| 摘要 |
The present invention relates to a manufacturing method a membrane electrode assembly which has a low proton conduction resistance at a boundary of an electrolyte membrane and a catalyst layer. Catalyst ink including solvent, electrolyte 23 having proton permeability, and a carbon 26 supporting platinum is applied on both sides of an electrolyte membrane 4 having proton permeability. The solvent is evaporated for forming catalyst layers 10, 14. Voltage is applied between the catalyst layers 10, 14 under hydrogen atmosphere for forming proton conduction paths at boundaries between the catalyst layers 10, 14 and the electrolyte membrane 4. |
