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    MULTILAYER ELECTRODE PLATE AND NEGATIVE ELECTRODE USING SAME, BATTERY AND POWER CONSUMING DEVICE
    25.
    发明公开
    MULTILAYER ELECTRODE PLATE AND NEGATIVE ELECTRODE USING SAME, BATTERY AND POWER CONSUMING DEVICE 审中-公开

    公开(公告)号：US20230327120A1

    公开(公告)日：2023-10-12

    申请号：US18208335

    申请日：2023-06-12

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Fang LUO ,  Huan CHE ,  Wei CHEN ,  Shisong LI

    IPC: H01M4/62

    CPC classification number: H01M4/622 ,  H01M2004/027

    Abstract: The present application discloses an electrode plate for a battery, a battery and a power consuming device. The electrode plate for a battery may comprise: a substrate, at least one binding layer and at least one barrier layer laminated in sequence on the substrate, wherein the binding layer and the barrier layer may be distributed alternately in the thickness direction; the binding layer may comprise a first binder; and the barrier layer may comprise a multi-component copolymer different from the first binder and an optional second binder, identical to or different from the first binder in the binding layer, wherein the multi-component copolymer may be a linear multi-component copolymer.

    Electrode Plate, Electrode Assembly, Battery Cell, Battery, and Electric Appliance
    26.
    发明申请
    Electrode Plate, Electrode Assembly, Battery Cell, Battery, and Electric Appliance 有权

    公开(公告)号：US20230123434A1

    公开(公告)日：2023-04-20

    申请号：US17939961

    申请日：2022-09-08

    Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

    Inventor： Huan CHE ,  Wei CHEN ,  Shisong LI

    IPC: H01M4/58

    Abstract: An electrode plate includes a current collector and an active substance layer disposed on a surface of at least one side of the current collector. The active substance layer has a first active substance region and a second active substance region. A sectional area of the second active substance region in a preset section is smaller than a sectional area of the active substance layer in the preset section. The preset section is parallel to a preset surface and passes through the second active substance region. The preset surface is a surface of the current collector at which the active substance layer is located. A porosity of the first active substance region is smaller than a porosity of the second active substance region. Pores in the first active substance region and in the second active substance region all have a pore size smaller than or equal to 1 μm.

    BATTERY
    27.
    发明申请
    BATTERY 审中-公开

    公开(公告)号：US20200161640A1

    公开(公告)日：2020-05-21

    申请号：US16422872

    申请日：2019-05-24

    Applicant: Contemporary Amperex Technology Co., Limited

    Inventor： Wei LI ,  Haihao SHI ,  Huihui LIU ,  Chao JIN ,  Tianyi GAO ,  Jianbao XU ,  Shisong LI ,  Chao GUO

    IPC: H01M4/36 ,  H01M4/62

    Abstract: The present invention relates to a battery, comprising a positive electrode plate, a separator and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active materials on at least one surface of the positive electrode current collector in which the underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material, and a first conductive material and in which the upper positive active material layer comprises a second positive active material, a second polymer material, and a second conductive material and the first polymer material comprises an oil-dispersible polymer material having a solubility in NMP at 130° C. for 5 minutes, which is 30% or less of the solubility of PVDF under the same conditions. The battery exhibits good safety performance and improved electrical performance.

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