Cover plate assembly, battery cell, and battery

Abstract

A cover plate assembly, a battery cell, and a battery are provided, relating to the technical field of batteries. The cover plate assembly includes a cover plate, a lower plastic member, an electrode post, and a tab insulating film. The lower plastic member is connected to the cover plate and is provided with an electrode post clearance hole. The electrode post is fixed to the cover plate and extends through the electrode post clearance hole. The electrode post is provided with a tab connection groove. The tab insulating film is disposed on a side of the lower plastic member facing away from the cover plate and is configured to insulate and isolate a tab of the battery cell from a housing of the battery cell.

Dependencies are inferred from the claim text.