Method for detecting defects of polymer electrolyte membrane of fuel cell for motor car, involves acquiring hydrogen and nitrogen partial pressures during variation of difference in pressure between anode and cathode systems

摘要

The method involves performing the variation of the difference in pressure between an anode system and a cathode system during a constant operating mode of the fuel cell. The hydrogen partial pressure of the hydrogen portions and the nitrogen partial pressure of the nitrogen portion are acquired during the variation of the difference in pressure between the anode system and cathode system.