TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The fuel cell portion and the rechargeable battery portion are adapted to share reactant(s). The battery portion is adapted to provide power to a desired application during operation and the fuel cell portion is adapted to charge the battery portion. The hybrid fuel cell further comprises anode section shared between the fuel cell portion and the battery portion. The electrochemical cell units include auxiliary electrode, first and second anode pairs, first and second cathodes, first and second battery separators, and first and second gas distributor plates.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Materials: The fuel cell portion comprises cathode (11) in electrical communication with the anode (13) and having carbon matrix with active catalyst material consisting of silver, silver alloys, silver oxide, cobalt, cobalt oxide, cobalt manganese oxide, nickel, manganese oxide, manganese dioxide, and/or pyrolyzed macrocyclics. The cathode further comprises peroxide decomposing material. The battery portion comprises auxiliary electrode (12) in electrical communication with the anode and having positive electrode material consisting of nickel hydroxide/nickel oxyhydroxide, copper oxide, silver oxide, and/or manganese dioxide.    TECHNOLOGY FOCUS - METALLURGY - Preferred Materials: The anode comprises anode active material including zinc, cadmium, magnesium, aluminum, iron, and/or lithium.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Materials: The fuel cell portion comprises cathode (11) in electrical communication with the anode (13) and having carbon matrix with active catalyst material consisting of silver, silver alloys, silver oxide, cobalt, cobalt oxide, cobalt manganese oxide, nickel, manganese oxide, manganese dioxide, and/or pyrolyzed macrocyclics. The cathode further comprises peroxide decomposing material. The battery portion comprises auxiliary electrode (12) in electrical communication with the anode and having positive electrode material consisting of nickel hydroxide/nickel oxyhydroxide, copper oxide, silver oxide, and/or manganese dioxide.