公开(公告)号：US20230344047A1

公开(公告)日：2023-10-26

申请号：US18215850

申请日：2023-06-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Rulai CAI ,  Xiaobo CHEN ,  Liwen JIANG ,  Fuping LUO ,  Yongshou LIN

IPC: H01M50/188 ,  H01M50/15

CPC classification number: H01M50/188 ,  H01M50/15

Abstract: An end cover assembly may include: a cover plate provided with an electrode lead-out hole; an electrode terminal located on one side of the cover plate in a thickness direction and covering the electrode lead-out hole; and a sealing element disposed between the electrode terminal and the cover plate so as to seal the electrode lead-out hole along a circumference of the electrode lead-out hole. The sealing element may include a body and a first insulating element. The first insulating element may be connected to the body and have a higher melting point than the body. The first insulating element may be configured to insulate the electrode terminal from the cover plate after the body is melted, so as to keep electrode terminals of two polarities insulated from each other at thermal runaway of a battery cell.

公开(公告)号：US20180138488A1

公开(公告)日：2018-05-17

申请号：US15479216

申请日：2017-04-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhiyu WANG ,  Peng WANG ,  Rulai CAI ,  Baisong CHEN

IPC: H01M2/34 ,  H01M2/04

CPC classification number: H01M2/345 ,  H01M2/043 ,  H01M2/1229 ,  H01M2/30 ,  H01M2200/20 ,  H01M2220/20

Abstract: The present application relates to a top cover structure for a power battery and a power battery, the top cover structure includes a first electrode assembly, a second electrode assembly, a first resistance, a second resistance, a top cover plate, a first short circuit component and a second short circuit component, the first electrode assembly is electrically connected with the top cover plate through the first resistance for all time, the first short circuit component and the second short circuit component are both attached onto the top cover plate, when an internal pressure of the power battery exceeds a reference pressure, the first short circuit component and the second short circuit component deform by effect of pressure, so as to form a first electrical connecting path and a second electrical connecting path, the second resistance is connected into the first electrical connecting path in series.

公开(公告)号：US20220376360A1

公开(公告)日：2022-11-24

申请号：US17875174

申请日：2022-07-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Rulai CAI ,  Liwen Jiang ,  Fuping Luo ,  Tingting Zhu ,  Wumei Fang

IPC: H01M50/503 ,  H01M50/213 ,  H01M50/548 ,  H01M50/516 ,  H01M50/526

Abstract: This application discloses a battery, an electrical device, and a method and device for manufacturing a battery. The battery includes: a plurality of battery cells arranged along a first direction, where electrode terminals are disposed on two end faces of each of the battery cells along the first direction respectively; and a busbar component, configured to connect the two electrode terminals to implement electrical connection between two battery cells. The busbar component includes a flexible bend portion. The flexible bend portion is configured to adjust a relative position between the two electrode terminals. A maximum width of the flexible bend portion along the first direction is greater than a distance between the two electrode terminals. The flexible bend portion disposed in the busbar component can be bent in various forms to meet a requirement of electrically connecting the two battery cells arranged at a variety of relative positions.

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：US20230387520A1

公开(公告)日：2023-11-30

申请号：US18446716

申请日：2023-08-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Rulai CAI ,  Liwen JIANG ,  Fuping LUO ,  Tingting ZHU ,  Wumei FANG

IPC: H01M50/152 ,  H01M50/538 ,  H01M50/548 ,  H01M50/186 ,  H01M50/559 ,  H01M50/166

CPC classification number: H01M50/152 ,  H01M50/538 ,  H01M50/548 ,  H01M50/186 ,  H01M50/559 ,  H01M50/166 ,  H01M2220/20

Abstract: An end cover assembly applied to a battery cell includes an end cover provided with an electrode lead-out hole and including a first mating portion provided at a side, facing inside of the battery cell, of the end cover, an electrode terminal disposed at the end cover and covering the electrode lead-out hole, and a connecting member configured to electrically connect the electrode terminal and an electrode assembly of the battery cell. The connecting member includes a second mating portion configured to be mated with the first mating portion to provide deformation resistance of the connecting member along a radial direction of the electrode lead-out hole.

公开(公告)号：US20190157656A1

公开(公告)日：2019-05-23

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: H01M4/13 ,  H01M10/0525 ,  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：US20180166675A1

公开(公告)日：2018-06-14

申请号：US15657739

申请日：2017-07-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Zhiyu WANG ,  Baisong CHEN ,  Peng WANG ,  Rulai CAI

IPC: H01M2/34

CPC classification number: H01M2/345 ,  H01M2/0404 ,  H01M2/06 ,  H01M2/1241 ,  H01M2200/108 ,  H01M2200/20

Abstract: The present application provides a secondary battery including a first terminal component, a second terminal component, a cap plate, an electrode component and a resistance element. One of the first and second terminal components is electrically connected to the cap plate through the resistance element, while the other is insulated from the cap plate. The first terminal component includes a connecting plate and a turnable plate, and the connecting plate is attached to the turnable plate. When the secondary battery is in a normal state, a first electrode plate is electrically connected to the connecting plate through the turnable plate, and the second electrode plate is electrically connected to the second terminal component. When a pressure inside the secondary battery exceeds a reference pressure, the turnable plate can turn over to cut off an electrical connection between the turnable plate and the first electrode plate.

公开(公告)号：US20180159107A1

公开(公告)日：2018-06-07

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 ,  H01M2/30 ,  H01M2/06

CPC classification number: H01M2/202 ,  H01M2/04 ,  H01M2/06 ,  H01M2/22 ,  H01M2/30 ,  H01M2/348 ,  H01M2200/103

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.