| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for inspecting a fuel battery by which a determination can be made on whether the bonding state at the interface of a catalyst layer and an electrolytic film and the bonding state at the interface of the catalyst layer and a diffusion layer are appropriate or not.SOLUTION: A method for inspecting a fuel battery comprises: a preparation step; a voltage measurement step; and a determination step. In the preparation step, a fuel battery including an electrolytic film, and first and second electrodes provided on two opposing sides of the electrolytic film respectively is prepared, provided that each electrode includes a catalyst layer and a gas diffusion layer. In the voltage measurement step, a constant oxidation current is caused to flow between the first and second electrodes while supplying at least one kind of humidification gas selected from a group consisting of nitrogen, helium, argon or air to the first and second electrodes and in this condition, a voltage of the fuel battery is measured. In the determination step, a first voltage detected in an initial stage of causing the oxidation current to flow, and a second voltage which is higher than the first voltage, and detected after the detection of the first voltage are used to make a determination on whether the bonding state at the interface of the catalyst layer and the gas diffusion layer is appropriate or not. |
