公开(公告)号：EP3506385A1

公开(公告)日：2019-07-03

申请号：EP17852173.8

申请日：2017-06-08

Applicant: BYD Company Limited

Inventor： ZHAO, Jiyang ,  LAI, Qing ,  REN, Yanzi ,  ZHU, Jianhua ,  ZHU, Yan

IPC: H01M2/10

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 has a through hole and the top of the module case has 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.

公开(公告)号：EP3278382A1

公开(公告)日：2018-02-07

申请号：EP16771397.3

申请日：2016-03-31

Applicant: BYD Company Limited

Inventor： JIANG, Luxia ,  YANG, Keli ,  ZHU, Yan ,  ZHU, Jianhua

IPC: H01M2/20 ,  H01M2/26 ,  H01M2/04 ,  H01M2/24 ,  H01M2/34 ,  H01M10/0525 ,  H01R11/28

CPC classification number: H01M2/263 ,  H01M2/0426 ,  H01M2/24 ,  H01M2/34 ,  H01M10/0525 ,  H01M2200/10 ,  H01R11/28

Abstract: The present disclosure discloses an electric connector and a battery comprising the same. The electric connector includes a leading-out sheet, and a plurality of connecting sheets welded to the leading-out sheet, each connecting sheet comprising at least two welding portions; wherein the leading-out sheet and each connecting sheet are separate parts. The electric connector according to the present disclosure is convenient in welding, simple in structure, low in process cost, stable and reliable in structure and high in safety.

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：EP3063823B1

公开(公告)日：2017-10-25

申请号：EP14877219.7

申请日：2014-12-29

Applicant: BYD Company Limited

Inventor： ZHAO, Jiyang ,  LAI, Qing ,  TONG, Zhiwei ,  ZHU, Yan ,  ZHU, Jianhua

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

CPC classification number: H01M2/1077 ,  H01M2/1022 ,  H01M2/202 ,  H01M10/6551 ,  H01M10/658 ,  H01M2220/20

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.

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：EP4525172A1

公开(公告)日：2025-03-19

申请号：EP23803013.4

申请日：2023-05-11

Applicant: BYD Company Limited

Inventor： SUN, Huajun ,  WANG, Xinyue ,  YUAN, Wansong ,  ZHU, Yan ,  DUAN, Pingan

IPC: H01M50/342 ,  H01M50/249

Abstract: A vehicle, having a battery pack. The battery pack comprises a battery or a battery module. The battery comprises 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 mm 3 . 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 mm 2 . S and V satisfy 0.3mm -1 ≤(5000 X S)/V≤6mm -1 .

公开(公告)号：EP4525170A1

公开(公告)日：2025-03-19

申请号：EP23802997.9

申请日：2023-05-11

Applicant: BYD Company Limited

Inventor： ZHU, Yan ,  SUN, Zenan ,  LIU, Xufeng ,  WANG, Xinyue

IPC: H01M50/342

Abstract: A vehicle provided with a battery pack, the battery pack comprising a battery or a battery module, the battery comprising an explosion-proof valve, the explosion-proof valve comprising an explosion-proof valve body, an edge of the explosion-proof valve body being provided with a connection segment, the explosion-proof valve body being provided with a notched groove, the explosion-proof valve body being provided with an opening area, and the opening area being located on the radial inner side of the connection segment. In the depth direction of the notched groove, the shape of the orthographic projection of the explosion-proof valve body and the shape of the orthographic projection of the opening area are both non-circular, the outer edge of the orthographic projection of the opening area is a predetermined opening boundary, the area of the orthographic projection of the opening area is S opening , the area of the orthographic projection of the connection segment is S connection , the area of the orthographic projection of the explosion-proof valve body is S total , and S opening , S connection and S total meet: 10% connection /(S total -S opening )

公开(公告)号：EP4328073A3

公开(公告)日：2024-05-01

申请号：EP23214639.9

申请日：2020-10-29

Applicant: BYD Company Limited

Inventor： SUN, Huajun ,  LU, Zhipei ,  PENG, Qingbo ,  WAN, Long ,  ZHU, Yan

IPC: H01M50/112 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6557 ,  H01M50/10 ,  H01M50/204 ,  H01M50/207 ,  H01M50/209 ,  H01M50/211 ,  H01M50/224 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291 ,  H01M50/358 ,  H01M50/367 ,  B60L50/64

CPC classification number: Y02E60/10 ,  Y02T10/70 ,  B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M50/10 ,  H01M50/204 ,  H01M50/211 ,  H01M50/224 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291 ,  H01M50/358 ,  H01M10/6557 ,  H01M50/207 ,  H01M50/209 ,  H01M50/367

Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a housing, at least one structural beam located in the housing, and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body including a top plate and a bottom plate arranged opposite to each other in a first direction. The at least one structural beam is located between the top plate and the bottom plate, the at least one structural beam is connected to the top plate and the bottom plate, the at least one structural beam divides the interior of the housing into multiple accommodating cavities, and at least one electrode core string is provided in at least one accommodating cavity. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series. The multiple electrode core assemblies are encapsulated in an encapsulation film. A length direction of the electrode core string extends in the second direction.

公开(公告)号：EP4328071A3

公开(公告)日：2024-05-01

申请号：EP23214636.5

申请日：2020-10-29

Applicant: BYD Company Limited

Inventor： SUN, Huajun ,  LU, Zhipei ,  PENG, Qingbo ,  WAN, Long ,  ZHU, Yan

IPC: H01M50/112 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6557 ,  H01M50/10 ,  H01M50/204 ,  H01M50/207 ,  H01M50/209 ,  H01M50/211 ,  H01M50/224 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291 ,  H01M50/358 ,  H01M50/367 ,  B60L50/64

CPC classification number: Y02E60/10 ,  Y02T10/70 ,  B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M50/10 ,  H01M50/204 ,  H01M50/211 ,  H01M50/224 ,  H01M50/242 ,  H01M50/249 ,  H01M50/291 ,  H01M50/358 ,  H01M10/6557 ,  H01M50/207 ,  H01M50/209 ,  H01M50/367

Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a housing, at least one structural beam located in the housing, and multiple electrode core strings electrically connected to one another located in the housing. The housing includes a housing body including a top plate and a bottom plate arranged opposite to each other in a first direction. The at least one structural beam is located between the top plate and the bottom plate, the at least one structural beam is connected to the top plate and the bottom plate, the at least one structural beam divides the interior of the housing into multiple accommodating cavities, and at least one electrode core string is provided in at least one accommodating cavity. A mounting portion is provided on the housing, and the mounting portion is configured to be connected and fixed to an external load. The electrode core string includes multiple electrode core assemblies sequentially disposed in a second direction and connected in series. The multiple electrode core assemblies are encapsulated in an encapsulation film. A length direction of the electrode core string extends in the second direction.

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.