公开(公告)号：EP4216351A1

公开(公告)日：2023-07-26

申请号：EP21896167.0

申请日：2021-05-08

Applicant: BYD Company Limited

Inventor： WANG, Yongnan ,  CHEN, Hua ,  ZHENG, Weixin ,  LIAO, Zhengyuan

IPC: H01M50/244

Abstract: A battery tray (10), a battery pack, and an electric vehicle are provided. The battery tray (10) includes a tray body (100), a first protection plate (300), and a second protection plate (200). The first protection plate (300) includes an energy-absorbing plate (302) and high-strength plates (301) located on two sides of the energy-absorbing plate (302), and the energy-absorbing plate (302) is in a cellular structure. A wave impedance value of the second protection plate (200) is less than a wave impedance value of the high-strength plate.

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：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）。

公开(公告)号：EP4329058A3

公开(公告)日：2025-05-21

申请号：EP23220825.6

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: H01M50/209 ,  H01M50/249

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 Lo, a width Ho, 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 D/V=0.0000065 mm -2 to 0.00002 mm -2 .

公开(公告)号：EP4343943A1

公开(公告)日：2024-03-27

申请号：EP22848668.4

申请日：2022-07-29

Applicant: BYD Company Limited

Inventor： SHU, Yuanmao ,  WU, Yanfeng ,  ZHENG, Weixin ,  LU, Zhipei ,  SUN, Huajun

IPC: H01M50/289 ,  H01M50/503 ,  H01M50/204

Abstract: A battery assembly (100), a battery pack (200) and a vehicle (300) are provided. The battery assembly includes: multiple cells (110); a connecting member (40), where the cells is electrically connected to each other through the connecting member; and a thermally conductive member (30), where the cell has a housing (10), the thermally conductive member is provided between the connecting member and the housing, and the thermally conductive member is thermally conductively connected to the connecting member and the housing.

公开(公告)号：EP4329056A2

公开(公告)日：2024-02-28

申请号：EP23220823.1

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 L/V= 0.0005mm-2 to 0.002mm-2.

公开(公告)号：EP4220828A1

公开(公告)日：2023-08-02

申请号：EP21870984.8

申请日：2021-07-19

Applicant: BYD Company Limited

Inventor： WANG, Yongnan ,  ZENG, Yi ,  LIAO, Zhengyuan ,  LAI, Fuzhu ,  ZHENG, Weixin

IPC: H01M50/204 ,  H01M50/202 ,  H01M10/613 ,  H01M10/617 ,  H01M10/6556 ,  H01M10/6568

Abstract: A battery pack (1000) is provided, which includes a battery assembly (100) and a tray (200). The battery assembly includes at least one battery unit (1a), and the battery unit includes multiple cells (1), where the length direction of each cell is a first direction (F1), and the multiple cells are arranged in a second direction (F2). The tray includes at least one temperature adjustment unit (2a), where the temperature adjustment unit includes a temperature adjustment flow channel (201) and a confluence flow channel (202). Any one of the temperature adjustment flow channels exchanges heat with at least one of the cells arranged in the second direction, and exchanges heat with at most one cell arranged in the first direction.

公开(公告)号：EP3989307A1

公开(公告)日：2022-04-27

申请号：EP19934065.4

申请日：2019-07-24

Applicant: BYD Company Limited

Inventor： WANG, Longxing ,  WANG, Xiaolong ,  ZHENG, Weixin

IPC: H01M2/10 ,  H01M2/20

Abstract: A power battery pack and a vehicle are provided. The power battery pack includes: a tray and an upper cover, where the tray includes a side frame and a bottom plate, and the upper cover and the bottom plate are respectively connected to upper and lower ends of the side frame to define a battery accommodating cavity; and a plurality of cells, where the plurality of cells are mounted in the battery accommodating cavity, one surface of each of the cells and the upper cover are bonded by a structural adhesive, and the other opposite surface of the cell and the bottom plate are bonded by a thermally conductive structural adhesive.

公开(公告)号：EP3360195A1

公开(公告)日：2018-08-15

申请号：EP16867942.1

申请日：2016-11-21

Applicant: BYD Company Limited

Inventor： LIU, Desheng ,  PENG, Qingbo ,  ZHENG, Weixin ,  ZHU, Jianhua ,  ZHU, Yan

IPC: H01M10/613

CPC classification number: H01M10/613 ,  B60L11/1874 ,  B60L11/1879 ,  B60L2240/549 ,  H01M2/1077 ,  H01M10/625 ,  H01M10/6552 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6567 ,  H01M2220/20 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T90/16

Abstract: A power battery pack and an electrical vehicle including the same are provided. The power battery pack includes: a tray; a plurality of battery modules disposed in the tray, and including a first battery module disposed on the tray and a second battery module stacked on the first battery module; a second module cooling plate disposed outside of the second battery module, and including a first bottom plate and a first side plate; and a first side heat-conducting plate disposed at an outer side of the first side plate and heat-conductively connected therewith, wherein both the first bottom plate and the first side plate have a heat pipe disposed therein respectively, the heat pipes of the first bottom plate and the first side plate are in communication with each other; and the first side heat-conducting plate has a heat pipe disposed therein and heat-conductively connected to the tray.

公开(公告)号：EP2210295B1

公开(公告)日：2018-07-04

申请号：EP08867675.4

申请日：2008-12-24

Applicant: BYD Company Limited

Inventor： ZHENG, Weixin ,  JIANG, Luxia ,  ZHU, Jianhua ,  SHEN, Xi

IPC: H01M2/06 ,  H01M2/08 ,  H01M2/22 ,  H01M2/34 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/6553 ,  H01M2/20 ,  H01M10/04 ,  H01M10/625

CPC classification number: H01M2/348 ,  H01M2/043 ,  H01M2/046 ,  H01M2/0473 ,  H01M2/06 ,  H01M2/08 ,  H01M2/206 ,  H01M2/22 ,  H01M2/305 ,  H01M6/5038 ,  H01M10/0422 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6553 ,  Y02E60/12 ,  Y02E60/122 ,  Y02T10/7011

Abstract: An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length Lcore and a width Wcore and each connector has a width Wconnector. The length of the coiled core Lcore, width of the coiled core Wcore, and width of each connector Wconnector have the relationship 0core-Wconnector)/Lcore