Battery cell and electric equipment

Abstract

The embodiment of the invention relates to a battery cell and electric equipment. The battery cell comprises a shell, an electrode assembly and a feed-through structure; the shell is provided with a containing cavity and an opening, and the electrode assembly is contained in the containing cavity; the feed-through structure comprises a feed-through piece, a first insulating washer, an insulating sleeve, a second insulating washer and a gasket; the feed-through piece comprises a first connecting part, a shaft part and a second connecting part which are sequentially connected in the first direction, the area of the cross section of the first connecting part is larger than that of the cross section of the shaft part in the second direction perpendicular to the first direction, and the first connecting part is electrically connected with the electrode assembly; the shaft part penetrates through the first insulating washer, the insulating sleeve, the second insulating washer and the gasket; and the first insulating washer abuts against the inner surface of the shell, the insulating sleeve abuts against the shell at the opening, and the second insulating washer abuts against the outer surface of the shell. When acting force is applied to the second connecting part, the gasket disperses the acting force, deformation of the shell, the second insulating gasket and/or the insulating sleeve is reduced, and the risk of conduction of the shell and the feed-through piece is reduced.

Description

technical field [0001] The embodiments of the present application relate to the technical field of energy storage, and in particular, to a battery cell and an electrical device. Background technique [0002] A battery is a device that converts external energy into electrical energy and stores it inside, so as to supply power to external electrical devices (such as portable electronic devices, etc.) when needed. Batteries are widely used in daily life, providing great convenience and richness for people's daily life. However, in recent years, with the use of high-power software, the power consumption of the battery has increased dramatically. When the energy consumption of the battery in the electric device is insufficient, the user may recharge the electric device. Batteries include cells. In some application scenarios, such as a steel case battery, which includes a case and an electrode assembly, the case is provided with a storage cavity and an opening communicating wit...

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Problems solved by technology

[0004] In view of the above problems, the embodiment of the present application provides a battery cell and an electrical device, which overcomes or at least partially solves the above-mentioned problem that when a force is applied to the feedthrough, it is easy to cause deformation of the housing and the insulation structure and thus lead to a short circuit of the battery cell. The problem

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