Solid oxide cathode-based electrochemical oxygen generator for f

Details Solid oxide cathode-based electrochemical oxygen generator for f Solid oxide cathode-based electrochemical oxygen generator for f

1994-09-06

1996-07-23

Valentine, Donald R.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204271, 204296, C25B 900, C25B 1308, C25B 1508

Patent

active

055386059

ABSTRACT:
A self-contained, gas-generating electrochemical cell has been invented. The cell contains an anode which is exposed to water or water containing material, a water permeable, ion-conducting separator between the anode from the cathode and a cathode composed of an electrochemically decomposable chemical compound which produces water in the presence of protons and electrons.
An exemplary cell contains silver oxide as a principal component of the cathode, water as the principal anode component and a proton conducting membrane. The silver oxide reacts with protons electrically driven through said membrane and electrons from a power-source to form elemental silver and water. Deposition of elemental silver in the cathode compartment is advantageous inasmuch as it improves the electronic conductivity of the material in the cathode compartment. Water, in the anode, decomposes to protons and molecular oxygen while releasing electrons. It is this oxygen which acts as a pressurizing gas to perform some useful work, such as being the motive force to dispense fluids from a fluid-containing bladder to deliver said dispensed fluids to a particular site. The dispensed fluids may have some beneficial property such as medicinal, insecticidal, fragrant or other attributes.

REFERENCES:
patent: 3996126 (1976-12-01), Rasmussen
patent: 5186805 (1993-02-01), Gross et al.
patent: 5242565 (1993-09-01), Winsel
patent: 5395501 (1995-03-01), Rohrbacher et al.
patent: 5423454 (1995-06-01), Lippman

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