Chemistry: electrical current producing apparatus – product – and – Having magnetic field feature
Patent
1976-02-09
1977-09-13
Mack, John H.
Chemistry: electrical current producing apparatus, product, and
Having magnetic field feature
429 40, 429 44, 204129, H01M 400, H01M 818
Patent
active
040483835
ABSTRACT:
A combination water electrolyzer and fuel cell for selectively storing and supplying energy while in a substantially fixed position, typically comprising a pan held in a substantially horizontal position, an aqueous alkaline electrolyte (e.g., NaOH) held within the pan at elevated temperature, means communicating with a supply of hydrogen and forming a container for the hydrogen within the pan, a thin nonporous corrosion resistant hydrogen diffusion negative electrode (e.g., PdAg) having a porous support positioned within the pan and having one surface on contact with the electrolyte and an opposite surface communicating with the hydrogen, means communicating with a supply of oxygen and furnishing the oxygen to a region contiguous with the exposed surface of the electrolyte, a thin porous corrosion resistant positive electrode (e.g., Pt or alloy thereof) in contact with the electrolyte and having a thin substantially flat major portion yieldably supported to float adjacent and substantially parallel to the upper surface of the electrolyte with a substantial portion of the surface of the positive electrode contacted by electrolyte and adjacent an interface of the electrolyte and the oxygen, and means for connecting the electrodes selectively either to a source of direct current for charging the cell or to an electric load circuit for using the energy stored in the cell when charged.
Typically included are an insulating member fitting onto the upper portion of the cell and shaped to hold another such cell; at least one additional such cell, each held by the insulating member of the cell beneath it; means for storing in a first confined region the supply of hydrogen, including that produced during charging; and means for storing in a second confined region the supply of oxygen, including that produced during charging, with the partial pressure of the oxygen at least about 5 psia.
REFERENCES:
patent: 3306774 (1967-02-01), Dengler
patent: 3337369 (1967-08-01), Frazier
patent: 3375140 (1968-03-01), Oswin
patent: 3416966 (1968-12-01), Oswin
patent: 3507704 (1970-04-01), Webb
patent: 3839091 (1974-10-01), Bloomfield
Battelle (Memorial Institute)
Dunson Philip M.
Feeley H. A.
Mack John H.
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