公开(公告)号：US20210296921A1

公开(公告)日：2021-09-23

申请号：US17342878

申请日：2021-06-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peng Lu ,  Xiaohu He ,  Jun Wu

IPC: H02J7/00

Abstract: A charging method and apparatus are provided. In a process of performing constant voltage charging on a battery at a charging voltage that is greater than an end-of-precharge voltage and less than a maximum charging voltage, the charging apparatus determines a current relaxation time and controls a charging current and a charging voltage based on the current relaxation time, to adaptively charge the battery. This better adapts to a change inside the battery in the charging process, effectively improves safety and reliability of the battery in the charging process, enhances cycle performance of the battery, and prolongs battery life.

公开(公告)号：US20220190626A1

公开(公告)日：2022-06-16

申请号：US17685353

申请日：2022-03-02

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xin Yao ,  Xiaohu He

IPC: H02J7/00 ,  H01M10/44

Abstract: A charging control method and a charging control apparatus are provided. The charging control method may be used to control a charging process of a secondary battery in a terminal device. According to the used charging control method, in the charging process, a battery voltage of the secondary battery may reach a voltage value greater than a limited charge voltage, so that a charging speed of the secondary battery may increase. In addition, in this method, overvoltage of the secondary battery is prevented by gradually reducing a current value of a charging current.

公开(公告)号：US12015296B2

公开(公告)日：2024-06-18

申请号：US17342878

申请日：2021-06-09

Applicant: Huawei Technologies Co., Ltd.

Inventor： Peng Lu ,  Xiaohu He ,  Jun Wu

IPC: H02J7/00 ,  B60L53/62

CPC classification number: H02J7/0049 ,  B60L53/62 ,  H02J7/0048 ,  H02J7/007182

Abstract: A charging method, where in a process of performing constant voltage charging on a battery at a charging voltage that is greater than an end-of-precharge voltage and less than a maximum charging voltage, a charging apparatus determines a current relaxation time and controls a charging current and a charging voltage based on the current relaxation time, to adaptively charge the battery.