公开(公告)号：EP2225793A1

公开(公告)日：2010-09-08

申请号：EP08868949.2

申请日：2008-12-24

Applicant: BYD Company Limited

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

IPC: H01M10/50 ,  H01M2/22

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

公开(公告)号：EP2137777A1

公开(公告)日：2009-12-30

申请号：EP07846163.9

申请日：2007-12-26

Applicant: Byd Company Limited

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

IPC: H01M2/12 ,  H01M10/52 ,  F16K17/02 ,  F16K17/164

CPC classification number: H01M2/1229 ,  F16K17/02 ,  H01M10/0525 ,  Y10T137/7837

Abstract: A safety valve for battery has a valve body (1) and a valve core (2). The valve body (1) is fixed on a cover plate (4) of a battery and covers a discharging hole (9) in the cover plate (4) of the battery. The valve body (1) is formed with an exhaust opening (3) which is communicated with an internal space of the valve body (1). The valve core (2) is elastically held between a top cover (11) of the valve body (1) and the cover plate (4) of the battery. A plurality of columns (6) are arranged at intervals along a circumference of a gap between a side wall of the valve core (2) and an inner wall of the valve body (1). A cavity defined by every two adjacent columns (6), the side wall of the valve core (2) and the inner wall of the valve body (1) forms as a side exhaust slot (7) which is communicated with the exhaust opening (3) in the valve body (1).

公开(公告)号：EP4329056A3

公开(公告)日：2025-05-21

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: H01M50/209 ,  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 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：EP4395028A1

公开(公告)日：2024-07-03

申请号：EP22900331.4

申请日：2022-11-23

Applicant: BYD Company Limited

Inventor： SHU, Yuanmao ,  WU, Yanfeng ,  WANG, Xiao ,  ZHENG, Weixin ,  LU, Zhipei

IPC: H01M50/213 ,  H01M50/317 ,  H01M50/503 ,  H01M10/613 ,  H01M50/249 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/6556

CPC classification number: Y02E60/10 ,  H01M50/213 ,  H01M50/249 ,  H01M10/6554 ,  H01M10/625 ,  H01M50/503 ,  H01M10/613 ,  H01M50/317 ,  H01M10/6568 ,  H01M10/6556

Abstract: A battery housing, a battery pack, and a vehicle are provided. The battery housing includes: a tray, at least one module transverse beam, and a liquid cooling plate. A first channel is formed in the tray, and an explosion-proof valve in communication with the first channel is arranged on the tray. The module transverse beam is arranged in the tray. The module transverse beam includes an accommodating portion, at least a part of a bottom of the accommodating portion is depressed downward to form a groove that can accommodate gas, and an opening is arranged at at least one end that is of the groove and that is along a length direction of the module transverse beam. The liquid cooling plate is hermetically connected to an outside of a bottom of the module transverse beam, at least one connection channel is formed between the liquid cooling plate and the module transverse beam, and the opening is in communication with the first channel through the connection channel.

公开(公告)号：EP4369496A2

公开(公告)日：2024-05-15

申请号：EP24167374.8

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: H01M50/249

CPC classification number: B60K1/04 ,  B60K2001/043820130101 ,  H01M50/249 ,  H01M2220/2020130101 ,  H01M50/131 ,  H01M50/209 ,  H01M50/103 ,  H01M50/367 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6567 ,  H01M10/6568 ,  H01M10/6569 ,  H01M10/625 ,  H01M50/119 ,  Y02E60/10

Abstract: A cell for a battery pack, a battery pack and an electric vehicle are provided. The cell for a battery pack comprising: a cell body (110) having a length L, a width H, a thickness D, a surface area S and a volume V, the length L of the cell body being greater than the width H, and the width H of the cell body being greater than the thickness D, and satisfy: L/H=4−21,S/V=0.1mm−1−0.35mm−1,D/V=0.0000065mm−2−0.00002mm−2.

公开(公告)号：EP4369491A2

公开(公告)日：2024-05-15

申请号：EP24167368.0

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: H01M50/249

CPC classification number: B60K1/04 ,  B60K2001/043820130101 ,  H01M50/249 ,  H01M2220/2020130101 ,  H01M50/131 ,  H01M50/209 ,  H01M50/103 ,  H01M50/367 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6567 ,  H01M10/6568 ,  H01M10/6569 ,  H01M10/625 ,  H01M50/119 ,  Y02E60/10

Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a housing (200) comprising a vehicle tray (210) that is fitted and connected to a vehicle body; or a housing being formed on a vehicle body; and a plurality of cells, provided in the housing, wherein the sum V1 of the volumes of the plurality of cells and the volume V2 of the battery pack satisfy V1/V2≥55%. The battery pack has a first direction and a second direction perpendicular to each other. A length direction of the cell is arranged along the first direction of the battery pack, and the plurality of cells are arranged along the second direction of the battery pack. The housing accommodates only one cell along the first direction; and the cell comprises a cell body, and the length of the cell body is 400-2500 mm.

公开(公告)号：EP4350864A2

公开(公告)日：2024-04-10

申请号：EP24159357.3

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: H01M50/249

Abstract: The invention basically relates to a battery pack, comprising a cell array and a support member, wherein the cell array comprises a plurality of cells, at least one of the cells comprises a cell body and electrode terminals extending out of the cell body and configured to output a current inside the cell body, the at least one cell comprises a casing and a core located inside the casing, a supporting region is formed on the casing, and the cell is connected to the support member through the supporting region and is supported by the support member, the cell body being substantially a cuboid with a length L, 600 mm≤L≤2500 mm, a thickness D, a height H and a volume V; the length L of the cell body being greater than or equal to the height H of the cell body and the height H of the cell body being greater than or equal to the thickness D of the cell body, wherein the cell meets 0.0005mm-2≤L/V≤0.002mm-2 and 4≤L/H≤21 and 23≤L/D≤208.

公开(公告)号：EP4300658A1

公开(公告)日：2024-01-03

申请号：EP22831336.7

申请日：2022-04-12

Applicant: BYD Company Limited

Inventor： YOU, Yueqiu ,  WANG, Xiao ,  WU, Yanfeng ,  ZHENG, Weixin ,  LU, Zhipei

IPC: H01M10/613 ,  H01M10/615 ,  H01M10/617 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6567 ,  H01M10/658 ,  H01M10/653

Abstract: The present disclosure relates to a composite temperature control plate and a battery pack. The composite temperature control plate includes a temperature control layer and a protective layer. The temperature control layer is configured to lower or raise a temperature of the battery pack. The protective layer is laminated and fixed on the temperature control layer. The protective layer includes a heat insulating layer. The heat insulating layer is made of a heat insulating material. The protective layer includes a mounting portion extending at least to an periphery of the temperature control layer. The mounting portion is configured to connect with outside. The composite temperature control plate of the present disclosure includes the mounting portion extending at least to the periphery of the temperature control layer, and the mounting portion is used as a structure for connecting with outside, so that the problem of easy deformation at the joint is solved, thereby improving the connection reliability.

公开(公告)号：EP3907846A1

公开(公告)日：2021-11-10

申请号：EP19908498.9

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: H02J7/00

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack is fixed on the electric vehicle, and is configured to provide power for the electric vehicle. The power battery pack includes: a pack body; a plurality of cells, disposed in the pack body and disposed in the pack body; the cell having a length Lo, a width Ho, and a thickness Do, where at least one cell meets: L 0 >H 0 ≥D 0 , a length direction of the cell is arranged along a width direction of a vehicle body of the electric vehicle, and in the width direction of the electric vehicle, a sum of the length Lo of the cell and a size W of the vehicle body of the electric vehicle in the width direction meet: 46%≤L/W≤76%; or at least one cell meets: L 0 >H 0 ≥D 0 , a length direction of the cell is arranged along a length direction of a vehicle body of the electric vehicle, and in the length direction of the electric vehicle, the sum of the length Lo of the cell and a size X of the vehicle body of the electric vehicle in the length direction meet: 40%≤L/W≤76%.

公开(公告)号：EP3907778A1

公开(公告)日：2021-11-10

申请号：EP19909561.3

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

Abstract: A battery pack, a vehicle, and an energy storage device are provided. The battery pack includes a cell array and a support member, where the cell array includes a plurality of cells, each of the plurality of cells has a first size, and the first size is a maximum value of spacings between pairs of imaginary parallel planes that clamp the cell; at least one cell satisfies 600 mm≤first size≤2500 mm, and is supported by the support member; and a normal direction of two parallel planes corresponding to the first size is a direction Q, a battery placement area is defined in the battery pack, the cell array is located in the battery placement area, and each of the plurality of cells extends from one side of the battery placement area to another side of the battery placement area along the direction Q.