公开(公告)号：US20240170992A1

公开(公告)日：2024-05-23

申请号：US18426489

申请日：2024-01-30

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Tianhong HOU ,  Zongzhe LIU ,  Zheng ZHONG

IPC: H02J7/00 ,  H01M10/44

CPC classification number: H02J7/00719 ,  H01M10/443 ,  H02J7/0047 ,  H02J7/007182 ,  H02J7/007194

Abstract: A charging method, a charging apparatus, and a non-transitory computer-readable storage medium. The method includes: charging a to-be-charged battery module by using a charging current in a first constant current charging phase, where charging currents in a plurality of constant current charging phases are sequentially arranged, and the charging current in the first constant current charging phase is a charging current in a non-last-order constant current charging phase; determining an expansion force of the battery module; and determining, based on the expansion force, whether to adjust a current for charging the battery module from the charging current in the first constant current charging phase to a charging current in a second constant current charging phase, where the charging current in the second constant current charging phase is a charging current in a next-order constant current charging phase of the charging current in the first constant current charging phase.

公开(公告)号：US20240222997A1

公开(公告)日：2024-07-04

申请号：US18604222

申请日：2024-03-13

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Cheng CHEN ,  Zheng ZHONG ,  Tianhong HOU

IPC: H02J7/00

CPC classification number: H02J7/007182 ,  H02J7/0013 ,  H02J7/00302 ,  H02J7/0048 ,  H02J7/005

Abstract: In this application, a lower state of charge limit of the energy storage system may be determined based on a state of health of the energy storage system, an upper state of charge limit may be obtained based on a state of charge threshold, and the lower charging voltage limit and the upper charging voltage limit of the energy storage system may be determined based on the lower state of charge limit and the upper state of charge limit, to control the charging voltage of the energy storage system based on the lower charging voltage limit and the upper charging voltage limit.

公开(公告)号：US20240139564A1

公开(公告)日：2024-05-02

申请号：US18405246

申请日：2024-01-05

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Zongzhe LIU ,  Zheng ZHONG ,  Bin LE ,  Cheng CHEN ,  Yezheng ZHANG ,  Zeshun LIN

IPC: A62C3/16 ,  A62C37/36

CPC classification number: A62C3/16 ,  A62C37/36

Abstract: A battery pack including fire extinguishing equipment. The fire extinguishing equipment includes a first chamber, a second chamber, and an activation line. The first chamber stores a fire extinguishing chemical agent, the second chamber stores a gas-generating chemical agent, and the activation line extends into the second chamber to be in contact with the gas-generating chemical agent. The second chamber includes a pressure relief opening, and the pressure relief opening is in communication with the first chamber, and is configured to spray the gas in the second chamber to the first chamber. The first chamber includes a discharge opening, and the discharge opening is configured to discharge the fire extinguishing chemical agent in the first chamber after the gas generated after the gas-generating chemical agent is ignited enters the first chamber.