公开(公告)号：US20210043901A1

公开(公告)日：2021-02-11

申请号：US16928523

申请日：2020-07-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quankun LI ,  Shiyao ZHANG ,  Peng WANG

IPC: H01M2/12 ,  H01M2/04 ,  H01M2/08

Abstract: A cover assembly of a secondary battery and 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 protective part at least partially covering the gas vent and having a gas permeability coefficient smaller than a gas permeability coefficient of the gas exhaust valve.

公开(公告)号：US20180145288A1

公开(公告)日：2018-05-24

申请号：US15631214

申请日：2017-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M2/04 ,  H01M2/02

CPC classification number: H01M2/0482 ,  H01M2/0212 ,  H01M2/0404 ,  H01M2/043 ,  H01M2/0456 ,  H01M2/0473 ,  H01M2/0486 ,  H01M2/345 ,  H01M10/0525 ,  H01M2200/20 ,  H01M2220/20 ,  Y02E60/122

Abstract: This application provides a top cover plate of 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 a first connecting portion integrated with the top cover plate as a whole, the first electrode unit includes the deformable plate, a conductive plate and an insulation piece, the insulation piece is provided with a second connecting portion and a conductive plate connecting portion, the deformable plate seals the deformable plate connecting hole, the conductive plate is located underneath the deformable plate, and electrically connected with the deformable plate, the insulation piece is fixed underneath the top cover plate through cooperation of the first connecting portion and the second connecting portion, the conductive plate is insulated from and fixed with the top cover plate through the conductive plate connecting portion.

公开(公告)号：US20170271644A1

公开(公告)日：2017-09-21

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 ,  H01M10/0525

CPC classification number: H01M2/26 ,  H01M2/22 ,  H01M2/24 ,  H01M2/266 ,  H01M2/28 ,  H01M10/052 ,  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：US20240322351A1

公开(公告)日：2024-09-26

申请号：US18675724

申请日：2024-05-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haibo KE ,  Quankun LI ,  Kaihuan YANG ,  Chengyou XING ,  Xiang MEI ,  Peng WANG ,  Yuyong LEI

IPC: H01M50/342

CPC classification number: H01M50/342

Abstract: A battery cell, a battery, and an electrical apparatus are provided. The battery cell includes a housing, a pressure relief mechanism and a protective member. The housing is provided with a stepped hole communicating with the interior of the housing, the stepped hole includes a first hole section and a second hole section which are arranged in a first direction, and the first hole section is located on the side of the second hole section facing away from the inside of the housing. The pressure relief mechanism and the protective member are respectively arranged in the second hole section and the first hole section, and the protective member covers at least a portion of the pressure relief mechanism.

公开(公告)号：US20240304931A1

公开(公告)日：2024-09-12

申请号：US18670341

申请日：2024-05-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Liangfan XU ,  Quankun LI ,  Peng WANG

IPC: H01M50/271 ,  H01M50/249 ,  H01M50/55

CPC classification number: H01M50/271 ,  H01M50/249 ,  H01M50/55 ,  H01M2220/20

Abstract: An end cap includes a cap body and a groove. The cap body contains a first surface. The groove is created on the cap body to form a pressure relief region at a position of the groove on the cap body. The groove is recessed from the first surface along a thickness direction of the cap body. Lateral faces of the groove include a corner face located at a corner position of the groove. The corner face is connected to the first surface by a first chamfered face.

公开(公告)号：US20240274894A1

公开(公告)日：2024-08-15

申请号：US18643600

申请日：2024-04-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei CHEN ,  Jiang LIU ,  Ying HUANG ,  Quankun LI

IPC: H01M10/42 ,  H01M10/058 ,  H01M50/103 ,  H01M50/55

CPC classification number: H01M10/4242 ,  H01M10/058 ,  H01M50/103 ,  H01M50/55

Abstract: Embodiments of the present application provide a battery cell, a battery and an electrical apparatus, which can effectively improve the performance of batteries with low process complexity. The battery cell includes: at least two electrode assemblies; a lithium-supplementing apparatus arranged between two adjacent electrode assemblies in the at least two electrode assemblies; a shell configured to accommodate the at least two electrode assemblies, the shell including a first wall, and the first wall being provided with a lithium-supplementing electrode terminal; and a connecting element configured to electrically connect the lithium-supplementing apparatus with the lithium-supplementing electrode terminal.

公开(公告)号：US20240258585A1

公开(公告)日：2024-08-01

申请号：US18635210

申请日：2024-04-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei CHEN ,  Jiang LIU ,  Ying HUANG ,  Quankun LI

IPC: H01M10/42 ,  H01M50/249 ,  H01M50/591

CPC classification number: H01M10/4235 ,  H01M50/249 ,  H01M50/591

Abstract: Embodiments of the present application provide a battery cell, a battery, and a power consumption apparatus, which could effectively improve performance of the battery without increasing the internal space of the battery. The battery cell includes: an electrode assembly including a first end face and a second end face opposite to each other, the first end face being provided with tabs; and a lithium replenishing apparatus connected with the second end face.

公开(公告)号：US20240154282A1

公开(公告)日：2024-05-09

申请号：US18411035

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ningsheng WU ,  Lulu BAI ,  Wenlin ZHOU ,  Haibo KE ,  Quankun LI ,  Peng WANG

IPC: H01M50/636 ,  H01M50/593

CPC classification number: H01M50/636 ,  H01M50/593 ,  H01M2220/20

Abstract: Embodiments of the present application provide a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device. The battery cell includes: a shell, including a first wall provided with a medium injection hole; an electrode assembly, disposed inside the shell; and an insulating member, disposed between the first wall and the electrode assembly to insulate and isolate the first wall and the electrode assembly, where a guide structure is disposed on a side, facing the first wall, of the insulating member, and the guide structure is configured to guide a medium injected from the medium injection hole to an edge of the insulating member, so that the medium enters the interior of the battery cell from the edge of the insulating member.

公开(公告)号：US20240021930A1

公开(公告)日：2024-01-18

申请号：US18353689

申请日：2023-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Quankun LI ,  Peng WANG

IPC: H01M50/15 ,  H01M50/30 ,  H01M50/588 ,  H01M50/593 ,  H01M50/14

CPC classification number: H01M50/15 ,  H01M50/30 ,  H01M50/588 ,  H01M50/593 ,  H01M50/14 ,  H01M2200/20 ,  H01M2220/20

Abstract: An end cap includes a cap body, a pressure relief boss, and an insulating member. The cap body has a pressure relief region and an outer surface. In a thickness direction of the cap body, the pressure relief boss is arranged on the outer surface in a protruding manner and surrounds the pressure relief region. The insulating member is attached to the outer surface. In the thickness direction, the pressure relief boss does not extend beyond, in a direction facing away from the outer surface, an end of the insulating member that faces away from the outer surface.

公开(公告)号：US20230395931A1

公开(公告)日：2023-12-07

申请号：US18228372

申请日：2023-07-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haibo KE ,  Quankun LI ,  Peng WANG ,  Chengyou XING ,  Ningsheng WU ,  Kaihuan YANG ,  Xiang MEI ,  Lili WU

IPC: H01M50/342 ,  H01M50/15 ,  H01M50/159 ,  H01M50/186 ,  H01M50/588 ,  H01M50/59

CPC classification number: H01M50/3425 ,  H01M50/15 ,  H01M50/159 ,  H01M50/186 ,  H01M50/588 ,  H01M50/59 ,  H01M2200/20

Abstract: An end cover assembly includes an end cover and a pressure relief member. The pressure relief member is provided in the end cover, and the pressure relief member is provided with an indentation groove. The pressure relief member is configured to crack along the indentation groove to release internal pressure of a battery cell when internal pressure or temperature of the battery cell reaches a threshold. Hardness of the pressure relief member is lower than hardness of the end cover.