公开(公告)号：US11967848B2

公开(公告)日：2024-04-23

申请号：US17119351

申请日：2020-12-11

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zheng Zhong ,  Dong Feng ,  Jianye Zhang

IPC: H02J7/00 ,  G01R31/392 ,  H01M10/42 ,  H01M10/44 ,  H01M10/48 ,  H02J9/06

CPC classification number: H02J7/005 ,  G01R31/392 ,  H01M10/425 ,  H01M10/441 ,  H01M10/482 ,  H02J7/0013 ,  H02J9/06 ,  H02J9/061 ,  H01M2010/4271 ,  H01M2220/10

Abstract: A battery system is provided, including a processing module and a plurality of battery modules. Each of the plurality of battery modules includes a battery management system and an electrochemical cell pack controlled by the battery management system. The processing module is configured to control the electrochemical cell pack to alternately perform a discharging or charging operation. A sum of power of battery modules other than a first battery module in the plurality of battery modules is greater than power required by a target power-supplied object, and the first battery module is any one of the plurality of battery modules. A battery management system is configured to record a target time. The processing module or the battery management system is configured to determine a state of health of the electrochemical cell pack in the first battery module based on the target time.