Zinc-based electrode for alkaline electrochemical generator with increased shelf life in primary or secondary cell versions, includes copper foam structure with steel and tin, indium or bismuth composition

摘要

Current collection electrode (3) includes a layer of paste containing electrochemically-active material based on zinc. It includes a structure selected from: a copper foam or copper alloy foam, and a strip of steel or nickel steel. The structure is covered by a layer of composition(s) of an element selected from tin, indium or bismuth.