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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

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Мониторинг СМИ

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

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Применить Всего найдено 67. Отображено 67.
03-11-2022 дата публикации

리튬 금속 산화물의 제조 방법 및 리튬 이차 전지의 제조 방법

Номер: KR102463492B1
Автор: 노미정, 김직수, 한국현
Принадлежит: 에스케이온 주식회사

... 리튬 금속 산화물의 제조 방법에 있어서, 예비 리튬 금속 산화물을 준비한다. 예비 리튬 금속 산화물을 유기 용매 및 다가 카르복실산 화합물을 포함하는 유기 세정액을 이용해 세척하여 리튬염 불순물을 제거한다. 다가 카르복실산 화합물의 서로 다른 이웃하는 카르복실산 그룹들에 속한 산소 원자들 사이의 최단 거리가 220pm 이상이며 리튬염 불순물이 효과적으로 포획되어 제거될 수 있다.

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26-01-2012 дата публикации

METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL PRECURSOR IN LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL PRECURSOR IN LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY, AND METHOD FOR PREPARING LITHIUM METAL COMPOSITE OXIDE USING THE ANODE ACTIVE MATERIAL PRECURSOR AND LITHIUM METAL COMPOSITE OXIDE FOR ANODE ACTIVE MATERIAL IN LITHIUM SECONDARY BATTERY PREPARED THEREBY

Номер: WO2012011760A3
Принадлежит:

The present invention provides a method for manufacturing a anode active material precursor in a lithium secondary battery, comprising the following steps: (a) preparing a nickel cobalt composite oxide by coprecipitation by mixing with a solution a mixed metal solution, which comprises compounds including nickel and compounds including cobalt, an ammonia aqueous solution as a complexing agent, and an alkaline aqueous solution which provides a hydroxyl group as a pH controlling agent; (b) introducing a metal element M to the nickel cobalt composite oxide prepared from the step (a), wherein the anode active material precursor in the lithium secondary battery is represented by Chemical Formula 1 below, and wherein the lithium metal composite oxide for the anode active material in the lithium secondary battery is represented by Chemical Formula 2 below. [Chemical Formula 1] [Ni1-y-zCoyMz](OH)2 (where in the Chemical Formula 1, M is a group 13 metal element and is one or a combination of two ...

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22-09-2022 дата публикации

리튬 이차 전지용 양극 활물질 및 이의 제조 방법

Номер: KR20220128923A
Принадлежит:

... 예시적인 실시예들에 따른 이차 전지용 양극 활물질은 복수의 1차 입자들이 응집된 2차 입자 구조를 갖는 리튬 금속 산화물 입자, 상기 리튬 금속 산화물 입자 표면의 적어도 일부 상에 형성되며 제1 금속을 포함하는 제1 코팅부, 및 상기 1차 입자들의 계면의 적어도 일부에 형성되며 제2 금속을 포함하는 제2 코팅부를 포함할 수 있다.

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02-04-2024 дата публикации

리튬 이차 전지용 양극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지

Номер: KR102654264B1
Автор: 노미정, 김직수, 한국현
Принадлежит: 에스케이온 주식회사

... 본 발명의 실시예들의 리튬 이차 전지용 양극 활물질은 코어부 및 쉘부를 포함하며 니켈(Ni), 코발트(Co) 및 망간(Mn)을 함유하는 리튬 금속 산화물 입자를 포함한다. 리튬 금속 산화물 입자의 전체 Ni 함량은 Ni, Co 및 Mn의 100몰% 에 대하여 70몰% 이상이다. 쉘부는 리튬 금속 산화물 입자의 표면으로부터 10 내지 100nm 범위의 깊이 영역을 포함하며, 상기 깊이 영역에서의 Co 함량은 코어부의 Co 함량 대비 1.4 내지 6배이다. 고함량 Co 표면 처리를 통해 리튬 이차 전지의 안정성이 향상될 수 있다.

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11-02-2016 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2016021791A1
Принадлежит:

The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery comprising the same and, more specifically, to a positive electrode active material for a lithium secondary battery and a lithium secondary battery comprising the same, wherein a lithium ion diffusion path in a primary particle is formed with directivity toward the center of the particle. The positive electrode active material for a lithium secondary battery of the present invention has a lithium ion diffusion path showing particular directivity within primary and secondary particles, and thus exhibits a high conduction velocity of lithium ions, high lithium ion conductivity, and improved cycle characteristics since the crystalline structure does not collapse in spite of repeated charging and discharging.

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07-07-2011 дата публикации

LITHIUM COMPOSITE OXIDE AND A PRODUCTION METHOD THEREFOR

Номер: KR2011081422A2
Принадлежит:

The present invention relates to a lithium composite oxide for use as an anode active material for a rechargeable lithium battery and to a production method therefor, and more specifically relates to an anode active material for a rechargeable lithium battery, comprising a lithium composite oxide in which a dry coating method is used in order to coat oxide particles of at least one type selected from SiO2, SnO2, Al2O3, TiO2, MgO, Fe2O3, Bi2O3, Sb2O3 and ZrO2 onto the surface of a lithium-nickel composite oxide represented by Chemical formula 1 below, and relates to a production method for the lithium composite oxide. [Chemical formula 1] LixNi1-y-zCoyMzO2 (where 0.98=x=1.1, 0.05=y=0.2, 0.05=z=0.2, and M is at least one type of metal element selected from the group consisting of Al, Zn, Ti, V, Cr, Mn, Fe and Y) ...

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15-12-2015 дата публикации

Positive electrode active material with improved energy density

Номер: KR0101577180B1
Принадлежит: 주식회사 에코프로

... 본 발명은 혼합 양극활물질에 관한 것으로서, 더욱 상세하게는 고에너지 밀도를 나타내도록 혼합된 양극활물질에 관한 것이다. 본 발명에 의한 혼합 양극활물질은 에너지 밀도가 높은 농도구배부를 포함하는 양극활물질과 상대적으로 안정성이 높은 층상구조의 리튬니켈코발트망간 복합 산화물을 입경을 조절하면서 혼합함으로써 높은 에너지 밀도를 나타내면서도 높은 안정성을 나타낸다.

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23-08-2022 дата публикации

리튬 이차 전지용 양극 활물질 및 이의 제조방법

Номер: KR20220116954A
Принадлежит:

... 본 발명의 예시적인 실시예들에 따른 리튬 이차 전지용 양극 활물질은 리튬 금속 산화물 입자 코어부 및 황원자를 함유한 작용기를 포함하는 유기계 화합물 코팅층을 포함한다. 상기 양극 활물질은 리튬 금속 산화물 입자의 층상 구조의 안정성을 유지하면서 전해액과의 부반응이 억제될 수 있으며, 양극 제조 시 슬러리의 겔화 현상이 억제되고, 리튬 이차 전지의 고에너지, 고출력 및 장수명 특성이 유지될 수 있다.

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09-07-2015 дата публикации

MIXED POSITIVE ELECTRODE ACTIVE MATERIAL WITH HIGH ENERGY DENSITY

Номер: KR1020150080390A
Принадлежит:

The present invention relates to a mixed positive electrode active material and, more specifically, to a mixed positive electrode active material so as to display high energy density. According to the present invention, a mixed positive electrode active material mixes a positive electrode active material comprising a concentration gradient unit with high energy density and a lithium-nickel-cobalt-manganese composite oxide having a layer structure with relatively high stability as controlling the particle size, thereby displaying high energy density and high stability. COPYRIGHT KIPO 2015 (AA) Comparative example 1 (BB) Example 1 (CC) Example 2 (DD) Example 3 (EE) Example 4 (FF) Comparative example 6 ...

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25-01-2021 дата публикации

CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY LITHIUM SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SAME

Номер: KR102207997B1

The present invention relates to a positive electrode active material for a lithium secondary battery, comprising: lithium composite oxide: a first coating portion formed on a surface of the lithium composite oxide and containing aluminum; and a second coating portion formed on the first coating portion and containing boron. More specifically, the present invention relates to a positive electrode active material for a lithium secondary battery capable of improving stability and electrical properties of the secondary battery.

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06-12-2018 дата публикации

분산 처리를 이용한 핵산 서열의 분석 방법 및 장치, 핵산 서열 분석을 위한 분산 처리 시스템

Номер: KR0101906970B1
Принадлежит: 삼성전자주식회사

... 핵산 서열을 분석하는 방법 및 장치는 샘플로부터 생성된 핵산에 대한 입력 서열들을 복수의 노드들 각각에 분산시켜 전송하여 목표 서열들에 입력 서열들을 정렬하는 작업을 분산 처리하고, 노드들 각각에서 수신된 분산 처리 결과들을 병합하여 분석한다.

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26-01-2012 дата публикации

METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY AND LITHIUM SECONDARY BATTERY USING SAME

Номер: WO2012011785A3
Принадлежит:

The present invention provides a method for manufacturing anode active material for a lithium secondary battery and anode active material for a lithium secondary battery manufactured thereby, comprising the following steps: a) simultaneously mixing in a reactor a first metallic salt aqueous solution including nickel, cobalt, manganese, and selectively a transition metal, a chelating agent, and a basic aqueous solution, and mixing and firing with a lithium raw material for manufacturing a core portion including the compound of Chemical Formula 1 below [Chemical Formula 1] Lix1[Ni1-y1-z1-w1Coy1Mnz1Mw1]O2 (where, in the above formula, 0.9≤x1≤1.3, 0.1≤y1≤0.3, 0.0≤z1≤0.3, 0≤w1≤0.1, and M is at least one metal selected from Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In, Cr, Ge, and Sn); b) simultaneously mixing in a reactor a second metallic salt aqueous solution including nickel, cobalt, manganese, and selectively a transition metal, the chelating agent, and the basic aqueous solution, mixing and ...

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20-02-2020 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: WO2020036396A1
Принадлежит:

A positive electrode active material for a lithium secondary battery according to embodiments of the present invention includes lithium metal oxide particles each comprising a core portion and a shell portion and containing nickel (Ni), cobalt (Co), and manganese (Mn). The total Ni content in the lithium metal oxide particles is 70 mol% or more with respect to 100 mol% of Ni, Co, and Mn. The shell portion includes a depth region in the range of 10-100 nm from the surface of the lithium metal oxide particle, and the Co content in the depth region is 1.4 to 6 times the Co content in the core portion. The stability of a lithium secondary battery can be improved through a high Co content surface treatment.

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11-11-2015 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: KR101568263B1
Принадлежит: ECOPRO CO., LTD.

The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same wherein, more particularly, a lithium ion diffusion path is formed in a first particle in a center direction of a first particle to have directionality. The positive electrode active material for a lithium secondary battery includes the lithium ion diffusion path which exhibits certain directionality in the first particle or a second particle. Therefore, the positive electrode active material has a high speed of lithium ion conduction and high lithium ion conductivity. In addition, cycle properties of the lithium secondary battery are enhanced as a crystal structure of the positive electrode material is not easily destroyed even when the lithium secondary battery is repeatedly charged and discharged. COPYRIGHT KIPO 2016 ...

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12-03-2025 дата публикации

리튬 이차 전지용 양극 활물질 및 이의 제조방법

Номер: KR102781582B1
Принадлежит: 에스케이온 주식회사

... 예비 리튬 금속 산화물 입자를 준비한다. 예비 리튬 금속 산화물을 붕소 화합물 세정 용액을 사용하여 세정 처리하여 리튬 이차 전지용 양극 활물질을 제조할 수 있다. 리튬 이차 전지용 양극 활물질은 TOF-SIMS에 의한 Li+, B+, LiB+ 파편들의 피크 강도의 총합 중 B+의 피크 강도의 비율은 0.03 내지 1.5%인 리튬 금속 산화물을 포함한다.

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10-11-2015 дата публикации

MANUFACURING METHOD OF CATHODE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERY, AND CATHODE ACTIVE MATERIAL MADE BY THE SAME

Номер: KR0101567039B1
Принадлежит: 주식회사 에코프로

... 본 발명은 리튬 이차 전지용 양극활물질의 제조 방법 및 이에 의하여 제조된 리튬 이차 전지용 양극활물질에 관한 것으로서, 더욱 상세하게는 수세공정 및 금속 코팅을 도입하여 양극활물질 미반응 리튬의 양을 감소시키고, 수세시 열화되는 특성을 개선하여 니켈 리치(Ni rich) 양극활물질의 경우에도 표면 미반응 리튬 이온의 양을 감소시키면서도 고용량 및 안정성을 확보한 리튬 이차 전지용 양극활물질의 제조 방법 및 이에 의하여 제조된 리튬 이차 전지용 양극활물질에 관한 것이다.

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07-08-2015 дата публикации

METHOD FOR PRODUCING LITHIUM COMPOSITE OXIDE AND LITHIUM COMPOSITE OXIDE PRODUCED BY SAME METHOD

Номер: KR1020150091026A
Принадлежит:

The present invention relates to a method for producing a lithium composite oxide and a lithium composite oxide produced by the same. More specifically, the method for producing a lithium composite oxide includes the steps of: producing a transition metal precursor; mixing the transition metal precursor with a lithium compound; and plasticizing the mixture. The step of plasticizing the mixture includes a temperature rising section, a first temperature maintaining section, a second temperature maintaining section, and a cooling section. In the second temperature maintaining section, the mixture is plasticized in an atmosphere containing 20-99 volume% of oxygen. COPYRIGHT KIPO 2015 ...

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03-10-2019 дата публикации

CATHODE ACTIVE MATERIAL PRECURSOR AND LITHIUM SECONDARY BATTERY UTILIZING SAME

Номер: WO2019190217A1
Принадлежит:

A cathode active material precursor according to embodiments of the present invention comprises nickel (Ni) and cobalt (Co), the nickel being contained at an excessive amount, wherein the ratio of the area (A101) of the (101) plane peak to the area ((A001) of the (001) plane peak, A101/A001, according to X-ray diffraction analysis is 1 or greater. The cathode active material precursor can be used to attain a cathode and a lithium secondary battery, which are excellent in the degree of crystallization and long-term stability.

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06-10-2015 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: KR101555594B1
Принадлежит: ECOPRO CO., LTD.

The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same. More particularly, the positive electrode active material for a lithium secondary battery includes a concentration gradient layer of which the thickness is adjusted and a surface layer on an outermost portion of a core layer of a positive electrode active material having a layered structure and also includes lithium ion diffusion paths, which are formed to have directionality in a certain direction, in first particles and second particles. COPYRIGHT KIPO 2016 (AA) Example 1 (BB) Example 2 (CC) Example 3 (DD) Example 4 (EE) Example 5 (FF) Example 6 (GG) Comparative example 1 ...

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03-07-2014 дата публикации

METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY PRODUCED THEREBY

Номер: WO2014104810A1
Принадлежит:

The present invention relates to a method for producing cathode active material and cathode active material produced thereby, and more specifically to a method for producing cathode active material in which the surface of the Li-Ni oxide, comprising Co and/or Mn, is covered with olivine-type composite oxide and conductive carbon, and to a cathode active material produced by the method. The cathode active material produced by the method for producing same according to the present invention suppresses side reactions on the surface by having the surface of the Li-Ni oxide, comprising Co and/or Mn, coated with olivine-type composite oxide and conductive carbon, and thus cathode active material is provided exhibiting high energy concentration and capacity, and having enhanced safety and life-span characteristics.

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07-07-2011 дата публикации

LITHIUM COMPOSITE OXIDE AND A PRODUCTION METHOD THEREFOR

Номер: WO2011081422A3
Принадлежит:

The present invention relates to a lithium composite oxide for use as an anode active material for a rechargeable lithium battery and to a production method therefor, and more specifically relates to an anode active material for a rechargeable lithium battery, comprising a lithium composite oxide in which a dry coating method is used in order to coat oxide particles of at least one type selected from SiO2, SnO2, Al2O3, TiO2, MgO, Fe2O3, Bi2O3, Sb2O3 and ZrO2 onto the surface of a lithium-nickel composite oxide represented by Chemical formula 1 below, and relates to a production method for the lithium composite oxide. [Chemical formula 1] LixNi1-y-zCoyMzO2 (where 0.98=x=1.1, 0.05=y=0.2, 0.05=z=0.2, and M is at least one type of metal element selected from the group consisting of Al, Zn, Ti, V, Cr, Mn, Fe and Y) ...

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26-01-2012 дата публикации

METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL PRECURSOR IN LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL PRECURSOR IN LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY, AND METHOD FOR PREPARING LITHIUM METAL COMPOSITE OXIDE USING THE ANODE ACTIVE MATERIAL PRECURSOR AND LITHIUM METAL COMPOSITE OXIDE FOR ANODE ACTIVE MATERIAL IN LITHIUM SECONDARY BATTERY PREPARED THEREBY

Номер: KR2012011760A2
Принадлежит:

The present invention provides a method for manufacturing a anode active material precursor in a lithium secondary battery, comprising the following steps: (a) preparing a nickel cobalt composite oxide by coprecipitation by mixing with a solution a mixed metal solution, which comprises compounds including nickel and compounds including cobalt, an ammonia aqueous solution as a complexing agent, and an alkaline aqueous solution which provides a hydroxyl group as a pH controlling agent; (b) introducing a metal element M to the nickel cobalt composite oxide prepared from the step (a), wherein the anode active material precursor in the lithium secondary battery is represented by Chemical Formula 1 below, and wherein the lithium metal composite oxide for the anode active material in the lithium secondary battery is represented by Chemical Formula 2 below. [Chemical Formula 1] [Ni1-y-zCoyMz](OH)2 (where in the Chemical Formula 1, M is a group 13 metal element and is one or a combination of two ...

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10-06-2016 дата публикации

APPARATUS FOR ALLOCATING RESOURCES, OPERATING METHOD THEREOF, AND PROGRAM APPLIED THERETO

Номер: KR1020160066417A
Принадлежит:

Disclosed are an apparatus for allocating resources, an operating method thereof, and a program applied thereto. When a plurality of users want to share two or more resources, cores provided by the two or more resources are allocated to the users in accordance with a level of familiarity, designated by the users, in the two or more resources. Accordingly, heterogeneous computing resources may be effectively allocated to the users in a heterogeneous computing environment. COPYRIGHT KIPO 2016 (AA) Start (BB) End (S110) Determining an assignment allowance number (S120) Checking a priority order of the level of closeness (S130) Designating the identical priority order of the level of closeness (S140) Dividing the number of cores (S150) Assigning the number of the assignment allowance number? (S160) Assigning cores as many as the residual assigned allowance number (S170) Assigning the number of cores provided in a resource (S180) Number of the residual assignment allowance?

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29-12-2016 дата публикации

FILE MANAGEMENT DEVICE AND OPERATION METHOD THEREOF

Номер: KR101691112B1

According to the present invention, an SSD is selectively applied to multiple directories for storing an input file and enables different sizes of files to be stored by specifying the number of stripes in each directory differently, thereby improving the performance of a parallel file system. The present invention includes: a confirming unit for confirming multiple directories; and a control unit for storing a file with a constant size or smaller in the directory. COPYRIGHT KIPO 2017 (100) File management device (110) Designation unit (120) Check unit (130) Control unit (140) Storage unit ...

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12-03-2025 дата публикации

리튬 이차 전지용 양극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지

Номер: KR102781543B1
Автор: 노미정, 김직수, 한국현
Принадлежит: 에스케이온 주식회사

... 본 발명의 실시예들의 리튬 이차 전지용 양극 활물질은 코어부 및 쉘부를 포함하며 니켈(Ni), 코발트(Co) 및 망간(Mn)을 함유하는 리튬 금속 산화물 입자를 포함한다. 리튬 금속 산화물 입자의 전체 Ni 함량은 Ni, Co 및 Mn의 100몰% 에 대하여 70몰% 이상이다. 쉘부는 리튬 금속 산화물 입자의 표면으로부터 10 내지 100nm 범위의 깊이 영역을 포함하며, 상기 깊이 영역에서의 Co 함량은 코어부의 Co 함량 대비 1.4 내지 6배이다. 고함량 Co 표면 처리를 통해 리튬 이차 전지의 안정성이 향상될 수 있다.

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03-07-2014 дата публикации

METHOD FOR PRODUCING CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY PRODUDED THEREBY

Номер: WO2014104811A1
Принадлежит:

The present invention relates to a lithium composite oxide for lithium secondary battery, and more specifically, to a cathode active material having high thermal stability and efficiency characteristics obtained by controlling the concentration of manganese in the inner core and outer bulk area, manganese being a lithium transition metal oxide having a concentration gradient.

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16-09-2010 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2010104346A3
Принадлежит:

The present invention relates to a positive electrode active material for a lithium secondary battery, and to a lithium secondary battery comprising same. More particularly, the present invention relates to a positive electrode active material for a lithium secondary battery in which a lithium composite oxide having a composition of LiNi1-xMxO2 (wherein, M represents one or a combination of two elements selected from Co, Al, Mn, Mg, Fe, Cu, Ti, Sn, and Cr, and wherein 0.96 ≤ x ≤ 1.05) is surface-modified using a carbon or organic compounds, to thereby achieve improved stability and improved efficiency at a high rate as compared to conventional positive electrode active materials. The present invention also relates to the lithium secondary battery comprising said positive electrode active material.

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26-01-2012 дата публикации

METHOD FOR MANUFACTURING ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY MANUFACTURED THEREBY AND LITHIUM SECONDARY BATTERY USING SAME

Номер: KR2012011785A2
Принадлежит:

The present invention provides a method for manufacturing anode active material for a lithium secondary battery and anode active material for a lithium secondary battery manufactured thereby, comprising the following steps: a) simultaneously mixing in a reactor a first metallic salt aqueous solution including nickel, cobalt, manganese, and selectively a transition metal, a chelating agent, and a basic aqueous solution, and mixing and firing with a lithium raw material for manufacturing a core portion including the compound of Chemical Formula 1 below [Chemical Formula 1] Lix1[Ni1-y1-z1-w1Coy1Mnz1Mw1]O2 (where, in the above formula, 0.9≤x1≤1.3, 0.1≤y1≤0.3, 0.0≤z1≤0.3, 0≤w1≤0.1, and M is at least one metal selected from Mg, Zn, Ca, Sr, Cu, Zr, P, Fe, Al, Ga, In, Cr, Ge, and Sn); b) simultaneously mixing in a reactor a second metallic salt aqueous solution including nickel, cobalt, manganese, and selectively a transition metal, the chelating agent, and the basic aqueous solution, mixing and ...

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09-07-2015 дата публикации

MANUFACTURING METHOD OF LITHIUM NICKEL OXIDE-OVERLITHIATED MANGANESE OXIDE COMPOSITE AND LITHIUM NICKEL OXIDE-OVERLITHIATED MANGANESE OXIDE COMPOSITE MANUFACTURED THEREBY

Номер: KR1020150080096A
Принадлежит:

The present invention relates to a manufacturing method of a lithium nickel oxide-over lithiated manganese oxide composite and a lithium nickel oxide-over lithiated manganese oxide composite manufactured thereby and, more specifically, to a manufacturing method of a lithium nickel oxide-over lithiated manganese oxide composite and a lithium nickel oxide-over lithiated manganese oxide composite manufactured thereby, which represents excellent stability and long durability at room temperature and high temperatures even if charging and discharging are repeated with high current. According to the present invention, a manufacturing method of a lithium nickel oxide-over lithiated manganese oxide composite is not a simple mixing of a lithium nickel oxide and an over lithiated manganese oxide, but representing excellent properties of stability and long durability as a composite granulated by crushing, spray drying, and heat treating after mixing with high energy density and high power in a short ...

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28-10-2016 дата публикации

NEGATIVE ELECTRODE ACTIVE MATERIAL HAVING HIGH ENERGY DENSITY, AND LITHIUM ION SECONDARY BATTERY COMPRISING SAME

Номер: KR1020160124429A
Принадлежит:

The present invention relates to a negative electrode active material having high energy density and a lithium ion secondary battery comprising the same. According to the present invention, provided is the negative electrode active material for a lithium ion secondary battery, comprising a composite including a lithium metal oxide, represented by chemical formula 1: Li_(1+x)M_(1-x)O_2, wherein -0.05 <= x <= 0.3, and M is one or more selected from the group consisting of V, Fe, Co, Ni, Mn, Cr, Al, Mg, Ti and Mo, and carbon, wherein the composite is a composite in which the lithium metal oxide and dispersed carbon, or the lithium metal oxide are dispersed throughout matrix carbon. In the negative electrode active material for a lithium ion secondary battery according to the present invention, implemented is the composite including Li_(1+x)M_(1-x)O_2, wherein -0.05 <= x <= 0.3, and M is one or more selected from the group consisting of V, Fe, Co, Ni, Mn, Cr, Al, Mg, Ti, and Mo, i.e., a lithium ...

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06-04-2023 дата публикации

리튬 이차 전지용 양극 활물질 및 이를 포함하는 리튬 이차 전지

Номер: KR20230046771A
Принадлежит:

... 본 발명의 실시예들에 따른 리튬 이차 전지용 양극 활물질은 1차 입자들이 응집된 2차 입자 구조를 갖는 리튬-니켈 복합금속 산화물 입자를 포함한다. 리튬-니켈 복합금속 산화물 입자는 B, Al, Si, Ti, V, Mn, Fe, Co, Cu, Zn, Zr, Mo 및 W으로 구성된 군으로부터 선택되는 적어도 하나의 원소를 포함하는 제1 원소, 및 이온 반경이 80pm 이상이고, 니켈 및 상기 제1 원소와 상이한 제2 원소를 함유한다. 제2 원소는 2차 입자의 외표면, 1차 입자들 사이의 입계 및 1차 입자들의 내부에 존재한다.

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07-07-2016 дата публикации

POSITIVE ACTIVE MATERIAL AND METHOD FOR PRODUCING SAME

Номер: WO2016108376A1
Принадлежит:

The present invention relates to a positive active material and a method for producing same and, more specifically, to a positive active material comprising LiAlO2 at the surface thereof as a result of reacting an Al compound with residual lithium and to a method for producing same.

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20-09-2012 дата публикации

MANUFACTURING METHOD FOR ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY MADE THEREBY

Номер: WO2012124970A2
Принадлежит:

The present invention relates to a method of manufacturing anode materials for lithium secondary batteries and the anode materials for lithium secondary batteries prepared thereby, and more specifically, relates to a method of manufacturing anode materials for lithium secondary batteries in which an additional salt is added by mixture to adjust the reactivity and the speed of reaction of the reacting solvent, and the anode materials for lithium secondary batteries thus prepared.

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27-02-2019 дата публикации

리튬 니켈 산화물과 리튬 망간 산화물의 복합체 제조 방법 및 이에 의하여 제조된 리튬 니켈 산화물과 리튬 망간 산화물의 복합체

Номер: KR0101952167B1
Принадлежит: 주식회사 에코프로비엠

... 본 발명은 리튬 니켈 산화물과 리튬 망간 산화물의 복합체 제조 방법 및 이에 의하여 제조된 리튬 니켈 산화물과 리튬 망간 산화물의 복합체에 관한 것으로서, 더욱 상세하게는 대전류로 충전과 방전을 반복하여도 상온 및 고온에서 긴 수명을 가지며 우수한 안전성을 나타내는 리튬 니켈 산화물과 리튬 망간 산화물의 복합체 제조 방법 및 이에 의하여 제조된 리튬 니켈 산화물과 리튬 망간 산화물의 복합체에 관한 것이다. 본 발명에 의한 리튬 니켈 산화물과 리튬 망간 산화물의 복합체 제조 방법은 리튬 니켈 산화물과 리튬 망간 산화물의 단순 혼합이 아니라, 혼합 후 분쇄하고 분무 건조 및 열처리에 의해 입자화한 복합체로서 높은 에너지 밀도와 단시간에 큰 출력을 발휘할 수 있을 뿐만 아니라, 우수한 안전성 및 장기 수명 특성을 나타낸다.

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09-07-2015 дата публикации

MIXED POSITIVE ELECTRODE ACTIVE MATERIAL DISPLAYING HIGH POWER AND LONG DURABILITY

Номер: KR1020150080149A
Принадлежит:

The present invention relates to a mixed positive electrode active material displaying high power and long durability. According to the present invention, a mixed positive electrode active material controls the particle size and mixes a nickel-cobalt-aluminum composite oxide with high energy density and a lithium-nickel-cobalt-manganese composite oxide with a layer structure with high stability, thereby displaying high energy density and high stability. COPYRIGHT KIPO 2015 (DD) Example 2-3 (EE) Example 2-4 (FF) Comparative example 2 (AA) Comparative example 1 (BB) Example 2-1 (CC) Example 2-2 ...

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20-09-2022 дата публикации

리튬 이차 전지용 양극 활물질 및 이의 제조방법

Номер: KR20220127506A
Принадлежит:

... 본 발명은 리튬 이차 전지용 양극 활물질 및 이의 제조방법에 관한 것이다. 예시적인 실시예들에 따른 리튬 이차 전지용 양극 활물질(이하, 양극 활물질로 약칭할 수 있다)은 리튬 금속 산화물 입자 및 수용성 폴리머를 포함하고, 상기 리튬 금속 산화물 입자와 상기 수용성 폴리머가 응집된 2차 입자 구조를 갖는 것일 수 있다.

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08-07-2016 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY WITH CONCENTRATION GRADIENT, METHOD FOR PRODUCING POSITIVE ELECTRODE ACTIVE MATERIAL, AND POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR FOR LITHIUM SECONDARY BATTERY WITH CONCENTRATION GRADIENT AND POSITIVE ELECTRODE ACTIVE MATERIAL PRODUCED THEREBY

Номер: KR1020160081452A
Принадлежит:

The present invention relates to a producing method of a positive electrode active material for a lithium secondary battery with a concentration gradient, and to a positive electrode active material for a lithium secondary battery with a concentration gradient produced thereby and, more specifically, to a producing method of a positive electrode active material for a lithium secondary battery with a concentration gradient, and to a positive electrode active material for a lithium secondary battery with a concentration gradient produced thereby. The method forms a barrier layer so as to maintain a concentration gradient layer even if generating heat diffusion by a heat treatment process. COPYRIGHT KIPO 2016 (AA) Embodiment-2 (BB) Embodiment-5 (CC) Comparative example-2 ...

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08-03-2016 дата публикации

MANUFACTURING METHOD OF CATHOD ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERY OF PREVENTING GELLING, AND CATHOD ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERY MADE BY THE SAME

Номер: KR0101598178B1
Принадлежит: 주식회사 에코프로

... 본 발명은 겔화 현상이 방지된 리튬 이차전지용 양극활물질의 제조 방법 및 이에 의하여 제조된 겔화 현상이 방지된 리튬 이차전지용 양극활물질에 관한 것이다. 본 발명에 의하여 제조한 전지는 전지 조립 후 충방전 시의 초기 방전 효율 및 고율에서의 전지 특성이 우수하며, 양극 활물질의 슬러리 제조 시 발생할 수 있는 겔화를 현저히 억제해 줌으로써, 극판의 제조가 용이해지고 또한 슬러리의 코팅 특성을 우수하게 해 주어 전지의 특성이 향상된다.

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03-01-2013 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL, ELECTRODE INCLUDING THE POSITIVE ELECTRODE ACTIVE MATERIAL, AND LITHIUM ELECTROCHEMICAL BATTERY

Номер: WO2013002457A1
Принадлежит:

The present invention relates to a positive electrode active material for a lithium battery, a method for manufacturing the positive electrode active material, and a lithium secondary battery using the positive electrode active material, and more particularly, to a positive electrode active material for a lithium battery having high capacity and superior thermal stability, a method for electrochemically activating the positive electrode active material, an electrode including the positive electrode active material, and a lithium electrochemical battery.

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22-02-2016 дата публикации

MANUFACTURING METHOD OF POSITIVE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERIES AND POSITIVE ACTIVE MATERIAL MADE BY THE SAME

Номер: KR0101595322B1
Принадлежит: 주식회사 에코프로

... 본 발명은 리튬 이차 전지용 양극 활물질의 제조 방법 및 이에 의하여 제조된 리튬 이차 전지용 양극 활물질에 관한 것이다. 본 발명에 의한 이차 전지용 양극 활물질의 제조 방법에 의하여 제조된 리튬 니켈 화합물은 수세를 통하여 양극 활물질 표면을 안정화하여 잔류 리튬을 감소시키면서도 수세 과정에서 열화되는 특성을 개선하는 효과를 나타낸다.

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03-01-2013 дата публикации

CATHODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY INCLUDING CATHODE ACTIVE MATERIAL, AND METHOD FOR ELECTROCHEMICALLY ACTIVATING LITHIUM SECONDARY BATTERY

Номер: WO2013002559A2
Принадлежит:

The present invention relates to a cathode active material, a lithium secondary battery including the cathode active material, and a method for electrochemically activating the lithium secondary battery, and more specifically to a cathode active material with high capacity and excellent thermal stability, a lithium secondary battery including the cathode active material, and a method for electrochemically activating the lithium secondary battery.

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16-09-2010 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR A LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2010104346A2
Принадлежит:

The present invention relates to a positive electrode active material for a lithium secondary battery, and to a lithium secondary battery comprising same. More particularly, the present invention relates to a positive electrode active material for a lithium secondary battery in which a lithium composite oxide having a composition of LiNi1-xMxO2 (wherein, M represents one or a combination of two elements selected from Co, Al, Mn, Mg, Fe, Cu, Ti, Sn, and Cr, and wherein 0.96 ≤ x ≤ 1.05) is surface-modified using a carbon or organic compounds, to thereby achieve improved stability and improved efficiency at a high rate as compared to conventional positive electrode active materials. The present invention also relates to the lithium secondary battery comprising said positive electrode active material.

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20-09-2012 дата публикации

MANUFACTURING METHOD FOR ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY AND ANODE MATERIAL FOR LITHIUM SECONDARY BATTERY MADE THEREBY

Номер: WO2012124970A3
Принадлежит:

The present invention relates to a method of manufacturing anode materials for lithium secondary batteries and the anode materials for lithium secondary batteries prepared thereby, and more specifically, relates to a method of manufacturing anode materials for lithium secondary batteries in which an additional salt is added by mixture to adjust the reactivity and the speed of reaction of the reacting solvent, and the anode materials for lithium secondary batteries thus prepared.

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07-07-2016 дата публикации

PRODUCING METHOD OF LITHIUM COMPLEX OXIDE, AND LITHIUM COMPLEX OXIDE PRODUCED BY PRODUCING METHOD

Номер: KR1020160080098A
Принадлежит:

The present invention relates to a producing method of a lithium complex oxide, and a lithium complex oxide produced by the producing method and, more specifically, to a producing method of a lithium complex oxide, comprising the steps of: producing a transition metal precursor; mixing a lithium compound with the transition metal precursor; and calcinating the compound, wherein the step of calcinating the compound consists of a temperature raising section, a first temperature maintaining section, a second temperature maintaining section, and a cooling section. The second temperature maintaining section is calcinated in an oxygen-containing atmosphere of 20 to 99 volume%. COPYRIGHT KIPO 2016 ...

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09-09-2015 дата публикации

MANUFACTURING METHOD OF POSITIVE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERIES AND POSITIVE ACTIVE MATERIAL MADE BY THE SAME

Номер: KR0101550741B1
Принадлежит: 주식회사 에코프로

... 본 발명은 2차 전지용 양극 활물질의 제조방법 및 이에 의하여 제조되는 2차 전지용 양극 활물질에 관한 것으로서, 더욱 상세하게는 활물질 제조 후 Mn 을 포함하는 수세 용액을 사용하여 수세하는 과정을 포함하는 2차 전지용 양극 활물질의 제조방법 및 이에 의하여 제조되는 2차 전지용 양극 활물질에 관한 것이다.

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03-07-2017 дата публикации

백라이트 유니트용 광확산 시트

Номер: KR0101752245B1
Принадлежит: 도레이첨단소재 주식회사

... 본 발명에서는 기재 필름; 및 상기 기재필름의 일면에 바인더 수지에 유기입자 및 무기입자가 조합되어 도포된 광확산층을 포함하는 것을 특징으로 하는 백라이트 유니트용 광확산 시트를 제공한다. 본 발명의 백라이트 유니트용 광확산 시트는 광확산층 상에 광확산입자로서 서로 다른 굴절률과 평균입경을 가진 유기 및 무기입자를 혼용하여 사용함으로써 빛의 굴절 및 회절특성을 최대화하여, 휘도가 높을 뿐만 아니라 광원에 대한 은폐특성이 우수하다.

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17-03-2016 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: WO2016039511A1
Принадлежит:

The present invention relates to a positive electrode active material for a lithium secondary battery, and a lithium secondary battery comprising the same and, more particularly, to a positive electrode active material for a lithium secondary battery, and a lithium secondary battery comprising the same, the positive electrode active material being characterized in that a lithium ion diffusion path within primary particles is formed with a specific directivity. The positive electrode active material for a lithium secondary battery according to the present invention has the following advantages due to the lithium ion diffusion path which exhibits directivity within primary particles and secondary particles: the conduction velocity of a lithium ion is fast; high lithium ion conductivity is exhibited; and cycle characteristics are improved since the crystal structure does not easily collapse in spite of repeated charging and discharging.

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28-02-2019 дата публикации

농도 구배를 나타내는 리튬 이차전지용 양극활물질 전구체 및 양극활물질을 제조하는 방법, 및 이에 의하여 제조된 농도 구배를 나타내는 리튬 이차전지용 양극활물질 전구체 및 양극활물질

Номер: KR0101953155B1
Принадлежит: 주식회사 에코프로비엠

... 본 발명은 농도 구배를 나타내는 리튬 이차전지용 양극활물질의 제조 방법 및 이에 의하여 제조된 농도 구배를 나타내는 리튬 이차전지용 양극활물질에 관한 것으로서, 더욱 상세하게는 이후 열처리 과정에 의한 열확산이 일어나더라도 농도 구배층이 유지될 수 있도록 장벽층을 형성하는 것을 특징으로 하는 농도 구배를 나타내는 리튬 이차전지용 양극활물질의 제조 방법 및 이에 의하여 제조된 농도 구배를 나타내는 리튬 이차전지용 양극활물질에 관한 것이다.

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07-07-2011 дата публикации

LITHIUM COMPOSITE OXIDE AND A PRODUCTION METHOD THEREFOR

Номер: KR2011081422A9
Принадлежит:

The present invention relates to a lithium composite oxide for use as an anode active material for a rechargeable lithium battery and to a production method therefor, and more specifically relates to an anode active material for a rechargeable lithium battery, comprising a lithium composite oxide in which a dry coating method is used in order to coat oxide particles of at least one type selected from SiO2, SnO2, Al2O3, TiO2, MgO, Fe2O3, Bi2O3, Sb2O3 and ZrO2 onto the surface of a lithium-nickel composite oxide represented by Chemical formula 1 below, and relates to a production method for the lithium composite oxide. [Chemical formula 1] LixNi1-y-zCoyMzO2 (where 0.98=x=1.1, 0.05=y=0.2, 0.05=z=0.2, and M is at least one type of metal element selected from the group consisting of Al, Zn, Ti, V, Cr, Mn, Fe and Y) ...

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16-12-2015 дата публикации

ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Номер: KR101577179B1
Принадлежит: ECOPRO CO., LTD.

The present invention relates to an anode active material for a lithium secondary battery and a lithium secondary battery comprising the same and, more specifically, to an anode active material for a lithium secondary battery and a lithium secondary battery comprising the same, wherein a lithium ion diffusion path in a primary particle has specific directivity. According to the anode active material for a lithium secondary battery in accordance with the present invention, since the lithium ion diffusion path has the directivity in the primary particle and a secondary particle, the conduction velocity of lithium ions is high, lithium ion conductivity is high, and a crystalline structure does not easily collapse even when charging and discharging are repeated, thereby improving cycle characteristics. COPYRIGHT KIPO 2016 (AA) Example 1 (BB) Example 2 (CC) Example 3 (DD) Example 4 (EE) Example 5 (FF) Example 6 (GG) Comparative example 1 (HH) Comparative example 2 ...

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09-07-2015 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY CAPABLE OF PREVENTING GELATION AND PREPARATION METHOD THEREOF

Номер: KR1020150080394A
Принадлежит:

The present invention relates to a positive electrode active material for a lithium secondary battery capable of preventing the gelation and a preparation method thereof. According to the present invention, the battery has excellent battery characteristics regarding the initial discharge efficiency and high-rate charge upon being charged and discharged after the battery is assembled and is able to significantly suppress the gelation which can occur when the positive electrode active material slurry is prepared. Accordingly, the present invention can easily prepare plates and ensures excellent coating properties of the slurry. COPYRIGHT KIPO 2015 (AA) Example 1 (BB) Example 2 (CC) Example 3 (DD) Example 4 (EE) Comparative example 1 (FF) Comparative example 2 ...

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13-10-2011 дата публикации

METHOD FOR MANUFACTURING A CATHODE ACTIVE MATERIAL FOR A SECONDARY BATTERY INCLUDING A METAL COMPOSITE OXIDE, AND CATHODE ACTIVE MATERIAL FOR A SECOND BATTERY INCLUDING A METAL COMPOSITE OXIDE MANUFACTURED BY SAID METHOD

Номер: WO2011126182A1
Принадлежит:

The present invention relates to a method for manufacturing a cathode active material for a secondary battery including a metal composite oxide, and to a cathode active material for a second battery including a metal composite oxide manufactured by the method. The cathode active material for a second battery including a metal composite oxide manufactured according to the present invention is a metal composite oxide consisting of Li, Ni, Co, and Mn, and satisfies the following chemical formula 1: [Chemical Formula 1] Li(1+a)NixCo[(1-a)(1-y)-x]Mn[a+(1-a)y] MdO(a+2) (where, 0.01≤a≤0.30, 0.01≤x≤0.6, 0.01≤y≤0.8, M is Al, Mg, Cr, Fe, V, and/or Ti, and 0≤d≤0.05.) ...

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09-07-2015 дата публикации

METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERIES AND POSITIVE ELECTRODE ACTIVE MATERIAL MANUFACTURED BY SAME

Номер: KR1020150080199A
Принадлежит:

The present invention relates to a method for manufacturing a positive electrode active material for lithium rechargeable batteries, and to the positive electrode active material for lithium rechargeable batteries manufactured by the same, and more specifically, to a method for manufacturing a positive electrode active material for lithium rechargeable batteries, comprising the steps of manufacturing an active material, and washing the same using a washing solution including Mn, and to the positive electrode active material for lithium rechargeable batteries manufactured by the same. COPYRIGHT KIPO 2015 (AA) Comparative example - 1 (BB) Comparative example-2 (CC) Embodiment - 1 ...

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20-09-2022 дата публикации

리튬 이차 전지용 양극 활물질의 제조 방법

Номер: KR20220127517A
Принадлежит:

... 본 발명의 실시예들에 따르는 리튬 이차 전지용 양극 활물질 제조 방법은 전이금속 거대 전구체 및 리튬 전구체를 혼합하여 예비 리튬-전이금속 복합 산화물 입자를 준비하는 단계, 예비 리튬-전이금속 복합 산화물 입자를 소성하는 단계, 및 소성된 예비 리튬-전이금속 복합 산화물 입자를 분쇄하여 리튬-전이금속 복합 산화물 입자를 형성하는 단계를 포함한다. 이에 따라, 공정 수행이 용이하며 균일한 크기의 단결정 양극 활물질을 제조할 수 있다.

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07-04-2016 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY INCLUDING SAME

Номер: WO2016052820A1
Принадлежит:

The present invention relates to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same and, more particularly, to a positive electrode active material for a lithium secondary battery and a lithium secondary battery including the same, the positive electrode active material having a layered structure and comprising a core layer, a concentration gradient layer having an adjusted thickness on the outer periphery of the core layer, and a surface layer, wherein lithium ion diffusion paths formed within a primary particle and a secondary particle have an orientation in a specific direction.

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07-07-2016 дата публикации

METHOD FOR PRODUCING POSITIVE ACTIVE MATERIAL PRECURSOR AND POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, EXHIBITING CONCENTRATION GRADIENT, AND POSITIVE ACTIVE MATERIAL PRECURSOR AND POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, EXHIBITING CONCENTRATION GRADIENT, PRODUCED BY SAME

Номер: WO2016108375A1
Принадлежит:

The present invention relates to a method for producing a positive active material for lithium secondary batteries, exhibiting a concentration gradient, and a positive active material for lithium secondary batteries, exhibiting a concentration gradient, produced by same and, more specifically, to a method for producing a positive active material for lithium secondary batteries, exhibiting a concentration gradient, and a positive active material for lithium secondary batteries, exhibiting a concentration gradient, produced by same, the method being characterized by forming a barrier layer so as to maintain a concentration gradient layer even in case of thermal diffusion by a subsequent heat treatment process.

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23-08-2022 дата публикации

리튬 이차 전지용 양극 활물질 및 이의 제조 방법

Номер: KR20220116957A
Автор: 김직수, 최지훈, 김상복
Принадлежит:

... 본 발명은 복수의 1차 입자들이 응집된 2차 입자의 구조를 갖는 리튬 금속 산화물을 포함하고, 상기 1차 입자들은 최소 내각의 크기가 45° 이상이며 최대 높이가 0.5 ㎛ 이상인 삼각형 형상의 입자를 포함하는, 리튬 이차 전지용 양극 활물질에 관한 것이다.

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06-02-2023 дата публикации

양극 활물질 전구체 및 이를 활용한 리튬 이차 전지

Номер: KR102495992B1
Принадлежит: 에스케이온 주식회사

... 본 발명의 실시예들의 양극 활물질 전구체는 니켈(Ni) 및 코발트(Co)를 포함하며, 니켈을 과량으로 포함하고, X-선 회절 분석에 의한 (001)면 피크의 면적(A001)에 대한 (101)면 피크의 면적(A101)의 비율(A101/A001)이 1 이상이다. 상기 양극 활물질 전구체를 사용하여 결정화도 및 장기 안정성이 우수한 양극 및 리튬 이차 전지를 구현할 수 있다.

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31-01-2024 дата публикации

리튬 이차 전지용 양극 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지

Номер: KR20240014089A
Автор: 노미정, 김직수, 한국현
Принадлежит:

... 본 발명의 실시예들의 리튬 이차 전지용 양극 활물질은 코어부 및 쉘부를 포함하며 니켈(Ni), 코발트(Co) 및 망간(Mn)을 함유하는 리튬 금속 산화물 입자를 포함한다. 리튬 금속 산화물 입자의 전체 Ni 함량은 Ni, Co 및 Mn의 100몰% 에 대하여 70몰% 이상이다. 쉘부는 리튬 금속 산화물 입자의 표면으로부터 10 내지 100nm 범위의 깊이 영역을 포함하며, 상기 깊이 영역에서의 Co 함량은 코어부의 Co 함량 대비 1.4 내지 6배이다. 고함량 Co 표면 처리를 통해 리튬 이차 전지의 안정성이 향상될 수 있다.

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10-06-2016 дата публикации

APPARATUS AND METHOD FOR ALLOCATING RESOURCES AND PROGRAM APPLIED THERETO

Номер: KR1020160066420A
Принадлежит:

Disclosed are an apparatus for allocating resources, an operating method thereof, and a program applied thereto. When two or more resources are desired to be shared for an application execution process of a plurality of users, cores, provided by the two or more resources, are allocated to the users according to an application processing amount of each of the two or more resources to process application execution for each of the user. Accordingly, heterogeneous computing resources may be effectively allocated to the users in a heterogeneous computing environment. COPYRIGHT KIPO 2016 (AA) Start (BB) End (S110) Determining the number of allowed assignment (S120) Checking an application execution process amount (S130) Performing a resource assignment for a certain user of which the maximum application execution process amount is checked (S140) Exceeding the number of allowed assignment? (S150) Assigning cores as many as the number of the residual allowed assignments (S160) Assigning the core ...

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08-07-2015 дата публикации

METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERIES AND POSITIVE ELECTRODE ACTIVE MATERIAL MANUFACTURED BY SAME

Номер: KR1020150079362A
Принадлежит:

The present invention relates to a method for manufacturing a positive electrode active material for lithium rechargeable batteries, and to the positive electrode active material for lithium rechargeable batteries manufactured by the same. A lithium nickel compound manufactured by the method for the positive electrode active material for lithium rechargeable batteries stabilizes surfaces of the positive electrode active material through sludge washing and reduces residual lithium, and improves deterioration in sludge washing. COPYRIGHT KIPO 2015 (CC) Embodiment - 7 (BB) Embodiment - 2 (AA) Comparative example - 1 ...

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08-07-2016 дата публикации

POSITIVE ELECTRODE ACTIVE MATERIAL AND MANUFACTURING METHOD THEREOF

Номер: KR1020160081545A
Принадлежит:

The present invention relates to a positive electrode active material and a manufacturing method thereof and, more specifically, relates to a positive electrode active material comprising LiAlO_2 on a surface by performing a reaction of an Al compound with the remaining lithium. Provided is the novel positive electrode active material, which can improve lifespan, storage properties at high temperatures, and particle strength. COPYRIGHT KIPO 2016 (AA) Particle strength, Mpa (BB) Comparative example-6 (CC) Example-10 ...

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09-11-2016 дата публикации

자원할당장치 및 그 동작 방법 그리고 이에 적용되는 프로그램

Номер: KR0101674540B1
Принадлежит: 한국과학기술정보연구원

... 본 발명은 자원할당장치 및 그 동작 방법 및 이에 적용되는 프로그램을 개시한다. 즉, 다수의 사용자의 애플리케이션 실행 처리와 관련하여 2 이상의 자원을 공유하고자 하는 경우, 상기 2 이상의 자원 각각이 상기 다수의 사용자 각각에 대하여 처리할 수 있는 애플리케이션 실행 처리량에 따라서 상기 2 이상의 자원에서 제공하는 코어를 상기 다수의 사용자에게 할당함으로써, 다중 사용자를 지원하는 이종 컴퓨팅 환경에서 이종 컴퓨팅 자원을 다중 사용자에게 효율적으로 할당할 수 있다.

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12-03-2025 дата публикации

리튬 이차 전지용 양극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지

Номер: KR20250035320A
Автор: 최지훈, 권희준, 김직수
Принадлежит:

... 리튬 이차 전지용 양극 활물질은 리튬 금속 산화물을 포함하는 활물질 코어, 및 활물질 코어 상에 형성된 황-함유 코팅 및 금속 함유 코팅을 포함하는 활물질 입자를 포함한다. 활물질 입자의 측정 프로브의 개별 접촉에 의해 DOD(Depth of Discharge) 50%에서 측정된 전하 이동 저항(Rct)이 60Ω/cm2 이하이다. 전기 전도도 및 이온 전도도가 함께 향상된 양극 활물질을 포함하는 리튬 이차 전지가 제공된다.

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03-01-2013 дата публикации

CATHODE ACTIVE MATERIAL, LITHIUM SECONDARY BATTERY INCLUDING CATHODE ACTIVE MATERIAL, AND METHOD FOR ELECTROCHEMICALLY ACTIVATING LITHIUM SECONDARY BATTERY

Номер: WO2013002559A3
Принадлежит:

The present invention relates to a cathode active material, a lithium secondary battery including the cathode active material, and a method for electrochemically activating the lithium secondary battery, and more specifically to a cathode active material with high capacity and excellent thermal stability, a lithium secondary battery including the cathode active material, and a method for electrochemically activating the lithium secondary battery.

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12-11-2015 дата публикации

Method for preparing lithium nickel oxide-over lithiatied manganese oxide composite and lithium nickel oxide-over lithiatied manganese oxide composite using the same

Номер: KR0101568257B1
Автор: 김직수, 최문호, 정재용
Принадлежит: 주식회사 에코프로

... 본 발명은 리튬 니켈 산화물과 리튬과량 망간 산화물 복합체의 제조 방법 및 이에 의하여 제조된 리튬 니켈 산화물과 리튬과량 망간 산화물 복합체에 관한 것으로서, 더욱 상세하게는 대전류로 충전과 방전을 반복하여도 상온 및 고온에서 긴 수명을 가지며 우수한 안전성을 나타내는 리튬 니켈 산화물과 리튬과량 망간 산화물 복합체의 제조 방법 및 이에 의하여 제조된 리튬 니켈 산화물과 리튬 과량 망간 산화물 복합체에 관한 것이다. 본 발명에 의한 리튬 니켈 산화물과 리튬과량 망간 산화물 복합체의 제조 방법은 리튬 니켈 산화물과 리튬과량 망간 산화물의 단순 혼합이 아니라, 혼합 후 분쇄하고 분무 건조 및 열처리에 의해 입자화한 복합체로서 높은 에너지 밀도와 단시간에 큰 출력을 발휘할 수 있을 뿐만 아니라, 우수한 안전성 및 장기 수명 특성을 나타낸다.

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21-03-2023 дата публикации

음극 활물질 및 이를 포함하는 리튬 이차 전지

Номер: KR20230039173A
Автор: 정주호, 김직수, 박귀옥
Принадлежит:

... 본 발명에 따른 음극 활물질은 수명 초기에는 고체 전해질을 포함하는 코어부는 실리콘계 활물질을 포함하는 쉘부의 내부에 완전히 포함되어 외부로 노출되지 않으며, 수명이 진행되면서 쉘부의 실리콘계 활물질을 포함하는 쉘부에 크랙이 발생하여 깨지게 되면 내부에 존재하는 고체 전해질이 새롭게 반응에 참여할 수 있게 된다. 이에 따라, 소모되는 전해질을 보충할 수 있어 리튬 이차 전지의 수명 특성을 향상시킬 수 있다.

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