公开(公告)号：US20230395894A1

公开(公告)日：2023-12-07

申请号：US18111903

申请日：2023-02-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Xiangyan BU ,  Quankun LI

IPC: H01M10/6551 ,  H01M50/15 ,  H01M10/48 ,  H01M50/184 ,  H01M50/186 ,  H01M10/647

CPC classification number: H01M10/6551 ,  H01M50/15 ,  H01M10/486 ,  H01M50/184 ,  H01M50/186 ,  H01M10/647

Abstract: Embodiments of this application provide an end cap assembly, a battery cell, a battery, and an electrical device. The end cap assembly may be applicable to the battery cell. The end cap assembly may include: an end cap; and an end cap patch attached to the end cap. At least one through-hole may be made on the end cap patch. The through-hole may be configured to be filled with a heat transfer structure. The end cap may exchange heat with the outside through the heat transfer structure so as to regulate a temperature inside the battery cell.

公开(公告)号：US20230198087A1

公开(公告)日：2023-06-22

申请号：US18172036

申请日：2023-02-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/342 ,  H01M50/543 ,  H01M50/578 ,  H01M50/20 ,  H01M50/147 ,  H01M10/04

CPC classification number: H01M50/342 ,  H01M50/543 ,  H01M50/578 ,  H01M50/20 ,  H01M50/147 ,  H01M10/0413 ,  H01M2200/00

Abstract: A 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. The gas exhaust valve includes a metal sheet and a fixing part. The metal sheet seals the gas vent. The sealing part is arranged between the metal sheet and the cover plate for sealing a gap between the metal sheet and the cover plate. The fixing part is connected to the metal sheet. The metal sheet is fixed to the cover plate by the fixing part. The fixing part is configured to deform in response to an increase in temperature in such a manner that the metal sheet gets out of the state of sealing the gas vent.

公开(公告)号：US20220247043A1

公开(公告)日：2022-08-04

申请号：US17554412

申请日：2021-12-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Quankun LI ,  Peng WANG ,  Wenzhong LIU ,  Yanyun QIN

IPC: H01M50/559 ,  H01M10/48 ,  H01M50/213 ,  H01M10/42 ,  H01M50/566

Abstract: An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device, which belong to the field of battery technologies. The battery cell includes an adapting member, the adapting member includes a first connection portion for connecting an electrode terminal and a second connection portion for connecting an electrode assembly, the first connection portion and the second connection portion are dividedly set and connected to each other, and the first connection portion is in a multilayer structure and includes multiple layers of conductive sheets provided in a stacking manner, the second connection portion is in a single-layer structure, and a minimum thickness of the first connection portion is greater than a maximum thickness of the second connection portion.

公开(公告)号：US20210359379A1

公开(公告)日：2021-11-18

申请号：US17059076

申请日：2020-08-10

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H01M50/533 ,  H01M50/645 ,  H01M50/591 ,  H01M50/152 ,  H01M50/543

Abstract: The present application relates to the field of batteries, in particular to a battery, a battery module and an electric equipment. The battery of the present application includes: a connection member, including a first connection portion configured to be electrically connected with an electrode assembly and a second connection portion configured to be electrically connected with an electrode terminal, and the first connection portion is in a folded state along a crease relative to the second connection portion; the crease is arranged between a first end face and a second end face of the first connection portion; and when the connection member is in an expanded state, the second end face and the first end face are arranged along a length direction.

公开(公告)号：US20210119300A1

公开(公告)日：2021-04-22

申请号：US17134012

申请日：2020-12-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/342 ,  H01M50/148

Abstract: This application relates to a cover assembly of a secondary battery. The cover assembly includes a cover plate with an air hole; a blocker inserted into and blocking the air hole; a sealing member disposed between the blocker and the cover plate configured to seal a gap between the blocker and the cover plate; and a fastener disposed inside the air hole. The fastener is connected to the cover plate, the blocker is connected to the cover plate through the fastener. The fastener is configured to deform in response to a temperature rise, so that the blocker stops blocking the air hole. The blocker stops blocking the air hole as a temperature inside a housing rises, to discharge gas from the housing through the air hole. In this way, the secondary battery can be prevented from an explosion, while partial heat is taken away through gas discharge.

公开(公告)号：US20190109302A1

公开(公告)日：2019-04-11

申请号：US15874508

申请日：2018-01-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yulian ZHENG ,  Chengyou XING ,  Quankun LI ,  Peng WANG ,  Lulu BAI

IPC: H01M2/02 ,  H01M2/06 ,  H01M2/30

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, a fixing member, a connecting member, an electrode terminal and a reinforcing portion, wherein the cap plate has an electrode lead-out hole; the fixing member is fixed to the cap plate through the connecting member; the electrode terminal comprises 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; and the reinforcing portion is fixed to the cap plate, and extends along a width direction of the cap plate.

公开(公告)号：US20190044104A1

公开(公告)日：2019-02-07

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 ,  H01M2/30 ,  H01M2/34

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：US20170373301A1

公开(公告)日：2017-12-28

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

CPC classification number: H01M2/345 ,  H01M2/043 ,  H01M2/0473 ,  H01M2/06 ,  H01M2/1241 ,  H01M2/26 ,  H01M2/30 ,  H01M2/305 ,  H01M2200/20 ,  H01M2220/20

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.