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：EP3905377A1

公开(公告)日：2021-11-03

申请号：EP19904418.1

申请日：2019-07-25

Applicant: BYD Company Limited

Inventor： REN, Zhenghua ,  LU, Zhipei ,  GUO, Kun ,  PENG, Qingbo ,  ZHU, Yan

IPC: H01M2/12 ,  H01M2/10

Abstract: The present invention relates to a power battery pack (400) and a vehicle. The power battery pack (400) includes a battery tray (100) and several battery cells (200) disposed on the battery tray (100). Each of the battery cells (200) has a cell anti-explosion valve (201). The battery tray (100) includes a tray body. At least a part of the tray body is formed therein with an air passage. The tray body is provided with several inlet vents (31) and at least one exhaust vent. At least part of the inlet vents (31) and the cell anti-explosion valves (201) are disposed opposite to each other and correspond one-to-one to each other.

公开(公告)号：EP4535530A1

公开(公告)日：2025-04-09

申请号：EP23815130.2

申请日：2023-05-29

Applicant: BYD Company Limited

Inventor： WAN, Long ,  LU, Zhipei ,  PENG, Qingbo ,  ZHU, Yan ,  TAN, Zhijia

IPC: H01M50/231 ,  H01M50/224 ,  H01M50/233 ,  H01M50/242 ,  H01M50/249

Abstract: A battery protective bottom plate, a battery pack composite protective structure and a vehicle. The battery protective bottom plate comprises an upper fiber reinforced resin layer, a metal plate and a lower fiber reinforced resin layer, wherein the metal plate is located between the upper fiber reinforced resin layer and the lower fiber reinforced resin layer, and the following condition is satisfied: (I) 1 ≤ ρ 2 ∗ d 1 + d 2 + d 3 / d 2 ρ 2 + ρ 1 ∗ d 1 + ρ 3 ∗ d 3 / d 1 + d 3 ∗ σ 1 ∗ d 1 + σ 3 ∗ d 3 / d 1 + d 3 σ 2 ≤ 2 .

公开(公告)号：EP4517934A1

公开(公告)日：2025-03-05

申请号：EP23795558.8

申请日：2023-04-27

Applicant: BYD Company Limited

Inventor： ZHANG, Ke ,  GUO, Zizhu ,  PAN, Yi ,  ZHU, Yan ,  SUN, Huajun

IPC: H01M10/615 ,  H01M10/625 ,  H01M10/637 ,  B60L58/27

Abstract: The present disclosure provides a heating system for a power battery, and an electric vehicle. The power battery comprises a first cell group and a second cell group connected in series. The heating system comprises an inverter, an AC motor, a first controller, and a plurality of connection lines. The midpoints of three bridge arms of the inverter are connected to the head ends of three-phase coils of the AC motor in a one-to-one correspondence. The tail ends of the AC motor are connected together to form a neutral point. First ends of the connection lines are connected to the neutral point of the AC motor. Second ends of the connection lines are connected to a connection point between the first cell group and the second cell group. The first controller is configured to input a drive signal to the inverter. The first cell group, the second cell group, the inverter, the AC motor, and the connection lines form an AC self-heating loop.

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：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 .