| 摘要 |
PURPOSE:To improve performance and obtain durability in long running by forming a water repellent processing portion on a surface opposite to the surface on which gas flow path is formed in an electrode with rib and forming hydrophilic processing portion on the part except for the water repellent processing portion and by coating catalyst only on the water repellent processing portion. CONSTITUTION:A portion on which no water repellent processing is applied is provided in the intersecting direction with a gas flow path on a surface opposite to the surface on which the gas flow path of a porous electrode body with rib so as to perform water repellent processing selective and partially without damaging retaining function of electrolyte. Next, the portion except the portion without water repellent processing is applied water repellent processing with thickness corresponding to a rib remaining thickness to form a water repellent processing portion 9. And hydrophilic processing is applied with thickness corresponding to at least the rib remaining thickness to the portion on which water repellent processing in the electrode body with rib which is applied partial water repellent processing is not applied to form a water repellent processing portion 10. After drying the electrode with rib, carbon carrying platinum catalyst is applied only to the water repellent processing portion, and the portion is applied thermal processing to sinter teflon and the electrode with rib 8 is obtained. |
