Battery can trimming apparatus and method

Abstract

A battery can trimming apparatus includes a die with a first opening therethrough, a punch guide extending through the first opening of the die, the punch guide being configured to be in contact with an inner surface of a closed portion of a semi-finished battery can, and the semi-finished battery can including a surplus portion to be cut along a cutting line, the closed portion, and a second opening, a support pad above the punch guide, the support pad being configured to support an outer surface of the closed portion of the semi-finished battery can, and a punch below the die and moveable along a bottom of the die, the punch being configured to cut the surplus portion along the cutting line of the semi-finished battery can, and the cutting line being positioned at a predetermined distance from the outer surface of the closed portion of the semi-finished battery can.

Dependencies are inferred from the claim text.