公开(公告)号：EP4331896A1

公开(公告)日：2024-03-06

申请号：EP22874360.5

申请日：2022-07-06

Applicant: BYD Company Limited

Inventor： ZHANG, Ke ,  E, Congji ,  GUO, Zizhu ,  PAN, Yi ,  LU, Zhipei

IPC: B60L50/60 ,  B60L58/10

Abstract: A battery pack and a vehicle are provided. The battery pack is configured to provide electric energy required by the vehicle under different operating conditions. The battery pack includes a task manager, a first battery unit and a second battery unit. The first battery unit and the second battery unit respectively respond to a different operating state of a load and provide the electric energy required under the control of the task manager.

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 .

公开(公告)号：EP4254603A1

公开(公告)日：2023-10-04

申请号：EP21916988.5

申请日：2021-05-13

Applicant: BYD Company Limited

Inventor： FENG, Jiamao ,  LU, Zhipei ,  XU, Huabing ,  LI, Huabiao

IPC: H01M10/613 ,  H01M10/617 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6568

Abstract: The present invention relates to a battery pack and a vehicle. The battery pack includes a liquid cooling plate (1), and a battery stack (3) including at least one battery module (31). The liquid cooling plate (1) includes a liquid cooling plate body (11), a liquid inlet (12) and a liquid outlet (13). The liquid cooling plate body (11) is internally provided with a liquid cooling circuit, which includes a peripheral liquid inflow channel (111), an effluent liquid collecting channel (112), and an intermediate channel (113) communicating between the peripheral liquid inflow channel (111) and the effluent liquid collecting channel (112). The liquid inlet (12) is connected onto the liquid cooling plate body (11) and communicates with the peripheral liquid inflow channel (111). The liquid outlet (13) is connected onto the liquid cooling plate body (11) and communicates with the effluent liquid collecting channel (112). At a low temperature, the battery pack of the present invention matches the heating requirements of different areas, and gives more heat to the peripheral area of the battery pack, to control the temperature difference in the battery pack.

公开(公告)号：EP4223574A1

公开(公告)日：2023-08-09

申请号：EP21908443.1

申请日：2021-05-12

Applicant: BYD Company Limited

Inventor： WAN, Long ,  LU, Zhipei ,  PENG, Qingbo ,  WU, Lei

IPC: B60L3/00 ,  B60L50/64 ,  H01M50/249 ,  H01M50/244 ,  H01M10/48

Abstract: A battery pack protection system (100) and a vehicle are provided. The battery pack protection system includes a battery pack (1) and a protective plate (2). The battery pack (1) includes a tray (11). The tray (11) includes a frame (13) and a bottom plate (12). Battery modules are arranged on the bottom plate (12). The protective plate (2) is arranged parallel to the bottom plate (12), and the protective plate (2) is close to a side of the bottom plate (12). At least one sensor (3) is arranged on the protective plate (2). The protective plate (2) is detachably connected to the frame (13).

公开(公告)号：EP4068496A1

公开(公告)日：2022-10-05

申请号：EP20907650.4

申请日：2020-10-23

Applicant: BYD Company Limited

Inventor： LU, Peng ,  LU, Zhipei ,  WANG, Xinyue ,  DENG, Dongjun ,  ZHU, Yan

IPC: H01M50/572

Abstract: A cover plate assembly, a battery, a battery module, a power battery pack, and an electric vehicle are disclosed. The cover plate assembly includes a cover plate body (1), a first electrode terminal (2), a second electrode terminal, and a resistive coating (3). The second electrode terminal is insulatively connected with the cover plate body (1). The first electrode terminal (2) is electrically connected with the cover plate body (1) by the resistive coating (3). The resistive coating (3) includes a weak portion (331). When a current flowing through the resistive coating (3) is greater than a predetermined threshold, the weak portion (331) is melted to disconnect the cover plate body (1) from the first electrode terminal (2).

公开(公告)号：EP3933955A1

公开(公告)日：2022-01-05

申请号：EP19919444.0

申请日：2019-07-25

Applicant: BYD Company Limited

Inventor： SUN, Huajun ,  LU, Zhipei ,  TANG, Jianglong ,  JIANG, Wenfeng ,  ZHU, Yan

IPC: H01M2/10

Abstract: The present disclosure relates to a power battery pack, an energy storage device, an electric vehicle. The power battery pack includes an accommodating device (200) and a plurality of cells (100), the accommodating device (200) includes a plurality of accommodating regions, and each accommodating region has a first side edge (201) and a second side edge (202) and cells (100) disposed between the first side edge and the second side edge. A distance between the first side edge (201) and the second side edge (202) along a first direction varies with different accommodating regions, each cell (100) includes a first end and a second end, and a distance between the first end and the second end matches a distance between a corresponding first side edge (201) and a corresponding second side edge (202).

公开(公告)号：EP3907775A1

公开(公告)日：2021-11-10

申请号：EP19908966.5

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: H01M2/10 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6568 ,  B60L50/64

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body; and a plurality of cells, directly arranged in the pack body. The cell extends from a first side of the pack body to a second side of the pack body, and the first side and the second side are disposed opposite to each other. The first side of the pack body is provided with a first side wall, the second side of the pack body is provided with a second side wall, an end of the cell is supported by the first side wall, and the other end of the cell is supported by the second side wall.

公开(公告)号：EP3905369A1

公开(公告)日：2021-11-03

申请号：EP19902817.6

申请日：2019-07-30

Applicant: BYD Company Limited

Inventor： REN, Zhenghua ,  LU, Zhipei ,  GUO, Kun ,  PENG, Qingbo ,  ZHU, Yan

IPC: H01M2/10

Abstract: The present disclosure relates to a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate (10) and a side beam (20), and the side beam (20) is disposed around the base plate (10) and defines, together with the base plate (10), an accommodating space for battery cells (200). The base plate (10) is formed therein with an air passage, and the base plate (10) is provided with several inlet vents (31) and at least one exhaust vent. The inlet vent (31) is configured to introduce a flame, smoke or gas discharged from the battery cell (200) into the air passage, and the exhaust vent is configured to discharge the flame, smoke or gas inside the air passage.

公开(公告)号：EP3726624A1

公开(公告)日：2020-10-21

申请号：EP18888554.5

申请日：2018-12-13

Applicant: BYD Company Limited

Inventor： LU, Zhipei ,  JIANG, Luxia

IPC: H01M2/34

Abstract: A battery system and an electric vehicle are provided. The battery system includes at least one series circuit, at least one first battery pack being disposed in the series circuit, the first battery pack including at least two first cells connected in parallel, a current interrupt device, wherein the current interrupt device is disposed on the first cell being configured to interrupt an internal current of the first cell when the first cell is abnormal.

公开(公告)号：EP3238307A1

公开(公告)日：2017-11-01

申请号：EP15871948.4

申请日：2015-12-22

Applicant: BYD Company Limited

Inventor： PENG, Qingbo ,  ZHENG, Weixin ,  LU, Zhipei ,  ZHU, Yan ,  ZHU, Jianhua

IPC: H01R4/58 ,  H01M2/20

CPC classification number: H01M2/206 ,  B23K20/06 ,  B23K20/233 ,  B23K20/2336 ,  B23K2201/36 ,  B23K2203/10 ,  B23K2203/12 ,  H01M2220/20 ,  H01R4/625 ,  H01R11/288 ,  H01R31/06 ,  H01R43/0207

Abstract: The present disclosure discloses a battery connection sheet, including: a first part, including a first metal sheet, a first buffer portion and a first connection portion, and a second part, including a second metal sheet connected with the first connection portion via electromagnetic pulse welding.

Abstract translation: 一种电池连接片（6），包括：第一部分，包括第一金属片（1），第一缓冲部分（3）和第一连接部分（7）; 以及第二部分，包括通过电磁脉冲焊接与第一连接部分连接的第二金属片（2）。