公开(公告)号：US20230207893A1

公开(公告)日：2023-06-29

申请号：US18177137

申请日：2023-03-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Yezheng Zhang ,  Weihong Xia ,  Bin Le ,  Guanghui Zhang ,  Wei Zhou ,  Xue Qin

IPC: H01M10/42 ,  H01M10/0525 ,  H01M10/0587

CPC classification number: H01M10/4235 ,  H01M10/0525 ,  H01M10/0587 ,  H01M2004/027

Abstract: A three-electrode battery (10) and an energy storage system are disclosed. The three-electrode battery (10) includes a battery management unit (14), a housing (11), and a reference electrode (13) and a battery cell (12) that are disposed in the housing (11). A detection part (131) of the reference electrode (13) is located in the battery cell (12). A reference electrode tab (132) is located outside the battery cell (12). The battery management unit (14) is connected to the reference electrode tab (132) and a negative electrode tab (122) of the battery cell (12), so that a voltage between the reference electrode (13) and a negative electrode of the battery cell (12) can be collected in real time, and a charging current of the battery (10) is controlled based on the negative electrode potential, so that the charging current can be optimized and adjusted in real time.