公开(公告)号：US12183916B2

公开(公告)日：2024-12-31

申请号：US17464463

申请日：2021-09-01

Applicant: BASF TODA BATTERY MATERIALS LLC ,  GS YUASA INTERNATIONAL LTD.

Inventor： Taisei Inoue ,  Daisuke Nishikawa ,  Manabu Yamamoto ,  Katsuya Inoue

IPC: H01M4/36 ,  C01G53/00 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M4/02

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

公开(公告)号：US11237214B2

公开(公告)日：2022-02-01

申请号：US16631614

申请日：2018-07-19

Applicant: GS Yuasa International Ltd.

Inventor： Nan Ukumori ,  Katsuya Inoue

IPC: G01R31/367 ,  G01R31/382 ,  H01M10/48

Abstract: An estimation device include: an acquisition unit that acquires information relating to a part of a third characteristic that is an energy storage amount-voltage charge characteristic and/or a fourth characteristic that is an energy storage amount-voltage discharge characteristic, of an energy storage device; a storage unit that stores a plurality of energy storage amount characteristics that are at least any of first characteristics, second characteristics, third characteristics that are energy storage amount-voltage charge characteristics, fourth characteristics that are energy storage amount-voltage discharge characteristics, and pieces of V−dQ/dV in correspondence with a change in a feature value, which is changed by repeated charge-discharge, or stores as a function of the feature value; and a first estimation unit that estimates an internal state of the energy storage device on the basis of the information and the energy storage amount characteristics.

公开(公告)号：US20210399292A1

公开(公告)日：2021-12-23

申请号：US17464463

申请日：2021-09-01

Applicant: BASF TODA BATTERY MATERIALS LLC ,  GS YUASA INTERNATIONAL LTD.

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

公开(公告)号：US11121365B2

公开(公告)日：2021-09-14

申请号：US16361006

申请日：2019-03-21

Applicant: BASF TODA BATTERY MATERIALS LLC ,  GS YUASA INTERNATIONAL LTD.

Inventor： Taisei Inoue ,  Daisuke Nishikawa ,  Manabu Yamamoto ,  Katsuya Inoue

IPC: H01M4/36 ,  H01M4/505 ,  H01M10/0525 ,  H01M4/525 ,  C01G53/00 ,  H01M4/02

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

公开(公告)号：US20190221839A1

公开(公告)日：2019-07-18

申请号：US16361006

申请日：2019-03-21

Applicant: BASF TODA BATTERY MATERIALS LLC ,  GS YUASA INTERNATIONAL LTD.

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