Method for producing battery can

Abstract

A method for producing a battery can including the steps of: (1) making a battery can having a cylindrical body, a bottom, and an opening from a steel plate; (2) cleaning the battery can with water; and (3) heating and drying the battery can by transporting the battery can through a high frequency induction heater after the step (2). In the step (3), the battery can is placed such that the angle between a horizontal plane and the direction extending from the bottom to the opening along the central axis of the battery can in the longitudinal direction of the cylindrical body is approximately 0° to 90°. The heater has an opening in an upper part of the transport route of the battery can and is placed so as not to face the opening of the battery can.

Dependencies are inferred from the claim text.