TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Component: The hybrid fuel cell further comprises an anode section including anode(s) (13) disposed between the fuel cell portion and the rechargeable battery portion. The fuel cell portion comprises cathode(s) (11) in electrical communication with the anode. The rechargeable battery portion comprises auxiliary electrode(s) (12) in electrical communication with the anode. The auxiliary electrode comprises a positive electrode material. The fuel cell portion and the rechargeable battery portion share an electrolyte.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Material: The anode comprises an anode active material from zinc, cadmium, magnesium, or aluminum. The anode comprises a hydrogen storage material and/or Raney nickel. The conductive material comprises graphite or graphitized carbon. The hydrogen storage material comprises Rare-earth metal alloys, Misch metal alloys, zirconium alloys, titanium alloys, and/or magnesium/nickel alloys. The cathode comprises a carbon matrix with an active catalyst material catalytic toward the dissociation of molecular oxygen dispersed therein. The active catalyst material is silver, silver alloys, silver oxide, cobalt, cobalt oxide, cobalt manganese oxide, nickel, manganese oxide, manganese dioxide, and/or pyrolyzed macrocyclics. The cathode further comprises a peroxide decomposing material. The auxiliary electrode is a nickel electrode or a silver electrode. The positive electrode active material is nickel hydroxide/nickel oxyhydroxide, copper oxide, silver oxide, and/or manganese dioxide. Preferred Composition: The anode comprises 90-99 wt.% anode active material and 1-10 wt.% binder material. The anode comprises 0-88 wt.% hydrogen storage material, 0-88 wt.% Raney nickel, 4-12 wt.% binder material, and 0-5 wt.% conductive material. The positive electrode material comprises 75-85 wt.% positive electrode active material, 0-10 wt.% cobalt, 0-10 wt.% cobalt oxide, and 0-4 wt.% binder material.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The anode comprises an anode active material from zinc, cadmium, magnesium, or aluminum. The anode comprises a hydrogen storage material and/or Raney nickel. The conductive material comprises graphite or graphitized carbon. The hydrogen storage material comprises Rare-earth metal alloys, Misch metal alloys, zirconium alloys, titanium alloys, and/or magnesium/nickel alloys. The cathode comprises a carbon matrix with an active catalyst material catalytic toward the dissociation of molecular oxygen dispersed therein. The active catalyst material is silver, silver alloys, silver oxide, cobalt, cobalt oxide, cobalt manganese oxide, nickel, manganese oxide, manganese dioxide, and/or pyrolyzed macrocyclics. The cathode further comprises a peroxide decomposing material. The auxiliary electrode is a nickel electrode or a silver electrode. The positive electrode active material is nickel hydroxide/nickel oxyhydroxide, copper oxide, silver oxide, and/or manganese dioxide. Preferred Composition: The anode comprises 90-99 wt.% anode active material and 1-10 wt.% binder material. The anode comprises 0-88 wt.% hydrogen storage material, 0-88 wt.% Raney nickel, 4-12 wt.% binder material, and 0-5 wt.% conductive material. The positive electrode material comprises 75-85 wt.% positive electrode active material, 0-10 wt.% cobalt, 0-10 wt.% cobalt oxide, and 0-4 wt.% binder material.