя поверхность одного из полотен содержит последовательно чередующиеся слои токопроводящего клея, активного вещества анода, диэлектрического клея и активного вещества катода; внутренняя поверхность другого полотна содержит последовательно чередующиеся слои диэлектрического клея, активного вещества катода, токопроводящего клея и активного вещества анода, согласно заявляемому техническому решению дополнительно содержит герметичное основание, на котором закреплены с помощью диэлектрического клея края полотен с последующим чередующимся наложением этих полотен и закреплением на верхней поверхности батареи полотен с помощью диэлектрического клея и герметичного покрытия. При этом чередующиеся полотна расположены на герметичном основании до достижения количества слоев, соответствующего расчетной емкости батареи.Технический результат заключается в снижении себестоимости и упрощении процесса производства за счет применения освоенной технологии изготовления планарных элементов с использованием сверхтонких сепараторов и электродов. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 168 023 U1 (51) МПК H01M 10/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2016110729, 23.03.2016 (24) Дата начала отсчета срока действия патента: 23.03.2016 (72) Автор(ы): Анисимов Дмитрий Юрьевич (RU), Иванчик Аркадий Владимирович (RU) 17.01.2017 Приоритет(ы): (22) Дата подачи заявки: 23.03.2016 Адрес для переписки: 197198, Санкт-Петербург, ул. Ижорская, 13/39, кв. 67, Иванчик А.В. 1 6 8 0 2 ...

Подробнее
Номер записи: 3
22-03-2017 дата публикации

Литий-ионный аккумулятор

Номер: RU0000169539U1
Автор: Александр Сергеевич Логинов, Михаил Дмитриевич Рябышев
Принадлежит: Александр Сергеевич Логинов

Предлагаемое техническое решение относится к области электротехники и может быть использовано для производства литий-ионных аккумуляторов, обеспечивающих более высокие значения удельной энергоемкости и расширение арсенала технических средств.Литий-ионный аккумулятор содержит металлический корпус, положительный электрод, выполненный в виде подложки, с нанесенным на ее поверхность активным слоем, и расположенный внутри металлического корпуса, отрицательный электрод, выполненный в виде подложки, с нанесенным на ее поверхность активным слоем, и расположенный внутри металлического корпуса, сепаратор, пропитанный неводным электролитом и размещенный между активными слоями положительного и отрицательного электродов, электролит, расположенный во внутренней полости металлического корпуса и загерметизированный уплотнительной электроизоляционной крышкой, закрепленной на металлическом корпусе, положительный и отрицательный контакты, подсоединенные одними своими выводами к соответствующим участкам внешней поверхности положительного и отрицательного электродов, при этом их подложки выполнены с толщиной 5-100 мкм и поверхностной плотностью 5-100г/м. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 169 539 U1 (51) МПК H01M 10/052 (2010.01) H01M 10/058 (2010.01) H01M 4/13 (2010.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21)(22) Заявка: 2015105734, 30.04.2015 (24) Дата начала отсчета срока действия патента: 30.04.2015 (72) Автор(ы): Логинов Александр Сергеевич (RU), Рябышев Михаил Дмитриевич (RU) 22.03.2017 (56) Список документов, цитированных в отчете о поиске: RU 128014 U1, 10.05.2013. US Приоритет(ы): (22) Дата подачи заявки: 30.04.2015 Адрес для переписки: 630032, г. Новосибирск, а/я 138, Белоусовой Е.В. 1 6 9 5 3 9 (57) Формула полезной модели 1. Литий-ионный аккумулятор, содержащий металлический корпус, положительный электрод, выполненный в виде подложки, с нанесенным на ее поверхность активным слоем, и ...

Подробнее
Номер записи: 4
19-01-2012 дата публикации

Porous anode active material, method of preparing the same, and anode and lithium battery employing the same

Номер: US20120013051A1
Автор: Dong-Min Im, Han-su Kim, Sang-kook Mah
Принадлежит: Samsung SDI Co Ltd

Provided are a porous anode active material, a method of preparing the same, and an anode and a lithium battery employing the same. The porous anode active material includes fine particles of metallic substance capable of forming a lithium alloy; a crystalline carboneous substance; and a porous carboneous material coating and attaching to the fine particles of metallic substance and the crystalline carboneous substance, the porous anode active material having pores exhibiting a bimodal size distribution with two pore diameter peaks as measured by a Barrett-Joyner-Halenda (BJH) pore size distribution from a nitrogen adsorption. The porous anode active material has the pores having a bimodal size distribution, and thus may efficiently remove a stress occurring due to a difference of expansion between a carboneous material and a metallic active material during charging and discharging. Further, the anode electrode and the lithium battery comprising the anode active material have excellent charge/discharge characteristics.

Подробнее
Номер записи: 5
19-01-2012 дата публикации

Method for producing cathode active material layer

Номер: US20120015251A1
Автор: Hideki Oki
Принадлежит: Toyota Motor Corp

The main object of the present invention is to provide a method for producing a cathode active material layer, which allows a high-purity lithium complex oxide by restraining impurities from being produced, allows a flat film, and allows orientation control. The present invention solves the above-mentioned problems by providing a method for producing a cathode active material layer, in which a cathode active material layer is formed on a substrate and contains LiX a O b (X is a transition metal element of at least one kind selected from the group consisting of Co, Ni and Mn, a=0.7-1.3, and b=1.5-2.5), characterized in that the method comprises the steps of: forming a cathode active material precursor-film on the above-mentioned substrate by a physical vapor deposition method while setting a temperature of the substrate at 300° C. or less, and performing an annealing treatment for the cathode active material precursor-film at a temperature of a crystallizable temperature of the LiX a O b or more, and characterized in that the substrate has orientation property in a surface.

Подробнее
Номер записи: 6
26-01-2012 дата публикации

Composite electrode and electronic device including the same

Номер: US20120021280A1
Автор: Daisuke Ito, Natsuko Katase, Shinichi Uesaka
Принадлежит: Sony Corp

A composite electrode includes a plate-shaped conductor; a plurality of auxiliary electrodes disposed such that ends of the plurality of auxiliary electrodes are connected to a surface of the plate-shaped conductor and the plurality of auxiliary electrodes extend from the surface of the plate-shaped conductor; and an active material layer formed between the plurality of auxiliary electrodes so as to be in contact with the plate-shaped conductor. When the height of the plurality of auxiliary electrodes is defined as h, the center-to-center spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes or the spacing of auxiliary electrodes facing each other in the plurality of auxiliary electrodes is h or more and 2h or less.

Подробнее
Номер записи: 7
26-01-2012 дата публикации

Graphite or carbon particulates for the lithium ion battery anode

Номер: US20120021294A1
Автор: Aruna Zhamu, Bor Z. Jang, Guorong Chen, Jinjun Shi, Ming C. Wang, Qing Fang
Принадлежит: Aruna Zhamu, Guorong Chen, Jang Bor Z, Jinjun Shi, Qing Fang, Wang Ming C

This invention provides a graphite or graphite-carbon particulate for use as a lithium secondary battery anode material having a high-rate capability. The particulate is formed of a core carbon or graphite particle and a plurality of satellite carbon or graphite particles that are each separately bonded to the core particle wherein the core particle is spherical in shape, slightly elongate in shape with a major axis-to-minor axis ratio less than 2, or fibril in shape, and wherein the satellite particles are disc-, platelet-, or flake-like particles each containing a graphite crystallite with a crystallographic c-axis dimension Lc and a lateral dimension. Preferably, Lc is less than 100 nm and the flake/platelet lateral dimension is less than 1 μm. The core particle may be selected from natural graphite, artificial graphite, spherical graphite, graphitic coke, meso-carbon micro-bead, soft carbon, hard carbon, graphitic fibril, carbon nano-fiber, carbon fiber, or graphite fiber. Preferably, the flat-shaped particles are randomly oriented with respect to one another.

Подробнее
Номер записи: 8
02-02-2012 дата публикации

Battery Packs for Vehicles and High Capacity Pouch Secondary Batteries for Incorporation into Compact Battery Packs

Номер: US20120028105A1
Автор: James P. Buckley, Sujeet Kumar
Принадлежит: Individual

High performance battery packs are described especially for use in electric vehicles and plug-in hybrid electric vehicles. Based on high energy lithium ion battery designs, the battery packs can have pairs of parallel connected batteries to supply an energy capacity at full discharge of at least about 40 kilowatt-hours or in alternative embodiments a set of all series connected batteries that can produce at full discharge at least about 15 kilowatt-hours. In some embodiments, lithium rich positive electrode active materials can be used to faun the batteries in which the material comprises a composition approximately represented by a formula xLi 2 M′O 3 .(1−x)LiMO 2 with x from about 0.05 to about 0.8.

Подробнее
Номер записи: 9
02-02-2012 дата публикации

Electrode composite material, method for making the same, and lithium ion battery using the same

Номер: US20120028113A1
Автор: Chang-Yin Jiang, Dan Wang, Jian Gao, Jian-Jun Li, xian-kun Huang, Xiang-Ming He
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

An anode composite material includes an anode active material particle having a surface and a continuous aluminum phosphate layer. The continuous aluminum phosphate layer is coated on the surface of the anode active material particle. The present disclosure also relates to a lithium ion battery that includes the cathode composite material.

Подробнее
Номер записи: 10
09-02-2012 дата публикации

Electroactive material, and use thereof in anodes for lithium-ion cells

Номер: US20120032109A1
Автор: Arno Lange, Hannah Maria KÖNIG, Kirill Bramnik, Phillip Hanefeld
Принадлежит: BASF SE

The present invention relates to a novel electroactive material which comprises a graphitic carbon phase C and a (semi)metal phase and/or a (semimetal) oxide phase (MO x phase) and also to the use of the electroactive material in anodes for lithium ion cells. The invention further relates to a process for producing such materials. The electroactive material comprises: a) a carbon phase C; b) at least one MO x phase, where M is a metal or semimetal, x is from 0 to <k/2, where k is the maximum valence of the metal or semimetal. In the electroactive material of the invention, the carbon phase C and the MO x phase form essentially co-continuous phase domains, with the average distance between two neighboring domains of identical phases being not more than 10 nm, in particular not more than 5 nm and especially not more than 2 nm.

Подробнее
Номер записи: 11
09-02-2012 дата публикации

Method for producing lithium iron phosphate

Номер: US20120032119A1
Автор: Minoru Sakai, Tomoyuki Tahara
Принадлежит: JFE Chemical Corp

A method for producing lithium iron phosphate includes: an aqueous solution preparing step of preparing an aqueous solution containing a phosphoric acid and a carboxylic acid; a first forming step of adding iron particles containing 0.5 mass % or more of oxygen to the aqueous solution, and making the phosphoric acid and the carboxylic acid and the iron particles react with each other in the aqueous solution under an oxidizing atmosphere, to form a first reaction liquid is formed by; the second forming step of adding a lithium source to the first reaction liquid obtained in the synthesizing step to form a second reaction liquid; the precursor forming step of drying the second reaction liquid to form a lithium iron phosphate precursor; and the primary baking step of baking the lithium iron phosphate precursor under a non-oxidizing atmosphere thus obtaining lithium iron phosphate.

Подробнее
Номер записи: 12
16-02-2012 дата публикации

Method for manufacturing porous structure and method for forming pattern

Номер: US20120037594A1
Автор: Koji Asakawa, Toshiro Hiraoka, Yasuyuki Hotta, Yoshihiro Akasaka
Принадлежит: Individual

A pattern forming material contains a block copolymer or graft copolymer and forms a structure having micro polymer phases, in which, with respect to at least two polymer chains among polymer chains constituting the block copolymer or graft copolymer, the ratio between N/(Nc−No) values of monomer units constituting respective polymer chains is 1.4 or more, where N represents total number of atoms in the monomer unit, Nc represents the number of carbon atoms in the monomer unit, No represents the number of oxygen atoms in the monomer unit.

Подробнее
Номер записи: 13
23-02-2012 дата публикации

Auxiliary electrodes for electrochemical cells containing high capacity active materials

Номер: US20120045670A1
Автор: Constantin I. Stefan, Ghyrn E. Loveness, Gregory Alan Roberts, Rainer J. Fasching, Ryan Kottenstette, Song Han
Принадлежит: Amprius Inc

Provided are novel electrochemical cells that include positive electrodes, negative electrodes containing high capacity active materials such as silicon, and auxiliary electrodes containing lithium. An auxiliary electrode is provided in the cell at least prior to its formation cycling and is used to supply lithium to the negative electrode. The auxiliary electrode may be then removed from the cell prior or after formation. The transfer of lithium to the negative electrode may be performed using a different electrolyte, a higher temperature, and/or a slower rate than during later operational cycling of the cell. After this transfer, the negative electrode may remain pre-lithiated during later cycling at least at a certain predetermined level. This pre-lithiation helps to cycle the cell at more optimal conditions and to some degree maintain this cycling performance over the operating life of the cell. Also provided are methods of fabricating such cells.

Подробнее
Номер записи: 14
23-02-2012 дата публикации

Electric storage device

Номер: US20120045685A1
Автор: Daisuke Seki, Katsuhiro Yoshida, Kouji Maeda, Masako Ooya, Risa Miyagawa, Yukinori Hato
Принадлежит: NEC Tokin Corp

To provide an electric storage device whose negative electrode can be doped with lithium ions in a short time and whose resistance can be lowered. An electric storage device including a unit that is obtained by alternately stacking a positive-electrode sheet 9 and a negative-electrode sheet 10 with a separator 3 interposed therebetween, the positive electrode sheet 9 including a positive-electrode active material layer 1 and a positive-electrode charge collector 4 , and the negative electrode sheet 10 including a negative-electrode active material layer 2 and a negative-electrode charge collector 5 , in which a foil, an etching foil, or a porous lath foil is used as the positive-electrode charge collector 4 and the negative-electrode charge collector 5 , a cut is made in a coating area of the positive-electrode active material layer 1 and the negative-electrode active material layer 2 , and a lithium supply source is disposed so as to be opposed to the negative electrode sheet 10 of the unit.

Подробнее
Номер записи: 15
23-02-2012 дата публикации

Negative active materials, lithium ion batteries, and methods thereof

Номер: US20120045687A1
Автор: Li Ma, LU Zhang, Qiang Wang, Yan Zhu, Zhenyue Wu
Принадлежит: BYD Co Ltd

Methods of preparing negative active materials and negative active materials are provided herein. The preparation methods include: A) mixing a carbon material, an organic polymer, a Sn-containing compound—optionally with water—to obtain a mixed solution system; B) adding a complexing agent into the mixed solution system obtained in step A optionally while stirring to form an intermediate solution; C) adding a reducing agent into the intermediate solution obtained in step B to a reaction product; D) optionally filtering, washing and then drying the reaction product to obtain the negative active material.

Подробнее
Номер записи: 16
01-03-2012 дата публикации

Modifier of lithium ion battery and method for making the same

Номер: US20120049108A1
Автор: Jian Gao, Jian-Jun Li, Li-Chun Zhang, Wei-Hua Pu, Xiang-Ming He
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A modifier of a lithium ion battery includes a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide in a liquid phase solvent. A method for making the modifier of the lithium ion battery. In the method, a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide are provided. The phosphorus source, the trivalent aluminum source, and the metallic oxide are mixed in a liquid phase solvent to form a clear solution.

Подробнее
Номер записи: 17
01-03-2012 дата публикации

Cathode active material for lithium secondary battery

Номер: US20120049109A1
Автор: Akira Urakawa, Nobuyuki Kobayashi, Ryuta Sugiura, Tsutomu Nanataki
Принадлежит: NGK Insulators Ltd

The present invention provides a cathode active material for a lithium secondary battery containing therein an open pore having a protrusion which is formed so as to extend from the inner surface of the open pore toward the center of the open pore. Specifically, the protrusion is formed so as to extend toward the center of a virtual circle formed by approximating the shape of a cross section of the open pore to a circular shape. The protrusion is formed of the same material as the remaining portion of the cathode active material.

Подробнее
Номер записи: 18
01-03-2012 дата публикации

Separator of lithium ion battery, method for making the same, and lithium ion battery using the same

Номер: US20120052361A1
Автор: Jian Gao, Jian-Guo Ren, Jian-Jun Li, Li-Chun Zhang, Wei-Hua Pu, Xiang-Ming He
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

A separator of a battery includes a porous membrane and a modifier layer disposed on a surface of the porous membrane, wherein a material of the modifier layer is a dried mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide in a liquid phase solvent.

Подробнее
Номер записи: 19
08-03-2012 дата публикации

Battery

Номер: US20120058375A1
Автор: Kazuaki Matsuo, Kazuhide Tozuka, Kazuya Okabe, Kenji Tanaka
Принадлежит: GS YUASA INTERNATIONAL LTD

Provided is a battery which has less tendency to experience delamination or loss of short circuit prevention layer and/or active material layer during manufacture and use. A battery comprising a laminated electrode assembly in which a positive electrode, a negative electrode, and a separator are laminated together; wherein an alumina-containing layer containing γ-alumina particles is formed on at least one species selected from among the group consisting of the positive electrode, the negative electrode, and the separator. The fact that alumina-containing layer(s) is or are made to contain γ-alumina particles makes it possible to obtain high bond strength between alumina-containing layer(s) and electrode(s) comprising metal(s), current collector(s) and/or active material(s) making up electrode(s), and/or separator(s).

Подробнее
Номер записи: 20
15-03-2012 дата публикации

Positive electrode for rechargeable lithium battery and rechargeable lithium battery including same

Номер: US20120064398A1
Автор: Jin-Kyu Hong, Jun-Sik Kim, Sung-Soo Kim, Tae-keun KIM
Принадлежит: Samsung SDI Co Ltd

Disclosed is rechargeable lithium battery that includes a positive electrode including a positive active material layer, a negative electrode including a negative active material and an electrolyte wherein the positive active material layer includes a positive active material, a binder, a conductive material, and an activated carbon, the activated carbon includes micropores in which manganese ions are adsorbed and trapped, and the activated carbon is included in an amount of about 0.1 wt % to about 3 wt % based on the total weight of the positive active material layer.

Подробнее
Номер записи: 21
22-03-2012 дата публикации

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

Номер: US20120070731A1
Автор: Noriko Shima, Shinichi Kinoshita, Takashi Fujii, Youichi Ohashi
Принадлежит: Mitsubishi Chemical Corp

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.

Подробнее
Номер записи: 22
22-03-2012 дата публикации

Lithium secondary battery and anode therefor

Номер: US20120070734A1
Автор: Yasushi Tamura, Yoshihiro Uetani, Yuki Kajisa
Принадлежит: Nitto Denko Corp

The present invention provides an anode of a lithium secondary battery comprising a current collector layer and an active material layer laminated on the current collector layer, wherein the current collector layer has a laminar structure without an opening, the active material layer has a network structure with an opening, and the shape of the opening in a planar view is a substantially regular polygon of pentagon or above and/or a substantial circle. The anode of the present invention can achieve charge-discharge-cycle property superior to that of the prior art.

Подробнее
Номер записи: 23
22-03-2012 дата публикации

Method for producing porous metal body, porous aluminum body, battery electrode material including porous metal body or porous aluminum body, and electrode material for electrical double layer capacitor

Номер: US20120070735A1
Автор: Akihisa Hosoe, Hajime Ota, Kazuki Okuno, Kengo Goto, Koji Nitta, Koutarou Kimura, Masatoshi Majima, Shinji Inazawa, Shoichiro Sakai, Tomoyuki Awazu
Принадлежит: Sumitomo Electric Industries Ltd

A porous metal body containing continuous pores and having a low oxygen content is provided by decomposing a porous resin body that contains continuous pores and has a layer of a metal thereon by heating the porous resin body at a temperature equal to or less than the melting point of the metal while the porous resin body is immersed in a first molten salt and a negative potential is applied to the metal layer; and a method for producing the porous metal body is provided.

Подробнее
Номер записи: 24
22-03-2012 дата публикации

Negative electrode for lithium ion secondary battery and battery using same

Номер: US20120070736A1
Автор: Hiroaki Tanizaki, Kenji Ohara, Norikazu Mineo
Принадлежит: Nissan Motor Co Ltd

There is provided a negative electrode for a lithium-ion secondary battery, including a conductive substrate, a negative electrode active material layer containing a negative electrode active material capable of absorbing and desorbing lithium ions and a conductive member having a lower elastic modulus than that of the conductive substrate, wherein at least part of the negative electrode active material is connected to the conductive substrate via the conductive member. There is also provided a lithium-ion secondary battery with such a negative electrode.

Подробнее
Номер записи: 25
22-03-2012 дата публикации

Negative electrode for lithium ion secondary battery and lithium ion secondary battery

Номер: US20120070740A1
Автор: Hideharu Takezawa, Katsumi Kashiwagi, Masaya Ugaji
Принадлежит: Panasonic Corp

Disclosed is a negative electrode for a lithium ion secondary battery, the negative electrode including a negative electrode current collector with protrusions formed on a surface thereon, and columnar bodies being carried on the protrusions and comprising an alloy active material capable of absorbing and releasing lithium ions. The columnar bodies each have a multilayer structure in which a plurality of unit layers comprising the alloy active material are stacked sequentially on the surface of the protrusion, and the average layer thickness of the unit layer in a region within 20% of the thickness of the columnar body extending from the surface of the protrusion is smaller than that in a region within 80% of the thickness of the columnar body extending from the top of the columnar body.

Подробнее
Номер записи: 26
22-03-2012 дата публикации

High capacity battery electrode structures

Номер: US20120070741A1
Автор: Ghyrn E. Loveness, Song Han, Zuqin Liu
Принадлежит: Amprius Inc

Provided are battery electrode structures that maintain high mass loadings (i.e., large amounts per unit area) of high capacity active materials in the electrodes without deteriorating their cycling performance. These mass loading levels correspond to capacities per electrode unit area that are suitable for commercial electrodes even though the active materials are kept thin and generally below their fracture limits. A battery electrode structure may include multiple template layers. An initial template layer may include nanostructures attached to a substrate and have a controlled density. This initial layer may be formed using a controlled thickness source material layer provided, for example, on a substantially inert substrate. Additional one or more template layers are then formed over the initial layer resulting in a multilayer template structure with specific characteristics, such as a surface area, thickness, and porosity. The multilayer template structure is then coated with a high capacity active material.

Подробнее
Номер записи: 27
22-03-2012 дата публикации

Vacuum Processing Apparatus, Vacuum Processing Method, and Micro-Machining Apparatus

Номер: US20120071003A1
Автор: Kazuya Dobashi, Satohiko Hoshino, Takashi Fuse, Takehiko Senoo, Yu Yoshino
Принадлежит: Individual

Disclosed is a technology in which a nozzle part is mounted in a vacuum chamber and a silicon substrate is held to face a discharge hole of the nozzle part. For example, ClF 3 gas and Ar gas are supplied from the nozzle part and the mixed gas is discharged from the nozzle part under a vacuum atmosphere. By doing this, the mixed gas is adiabatically expanded and the Ar atoms or ClF 3 molecules are combined, which become a gas cluster. The gas cluster is irradiated to the surface of the silicon substrate without being ionized and, as a result, the surface of the silicon surface becomes a porous state. Then, lithium is grown on the surface of the silicon substrate in a separate vacuum chamber 41 by sputtering without breaking the vacuum.

Подробнее
Номер записи: 28
05-04-2012 дата публикации

Non-aqueous electrolytes for electrochemical cells

Номер: US20120082890A1
Автор: Jian Dong, Khalil Amine, Zhengcheng Zhang
Принадлежит: UChicago Argonne LLC

A electrolyte for a lithium battery includes a silane/siloxane compound represented by SiR 4-x-y R′ x R″ y , by Formula II, or Formula III: where each R is individually an alkenyl, alkynyl, alk(poly)enyl, alk(poly)ynyl, aryl; each R′ is represented by; each R″ is represented by Formula I-B; R 1 is an organic spacer; R 2 is a bond or an organic spacer; R 3 is alkyl or aryl; k is 1-15; m is 1-15; n is 1 or 2; p is 1-3; x′ is 1-2; and y′ is 0-2.

Подробнее
Номер записи: 29
05-04-2012 дата публикации

Secondary battery

Номер: US20120082891A1
Автор: Chang-Bum Ahn
Принадлежит: Samsung SDI Co Ltd

Disclosed are a secondary battery including an electrode assembly which includes a first electrode plate and a second electrode plate arranged as a stack, and a separator interposed between the first electrode plate and the second electrode plate, the first electrode plate including a first active material coating part formed by coating a base with a first active material and a first non-coating part, the second electrode plate including the second active material coating part formed by coating a base with a second active material and a second non-coating part, and the first non-coating part including an insulating member in a portion corresponding to the second electrode plate.

Подробнее
Номер записи: 30
05-04-2012 дата публикации

Lithium secondary battery

Номер: US20120082892A1
Автор: Atsushi Fukui, Kei Kobayashi, Maruo Kamino, Taizou Sunano
Принадлежит: Sanyo Electric Co Ltd

A lithium secondary battery has a positive electrode, a separator, and a negative electrode having a negative electrode current collector and a negative electrode mixture layer formed on a surface of the negative electrode current collector. The negative electrode mixture layer contains a negative electrode active material including a metal element capable of alloying with lithium. The negative electrode current collector includes a substrate made of a Cu—Fe—P alloy foil, and a surface layer provided on both surfaces of the substrate and made of pure copper. The surface layer has a Vickers hardness of 120 and less than that of the substrate. The negative electrode current collector has a proof stress of 308 MPa.

Подробнее
Номер записи: 31
05-04-2012 дата публикации

Method for producing nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery

Номер: US20120082898A1
Автор: Masahisa Fujimoto, Yasufumi Takahashi
Принадлежит: Sanyo Electric Co Ltd

A method for producing a nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte, the negative electrode active material containing a carbon material and particles of at least one metal selected from zinc and aluminum. The method includes a step of preparing an aqueous negative electrode mixture slurry that contains the metal particles, the carbon material, and a polysaccharide polymer as a thickener and that has pH adjusted in the range of 6.0 to 9.0; and a step of forming a negative electrode by applying the negative electrode mixture slurry to a negative electrode current collector.

Подробнее
Номер записи: 32
05-04-2012 дата публикации

Lithium-based anode with ionic liquid polymer gel

Номер: US20120082901A1
Автор: Daher Michael Badine, Helmut Moehwald, Igor Kovalev, Rüdiger Schmidt, Yuriy V. Mikhaylik
Принадлежит: BASF SE, Sion Power Corp

Li-based anodes for use in an electric current producing cells having long life time and high capacity are provided. In certain embodiments, the Li-based anode comprises at least one anode active Li-containing compound and a composition comprising at least one polymer, at least one ionic liquid, and optionally at least one lithium salt. The composition may be located between the at least one Li-containing compound and the catholyte used in the electric current producing cell. In some embodiments, the at least one polymer may be incompatible with the catholyte. This configuration of components may lead to separation between the lithium active material of the anode and the catholyte. Processes for preparing the Li-based anode and to electric current producing cells comprising such an anode are also provided.

Подробнее
Номер записи: 33
12-04-2012 дата публикации

Organic/inorganic composite electrolyte and electrochemical device prepared thereby

Номер: US20120088029A1
Автор: Dae-Jong Seo, Jang-Hyuk Hong, Sang-Young Lee, Seok-Koo Kim
Принадлежит: LG Chem Ltd

The present invention relates to a method for manufacturing an electrode having an organic/inorganic composite porous coating layer comprising porous inorganic particles and a binder polymer, wherein the porous inorganic particles have pores having such a size that lithium ions (Li + ) solvated in an electrolyte solvent can pass therethrough. The method comprises the steps of dispersing inorganic precursors and heat-decomposable compounds in a dispersion medium, misting the inorganic precursor solution, and performing a thermal decomposition and a crystallization processes, to thereby prepare porous inorganic particles, adding and mixing the porous inorganic particles to a polymer solution in which a binder polymer is dissolved, and coating the mixture onto a preliminarily formed electrode and drying the coating layer.

Подробнее
Номер записи: 34
12-04-2012 дата публикации

Secondary battery

Номер: US20120088129A1
Автор: Masanori Sumihara, Mayumi Kaneda, Takuhiro Nishimura
Принадлежит: Panasonic Corp

A secondary battery including an electrode group 11 which is formed by winding or stacking a positive electrode plate 6 and a negative electrode plate 9 with separators 10 a, 10 b interposed therebetween, and is sealed in an exterior package 14 together with a nonaqueous electrolyte, wherein the positive electrode plate 6 includes a positive electrode mixture layer 5 formed on a positive electrode current collector 4, the negative electrode plate 9 includes a negative electrode mixture layer 8 formed on a negative electrode current collector 7, a gas adsorbing layer 19 including a binder and a structural material 16 made of inorganic oxide is formed on a surface of at least one of the positive electrode mixture layer 5 or the negative electrode mixture layer 8, and a gas adsorbent 18 is held in a pore 17 formed in the gas adsorbing layer 19.

Подробнее
Номер записи: 35
12-04-2012 дата публикации

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

Номер: US20120088150A1
Автор: Cheol-Hee Hwang
Принадлежит: Samsung SDI Co Ltd

An electrode for a lithium secondary battery and a lithium secondary battery including the same, the electrode including a polyamide imide (PAI)-based binder, wherein a 1,3-benzenediamine peak is not observed when a composition including components extracted from the electrode by a solvent capable of dissolving the polyamideimide (PAI)-based binder is analyzed with pyrolysis-gas chromatography (Py-GC) under conditions of a pyrolysis temperature of about 750 to about 780° C., a pyrolysis time of about 5 seconds to about 15 seconds, and increasing a gas chromatography oven temperature from about 40° C. to about 300° C. at a rate of about 10° C./min.

Подробнее
Номер записи: 36
12-04-2012 дата публикации

Graphene-Sulfur Nanocomposites for Rechargeable Lithium-Sulfur Battery Electrodes

Номер: US20120088154A1
Автор: John P. Lemmon, Jun Liu, Xiaolin Li, Yuliang Cao, Zhenguo Yang
Принадлежит: Battelle Memorial Institute Inc

Rechargeable lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter less than 50 nm.

Подробнее
Номер записи: 37
12-04-2012 дата публикации

Electrode material, power storage device, and electronic device

Номер: US20120088157A1
Автор: Takahiro Kawakami
Принадлежит: Semiconductor Energy Laboratory Co Ltd

To provide an electrode material with an increased capacity and a power storage device including the electrode material. Lithium iron phosphate having improved crystallinity is provided in which the lattice constant in the a-axis direction is greater than or equal to 10.3254×10 −10 m and less than or equal to 10.3258×10 −10 m, the lattice constant in the b-axis direction is greater than or equal to 6.0035×10 −10 m and less than or equal to 6.0052×10 −10 m, and the lattice constant in the c-axis direction is greater than or equal to 4.6879×10 −10 m and less than or equal to 4.69019×10 −10 m. Further, a power storage device whose capacity is increased by using the lithium iron phosphate as a positive electrode active material to increase the number of lithium ions intercalated and deintercalated in charging and discharging is provided.

Подробнее
Номер записи: 38
19-04-2012 дата публикации

Lithium ion rechargeable batteries & the additive for lithium ion rechargeable batteries which prevents increase of the viscosity

Номер: US20120091403A1
Автор: Hidetoshi Honbou, Jinbao Zhao, Norio Iwayasu, Yuki Okuda
Принадлежит: Hitachi Maxell Energy Ltd

The preparation of a slurry so as to exhibit no strong alkalinity not only needs a strict pH control, but also needs once dispersing a positive electrode material in water and the operation of drying after the treatment, and other operations, thereby leading to the complication of the operations and a decrease in the yield. In consideration of the above-mentioned problems, the present invention provides a method for producing a positive electrode plate for a lithium ion rechargeable battery, which exhibits less complication of the operations and less decrease in the yield and can prevent the gelation of a positive electrode material slurry. The above-mentioned problems can be solved by a positive electrode for a lithium ion rechargeable battery containing a positive electrode active material capable of absorbing/desorbing lithium ions, a nitrile group-containing polymer, and a binder.

Подробнее
Номер записи: 39
03-05-2012 дата публикации

Positive electrode for rechargeable lithium battery and rechargeable lithium battery including same

Номер: US20120107687A1
Автор: Jung-Woo An, Kyeu-Yoon Sheem, Sumihito Ishida
Принадлежит: Samsung SDI Co Ltd

Disclosed is a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes a current collector; and a positive active material layer disposed on the current collector and including a lithium vanadium oxide-based positive active material represented by the following Chemical Formula 1. Li x V 2-y M y O 5   [Chemical Formula 1] In Chemical Formula 1, M is one or more selected from the group consisting of aluminum (Al), magnesium (Mg), zirconium (Zr), titanium (Ti), strontium (Sr), copper (Cu), cobalt (Co), nickel (Ni), manganese (Mn), and a combination thereof, 1<x<4, and 0≦y≦0.5.

Подробнее
Номер записи: 40
03-05-2012 дата публикации

Electrode for secondary battery, slurry for secondary battery electrode, and secondary battery

Номер: US20120107690A1
Автор: Kei Kobayashi, Toshiyuki Sekine, Yasuhiro Wakizaka
Принадлежит: Zeon Corp

A secondary battery electrode which suppresses decrease in capacity and lithium deposition at low temperatures is provided. An electrode for a secondary battery includes an electrode active material layer containing a polymer having a cationic group, an anion corresponding to the cationic group, and an electrode active material, and the cation density in the polymer is 0.1 to 15 meq/g.

Подробнее
Номер записи: 41
10-05-2012 дата публикации

Method Of Exploiting Particle Morphology To Optimize Granular Structure And Charge/Discharge Performance Of Lithium Ion Battery Cathodes

Номер: US20120112132A1
Автор: Kyle C. Smith, Timothy S. Fisher
Принадлежит: PURDUE RESEARCH FOUNDATION

A method is provided for forming a high-capacity, high-rate lithium ion battery cathode material. The method includes providing a synthesized material of electrochemically active plate-shaped nanoparticles and adding a plurality of appropriately sized diluent particles to the plate-shaped nanoparticles to form a suspension. Any liquid is removed from the solution to form a composite material. The method also includes processing the composite material to form a high-capacity, high-rate lithium ion battery cathode material.

Подробнее
Номер записи: 42
10-05-2012 дата публикации

Negative electrode active material, nonaqueous electrolyte battery and battery pack

Номер: US20120115032A1
Автор: Hiroki Inagaki, Keigo Hoshina, Norio Takami, Yasuhiro Harada, Yuki Otani
Принадлежит: Individual

According to one embodiment, a negative electrode active material includes a compound having a crystal structure of monoclinic titanium dioxide. The compound has a highest intensity peak detected by an X-ray powder diffractometry using a Cu-Kα radiation source. The highest intensity peak is a peak of a (001) plane, (002) plane, or (003) plane. A half-width (2θ) of the highest intensity peak falls within a range of 0.5 degree to 4 degrees.

Подробнее
Номер записи: 43
17-05-2012 дата публикации

Electronically conductive polymer binder for lithium-ion battery electrode

Номер: US20120119155A1
Автор: Gao Liu, Honghe Zheng, Shidi Xun, Vincent S. Battaglia
Принадлежит: UNIVERSITY OF CALIFORNIA

A family of carboxylic acid group containing fluorene/fluorenon copolymers is disclosed as binders of silicon particles in the fabrication of negative electrodes for use with lithium ion batteries. These binders enable the use of silicon as an electrode material as they significantly improve the cycle-ability of silicon by preventing electrode degradation over time. In particular, these polymers, which become conductive on first charge, bind to the silicon particles of the electrode, are flexible so as to better accommodate the expansion and contraction of the electrode during charge/discharge, and being conductive promote the flow battery current.

Подробнее
Номер записи: 44
17-05-2012 дата публикации

Deposition quantity measuring apparatus, deposition quantity measuring method, and method for manufacturing electrode for electrochemical element

Номер: US20120121794A1
Автор: Hiromasa Yagi, Kazuyoshi Honda
Принадлежит: Panasonic Corp

A manufacturing method according to the present invention includes a step of allowing lithium to deposit on a substrate provided with a layer capable of forming a compound together with lithium. A first beta ray and a second beta ray are emitted toward the substrate for irradiation before the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. The first beta ray and the second beta ray are emitted toward the substrate for irradiation after the deposition step to measure backscattering, from the substrate, of the first beta ray and the second beta ray. A decrement in backscattering of the first beta ray before and after lithium deposition and a decrement in backscattering of the second beta ray before and after lithium deposition are calculated. The deposition step is controlled depending on the decrement in the backscattering of the first beta ray and the decrement in the backscattering of the second beta ray.

Подробнее
Номер записи: 45
17-05-2012 дата публикации

High performance lithium or lithium ion cell

Номер: US20120121974A1
Автор: Jesse Chau, Ka Ki Yip, Konstantin Tikhonov, Marc Juzkow, Tobias Johnson
Принадлежит: Leyden Energy Inc

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.

Подробнее
Номер записи: 46
17-05-2012 дата публикации

Lithium secondary battery cathode

Номер: US20120121978A1
Автор: Akira Urakawa, Jun Yoshikawa, Nobuyuki Kobayashi, Shigeki Okada, Tsutomu Nanataki
Принадлежит: NGK Insulators Ltd

An object of the present invention is to provide a lithium secondary battery cathode which can more improve characteristics of the battery. The cathode of the present invention includes a first layer composed of a plate-like cathode active material and a second layer containing particles of the cathode active material and a binder, the second layer being joined to the first layer in a stacked state.

Подробнее
Номер записи: 47
17-05-2012 дата публикации

Electrolytes for rechargeable batteries

Номер: US20120121989A1
Автор: Constantin I. Stefan, Gregory Alan Roberts, Rainer J. Fasching
Принадлежит: Amprius Inc

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.

Подробнее
Номер записи: 48
17-05-2012 дата публикации

High performance lithium or lithium ion cell

Номер: US20120121991A1
Автор: Jesse Chau, Ka Ki Yip, Konstantin Tikhonov, Marc Juzkow, Tabias Johnson
Принадлежит: Leyden Energy Inc

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.

Подробнее
Номер записи: 49
24-05-2012 дата публикации

Rechargeable battery

Номер: US20120129025A1
Автор: THEVASAHAYAM AROCKIADOSS
Принадлежит: EMPIRE TECHNOLOGY DEVELOPMENT LLC

Technologies are generally described for a battery, a method for implementing a battery and a rechargeable battery system. In some examples, the rechargeable battery system includes a battery. The battery may include a first electrode including a tantalum component, a vanadium component and a boron component. The battery may further include a second electrode and an electrical insulator between the first and the second electrode. The battery system may include a housing, where the housing includes the first electrode, and where the housing is effective to communicate light and oxygen to the first electrode. A sensor may be disposed so as to be effective to detect a reaction of tantalum and oxygen in the housing and generate a reaction signal in response. A processor may be in electrical communication with the sensor and effective to receive the reaction signal and generate an indication based on the reaction signal.

Подробнее
Номер записи: 50
24-05-2012 дата публикации

Binder for lithium secondary battery, negative electrode for lithium secondary battery, lithium secondary battery, binder precursor solution for lithium secondary battery, and method for manufacturing negative electrode for lithium secondary battery

Номер: US20120129048A1
Автор: Atsushi Fukui, Maruo Kamino, Taizo Sunano, Yoshinori Yoneda
Принадлежит: Sanyo Electric Co Ltd, Shin Etsu Chemical Co Ltd

Provided is a binder capable of realizing a lithium secondary battery that includes a negative electrode including a negative-electrode active material layer containing at least one of silicon and a silicon alloy as a negative-electrode active material and also containing a binder and has an excellent charge-discharge cycle characteristic. The binder for the lithium secondary battery contains a polyimide resin that is formed by imidizing either a tetracarboxylic acid or a tetracarboxylic anhydride and a diamine, the polyimide resin having a hydrolyzable silyl group.

Подробнее
Номер записи: 51
31-05-2012 дата публикации

Non-aqueous electrolyte secondary battery and method of manufacturing the same

Номер: US20120135319A1
Автор: Hideyuki Koga, Katsutoshi Takeda, Masahisa Fujimoto, Motoharu Saito
Принадлежит: Sanyo Electric Co Ltd

A non-aqueous electrolyte secondary battery having a negative electrode, a non-aqueous electrolyte, and a positive electrode having a positive electrode active material comprising sodium oxide, is characterized in that the sodium oxide contains lithium, and the molar amount of the lithium is less than the molar amount of the sodium.

Подробнее
Номер записи: 52
31-05-2012 дата публикации

Process to induce polymerization of an organic electronically conductive polymer

Номер: US20120136136A1
Автор: Christian Kuss, Christophe Michot, David Lepage, Guoxian Liang, Michel Gauthier, Steen Brian Schougaard
Принадлежит: Phostech Lithium Inc, Universite Du Quebec A Montreal

A process to induce polymerization of an organic electronically conductive polymer in the presence of a partially delithiated alkali metal phosphate which acts as the polymerization initiator.

Подробнее
Номер записи: 53
07-06-2012 дата публикации

Method of forming a solid state cathode for high energy density secondary batteries

Номер: US20120137508A1
Автор: Isaiah O. Oladeji
Принадлежит: Individual

A method for making a solid state cathode comprises the following steps: forming an alkali free first solution comprising at least one transition metal and at least two ligands; spraying this solution onto a substrate that is heated to about 100 to 400° C. to form a first solid film containing the transition metal(s) on the substrate; forming a second solution comprising at least one alkali metal, at least one transition metal, and at least two ligands; spraying the second solution onto the first solid film on the substrate that is heated to about 100 to 400° C. to form a second solid film containing the alkali metal and at least one transition metal; and, heating to about 300 to 1000° C. in a selected atmosphere to react the first and second films to form a homogeneous cathode film. The cathode may be incorporated into a lithium or sodium ion battery.

Подробнее
Номер записи: 54
07-06-2012 дата публикации

Current collector for nonaqueous electrolyte battery, electrode for nonaqueous electrolyte battery, and nonaqueous electrolyte battery

Номер: US20120141882A1
Автор: Akihisa Hosoe, Koji Nitta, Masatoshi Majima, Nobuhiro Ota
Принадлежит: Sumitomo Electric Industries Ltd

A current collector for a nonaqueous electrolyte battery, in which oxygen content in the surface of an aluminum porous body is low. The current collector is made of an aluminum porous body. The content of oxygen in an aluminum porous body surface is 3.1% by mass or less. The aluminum porous body includes an aluminum alloy containing at least one Cr, Mn and transition metal elements. The aluminum porous body can be prepared by a method in which, after an aluminum alloy layer is formed on the surface of a resin of a resin body having continuous pores, the resin body is heated to a temperature of the melting point of the aluminum alloy or less to thermally decompose the resin body while applying a potential lower than the standard electrode potential of aluminum to the aluminum alloy layer with the resin body dipped in a molten salt.

Подробнее
Номер записи: 55
14-06-2012 дата публикации

Anode of cable-type secondary battery and manufacturing method thereof

Номер: US20120148918A1
Автор: Heon-Cheol Shin, Je-Young Kim, Ki-Tae Kim, Sang-Young Lee, Yo-Han Kwon
Принадлежит: LG Chem Ltd

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.

Подробнее
Номер записи: 56
21-06-2012 дата публикации

Active material, electrode including the active material and manufacturing method thereof, and secondary battery

Номер: US20120156556A1
Автор: Kazutaka Kuriki, Mitsuhiro Ichijo, Toshiya Endo
Принадлежит: Semiconductor Energy Laboratory Co Ltd

An electrode in which a silicon layer is provided over a current collector, a thin film layer having a thickness within a certain range is provided on a surface of the silicon layer, and the thin film layer contains fluorine, is used for a power storage device. The thickness of the thin film layer containing fluorine is greater than 0 nm and less than or equal to 10 nm, preferably greater than or equal to 4 nm and less than or equal to 9 nm. The fluorine concentration of the thin film layer containing fluorine is preferably as high as possible, and the nitrogen concentration, the oxygen concentration, and the hydrogen concentration thereof are preferably as low as possible.

Подробнее
Номер записи: 57
21-06-2012 дата публикации

Water-based slurry composition, electrode plate for electricity storage device, and electricity storage device

Номер: US20120156562A1
Автор: Nobuyuki Kobayashi, Shinya Tsuchida, Takanori Sannan, Yoshihiko Iijima
Принадлежит: Dainichiseika Color and Chemicals Mfg Co Ltd

A water-based slurry composition contains (1) a water-based medium containing at least water as a polar solvent, (2) at least one polymer selected from cellulose derivatives, alginic acid derivatives, starch derivatives, chitin derivatives, chitosan derivatives, polyallylamine and polyvinylamine, (3) a hydrophobic filler, and (4) a polybasic acid or a derivative thereof. The composition has a water content of 30 mass % or higher. An electrode plate for an electricity storage device, and the electricity storage device are also disclosed.

Подробнее
Номер записи: 58
28-06-2012 дата публикации

Thin film buried anode devices

Номер: US20120164517A1
Автор: C. Edwin Tracy, Ping Liu, Se-Hee Lee
Принадлежит: Alliance for Sustainable Energy LLC

A reverse configuration, lithium thin film battery ( 300 ) having a buried lithium anode layer ( 305 ) and process for making the same. The present invention is formed from a precursor composite structure ( 200 ) made by depositing electrolyte layer ( 204 ) onto substrate ( 201 ), followed by sequential depositions of cathode layer ( 203 ) and current collector ( 202 ) on the electrolyte layer. The precursor is subjected to an activation step, wherein a buried lithium anode layer ( 305 ) is formed via electroplating a lithium anode layer at the interface of substrate ( 201 ) and electrolyte film ( 204 ). The electroplating is accomplished by applying a current between anode current collector ( 201 ) and cathode current collector ( 202 ).

Подробнее
Номер записи: 59
28-06-2012 дата публикации

Positive electrode active material for secondary battery and magnesium secondary battery using the same

Номер: US20120164537A1
Автор: Katsunori Nishimura, Masahiro Yonemoto, Tadashi Fujieda, Takashi Naito, Takuya Aoyagi, Yuichi Sawai
Принадлежит: HITACHI LTD

In a positive electrode active material for a magnesium secondary battery and a magnesium secondary battery using it, there is contained a powder particle containing a crystal phase having a structure formed with aggregation of a plurality of crystallites, and amorphous phases formed between the crystallites themselves; the amorphous phases contain at least one kind of a metal oxide selected from a vanadium oxide, an iron oxide, a manganese oxide, a nickel oxide and a cobalt oxide; and the crystal phase and the amorphous phases use the positive electrode active material enabling to store and release magnesium ions.

Подробнее
Номер записи: 60
28-06-2012 дата публикации

Surface -controlled lithium ion-exchanging energy storage device

Номер: US20120164539A1
Автор: Aruna Zhamu, Bor Z. Jang, Chenguang Liu, David Neff
Принадлежит: Nanotek Instruments Inc

A surface-controlled, lithium ion-exchanging battery device comprising: (a) A positive electrode (cathode) comprising a first functional material having a first lithium-capturing or lithium-storing surface; (b) A negative electrode (anode) comprising a second functional material having a second lithium-capturing or lithium-storing surface; (c) A porous separator disposed between the two electrodes, and (d) A lithium-containing electrolyte (preferably liquid or gel electrolyte) in physical contact with the two electrodes; wherein at least one of the two electrodes contains therein a lithium source (e.g., lithium foil, lithium powder, stabilized lithium particles, etc) prior to the first charge or the first discharge cycle of the battery device. This new generation of energy storage device exhibits the best properties of both the lithium ion battery and the supercapacitor.

Подробнее
Номер записи: 61
05-07-2012 дата публикации

Method for making electrode composite material

Номер: US20120168696A1
Автор: Chang-Yin Jiang, Dan Wang, Jian Gao, Jian-Jun Li, xian-kun Huang, Xiang-Ming He
Принадлежит: Hon Hai Precision Industry Co Ltd, TSINGHUA UNIVERSITY

The present disclosure relates to a method for making an electrode composite material. In the method, a trivalent aluminum source, a doped element source, and electrode active material particles are provided. The trivalent aluminum source and the doped element source are dissolved in a solvent to form a solution having trivalent aluminum ions and doped ions. The electrode active material particles are mixed with the solution having the trivalent aluminum ions and doped ions to form a mixture. A phosphate radical containing solution is added to the mixture to react with the trivalent aluminum ions and doped ions, thereby forming a number of electrode composite material particles. The electrode composite material particles are heated.

Подробнее
Номер записи: 62
05-07-2012 дата публикации

Partially and fully surface-enabled metal ion-exchanging energy storage devices

Номер: US20120171574A1
Автор: Aruna Zhamu, Bor Z. Jang, Chenguang Liu, David Neff, Zhenning Yu
Принадлежит: Nanotek Instruments Inc

A surface-enabled, metal ion-exchanging battery device comprising a cathode, an anode, a porous separator, and a metal ion-containing electrolyte, wherein the metal ion is selected from (A) non-Li alkali metals; (B) alkaline-earth metals; (C) transition metals; (D) other metals such as aluminum (Al); or (E) a combination thereof; and wherein at least one of the electrodes contains therein a metal ion source prior to the first charge or discharge cycle of the device and at least the cathode comprises a functional material or nano-structured material having a metal ion-capturing functional group or metal ion-storing surface in direct contact with said electrolyte, and wherein the operation of the battery device does not involve the introduction of oxygen from outside the device and does not involve the formation of a metal oxide, metal sulfide, metal selenide, metal telluride, metal hydroxide, or metal-halogen compound. This energy storage device has a power density significantly higher than that of a lithium-ion battery and an energy density dramatically higher than that of a supercapacitor.

Подробнее
Номер записи: 63
12-07-2012 дата публикации

Si ALLOY NEGATIVE ELECTRODE ACTIVE MATERIAL FOR ELECTRIC DEVICE

Номер: US20120175551A1
Автор: Manabu Watanabe, Osamu Tanaka, Takashi Miyamoto
Принадлежит: Nissan Motor Co Ltd

[Problem] Provided is a negative electrode active material for an electric device which exhibits a well-balanced property of maintaining a high cycle property and attaining a high initial capacity. [Technical solution] The negative electrode active material for an electric device comprising an alloy having a composition formula Si x Zn y Al z (where each of x, y, and z represents amass percent value, satisfying (1) x+y+z=100, (2) 21≦x<100, (3) 0<y<79, and (4) 0<z<79).

Подробнее
Номер записи: 64
12-07-2012 дата публикации

Lithium secondary battery

Номер: US20120176089A1
Автор: Duck-chul Hwang, Geun-bae Kim, Jan-Dee Kim, Jun-Won Suh, Won-II Jung, Yong-Chul Park
Принадлежит: Samsung SDI Co Ltd

Disclosed is a lithium secondary battery including a positive electrode comprising a combination of positive active materials. The combination includes a material represented by one or both of Formulae 1 and 2; and a material of Formula 3 as follows: Li a Ni b Mn c M d O 2   (Formula 1) where 0.90≦a≦1.2; 0.5≦b≦0.9; 0<c<0.4; 0≦d≦0.2; Li a Ni b Co c Mn d M e O 2   (Formula 2) where 0.90≦a≦1.2, 0.5≦b≦0.9, 0<c<0.4, 0<d<0.4, and 0≦e≦0.2; Li a CoM b O 2   (Formula 3) where 0.90≦a≦1.2 and 0≦b≦0.2; and each M of Formulae 1-3 is independently selected from the group consisting of Mg, Ca, Sr, Ba, Ra, Sc, Y, Ti, Zr, Hf, Rf, V, Nb, Ta, Db, Cr, Mo, W, Sg, Tc, Re, Bh, Fe, Ru, Os, Hs, Rh, Ir, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Tl, Si, Ge, Sn, P, As, Sb, Bi, S, Se, Te, Po, and combinations.

Подробнее
Номер записи: 65
12-07-2012 дата публикации

Method for manufacturing nonaqueous electrolyte secondary battery

Номер: US20120177843A1
Автор: Yasuhiko Takemura
Принадлежит: Semiconductor Energy Laboratory Co Ltd

When an active material with low ionic conductivity and low electric conductivity is used in a nonaqueous electrolyte secondary battery such as a lithium ion battery, it is necessary to reduce the sizes of particles; however, reduction in sizes of particles leads to a decrease in electrode density. Active material particles of an oxide, which include a transition metal and have an average size of 5 nm to 50 nm, are mixed with an electrolyte, a binder, and the like to form a slurry, and the slurry is applied to a collector. Then, the collector coated with the slurry is exposed to a magnetic field. Accordingly, the active material particles aggregate so that the density thereof increases. Alternatively, the active material particles may be applied to the collector in a magnetic field. The use of the aggregating active material particles makes it possible to increase the electrode density.

Подробнее
Номер записи: 66
12-07-2012 дата публикации

Method for the production of stretchable electrodes

Номер: US20120177934A1
Автор: Christel Fussangel, Joachim Wagner, Stephanie Vogel
Принадлежит: BAYER MATERIALSCIENCE AG

The invention relates to a method for producing stretchable electrodes, where electrically conductive carbon particles, especially carbon nanotubes, are introduced into a coating comprising an elastomer. In said method, a preparation of non-aggregated carbon particles having an average particle diameter ranging from=0.3 nm to=3000 nm in a solvent acts upon a coating comprising an elastomer. The solvent can cause a coating comprising an elastomer to swell. The duration of the action is calculated so as to be insufficient to dissolve the elastomer. Optionally, another electrically conductive layer is applied. The invention also relates to a stretchable electrode obtained in said manner and to the use thereof.

Подробнее
Номер записи: 67
19-07-2012 дата публикации

Lithium secondary battery and positive electrode for the battery

Номер: US20120183851A1
Автор: Akira Tsujiko, Keiko Wasada, Sachie Yuasa, Takeshi Abe, Tomitaro Hara
Принадлежит: Toyota Motor Corp

The lithium secondary battery positive electrode provided by the present invention has a positive electrode collector and a positive active material layer formed on the collector. The positive active material layer is composed of a matrix phase containing at least one particulate positive active material and at least one binder, and an aggregate phase dispersed in the matrix phase, constituted by aggregation of at least one particulate positive active material and containing substantially no binder.

Подробнее
Номер записи: 68
19-07-2012 дата публикации

Positive Active Material for Rechargeable Lithium Battery, Method of Manufacturing the Same and Rechargeable Lithium Battery Using the Same

Номер: US20120183853A1
Автор: Chang-Ui Jeong, Hee-Young Chu, Jae-Hyuk Kim, Jong-Seo Choi, Myung-Hwan Jeong, Sung-Hwan Moon
Принадлежит: Samsung SDI Co Ltd

A positive active material for a rechargeable lithium battery includes a positive active material compound including a metal compound for intercalating and deintercalating lithium, a coating particle having an embedded portion embedded into the active material compound and a protruding portion protruding from the surface of the active material, and a rechargeable lithium battery including the positive active material.

Подробнее
Номер записи: 69
19-07-2012 дата публикации

Electrode including nanostructures for rechargeable cells

Номер: US20120183856A1
Автор: Mark C. Platshon, Song Han, Yi Cui
Принадлежит: Amprius Inc

A lithium ion battery electrode includes silicon nanowires used for insertion of lithium ions and including a conductivity enhancement, the nanowires growth-rooted to the conductive substrate.

Подробнее
Номер записи: 70
19-07-2012 дата публикации

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

Номер: US20120183864A1
Автор: Kazuhiro Miyoshi, Koji Abe, Takaaki Kuwata
Принадлежит: UBE Industries Ltd

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. %.

Подробнее
Номер записи: 71
19-07-2012 дата публикации

Process for producing a composite material

Номер: US20120184702A1
Автор: Arno Lange, Gerhard Cox, Oliver Gronwald, Rainer Dyllick-Brenzinger, Theo Smit
Принадлежит: BASF SE

The present invention relates to a process for producing composite materials which consist essentially of a) at least one oxidic phase; and b) at least one organic polymer phase; by copolymerizing at least one compound A selected from aryloxy metalates, aryloxy semimetalates and aryloxy esters of nonmetals which form oxo acids and are different than carbon and nitrogen with at least one compound B selected from formaldehyde and formaldehyde equivalents, in a reaction medium which is essentially anhydrous, wherein the compound B is used in such an amount that the molar ratio of formaldehyde to the aryloxy groups in compound A is at least 0.9:1.

Подробнее
Номер записи: 72
26-07-2012 дата публикации

Non-aqueous electrolyte secondary battery

Номер: US20120189916A1
Автор: Naoki Imachi, Takanobu Chiga
Принадлежит: Sanyo Electric Co Ltd

A non-aqueous electrolyte secondary battery has a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, a non-aqueous electrolyte, a separator interposed between the positive electrode and the negative electrode, and a porous layer provided on a surface of the positive electrode. The porous layer contains titania particles, a dispersing agent, and an aqueous binder. The dispersing agent includes silica having an average particle size of less than 100 nm and less than that of the titania particles.

Подробнее
Номер записи: 73
02-08-2012 дата публикации

Process for producing thin film lithium secondary battery

Номер: US20120196175A1
Автор: Hideyuki Odagi, Makoto Aodai, Masanori Hida, Tetsuya Shimada, Toshiharu Kurauchi
Принадлежит: Ulvac Inc

A process for producing a chargeable-and-dischargeable thin film lithium secondary battery, which includes a substrate, a positive electrode film arranged on the substrate and formed in a structure of which lithium is insertable and releasable, an electrolyte film which is arranged on the positive electrode film and being in contact with the positive electrode film and contains lithium ions and in which lithium ions are movable, and a negative electrode film made of metallic lithium and arranged on the electrolyte film and being in contact with the electrolyte film, wherein after the negative electrode film is formed, a lithium carbonate film is formed on a surface of the negative electrode film by bringing a surface of the negative electrode film into contact with a surface-treating gas containing a rare gas and carbon dioxide. The process does not change the properties of a metallic lithium film as a negative electrode.

Подробнее
Номер записи: 74
09-08-2012 дата публикации

Thin flexible battery

Номер: US20120202101A1
Автор: Tomohiro Ueda
Принадлежит: Panasonic Corp

Disclosed is a thin flexible battery including: an electrode group which includes a positive electrode including a sheet-like positive electrode current collector with a positive electrode active material layer adhering to one surface thereof, a negative electrode including a sheet-like negative electrode current collector with a negative electrode active material layer adhering to one surface thereof, and an electrolyte layer interposed between the positive electrode active material layer and a lithium metal or lithium alloy; and a housing accommodating the electrode group. The housing includes a barrier layer, and resin layers formed on both surfaces thereof. The other surface of the positive electrode current collector and the other surface of the negative electrode current collector are in contact with the resin layer at an inner side of the housing, and have a surface roughness Rz 1 of 0.05 to 0.3 μm.

Подробнее
Номер записи: 75
23-08-2012 дата публикации

Lithium sulfur battery

Номер: US20120214043A1
Автор: Jens Olschimke, Johannes Eicher, Martin Bomkamp
Принадлежит: SOLVAY FLUOR GMBH

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.

Подробнее
Номер записи: 76
13-09-2012 дата публикации

Electrode for rechargeable lithium battery and rechargeable lithium battery including the same

Номер: US20120231336A1
Автор: Ho-Yul Baek, Jae-Rok Kim, Jake Kim, Jong-Man Kim, Kyeong-Beom Cheong
Принадлежит: Samsung SDI Co Ltd

An electrode for a rechargeable lithium battery includes an electrode active material and a copolymer represented by where A is selected from —O—(CFR f3 —CFR f4 )—, —(CFR f4 —CFR f5 )— and combinations thereof, each of R f1 through R f5 is independently selected from fluorine, C1-C4 alkyls and C1-C4 fluorinated alkyls, and each of x and y is an integer ranging from 1 to 100,000.

Подробнее
Номер записи: 77
13-09-2012 дата публикации

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

Номер: US20120231337A1
Автор: Akinori Etoh, Gen Miyata, Naoto Nishimura, Syumpei Nishinaka, Takahiro Matsuyama, Takehito Mitate
Принадлежит: Individual

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.

Подробнее
Номер записи: 78
13-09-2012 дата публикации

Electrochemical device using solid polymer electrolyte using fine polymer composite particles

Номер: US20120231346A1
Автор: Kohji Ohno, Takashi Morinaga, Takaya Sato, Takeshi Fukuda, Yoshinobu Tsujii
Принадлежит: KYOTO UNIVERSITY

The invention provides n electrochemical device containing a negative electrode having a negative electrode material layer at least on a surface; a positive electrode having a positive electrode material layer at least on a surface; and a solid polymer electrolyte of fine composite particles disposed between the negative electrode and the positive electrode. Each of the fine composite particles comprises a polymer brush layer of polymer graft chains. The fine composite particles form a substantially three-dimensional ordered array structure, and a continuous ion-conductive network channel is formed in each gap of the fine particles. The negative or positive electrode or electrode material layer have gaps filled with the fine composite particles. A contact interface between the solid electrolyte and the electrode material layer or the electrode is a polymer brush layer composed of polymer graft chains

Подробнее
Номер записи: 79
20-09-2012 дата публикации

Lithium ion secondary battery and method for manufacturing the same

Номер: US20120237822A1
Автор: Junpei Momo, Nobuhiro Inoue, Takahiro Kawakami, Tamae Moriwaka, Tomoya Futamura
Принадлежит: Semiconductor Energy Laboratory Co Ltd

A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte provided between the positive electrode and the negative electrode. The positive electrode includes a positive electrode current collector and a positive electrode active material layer over the positive electrode current collector. The positive electrode active material layer includes a plurality of lithium-containing composite oxides each of which is expressed by LiMPO 4 (M is one or more of Fe (II), Mn (II), Co (II), and Ni (II)) that is a general formula. The lithium-containing composite oxide is a flat single crystal particle in which the length in the b-axis direction is shorter than each of the lengths in the a-axis direction and the c-axis direction. The lithium-containing composite oxide is provided over the positive electrode current collector so that the b-axis of the single crystal particle intersects with the surface of the positive electrode current collector.

Подробнее
Номер записи: 80
20-09-2012 дата публикации

Positive electrode current collector laminate for lithium secondary battery

Номер: US20120237824A1
Автор: Hideo Sakata, Hiroyuki Arima, Meiten Koh, Tomoyo Sanagi
Принадлежит: Daikin Industries Ltd

The present invention provides a positive electrode current collector laminate that has the ability, even in the case of high voltage operation, to protect a positive electrode current collector from corrosion without impairing the battery characteristics, and also provides a lithium secondary battery. The positive electrode current collector laminate has an electroconductive protective layer (B) that contains a fluororesin (b1) and an electroconductive filler (b2) and is disposed on a positive electrode current collector (A), and the lithium secondary battery uses this positive electrode current collector laminate.

Подробнее
Номер записи: 81
20-09-2012 дата публикации

Negative electrode plate for lead-acid battery and method for producing the same and lead-acid battery

Номер: US20120237829A1
Автор: Yoshiomi Fujiwara
Принадлежит: GS YUASA INTERNATIONAL LTD

A lead-acid battery includes a negative electrode plate containing carbon black, fibrous carbon and graphite in a negative active material thereof. The average primary particle size of the carbon black is 10 nm or more and 120 nm or less, and the content thereof is 0.05% by mass or more and 2.2% by mass or less based on the mass of negative active material. The average length of the fibrous carbon is 1 μm or more, and the content thereof is 0.02% by mass or more and 1.2% by mass or less based on the mass of negative active material. The average particle size of the graphite is 20 μm or more, and the content thereof is 0.02% by mass or more and 2.0% by mass or less based on the mass of negative active material.

Подробнее
Номер записи: 82
27-09-2012 дата публикации

Battery active material, nonaqueous electrolyte battery and battery pack

Номер: US20120244442A1
Автор: Hiroki Inagaki, Norio Takami, Yasuhiro Harada, Yorikazu Yoshida
Принадлежит: Individual

According to one embodiment, a battery active material includes a complex oxide containing Nb and Ti and an element M. In the active material, the molar ratio (M/Ti) of the element M to Ti satisfies the following formula (I): 0<M/Ti≦0.5 (I). In the complex oxide containing Nb and Ti, the molar ratio (Nb/Ti) of Nb to Ti satisfies the following formula (II): 0≦Nb/Ti≦5 (II). The element M is at least one selected from the group consisting of B, Na, Mg, Al, Si, S, P, K, Ca, Mo, W, Cr, Mn, Co, Ni, and Fe.

Подробнее
Номер записи: 83
04-10-2012 дата публикации

Positive electrode active material for lithium secondary battery and use thereof

Номер: US20120248388A1
Автор: Hidekazu Hiratsuka, Hiroki Nagai
Принадлежит: Toyota Motor Corp

The present invention discloses a method for producing a positive electrode active material for a lithium secondary battery constituted by a lithium-nickel-cobalt-manganese complex oxide with a lamellar structure, the method including: (1) a step of preparing a starting source material for producing the complex oxide including a lithium supply source, a nickel supply source, a cobalt supply source, and a manganese supply source; (2) a step of pre-firing the starting source material by heating at a pre-firing temperature that has been set to a temperature lower than 800° C. and higher than a melting temperature of the lithium supply source; and (3) a step of firing the pre-fired material obtained in the pre-firing step by raising a temperature to a temperature range higher than the pre-firing temperature.

Подробнее
Номер записи: 84
04-10-2012 дата публикации

Lithium secondary battery and manufacturing method therefor

Номер: US20120251878A1
Автор: Hiroe Takenaka, Koji Takahata, Mariko Sumi, Masaya Takahashi, Mika Okubo, Tomoyoshi Ueki
Принадлежит: Toyota Motor Corp

The lithium secondary battery provided by the present invention includes a negative electrode having a negative electrode collector and a negative electrode layer including a negative electrode active material and formed on the surface of the negative electrode collector, and is characterized in that the negative electrode layer comprises a negative electrode active material layer composed primarily of a negative electrode active material, and an insulating layer composed primarily of an insulating filler and formed on the negative electrode active material layer, and the ratio (Sb/Sa) of a pore specific surface area of the insulating layer (Sb: m 2 /g) to a pore specific surface area of the negative electrode active material layer (Sa: m 2 /g), as measured by a mercury porosimeter, satisfies the relationship 1.2≦(Sb/Sa)≦2.5.

Подробнее
Номер записи: 85
04-10-2012 дата публикации

Composite, electrode active material for secondary lithium battery including the composite, method of preparing the composite, anode for secondary lithium battery including the electrode active material, and secondary lithium battery including the anode

Номер: US20120251882A1
Автор: Chang-Ui Jeong, Hee-Young Chu, Jae-Hyuk Kim, Jong-Seo Choi, Myung-Hwan Jeong, Sung-Hwan Moon, Yury Matulevich
Принадлежит: Samsung SDI Co Ltd

A composite includes a compound selected from the group consisting of a lithium lanthanum zirconium oxide and a lithium lanthanum tantalum oxide; a lanthanum oxide; and an oxide selected from the group consisting of a lanthanum zirconium oxide and a lanthanum tantalum oxide. An electrode active material for a secondary lithium battery may include such composite. Methods of preparing the composite, an electrode for a secondary lithium battery including the electrode active material, and a secondary lithium battery including the electrode are disclosed.

Подробнее
Номер записи: 86
04-10-2012 дата публикации

Nonaqueous secondary battery and method of using the same

Номер: US20120251893A1
Автор: Fusaji Kita, Hideo Sakata, Kumiko Ishizuka
Принадлежит: Individual

A nonaqueous secondary battery having a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode contains, as an active material, a lithium-containing transition metal oxide containing a metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, the positive electrode mixture layer has a density of 3.5 g/cm 3 or larger, and the nonaqueous electrolyte contains a compound having two or more nitrile groups in the molecule

Подробнее
Номер записи: 87
11-10-2012 дата публикации

Anode active material, anode and lithium battery containing the same, and preparation method thereof

Номер: US20120258361A1
Автор: Deok-Hyun Kim, Jae-myung Kim, Kyu-Nam Joo, Tae-Sik Kim
Принадлежит: Samsung SDI Co Ltd

An anode active material. The anode active material includes a core including SiO x (0.5≦x≦1.7), and a coating layer formed on the core at least partially. The coating layer includes metal unreactive toward lithium.

Подробнее
Номер записи: 88
18-10-2012 дата публикации

Method for manufacturing positive electrode and power storage device

Номер: US20120260478A1
Автор: Kazutaka Kuriki
Принадлежит: Semiconductor Energy Laboratory Co Ltd

To suppress decomposition of lithium cobalt oxide and formation of a decomposition product. To suppress the reaction between oxygen in lithium cobalt oxide and a current collector. To obtain a power storage device having high charge and discharge capacity. In a method for manufacturing a power storage device, in forming a lithium cobalt oxide layer over a positive electrode current collector by a sputtering method using a target containing lithium cobalt oxide and a sputtering gas containing Ar, the positive electrode current collector is heated at a temperature at which c-axes of crystals of lithium cobalt oxide are aligned and cobalt oxide is not formed. The heating temperature of the positive electrode current collector is higher than or equal to 400° C. and lower than 600° C.

Подробнее
Номер записи: 89
18-10-2012 дата публикации

Composite particles for electrochemical element electrode

Номер: US20120264014A1
Автор: Fumiaki Tsuchiya, Mayumi Fukumine
Принадлежит: Individual

The present invention provides a method of producing a composite particle for high density electrochemical element electrodes in electrochemical elements having low internal resistance and high capacitance. Slurry containing an electric conductive material and a binder is obtained, and the slurry is sprayed to a fluidized electrode active material to carry out fluidized-granulation, and further particles obtained by the fluidized-granulation are rolling-fluidized granulated, and thereby, composite particle for electrochemical element electrode, containing electrode active materials, electric conductive materials, and binders, and being structured of an outer layer portion (outer shell portion) and an inner layer portion (core portion) are obtained.

Подробнее
Номер записи: 90
18-10-2012 дата публикации

Anode Active Material For Lithium Secondary Battery And Lithium Secondary Battery Having The Same

Номер: US20120264015A1
Автор: Dong-Sub Jung, Hye-Min Ji, Je-Young Kim, Ki-Tae Kim
Принадлежит: LG Chem Ltd

An anode active material for a lithium secondary battery and a lithium secondary battery having the same are disclosed. The anode active material for a lithium secondary battery includes a silicon alloy consisting of silicon and at least two kinds of metals other than silicon, each having the heat of mixing with the silicon of −23 kJ/mol or less. The anode active material for a lithium secondary battery has a high capacity, and thus, is useful in fabricating a high-capacity lithium secondary battery. Also, the anode active material for a lithium secondary battery has a small crystal size of a silicon phase and consequently a small change in volume during charging/discharging, and thus, ensures excellent cycle life characteristics in applications to batteries.

Подробнее
Номер записи: 91
18-10-2012 дата публикации

Electrode for electrochemical device and method for producing the same

Номер: US20120264022A1
Автор: Akihisa Hosoe, Hajime Ota, Hideaki Sakaida, Junichi Nishimura, Kazuki Okuno, Kengo Goto, Koutarou Kimura
Принадлежит: Sumitomo Electric Industries Ltd, Sumitomo Electric Toyama Co Ltd

Provided is electrochemical device, such as a nonaqueous electrolyte battery, which has excellent discharge characteristics and the like by forming a thick electrode using a metal porous body, such as an aluminum porous body, as a current collector. An electrode for an electrochemical device includes a metal porous body filled with an active material, in which the metal porous body is sheet-like and is a stacked porous body in which a plurality of single-layer metal porous bodies are stacked and electrically connected to each other. The metal porous body may be an aluminum porous body having a three-dimensional network structure.

Подробнее
Номер записи: 92
25-10-2012 дата публикации

Nonaqueous electrolyte secondary battery

Номер: US20120270105A1
Автор: Masaki Hasegawa, Natsumi Goto, Takashi Takeuchi
Принадлежит: Panasonic Corp

A nonaqueous electrolyte secondary battery disclosed in the present application includes: a positive electrode capable of absorbing and releasing lithium, containing a positive electrode active material composed of a lithium-containing transition metal oxide having a layered crystalline structure; and a negative electrode capable of absorbing and releasing lithium, containing a negative electrode active material composed of a lithium-containing transition metal oxide obtained by substituting some of Ti element of a lithium-containing titanium oxide having a spinel crystalline structure with one or more element different from Ti, wherein a retention of the negative electrode is set to be greater than a retention of the positive electrode, and an irreversible capacity rate of the negative electrode is set to be greater than an irreversible capacity rate of the positive electrode, whereby a discharge ends by negative electrode limitation.

Подробнее
Номер записи: 93
25-10-2012 дата публикации

Lithium ion battery and method for manufacturing of such battery

Номер: US20120270114A1
Автор: Glyn Jeremy Reynolds, Robert MAMAZZA, Jr.
Принадлежит: Oerlikon Balzers AG

The present invention provides an electrochemical cell comprising an anodic current collector in contact with an anode. A cathodic current collector is in contact with a cathode. A solid electrolyte thin-film separates the anode and the cathode.

Подробнее
Номер записи: 94
01-11-2012 дата публикации

Cell

Номер: US20120276443A1
Автор: Kazuhito Hatta, Mashio Shibuya
Принадлежит: Sony Corp

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.

Подробнее
Номер записи: 95
08-11-2012 дата публикации

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

Номер: US20120282526A1
Автор: Naoto Yasuda, Ryota Isomura
Принадлежит: Toyota Industries Corp

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.

Подробнее
Номер записи: 96
15-11-2012 дата публикации

Method for preparing lithium manganese oxide positive active material for lithium ion secondary battery, positive active material prepared thereby, and lithium ion secondary battery including the same

Номер: US20120288767A1
Автор: Hae In Cho, Mi Sun Lee, Sung Nim Jo
Принадлежит: Samsung Corning Precision Materials Co Ltd

A method for preparing a lithium manganese oxide positive active material for a lithium ion secondary battery, which has spherical spinel-type lithium manganese oxide particles having two or more different types of sizes, the method including uniformly mixing manganese oxide having two or more different types of sizes with a lithium containing compound, and heat treating the resultant mixture to obtain lithium manganese oxide.

Подробнее
Номер записи: 97
22-11-2012 дата публикации

Electrode assembly and lithium rechargeable battery using the same

Номер: US20120295145A1
Автор: Hyoung Su Kim, Jong Ku Kim
Принадлежит: Samsung SDI Co Ltd

An electrode assembly comprising an electrode tab or an electrode plate substrate which has an identification mark formed thereon and a lithium rechargeable battery using the same are disclosed. This identification mark makes it possible to easily check the record of the manufacturing processes of the battery, including production equipment, production date, line operators, and production lines when a battery malfunctions. This identification mark may prevent a replica of the defective component from being manufactured.

Подробнее
Номер записи: 98
22-11-2012 дата публикации

Positive electrode material for a lithium-ion accumulator

Номер: US20120295162A1
Автор: Christian Jordy, Evgeniya T. Devyatkina, Georges Caillon, Nina V. Kosova, Stephane Levasseur, Thierry Hezeque
Принадлежит: SAFT Societe des Accumulateurs Fixes et de Traction SA, Umicore NV SA

A compound of formula Li a+y (M 1 (1−t) Mo t ) 2 M 2 b (O 1−x F 2x ) c wherein: M 1 is selected from the group consisting in Ni, Mn, Co, Fe, V or a mixture thereof; M 2 is selected from the group consisting in B, Al, Si, P, Ti, Mo; with 4≦a≦6; 0<b≦1.8; 3.8≦c≦14; 0≦x<1; −0.5≦y≦0.5; 0≦t≦0.9; b/a<0.45; the coefficient c satisfying one of the following relationships: c=4+y/2+z+2t+1.5b if M 2 is selected from B and Al; c=4+y/2+z+2t+2b if M 2 is selected from Si, Ti and Mo; c=4+y/2+z+2t+2.5b if M 2 is P; with z=0 if M 1 is selected from Ni, Mn, Co, Fe and z=1 if M 1 is V.

Подробнее
Номер записи: 99
22-11-2012 дата публикации

Method for producing lithium ion secondary battery

Номер: US20120295164A1
Автор: Hiroki Nagai, Tomohiro Nakano
Принадлежит: Toyota Motor Corp

The method for producing a lithium ion secondary battery includes: selecting a positive electrode sheet, negative electrode sheet, and separator sheet; constructing an electrode assembly by superimposing the selected sheets; and housing the above electrode assembly in a battery case along with an electrolyte solution. In the method, at least one of the sheets is selected such that it satisfies the relationship 0.8<a/b<1.5 where a and b represent the slopes of straight lines respectively that are determined in tests under the respective conditions of (1) a high-rate loading-unloading cycle and (2) a low-rate loading-unloading cycle.

Подробнее
Номер записи: 100