公开(公告)号：EP4343942A2

公开(公告)日：2024-03-27

申请号：EP23220620.1

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: H01M50/249

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body, where an accommodating space is defined in the pack body, the pack body is provided therein with at least one widthwise cross beam or lengthwise cross beam, the widthwise cross beam extends along a width direction of the power battery pack, the lengthwise cross beam extends along a length direction of the power battery pack, and the accommodating space is divided into a plurality of accommodating chambers by the at least one widthwise cross beam or lengthwise cross beam; and a plurality of cells, disposed in the pack body and directly arranged in the accommodating chambers, where at least one cell is arranged in each accommodating chamber to form a cell array. The power battery pack according to the embodiments of this application has advantages of high space utilization, large energy density, long battery life, high reliability, low costs, high quality, and the like.

公开(公告)号：EP4060796A1

公开(公告)日：2022-09-21

申请号：EP20890281.7

申请日：2020-11-19

Applicant: BYD Company Limited

Inventor： ZHU, Jianhua ,  ZHU, Yan ,  WANG, Xinyue

IPC: H01M50/112 ,  H01M50/636

Abstract: A battery (100), including: a housing (1) and a number of accommodating cavities (11) provided in the housing (1). Two adjacent accommodating cavities (11) are separated by a partition plate (12). An electrode core assembly (2) is arranged in each of the accommodating cavities (11). A number of electrode core assemblies (2) are sequentially arranged along a first direction and connected in series. A spacer (Q1) is arranged between an end of the electrode core assembly (2) along the first direction and the partition plate (12).

公开(公告)号：EP3907776A1

公开(公告)日：2021-11-10

申请号：EP19909472.3

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 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6568 ,  B60L50/64

Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a housing; 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 cell comprises a cell body, and the length of the cell body is 400-2500 mm.

公开(公告)号：EP4525174A1

公开(公告)日：2025-03-19

申请号：EP23802992.0

申请日：2023-05-11

Applicant: BYD Company Limited

Inventor： YUAN, Wansong ,  WANG, Xinyue ,  CHEN, Chong ,  DUAN, Pingan ,  ZHANG, Da

IPC: H01M50/367 ,  H01M50/342

Abstract: A battery cell (1), a battery pack (2) and a vehicle (4). The battery cell (1) comprises: a housing (100), which is provided with an inner cavity (110), and a first side wall (120) and a second side wall (130), which are opposite each other, wherein an inner wall surface of the second side wall (130) is configured to have a recess (140), which is recessed in a direction facing away from the inner cavity (110), the recess (140) forms an air exhaust passage (150) in the inner cavity (110), and the second side wall (130) is provided with an explosion-proof hole (160), which corresponds to the air exhaust passage (150) in terms of position; a terminal (200), which is arranged on a side wall of the housing (100) other than the second side wall (130); an explosion-proof valve (300), which is mounted on the second side wall (130) and is used for covering the explosion-proof hole (160); and an electrode core (400), which is arranged inside the housing (100) and is spaced apart from the explosion-proof hole (160).

公开(公告)号：EP4525171A1

公开(公告)日：2025-03-19

申请号：EP23803011.8

申请日：2023-05-11

Applicant: BYD Company Limited

Inventor： WANG, Xinyue ,  CHEN, Chong ,  CHEN, Guangan ,  LIU, Xufeng ,  WANG, Cuicui

IPC: H01M50/342

Abstract: Provided is a vehicle (600), having a battery pack (500). The battery pack (500) comprises a battery (300) or a battery module (400). The battery module (400) comprises the battery (300). The battery (300) comprises an explosion-proof valve (200). The explosion-proof valve (200) comprises an explosion-proof valve body (100). The explosion-proof valve body (100) is provided with score grooves (11), and the score grooves (11) comprise two first score grooves (111), two second score grooves (112), and one third score groove (113). One end of each of the two first score grooves (111) and one end of each of the two second score grooves (112) are respectively connected to two ends of the third score groove (113). The other ends of the two first score grooves (111) extend in a direction away from each other, and the other ends of the second score grooves (112) extend in a direction away from each other. The explosion-proof valve body (100) comprises an opening area (10). In the depth direction of the score grooves, the outer edge of the orthographic projection of the opening area (10) is a predetermined opening boundary (131), and the area of the orthographic projection of the opening area (10) is (I), wherein S≥80 mm 2 , c≥4 mm, and α≥30°.

公开(公告)号：EP4369495A2

公开(公告)日：2024-05-15

申请号：EP24167373.0

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 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 and the width H satisfy: L/H=4-21; and wherein the surface area S of the cell body (110) and the energy E of the cell body (110) satisfy: S/E≤1000 mm2 Wh-1, and the volume V of the cell body (110) and the energy E of the cell body (110) satisfy: V/E≤2000 mm3·Wh-1.

公开(公告)号：EP4369493A2

公开(公告)日：2024-05-15

申请号：EP24167370.6

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: H01M50/249

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); 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%; and 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; wherein the housing defines a plurality of accommodating spaces, the plurality of accommodating spaces comprise at least one accommodating space along the first direction, and each accommodating space of 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 400-1500 mm.

公开(公告)号：EP4369492A2

公开(公告)日：2024-05-15

申请号：EP24167369.8

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 battery pack and an electric vehicle are provided. The battery pack includes a housing; and a plurality of cells, provided in the housing; 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 two cells along the first direction; and the cell comprises a cell body, and the length of the cell body is 400-1500 mm.

公开(公告)号：EP4343941A2

公开(公告)日：2024-03-27

申请号：EP23220492.5

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

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack includes: a pack body, where an accommodating space is defined in the pack body, the pack body is provided therein with at least one widthwise cross beam or lengthwise cross beam, the widthwise cross beam extends along a width direction of the power battery pack, the lengthwise cross beam extends along a length direction of the power battery pack, and the accommodating space is divided into a plurality of accommodating chambers by the at least one widthwise cross beam or lengthwise cross beam; and a plurality of cells, disposed in the pack body and directly arranged in the accommodating chambers, where at least one cell is arranged in each accommodating chamber to form a cell array. The power battery pack according to the embodiments of this application has advantages of high space utilization, large energy density, long battery life, high reliability, low costs, high quality, and the like.

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.