公开(公告)号：US20240145889A1

公开(公告)日：2024-05-02

申请号：US18407461

申请日：2024-01-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xinxiang Chen ,  Xiaoping Zhang ,  Yulian Zheng ,  Yanyu Liu ,  Denghua Lin

IPC: H01M50/59 ,  H01M50/103 ,  H01M50/15 ,  H01M50/169 ,  H01M50/586

CPC classification number: H01M50/59 ,  H01M50/103 ,  H01M50/15 ,  H01M50/169 ,  H01M50/586 ,  H01M2220/20

Abstract: Provided are an insulation patch, a battery cell, a battery, and a device. An electrode assembly is coated with the insulation patch, and a side edge of the insulation patch has a hot-melt region and a non-hot-melt region. The hot-melt region is configured to hot melt with a lower plastic, and the non-hot-melt region is lower than the hot-melt region. After the electrode assembly coated with the insulation patch is mounted to a shell, and the hot-melt region of the insulation patch is hot melted to the lower plastic of a top cover assembly, when a top cover member and the shell are welded together by using a laser, the non-hot-melt region of the insulation patch is lower than the hot-melt region, preventing the non-hot-melt region of the insulation patch from interfering with a welding position between the top cover member and the shell.

公开(公告)号：US20230198054A1

公开(公告)日：2023-06-22

申请号：US18167083

申请日：2023-02-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei Chen ,  Wenlin Zhou ,  Xiangyan Bu ,  Xinxiang Chen ,  Peng Wang ,  Haizu Jin

IPC: H01M50/103 ,  H01M50/15 ,  H01M50/176 ,  H01M50/531 ,  H01M50/55

CPC classification number: H01M50/103 ,  H01M50/15 ,  H01M50/176 ,  H01M50/531 ,  H01M50/55 ,  H01M2220/20

Abstract: In some embodiments, the battery cell includes a shell, including an opening; an electrode unit, accommodated in the shell, the electrode unit including a main body portion and a tab portion protruding from the main body portion; a cap assembly, for connecting with the shell, and covering and closing the opening; and a first insulating member, accommodated in the shell and adapted to isolate at least part of the main body portion from the shell, the first insulating member including a first insulating plate, and the first insulating plate being disposed on a side of the main body portion facing the cap assembly and being attached to the main body portion. The first insulating member can insulate at least part of the main body portion from the shell.

公开(公告)号：US11894568B2

公开(公告)日：2024-02-06

申请号：US17462741

申请日：2021-08-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiang Li ,  Yulian Zheng ,  Peng Wang ,  Shoujun Huang ,  Xinxiang Chen

IPC: H01M50/188 ,  H01M50/147 ,  H01M50/209 ,  H01M50/543 ,  B60K1/04 ,  H01M50/562 ,  H01M50/529 ,  H01M50/159 ,  H01M50/157 ,  H01M50/197

CPC classification number: H01M50/188 ,  B60K1/04 ,  H01M50/147 ,  H01M50/209 ,  H01M50/543 ,  B60K2001/0438 ,  H01M50/157 ,  H01M50/159 ,  H01M50/197 ,  H01M50/529 ,  H01M50/562 ,  H01M2220/20 ,  Y02E60/10

Abstract: This application relates to a secondary battery, a battery column, and an apparatus. The secondary battery includes a top cover plate, having an outer surface and an inner surface disposed opposite each other in a thickness direction of the top cover plate and an electrode lead-out hole extending along the thickness direction; a pole, disposed in the electrode lead-out hole, where the pole includes a first metal layer and a second metal layer, and the first metal layer and the second metal layer are stacked along a direction from the inner surface to the outer surface; an insulation member, disposed between the top cover plate and the pole; and a first bonding layer, disposed between the insulation member and the first metal layer, where the insulation member is hermetically connected to the first metal layer through the first bonding layer.

公开(公告)号：US20230155233A1

公开(公告)日：2023-05-18

申请号：US18155037

申请日：2023-01-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Yulian Zheng

IPC: H01M50/24

CPC classification number: H01M50/24

Abstract: Examples of the present application relate to a battery cell, a manufacturing method and a manufacturing system thereof, a battery, and a powered device. The battery cell includes: a shell, where the shell has a wall portion; an electrode assembly accommodated in the shell; and a pressure relief mechanism. The pressure relief mechanism is provided on the wall portion, the pressure relief mechanism includes a weak portion, a body portion, and a connecting portion. The weak portion is configured to be damaged when pressure inside the shell reaches a threshold so as to relieve the pressure. The body portion is located in a region defined by the weak portion. The connecting portion is located on an outer side of the weak portion and configured to connect the wall portion.

公开(公告)号：US20220238945A1

公开(公告)日：2022-07-28

申请号：US17721384

申请日：2022-04-15

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H01M50/15 ,  H01M50/186

Abstract: The present application provides an end cover assembly, a battery cell, a battery pack, apparatus and a liquid injection method. The end cover assembly includes an end cover plate, including a through hole for injecting electrolyte and a fixing portion arranged around the through hole; a nail body, including an accommodating portion for receiving the fixing portion. The accommodating portion is in a shape of annular and includes two inner walls arranged to be spaced apart from each other in a radial direction of the accommodating portion, and an inner wall and an outer wall of the fixing portion are respectively pressed against and engaged with the two inner walls of the accommodating portion to seal the through hole.

公开(公告)号：US11183722B2

公开(公告)日：2021-11-23

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: H01M50/147 ,  H01M50/183 ,  H01M50/342 ,  H01M50/531 ,  H01M10/0525 ,  H01M50/543 ,  H01M50/578

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：US11757157B2

公开(公告)日：2023-09-12

申请号：US17478888

申请日：2021-09-18

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Huasheng Su ,  Shoujun Huang ,  Xinxiang Chen ,  Yulian Zheng ,  Peng Wang

IPC: H01M50/528 ,  H01M50/591 ,  H01M50/147 ,  H01M50/562 ,  H01M50/176 ,  H01M50/553 ,  H01M50/55

CPC classification number: H01M50/528 ,  H01M50/147 ,  H01M50/562 ,  H01M50/591 ,  H01M50/176 ,  H01M50/55 ,  H01M50/553

Abstract: The present disclosure relates to a cap assembly and a secondary battery. The cap assembly includes a cap plate, an electrode terminal, a fixing member and a connection member. The cap plate includes an electrode lead-out hole, the electrode terminal includes a terminal board, the terminal board is located at a side of the cap plate and covers the electrode lead-out hole, the fixing member at least partially surrounds the terminal board to fix the terminal board to the fixing member, the connection member is separated from the electrode terminal by the fixing member, and the connection member is connected with the cap plate. The connection member includes a main body, the main body is provided with a first groove opened downwardly along a top of the main body, and a part of the fixing member is located in the first groove.

公开(公告)号：US11114716B1

公开(公告)日：2021-09-07

申请号：US17136786

申请日：2020-12-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Peng Wang ,  Yuanbao Chen ,  Zhijun Guo ,  Yulian Zheng ,  Chengdu Liang ,  Wei Li

IPC: H01M50/148 ,  H01M50/183 ,  H01M10/058 ,  H01M50/636 ,  H01M10/0525

Abstract: A secondary battery, a battery pack and a device using the battery are provided, wherein the end cover assembly includes: an end cover with a through hole for injection of electrolyte and an accommodating part, the accommodating part is arranged on a side far away from a shell of the end cover and is arranged along a circumferential direction of the through hole; a sealing element; and a cover body for covering at least part of the sealing element, the cover body is rotatable and includes a limiting part; when the cover body rotates to a first position, the limiting part is located inside the accommodating part to limit separation of the cover body from the end cover; when the cover body rotates to a second position, the limiting part and the accommodating part are misplaced to realize separation of the cover body from the end cover.

公开(公告)号：US20240413508A1

公开(公告)日：2024-12-12

申请号：US18810537

申请日：2024-08-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Long Chen ,  Denghua Lin ,  Shoujun Huang ,  Xinxiang Chen ,  Yulian Zheng ,  Peng Wang ,  Haizu Jin

IPC: H01M50/627 ,  H01M50/103 ,  H01M50/15 ,  H01M50/249 ,  H01M50/578 ,  H01M50/593 ,  H01M50/682

Abstract: The present application provides a battery cell, a battery, an electrical device, and a method and device for manufacturing a battery cell. The battery cell comprises: a housing, a first wall of the housing being provided with a liquid injection hole; a first electrode assembly and a second electrode assembly; an insulating structure arranged between the two electrode assemblies and comprising a second wall and a third wall; a first surface of the insulating structure facing the first wall is provided with a third through hole, the third through hole being used for guiding into the insulating structure an electrolyte injected through the liquid injection hole, so that the electrolyte in the insulating structure flows through the first through hole towards the first electrode assembly and flows through the second through hole towards the second electrode assembly.

公开(公告)号：US11710871B2

公开(公告)日：2023-07-25

申请号：US17585110

申请日：2022-01-26

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H01M50/147 ,  H01M10/04

CPC classification number: H01M50/147 ,  H01M10/0431 ,  Y02P70/50

Abstract: An end cover assembly, a battery cell and an electrolyte injection method therefor, a battery, and a power consumption device are provided. The end cover assembly may include an end cover provided with a through hole for injecting an electrolyte and an accommodating portion; a seal configured to seal the through hole; and a cover body covering at least part of the seal, the cover body including a limiting portion, the limiting portion being located within the accommodating portion to restrict the cover body from separating from the end cover, and the cover body being movable together with the seal by movement of the limiting portion relative to the accommodating portion, wherein when the cover body moves to a first position, the seal covers the through hole, and when the cover body moves to a second position, the seal avoids the through hole.