Patent ID: 6455201
Filing Date: 2002-09-24
Classification: B21D,H01M,Y02E,Y10T

Abstract:
A method of manufacturing a plate for a battery electrode comprising the steps of: passing a thin metal sheet between a pair of rotation rollers comprising an embossing roller having concave portions and convex portions formed on a peripheral surface thereof and a rubber roller having smooth outer surface to form pores on said metal sheet and generate burrs each projecting toward one side from a peripheral edge of each of said pores by pressing said rubber roller against said convex portions of said embossing roller;wherein metal sheets having said pores and said burrs each projecting from the peripheral edge of each of said pores are layered one upon another; and said burrs of an upper layer metal sheet and said burrs of a lower layer metal sheet adjacent to said upper layer metal sheet are interlocked with each other to integrate said upper layer metal sheet and said lower layer metal sheet with each other; and spaces between said upper layer metal sheet and said lower layer metal sheet are communicated with each other through said pores.