公开(公告)号：US10998589B2

公开(公告)日：2021-05-04

申请号：US16428357

申请日：2019-05-31

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xingdi Chen ,  Peng Wang ,  Linggang Zhou

IPC: H01M10/625 ,  H01M10/613 ,  H01M10/6554 ,  B60L50/64 ,  B60L50/60 ,  B60K1/04 ,  H01M10/0525 ,  H01M50/20 ,  H01M50/249 ,  H01M50/244 ,  H01M10/615

Abstract: The present disclosure provides a battery pack and an electric vehicle. The battery pack includes a casing wherein the battery is placed, a cooling plate located below the casing in a height direction, and a bracket assembly located below the cooling plate in a height direction and fixedly connected to the casing, the bracket assembly is used for direct contact with a mounting plate of the electric vehicle. When the battery pack of the present disclosure is used in an electric vehicle, since the bracket assembly separates the cooling plate from the mounting plate of the electric vehicle, the cooling plate does not need to directly exchange heat with the mounting plate, thereby reducing the influence of the temperature of the mounting plate on the cooling plate, and increasing the cooling or heating efficiency of the cooling plate to the battery inside the casing.

公开(公告)号：US10991949B2

公开(公告)日：2021-04-27

申请号：US16227938

申请日：2018-12-20

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiang Li ,  Chengyou Xing ,  Peng Wang ,  Rulai Cai

IPC: H01M2/34 ,  H01M4/13 ,  H01M4/75 ,  H01M4/66 ,  H01M50/54 ,  H01M50/572 ,  H01M10/052 ,  H01M4/02

Abstract: The present disclosure relates to an electrode component, an electrode assembly and a rechargeable battery. The electrode component includes an electrode body, a conductive structure, and a reinforcement structure. The electrode body includes an insulating substrate and a conductive layer disposed on surfaces of the insulating substrate, the conductive layer includes a first portion coated with an active material and a second portion extending from the first portion and uncoated with the active material. The conductive structure is connected to the second portion. The reinforcement structure reinforces the conductive structure on the second portion. According to the present disclosure, by reinforcing the conductive structure connected to the second portion of the electrode component having the insulating substrate by the reinforcing structure, the reliability of the arrangement of the conductive structure on the second portion can be effectively improved.

公开(公告)号：US20210111466A1

公开(公告)日：2021-04-15

申请号：US17127622

申请日：2020-12-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang Li ,  Jiajun Wang ,  Rulai Cai ,  Peng Wang ,  Wei Yang

IPC: H01M50/502 ,  H01M50/147 ,  H01M50/172 ,  H01M50/528 ,  H01M50/543 ,  H01M50/572

Abstract: The present disclosure provides a secondary battery which comprises: a cap plate provided with a first electrode terminal; an electrode assembly comprising a main body and a first electrode tab; a first connecting piece connected between the first electrode tab and the first electrode terminal. The first connecting piece includes a first electrode terminal connecting portion, a first electrode tab connecting portion and a first fusing portion. The secondary battery further comprises an insulating piece arranged on the first connecting piece to prevent direct physical contact between the first electrode tab and the first electrode terminal connecting portion by covering at least an edge of the first electrode terminal connecting portion.

公开(公告)号：US10916756B2

公开(公告)日：2021-02-09

申请号：US15816981

申请日：2017-11-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang Li ,  Jiajun Wang ,  Rulai Cai ,  Peng Wang ,  Wei Yang

IPC: H01M2/20 ,  H01M2/06 ,  H01M2/30 ,  H01M2/04 ,  H01M2/22 ,  H01M2/34

Abstract: The present disclosure provides a secondary battery which comprises: a cap plate provided with a first electrode terminal and a second electrode terminal; an electrode assembly comprising a main body, a first electrode tab and a second electrode tab; a first connecting piece connected between the first electrode tab and the first electrode terminal. The second electrode tab is electrically connected with the second electrode terminal. The first connecting piece includes a first electrode terminal connecting portion, a first electrode tab connecting portion and a first fusing portion. The secondary battery further comprises an insulating piece adhered on a surface of the first connecting piece which is connected with the first electrode tab, and the insulating piece at least covers an edge of the first electrode terminal connecting portion close to the first electrode tab, so as to isolate the first electrode tab from the first electrode terminal connecting portion.

公开(公告)号：US10818889B2

公开(公告)日：2020-10-27

申请号：US15981720

申请日：2018-05-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhijun Guo ,  Jie Zhang ,  Taosheng Zhu ,  Peng Wang ,  Guowei Li

IPC: H01M2/04 ,  H01M2/20 ,  H01M2/30

Abstract: The present disclosure provides a battery cap assembly, a secondary battery and a battery module. The battery cap assembly comprises: a cap plate, including a second terminal hole; a first electrode terminal, at least a part of which protruding above the cap plate; a second electrode terminal, including a second protruding portion protruding above the cap plate and a second base portion connected with the second protruding portion. The first electrode terminal is provided with a protrusion used for welding with a first connecting piece; the second protruding portion is used for welding with a second connecting piece to form a welding portion, and a projection of the welding portion in an up-down direction is positioned in a cross-section of the second base portion. The secondary battery comprises a case, an electrode assembly and the battery cap assembly. The battery module comprises the first connecting piece and the secondary batteries.

公开(公告)号：US10804526B2

公开(公告)日：2020-10-13

申请号：US15971642

申请日：2018-05-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang Li ,  Chengyou Xing ,  Peng Wang ,  Rulai Cai

IPC: H01M4/72 ,  H01M4/13 ,  H01M10/0525 ,  H01M4/66 ,  H01M2/26 ,  H01M4/70

Abstract: The present invention relates to the technical field of rechargeable batteries and, in particular, to an electrode member, an electrode assembly and a rechargeable battery. The electrode member of the present invention includes an electrode body. The electrode body includes an insulating base and a conductive layer disposed on a surface of the insulating base. The conductive layer has a first portion and a second portion extending from the first portion, the first portion is adapted to be coated with an active material and the second portion is uncoated with the active material. A portion of the insulating base corresponding to the second portion is provided with a first through-hole throughout a thickness direction.

公开(公告)号：US10777930B2

公开(公告)日：2020-09-15

申请号：US16540965

申请日：2019-08-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianwei Li ,  Shengshen Ruan ,  Zhiqin Weng ,  Linggang Zhou ,  Peng Wang

IPC: H01R13/502 ,  H01M2/10 ,  H01M2/20 ,  H01R13/24 ,  H01R13/42 ,  H01R13/53 ,  H01R13/58 ,  H01R13/6582 ,  H01R13/696

Abstract: The present disclosure provides a mating terminal, a multifunctional high-voltage connector and a battery product, the mating terminal comprises two elastic sheets and a connection sheet. Each of the elastic sheets has: a body portion; an elastic contact portion. The connection sheet has: a first connecting portion; a second connecting portion. The first connecting portion of the connection sheet is fixed between the body portions, the second connecting portion is positioned outside the two elastic sheets in the length direction.

公开(公告)号：US10714721B2

公开(公告)日：2020-07-14

申请号：US15594684

申请日：2017-05-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Pinghua Deng ,  Peng Wang ,  Kai Wu ,  Yongshou Lin

IPC: H01M2/12 ,  H01M10/04 ,  H01M2/14 ,  H01M2/36 ,  H01M2/18 ,  H01M2/02

Abstract: The present invention provides a secondary battery including: a housing, the housing being provided with an explosion proof valve at a bottom thereof, a cell pallet received in the housing and located at a bottom of the housing, the cell pallet being provided with a first through-hole and at least one groove, the first through-hole being aligned with the explosion proof valve and extending through the cell pallet to communicate a space above the cell pallet and a space below the cell pallet, the at least one groove being provided on an upper surface and/or a lower surface of the cell pallet, and the first through-hole communicating with at least one side edge of the cell pallet through the at least one groove; a bare cell received in the housing and seated on the cell pallet; and a top cover assembled to a top side of the housing.

公开(公告)号：US20200161602A1

公开(公告)日：2020-05-21

申请号：US16433680

申请日：2019-06-06

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Lei Wang ,  Xingdi Chen ,  Linggang Zhou ,  Peng Wang ,  Derong Wang

IPC: H01M2/04 ,  H01M2/10 ,  H01M2/02 ,  H01M10/625 ,  H01M10/6556

Abstract: The present disclosure relates to a casing for a battery pack and a battery pack. The casing has a receiving space and an opening in communication with the receiving space, the receiving space is formed by a wall portion of the casing, and the wall portion is formed from two or more stacked base plates, between which a plurality of cavities are formed, wherein an island is disposed within the cavity. By disposing islands in the plurality of cavities, the casing provided by the present disclosure not only can improve the structural strength of the casing and of the cavities, but also can change the flow capacity and flow rate of the fluid in the cavities, which can make the temperature distribution of the casing more uniform, increase the heat exchange efficiency of the battery assembly, and further improve the thermal management of the battery pack.

公开(公告)号：US10651435B2

公开(公告)日：2020-05-12

申请号：US15950638

申请日：2018-04-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Baisong Chen ,  Peng Wang ,  Zhiyu Wang ,  Quankun Li ,  Taosheng Zhu

IPC: H01M2/04 ,  H01M2/34 ,  H01M2/30

Abstract: A top cover assembly for secondary battery, including: first and second electrode terminals; a top cover plate insulated from the first electrode terminal and electrically connected with the second electrode terminal; a contact piece attached to the top cover plate; and a thermo-deformable piece opposite to the contact piece, one end being electrically connected with the first electrode terminal, the other end being a free end; when a temperature at which the thermo-deformable piece deforms is not reached and internal pressure of the secondary battery exceeds a reference pressure, the contact piece deforms to be electrically connected with the thermo-deformable piece so that the first electrode terminal is electrically connected with the second electrode terminal, and when the temperature at which the thermo-deformable piece deforms is reached, the free end deforms away from the contact piece, and the thermo-deformable piece is kept insulated from the contact piece.