公开(公告)号：US20220320644A1

公开(公告)日：2022-10-06

申请号：US17847347

申请日：2022-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongsheng SUN ,  Kun FANG ,  Zhisheng CHAI ,  Qingkui CHI ,  Haizu JIN

IPC: H01M50/147 ,  H01M50/317 ,  H01M50/102 ,  H01M50/533 ,  H01M50/543

Abstract: Disclosed is a battery cell, a battery, a power consumption apparatus and a method and an apparatus for producing a battery cell. The battery cell includes: a housing, with a first opening; an electrode assembly, arranged in the housing; an end cover assembly, including an end cover, a pressure relief mechanism and a first insulating member, the end cover covers the first opening, the pressure relief mechanism is arranged on the end cover, the pressure relief mechanism is configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated, the first insulating member is located on a side of the end cover close to the electrode assembly to isolate the electrode assembly and the end cover, and the first insulating member is configured that a projection on the end cover along a thickness direction of the end cover covers the pressure relief mechanism.

公开(公告)号：US20240222782A1

公开(公告)日：2024-07-04

申请号：US18604484

申请日：2024-03-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO ,  Haizu JIN

IPC: H01M50/342 ,  F16K17/16

CPC classification number: H01M50/3425 ,  F16K17/16

Abstract: A pressure relief apparatus used for a battery cell includes a pressure relief body and two pressure relief grooves. The pressure relief body has a first surface and a second surface disposed opposite in its thickness direction. The two pressure relief grooves are disposed opposite in the thickness direction and disposed on the first surface and the second surface separately, a weak portion is formed between the two pressure relief grooves, and the weak portion is configured to rupture when a pressure or temperature inside the battery cell reaches a threshold, so as to release the pressure inside the battery cell.

公开(公告)号：US20230361380A1

公开(公告)日：2023-11-09

申请号：US18223064

申请日：2023-07-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO

IPC: H01M10/653 ,  H01M50/102 ,  H01M50/533 ,  H01M10/0587

CPC classification number: H01M10/653 ,  H01M50/102 ,  H01M50/533 ,  H01M10/0587 ,  H01M2220/20

Abstract: This application provides a battery cell. The battery cell may include: a housing including a wall portion; an electrode terminal insulatively mounted on the wall portion; an electrode assembly disposed in the housing, where the electrode assembly may include a body and a first tab, and the first tab may be formed at an end of the body closer to the wall portion; a current collector disposed between the electrode assembly and the wall portion, where the current collector may be configured to connect the first tab and the electrode terminal; and a heat shrink film, where at least a part of the heat shrink film may cover a side of the current collector facing toward the wall portion to insulate the current collector from the wall portion.

公开(公告)号：US20230207992A1

公开(公告)日：2023-06-29

申请号：US18112501

申请日：2023-02-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO

IPC: H01M50/578 ,  H01M50/107 ,  H01M50/342 ,  H01M50/536 ,  H01M50/538 ,  H01M50/169 ,  H01M50/159 ,  H01M10/0587

CPC classification number: H01M50/578 ,  H01M50/107 ,  H01M50/3425 ,  H01M50/536 ,  H01M50/538 ,  H01M50/169 ,  H01M50/159 ,  H01M10/0587

Abstract: A battery cell may include: a housing having an opening; an electrode assembly, accommodated in the housing, where a first tab may be disposed on the electrode assembly at an end oriented toward the opening; and an end cap, configured to fit and cover the opening, where the end cap may include a first connector and a rupturable structure. The rupturable structure may be disposed along an edge of the first connector. The end cap may rupture along the rupturable structure when an internal pressure of the battery cell reaches a threshold, so as to release the internal pressure. The battery cell may further include a fixing structure, and the fixing structure may fixedly connect the first connector to the first tab, so as to restrict movement of the first connector.

公开(公告)号：US20230198108A1

公开(公告)日：2023-06-22

申请号：US18110381

申请日：2023-02-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO

IPC: H01M50/536 ,  H01M50/533 ,  H01M50/152 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/559

CPC classification number: H01M50/536 ,  H01M50/533 ,  H01M50/152 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/559 ,  H01M2220/20 ,  H01M2220/30

Abstract: A battery cell according to an embodiment of this application may include: a housing, on which an opening is made; an electrode assembly, accommodated in the housing, where the electrode assembly includes a first tab at an end oriented toward the opening; an end cap, configured to fit and cover the opening to seal the electrode assembly in the housing; and a current collecting structure, disposed between the end cap and the first tab, where the current collecting structure may be configured to be welded to the end cap and the first tab separately to implement electrical connection between the end cap and the first tab.

公开(公告)号：US20230122619A1

公开(公告)日：2023-04-20

申请号：US17838774

申请日：2022-06-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO ,  Ying LI

IPC: H01M50/572 ,  H01M50/107 ,  H01M50/531

Abstract: Embodiments of the present application provide a battery cell, a battery, a power consumption device, and a manufacturing method and device of a battery cell, which belong to the field of battery technology. A battery cell includes a housing, an electrode assembly, an end cover, and a current collecting member. The electrode assembly has a tab. The housing with an opening is configured to accommodate the electrode assembly. The end cover is configured to cover the opening and connected to the housing. The current collecting member is located in the housing, and is configured to connect the tab and the housing. An inner side surface of the housing is protruded with a first restraint member, and the current collecting member abuts against a side of the first restraint member facing the electrode assembly, which can reduce the risk of failure of electrical connection between a battery assembly and a housing.

公开(公告)号：US20230030940A1

公开(公告)日：2023-02-02

申请号：US17897119

申请日：2022-08-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Quankun LI ,  Kun FANG ,  Wenqi ZHU

IPC: H01M50/152 ,  H01M50/533 ,  H01M50/593

Abstract: A battery cell includes an electrode assembly, a housing, and an end cap. The electrode assembly includes a tab. The housing has an opening and includes a limit part, and is configured to accommodate the electrode assembly. The end cap includes a cap body and a convex part. The cap body is configured to cover the opening. In a thickness direction of the end cap, the cap body is located at one side of the limit part away from the electrode assembly. The limit part is configured to limit the cap body from moving relatively to the housing towards the electrode assembly. The convex part protrudes from an inner surface of the cap body towards the electrode assembly. The convex part is configured to go beyond the limit part away from the cap body, so that the convex part is pressed against the tab.