公开(公告)号：EP4329067A2

公开(公告)日：2024-02-28

申请号：EP23220826.4

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, and a height H; 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 4≤L/H≤21 and 23≤L/D≤208.

公开(公告)号：EP4329058A2

公开(公告)日：2024-02-28

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: H01M50/103

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 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：EP3783688A1

公开(公告)日：2021-02-24

申请号：EP19909473.1

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: 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, the cell has a first dimension, and the first dimension is a maximum spacing between two imaginary parallel planes sandwiching the cell; and at least one of the cells 600 mm≤first dimension≤2500 mm the at least one cell includes 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 support member is connected to the supporting region to support the cell.

公开(公告)号：EP4372901A3

公开(公告)日：2024-08-21

申请号：EP24167376.3

申请日：2019-06-25

Applicant: BYD Company Limited

Inventor： HE, Kefeng ,  JIANG, Wenfeng ,  WANG, Xinyue ,  ZHANG, Hui ,  ZHU, Yan

IPC: H01M50/211 ,  H01M50/547 ,  H01M50/548 ,  H01M50/55 ,  H01M10/04 ,  H01M10/052 ,  H01M10/0585 ,  H01M10/42 ,  H01M50/249 ,  H01M50/471 ,  H01M50/51 ,  H01M50/533 ,  H01M50/593

CPC classification number: H01M10/4235 ,  H01M50/211 ,  H01M50/249 ,  H01M50/471 ,  H01M50/51 ,  H01M50/533 ,  H01M50/593 ,  H01M2220/2020130101 ,  H01M10/0413 ,  H01M10/0585 ,  H01M10/052 ,  H01M50/547 ,  H01M50/548 ,  H01M50/55 ,  Y02E60/10

Abstract: A battery module, a power battery pack and a vehicle are provided. The battery module comprises n cells. At least two surfaces of the cell are respectively provided with a first positive terminal and a first negative terminal, and a second positive terminal and a second negative terminal. The n cells are arranged side by side in series. The cell (100) has a length L, a width H and a thickness T, where L meets 600 mm

公开(公告)号：EP4372901A2

公开(公告)日：2024-05-22

申请号：EP24167376.3

申请日：2019-06-25

Applicant: BYD Company Limited

Inventor： HE, Kefeng ,  JIANG, Wenfeng ,  WANG, Xinyue ,  ZHANG, Hui ,  ZHU, Yan

IPC: H01M50/593

CPC classification number: H01M10/4235 ,  H01M50/211 ,  H01M50/249 ,  H01M50/471 ,  H01M50/51 ,  H01M50/533 ,  H01M50/593 ,  H01M2220/2020130101 ,  H01M10/0413 ,  H01M10/0585 ,  H01M10/052 ,  H01M50/547 ,  H01M50/548 ,  H01M50/55 ,  Y02E60/10

Abstract: A battery module, a power battery pack and a vehicle are provided. The battery module comprises n cells. At least two surfaces of the cell are respectively provided with a first positive terminal and a first negative terminal, and a second positive terminal and a second negative terminal. The n cells are arranged side by side in series. The cell (100) has a length L, a width H and a thickness T, where L meets 600 mm

公开(公告)号：EP4369497A2

公开(公告)日：2024-05-15

申请号：EP24167375.5

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: 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; anda plurality of cells, provided in the housing, each cell comprises a cell body having a length L, a width H, a thickness D and a volume V, and the thickness D of the cell body and the volume V of the cell body satisfy D/V= 0.0000065 mm-2-0.00002 mm-2; wherein 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 600-2500 mm.

公开(公告)号：EP4369494A2

公开(公告)日：2024-05-15

申请号：EP24167371.4

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, wherein the length L of the cell body is 400-1500 mm; and wherein the surface area S of the cell body (110) and the volume V of the cell body (110) satisfy: S/V= 0.1 mm-1-0.35 mm-1, and the length L of the cell body (110) and the surface area S of the cell body (110) satisfy: L/S= 0.002 mm-1-0.005 mm-1.

公开(公告)号：EP4345932A1

公开(公告)日：2024-04-03

申请号：EP22852334.6

申请日：2022-08-05

Applicant: BYD Company Limited

Inventor： YUAN, Xiaotao ,  XU, Zhan ,  CHEN, Peixing ,  WU, Xuanwei ,  HE, Kefeng

IPC: H01M4/13 ,  H01M4/139 ,  H01M10/0525

Abstract: An electrode, a preparation method for an electrode, and a battery are provided. The electrode includes n electrode plate layers sequentially stacked. The electrode plate layer close to a membrane side of the battery is the 1 st layer, and the electrode plate layer close to a current collector side is the n th layer. N is a natural number greater than or equal to 2. An electrode material of the electrode plate layer at the 1 st layer includes first particles, and an electrode material of the electrode plate layer at each layer from the 2 nd layer to the n th layer includes at least the first particles and second particles. An average particle size of the first particles is greater than an average particle size of the second particles. Porosity of the electrode plate layers gradually increases layer by layer in a direction from the n th layer to the 1 st layer.

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：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.