TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Film: Several hydrophilic regions exist at fixed intervals across the hydrophobic region in the permeable layer. The hydrophilic regions are of the same shape. Several platinum-containing catalyst layers of the same shape are formed at fixed intervals at one surface or both surfaces of the solid electrolyte film. The permeable layer contains photocatalyst and organopolysiloxane. Alternately, a permeable layer having only a hydrophilic region is formed on the platinum-containing catalyst layer. The permeable layer having a hydrophobic region is formed on a solid electrolyte film on which the platinum-containing catalyst layer is not formed. The platinum-containing catalyst layer and permeable layer having the hydrophilic region are of the same shape.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Film: Several hydrophilic regions exist at fixed intervals across the hydrophobic region in the permeable layer. The hydrophilic regions are of the same shape. Several platinum-containing catalyst layers of the same shape are formed at fixed intervals at one surface or both surfaces of the solid electrolyte film. The permeable layer contains photocatalyst and organopolysiloxane. Alternately, a permeable layer having only a hydrophilic region is formed on the platinum-containing catalyst layer. The permeable layer having a hydrophobic region is formed on a solid electrolyte film on which the platinum-containing catalyst layer is not formed. The platinum-containing catalyst layer and permeable layer having the hydrophilic region are of the same shape.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Siloxane: The organopolysiloxane is polysiloxane containing fluoroalkyl group. EXAMPLE - Ink for cathode catalyst layer formation was prepared by stirring a platinum supported catalyst (10 g), 5 wt.% Nafion solution (40) and isopropanol (40). Ink for an anode catalyst layer formation was prepared by mixing TEC 66E50 platinum-ruthenium supported catalyst (10), 5 wt.% Nafion solution (40) and isopropanol (40). A polyethylene terephthalate film provided with a Nafion 117 water ionic conductive electrolyte film was applied with the ink for cathode catalyst layer formation and dried. The PET film was exfoliated and a cathode catalyst layer was formed on one surface of the electrolyte film. The anode catalyst layer was similarly formed using the respective ink on the other surface of the electrolyte film, and a solid electrolyte film with a catalyst layer was manufactured. Coating liquid for the formation of a water repellent permeable layer was prepared by mixing isopropanol (3) and anatase-type titania sol (2) and was stirred for 10 minutes at 90degreesC followed by adding fluoromethoxysilane (0.14) and stirring for 10 minutes at 90degreesC and dilution. The resulting solution was applied on the cathode catalyst layer of the electrolyte film and dried at 150degreesC for 10 minutes to form a hydrophobic material layer of thickness 20-100 nm. The solution for the water repellent material layer was applied on the anode catalyst layer of electrolyte film and dried at 150degreesC for 10 minutes and hydrophobic material layer of thickness 20-100 nm was formed. The water repellent material layer was exposed to mercury vapor lamp via a mask and the permeable layer having hydrophilic regions across hydrophobic regions was formed, and a solid electrolyte film with catalyst layer was manufactured. A fuel battery cell was produced using the electrolyte film with the catalyst layer. The battery was supplied with hydrogen gas along the anode side and air along the cathode side. The initial stage characteristics, and the properties of the battery after continuous operation for 1000 hours were measured and it was found that the battery capability was not reduced even after continuous driving for 1000 hours.