A method for fastening of the current decrease of the parts at accumulators and galvanic elements, by electric welding and current decrease in part for carrying out the method

摘要

Electric cell constructions are provided with negative and positive electrodes having edges protruding respectively from opposite ends of an electrode assembly which latter includes a separator or separators between the positive and negative electrodes. Independent plate-like positive and negative electrode current collectors are located at respective opposite ends of the assembly. The respective plate-like members have shapes, e.g., of ray-like configuration and dimensions such as to cover or overlie only portions of such respective protruding edges and leave selected other portions of the respective edges of the electrodes completely uncovered. The plate-like members are welded directly and uniformly respectively to the entirety of those portions of the respective edges that they actually cover and contact. The electrodes comprise metallic carriers bearing active materials except in their edges which are bare of the active materials, and these bare edges of the carriers are those uniformly welded in entirety to the covering portions of the plate-like members.