Patent ID: 6685984
Filing Date: 2004-02-03
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A method for the production of a multilayer comprising an electrode and an electrolyte membrane, said method comprising:applying a coating solution (I) which comprises a dissolved or dispersed proton-conductive polymer and a solvent (Is) containing water in amounts from 25 to 60 wt % and an organic solvent in amounts from 75 down to 40 wt %, on an electrode; applying a coating solution (II) which comprises a dissolved or dispersed proton-conductive polymer and a solvent (IIs) containing water in amounts from 0 to less than 25 wt % and an organic solvent in amounts above 75 wt % to form, on the first coating without any drying of said first coating; and drying the coatings to form an electrolyte membrane.