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

摘要

A method of forming metallic current conducting lugs on an accumulator electrode plate wherein at least the region where the current conducting lug has to be formed comprises a plastic net structure which is preferably provided with a metallization which conducts electricity well, in particular of copper, which is in turn provided with a tin or lead/tin coating and/or a lead coating or a lead alloy coating. Metal strips of an alloy which melts at low temperature are applied to the two oppositely disposed surfaces of the plastic net structure in the region of the current conducting lug which is to be formed. The strips cover over at least the upper region of the current conducting lug which is to be formed. The two metal strips are pressed together from the flat sides with a high pressure while clamping the plastic net structure, preferably while being heated to a temperature which at least softens the metal strips, and preferably melts them at the edges but does not yet allow the plastic net structure to be melted or decomposed. The metal of the metal strips flows into the plastic net structure and the two metal strips are connected together at least at the edges, but preferably also in the interior of the plastic net structure.