Production process of a membrane-electrode assembly and membrane-electrode assembly obtained by this process

摘要

In a process to make a membrane- electrode unit, separate first and second gas distributor layers incorporate hydrophobic carbon- based substrates. The substrates have selected inks containing a catalyst, dissolved ionomer and solvent. The first gas distributor layer has a catalyst coating, which is then presented to a second, still- moist facing catalyst layer on the polymer electrolyte membrane, at raised temperature and pressure. An Independent claim is also include for a commensurate polymer- electrolyte membrane catalyst.