US3330699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of operating fuel cell containing fused metal hydroxide and carbonate electrolyte
Assignee: National Research Development Corp UK
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Filing: 1963-01-31
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Granted: 1967-07-11
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Expires: 1983-01-31
Abstract
No abstract record available.
Inventors
- 👤 Tantram Anthony Desmond Shand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:50
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/14; H01M8/141; H01M2008/147; H01M2300/00; H01M2300/0017; H01M2300/0048; H01M2300/0051; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF OPERATING A FUEL CELL WHICH COMPRISES PROVIDING AS ELECTROLYTE A FUSED MIXTURE OF MEATL HYDROXIDE AND METAL CARBONATE AND SUPPLYING TO THE POSITIVE ELECTRODE THEREOF A MIXTURE CONSISTING ESSENTIALLY OF WATER VAPOR AND AN OXIDIZING GAS SELECTED FROM THE GROUP CONSISTING OF AIR AND OXYGEN WHILE SUPPLYING A FUEL GAS TO THE FUEL ELECTRODE AT THE CELL, THE RELATIVE PROPORTIONS OF HYDROXIDE AND CARBONATE BEING SUCH THAT OXYGEN IS TRANSPORTED IN THE FUSED ELECTROLYTE BY HYDROXYL IONS FORMED AT THE POSITIVE ELECTRODE AND SO THAT HYDROXYL IONS ARE DISCHARGED AT THE FUEL ELECTRODE RATHER THAN CARBONATE IONS.
Claim 2
Independent Claim
100 words
THE METHOD OF OPERATING A FUEL CELL WHICH COMPRISES PROVIDING AS ELECTROLYTE A FUSED MIXTURE OF MEATL HYDROXIDE AND METAL CARBONATE AND SUPPLYING TO THE POSITIVE ELECTRODE THEREOF A MIXTURE CONSISTING ESSENTIALLY OF WATER VAPOR AND AN OXIDIZING GAS SELECTED FROM THE GROUP CONSISTING OF AIR AND OXYGEN WHILE SUPPLYING A FUEL GAS TO THE FUEL ELECTRODE AT THE CELL, THE RELATIVE PROPORTIONS OF HYDROXIDE AND CARBONATE BEING SUCH THAT OXYGEN IS TRANSPORTED IN THE FUSED ELECTROLYTE BY HYDROXYL IONS FORMED AT THE POSITIVE ELECTRODE AND SO THAT HYDROXYL IONS ARE DISCHARGED AT THE FUEL ELECTRODE RATHER THAN CARBONATE IONS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |