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：US20190067649A1

公开(公告)日：2019-02-28

申请号：US15894767

申请日：2018-02-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Baisong Chen ,  Jian Guo ,  Peng Wang ,  Taosheng Zhu

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

Abstract: The present disclosure provides a cap assembly for a secondary battery and a secondary battery. The cap assembly for the secondary battery includes a cap plate having an electrode lead-out hole; and a terminal assembly including a terminal board, a fixing member, a deformable sheet, a conductive sheet and an isolator, wherein the deformable sheet is attached to the terminal board; the conductive sheet includes a first portion provided between the terminal board and the cap plate; the terminal board is fixed to a side of the cap plate through the fixing member and covers the electrode lead-out hole, and the terminal board is electrically connected with the first portion through the deformable sheet; the deformable sheet is configured to deform to be electrically disconnected from the first portion in response to an increase in a pressure inside the secondary battery.

公开(公告)号：US10818886B1

公开(公告)日：2020-10-27

申请号：US16559643

申请日：2019-09-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Baisong Chen

IPC: H01M2/04 ,  H01M2/06

Abstract: The present disclosure relates to a secondary battery. The secondary battery includes a cap assembly including a cap plate provided with an electrode lead-out hole, an electrode terminal covering the electrode lead-out hole, a sealing ring disposed between the cap plate and the electrode terminal, and a lower insulating member including a base portion and a protruding portion connected to each other, wherein the base portion is located at a lower side of the cap plate and the protruding portion is at least partially located in the electrode lead-out hole; a current collecting member including a body portion and an extending portion connected to each other, wherein the body portion is located below the base portion, and the extending portion extends into the electrode lead-out hole and is connected to the electrode terminal; and a support member disposed between the body portion and the base portion.

公开(公告)号：US20200328384A1

公开(公告)日：2020-10-15

申请号：US16574966

申请日：2019-09-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu Liang ,  Kai Wu ,  Baisong Chen

IPC: H01M2/04 ,  H01M2/06 ,  H01M2/08

Abstract: The present disclosure relate to the technical field of secondary batteries, and in particular, to a secondary battery and a top cover component thereof. The top cover component provided by the present disclosure includes a top cover plate having an electrode lead-out hole, and a second sealing portion and a second insulating portion stretching into the electrode lead-out hole, and the second sealing portion and the second insulating portion are at least partially staggered to each other on the radial direction of the electrode lead-out hole and are at least partially overlapped on the height direction. Based on this, a direct discharge clearance can be effectively blocked, and the creepage distance can be prolonged, thereby being conducive to reducing the risk of on fire or explosion and other problems of the secondary battery while withstanding a high voltage.

公开(公告)号：US10651435B2

公开(公告)日：2020-05-12

申请号：US15950638

申请日：2018-04-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Baisong Chen ,  Peng Wang ,  Zhiyu Wang ,  Quankun Li ,  Taosheng Zhu

IPC: H01M2/04 ,  H01M2/34 ,  H01M2/30

Abstract: A top cover assembly for secondary battery, including: first and second electrode terminals; a top cover plate insulated from the first electrode terminal and electrically connected with the second electrode terminal; a contact piece attached to the top cover plate; and a thermo-deformable piece opposite to the contact piece, one end being electrically connected with the first electrode terminal, the other end being a free end; when a temperature at which the thermo-deformable piece deforms is not reached and internal pressure of the secondary battery exceeds a reference pressure, the contact piece deforms to be electrically connected with the thermo-deformable piece so that the first electrode terminal is electrically connected with the second electrode terminal, and when the temperature at which the thermo-deformable piece deforms is reached, the free end deforms away from the contact piece, and the thermo-deformable piece is kept insulated from the contact piece.

公开(公告)号：US11482761B2

公开(公告)日：2022-10-25

申请号：US16794894

申请日：2020-02-19

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Peng Wang ,  Taosheng Zhu ,  Baisong Chen

IPC: H01M50/528 ,  H01M50/147 ,  H01M50/148 ,  H01M50/155 ,  H01M50/172 ,  H01M50/502 ,  H01M50/543 ,  H01M10/42 ,  H01M50/538 ,  H01M10/052

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.

公开(公告)号：US11367917B2

公开(公告)日：2022-06-21

申请号：US17078173

申请日：2020-10-23

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Baisong Chen

IPC: H01M50/147 ,  H01M50/172

Abstract: The present disclosure relates to a secondary battery. The secondary battery includes a cap assembly including a cap plate provided with an electrode lead-out hole, an electrode terminal covering the electrode lead-out hole, a sealing ring disposed between the cap plate and the electrode terminal, and a lower insulating member including a base portion and a protruding portion connected to each other, the base portion is located at a lower side of the cap plate and the protruding portion is at least partially located in the electrode lead-out hole; a current collecting member including a body portion and an extending portion connected to each other, the body portion is located below the base portion, and the extending portion extends into the electrode lead-out hole and is connected to the electrode terminal; and a support member disposed between the body portion and the base portion.

公开(公告)号：US10658647B2

公开(公告)日：2020-05-19

申请号：US15894779

申请日：2018-02-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Peng Wang ,  Taosheng Zhu ,  Baisong Chen

IPC: H01M2/22 ,  H01M2/06 ,  H01M2/04 ,  H01M2/30 ,  H01M2/20 ,  H01M10/42 ,  H01M10/052 ,  H01M2/26

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.

公开(公告)号：US10608232B2

公开(公告)日：2020-03-31

申请号：US15894779

申请日：2018-02-12

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun Li ,  Peng Wang ,  Taosheng Zhu ,  Baisong Chen

IPC: H01M2/22 ,  H01M2/06 ,  H01M2/04 ,  H01M2/30 ,  H01M2/20 ,  H01M10/42 ,  H01M10/052 ,  H01M2/26

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.

公开(公告)号：US10601001B2

公开(公告)日：2020-03-24

申请号：US15686075

申请日：2017-08-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Baisong Chen ,  Zhiyu Wang ,  Peng Wang

IPC: H01M2/26 ,  H01M2/04 ,  H01M2/06 ,  H01M2/34 ,  H01M2/02 ,  H01M2/30

Abstract: A secondary battery, including a first terminal assembly, a second terminal assembly, a top cover plate, an electrode assembly and a first sealing piece; at least one of the first and second terminal assemblies is electrically insulated from the top cover plate; the first terminal assembly includes a connecting plate and deformable plate, the connecting plate is located at a side of the top cover plate away from the electrode assembly, the deformable plate is attached to the connecting plate; the first sealing piece is connected between the connecting plate and the top cover plate; in normal state, the first electrode plate is electrically connected with the connecting plate via the deformable plate, the second plate is electrically connected with the second terminal assembly; when internal pressure of the secondary battery exceeds reference pressure, the deformable plate can deform to electrically disconnect from the first electrode plate.