ELECTROLYTE MEMBRANE/ELECTRODE UNION FOR FUEL CELL AND PROCESS FOR PRODUCING THE SAME

摘要

An electrolyte membrane/electrode union for fuel cell, comprising a polymeri c electrolyte membrane and a pair of electrodes having the electrolyte membran e interposed therebetween, each of the electrodes comprising a catalyst layer in contact with the polymeric electrolyte membrane and a gas diffusion layer in contact with the catalyst layer, wherein in a zone of polymeric electrolyte membrane interposed between the electrodes there are electron insulating particles as a spacer for separating the gas diffusion layers of the two electrodes from each other. The two electrodes are securely separated from each other by means of the polymeric electrolyte membrane, so that a polymer type fuel cell of low internal resistance and large effective reaction area can be obtained.