BATTERY MANAGEMENT SYSTEM, BATTERY MANAGEMENT METHOD AND BATTERY MANAGEMENT PROGRAM

Japanese Patent JP2022182790

A

To obtain an effective index for predicting a life of a secondary battery.SOLUTION: A battery management system according to an embodiment, comprises: an acquisition unit that acquires standard data indicating a state of a secondary battery mounted on an electric vehicle in a standard period, and target data indicating a state of the secondary battery in a target period after the standard period; a characteristic calculation unit that calculates, based on the standard data, a characteristic value corresponding to the state of charge of the secondary battery in the standard period as a standard characteristic value, and calculates, based on the target data, a characteristic value corresponding to the state of charge of the secondary battery in the target period as a target characteristic value; and a ratio calculation unit that calculates a ratio indicating a relation between the standard characteristic value and the target characteristic value as a reference value for predicting a life of the secondary battery.SELECTED DRAWING: Figure 1

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KUDO AKIHIKO
HAYATA YUKITSUGU
OMIZU EIJI

JP2021090522A

December 08, 2022

May 28, 2021

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SHOWA DENKO MATERIALS CO LTD

G01R31/392; G01R31/367; G01R31/3828; G01R31/3842; G01R31/389; H01M10/48

Yoshiki Hasegawa
Yoshinori Shimizu
Hiroyuki Hirano
Kazuyuki Hosaka

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