METHOD OF DISCHARGING REACTION WATER IN PEM FUEL CELLS, AND RESPECTIVE PEM FUEL CELL

摘要

When withdrawing reaction water in polymer electrolyte membrane fuel cells, it is unnecessary to humidify the reaction gases or to increase the gas pressur e if a hydrophobic layer is used on the cathode side. Said hydrophobic layer comprises a smaller pore size than the layer located on the anode side. The reaction water is then removed via the anode.