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公开(公告)号：US20150221944A1
公开(公告)日：2015-08-06
申请号：US14427135
申请日：2013-09-09
Applicant: GS Yuasa International Ltd.
Inventor： Yasushi Uebo , Keisuke Anami
IPC: H01M4/525 , H01M4/505 , H01M10/0525 , H01M4/485
CPC classification number: H01M4/525 , H01M4/131 , H01M4/364 , H01M4/485 , H01M4/505 , H01M10/052 , H01M10/0525 , H01M2004/021
Abstract: A positive electrode for a nonaqueous electrolyte secondary battery according to the present invention includes particles A of a lamellar type lithium transition metal oxide and particles B of a spinel type lithium transition metal oxide, as a positive active material, at a ratio within the range of A:B=20:80 to 80:20 (weight ratio), in which a particle size distribution of the positive active material has a peak based on the particles A and a peak based on the particles B within the range of 1 to 50 μm. In the integrated distribution curve of the particle diameter, a particle diameter A(D50) at a degree of accumulation of the particles A of 50% and a particle diameter B(D50) at a degree of accumulation of the particles B of 50% satisfy the following expression (1), and a particle diameter A(D95) at a degree of accumulation of the particles A of 95% and a particle diameter B(D5) at a degree of accumulation of the particles B of 5% satisfy the following expression (2): B(D50)−A(D50)≧5 μm Expression (1) B(D5)>A(D95) Expression (2).
Abstract translation: 本发明的非水电解质二次电池用正极包含层状锂过渡金属氧化物的粒子A和作为正极活性物质的尖晶石型锂过渡金属氧化物的粒子B的比例在 A：B = 20：80〜80:20（重量比），其中正极活性物质的粒度分布基于颗粒A具有峰值，基于颗粒B的峰值在1至50的范围内 μm。 在粒径的积分分布曲线中，粒子A的累积量为50％，粒子B的累积粒径B（D50）为50％的粒径A（D50）满足 颗粒B的累积量为95％，粒径B（D5）的颗粒B的累积程度为5％的粒径A（D95）满足下列条件（1） 表达式（2）：B（D50）-A（D50）≥5μm表达式（1）B（D5）> A（D95）表达式（2）。
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Patent Agency Ranking
公开(公告)号：US09660262B2
公开(公告)日：2017-05-23
申请号：US14427135
申请日：2013-09-09
Applicant: GS Yuasa International Ltd.
Inventor： Yasushi Uebo , Keisuke Anami
IPC: H01M4/525 , H01M4/505 , H01M4/131 , H01M4/36 , H01M10/052 , H01M4/485 , H01M10/0525 , H01M4/02
CPC classification number: H01M4/525 , H01M4/131 , H01M4/364 , H01M4/485 , H01M4/505 , H01M10/052 , H01M10/0525 , H01M2004/021
Abstract: A positive electrode for a nonaqueous electrolyte secondary battery according to the present invention includes particles A of a lamellar type lithium transition metal oxide and particles B of a spinel type lithium transition metal oxide, as a positive active material, at a ratio within the range of A:B=20:80 to 80:20 (weight ratio), in which a particle size distribution of the positive active material has a peak based on the particles A and a peak based on the particles B within the range of 1 to 50 μm. In the integrated distribution curve of the particle diameter, a particle diameter A(D50) at a degree of accumulation of the particles A of 50% and a particle diameter B(D50) at a degree of accumulation of the particles B of 50% satisfy the following expression (1), and a particle diameter A(D95) at a degree of accumulation of the particles A of 95% and a particle diameter B(D5) at a degree of accumulation of the particles B of 5% satisfy the following expression (2): B(D50)−A(D50)≧5 μm Expression (1) B(D5)>A(D95) Expression (2).
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公开(公告)号：US09853327B2
公开(公告)日：2017-12-26
申请号：US15069463
申请日：2016-03-14
Applicant: GS Yuasa International Ltd.
Inventor： Yudai Kawasoe , Kenta Nagamine , Keisuke Anami
IPC: H01M6/16 , H01M10/0567 , H01M10/0569
CPC classification number: H01M10/0567 , H01M10/0569 , H01M2220/20 , H01M2300/0025
Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode and an electrolyte solution, wherein the negative electrode includes a negative active material layer, the electrolyte solution contains fluoroethylene carbonate, and when a content (mg) of the fluoroethylene carbonate is denoted as X and a reaction area (m2) of the negative active material layer is denoted as Y, X and Y satisfy a relation of 10≦(X/Y)≦100.
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公开(公告)号：US20150017521A1
公开(公告)日：2015-01-15
申请号：US14381306
申请日：2013-05-20
Applicant: GS Yuasa International Ltd. , Lithium Energy Japan
Inventor： Hirotsugu Ioka , Keisuke Anami , Shinya Kitano , Noriyoshi Munenaga , Taku Nakamura
CPC classification number: H01G9/08 , C22C38/00 , C22C38/06 , C22C38/18 , H01M2/0217 , H01M2/024 , H01M2/0257
Abstract: Provided is an energy storage device including a container with high productivity and satisfactory corrosion resistance. In the energy storage device including the container housing an electrode assembly having a positive electrode and a negative electrode, and electrolyte solution, the container is made of stainless steel including 0.09% by weight or more aluminum and has welded portions and where the stainless steel is welded.
Abstract translation: 本发明提供一种能量储存装置，其特征在于，具有生产率高，耐腐蚀性良好的容器。 在包括容纳具有正极和负极的电极组件和电解质溶液的容器的容器中，容器由不锈钢制成，包括0.09重量％或更多的铝，并且具有焊接部分，并且不锈钢是 焊接
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公开(公告)号：US11764403B2
公开(公告)日：2023-09-19
申请号：US16754784
申请日：2018-10-15
Applicant: GS Yuasa International Ltd.
Inventor： Yudai Kawasoe , Kenta Nagamine , Keisuke Anami
IPC: H01M10/0569 , H01M10/0525 , H01M10/0568 , H01M4/13 , H01M4/02
CPC classification number: H01M10/0569 , H01M4/13 , H01M10/0525 , H01M10/0568 , H01M2004/027 , H01M2004/028 , H01M2300/0034
Abstract: A nonaqueous electrolyte secondary battery disclosed herein includes a positive electrode plate including a positive composite layer, a negative electrode plate including a negative composite layer, and a nonaqueous electrolyte, in which the negative composite layer is composed of a facing portion facing a surface of the positive composite layer, and a non-facing portion that is on the same surface as the facing portion and does not face the surface of the positive composite layer, and the area ratio of the non-facing portion to a combined area of the facing portion and the non-facing portion of the negative composite layer is 7% or more, and the nonaqueous electrolyte contains a fluorinated carbonate and a cyclic sulfone compound.
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公开(公告)号：US09905369B2
公开(公告)日：2018-02-27
申请号：US14381306
申请日：2013-05-20
Applicant: GS Yuasa International Ltd. , Lithium Energy Japan
Inventor： Hirotsugu Ioka , Keisuke Anami , Shinya Kitano , Noriyoshi Munenaga , Taku Nakamura
CPC classification number: H01G9/08 , C22C38/00 , C22C38/06 , C22C38/18 , H01M2/0217 , H01M2/024 , H01M2/0257
Abstract: Provided is an energy storage device including a container with high productivity and satisfactory corrosion resistance. In the energy storage device including the container housing an electrode assembly having a positive electrode and a negative electrode, and electrolyte solution, the container is made of stainless steel including 0.09% by weight or more aluminum and has welded portions and where the stainless steel is welded.
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