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    LITHIUM-ION BATTERY
    1.
    发明申请
    LITHIUM-ION BATTERY 审中-公开
    锂离子电池

    公开(公告)号：WO2012048652A1

    公开(公告)日：2012-04-19

    申请号：PCT/CN2011/080764

    申请日：2011-10-13

    Applicant: BYD COMPANY LIMITED ,  WU, Guanglin ,  SUN, Huajun ,  PAN, Liying

    Inventor： WU, Guanglin ,  SUN, Huajun ,  PAN, Liying

    IPC: H01M10/0525 ,  H01M2/30 ,  H01M2/20

    CPC classification number: H01M2/06 ,  H01M2/30 ,  H01M2/32 ,  H01M10/0525 ,  H01M2200/103 ,  H01M2200/106

    Abstract: A lithium-ion battery may be provided. The lithium-ion battery may comprise: a housing (4) defining an opening end, a cover assembly (42a, 42b) sealing the opening end, a positive terminal (11) and a negative terminal (21), a battery core (3) positioned within the housing (4), an electrolyte filled within a space formed by the housing (4) and the cover assembly (42a, 42b); and an electrical protection element (9) electrically connected between the negative terminal (21) and one of the cover assembly (42a, 42b) and the housing (4).

    Abstract translation: 可以提供锂离子电池。 锂离子电池可以包括：限定开口端的壳体（4），密封开口端的盖组件（42a，42b），正端子（11）和负端子（21），电池芯（3） ），位于由壳体（4）和盖组件（42a，42b）形成的空间内的电解质; 以及电连接在负极端子（21）与盖组件（42a，42b）和壳体（4）中的一个之间的电气保护元件（9）。

    END COVER ASSEMBLY AND LITHIUM SECONDARY BATTERY HAVING THE SAME
    2.
    发明申请
    END COVER ASSEMBLY AND LITHIUM SECONDARY BATTERY HAVING THE SAME 审中-公开
    端盖组装和锂二次电池

    公开(公告)号：WO2010091628A1

    公开(公告)日：2010-08-19

    申请号：PCT/CN2010/070576

    申请日：2010-02-09

    Applicant: SHANGHAI BYD COMPANY LIMITED ,  CHE, Guoyong ,  SUN, Huajun

    Inventor： CHE, Guoyong ,  SUN, Huajun

    IPC: H01M2/04 ,  H01M10/0525

    CPC classification number: H01M2/348 ,  H01M2/0413 ,  H01M2/1241 ,  H01M2200/00 ,  H01M2200/10 ,  H01M2200/106

    Abstract: An end cover assembly (100) for a lithium secondary battery is provided. The assembly (100) comprises: a sealing member (2) having an accommodating portion (21) therein for accommodating an upper cap (1), a thermal-sensitive member (7) disposed under the upper cap (1), and a metal bottom plate (6) disposed under the thermal sensitive member (7). A skirt portion (61) of the metal bottom plate (6) is flanged upwardly to wrap the thermal-sensitive member (7) and the upper cap (1) respectively with an insulating member (8) being disposed between the upper cap (1) and the metal bottom plate (6) for preventing the upper cap (1) from electrically contacting the metal bottom plate (6). Further, a lithium ion battery (200) having the end cover assembly (100) as described above is provided.

    Abstract translation: 提供了一种用于锂二次电池的端盖组件（100）。 组件（100）包括：密封构件（2），其中具有用于容纳上盖（1）的容纳部分（21），设置在上盖（1）下方的热敏构件（7） 设置在热敏元件（7）下方的底板（6）。 金属底板（6）的裙部（61）向上凸缘以分别包裹热敏元件（7）和上盖（1），绝缘元件（8）设置在上盖（1） ）和用于防止上盖（1）与金属底板（6）电接触的金属底板（6）。 此外，提供具有如上所述的端盖组件（100）的锂离子电池（200）。

    INSULATING RING AND LITHIUM ION BATTERY HAVING THE SAME
    4.
    发明申请
    INSULATING RING AND LITHIUM ION BATTERY HAVING THE SAME 审中-公开
    绝缘环和锂离子电池

    公开(公告)号：WO2010060321A1

    公开(公告)日：2010-06-03

    申请号：PCT/CN2009/074265

    申请日：2009-09-27

    Applicant: BYD COMPANY LIMITED ,  SUN, Huajun ,  WANG, Yun

    Inventor： SUN, Huajun ,  WANG, Yun

    IPC: H01M2/14 ,  H01M10/38

    CPC classification number: H01M10/0525 ,  H01M2/022 ,  H01M2/0235 ,  H01M2/046 ,  H01M2/347 ,  H01M10/058

    Abstract: The present invention discloses an insulating ring for a lithium ion battery, comprising: a circular ring body; a core rod positioning member configured at a central part of the circular ring body for positioning a core rod of the lithium ion 5 battery; and at least a tab hole configured to be adjacent to the core rod positioning member through which a tab of the core rod is penetratable. Further, a lithium ion battery having the insulating ring is also disclosed. With the present invention, battery safety performance is enhanced greatly.

    Abstract translation: 本发明公开了一种用于锂离子电池的绝缘环，包括：圆环体; 芯棒定位构件，其构造在所述圆环体的中心部分，用于定位所述锂离子5电池的芯棒; 并且至少一个突出孔构造成与所述芯棒定位构件相邻，所述芯棒的突片穿过所述芯棒定位构件可穿透。 此外，还公开了具有绝缘环的锂离子电池。 利用本发明，电池安全性能大大提高。

    HEATING SYSTEM FOR POWER BATTERY, AND ELECTRIC VEHICLE
    6.
    发明公开
    HEATING SYSTEM FOR POWER BATTERY, AND ELECTRIC VEHICLE 审中-公开

    公开(公告)号：EP4517934A1

    公开(公告)日：2025-03-05

    申请号：EP23795558.8

    申请日：2023-04-27

    Applicant: BYD Company Limited

    Inventor： ZHANG, Ke ,  GUO, Zizhu ,  PAN, Yi ,  ZHU, Yan ,  SUN, Huajun

    IPC: H01M10/615 ,  H01M10/625 ,  H01M10/637 ,  B60L58/27

    Abstract: The present disclosure provides a heating system for a power battery, and an electric vehicle. The power battery comprises a first cell group and a second cell group connected in series. The heating system comprises an inverter, an AC motor, a first controller, and a plurality of connection lines. The midpoints of three bridge arms of the inverter are connected to the head ends of three-phase coils of the AC motor in a one-to-one correspondence. The tail ends of the AC motor are connected together to form a neutral point. First ends of the connection lines are connected to the neutral point of the AC motor. Second ends of the connection lines are connected to a connection point between the first cell group and the second cell group. The first controller is configured to input a drive signal to the inverter. The first cell group, the second cell group, the inverter, the AC motor, and the connection lines form an AC self-heating loop.

    DRY PROCESS-BASED BATTERY POLE PIECE AND BATTERY
    9.
    发明公开
    DRY PROCESS-BASED BATTERY POLE PIECE AND BATTERY 审中-公开

    公开(公告)号：EP4333097A1

    公开(公告)日：2024-03-06

    申请号：EP22841451.2

    申请日：2022-07-14

    Applicant: BYD Company Limited

    Inventor： HU, Yiwei ,  GUO, Zizhu ,  PAN, Yi ,  ZHANG, Jianchang ,  SUN, Huajun

    IPC: H01M4/13

    Abstract: A dry battery electrode plate and a battery are provided. The dry battery electrode plate includes: a metal current collector and a self-supporting electrode film. The metal current collector is provided with pores. The self-supporting electrode film includes a first electrode film and a second electrode film. The first electrode film is arranged on one side of the metal current collector. The second electrode film is arranged on one side of the metal current collector facing away from the first electrode film. The first electrode film and the second electrode film are configured to be press-fit connected by an external force. The first electrode film and the second electrode film are attached to the metal current collector. The first electrode film and the second electrode film are connected to each other at positions corresponding to the pores.

    POWER BATTERY PACK AND ELECTRIC VEHICLE
    10.
    发明公开
    POWER BATTERY PACK AND ELECTRIC VEHICLE 审中-公开

    公开(公告)号：EP4329057A2

    公开(公告)日：2024-02-28

    申请号：EP23220824.9

    申请日：2019-06-21

    Applicant: BYD Company Limited

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

    IPC: H01M50/103

    Abstract: The present invention basically relates to a power battery pack, configured to provide power for an electric vehicle and comprising: a pack body; a plurality of cells, disposed in the pack body, the cell having a length L 0 , a width H 0 , and a thickness D 0 , wherein L 0 >H 0 ≥D 0 ; when the power battery pack is placed on the electric vehicle, a length direction of the cell extends along a width direction or a length direction of the electric vehicle; when the length direction of the cell extends along the width direction of the electric vehicle, the length L 0 of the cell and a size W of a vehicle body of the electric vehicle in the width direction meet: 46%≤L 0 /W≤76%; or when the length direction of the cell extends along the length direction of the electric vehicle, the length L 0 of the cell and a size X of the vehicle body of the electric vehicle in the length direction meet: 40%≤L 0 /X≤76%, at least one of the cells, comprising a battery body, the battery body having a length L, a width H, a thickness D, and a volume V, the length L of the battery body being greater than the width H, and the width H of the battery body being greater than the thickness D, wherein the battery body meets: 400mm≤L≤2500mm and H/V=0.0001 mm -2 to 0.00015 mm -2 .

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