US3754995A
Expired / Lapsed
US
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High temperature fuel cell
Assignee: BBC Brown Boveri AG Switzerland
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Filing: 1972-05-16
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Granted: 1973-08-28
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Expires: 1992-05-16
Abstract
Abstract A high temperature fuel cell is disclosed. The fuel cell is of the kind wherein a porous electrolyte body of compressed zirconium dioxide - ZrO2 - is admixed with additives of alkaline earth metal oxide or rare earth metal oxide. An anode layer of metallic nickel is deposited on a first surface of the electrolyte body which has a rough surface configuration. In accordance with the invention, a cathode layer is deposited on a second surface of the electrolyte body, the cathode layer being formed from a mixture of tin oxide - SnO2 - and antimony oxide Sb2O3 -, the amount of antimony oxide in the mixture ranging between about 7 and 30 mole percent.
Inventors
- 👤 H Kleinschmager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:23
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/10; H01M8/12; H01M8/1231; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
The improvement as claimed in claim 1, wherein the amount of Sb2O3 ranges between about 8 and 10 mole percent.
Claim 2
Dependent Claim
104 words
In a high temperature fuel cell of the kind comprising a porous electrolyte body of compressed ZrO2, said porous electrolyte body having a rough surface configuration and having a metallic anode layer deposited on a first surface of the electrolyte body, and a cathode layer deposited on a second surface of said electrolyte body, the improvement which comprises an admixture of said ZrO2 with about 4 mole percent of Y2 o3 and 4 mole percent of Y2 O3 and said cathode layer is a mixture of SnO2 and SB2O3 the amount of Sb2O3 in the mixture ranging between about 7 and 30 mole percent.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |