NOVELTY - A fuel cell generates electricity by arising an electric potential difference between anode and cathode side collectors (20,30). Potential difference is caused by reacting hydrogen ion (a) and oxygen ion (b) passing through ion-exchange membrane (10). Ions (a, b) are produced by contacting supplied hydrogen and packed oxidizing agent with platinum-type metal catalyst supported by collectors (20,30), respectively.    USE - As electric power unit for household appliances, such as mobile telephone and personal computer, and information technology equipments.    ADVANTAGE - The fuel cell is compact and efficiently dehydrogenates organic hydride. The fuel cell has simple structure, improved electric power generating efficiency, durability and contacting efficiency of catalyst metal.    DETAILED DESCRIPTION - A fuel cell comprises an ion exchange membrane (10), an anode side collector (20), a cathode side collector (30), a hydrogen separation membrane (40), an organic hydride dehydrogenation catalyst (50), an organic hydride retainer (51), a heater (52), an anode side reaction container (25), a cathode side reaction container (35) and a platinum-type metal catalyst (C) each supported by collectors (20,30). The collectors (20,30) are attached to the opposite surfaces of membrane (10). A similar-shaped opening is provided at containers (25,35). An oxidizing agent is packed in container (25).    The catalyst (50), the retainer (51) having the organic hydride, and the heater (52), are arranged at the inside of container (35). An opening is blocked by membrane (40).    The membrane (10) is inserted such that the whole surface of each opening is optionally covered. The containers (25,35) are coincided with the shape of each opening, and then the containers are integrated by mutually carrying out firm-insertion adherence. The packed oxidizing agent in the container (25) contacts with the catalyst (C) supported by the collector (20), and generates an oxygen ion.    An organic hydride supplied from the retainer (51) is dehydrogenated in the container (35), when the catalyst (50) is heated with the heater. The generated hydrogen is supplied to the collector (30), selectively separated by membrane (40) and contacted with the catalyst (C) supported by the collector (30), to generate hydrogen ion. The generated hydrogen and oxygen ions passing via the membrane (10) are reacted, an electric potential difference between the collectors (220,30) is arisen, and electricity is produced.    DESCRIPTION OF DRAWING(S) - The figure shows the sectional drawing of fuel cell.    Ion exchange membrane (10)    Anode side collector (20)    Anode side container (25)    Cathode side collector (30)    Cathode side container (35)    Hydrogen separation membrane (40)    Organic hydride dehydration catalyst (50)    Organic hydride retainer (51)    Heater (52)