Battery cell cover plate assembly and battery cell

Abstract

The utility model relates to the technical field of batteries, and discloses a battery cell cover plate assembly and a battery cell. The battery cell cover plate assembly comprises a cover plate body and a lower plastic structure; the lower plastic structure is attached to one side, facing the battery cell, of the cover plate body; the lower plastic structure comprises a first plate and a second plate which are connected with each other, the first plate is provided with a first step part, the second plate is provided with a second step part, and the first step part and the second step part are clamped to form a groove; the first step part is provided with a clamping ring, the second step part is provided with a clamping column, and the clamping ring is clamped to the clamping column. The clamping ring and the clamping column are respectively designed on the split type lower plastic plate of the battery cell cover plate assembly, the tail end of the plate is clamped, assembled and limited, so that the plate on the longer side is supported, the drooping height is prevented from being too large, and meanwhile, due to the assembling and limiting between the first step part and the second step part, the stability of the battery cell cover plate assembly is improved. The lower plastic structure is prevented from shaking in the width direction to cause poor battery cell manufacturing, the production efficiency is improved, and the production cost is reduced.

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