Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1993-04-22
1994-05-31
Niebling, John
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
204DIG3, 204DIG4, 205299, 205300, 429 50, H01M 1026, C25F 500
Patent
active
053166329
ABSTRACT:
A method for improving the efficiency of electrolytic fuel cells and the like, and more particularly aluminum-air fuel cells, is described. The efficiency of the fuel cell is controlled by the rate of dissolution of Aluminum in an alkaline electrolyte and this rate can be increased dramatically by activating the surface of the anode with an activator such as Tin which is precipitated thereon. Self corrosion of the Aluminum anode, when the battery is not in use is a problem which is usually solved by using ultra pure Aluminum which is very expensive. The problem may be reduced by passivating the surface of the anode by electro-deposition of a passivating layer such as Pb. The passivating layer can be electrolytically removed to reactivate the battery before the activating layer is precipitated.
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patent: 2840521 (1958-06-01), Wasserman
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patent: 4322483 (1982-03-01), Tune
patent: 4942100 (1990-07-01), Hunter et al.
patent: 5004654 (1991-04-01), Hunter et al.
Hicks Richard J.
Niebling John
Phasge Arun S,.
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