US4218518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel cell use of gaseous fuels and oxygen provided at electrode absorbed in liquid dielectric
Assignee: Individual
•
Filing: 1979-01-17
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Granted: 1980-08-19
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Expires: 1999-01-17
Abstract
Abstract A fuel cell is an electrochemical device composed of a nonconsumable anode and cathode, an electrolyte, fuel and controls, the maximum current density that can be passed depends upon the rate of mass transfer of atoms and their respective electrons. This invention improves the rate of mass transfer by submerging the "oxygen" contact electrode in a dielectric liquid saturated with absorbed oxygen, and when using a gaseous fuel, submerging the "hydrogen" contact electrode in a dielectric liquid saturated with the absorbed gaseous fuel. The invention uses a liquid dielectric which is nonmiscible with water, thus as water is formed at either electrode, the water is immediately rejected from the electrode/dielectric contact and being equally rejected by the dielectric is removed from interfering or resisting current flow, thus further improving the efficiency of the fuel cell.
Inventors
- 👤 Vesper A. Vaseen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:08
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/08; H01M8/06; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
220 words
An improvement in the process of production by electrochemical direct conversion of chemicals to electric energy consisting of the steps of; absorbing oxygen gas in an inert dielectric liquid which is also immiscible with water, replacing the dry gas compartment fluid of a conventional fuel cell with the oxygen saturated dielectric liquid, adjusting the pressure differential between the electrolyte compartment and the oxygen carrier liquid compartment so electrolyte wets porous electrode but doesn't leak to oxygen carrier compartment, circulating the oxygen saturated, inert dielectric liquid through the cell compartment which is for the oxygen contact with the oxygen electrode, carrying water of reactions from the cell with the dielectric to a waste separator, gravity separating the water from the dielectric liquid, disposing of the water, recycling the dielectric liquid, replenishing the electrolyte with controlled quality, specified electrolyte, recycling the electrolyte through quality control, providing a fuel to the cell which produces an E.M.F. across the cells electrodes and terminals, said fuel being either a liquid naturally, or absorbing said fuel, if gases, in an inert dielectric liquid, recirculating said fuel through the fuel compartment of the cell, replenishing said fuel as required for continuous E.M.F. production, connecting individual cells in series to amplify the individual cell voltage to a predetermined quantity, separating the water of reaction, disposing of the water.
Claim 2
Dependent Claim
220 words
An improvement in the process of production by electrochemical direct conversion of chemicals to electric energy consisting of the steps of; absorbing oxygen gas in an inert dielectric liquid which is also immiscible with water, replacing the dry gas compartment fluid of a conventional fuel cell with the oxygen saturated dielectric liquid, adjusting the pressure differential between the electrolyte compartment and the oxygen carrier liquid compartment so electrolyte wets porous electrode but doesn't leak to oxygen carrier compartment, circulating the oxygen saturated, inert dielectric liquid through the cell compartment which is for the oxygen contact with the oxygen electrode, carrying water of reactions from the cell with the dielectric to a waste separator, gravity separating the water from the dielectric liquid, disposing of the water, recycling the dielectric liquid, replenishing the electrolyte with controlled quality, specified electrolyte, recycling the electrolyte through quality control, providing a fuel to the cell which produces an E.M.F. across the cells electrodes and terminals, said fuel being either a liquid naturally, or absorbing said fuel, if gases, in an inert dielectric liquid, recirculating said fuel through the fuel compartment of the cell, replenishing said fuel as required for continuous E.M.F. production, connecting individual cells in series to amplify the individual cell voltage to a predetermined quantity, separating the water of reaction, disposing of the water.
Claim 3
Dependent Claim
68 words
The process of claim one including the absorbing gaseous fuels in an inert dielectric liquid, recycling the fuel saturated dielectric liquid through the fuel or hydrogen compartment of the cell, carrying the nonmiscible water from the cell to a separator, separating the water from the dielectric liquid, disposing of the water, recycling the dielectric through a mixing device, saturating the dielectric liquid with gaseous fuel recycling through cell.
Claim 4
Dependent Claim
19 words
The process of claim one (1) including the use of off site provided oxygen as the source of oxygen.
Claim 5
Dependent Claim
16 words
The process of claim one (1) including the safety of non explosive fuels and oxidant combinations.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-08-19 | 1984-02-18 | 1984-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-19 | 1988-02-18 | 1988-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-19 | 1992-02-18 | 1992-08-19 | $7700.00 | Window Closed / Lapsed |