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    Battery unit, battery module and vehicle
    11.
    发明授权
    Battery unit, battery module and vehicle 有权

    公开(公告)号：US11824213B2

    公开(公告)日：2023-11-21

    申请号：US17425914

    申请日：2020-01-21

    Applicant: BYD COMPANY LIMITED

    Inventor： Xinyue Wang ,  Han Cheng ,  Yan Zhu

    IPC: H01M50/176 ,  H01M50/15 ,  H01M50/531 ,  H01M50/50

    CPC classification number: H01M50/176 ,  H01M50/15 ,  H01M50/50 ,  H01M50/531 ,  H01M2220/20

    Abstract: The present application provides a battery unit, a battery module, and a vehicle. The battery unit includes a housing, a cover plate, a first battery post, a second battery post, and an electrode core. The housing is provided with an opening. The cover plate covers the opening. The electrode core is disposed inside the housing. The cover plate includes a cover plate body and a concave cavity portion that is concave inward relative to an outer surface of the cover plate body. The first battery post is accommodated in the concave cavity portion. A first electrode tab of the electrode core is electrically connected to the first battery post. The second battery post is electrically connected to the cover plate body. A second electrode tab of the electrode core is electrically connected to the cover plate body.

    Power battery pack
    12.
    发明授权
    Power battery pack 有权

    公开(公告)号：US10916750B2

    公开(公告)日：2021-02-09

    申请号：US16335186

    申请日：2017-06-08

    Applicant: BYD COMPANY LIMITED

    Inventor： Jiyang Zhao ,  Qing Lai ,  Yanzi Ren ,  Jianhua Zhu ,  Yan Zhu

    IPC: H01M4/02 ,  H01M2/10 ,  H01M10/613 ,  H01M10/6568 ,  H01M2/12

    Abstract: The present disclosure provides a power battery pack, including: a battery pack case, at least one battery module, and a return pipe. An oil inlet and an oil outlet are formed on the battery pack case, and insulation oil is charged from the oil inlet into the battery pack case. Each of the at least one battery module is disposed in the battery pack case, and each battery module includes a module case and at least one unit cell disposed in the module case. The unit cell is immersed in the insulation oil, and the bottom of the module case is provided with a through hole and the top of the module case is provided with at least one exhaust vent. The return pipe is disposed outside the battery pack case, and the return pipe is connected between the oil outlet and the oil inlet.

    Power battery module with detachable separators
    13.
    发明授权
    Power battery module with detachable separators 有权

    公开(公告)号：US10243181B2

    公开(公告)日：2019-03-26

    申请号：US15188446

    申请日：2016-06-21

    Applicant: BYD COMPANY LIMITED

    Inventor： Jiyang Zhao ,  Qing Lai ,  Zhiwei Tong ,  Yan Zhu ,  Jianhua Zhu

    IPC: H01M2/10 ,  H01M10/658 ,  H01M10/6551 ,  H01M2/20

    Abstract: A power battery module includes a battery accommodating assembly having a plurality of separators, each separator comprising: a separator body having a front portion defining a front accommodating groove and a rear portion; a left cover; a right cover, a battery group, a power connection member, a power connection line and a line snap-fit; in which adjacent separators are detachably connected with each other, and the front accommodating groove of one of the adjacent separators and the rear portion of the separator body of the other of the adjacent separators define a battery chamber, and a snapping hole is formed in at least one of upper and lower walls of the front accommodating groove.

    BATTERY, BATTERY MODULE, BATTERY PACK AND VEHICLE
    14.
    发明申请
    BATTERY, BATTERY MODULE, BATTERY PACK AND VEHICLE 有权

    公开(公告)号：US20250046942A1

    公开(公告)日：2025-02-06

    申请号：US18902375

    申请日：2024-09-30

    Applicant: BYD COMPANY LIMITED

    Inventor： Huajun SUN ,  Xinyue Wang ,  Wansong Yuan ,  Yan Zhu ,  Pingan Duan

    IPC: H01M50/342 ,  H01M50/249

    Abstract: A vehicle has a battery pack. The battery pack includes a battery or a battery module. The battery includes a battery shell and an explosion-proof valve. The explosion-proof valve is arranged on the battery shell. The volume of the battery is V, and the unit of V is mm3. The explosion-proof valve is provided with a notch groove, and the explosion-proof valve has an opening region. In a depth direction of the notch groove, an outer edge of the orthographic projection of the opening region is a predetermined opening boundary, the area of the orthographic projection of the opening region is S, and the unit of S is mm2. S and V satisfy 0.3 mm−1≤(5000×S)/V≤6 mm−1.

    Battery pack, vehicle and energy storage device
    17.
    发明授权
    Battery pack, vehicle and energy storage device 有权

    公开(公告)号：US11183729B2

    公开(公告)日：2021-11-23

    申请号：US17048947

    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: H01M50/209 ,  H01M50/249 ,  H01M50/383 ,  B60K1/04

    Abstract: A battery pack, a vehicle, and an energy storage device. The battery pack includes a housing with a first direction and a second direction perpendicular to the first direction. The battery pack housing includes at least one rectangular cell accommodating unit is formed therein. The battery pack also includes a plurality of rectangular cells, and has a dimension greater than or equal to 600 mm along the first direction. The plurality of rectangular cells are arranged in the rectangular cell accommodating unit along the second direction. The rectangular cell has a thickness of D, length of L, and height of H. A length direction of at least one rectangular cell extends from one side of the rectangular cell accommodating unit to its other side along the first direction, and meets: L>H, L>D, 600 mm≤L≤2500 mm, 23≤L/D≤208.

    Protection device used in battery pack, battery pack and vehicle
    18.
    发明授权
    Protection device used in battery pack, battery pack and vehicle 有权

    公开(公告)号：US11056748B2

    公开(公告)日：2021-07-06

    申请号：US16474828

    申请日：2017-07-05

    Applicant: BYD COMPANY LIMITED

    Inventor： Jianhua Zhu ,  Qing Lai ,  Zhiwei Tong ,  Yan Zhu

    IPC: H01M2/34 ,  H01M50/209 ,  H01M50/578 ,  H01M50/581

    Abstract: A battery pack comprises a plurality of batteries. The protection device is disposed between two adjacent batteries and comprises: a first connecting assembly, a second connecting assembly and a conductive connecting assembly. The protection device has a normal state and an alarm state. When the protection device is in the normal state, the first connecting assembly and the second connecting assembly are spaced apart, and the overload protection circuit is open. When the protection device is in the alarm state, the first connecting assembly is electrically connected with the housing of the first battery, the second connecting assembly is electrically connected with the housing of the second battery, at least one of the first connecting assembly and the second connecting assembly moves to be electrically connected with each other, and the overload protection circuit is closed.

    Single-cell battery, battery module, power battery, and electric vehicle
    19.
    发明授权
    Single-cell battery, battery module, power battery, and electric vehicle 有权

    公开(公告)号：US10804522B2

    公开(公告)日：2020-10-13

    申请号：US16110548

    申请日：2018-08-23

    Applicant: BYD COMPANY LIMITED

    Inventor： Peng Lu ,  Luxia Jiang ,  Shichao Hu ,  Jianhua Zhu ,  Yan Zhu

    IPC: H01M2/34 ,  B60L50/64 ,  H01M2/04 ,  H01M2/26 ,  H01M2/12

    Abstract: The present disclosure discloses a single-cell battery, a battery module, a power battery, and an electric vehicle. The single-cell battery includes a case, a battery cell accommodated in the case, an electrode terminal electrically connected to the battery cell, and a cover plate for sealing the case. The electrode terminal is disposed on the cover plate. The electrode terminal includes a battery post passing through the cover plate and electrically connected to the battery cell with an internal guide member. The single-cell battery further includes a current interruption device mounted on the battery post. The current interruption device includes a flipping member in communication with gas inside the case. The flipping member is connected to an outer end surface of the battery post with a connection point. The connection point is configured to be disconnected under action of air pressure.

    Battery, battery module, battery pack and electric vehicle
    20.
    发明授权
    Battery, battery module, battery pack and electric vehicle 有权

    公开(公告)号：US10777791B1

    公开(公告)日：2020-09-15

    申请号：US16707837

    申请日：2019-12-09

    Applicant: BYD COMPANY LIMITED

    Inventor： Chuanfu Wang ,  Long He ,  Huajun Sun ,  Jianhua Zhu ,  Zhipei Lu ,  Yan Zhu ,  Shichao Hu

    IPC: H01M2/10 ,  H01M2/36 ,  B60L50/64

    Abstract: A battery includes a case and a battery core assembly disposed in the case, the battery core assembly includes a plurality of battery core groups and an receiving space holding the plurality of battery core groups, the battery core groups are connected in series, and the battery core group includes at least one battery core; a separator plate is disposed between at least two adjacent battery core groups, the separator plate divides the receiving space into a plurality of receiving cavities, each of the receiving cavities holds one or more battery core groups, and a cavity wall of the receiving cavity comprised by a connection of the separator plate and a separation membrane; and the battery further includes a liquid injection channel and the liquid injection channel in a sealed state, the liquid injection channel is disposed on at least one of the separation membranes and the separator plates.

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