公开(公告)号：WO2008144994A1

公开(公告)日：2008-12-04

申请号：PCT/CN2007/071348

申请日：2007-12-27

Applicant: BYD COMPANY LIMITED ,  WANG, Chuanfu ,  SHEN, Xi ,  ZHU, Jianhua ,  ZHENG, Weixin

Inventor： WANG, Chuanfu ,  SHEN, Xi ,  ZHU, Jianhua ,  ZHENG, Weixin

IPC: H01M2/26

CPC classification number: H01M2/206 ,  H01M2/021 ,  H01M2/0212 ,  H01M2/0237 ,  H01M2/06 ,  H01M2/08 ,  Y10T29/49108 ,  Y10T29/4911

Abstract: The present invention discloses a battery pack, which comprises a plurality of unit cells (1) each of which has two electrode terminals (2 and 3), and which are connected in series or in parallel by connecting an electrode terminal (2 or 3) of a unit cell (1) to an electrode terminal (3 or 2) of an adjacent unit cell (1), characterized in that, the electrode terminals (2 and 3) each is formed in a sheet shape, and the connection between the electrode terminals (2 and 3) is the binding of two sheets. According to the present invention, the battery pack has a low internal resistance, light weight, and reliable connection.

Abstract translation: 本发明公开了一种电池组，其包括多个单元电池（1），每个单元电池具有两个电极端子（2和3），并且通过连接电极端子（2或3）串联或并联连接， 的单电池（1）连接到相邻单电池（1）的电极端子（3或2），其特征在于，所述电极端子（2和3）各自形成为片状，并且所述电极端子 电极端子（2和3）是两片的结合。 根据本发明，电池组的内阻低，重量轻，连接可靠。

公开(公告)号：WO2008124989A1

公开(公告)日：2008-10-23

申请号：PCT/CN2007/071337

申请日：2007-12-26

Applicant: BYD COMPANY LIMITED ,  ZHENG, Weixin ,  ZHU, Jianhua ,  SHEN, Xi

Inventor： ZHENG, Weixin ,  ZHU, Jianhua ,  SHEN, Xi

IPC: H01M2/12 ,  H01M10/52 ,  F16K17/02 ,  F16K17/164

CPC classification number: H01M2/1229 ,  F16K17/02 ,  H01M10/0525 ,  Y10T137/7837

Abstract: A safety valve for battery has a valve body (1) and a valve core (2). The valve body (1) is fixed on a cover plate (4) of a battery and covers a discharging hole (9) in the cover plate (4) of the battery. The valve body (1) is formed with an exhaust opening (3) which is communicated with an internal space of the valve body (1). The valve core (2) is elastically held between a top cover (11) of the valve body (1) and the cover plate (4) of the battery. A plurality of columns (6) are arranged at intervals along a circumference of a gap between a side wall of the valve core (2) and an inner wall of the valve body (1). A cavity defined by every two adjacent columns (6), the side wall of the valve core (2) and the inner wall of the valve body (1) forms as a side exhaust slot (7) which is communicated with the exhaust opening (3) in the valve body (1).

Abstract translation: 电池用安全阀具有阀体（1）和阀芯（2）。 阀体（1）固定在电池的盖板（4）上并且覆盖电池的盖板（4）中的排出孔（9）。 阀体（1）形成有与阀体（1）的内部空间连通的排气口（3）。 阀芯（2）弹性地保持在阀体（1）的顶盖（11）和电池的盖板（4）之间。 多个柱（6）沿着阀芯（2）的侧壁和阀体（1）的内壁之间的间隙的圆周间隔设置。 由两个相邻的柱（6），阀芯（2）的侧壁和阀体（1）的内壁限定的空腔形成为与排气口（7）连通的侧排气狭槽（7） 3）在阀体（1）中。

公开(公告)号：WO2017088719A1

公开(公告)日：2017-06-01

申请号：PCT/CN2016/106662

申请日：2016-11-21

Applicant: BYD COMPANY LIMITED

Inventor： LIU, Desheng ,  PENG, Qingbo ,  ZHENG, Weixin ,  ZHU, Jianhua ,  ZHU, Yan

IPC: H01M10/613

CPC classification number: H01M10/613 ,  B60L11/1874 ,  B60L11/1879 ,  B60L2240/549 ,  H01M2/1077 ,  H01M10/625 ,  H01M10/6552 ,  H01M10/6554 ,  H01M10/6556 ,  H01M10/6567 ,  H01M2220/20

Abstract: A power battery pack and an electrical vehicle including the same are provided. The power battery pack includes: a tray; a plurality of battery modules disposed in the tray, and including a first battery module disposed on the tray and a second battery module stacked on the first battery module; a second module cooling plate disposed outside of the second battery module, and including a first bottom plate and a first side plate; and a first side heat-conducting plate disposed at an outer side of the first side plate and heat-conductively connected therewith, wherein both the first bottom plate and the first side plate have a heat pipe disposed therein respectively, the heat pipes of the first bottom plate and the first side plate are in communication with each other; and the first side heat-conducting plate has a heat pipe disposed therein and heat-conductively connected to the tray.

Abstract translation: 提供了一种动力电池组以及包括该动力电池组的电动车辆。 动力电池组包括：托盘; 多个电池模块，设置在所述托盘中，并且包括设置在所述托盘上的第一电池模块和层叠在所述第一电池模块上的第二电池模块; 第二模块冷却板，所述第二模块冷却板设置在所述第二电池模块的外部并且包括第一底板和第一侧板; 以及一第一侧导热板，设置于该第一侧板的外侧且与该第一侧板导热连接，其中该第一底板及该第一侧板分别具有一热管，该第一热管的第一热管 底板和第一侧板相互连通; 并且第一侧导热板具有布置在其中并且导热地连接到托盘的热管。

公开(公告)号：WO2016101872A1

公开(公告)日：2016-06-30

申请号：PCT/CN2015/098291

申请日：2015-12-22

Applicant: BYD COMPANY LIMITED

Inventor： ZHENG, Weixin ,  ZHU, Jianhua ,  SHEN, Xi ,  JIANG, Luxia ,  LU, Zhipei ,  ZHU, Yan

IPC: H01M10/6568 ,  B23K13/01

CPC classification number: H01M10/6568 ,  H01M10/6556

Abstract: A battery cooling plate assembly includes: a lower cooling plate, an upper cooling plate, having a passage molding portion, and a coolant passage defined between the lower cooling plate and the passage molding portion of the upper cooling plate; wherein the passage molding portion of the upper cooling plate has an edge connected with the lower cooling plate via electromagnetic pulse welding. The coolant passage may be formed at the same time by electromagnetic pulse welding, which may cancel the step of stamping, thus may decrease manufacturing cost of the battery cooling plate assembly.

Abstract translation: 电池冷却板组件包括：下冷却板，上冷却板，具有通道模制部分，以及限定在下冷却板和上冷却板的通道模制部分之间的冷却剂通道; 其特征在于，所述上部冷却板的通路成型部具有通过电磁脉冲焊接与所述下部冷却板连接的边缘。 可以通过电磁脉冲焊接同时形成冷却剂通道，这可以消除冲压步骤，从而可能降低电池冷却板组件的制造成本。

公开(公告)号：WO2010124562A1

公开(公告)日：2010-11-04

申请号：PCT/CN2010/071862

申请日：2010-04-18

Applicant: BYD COMPANY LIMITED ,  ZHENG, Weixin

Inventor： ZHENG, Weixin

IPC: H01M2/00

CPC classification number: H01M2/024 ,  H01M2/1077 ,  H01M2/206 ,  H01M2/266 ,  H01M10/0413

Abstract: A single cell (1) comprises a shell, a cover board (2) and an electric core (5). The cover board (2) is connected with the shell in a sealed manner. The electric core (5) is accommodated in the shell, at least two electrode terminals having the same polarity penetrate through the cover board (2) respectively. A power battery pack comprises a plurality of single cells as described above. The single cell and battery pack have improved rate discharging characteristics, especially welding problems may be solved and the manufacturing process may be simplified.

Abstract translation: 单电池（1）包括外壳，盖板（2）和电芯（5）。 盖板（2）以密封的方式与壳体连接。 电芯（5）容纳在壳体中，具有相同极性的至少两个电极端子分别穿过盖板（2）。 动力电池组包括如上所述的多个单电池。 单电池和电池组具有改善的放电特性，特别是可以解决焊接问题，并且可以简化制造工艺。

公开(公告)号：WO2010124556A1

公开(公告)日：2010-11-04

申请号：PCT/CN2010/071731

申请日：2010-04-13

Applicant: BYD COMPANY LIMITED ,  ZHENG, Weixin

Inventor： ZHENG, Weixin

IPC: H01M2/26 ,  H01M10/04

CPC classification number: H01M2/202 ,  H01M2/0212 ,  H01M2/0469 ,  H01M2/0473 ,  H01M2/06 ,  H01M2/30

Abstract: A single cell and a power battery pack comprising the same are provided. The single cell comprises: a shell; a cover board (4) sealing an open end of the shell; an electrode core (1) accommodated inside the shell; an electrode terminal (2) penetrating through the cover board (4) with a first end portion (21) connected with the electrode core (1) inside the shell, a second end portion (23) outside the shell and a middle portion (22) connected between the first end portion (21) and the second end portion (23) penetrating through the cover board (4) in an insulating manner. The first end portion (21) and the second end portion (23) may be formed by a plurality of flexible conductive members (231,211) connected together.

Abstract translation: 提供了单电池和包含该电池的动力电池组。 单细胞包括：壳; 盖板（4），密封壳体的开口端; 容纳在壳体内的电极芯（1） 穿过所述盖板（4）的电极端子（2）具有与所述壳体内部的所述电极芯（1）连接的第一端部（21），所述壳体外部的第二端部（23）和中间部分（22） ）连接在所述第一端部（21）和所述第二端部（23）之间，以绝缘方式穿过所述盖板（4）。 第一端部（21）和第二端部（23）可以由连接在一起的多个柔性导电部件（231,211）形成。

公开(公告)号：WO2009082955A1

公开(公告)日：2009-07-09

申请号：PCT/CN2008/073682

申请日：2008-12-24

Applicant: BYD COMPANY LIMITED ,  JIANG, Luxia ,  ZHENG, Weixin ,  ZHU, Jianhua

Inventor： JIANG, Luxia ,  ZHENG, Weixin ,  ZHU, Jianhua

IPC: H01M10/50 ,  H01M2/22

CPC classification number: H01M2/348 ,  H01M2/043 ,  H01M2/046 ,  H01M2/0473 ,  H01M2/06 ,  H01M2/08 ,  H01M2/206 ,  H01M2/22 ,  H01M2/305 ,  H01M6/5038 ,  H01M10/0422 ,  H01M10/0431 ,  H01M10/0525 ,  H01M10/0587 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6553 ,  Y02E60/12 ,  Y02E60/122 ,  Y02T10/7011

Abstract: A battery system comprising a battery pack, in the battery pack there are a plurality of cells, which are electrically connected by physical contact (1200) between electrical terminals of adjacent cells (300). A resistive heater (1205) is attached to at least some of the electrical terminals in the battery pack to thereby warm the cells to a more optimum operating temperature in response to a sensed temperature.

Abstract translation: 一种电池系统，包括电池组，在电池组中有多个电池，它们通过相邻电池（300）的电气端子之间的物理接触（1200）电连接。 电阻加热器（1205）附接到电池组中的至少一些电端子，从而响应于感测到的温度将电池温暖到更佳的工作温度。

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：EP4228052A1

公开(公告)日：2023-08-16

申请号：EP21908440.7

申请日：2021-05-08

Applicant: BYD Company Limited

Inventor： LU, Peng ,  PENG, Qingbo ,  ZHENG, Weixin

IPC: H01M10/42 ,  H01M10/48 ,  G01M3/16

Abstract: A battery pack, a method for controlling a battery pack, and a vehicle. The battery pack includes a control module (101), a battery core (102), a liquid leakage detection module (103), and a pre-charge switch module (104). The liquid leakage detection module (103) is connected with the control module (101), and the liquid leakage detection module (103) is configured to send a liquid leakage signal to the control module (101) when detecting that liquid leakage occurs in the battery core (102). The control module (101) is configured to prohibit sending a pre-charge on signal to the pre-charge switch module (104) upon receiving the liquid leakage signal while receiving a start signal for starting the battery core (102). The pre-charge switch module (104) is configured to prohibit connection of the pre-charge voltage end and the power output end when not receiving the pre-charge on signal, to prohibit the battery core (102) from outputting a pre-charge voltage through the power output end.

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.