Method of forming metallic current conducting lugs at electrode plates of accumulators

A method of forming metallic current conducting lugs on inner sides of a pair of accumulator electrode plates wherein at least the region where each current conducting lug is to be formed comprises a plastic net structure which includes a tin or lead/tin coating and/or a lead coating or a lead alloy coating, the plastic net structure having two oppositely disposed surfaces and a plurality of edges which include a pair of opposite free edges, the method comprising the steps of:

• applying two metal strips of an alloy which melts at low temperature with flat surfaces of the metal strips to two oppositely disposed surfaces of the plastic net structure in the region of each current conducting lug which is to be formed, with the metal strips covering over at least the upper portion of the region where the current conducting lug is to be formed;
• pressing the two metal strips toward one another clamping the plastic net structure with a high pressure to soften and cause the two metal strips to flow through the plastic net structure and connect with one another at least adjacent edges of the metal strips, the plastic net structure having a sufficiently high melting temperature to prevent melting and decomposition under the high pressure;
• and
• stamping out the current conducting lugs after the two metal strips are pressed approximately to the size of the current conducting lug.