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    POWER BATTERY PACK AND ELECTRIC VEHICLE
    11.
    发明申请
    POWER BATTERY PACK AND ELECTRIC VEHICLE 有权

    公开(公告)号：US20220118840A1

    公开(公告)日：2022-04-21

    申请号：US17421875

    申请日：2019-06-21

    Applicant: BYD COMPANY LIMITED

    Inventor： Long HE ,  Huajun SUN ,  Wenfeng JIANG ,  Zhipei LU ,  Weixin ZHENG ,  Jianglong TANG ,  Yan ZHU ,  Xinyue WANG ,  Kefeng HE

    IPC: B60K1/04 ,  B60L50/64 ,  B60L50/60 ,  H01M50/317 ,  H01M50/249 ,  H01M50/209 ,  H01M50/119

    Abstract: A power battery pack includes: a pack body; a plurality of cells, disposed in the pack body; the cell having a length L0, a width H0, and a thickness D0, where at least one cell meets: L0>H0≥D0, a length direction of the cell is arranged along a width direction of a vehicle body of the electric vehicle, and in the width direction of the electric vehicle, the length L0 of the cell and a size W of the vehicle body of the electric vehicle in the width direction meet: 46%≤L0/W≤76%; or at least one cell meets: L0>H0≥D0, a length direction of the cell is arranged along a length direction of a vehicle body of the electric vehicle, and in the length direction of the electric vehicle, the length L0 of the cell and a size X of the vehicle body of the electric vehicle in the length direction meet: 40%≤L0/W≤76%.

    ELECTRODE, AND PREPARATION METHOD THEREFOR AND BATTERY
    13.
    发明公开
    ELECTRODE, AND PREPARATION METHOD THEREFOR AND BATTERY 审中-公开

    公开(公告)号：US20240290970A1

    公开(公告)日：2024-08-29

    申请号：US18399468

    申请日：2023-12-28

    Applicant: BYD COMPANY LIMITED

    Inventor： Xiaotao YUAN ,  Zhan XU ,  Peixing CHEN ,  Xuanwei WU ,  Kefeng HE

    IPC: H01M4/58 ,  H01M4/02 ,  H01M4/1397

    CPC classification number: H01M4/5825 ,  H01M4/1397 ,  H01M2004/021 ,  H01M2004/027 ,  H01M2004/028

    Abstract: An electrode includes n electrode plate layers sequentially stacked. The electrode plate layer close to a membrane side of the battery is the 1st layer, and the electrode plate layer close to a current collector side is the nth layer. N is a natural number greater than or equal to 2. An electrode material of the electrode plate layer at the 1st layer includes first particles, and an electrode material of the electrode plate layer at each layer from the 2nd layer to the nth layer includes at least the first particles and second particles. An average particle size of the first particles is greater than an average particle size of the second particles. Porosity of the electrode plate layers gradually increases layer by layer in a direction from the nth layer to the 1st layer.

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