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    CHARGING CONTROL METHOD, CHARGING CONTROL DEVICE, ELECTRONIC DEVICE, AND STORAGE MEDIUM
    1.
    发明公开
    CHARGING CONTROL METHOD, CHARGING CONTROL DEVICE, ELECTRONIC DEVICE, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20240250546A1

    公开(公告)日：2024-07-25

    申请号：US18623491

    申请日：2024-04-01

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Haijiang WANG ,  Ming NI ,  Haili LI

    IPC: H02J7/00 ,  B60L58/24

    CPC classification number: H02J7/0071 ,  B60L58/24 ,  H02J7/0048 ,  H02J7/007194 ,  B60L2240/545

    Abstract: This application provides a charging control method, a charging control device, an electronic device, and a storage medium. The charging control method includes: obtaining fastest-charge data, where a charging time in the fastest-charge data is less than or equal to a minimum charging time for a same state-of-charge (SOC) increment section in historical charging processes; and performing charging control on a battery based on the fastest-charge data. By obtaining the fastest-charge data and performing charging control on the battery based on the fastest-charge data, the charging control method according to this application can ensure that the charging time is close to or equal to the minimum charging time in historical charging processes, thereby effectively increasing the charging speed.

    METHOD AND DEVICE FOR DETECTING CHARGING ABNORMALITY, AND STORAGE MEDIUM
    3.
    发明申请
    METHOD AND DEVICE FOR DETECTING CHARGING ABNORMALITY, AND STORAGE MEDIUM 有权

    公开(公告)号：US20220320886A1

    公开(公告)日：2022-10-06

    申请号：US17707780

    申请日：2022-03-29

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Guangyu XU ,  Haili LI ,  Wei ZHAO

    IPC: H02J7/00 ,  G01R31/3835 ,  G01R31/367

    Abstract: This application provides a method and device for detecting charging abnormality, and a storage medium. In this application, a first sampling moment corresponding to a first minimum voltage in n sampled voltages is determined based on n consecutive sampled voltages of a first cell from an end moment of an ith charging phase to an end moment of an (i+1)th charging phase in a kth charging process. A second sampling moment corresponding to a second minimum voltage in any one of the first (k−1)th charging processes can be determined in the same way. Then abnormality of the kth charging process is determined.

    METHOD FOR CHARGING POWER BATTERY AND BATTERY MANAGEMENT SYSTEM
    4.
    发明公开
    METHOD FOR CHARGING POWER BATTERY AND BATTERY MANAGEMENT SYSTEM 审中-公开

    公开(公告)号：US20230327464A1

    公开(公告)日：2023-10-12

    申请号：US18209491

    申请日：2023-06-14

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Shan HUANG ,  Guangyu XU ,  Haili LI ,  Shichao LI

    IPC: H02J7/00

    CPC classification number: H02J7/0029 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/007194

    Abstract: Embodiments of the present application provide a method for charging a power battery and a battery management system. The method may be applied to a battery management system for the power battery, and the method may comprise acquiring a charging mode of the power battery; determining a negative electrode potential safety threshold for the power battery according to the charging mode of the power battery; acquiring a negative electrode potential of the power battery during a charging process for the power battery; and adjusting a charging current for the power battery based on the negative electrode potential of the power battery and the negative electrode potential safety threshold.

    BATTERY CHARGING METHOD, CONTROLLER, BATTERY MANAGEMENT SYSTEM, BATTERY, AND ELECTRIC DEVICE
    6.
    发明申请
    BATTERY CHARGING METHOD, CONTROLLER, BATTERY MANAGEMENT SYSTEM, BATTERY, AND ELECTRIC DEVICE 有权

    公开(公告)号：US20220255336A1

    公开(公告)日：2022-08-11

    申请号：US17365362

    申请日：2021-07-01

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Haili LI

    IPC: H02J7/00

    Abstract: This application relates to the battery field, and discloses a battery charging method, a controller, a battery management system, a battery, and an electric device. The battery charging method includes: obtaining an electrical parameter of a battery; determining whether the electrical parameter of the battery reaches a preset threshold, where a value range of the preset threshold meets the following condition: a battery state of charge (SOC) corresponding to the preset threshold is 70% to 80%; suspending, when the electrical parameter of the battery reaches the preset threshold, charging of the battery and discharging the battery for a duration of t; and continuing to charge the battery when the discharge is completed. In the embodiments of this application, the preset threshold of the electrical parameter is set.

    DIRECT CURRENT RESISTANCE DETECTION METHOD FOR BATTERIES, SYSTEM, DEVICE, AND STORAGE MEDIUM
    7.
    发明公开
    DIRECT CURRENT RESISTANCE DETECTION METHOD FOR BATTERIES, SYSTEM, DEVICE, AND STORAGE MEDIUM 审中-公开

    公开(公告)号：US20240361396A1

    公开(公告)日：2024-10-31

    申请号：US18764949

    申请日：2024-07-05

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Ming NI ,  Haili LI ,  Mingwei YAN

    IPC: G01R31/389 ,  G01R31/374 ,  G01R31/3842 ,  H02J7/00

    CPC classification number: G01R31/389 ,  G01R31/374 ,  G01R31/3842 ,  H02J7/0047

    Abstract: Provided are a direct current resistance (DCR) detection method for batteries, a system, a device, and a storage medium. Multiple discharging current pulses are applied during the constant current charging process of a battery to form a negative pulse charging mode. The discharging current can be added during the charging process to quickly remove the polarization effect of a battery cell generated during the charging process, thereby improving the charging acceptance capacity of the battery cell, shortening the charging time and increasing the charging efficiency. At the same time, a first battery voltage is obtained during the discharging current pulse time period, and a second battery voltage is obtained during the constant current charging time period after the discharging current pulse, thereby obtaining a DCR value of the battery during actual charging and use. The DCR of the battery cell can be detected simultaneously in the negative pulse charging mode.

    METHOD FOR CHARGING BATTERY, BATTERY MANAGEMENT SYSTEM, CHARGE AND DISCHARGE DEVICE
    8.
    发明申请
    METHOD FOR CHARGING BATTERY, BATTERY MANAGEMENT SYSTEM, CHARGE AND DISCHARGE DEVICE 有权

    公开(公告)号：US20230035145A1

    公开(公告)日：2023-02-02

    申请号：US17715203

    申请日：2022-04-07

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Yu YAN ,  Xiyang ZUO ,  Diping LIU ,  Haili LI ,  Zhanliang LI ,  Zhimin DAN

    IPC: H02J7/00

    Abstract: The embodiments of the present application provide a method for charging a battery, a battery management system, and a charge and discharge device. The method for charging the battery includes: acquiring, by a BMS, a first charge current and sending it to a charge and discharge device, thus making the charge and discharge device charge the battery based on the first charge current; if a first accumulated charge quantity of the battery is greater than or equal to a first accumulated charge quantity threshold value, acquiring, by the BMS, a first discharge current and sending it to the charge and discharge device, thus making the charge and discharge device control the battery to discharge based on the first discharge current; and if a first accumulated discharge quantity of the battery is greater than or equal to a first accumulated discharge quantity threshold value.

    METHOD FOR CHARGING BATTERY, CHARGING AND DISCHARGING DEVICE
    9.
    发明申请
    METHOD FOR CHARGING BATTERY, CHARGING AND DISCHARGING DEVICE 有权

    公开(公告)号：US20230031352A1

    公开(公告)日：2023-02-02

    申请号：US17563513

    申请日：2021-12-28

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Yu YAN ,  Xiyang ZUO ,  Zhimin DAN ,  Haili LI ,  Shan HUANG ,  Shichao LI

    IPC: H02J7/00 ,  B60L50/60 ,  B60L58/12 ,  H01M10/42

    Abstract: Embodiments of the application provide a method for charging battery a charging and discharging device, which can ensure the safety performance of the battery. The charging and discharging device includes a first DC/DC converter, a unidirectional AC/DC converter and a control unit, where the first DC/DC converter is a unidirectional DC/DC converter, and the control unit is configured to: receive a first charging current and control the unidirectional AC/DC converter and the first DC/DC converter to charge a battery through an AC power source based on the first charging current; receive a first discharging current, and control the battery to release power based on the first discharging current; and receive a second charging current, and control the unidirectional AC/DC converter and the first DC/DC converter to charge the battery through the AC power source based on the second charging current.

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