公开(公告)号：US20200287179A1

公开(公告)日：2020-09-10

申请号：US16441895

申请日：2019-06-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Peng WANG ,  Haizu JIN ,  Linggang ZHOU ,  Dongyang SHI ,  Xingdi CHEN ,  Kaijie YOU

IPC: H01M2/10 ,  H01M2/12 ,  H01M10/04

Abstract: Disclosed is a battery module including a battery cell array structure, an upper cap and a lower cap, the battery cell array structure is disposed between the upper cap and the lower cap. Each battery cell includes an electrode assembly and a battery case. The electrode assembly is of a wound structure and flat, outer surface of the electrode assembly includes two flat surfaces facing each other in a vertical direction; or the electrode assembly is of a laminated structure, the first electrode plate, the separator and the second electrode plate are laminated in the vertical direction. Being distinguished from the existing technology, the maximum swelling force of the battery module may be reduced, thus end plates with smaller volumes may be selected to improve energy density of the battery module.

公开(公告)号：US20190326561A1

公开(公告)日：2019-10-24

申请号：US16135137

申请日：2018-09-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jie ZHANG ,  Xiaorong LIU ,  Zhijun GUO ,  Peng WANG ,  Guowei LI

IPC: H01M2/02 ,  H01M2/30 ,  H01M2/26 ,  H01M2/04

Abstract: The disclosure provides a secondary battery and a battery module. The secondary battery comprises: a case having an accommodation space and a first opening in communication with the accommodation space; an electrode component disposed in the accommodation space; a cover plate being installed at the first opening; wherein a connection slot is formed at a joint between the cover plate and the case, and the connection slot extends in a direction away from the accommodation space and throughout a top surface of the cover plate; and a first connection member being disposed in the connection slot, wherein the cover plate and the case are hermetically connected via the first connection member.

公开(公告)号：US20190027717A1

公开(公告)日：2019-01-24

申请号：US15950617

申请日：2018-04-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Baisong CHEN ,  Peng WANG ,  Kai WU ,  Zhiyu WANG ,  Xiaobo CHEN ,  Taosheng ZHU

IPC: H01M2/04 ,  H01M2/30 ,  H01M2/34

CPC classification number: H01M2/0486 ,  H01M2/0473 ,  H01M2/30 ,  H01M2/345 ,  H01M2/348 ,  H01M2200/103 ,  H01M2200/20

Abstract: Provided are a top cover assembly and a secondary battery containing the same. The top cover assembly includes a first electrode terminal, a conduction member, a second electrode terminal, and a top cover plate insulated from the first electrode terminal and electrically connected to the second electrode terminal, the secondary battery further comprises a contact plate which is attached to the top cover plate, the conduction member is insulated from the top cover plate and comprises an electrode terminal connection portion, a first fuse member, a contact plate connection portion, and a connection layer, the first fuse member has a melting point lower than the electrode terminal connection portion and the contact plate connection portion; the first fuse member is connected to the electrode terminal connection portion via the connection layer, and/or the first fuse member is connected to the contact plate connection portion via the connection layer.

公开(公告)号：US20180138491A1

公开(公告)日：2018-05-17

申请号：US15669936

申请日：2017-08-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang LI ,  Rulai CAI ,  Peng WANG ,  Wei YANG

IPC: H01M2/34 ,  H01M2/30

CPC classification number: H01M2/345 ,  H01M2/0426 ,  H01M2/0473 ,  H01M2/0486 ,  H01M2/06 ,  H01M2/30 ,  H01M2/348 ,  H01M2200/103 ,  H01M2200/20

Abstract: A secondary battery, including an electrode assembly, a positive terminal, a negative terminal, a top cover plate, a conductive plate and a contact plate, wherein the electrode assembly includes a positive electrode plate, a negative electrode plate and a separator provided therebetween, the positive electrode plate is electrically connected with the positive terminal, and the negative electrode plate is electrically connected with the negative terminal, the contact plate is attached to the negative terminal, the top cover plate is insulated from the negative terminal and is electrically connected with the positive terminal, the conductive plate is fixedly connected with the top cover plate, the contact plate is configured to deform under gas pressure to be in contact with the conductive plate when an internal pressure of the secondary battery exceeds a reference pressure.

公开(公告)号：US20170352860A1

公开(公告)日：2017-12-07

申请号：US15435681

申请日：2017-02-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun LI ,  Pinghua DENG ,  Peng WANG ,  Jian GUO ,  Lingbo ZHU ,  Yongshou LIN

IPC: H01M2/34 ,  H01M2/04 ,  H01M2/08

Abstract: The present application provides a top cover of power battery, including top cover plate, first electrode unit and second electrode unit, the first electrode unit includes insulation piece, conductive plate, deformable plate and sealing piece, the top cover plate is provided with deformable plate connecting hole and fixing hole, the deformable plate seals the deformable plate connecting hole, the insulation piece is provided with top cover plate connecting portion and conductive plate connecting portion, the insulation piece is fixed underneath the top cover plate through cooperation of top cover plate connecting portion and fixing hole, the conductive plate is insulated from and fixed with the top cover plate through the conductive plate connecting portion, the conductive plate is electrically connected with the deformable plate, the sealing piece seals path from the fixing hole to interior of the power battery passing through gap between insulation piece and top cover plate.

公开(公告)号：US20240421450A1

公开(公告)日：2024-12-19

申请号：US18818941

申请日：2024-08-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long CHEN ,  Denghua LIN ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/569 ,  H01M10/48 ,  H01M50/188 ,  H01M50/249 ,  H01M50/593

Abstract: A battery cell, a battery and an electricity-consuming device are provided by the present application. The battery cell includes a casing and a connecting terminal. The casing includes a mounting hole. The connecting terminal is at least partially arranged in the mounting hole, insulated from the casing, and configured for information exchange between an interior and an exterior of the battery cell.

公开(公告)号：US20240372230A1

公开(公告)日：2024-11-07

申请号：US18776293

申请日：2024-07-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Peng WANG ,  Chuan LI

IPC: H01M50/536 ,  H01M10/0525 ,  H01M50/533 ,  H01M50/54

Abstract: The application provides an electrode assembly, a battery cell, a battery and an electric device. The electrode assembly includes a main body and at least one electrode tab. The electrode tab includes a plurality of sub electrode tabs extending from an end of the main body and arranged in stacked layers. The plurality of sub electrode tabs are connected by welding and forming a welding portion. The welding portion includes a thinned region. A thickness of the thinned region is less than a maximum thickness of the welding portion. The production efficiency and yield of batteries can be enhanced.

公开(公告)号：US20240372178A1

公开(公告)日：2024-11-07

申请号：US18771506

申请日：2024-07-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun LI ,  Qi CHENG ,  Chengyou XING ,  Peng WANG ,  Haizu JIN

IPC: H01M50/112 ,  H01M10/04 ,  H01M50/15 ,  H01M50/169 ,  H01M50/548

Abstract: A battery includes electrode assemblies and a shell assembly. The electrode assembly comprises two tabs. A plurality of accommodating cavities are formed inside the shell assembly, and accommodates at least one of the electrode assemblies, and adjacent cavities share a partition wall that partitions the two adjacent accommodating cavities. The shell assembly includes a plurality of output assemblies, each of the cavities is correspondingly provided with one of the output assemblies which each include two output electrodes respectively configured to be electrically connected to the two tabs of the electrode assembly in the corresponding cavity.

公开(公告)号：US20240347863A1

公开(公告)日：2024-10-17

申请号：US18756687

申请日：2024-06-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Chunguang XU ,  Quankun LI ,  Peng WANG

IPC: H01M50/474 ,  H01M10/48 ,  H01M50/107

CPC classification number: H01M50/474 ,  H01M10/488 ,  H01M50/107 ,  H01M2220/20

Abstract: The present application provides a battery cell, a battery, and an electrical device. The battery cell comprises a case, a cell, a first expandable member, and a second expandable member. The cell is arranged inside the case. There is a gap between an outer wall of the cell and an inner wall of the case. The first and second expandable members are both arranged in the gap and are configured to expand when encountering an electrolyte solution to fill the gap. The first and second expandable members are spaced apart and can expand when encountering the electrolyte solution. After expansion, the gap between the cell and the case can be reduced, thereby restricting relative movement between the cell and the case, reducing the possibility of fatigue fracture of connecting sheets, and contributing to protecting tabs.

公开(公告)号：US20240313374A1

公开(公告)日：2024-09-19

申请号：US18670726

申请日：2024-05-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haibo KE ,  Quankun LI ,  Xiang MEI ,  Peng WANG ,  Ningsheng WU ,  Yanlin CHEN

IPC: H01M50/586 ,  H01M10/04 ,  H01M50/367

CPC classification number: H01M50/586 ,  H01M10/0404 ,  H01M50/367

Abstract: An insulator, used for a battery cell, includes: an insulator body, having a first surface and a second surface oppositely disposed in its thickness direction, the first surface facing an electrode assembly of the battery cell, and the second surface facing away from the electrode assembly; and a protrusion, formed on the first surface and used for abutting against the electrode assembly; wherein the protrusion is provided with an air vent, and the air vent runs through the protrusion in a direction intersecting with the thickness direction.