Method of producing a microporous, gas permeable electrode structure and a microporous, gas permeable electrode structure

摘要

The invention relates to a method of producing a microporous, gas permeable electrode structure, and to a corresponding electrode structure. According to the method, on a substrate (2) by means of a vacuum evaporation process is formed a first microporous electrode layer (4) using an angle (&agr;) between the substrate (2) and the evaporation source (1) smaller than 90°. According to the invention, on the first microporous layer (4) is formed another microporous layer (5) of a precious metal using essentially the same evaporation angle (&agr;) as in the fabrication step of the first microporous layer (4).