FUEL CELL FOR PORTABLE RADIO-ELECTRONIC EQUIPMENT Russian patent published in 2004 - IPC

FIELD: air-alcohol fuel cells for mobile phones, notebooks, and the like.

SUBSTANCE: proposed fuel cell has case accommodating catalytically active liquid anode, catalytically active water-repelling gas-diffusion air cathode, and liquid alcohol-alkali mixture filling inner space of case to separate anode from cathode; water-repelling surface of cathode is facing air. Cathode surface facing alcohol-alkali mixture is coated with layer of polymer, such as polybenzimidazole, possessing OH^- ion conductivity. Cathode catalyst is Fe, Ni, Co, Ru base non-platinum catalyst tolerant to alcohol. Alcohol-alkali mixture is mixture of 4M of KOH + 4M of alcohol; used as alcohol in alcohol-alkali mixture is methanol, ethanol, propanol, butanol, ethylene glycol, or glycerin. Ni/Ru catalyst on highly dispersed carbon carrier can be used as anode catalyst, Ni/Ru being in the form of nanoparticles. Ni/Ru catalyst produced by thermochemical synthesis on carbon black, electrical precipitation, chemical method, or mechanical mixing can be also used as anode catalyst. Silver or pyrolized polymers of N₄ complexes on carbon carrier can be used as cathode catalyst. The latter may be mixed up with polybenzimidazol.

EFFECT: reduced cost and enhanced stability of fuel cell characteristics.

14 cl, 1 dwg