公开(公告)号：US11710863B2

公开(公告)日：2023-07-25

申请号：US17925778

申请日：2020-05-20

Applicant: Nissan Motor Co., Ltd. ,  Renault S.A.S.

Inventor： Anna Hirowatari ,  Toshikazu Kotaka ,  Koichiro Aotani

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/48 ,  G01R31/388 ,  H01M10/615 ,  G01R31/389

CPC classification number: H01M10/448 ,  G01R31/388 ,  G01R31/389 ,  H01M10/484 ,  H01M10/486 ,  H01M10/615

Abstract: In a recovery control method for a secondary battery that includes a positive electrode containing a positive electrode active material, a solid electrolyte, and a negative electrode containing a negative electrode active material containing at least a lithium metal or a lithium alloy, and is fastened from an outside, the recovery control method includes: measuring cell resistance of the secondary battery; calculating a recovery limit resistance value indicating an upper limit value of resistance that ensures recovering the secondary battery from a depth of charge/discharge of the secondary battery, a cell temperature of the secondary battery, and a pressure applied to the secondary battery; and inhibiting charging/discharging the secondary battery and executing recovery control that recovers the secondary battery when a resistance value of the cell resistance is equal to or less than the recovery limit resistance value.

公开(公告)号：US20230198033A1

公开(公告)日：2023-06-22

申请号：US17925778

申请日：2020-05-20

Applicant: Nissan Motor Co., Ltd. ,  Renault S.A.S.

Inventor： Anna Hirowatari ,  Toshikazu Kotaka ,  Koichiro Aotani

IPC: H01M10/44 ,  H01M10/48 ,  G01R31/389 ,  G01R31/388 ,  H01M10/615

CPC classification number: H01M10/448 ,  H01M10/484 ,  G01R31/389 ,  G01R31/388 ,  H01M10/615 ,  H01M10/486

Abstract: In a recovery control method for a secondary battery that includes a positive electrode containing a positive electrode active material, a solid electrolyte, and a negative electrode containing a negative electrode active material containing at least a lithium metal or a lithium alloy, and is fastened from an outside, the recovery control method includes: measuring cell resistance of the secondary battery; calculating a recovery limit resistance value indicating an upper limit value of resistance that ensures recovering the secondary battery from a depth of charge/discharge of the secondary battery, a cell temperature of the secondary battery, and a pressure applied to the secondary battery; and inhibiting charging/discharging the secondary battery and executing recovery control that recovers the secondary battery when a resistance value of the cell resistance is equal to or less than the recovery limit resistance value.