公开(公告)号：US20210098995A1

公开(公告)日：2021-04-01

申请号：US17119351

申请日：2020-12-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Zheng ZHONG ,  Dong FENG ,  Jianye ZHANG

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

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.