公开(公告)号：EP4318781A2

公开(公告)日：2024-02-07

申请号：EP23214629.0

申请日：2020-10-29

Applicant: BYD Company Limited

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

IPC: H01M50/502

Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a sealed housing, and at least one housing structural beam 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 structural beam is located between the top plate and the bottom plate, the at least one structural beam divides the interior of the housing into multiple accommodating cavities, the at least one structural beam is connected to the top plate and the bottom plate, and at least one electrode core string is provided in at least one accommodating cavity An atmospheric pressure in the accommodating cavity is lower than an atmospheric pressure outside the housing. 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 electrode core assembly is encapsulated in an encapsulation film. A length direction of the electrode core string extends in the second direction

公开(公告)号：EP4142024A1

公开(公告)日：2023-03-01

申请号：EP20932601.6

申请日：2020-10-29

Applicant: BYD Company Limited

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

IPC: H01M50/10 ,  H01M50/105

Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a sealed housing, and at least one housing structural beam 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 structural beam is located between the top plate and the bottom plate, the at least one structural beam divides the interior of the housing into multiple accommodating cavities, the at least one structural beam is connected to the top plate and the bottom plate, and at least one electrode core string is provided in at least one accommodating cavity. An atmospheric pressure in the accommodating cavity is lower than an atmospheric pressure outside the housing. 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 electrode core assembly is encapsulated in an encapsulation film. A length direction of the electrode core string extends in the second direction.

公开(公告)号：EP4138184A1

公开(公告)日：2023-02-22

申请号：EP21808137.0

申请日：2021-04-20

Applicant: BYD Company Limited

Inventor： HU, Shichao ,  ZHU, Yan ,  GAO, Xin

IPC: H01M50/172 ,  H01M50/20

Abstract: The present disclosure provides a battery core assembly (10), a battery (100), a battery pack (200), and a vehicle (300). The battery core assembly (10) includes an encapsulation film (11) and an electrode core assembly (12). The electrode core assembly is arranged in an accommodating cavity (110) defined by the encapsulation film, and the electrode core assembly (12) includes at least one electrode core (121). The electrode core assembly is provided with two electrode lead-out members (122) of opposite polarities for current output. An intermediate ring (13) is further arranged in the accommodating cavity (110) at a side of the electrode core assembly (12) provided with the electrode lead-out member, and provided with an electrode lead-out hole (131) for leading the electrode lead-out member out. Moreover, the present disclosure further provides a battery (100), a battery pack (200), and a vehicle (300) based on the battery core assembly provided in the present disclosure.

公开(公告)号：EP4138179A1

公开(公告)日：2023-02-22

申请号：EP20931797.3

申请日：2020-11-11

Applicant: BYD Company Limited

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

IPC: H01M50/10

Abstract: The present disclosure provides a battery pack housing, a battery pack, and an electric vehicle. The battery pack housing includes a housing body and at least one structural beam inside the housing body, and the at least one structural beam divides the internal space of the housing body into a number of accommodation cavities. The housing body includes a top plate and a bottom plate arranged opposite to each other in a first direction, where the first direction is a height direction of the battery pack housing, the structural beam locates between the top plate and the bottom plate, and the at least one structural beam is attached to the top plate and the bottom plate. The battery pack housing is arranged with a mounting portion for a fixed connection with an external load. The battery pack housing disclosed in the present disclosure has relatively high strength and stiffness as well as high space utilization.

公开(公告)号：EP4117080A1

公开(公告)日：2023-01-11

申请号：EP21764980.5

申请日：2021-01-28

Applicant: BYD Company Limited

Inventor： WANG, Yi ,  PENG, Qingbo ,  CHEN, Danfeng ,  TAO, Naishu ,  ZHU, Yan

IPC: H01M10/42 ,  H01M50/20 ,  B60L53/53

Abstract: A battery pack (100) and a vehicle including the battery pack (100) are provided. The battery pack (100) includes a housing, a battery core group (20), and a distribution box (30) detachably mounted on the housing. The housing is provided with a receiving space (101). Both the battery core group (20) and the distribution box (30) are received in the receiving space (101). The battery core group (20) is electrically connected to the distribution box (30). The housing includes a bottom plate (11) and an access cover (12). The bottom plate (11) is provided with an access port (110). The access port (110) communicates with the receiving space (101). The distribution box (30) faces the access port (110). The access cover (12) is detachably mounted on the bottom plate (11) and covers the access port (110).

公开(公告)号：EP4087026A1

公开(公告)日：2022-11-09

申请号：EP21741117.2

申请日：2021-01-04

Applicant: BYD Company Limited

Inventor： HE, Long ,  SUN, Huajun ,  HU, Shichao ,  AO, Zhiyong ,  ZHU, Yan

IPC: H01M50/10 ,  H01M10/42

Abstract: A battery pack and an electric vehicle are provided. The battery pack (200) includes a battery sequence (201). The battery sequence (201) includes multiple cells (100). A thickness of each cell (100) extends along a first direction. The multiple cells (100) are arranged in sequence along the first direction to form the battery sequence (201). At least one of the cells (100) includes a metal shell (101) and an electrode core (102) packaged in the metal shell (101). An air pressure inside the metal shell (101) is lower than an air pressure outside the metal shell (101). A gap is provided between at least two adjacent cells (100). A ratio of the gap to the thickness of the cell (100) ranges from 0.001 to 0.15.

公开(公告)号：EP4087000A1

公开(公告)日：2022-11-09

申请号：EP21740642.0

申请日：2021-01-12

Applicant: BYD Company Limited

Inventor： SUN, Huajun ,  LU, Zhipei ,  ZHU, Yan ,  HU, Shichao

IPC: H01M10/0525 ,  H01M50/102 ,  H01M50/578 ,  H01M50/618 ,  H01M50/579

Abstract: A cell (100) is provided, which includes a metal housing (11) and multiple electrode core strings encapsulated in the metal housing (11). The multiple electrode core strings are arranged in a second direction and sequentially connected in series. Each of the electrode core strings includes an encapsulation film (13) and multiple electrode core assemblies (12) arranged in a first direction and sequentially connected in series. The electrode core assemblies (12) are encapsulated in the encapsulation film (13). An atmospheric pressure between the metal housing (11) and the encapsulation film (13) is lower than an atmospheric pressure outside the metal housing (11).

公开(公告)号：EP4053980A1

公开(公告)日：2022-09-07

申请号：EP20889809.8

申请日：2020-10-22

Applicant: BYD Company Limited

Inventor： HE, Long ,  SUN, Huajun ,  ZHU, Yan ,  TAN, Liangwen ,  WAN, Long

IPC: H01M50/209 ,  H01M10/613

Abstract: This application relates a battery pack and an electric vehicle. The battery pack includes a housing provided with a bottom surface and a top surface. A battery assembly is arranged in the housing. The battery assembly includes a structural reinforcing member and a cell sequence formed by connecting multiple cells. An outer surface of the cell includes a bottom surface, a top surface, first side surfaces, and two opposing second side surface. The bottom surface of the cell faces the bottom surface of the housing, and the top surface of the cell faces the top surface of the housing. The first side surface has a largest area. The multiple cells are arranged with second side surfaces thereof facing each other to form the cell sequence, and the structural reinforcing member is fixedly bonded with a first side surface of each cell in the cell sequence. The battery assembly abuts with the bottom surface of the housing to be supported in the housing.

公开(公告)号：EP3905368A1

公开(公告)日：2021-11-03

申请号：EP19902127.0

申请日：2019-07-24

Applicant: BYD Company Limited

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

IPC: H01M2/10

Abstract: Provided are a battery tray and a power battery pack. The battery tray includes a tray body. The tray body includes a base plate (10), a side beam (20), and several partition plates (30), the side beam (20) is disposed around the base plate (10) and defines, together with the base plate (10), an accommodating space for battery cells (200). The partition plates (30) are disposed on the base plate (10) and divide the base plate (10) into several regions for placing the battery cells (200). The partition plates (30) and the side beam (20) are each formed therein with an air passage and are in communication with each other. The partition plates (30) are provided with several inlet vents (31), and the side beam (20) is provided with at least one exhaust vent. The inlet vent (31) is configured to introduce a flame, smoke or gas discharged from the battery cell (200) into the air passage.

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.