公开(公告)号：US20250038284A1

公开(公告)日：2025-01-30

申请号：US18783760

申请日：2024-07-25

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Gongde CHEN ,  Baoguo Chen ,  Ye He

IPC: H01M10/48 ,  H01M10/0525 ,  H01M10/42

Abstract: An energy storage system includes an electrochemical cell pack, a startup circuit, and an auxiliary source circuit. The startup circuit includes a first control circuit and a second control circuit, the second control circuit includes a first voltage divider circuit and a second voltage divider circuit that are connected in series, the first voltage divider circuit includes a switching device and a voltage divider that are connected in series, and a connection point between the first voltage divider circuit and the second voltage divider circuit is connected to a first control end of the first control circuit. When the switching device is turned on, a voltage of the electrochemical cell pack needs to meet a specified condition, and the first control circuit turns on a line between the electrochemical cell pack and the auxiliary source circuit, to enable the battery pack to supply power to the auxiliary source circuit.