Verfahren zur Herstellung von selbstatmenden,hydrophoben Gaselektroden fuer Metall-Luft-Batterien und Brennstoffzellen

摘要

A porous gas diffusion electrode which is composed of a gas-permeable support and an electrically conductive catalyst layer of electrocatalytically active metal is made by applying the catalyst layer to the support in the form of a pigmented lacquer containing a metal compound forming a precursor of said catalyst, then drying or hardening the lacquer while on the support so as to adhere it thereto and thereafter subjecting the catalyst precursor compound to an activation treatment to convert the compound to the active metal and to provide the necessary porosity to the layer.