TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Components: The membrane prevents excess electrolyte solution from contacting the hydrogen and oxygen electrode pairs, and prevents the hydrogen and oxygen streams from penetrating into the electrolyte. The hydrogen electrode pair comprises an anode active material having hydrogen storage capacity. It comprises two hydrogen electrodes, and hydrogen inlet and outlet. The electrolyte contacting surface reacts with the stored hydrogen with an electrolyte solution. The hydrogen electrodes have a deep channel forming a manifold when the hydrogen contacting surfaces are adjacently disposed. The deep channels have a conductive backing, preferably nickel, to collect an electrical current. A porous sheet is disposed between the hydrogen electrodes to allow a stream of hydrogen to flow across the hydrogen electrodes while maintaining mechanical support within the fuel cell. The current collector grid comprises mesh, grid, matte, expanded metal, foil, foam, and/or plate. The oxygen electrodes have an oxygen contacting surface, an electrolyte solution contacting surface, and a bulk of a cathode active material. The oxygen electrodes comprise a gas diffusion layer, a catalyst layer, a polytetrafluoroethylene layer, a current collector grid. The electrolyte solution comprises potassium hydroxide. The oxygen stream comprises air, and the hydrogen stream comprises gaseous hydrogen. The fuel cell is adapted to operate at ambient pressures.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The electrolyte chamber comprises a porous support structure disposed between a pair of membranes and comprising an expanded polymer sheet, preferably a polyolefin. The hydrogen electrodes comprise an anode active material layer, a porous polytetrafluoroethylene layer, a current collector grid. The compression plate is composed of rubber. Preferred Composition: The anode active material comprises a mixture of 35 wt.% mischmetal nickel alloy, 46 wt.% Raney nickel, 4 wt.% graphite, and 15 wt.% polytetrafluoroethylene powder. The gas diffusion layer comprises 40 wt.% PTFE and 60 wt.% carbon black. The catalyst layer comprises 50 wt.% mixture of 40 wt.% polytetrafluoroethylene and 60% carbon black, 15 wt.% carbon black, 15 wt.% graphite, and 20 wt.% silver oxide containing lithium aluminum alloy and gallium.