公开(公告)号：US20220255176A1

公开(公告)日：2022-08-11

申请号：US17544005

申请日：2021-12-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Xiangyan BU ,  Quankun LI

IPC: H01M50/249 ,  B60L50/64 ,  H01M50/204

Abstract: An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a manufacturing equipment and method for a battery cell. The battery cell includes a housing, an electrode assembly, an end cover to cover the housing, and an electrode terminal installed on the end cover and electrically connected with the electrode assembly. The end cover includes a first body and a first convex portion, and the first convex portion extends from the first inner surface of the first body along a direction facing the electrode assembly, a position on the first body corresponding to the first convex portion is formed with a first concave portion recessed from the first outer surface opposite to the first inner surface along the direction facing the electrode assembly, the first concave portion is configured to accommodate the electrode terminal. The battery cell can effectively increase the battery capacity.

公开(公告)号：US20220123417A1

公开(公告)日：2022-04-21

申请号：US17564108

申请日：2021-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Siying HUANG ,  Quankun LI ,  Shiyao ZHANG ,  Jinmei XU ,  Fenggang ZHAO ,  Peng WANG

IPC: H01M50/271 ,  H01M50/143

Abstract: The present application relates to the field of an energy storage device, and more particularly, to a top cover assembly of a secondary battery, the secondary battery and an apparatus using a battery. The top cover assembly includes: a top cover sheet provided with an explosion-proof hole; an explosion-proof sheet, a position of the explosion-proof sheet corresponding to the explosion hole; and a fixing member, at least part of the fixing member being located between the top cover sheet and the explosion-proof sheet and connecting the top cover sheet and the explosion-proof sheet; where one of the explosion-proof hole and the fixing member is provided with a protrusion and the other is provided with a first groove, and the protrusion and the first groove are fixed.

公开(公告)号：US20220013848A1

公开(公告)日：2022-01-13

申请号：US17113010

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Jianxiong YANG ,  Peng WANG ,  Zhijun GUO ,  Quankun LI ,  Zhanyu SUN

IPC: H01M50/30 ,  H01M10/42 ,  H01M10/613 ,  H01M10/647 ,  H01M50/249 ,  H01M50/271

Abstract: Disclosed are a battery box, a battery cell, a battery, and a method and apparatus for preparing the battery box. The battery box includes a pressure relief region including a first recess arranged at an inner surface of the battery box and a second recess arranged at an outer surface of the battery box, the first recess being arranged opposite to the second recess, wherein a third recess is provided at a bottom wall of the first recess and/or a bottom wall of the second recess, and the pressure relief region is configured to fracture at the third recess, when an internal pressure of the battery box reaches a threshold, to relieve the internal pressure. According to the battery box, the battery cell, the battery, and the method and apparatus for preparing the battery box disclosed in the present application, the pressure relief region is easy to machine.

公开(公告)号：US20210376303A1

公开(公告)日：2021-12-02

申请号：US17120593

申请日：2020-12-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou XING ,  Chengdu LIANG ,  Ningsheng WU ,  Wenlong KANG ,  Peng WANG ,  Quankun LI ,  Lingyan JIANG

IPC: H01M2/02

Abstract: The present disclosure relates to a secondary battery, a battery module, and a device using the secondary battery as a power source. The secondary battery includes a casing and a top cover for connecting with the casing. The casing includes an end portion provided with an opening. The top cover is used to cover the opening of the casing. The top cover includes an inserting portion extending into the casing from the opening. A plurality of notches are provided on an inner side of the end portion of the casing or on a side wall of the inserting portion facing the casing. In the secondary battery, the battery module, and the device using the secondary battery as a power source according to the present disclosure, the secondary battery can reduce the possibility of short circuit occurring in the electrode assembly and improve the operational safety of the secondary battery.

公开(公告)号：US20210359365A1

公开(公告)日：2021-11-18

申请号：US17059991

申请日：2020-09-30

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuanbao CHEN ,  Quankun LI ,  Peng WANG ,  Lingyan JIANG

IPC: H01M50/188 ,  H01M50/152

Abstract: The present disclosure relates to an end cover assembly, a battery cell, a battery pack and a device. The end cover assembly includes a cover assembly, a terminal assembly, a sealing piece and a first connected flow channel. The cover assembly is provided with an installation hole, and the installation hole penetrates through the cover assembly along an axial direction of the installation hole; the terminal assembly is installed in the installation hole; the sealing piece is configured to seal the installation hole; the first connected flow channel is arranged in at least one of the terminal assembly and the cover assembly, and the first connected flow channel is configured as follows: when the sealing of the sealing piece is invalid, the first connected flow channel enables the inside and the outside of the housing to be communicated through the installation hole.

公开(公告)号：US20210043902A1

公开(公告)日：2021-02-11

申请号：US16941419

申请日：2020-07-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shiyao ZHANG ,  Quankun LI ,  Peng WANG ,  Zhanyu SUN ,  Siying HUANG ,  Jinmei XU

IPC: H01M2/12 ,  H01M2/04 ,  H01M2/30 ,  H01M2/34 ,  H01M10/04 ,  H01M2/10

Abstract: A cover assembly of a secondary battery. The cover assembly includes: a cover plate including a gas vent; a gas exhaust valve configured to seal the gas vent and deform in response to an increase in temperature to get out of a state of sealing the gas vent; and a sealing part arranged between the gas exhaust valve and the cover plate and surrounding the gas vent for sealing a gap between the gas exhaust valve and the cover plate.

公开(公告)号：US20190280257A1

公开(公告)日：2019-09-12

申请号：US16033201

申请日：2018-07-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Baisong CHEN ,  Quankun LI ,  Peng WANG ,  Chengyou XING ,  Yulian ZHENG

IPC: H01M2/06 ,  H01M2/04

Abstract: A top cap assembly of a secondary battery and second battery is provided. The top cap assembly may comprise: a top cap plate comprising an electrode extraction hole; an electrode terminal comprising a terminal plate, the terminal plate may be located on a side of the top cap plate and cover the electrode extraction hole; a first fixing component, the first fixing component may at least partially surround the terminal plate to fix the electrode terminal to the first fixing component; and a second fixing component comprising a main body and a first connection portion connected to the main body and extends away from the terminal plate, the main body may be fixedly connected to the first fixing component, and the first connection portion may be fixedly connected to the top cap plate.

公开(公告)号：US20190123313A1

公开(公告)日：2019-04-25

申请号：US16221959

申请日：2018-12-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jian GUO ,  Quankun LI ,  Pinghua DENG ,  Peng WANG ,  Lingbo ZHU ,  Qingkui CHI

IPC: H01M2/04 ,  H01M10/04 ,  H01M2/02 ,  H01M2/06 ,  H01M2/12 ,  H01M2/26 ,  H01M2/30

CPC classification number: H01M2/0469 ,  H01M2/028 ,  H01M2/06 ,  H01M2/1247 ,  H01M2/263 ,  H01M2/30 ,  H01M10/0431 ,  H01M2220/20

Abstract: The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is beneath the electrode tab pad plate, the welding part is above the electrode tab pad plate, and the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab.

公开(公告)号：US20170352846A1

公开(公告)日：2017-12-07

申请号：US15349938

申请日：2016-11-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun LI ,  Jian GUO ,  Peng WANG ,  Pinghua DENG ,  Kai WU ,  Yongshou LIN

IPC: H01M2/04 ,  H01M2/34 ,  H01M10/0525

CPC classification number: H01M2/0473 ,  H01M2/043 ,  H01M2/345 ,  H01M10/0525 ,  H01M2200/20 ,  H01M2220/20

Abstract: The present application provides a top cover of a power battery, including a top cover plate, a first electrode unit and a second electrode unit, the top cover plate is provided with a deformable plate connecting hole and an insulation piece accommodating portion, the first electrode unit includes a deformable plate, a conductive plate and a first insulation piece, the deformable plate seals the deformable plate connecting hole, the conductive plate is located underneath the deformable plate, the first insulation piece includes a top cover plate connecting portion and a conductive plate connecting portion, the top cover plate connecting portion extends into the insulation piece accommodating portion and is fixed thereof, the conductive plate is insulated and fixed with the top cover plate through the conductive plate connecting portion. The present application further provides a power battery, including the top cover of the power battery.

公开(公告)号：US20160365547A1

公开(公告)日：2016-12-15

申请号：US15179921

申请日：2016-06-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun LI ,  Pinghua DENG ,  Peng WANG ,  Kai WU ,  Junjie JIANG

IPC: H01M2/04 ,  H01M2/06

CPC classification number: H01M2/0486 ,  H01M2/043 ,  H01M2/0443 ,  H01M2/0456 ,  H01M2/06 ,  H01M2/345 ,  H01M2200/20 ,  H01M2220/20

Abstract: The top cover structure of the power battery includes a cap plate, a cathode column, a conducting piece and a reversing piece, the conducting piece is electrically connected with the cathode column, the cathode column is insulatedly assembled with the cap plate; the reversing piece includes a welding part, a embossment with a solid core structure and a joint part arranged between the welding part and the embossment, the embossment is arranged at the center of the joint part, the welding part is arranged on the outer margin of the joint part; the welding part is electrically connected with the cap plate, the embossment does not contact the conducting piece, when the pressure inside the power battery increases, the reversing piece receives the pressure inside the power battery, and moves upwards, so that the embossment is electrically connected to the conducting piece.

Abstract translation: 动力电池的顶盖结构包括盖板，阴极柱，导电片和反向片，导电片与阴极柱电连接，阴极柱与盖板绝缘组装; 反转片包括焊接部分，具有实心芯结构的压花和布置在焊接部分和压纹之间的接合部分，压纹布置在接合部分的中心处，焊接部分布置在 联合部分; 焊接部与盖板电连接时，压电体不接触导电片，当动力电池内部的压力增大时，反转片承受动力电池内部的压力，向上运动，使压电电气 连接到导电件。