公开(公告)号：US10790483B2

公开(公告)日：2020-09-29

申请号：US15881089

申请日：2018-01-26

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou Xing ,  Quankun Li ,  Peng Wang ,  Zhijun Guo

IPC: H01M2/04 ,  H01M2/08 ,  H01M2/30 ,  H01M2/06 ,  H01M10/05

Abstract: A top cap structure for a power battery is provided. The power battery top cap structure includes a first and second electrode assemblies, and a top cap piece. The first electrode assembly includes a first electrode column having an upper and lower sections, a first seal member and a first connection block. The upper section and the first connection block are formed from a first base metal. The lower section is formed from a second base metal different from the first base metal. The upper section includes a step portion, and the lower section is joined with a bottom surface of the upper section below the top cap piece. The first seal member includes a horizontal extending portion. The horizontal extending portion is disposed between a lower surface of the top cap piece and the step portion. The top portion of the upper section connects with the first connection block.

公开(公告)号：US10784475B2

公开(公告)日：2020-09-22

申请号：US15873527

申请日：2018-01-17

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian Zheng ,  Chengyou Xing ,  Quankun Li ,  Peng Wang ,  Lulu Bai

IPC: H01M2/04 ,  H01M2/30 ,  H01M2/06 ,  H01M2/08 ,  H01M2/02 ,  H01M2/12

Abstract: The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly includes a cap plate, a fixing member, a connecting member and an electrode terminal, wherein the cap plate has an electrode lead-out hole; the fixing member is fixed to the cap plate through the connecting member and provided with a weakened portion that is close to a center line of the cap plate in a width direction of the cap plate; and the electrode terminal includes a terminal board, wherein the terminal board has an outer peripheral surface at least partially surrounded by the fixing member so that the electrode terminal is fixed to the fixing member, and the terminal board is provided on a side of the cap plate and covers the electrode lead-out hole.

公开(公告)号：US10763466B2

公开(公告)日：2020-09-01

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: H01M2/30 ,  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：US10756327B2

公开(公告)日：2020-08-25

申请号：US16101290

申请日：2018-08-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyou Xing

IPC: H01M2/34 ,  H01M2/12 ,  H01M2/04

Abstract: The present disclosure provides a secondary battery top cover assembly, a secondary battery and a vehicle. The top cover assembly includes: a top cover plate; an electrode terminal; and a short-circuit component including a deformable plate and a conductive plate disposed above the deformable plate. The deformable plate is connected to the top cover plate, and the conductive plate is connected to the electrode terminal. The conductive plate includes a body portion and a protrusion portion protruding upwardly from the body portion, the conductive plate is provided with a gas hole, and the gas hole cuts through the protrusion portion and the body portion, an inner wall of the gas hole includes an arc-shaped smooth transition portion.

公开(公告)号：US10651498B2

公开(公告)日：2020-05-12

申请号：US16167738

申请日：2018-10-23

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H01M10/04 ,  H01M2/22 ,  H01M2/26 ,  H01M2/04 ,  H01M2/30

Abstract: The present disclosure relates to technical field of energy storage devices, and in particular, to a secondary battery and a vehicle. The secondary battery includes a top cover plate, electrode terminals disposed on the top cover plate, at least one electrode assembly including a main body and a plurality of conductive portions extending from the main body. The plurality of conductive portions is stacked and forms a tab, and the main body is formed by winding a first electrode plate, a second electrode plate and a separator disposed between the first electrode plate and the second electrode plate. The secondary battery also includes connecting pieces for connecting the tab to the electrode terminal. The tabs extend from one side of the main body viewed in thickness direction and are bent with respect to height direction and is connected to the connecting piece.

公开(公告)号：US10586971B2

公开(公告)日：2020-03-10

申请号：US15816975

申请日：2017-11-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yulian Zheng ,  Chengyou Xing ,  Zhijun Guo ,  Peng Wang

IPC: H01M2/26 ,  H01M2/02

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 provided to the main body and a second electrode tab provided to the main body; a first connecting piece connected between the first electrode tab and the first electrode terminal. The second electrode tab is connected with the second electrode terminal. The first electrode tab includes a first connecting portion welded with the first connecting piece and a first bending portion bent downwardly and connected between the main body of the electrode assembly and the first connecting portion. A first insulating adhesive is adhered on weld zones which are formed during welding of the first connecting portion and the first connecting piece and face the main body of the electrode assembly.

公开(公告)号：US20190355944A1

公开(公告)日：2019-11-21

申请号：US16413762

申请日：2019-05-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Shoujun Huang ,  Chengyou Xing ,  Yulian Zheng ,  Peng Wang

IPC: H01M2/04 ,  H01M2/26 ,  H01M2/08 ,  H01M2/34 ,  H01M2/12 ,  H01M10/0525 ,  H01M2/30

Abstract: The present disclosure provides a secondary battery and a top cover assembly thereof. The top cover assembly includes: a top cover plate and a valve sleeve. The top cover plate includes an accommodation groove and a valve part protruding upward from a bottom wall of the accommodation groove, and the valve part is provided with at least one gas exhaust hole that communicates with an interior of the secondary battery. The valve sleeve is located in the accommodation groove and covers the valve part, a gas exhaust passage that communicates with outside is disposed between the valve sleeve and the valve part, and the gas exhaust passage communicates with the at least one gas exhaust hole.

公开(公告)号：US20190221819A1

公开(公告)日：2019-07-18

申请号：US15963621

申请日：2018-04-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyou Xing ,  Zhijun Guo ,  Peng Wang ,  Taosheng Zhu ,  Yulian Zheng

IPC: H01M2/26 ,  H01M10/0525 ,  H01M10/0587

CPC classification number: H01M2/26 ,  H01M2/263 ,  H01M10/0431 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0587 ,  Y02E60/122 ,  Y02T10/7011

Abstract: Provided is a rechargeable battery including an electrode assembly comprising an electrode assembly body and an electrode tab protruding from the electrode assembly body, and a connecting member comprising a guiding plate and a first connecting plate connected to the guiding plate. The guiding plate extends in a width direction and the first connecting plate extends away from a plate surface of the guiding plate along the width direction or extends toward the plate surface of the guiding plate along the width direction. The electrode tab has a stacked multi-layer structure, the electrode tab protrudes from a portion of an end surface of the electrode assembly body in a longitudinal direction at a side of a split of the electrode assembly body perpendicular to the width direction, and the electrode tab is bent with respect to a longitudinal direction and is connected to the first connecting plate.