▎ 摘　　要

NOVELTY - The method involves mixing a precursor of a perfluorosulfonic acid polymer with a second material to form a precursor material in a reduced humidity zone. The precursor material is extruded under reduced humidity to form a filament. The PEM is printed with the filament. The precursor of the perfluorosulfonic acid polymer is converted to the perfluorosulfonic acid polymer within the PEM. The PEM is coated with a conductive material that is essentially free of platinum. The second material comprises a perfluoroalkoxy alkane (PFA), polybenzimidazole, polyethersulfone, sulfonated polyimide, and/or a water-soluble material. The reinforcement material comprises fiberglass, polyvinylidene fluoride (PVDF), carbon fibers, graphene and graphene oxide. USE - Method for preparing proton exchange membrane. ADVANTAGE - The proton exchange membrane has high proton conductivity, high electronic resistivity, durability, low reactant permeation, and stability. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the proton exchange membrane-based fuel cell. 100Fuel cell 105Fuel reservoir 110Anode 125Cathode 130Oxidant reservoir