NOVELTY - A fuel cell (1) consists of a fuel electrode (3), an electrolytic membrane (4), an oxidizing-agent electrode (5), and a fuel-supply mechanism (6). A cation permeating the electrolytic membrane reacts with an oxidizing agent in the oxidizing-agent electrode. A hydrophobic layer (9) is interposed between the fuel electrode and fuel-supply mechanism, and is arranged at the fuel-supply mechanism side at the fuel-diffused layer (8) and fuel-electrode side. The fuel-diffused layer is made of a hydrophilic porous material.    USE - Fuel cell is used as power supply of vehicles and space components.    ADVANTAGE - The fuel cell enables efficient supply of liquid fuel to the fuel electrode, and efficient discharge of carbon dioxide produced by the fuel electrode. The fuel cell has excellent output characteristics. The volume flow of liquid fuel discharged to the fuel-electrode side from the fuel-diffused layer side is suppressed. Backward flow of discharged liquid fuel to the fuel-diffused layer side is prevented. Crossover which occurs when an unreacted fuel diffuses through the electrolytic membrane, is suppressed.    DETAILED DESCRIPTION - A fuel cell consists of a fuel electrode which produces a cation from liquid fuel, an electrolytic membrane adjoined with the fuel electrode and which transmits the cation from fuel electrode, an oxidizing-agent electrode arranged facing the fuel electrode through the electrolytic membrane, and a fuel-supply mechanism for supplying liquid fuel to the fuel electrode. The cation permeating the electrolytic membrane reacts with an oxidizing agent in the oxidizing-agent electrode. A hydrophobic layer is interposed between the fuel electrode and fuel-supply mechanism, and is arranged at the fuel-supply mechanism side at the fuel-diffused layer and fuel-electrode side. The fuel-diffused layer is made of a hydrophilic porous material.    DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of the fuel cell.    Fuel cell (1)    Fuel electrode (3)    Electrolytic membrane (4)    Oxidizing-agent electrode (5)    Fuel-supply mechanism (6)    Fuel-diffused layer (8)    Hydrophobic layer (9)