Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology Limited

Wenlin Zhou

Quankun Li

Peng Wang

Xinxiang Chen

Haizu Jin

Xingdi Chen

Ting Zheng

Liangfan Xu

Yulian Zheng

Xing Li

Lei Wang

Lulu Bai

Ningsheng Wu

Wenwei Chen

Xiangyan Bu

Wenzhong Liu

Shengwang Chen

Kaihuan Yang

A pressure relief apparatus includes a pressure relief portion provided with a first surface and a second surface arranged opposite to each other in a thickness direction of the pressure relief portion, and at least one stage of depressed groove and an indented groove. The at least one stage of depressed groove and the indented groove are formed in the pressure relief portion in sequence in a direction from the first surface to the second surface. A groove bottom wall of the stage of depressed groove farthest away from the first surface among the at least one stage of depressed groove is provided with an opening area. The indented groove is formed along an edge of the opening area. The opening area is configured to be openable with the stage of indented groove farthest away from the first surface as a boundary.

Pressure relief apparatus, battery cell, battery, and power consuming device

A battery cell includes a shell, an electrode assembly, and a first insulating member. The shell has an opening and a bottom wall opposite to the opening. The electrode assembly is accommodated in the shell. The first insulating member is used for separating the electrode assembly and the bottom wall. The first insulating member is provided with a first through hole, and projections of the electrode assembly and the first through hole on the bottom wall partially overlap or do not overlap in a thickness direction of the bottom wall.

Battery cell, battery, and electrical device

An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a manufacturing equipment and method for a battery cell. The battery cell includes a housing, an electrode assembly, an end cover to cover the housing, and an electrode terminal installed on the end cover and electrically connected with the electrode assembly. The end cover includes a first body and a first convex portion, and the first convex portion extends from the first inner surface of the first body along a direction facing the electrode assembly, a position on the first body corresponding to the first convex portion is formed with a first concave portion recessed from the first outer surface opposite to the first inner surface along the direction facing the electrode assembly, the first concave portion is configured to accommodate the electrode terminal. The battery cell can effectively increase the battery capacity.

Battery cell, battery, power consumption device and manufacturing device and method for battery cell

A battery cell includes a shell, an electrode assembly, and an insulator; the shell includes a bottom wall and a side wall disposed at a periphery of the bottom wall; the electrode assembly is accommodated in the shell; the insulator includes a first insulating portion and a second insulating portion that are connected, the first insulating portion is used for separating the electrode assembly from the bottom wall, the first insulating portion is provided with a through hole, and the second insulating portion is used for separating the electrode assembly from the side wall; and the insulator further includes a folding portion, which is disposed on the first insulating portion in a foldable manner, and is configured to be stacked with the first insulating portion to cover the through hole.

Battery cell, battery, power consumption device, and battery cell manufacturing device and method with folding insulator

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.

Battery cell, battery, and electrical consuming device

Described is a battery cell, which includes a casing having a first opening; an electrode assembly received in the casing, the electrode assembly having a first tab, a second tab and a third tab, the first tab having an opposite polarity to the second tab, and the third tab having the same polarity as the first tab or the second tab; an end cap for closing the first opening; an insulating member disposed between the end cap and the electrode assembly, wherein the third tab is configured to be connected with the insulating member. It is possible to improve the heat dissipation efficiency of the battery cell by additionally providing a heat dissipation path of the electrode assembly—the third tab—the insulating member—the end cap, thereby improving the overcurrent capacity and the safety performance of the battery cell.

Battery cell, battery, electrical device and device and method for preparing battery cell

A battery cell, a battery, an electrical device, and a method and device for manufacturing the battery cell. In some embodiments, the battery cell comprises a battery core, a shell, an end cover, and a first insulating component. The battery core comprises a main body part and electrode tabs protruding from the main body part. The shell has a first opening and is configured to accommodate the battery core. The end cover is configured to cover the first opening. The first insulating component comprises an insulating main body and an insulating part, wherein the insulating main body is located on a side, facing the electrode tabs, of the end cover, and the insulating main body is configured to isolate the battery core from the end cover.

Battery cell, battery, electrical device, and method and device for manufacturing battery cell

A battery cell includes electrode assemblies arranged in a first direction, where an end part of each electrode assembly along a second direction perpendicular to the first direction is provided with a tab; and a connection member configured to connect tabs of the electrode assemblies and an electrode terminal of the battery cell. The connection member includes a main body portion and a pin, the main body portion extends along the first direction, and includes a first surface and a second surface perpendicular to the second direction, the main body portion is provided with a plurality of through grooves passing through the first surface and the second surface, and the plurality of through grooves are respectively configured to accommodate the tabs of the plurality of electrode assemblies.

Battery cell, battery, power consumption device, and method and device for manufacturing battery cell

The embodiments of this application provide a battery cell, a battery, an electrical device, and a battery cell manufacturing method and device, which pertains to the technical field of batteries. The battery cell includes an electrode assembly, a housing, an end cover assembly, and a support piece. The electrode assembly includes a main body and tabs. The housing has an opening and is used to accommodate the electrode assembly. The end cover assembly is used to cover the opening. The support piece is located between the main body and the end cover assembly, the tabs are bent around the support piece, and the support piece is configured to prevent the main body from moving along a direction facing the end cover assembly.

Growing community of inventors

Ningde, China

Wenlin Zhou