INSPECTION METHOD OF FUEL CELL

摘要

PROBLEM TO BE SOLVED: To provide an inspection method of a fuel cell enabled to detect a thin part of an electrolyte film without dividing the same.

SOLUTION: The inspection method of the fuel cell including a hydrogen electrode, an oxygen electrode, and an electrolyte film with protonic conductivity provided between the both electrodes comprises a process S1 of supplying hydrogen gas to the hydrogen electrode as well as inert gas to the oxygen electrode, a process S2 of controlling voltage between the both electrodes so that a reaction of the following formula (1) is generated at a hydrogen electrode side and that of the following formula (2) is generated at an oxygen electrode side, with the above gases being supplied, and a process S3 of measuring a current density distribution within a face of the fuel cell with the voltage in a controlled state. Formula (1): H2→2H++2e-; formula (2): 2H++2e-→H2.

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