Method for producing a lead-containing plate for a battery having at least one projection

Abstract

A method for producing a leaded plate for a battery which has at least one projection comprising the steps: a) providing a leaded workpiece, b) providing a tool having a lower die and an upper die, wherein the lower die and/or the upper die have at least one recess, c) arranging the workpiece between the lower die and the upper die, d) arranging a deformable intermediate plate between the workpiece and the upper die or lower die, e) arranging a first strip and at least one second strip between the intermediate plate and the upper die or the lower die on a side of the intermediate plate facing away from the workpiece, f) executing a relative motion between the upper die and the lower die along a first direction which reduces a distance between the upper die and the lower die in order to exert pressure on the workpiece via the intermediate plate, the first strip and the at least one second strip and thereby effect a flowing movement of the material of the workpiece in a second direction running perpendicular to the first direction, wherein the first strip and the at least one second strip are arranged spaced at a distance from one another along the second direction in step e), and steps e) and f) are repeated multiple times so as to effect at least a portion of the material of the workpiece flowing into the at least one recess in order to form the at least one projection.

Dependencies are inferred from the claim text.