-
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
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.
-
22.
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:EP4395007A1
公开(公告)日:2024-07-03
申请号:EP22900022.9
申请日:2022-09-08
Applicant: BYD Company Limited
Inventor: WANG, Xiao , YOU, Yueqiu , SHU, Yuanmao , ZHENG, Weixin , LU, Zhipei
IPC: H01M10/615 , H01M50/244 , H01M50/249
CPC classification number: Y02E60/10 , H01M50/204 , H01M50/249 , H01M10/6571 , H01M50/244 , H01M10/6554 , H01M10/625 , H01M10/615
Abstract: A battery pack and an electric vehicle are provided. The battery pack includes a tray and a heating component. The heating component is arranged within the tray, and the heating component includes multiple heating sections. In the heating component of the battery pack, heating powers of the multiple heating sections are different, and the multiple heating sections are respectively configured to heat multiple regions within the tray to balance an ambient temperature within the tray.
-
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:EP4331896A1
公开(公告)日:2024-03-06
申请号:EP22874360.5
申请日:2022-07-06
Applicant: BYD Company Limited
Inventor: ZHANG, Ke , E, Congji , GUO, Zizhu , PAN, Yi , LU, Zhipei
Abstract: A battery pack and a vehicle are provided. The battery pack is configured to provide electric energy required by the vehicle under different operating conditions. The battery pack includes a task manager, a first battery unit and a second battery unit. The first battery unit and the second battery unit respectively respond to a different operating state of a load and provide the electric energy required under the control of the task manager.
-
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:EP4254603A1
公开(公告)日:2023-10-04
申请号:EP21916988.5
申请日:2021-05-13
Applicant: BYD Company Limited
Inventor: FENG, Jiamao , LU, Zhipei , XU, Huabing , LI, Huabiao
IPC: H01M10/613 , H01M10/617 , H01M10/625 , H01M10/6554 , H01M10/6556 , H01M10/6568
Abstract: The present invention relates to a battery pack and a vehicle. The battery pack includes a liquid cooling plate (1), and a battery stack (3) including at least one battery module (31). The liquid cooling plate (1) includes a liquid cooling plate body (11), a liquid inlet (12) and a liquid outlet (13). The liquid cooling plate body (11) is internally provided with a liquid cooling circuit, which includes a peripheral liquid inflow channel (111), an effluent liquid collecting channel (112), and an intermediate channel (113) communicating between the peripheral liquid inflow channel (111) and the effluent liquid collecting channel (112). The liquid inlet (12) is connected onto the liquid cooling plate body (11) and communicates with the peripheral liquid inflow channel (111). The liquid outlet (13) is connected onto the liquid cooling plate body (11) and communicates with the effluent liquid collecting channel (112). At a low temperature, the battery pack of the present invention matches the heating requirements of different areas, and gives more heat to the peripheral area of the battery pack, to control the temperature difference in the battery pack.
-
公开(公告)号:EP4223574A1
公开(公告)日:2023-08-09
申请号:EP21908443.1
申请日:2021-05-12
Applicant: BYD Company Limited
Inventor: WAN, Long , LU, Zhipei , PENG, Qingbo , WU, Lei
IPC: B60L3/00 , B60L50/64 , H01M50/249 , H01M50/244 , H01M10/48
Abstract: A battery pack protection system (100) and a vehicle are provided. The battery pack protection system includes a battery pack (1) and a protective plate (2). The battery pack (1) includes a tray (11). The tray (11) includes a frame (13) and a bottom plate (12). Battery modules are arranged on the bottom plate (12). The protective plate (2) is arranged parallel to the bottom plate (12), and the protective plate (2) is close to a side of the bottom plate (12). At least one sensor (3) is arranged on the protective plate (2). The protective plate (2) is detachably connected to the frame (13).
-
30.
公开(公告)号:EP4068496A1
公开(公告)日:2022-10-05
申请号:EP20907650.4
申请日:2020-10-23
Applicant: BYD Company Limited
Inventor: LU, Peng , LU, Zhipei , WANG, Xinyue , DENG, Dongjun , ZHU, Yan
IPC: H01M50/572
Abstract: A cover plate assembly, a battery, a battery module, a power battery pack, and an electric vehicle are disclosed. The cover plate assembly includes a cover plate body (1), a first electrode terminal (2), a second electrode terminal, and a resistive coating (3). The second electrode terminal is insulatively connected with the cover plate body (1). The first electrode terminal (2) is electrically connected with the cover plate body (1) by the resistive coating (3). The resistive coating (3) includes a weak portion (331). When a current flowing through the resistive coating (3) is greater than a predetermined threshold, the weak portion (331) is melted to disconnect the cover plate body (1) from the first electrode terminal (2).
-
-
-
-
-
-
-
-
-