METHOD FOR PRODUCING CATALYST LAYERS FOR FUEL CELLS

摘要

The present invention relates to a method for producing continuous catalyst layers on substrate materials by gravure printing with the aid of catalyst-containing inks, a printing plate being used which has at least one print image with an interrupted line screen whose longitudinal lines are arranged at an angle a of from 10 to 80° relative to the printing direction. Preferably, the print images have dip volumes in the range from range from 100 to 300 ml/m2. The catalyst layers produced are cohesive and continuous and have dry layer thicknesses in the range from 1 to 20 µm, preferably in the range from 2 to 15 µm.