TECHNOLOGY FOCUS - ELECTRICAL POWER AND ENERGY - Preferred Electrode: The electrode (E1) includes a carbon powder, or a mixture including including the active mix (m1) and carbon powder. The electrode (E1) is produced by a method that includes compacting and sintering. The anode is selected from zinc, magnesium, lithium, aluminum, and alloys of these metals. The electrode (E1) includes active catalyst mix (m1) loading of 5-100 (preferably 80, especially 60, particularly 40) mg/cm2. Preferred Electrochemical Cell: The cell is an alkaline electrolyte electrochemical cell. The alkaline fuel cell is adapted to consume an anode fuel selected from anode fuels consisting of hydrogen, ethanol, methanol, aqueous solutions of ethanol, and aqueous solutions of methanol. The alkaline fuel cells are adapted to use as the fuel for the cathode a fuel selected from air, air filtered to remove carbon dioxide, and oxygen.    TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Catalyst: The catalyst (c1) includes the crystalline particles (b1) of zirconium oxide (1-6, preferably 2-4) wt.%. A concentration of the silver and the crystalline particles of zirconium oxide in the catalyst (c1) exceeds 99 (preferably 99.6, especially 99.6-99.95) wt.%. Preferred Components: The crystalline particles (b1) have an average particle size of less than 50 (preferably less than 20, especially less than, particularly 2 to 5) nm. The clusters (c2) of silver particles have an average size of 1-50 (preferably 3-25) microns. The primary particles (b1) of silver have an average particle size of 100 (preferably 60, especially more than 20, particularly more than 40 nanometers). The pores in the porous clusters (c2) have an average characteristic diameter of 15-250 (preferably 50-80) nm. The electrolyte is alkaline. The alkaline solution (S1) includes metal hydroxide selected from potassium hydroxide and sodium hydroxide. Preferred Method: In the method (M1), the rinsing is performed so as to bring the solution to a pH of 6-8.    TECHNOLOGY FOCUS - METALLURGY - Preferred Components: The current collector is electrically conductive and selected from metal screen, metal wire mesh, non-woven metal fiber mat, perforated metal sheet, and stretched (expanded) metal foil. The current collector includes a material selected from nickel, nickel alloys, steel, stainless steels, silver, silver-coated nickel, silver-coated nickel alloys, silver-coated steel, and silver-coated stainless steel. The current collector is coated with silver.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The water-repellent polymer is selected from water-repellent polymers consisting of paraffins and hydrophobic polymers. The hydrophobic polymers include fluorinated polymers. The fluorinated polymers include polytetrafluoroethylene, fluorinated ethylene-propylene, a perfluoroalkoxy polymer resin chlorotrifluoroethylene, and a polyvinylidene fluoride. The porous hydrophobic film is selected from porous hydrophobic films consisting of polytetrafluoroethylene, fluorinated ethylene-propylene, perfluoroalkoxy polymer resin, chlorotrifluoroethylenes, and polyvinylidene fluorides. The porous hydrophobic film includes a polymer (preferably polytetrafluoroethylene) powder having an average size of less than 5 (preferably less than about 3) microns. The hydrophobic layer has a thickness of 25-300 microns. The electrode mix (m1) includes water-repellent polymer (5-20, preferably 12-18) wt.%. EXAMPLE - No suitable example given.