Battery cells and electrical equipment

Abstract

This utility model relates to the field of battery technology, specifically providing a battery cell and an electrical device. The battery cell includes an electrode assembly, a housing, an explosion-proof valve plate, a protective sheet, and an insulating film. The housing houses the electrode assembly and includes a first wall with a vent hole having a first opening and a second opening. The first opening is farther from the electrode assembly than the second opening, and its area is smaller than that of the second opening. The explosion-proof valve plate is connected to the first wall and covers the second opening. The protective sheet is connected to the first wall and covers the first opening. The insulating film covers the housing and includes a flange connected to the side of the first wall opposite to the electrode assembly. The flange and the protective sheet do not overlap. The battery cell and electrical device described in this utility model can protect the explosion-proof valve plate while avoiding interference between the insulating film and the protective sheet, thus ensuring battery safety.

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