公开(公告)号：US20210359381A1

公开(公告)日：2021-11-18

申请号：US17388039

申请日：2021-07-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuyong LEI ,  Chengyou XING ,  Peng WANG

IPC: H01M50/54 ,  H01M50/176 ,  H01M50/147 ,  H01M50/528 ,  H01M50/543

Abstract: The present application provides a secondary battery, which includes a first electrode assembly, a second electrode assembly, a case, and a top cap assembly. The top cap assembly includes a top cap plate and a first electrode terminal, the top cap plate is connected to the case, and the first electrode terminal is arranged on the top cap plate. The first electrode assembly includes a first body and first tabs extending from the first body, and the first tabs are multiple and stacked. The second electrode assembly includes a second body and second tabs extending from the second body, and the second tabs are multiple and stacked. An end of each of the second tabs that is away from the second body is a second end portion. Each of the first tabs includes a first connecting portion extending beyond the second end portion.

公开(公告)号：US20240372230A1

公开(公告)日：2024-11-07

申请号：US18776293

申请日：2024-07-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Peng WANG ,  Chuan LI

IPC: H01M50/536 ,  H01M10/0525 ,  H01M50/533 ,  H01M50/54

Abstract: The application provides an electrode assembly, a battery cell, a battery and an electric device. The electrode assembly includes a main body and at least one electrode tab. The electrode tab includes a plurality of sub electrode tabs extending from an end of the main body and arranged in stacked layers. The plurality of sub electrode tabs are connected by welding and forming a welding portion. The welding portion includes a thinned region. A thickness of the thinned region is less than a maximum thickness of the welding portion. The production efficiency and yield of batteries can be enhanced.

公开(公告)号：US20240297376A1

公开(公告)日：2024-09-05

申请号：US18662821

申请日：2024-05-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chuan LI ,  Zhijun GUO ,  Yuyong LEI ,  Peng WANG ,  Mengkai CAO

IPC: H01M50/103 ,  B60R16/033 ,  H01M50/107 ,  H01M50/133 ,  H01M50/15 ,  H01M50/152 ,  H01M50/169 ,  H01M50/209 ,  H01M50/249 ,  H01M50/289 ,  H01M50/548

CPC classification number: H01M50/103 ,  H01M50/107 ,  H01M50/133 ,  H01M50/15 ,  H01M50/152 ,  H01M50/169 ,  H01M50/209 ,  H01M50/249 ,  H01M50/289 ,  H01M50/548 ,  B60R16/033 ,  H01M2220/20

Abstract: A battery cell includes a housing and a cover. The housing is provided with an opening and a chamber. The housing includes an opening part and a body part, where the opening part surrounds the opening and the body part surrounds the chamber. The cover is connected to the opening part and closes the opening. At least a partial region of the body part is recessed relative to the opening part to form a recessed zone, a thickness of the recessed zone being less than that of the opening part.

公开(公告)号：US20240243450A1

公开(公告)日：2024-07-18

申请号：US18619693

申请日：2024-03-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chuan LI ,  Zhijun GUO ,  Yuyong LEI ,  Yingjun SONG

IPC: H01M50/586 ,  H01M50/583

CPC classification number: H01M50/586 ,  H01M50/583

Abstract: This application relates to an adapter assembly, a battery cell, a battery, and an electrical device. The adapter assembly includes: a current collecting component, including a terminal connecting portion, a fuse portion, and a tab connecting portion, where the fuse portion is connected between the terminal connecting portion and the tab connecting portion; and an insulation protection component, wrapping the fuse portion. The insulation protection component is configured to keep a fixed relative position between the terminal connecting portion and the tab connecting portion when the fuse portion is blown. A first mating portion is formed on at least one surface of the fuse portion in a thickness direction. At least a part of one of the first mating portion or the insulation protection component protrudes along the thickness direction and is embedded inside the other of the first mating portion or the insulation protection component.

公开(公告)号：US20240250347A1

公开(公告)日：2024-07-25

申请号：US18594020

申请日：2024-03-04

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Chuan LI ,  Yingjun SONG

IPC: H01M50/103 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6554 ,  H01M50/15 ,  H01M50/342

CPC classification number: H01M50/103 ,  H01M10/613 ,  H01M10/6554 ,  H01M50/15 ,  H01M50/3425 ,  H01M10/625

Abstract: The present disclosure relates to a battery cell, a battery and an electric-powered device, and the battery cell includes: an electrode assembly; a shell adapted for receiving the electrode assembly; and a cap assembly adapted for closing an opening of the shell, wherein the shell includes a first wall and two second walls opposite each other, the first wall is adapted to connect the two second walls, the first wall has a wall thickness greater than that of the second wall, the first wall is provided with a pressure relief mechanism, and the pressure relief mechanism is adapted to be activated so as to release the pressure when a gas pressure inside the shell reaches a threshold.

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：US20230369713A1

公开(公告)日：2023-11-16

申请号：US18351954

申请日：2023-07-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Peng WANG ,  Haizu JIN

IPC: H01M50/342

CPC classification number: H01M50/3425 ,  H01M2200/20 ,  H01M2220/20

Abstract: A battery cell includes a pressure relief body, a pressure relief mechanism, and a protective member. The pressure relief mechanism is arranged on the pressure relief body. At least a part of the protective member is located on a side of the pressure relief mechanism away from an interior of the battery cell, and covers the pressure relief mechanism. The pressure relief mechanism includes an opening portion configured to, in response to an internal pressure or temperature of the battery cell reaching a threshold value, be opened and destruct the protective member to release the pressure when.

公开(公告)号：US20230031476A1

公开(公告)日：2023-02-02

申请号：US17894931

申请日：2022-08-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI

IPC: H01M50/367 ,  H01M50/147

Abstract: The present application provides a battery cell and a manufacturing method and manufacturing system, a battery, and a power consumption apparatus. The battery cell includes an electrode assembly, a housing, a pressure relief mechanism and a cover assembly. The housing is provided with an accommodating space for accommodating the electrode assembly, and the housing includes a first side plate located on a side in a first direction; the pressure relief mechanism is disposed on the first side plate; and the cover assembly is configured for sealing the housing, where an inner surface of the first side plate of the housing is provided with a first flow channel extending along the inner surface, and the first flow channel is configured to guide a gas in the accommodating space to the pressure relief mechanism so that the pressure relief mechanism is actuated when a pressure reaches a threshold, and relieve the pressure.

公开(公告)号：US20240322404A1

公开(公告)日：2024-09-26

申请号：US18671974

申请日：2024-05-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuyong LEI ,  Zhijun GUO ,  Peng WANG ,  Rui YANG

IPC: H01M50/586 ,  H01M50/103 ,  H01M50/54

CPC classification number: H01M50/586 ,  H01M50/103 ,  H01M50/54

Abstract: A battery cell includes a housing, an electrode assembly, and an isolation member. The housing is provided with an electrode lead-out member. The electrode assembly is accommodated in the housing, where the electrode assembly includes a body portion and a tab led out of an end face of the body portion. At least a portion of the isolation member is disposed between the electrode lead-out member and the end face of the body portion, where the isolation member is provided with a channel, and the tab passes through the channel and is electrically connected to the electrode lead-out member.

公开(公告)号：US20240322309A1

公开(公告)日：2024-09-26

申请号：US18732279

申请日：2024-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wei CHEN ,  Chuan LI ,  Zhijun GUO ,  Yuyong LEI ,  Donglai ZHENG

IPC: H01M50/133 ,  H01M50/169

CPC classification number: H01M50/133 ,  H01M50/169

Abstract: A housing of a battery cell has an opening at an end in a first direction and includes a first side plate, a second side plate and a first connection plate. The first side plate and the second side plate are arranged in a circumferential direction of the opening, the first connection plate is connected between the first side plate and the second side plate, and at least a part of the first connection plate is arcuate. The first side plate includes a first plate portion, a second plate portion and a third plate portion, the second plate portion is connected between the first plate portion and the first connection plate, and the third plate portion is located at a side of the first plate portion close to the opening.