公开(公告)号：EP3907846A1

公开(公告)日：2021-11-10

申请号：EP19908498.9

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: H02J7/00

Abstract: Provided are a power battery pack and an electric vehicle. The power battery pack is fixed on the electric vehicle, and is configured to provide power for the electric vehicle. The power battery pack includes: a pack body; a plurality of cells, disposed in the pack body and disposed in the pack body; the cell having a length Lo, a width Ho, and a thickness Do, where at least one cell meets: L 0 >H 0 ≥D 0 , a length direction of the cell is arranged along a width direction of a vehicle body of the electric vehicle, and in the width direction of the electric vehicle, a sum of the length Lo of the cell and a size W of the vehicle body of the electric vehicle in the width direction meet: 46%≤L/W≤76%; or at least one cell meets: L 0 >H 0 ≥D 0 , a length direction of the cell is arranged along a length direction of a vehicle body of the electric vehicle, and in the length direction of the electric vehicle, the sum of the length Lo of the cell and a size X of the vehicle body of the electric vehicle in the length direction meet: 40%≤L/W≤76%.

公开(公告)号：EP3907778A1

公开(公告)日：2021-11-10

申请号：EP19909561.3

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

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, each of the plurality of cells has a first size, and the first size is a maximum value of spacings between pairs of imaginary parallel planes that clamp the cell; at least one cell satisfies 600 mm≤first size≤2500 mm, and is supported by the support member; and a normal direction of two parallel planes corresponding to the first size is a direction Q, a battery placement area is defined in the battery pack, the cell array is located in the battery placement area, and each of the plurality of cells extends from one side of the battery placement area to another side of the battery placement area along the direction Q.

公开(公告)号：EP3907777A1

公开(公告)日：2021-11-10

申请号：EP19909474.9

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: H01M2/10 ,  H01M10/613

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：EP3907774A1

公开(公告)日：2021-11-10

申请号：EP19908883.2

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 cell, a power battery pack, and an electric vehicle are provided. The cell includes a cell body, and the cell body has a length L, a width H and a thickness D. The length L of the cell body is greater than the width H, the width H of the cell body is greater than the thickness D, the length L of the cell body is greater than 600 mm, and the length L and the width H of the cell body satisfy L/H=4-21.

公开(公告)号：EP3782837A1

公开(公告)日：2021-02-24

申请号：EP19908886.5

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: B60K1/04 ,  H01M2/10

Abstract: A battery pack, a vehicle, and an energy storage device are provided. The battery pack includes: a battery pack housing and a plurality of rectangular cells, the battery pack housing having a first direction and a second direction perpendicular to the first direction; where the battery pack has a dimension greater than or equal to 600 mm along the first direction, and at least one rectangular cell accommodating unit is formed in the battery pack housing; the plurality of rectangular cells are arranged in the rectangular cell accommodating unit along the second direction; the rectangular cell extends along the first direction, and one rectangular cell is disposed in each rectangular cell accommodating unit along the first direction; the rectangular cell has a thickness of D, a length of L, and a height of H; the battery pack has a dimension greater than or equal to L along the first direction; and a length direction of at least one rectangular cell extends from one side of the rectangular cell accommodating unit to the other side of the rectangular cell accommodating unit along the first direction, and meets: L > H, L > D, 600 mm ≤ L ≤ 2500 mm, 23 ≤ L/D ≤ 208.

公开(公告)号：EP3467900A1

公开(公告)日：2019-04-10

申请号：EP17805610.7

申请日：2017-05-04

Applicant: BYD Company Limited

Inventor： TAN, Jing ,  ZHENG, Weixin ,  ZHU, Yan ,  SHEN, Xi

IPC: H01M2/10 ,  H01M2/02

Abstract: This application provides a battery packaging material and a method for preparing same, a battery pack sealing cover, a battery pack body, a power battery and an electric vehicle. The battery packaging material includes a fiber layer, where the fiber layer contains a mesh structure, and holes of the mesh structure are filled with a bonding agent.

公开(公告)号：EP2223367A1

公开(公告)日：2010-09-01

申请号：EP08864365.5

申请日：2008-12-24

Applicant: BYD Company Limited

Inventor： ZHENG, Weixin ,  ZHU, Jianhua ,  SHEN, Xi ,  HU, Hao ,  LAI, Qing ,  JI, Yingliang ,  PAN, Liying ,  HE, Yuanyuan

IPC: H01M2/20

CPC classification number: H01M2/206 ,  B23K35/00 ,  H01M2/1241 ,  H01M2/305 ,  H01M2/34 ,  H01M2/347 ,  H01M2/348 ,  H01M6/42 ,  H01M10/0481 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/425 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6566 ,  H01M2200/10 ,  H01M2200/101 ,  H01M2200/103 ,  H01M2200/20 ,  Y02E60/122

Abstract: A battery system for storing electrical power and supplying electrical power to a vehicle is provided. The system includes multiple battery packs, and each battery pack includes a plurality of cells (300a, 300b). The cells (300a, 300b) in each battery pack are electrically connected with one another and the multiple battery packs are also electrically connected with one another to combine the total energy output of the cells (300a, 300b) of the system. The electrical connections between at least some of the cells (300a, 300b) include a severable feature(800a, 800b), whereby the electrical connection is severed locally at the severable feature(800a, 800b) in response to an impact force that is in excess of a predetermined magnitude and/or an overcurrent/overtemperature condition.

公开(公告)号：EP2210311A1

公开(公告)日：2010-07-28

申请号：EP08863738.4

申请日：2008-12-24

Applicant: Byd Company Limited

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

IPC: H01M10/50 ,  H01M2/02

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: An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length Lcore and a width Wcore and each connector has a width Wconnector. The length of the coiled core Lcore, width of the coiled core Wcore, and width of each connector Wconnector have the relationship 0core-Wconnector)/Lcore

公开(公告)号：EP2210297A1

公开(公告)日：2010-07-28

申请号：EP08867970.9

申请日：2008-12-24

Applicant: BYD Company Limited

Inventor： JIANG, Wenfeng ,  LI, Chengliang ,  ZHENG, Weixin ,  ZHOU, Hao ,  ZHU, Jianhua ,  WU, Guanglin ,  SHEN, Xi

IPC: H01M2/20 ,  H01M10/40

CPC classification number: H01M2/206 ,  B23K35/00 ,  H01M2/1241 ,  H01M2/305 ,  H01M2/34 ,  H01M2/347 ,  H01M2/348 ,  H01M6/42 ,  H01M10/0481 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/425 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6566 ,  H01M2200/10 ,  H01M2200/101 ,  H01M2200/103 ,  H01M2200/20 ,  Y02E60/122

Abstract: A battery system having interconnected battery packs (2300) is provided. Each battery pack (2300) includes a plurality of rectangular prismatic shaped cells (300). Each cell (300) includes a positive terminal at one end and a negative terminal at the other end. The cells (300) are housed in a battery pack housing (2305) in a side-by-side manner. The cells (300) may be electrically connected in series so that the positive terminal for a cell (300) extends toward and contacts the negative terminal of an adjacent cell (300) and the negative terminal for the cell (300) extends toward and contacts the positive terminal of another adjacent cell (300).

公开(公告)号：EP2210295A1

公开(公告)日：2010-07-28

申请号：EP08867675.4

申请日：2008-12-24

Applicant: BYD Company Limited

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

IPC: H01M2/08 ,  H01M2/04 ,  H01M2/34 ,  H01M10/02

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: An electrochemical storage cell having a coiled core is disclosed. The coiled core includes a cathode sheet, an anode sheet, and a separator sheet. An anode connector is connected with the anode sheet at a first end of the coiled core and a cathode connector is connected with the cathode sheet at a second, opposite end of the coiled core. The coiled core has a length Lcore and a width Wcore and each connector has a width Wconnector. The length of the coiled core Lcore, width of the coiled core Wcore, and width of each connector Wconnector have the relationship 0core-Wconnector)/Lcore

Abstract translation: 公开了一种具有卷芯的电化学蓄电池。 线圈芯包括阴极片，阳极片和隔板片。 阳极连接器在线圈芯的第一端处与阳极片连接，阴极连接器在线圈芯的第二相对端与阴极片连接。 线圈芯具有长度Lcore和宽度Wcore，并且每个连接器具有宽度Wconnector。 卷芯的长度Lcore，线圈芯的宽度Wcore和每个连接器的宽度Wconnector的关系为0core-Wconnector）/ Lcore <0.37。