TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The conductive catalyst material is selected from platinum, iron, cobalt, nickel, ruthenium, rhodium, palladium osmium, iridium, copper, silver, gold, tin, titanium, chromium, their alloy or a carbon material supported with these elements. Preferably, the conductive catalyst material is carbon-supported platinum (Pt/C)    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The proton conductive material is an ionomer selected from polybenzimidazole, polyether ketone, polyether imide, polysulfone, perfluoro sulfonic acid, doped with phosphoric acid. Preferably, the proton conductive material is polybenzimidazole doped with phosphoric acid. The concentration of proton conductive material is 1-50 wt.% based on total weight of conductive catalyst material. Preferred Solvent: The concentration of solvent (A) is 4000-6000 wt.% based on total weight of ionomer, and that of solvent solution is 400-600 wt.% with respect to total weight of conductive catalyst material. The concentration of solvent (B) is 20000-40000 wt.% based on total weight of ionomer. The solvent (C) is water and isopropyl alcohol. Preferred Method: Drying is carried out at 60-120degreesC or freeze-drying is performed at -20 to -60degreesC. Preferred Binder: The hydrophobic binder is polytetrafluoroethylene and fluorinated ethylene propylene, in an amount of 1-40 wt.% based on total weight of metal catalyst. EXAMPLE - Polybenzimidazole (in g) (0.2) and N-methyl pyrrolidone (10 ml) were stirred at 250 rpm at room temperature for 30 minutes and a polybenzimidazole (PBI) solution was obtained. A platinum/carbon (2) and N-methyl pyrrolidone (10 ml) were stirred at 250 rpm at room temperature for 10 minutes to obtain a Pt/C solution. The Pt/C solution was dropped into PBI solution under ultrasonic condition and the resulting mixture was dropped into water (50 ml). The solution was dried at 80degreesC for 24 hours to obtain Pt/C catalyst coated with polybenzimidazole. The coated catalyst (1) was mixed with Fluorosarf (0.1) and hydrofluoro polyether (9.9 ml) and stirred at room temperature for 3 hours. A catalyst layer forming composition was obtained which was coated on a carbon paper and dried at 80degreesC for 3 hours and 120degreesC for 1 hour to obtain an electrode. The electrode was treated with phosphoric acid and a fuel cell was produced. The fuel cell had improved efficiency and performance.