中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

14 records (took 0.024 seconds)

    POSITIVE ELECTRODE PLATE AND BATTERY
    1.
    发明申请
    POSITIVE ELECTRODE PLATE AND BATTERY 审中-公开

    公开(公告)号：US20200006765A1

    公开(公告)日：2020-01-02

    申请号：US16268326

    申请日：2019-02-05

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Yanyun Tan ,  Fuping Luo ,  Shengwei WANG ,  Xinxin DU ,  Qiaoge WANG

    IPC: H01M4/525 ,  H01M4/505

    Abstract: The present disclosure provides a positive electrode plate and a battery, the positive electrode plate comprises a positive current collector and a positive film, the positive film is provided on least one surface of the positive current collector and comprises a positive active material, the positive active material comprises a layered lithium-containing compound, and an OI value of the positive film represented by COI is less than or equal to 150. The positive electrode plate of the present disclosure has smaller swelling and excellent dynamics performance, and the battery of the present disclosure has high safety performance, excellent dynamics performance and long cycle life at the same time.

    HEATING METHOD FOR RECHARGEABLE BATTERY, CONTROL UNIT AND HEATING CIRCUIT
    3.
    发明申请
    HEATING METHOD FOR RECHARGEABLE BATTERY, CONTROL UNIT AND HEATING CIRCUIT 审中-公开

    公开(公告)号：US20200381788A1

    公开(公告)日：2020-12-03

    申请号：US16860408

    申请日：2020-04-28

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Xinxin DU ,  Zhimin Dan ,  Fuping Luo ,  Shengwei Wang ,  Tiancong Wang ,  Xiyang Zuo

    IPC: H01M10/637 ,  H02J7/00 ,  H01M10/615

    Abstract: Disclosed are a heating method for a rechargeable battery, a control unit and a heating circuit. The heating method comprises: determining a frequency value of a pulse current for heating the rechargeable battery in response to a heating command of the rechargeable battery; determining a current value of the pulse current according to the frequency value and an acquired state parameter of the rechargeable battery; judging whether the current value satisfies a preset heating demand; if the current value satisfies the heating demand, generating the pulse current under control according to the frequency value; if the current value does not satisfy the heating demand, re-determining the frequency value and the current value of the pulse current. The embodiments of the present disclosure further provide a control unit and a heating circuit.

    WINDING TYPE ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND POWER CONSUMPTION DEVICE
    5.
    发明申请
    WINDING TYPE ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND POWER CONSUMPTION DEVICE 有权

    公开(公告)号：US20220285737A1

    公开(公告)日：2022-09-08

    申请号：US17547535

    申请日：2021-12-10

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Huihui SHANGGUAN ,  Daichun TANG ,  Xinxin DU ,  Ziyu BAI ,  Ruihuan QIN

    IPC: H01M10/0587 ,  H01M50/538

    Abstract: The embodiments of the present application provide a winding type electrode assembly including a positive electrode plate and a negative electrode plate; the positive electrode plate includes a first positive winding end portion and a positive winding middle section; the negative electrode plate includes a first portion and a second portion; and an active material layer of the negative electrode plate exceeds an active material layer of the positive electrode plate, and a difference between a maximum width of a negative active material layer of the first portion and a minimum width of a positive active material layer of the first positive winding end portion is larger than a difference between a maximum width of a negative active material layer of the second portion and a minimum width of a positive active material layer of the positive winding middle section.

    WINDING TYPE ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND POWER CONSUMPTION DEVICE
    6.
    发明公开
    WINDING TYPE ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY AND POWER CONSUMPTION DEVICE 审中-公开

    公开(公告)号：US20240088449A1

    公开(公告)日：2024-03-14

    申请号：US18509712

    申请日：2023-11-15

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Huihui SHANGGUAN ,  Daichun TANG ,  Xinxin DU ,  Ziyu BAI ,  Ruihuan QIN

    IPC: H01M10/0587 ,  H01M50/538

    CPC classification number: H01M10/0587 ,  H01M50/538 ,  H01M2220/20

    Abstract: The embodiments of the present application provide a winding type electrode assembly including a positive electrode plate and a negative electrode plate; the positive electrode plate includes a first positive winding end portion and a positive winding middle section; the negative electrode plate includes a first portion and a second portion; and an active material layer of the negative electrode plate exceeds an active material layer of the positive electrode plate, and a difference between a maximum width of a negative active material layer of the first portion and a minimum width of a positive active material layer of the first positive winding end portion is larger than a difference between a maximum width of a negative active material layer of the second portion and a minimum width of a positive active material layer of the positive winding middle section.

    ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND METHOD AND DEVICE FOR MANUFACTURING ELECTRODE ASSEMBLY
    8.
    发明申请
    ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND METHOD AND DEVICE FOR MANUFACTURING ELECTRODE ASSEMBLY 有权

    公开(公告)号：US20220246993A1

    公开(公告)日：2022-08-04

    申请号：US17717736

    申请日：2022-04-11

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Haizu JIN ,  Hu XU ,  Xinxin DU ,  Xing LI ,  Chengdu LIANG ,  Yuqun ZENG

    IPC: H01M10/0587

    Abstract: Embodiments of the present application provide an electrode assembly, a battery cell, a battery, and a method and a device for manufacturing an electrode assembly. The electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate and the second electrode plate are wound along a winding direction to form a winding structure, and the winding structure includes a bending region. The first electrode plate includes a first segment that exceeds a winding starting end of the second electrode plate, and at least a part of the first segment is configured to provide a support force to a part of the first electrode plate and the second electrode plate in the bending region and located at an outer side the first segment, making a structure of the first electrode plate and the second electrode plate more compact in the bending region.

Patent Agency Ranking