Top cover assembly and battery

Abstract

Provided are a battery, and a top cover assembly including a top cover sheet, a pole and a connecting block. The top cover sheet includes a mounting hole. The pole includes a body and a boss provided on the body. The body is insulatively connected to a lower end of the top cover sheet. The boss passes through the mounting hole and insulatively connects to the top cover sheet. An outer peripheral edge of an upper end of the boss includes a first notch. The connecting block is insulatively connected to an upper end of the top cover sheet. The connecting block is provided with a connecting hole. The upper end of the boss is inserted into the connecting hole. An upper end of a wall of the connecting hole is provided with a second notch circumferentially. The first notch and the second notch form a welding recess.

Dependencies are inferred from the claim text.