Patent US3377203A successfully refreshed from Google Patents.
US3377203A
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Method of producing fuel cells with solid electrolytes and ceramic oxide electrode layers
Assignee: Universität Greifswald
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Filing: 1964-11-18
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Granted: 1968-04-09
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Expires: 1984-11-18
Abstract
No abstract record available.
Inventors
- 👤 Mobius Hans-Heinrich
- 👤 Rohland Bernd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:21
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9016; H01M4/9025; H01M8/00; H01M8/24; H01M8/2404; H01M8/241; H01M8/2425; H01M8/243; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
METHOD OF PRODUCING FUEL CELLS CONSISTING OF SOLID ELECTROLYTE AND CERAMIC OXIDE ELECTRODE LAYERS, WHICH COMPRISES SIMULTANEOUSLY SINTERING A CERAMIC ELECTRONCONDUCTING OXIDE ANODE LAYER AND A CERAMIC ELECTRONCONDUCTING OXIDE CATHODE LAYER TO A SOLID OXYGEN-ION CONDUCTING ELECTROLYTE IN THE SAME ATMOSPHERE OF LOW PARTIAL PRESSURE OF OXYGEN, SAID SINTERING BEING CARRIED OUT AT A TEMPERATURE OF BETWEEN 1700* AND 1900*C. WHILE THE PARTIAL PRESSURE OF OXYGEN, AT LEAST DURING THE LAST PART OF THE PROCESS, DOES NOT INCREASE TO MORE THAN ABOUT 10**-3 ATMOSPHERES, AND THE ATMOSPHERE, AT LEAST DURING THE LAST PHASE OF SINTERING, CONSISTING OF A GAS WITH VOLUME RATIO OF CARBON DIOXIDE PLUS STEAM TO CARBON MONOXIDE PLUS HYDROGEN OF ABOUT 4-20 AND ANY ADMIXTURE OF INERT GAS.
Claim 2
Dependent Claim
121 words
METHOD OF PRODUCING FUEL CELLS CONSISTING OF SOLID ELECTROLYTE AND CERAMIC OXIDE ELECTRODE LAYERS, WHICH COMPRISES SIMULTANEOUSLY SINTERING A CERAMIC ELECTRONCONDUCTING OXIDE ANODE LAYER AND A CERAMIC ELECTRONCONDUCTING OXIDE CATHODE LAYER TO A SOLID OXYGEN-ION CONDUCTING ELECTROLYTE IN THE SAME ATMOSPHERE OF LOW PARTIAL PRESSURE OF OXYGEN, SAID SINTERING BEING CARRIED OUT AT A TEMPERATURE OF BETWEEN 1700* AND 1900*C. WHILE THE PARTIAL PRESSURE OF OXYGEN, AT LEAST DURING THE LAST PART OF THE PROCESS, DOES NOT INCREASE TO MORE THAN ABOUT 10**-3 ATMOSPHERES, AND THE ATMOSPHERE, AT LEAST DURING THE LAST PHASE OF SINTERING, CONSISTING OF A GAS WITH VOLUME RATIO OF CARBON DIOXIDE PLUS STEAM TO CARBON MONOXIDE PLUS HYDROGEN OF ABOUT 4-20 AND ANY ADMIXTURE OF INERT GAS.
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) | 1971-04-09 | 1971-10-09 | 1972-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-09 | 1975-10-09 | 1976-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-09 | 1979-10-09 | 1980-04-09 | $7700.00 | Window Closed / Lapsed |