Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology Limited

Huasheng Su

Chengyou Xing

Peng Wang

Quankun Li

Shoujun Huang

Yulian Zheng

Wenlong Kang

Xinxiang Chen

Haizu Jin

Kai Wu

Yuqun Zeng

Wenzhong Liu

Jing Zhang

Chengdu Liang

Yuanbao Chen

Xiang Li

Baisong Chen

Guowei Li

Lei Chen

Xiaoping Zhang

Kun Fang

Qichang Cai

Yichen Wu

Yanyun Qin

Wenqi Zhu

The present application provides a battery cell, a battery, an electric apparatus, a manufacturing method and apparatus of a battery cell. Where the battery cell includes an electrode assembly, a pressure relief mechanism, and an end cover. A concave part on the end cover is recessed from one side, away from the electrode assembly, of the end cover, and the concave part is configured to accommodate at least a part of the pressure relief mechanism. The pressure relief mechanism covers the first welding part in a thickness direction of the end cover, and the dimension of the pressure relief mechanism in the direction perpendicular to the thickness direction of the end cover would not be limited by the first welding part, thus the dimensions of the concave part and the pressure relief mechanism may be appropriately increased to improve the pressure relief capacity of the pressure relief mechanism.

Battery cell, battery, electric apparatus, manufacturing method of battery cell, and manufacturing apparatus of battery cell

Provided are an end cover assembly, a battery, an electric device, a battery cell, and a manufacturing method thereof, pertaining to the technical field of batteries. The end cover assembly includes an end cover, a first electrode terminal, a second electrode terminal, a connecting member, and a pressure relief mechanism. The first electrode terminal is installed on the end cover; and the second electrode terminal is installed on the end cover. The connecting member is configured to be connected to the first electrode terminal and the second electrode terminal, where the connecting member is on a side of the end cover farther away from inside of the battery cell in a first direction. The pressure relief mechanism is disposed on the end cover, the pressure relief mechanism is at least partially located between the first electrode terminal and the second electrode terminal.

End cover assembly, battery, electric device, battery cell, and manufacturing method thereof

Embodiments of the present disclosure provide a battery cell, a battery, a power consumption device, and a device and a method for manufacturing a battery cell. The battery cell may comprise an electrode assembly, a housing, an end cover, and a first insulation structure. The electrode assembly may comprise a first tab. The housing may accommodate the electrode assembly, the housing may have an opening, and a first limiting structure may be formed on an inner circumferential wall of the housing. The end cover may cover the opening, and in a thickness direction of the end cover, the first limiting structure may limit movement of the end cover in a direction towards the electrode assembly. The first insulation structure may be at least partially provided between the first tab and the first limiting structure, so as to insulate and isolate the first tab from the first limiting structure.

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

The present disclosure relates to a top cover assembly of a secondary battery and a secondary battery, wherein the top cover assembly includes a top cover plate, provided with a through hole; an electrode terminal, covering the through hole; an insulating plate, wherein at least part of the insulating plate is arranged on a side of the top cover plate away from the electrode terminal; a seal, wherein at least part of the seal is arranged between the top cover plate and the electrode terminal; and an insulator, wherein at least part of the insulator is arranged between the top cover plate and the insulating plate; wherein the insulator and the seal at least jointly enclose a side wall of the through hole and an area, close to the through hole, on an upper surface of the top cover plate.

Top cover assembly of secondary battery and secondary battery

Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In some embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion, a tab, and an isolation portion. The tab extends from an end of the body portion to the opening. The isolation portion is disposed on a periphery of the tab. The end cover assembly is configured to cover the opening. The end cover assembly includes an end cover and a first insulator. The end cover is configured to cover the opening and is connected to the housing. The first insulator is disposed on a side of the end cover proximate to an inside of the housing. The first insulator has a concave portion.

Battery cell, battery, electric apparatus, and manufacturing method and system of battery cell

A cylindrical battery cell, a battery, an electricity consuming device, a manufacturing method and a manufacturing system are provided. The cylindrical battery cell includes a shell, including an opening; and an electrode assembly, disposed in the shell, the electrode assembly including a separator and a tab, and along an axial direction of the electrode assembly, the tab being located at one end of the electrode assembly and extending toward the opening, the tab including a first portion and a second portion, the second portion surrounding a periphery of the first portion, and the separator wrapping the second portion to isolate the second portion from the shell, wherein along the axial direction, the first portion extends beyond the second portion and the separator, and the second portion does not extend beyond the separator. The battery cell of the present application solves a problem of short circuit in the battery cell.

Cylindrical battery cell, battery, electricity consuming device, manufacturing method and manufacturing system

A battery cell may comprise: an electrode assembly, a housing and an end cap. The electrode assembly may have a first tab. The housing may have an opening for accommodating the electrode assembly. The end cap may be configured to connect with the housing and cover the opening. The end cap may have an abutting surface and a welding groove, the abutting surface may be configured to abut against the first tab, and the welding groove may be recessed from one side of the end cap away from the electrode assembly towards the abutting surface. The end cap may form a connector between the abutting surface and the bottom surface of the welding groove, and the connector is configured for being welded with the first tab. The end cap is provided with a reinforcing structure, and the reinforcing structure is protruded from the bottom surface.

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

The present application relates to a secondary battery, a battery module and a device. The secondary battery includes a cap plate assembly; an electrode assembly, including a main body and a tab extending from the main body; an electrode terminal, arranged at the cap plate assembly to electrically connect with the tab; a first pressing-against member, arranged between the cap plate assembly and the main body, herein an accommodating space is formed between the first pressing-against member and the electrode terminal; a second pressing-against member, arranged between the cap plate assembly and the main body; herein a part of the tab, that passes between the first pressing-against member and the second pressing-against member and extends into the accommodating space, is connected to the electrode terminal, and the first pressing-against member and the second pressing-against member press against two opposite surfaces of the tab respectively.

Secondary battery, battery module and device

Embodiments of the application provide an end cover assembly, a battery cell, a battery and a method and device for manufacturing the battery cell. The end cover assembly includes an end cover, an insulating part, a blocking part and a separating part. The end cover is provided with an injection hole. The insulating part is configured to be arranged on a side of the end cover in the thickness direction and is provided with a through hole. The blocking part is provided with a liquid outlet and is configured to change a flow direction of a fluid medium passing through the injection hole and the through hole, and the fluid medium after changing the flow direction entering inside of the battery cell through the liquid outlet. The separating part is configured to separate a tab from the end cover.

End cover assembly, battery cell, battery and method and device for manufacturing battery cell

The present application relates to a top cover assembly and a secondary battery. The top cover assembly includes: a top cover plate including a lead-out hole and an inside surface forming the lead-out hole; an electrode terminal including a cylindrical portion penetrating the lead-out hole and an annular flange, the annular flange extending beyond the inside surface along the lead-out hole; a sealing ring including a barrel portion and a ring portion, surrounding the cylindrical portion by the barrel portion. The ring portion includes a first ring body and a second ring body distributed in the radial direction; an insulating member including a connecting portion and an extension portion, and the connecting portion seals the second ring body; a portion of the insulating member beyond the second ring body forms the extension portion, and in the radial direction, the extension portion extends beyond the annular flange.

Top cover assembly and secondary battery

An embodiment of the present application provides a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device, which belong to the field of battery technologies. The battery cell includes an adapting member, the adapting member includes a first connection portion for connecting an electrode terminal and a second connection portion for connecting an electrode assembly, the first connection portion and the second connection portion are dividedly set and connected to each other, and the first connection portion is in a multilayer structure and includes multiple layers of conductive sheets provided in a stacking manner, the second connection portion is in a single-layer structure, and a minimum thickness of the first connection portion is greater than a maximum thickness of the second connection portion.

Battery cell, battery, power consumption device and battery cell manufaturing method and device

A battery cell may include an electrode assembly, a housing and an end cap. The electrode assembly may have a first tab. The housing may have an opening for receiving the electrode assembly. The end cap may include a cap body and a first convex part. The end cap may be provided with a liquid injection hole, and the liquid injection hole may be located inside of the outer peripheral surface of the first convex part. The first convex part may be provided with a flow guiding channel, the flow guiding channel may communicate with the liquid injection hole and penetrate the outer peripheral surface, and the flow guiding channel may be used for allowing at least part of the electrolyte solution to flow to outside of the outer peripheral surface.

Embodiments of this application provide a battery column, a battery module, and an apparatus. The battery column includes a housing, and first battery cells and second battery cells that are alternately distributed side by side along a first direction in the housing, where the first battery cell includes a first metal case and a first insulating film, the first metal case has two first side surfaces disposed opposite each other along the first direction, and the first insulating film covers at least the two first side surfaces; and the second battery cell includes a second metal case, which is exposed in the housing.

Battery column, battery module, and apparatus

Embodiments provide a battery cell, a battery, an electric apparatus, and a manufacturing method and system of battery cell. In those embodiments, the battery cell includes a housing, an electrode assembly, and an end cover assembly. The housing provides an opening. The electrode assembly is disposed in the housing. The electrode assembly includes a body portion and a tab. The tab extends from an end of the body portion to the opening. The electrode assembly includes a first electrode plate, a second electrode plate, and a separator. The first electrode plate and the second electrode plate each have a coated area and an uncoated area. A part of the electrode assembly corresponding to the coated areas of the first electrode plate and the second electrode plate is the body portion. The uncoated area of the first electrode plate or the second electrode plate forms the tab.

A battery cell is provided. The battery cell includes a tab, an electrode terminal, an adapter for electrical connection between the electrode terminal and the tab. The adapter includes a first connecting portion for electrical connection with the electrode terminal; a second connecting portion for electrical connection with the tab; a third connecting portion for connecting the first connecting portion and the second connecting portion; and a bending portion, the third connecting portion is connected with the first connecting portion by the bending portion and the third connecting portion is connected with the second connecting portion by the bending portion; the third connecting portion includes a reinforcing portion, and the reinforcing portion is located at the connection of the third connecting portion and the bending portion; the minimum distance L from an edge of the reinforcing portion to a center line of the bending portion satisfies: R&#x3c;L&#x3c;(R+2).

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Ningde, China

Huasheng Su