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Patent Agency Ranking
公开(公告)号：US12183916B2
公开(公告)日：2024-12-31
申请号：US17464463
申请日：2021-09-01
Inventor： Taisei Inoue , Daisuke Nishikawa , Manabu Yamamoto , Katsuya Inoue
Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0
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2.发明申请公开(公告)号：US20190221839A1
公开(公告)日：2019-07-18
申请号：US16361006
申请日：2019-03-21
Inventor： Taisei Inoue , Daisuke Nishikawa , Manabu Yamamoto , Katsuya Inoue
IPC: H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525
CPC classification number: H01M4/366 , C01G53/00 , H01M4/36 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M2004/021 , H01M2004/028
Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0
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公开(公告)号：US11121365B2
公开(公告)日：2021-09-14
申请号：US16361006
申请日：2019-03-21
Inventor： Taisei Inoue , Daisuke Nishikawa , Manabu Yamamoto , Katsuya Inoue
Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0
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公开(公告)号：US20210399292A1
公开(公告)日：2021-12-23
申请号：US17464463
申请日：2021-09-01
Inventor： Taisei Inoue , Daisuke Nishikawa , Manabu Yamamoto , Katsuya Inoue
IPC: H01M4/36 , H01M4/505 , H01M10/0525 , H01M4/525 , C01G53/00
Abstract: When a non-aqueous electrolyte secondary battery in which a positive electrode active material comprising a layered lithium-composite oxide is used for a positive electrode is subjected to charge/discharge under a prescribed condition, in a graph showing the relationship between voltage “V” with discharge during 5th cycle and value dQ/dV from differentiation of battery capacity “Q” with discharge during 5th cycle by voltage “V”, peak intensity ratio “r” represented by the equation: r=|Ic|/(|Ia|+|Ib|+|Ic|) satisfies 0
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公开(公告)号：US12051804B2
公开(公告)日：2024-07-30
申请号：US17020136
申请日：2020-09-14
Applicant: BASF TODA BATTERY MATERIALS LLC
Inventor： Junji Kashiwagi , Daisuke Nishikawa , Satoshi Nakamura , Kazutoshi Ishizaki , Kazumichi Koga , Hiroyoshi Noguchi , Takahiko Sugihara , Kazutoshi Matsumoto
CPC classification number: H01M4/525 , H01M4/0471 , H01M4/505 , H01M10/0427 , H01M10/0525 , H01M2004/028
Abstract: Excellent thermal stability in addition to excellent cycle property with maintaining a sufficient battery capacity is shown by positive electrode active material particles having a layered rock salt structure, represented by the compositional formula: (LiγXe)(NiaCobXcZd)O2, in the compositional formula: X is a divalent metallic element capable of substituting for Li-site; Z is a metallic element containing at least Al and/or Mn, other than X; 0.93≤γ≤1.15; 0.82≤a
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