公开(公告)号：US10199615B2

公开(公告)日：2019-02-05

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: H01M2/00 ,  H01M2/04 ,  H01M2/34 ,  H01M2/06

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.

公开(公告)号：US10170734B2

公开(公告)日：2019-01-01

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: H01M2/00 ,  H01M2/04 ,  H01M2/34 ,  H01M10/0525

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：US20170352861A1

公开(公告)日：2017-12-07

申请号：US15485775

申请日：2017-04-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Jian Guo ,  Lingbo Zhu ,  Pinghua Deng ,  Peng Wang ,  Kai Wu

IPC: H01M2/34 ,  H01M2/04

CPC classification number: H01M2/345 ,  H01M2/043 ,  H01M2/26 ,  H01M2200/20 ,  H01M2220/20

Abstract: The present application provides a top cover of a power battery and the power battery. The top cover of the power battery includes a first electrode unit and a second electrode unit, the second electrode unit includes a deformable plate, an insulation piece and a conductive plate, the top cover plate is provided with a deformable plate connecting hole, the deformable plate seals the deformable plate connecting hole, the insulation piece is located underneath the top cover plate, the insulation piece is connected with the top cover plate, the conductive plate is insulated from and fixed with the top cover plate through the insulation piece and is electrically connected with the deformable plate. The power battery includes the above top cover of the power battery. The power battery provided by the present application can effectively prevent breaking, losing efficacy or deformation of the conductive plate during using process.

公开(公告)号：US10305086B2

公开(公告)日：2019-05-28

申请号：US15394629

申请日：2016-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun Li ,  Peng Wang ,  Pinghua Deng ,  Lingbo Zhu ,  Jian Guo

IPC: H01M2/34 ,  H01M2/06 ,  H01M2/30 ,  H01M2/26 ,  H01M2/04 ,  H01M2/12

Abstract: This application provides a top cover of a power battery and a power battery, the top cover includes a top cover sheet, a first electrode unit and a second electrode unit, the first electrode unit includes a turning sheet, an insulating piece and a current cutting-off structure, the current cutting-off structure is fixed in radial projection range of an assembling hole and is electrically connected with the top cover sheet, the turning sheet is fixed at an underneath of the top cover sheet through the insulating piece, the turning sheet is electrically connected with the top cover sheet merely through the current cutting-off structure, and the turning sheet is capable of turning and breaking the current cutting-off structure when an internal pressure of the power battery exceeds a reference pressure, so as to cut off an electrical connection of the current cutting-off structure with the top cover sheet.

公开(公告)号：US10153476B2

公开(公告)日：2018-12-11

申请号：US15258686

申请日：2016-09-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jian Guo ,  Quankun Li ,  Pinghua Deng ,  Peng Wang ,  Lingbo Zhu

IPC: H01M2/26 ,  H01M10/052 ,  H01M2/22 ,  H01M2/24 ,  H01M2/28 ,  H01M10/0525

Abstract: The present application relates to an electrode tab pad plate, the electrode tab pad plate is of a fork shape, including a joint part and two first fork feet, the two first fork feet are arranged in parallel, and a first gap is provided between the two first fork feet, both the first fork feet are connected with the joint part. The electrode tab pad plate provided by the present application, through gathering the electrode tabs at inner sides of the electrode tab pad plate, so that the electrode tabs are gathered toward the direction away from the battery housing, so as to guarantee the safety performance of the Li-ion battery, since the space occupied by the electrode tab pad plate is small, which facilitates the improvement of the cell capacity, thereby improving the performance of the battery.

公开(公告)号：US20170352845A1

公开(公告)日：2017-12-07

申请号：US15615062

申请日：2017-06-06

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Jian Guo ,  Peng Wang ,  Pinghua Deng ,  Lingbo Zhu

IPC: H01M2/04 ,  H01M2/02 ,  H01M2/08 ,  H01M2/12

CPC classification number: H01M2/0417 ,  H01M2/0212 ,  H01M2/0277 ,  H01M2/08 ,  H01M2/1229 ,  H01M2/1241 ,  H01M2/345

Abstract: Provided is a top cover for power battery, including a top cover plate, a first electrode unit including a connecting plate, a deformable plate, an insulating piece and a current interrupt plate, and a second electrode unit, insulating piece, an assembling hole is formed in the top cover plate, the current interrupt plate is in the assembling hole and electrically connected with the top cover plate, the connecting plate is insulated from the top cover plate through the insulating piece, an accommodating chamber facing to the assembling hole is formed in the connecting plate, the deformable plate is attached to the connecting plate and covers the accommodating chamber, the second electrode unit is electrically insulated from the top cover plate, and the deformable plate configured to uncouple from the current interrupt plate when internal pressure of power battery goes beyond reference pressure.