Repetitive bending test of membrane electrode assembly for bendable polymer electrolyte membrane fuel cell

초록

Membrane electrode assemblies (MEAs) with carbon paper and cloth for bendable polymer electrolytemembrane fuel cell were characterized as it is subject to repetitive bending. The performance of the MEAwith carbon paper was decreased significantly while the MEA with carbon cloth remained constant afterrepetitive bending. Electrochemical impedance spectroscopy revealed ohmic and charge transferresistances of the MEA with carbon paper were increased by repetitive bending. Such performancedegradation is due to physically observed damages in carbon paper and its detachment from the MEA,which was not in the MEA with carbon cloth due to its intrinsicflexibility.

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