Energy storage systems for terrestrial solar generators

Details Energy storage systems for terrestrial solar generators Energy storage systems for terrestrial solar generators

May 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981vbgk.rept.....j&link_type=abstract

Final Report, Dec. 1980 Varta Batterie A.G., Kelkheim (Germany, F.R.). Forschungs- und Entwicklungszentrum.

Computer Science

Electric Energy Storage, Mercury Oxides, Recharging, Solar Generators, Storage Batteries, Electrodes, Intermetallics, Mercury (Metal), Metal Air Batteries, Nickel Cadmium Batteries

Scientific paper

Mercury can react with Raney nickel to form the alloy NiHg4. This intermetallic compound is the basis of an excellently rechargeable positive electrode material. In combination with cadmium it forms a rechargeable cadmium/mercury oxide cell which can be operated under hermetically sealed conditions. Since both electrodes are thermodynamically stable in aqueous alkaline electrolytes, the self discharge rate of the cell is very low and hence the Coulomb efficiency even at very low charge rates in the order of 1000 - 2000 hrs. is higher than 95%. The cadmium/mercury oxide cells can be cycled more than a hundred times. These cells are particularly qualified to serve as an energy storage in combination with photovoltaic cells.

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