Battery having metal terminal fixed to battery case

摘要

A battery provided with the following elements: a battery case; a metal terminal fixed to the battery case; a hole created in the metal terminal, having an opening part outside of the battery case; a member fitted into the hole, composed of a material whose mechanical strength is higher than the metal terminal, wherein the member comprises a projecting portion which protrudes from the hole; and a male screw part created in the projecting portion.