US4692274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective interlayer for high temperature solid electrolyte electrochemical cells
Assignee: Westinghouse Electric Corp
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Filing: 1986-06-06
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Granted: 1987-09-08
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Expires: 2006-06-06
Abstract
Abstract A high temperature, solid electrolyte electrochemical cell is made, having a first and second electrode with solid electrolyte between them, where the electrolyte is formed by hot chemical vapor deposition, where a solid, interlayer material, which is electrically conductive, oxygen permeable, and protective of electrode material from hot metal halide vapor attack, is placed between the first electrode and the electrolyte, to protect the first electrode from the hot metal halide vapors during vapor deposition.
Inventors
- 👤 Arnold O. Isenberg
- 👤 Roswell J. Ruka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:58
CPC Classifications
H; H01; H01M; H01M8/00; H01M8/10; H01M8/12; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
64 words
A doped yttrium chromite composition selected from the group consisting of: (a) a chromite having the chemical formula Y 1-x Ca x Cr 1-y Co y O 3 , where x=0.005 to about 0.5 and y=0.005 to about 0.5, and (b) a chromite having the chemical formula YCR 1-y Co y O 3 , where x=0.005 to about 0.5 and y=0.005 to about 0.5.
Claim 2
Dependent Claim
64 words
A doped yttrium chromite composition selected from the group consisting of: (a) a chromite having the chemical formula Y 1-x Ca x Cr 1-y Co y O 3 , where x=0.005 to about 0.5 and y=0.005 to about 0.5, and (b) a chromite having the chemical formula YCR 1-y Co y O 3 , where x=0.005 to about 0.5 and y=0.005 to about 0.5.
Claim 3
Dependent Claim
20 words
The chromite of claim 1 having the chemical formula Y 1-x Ca x Cr 1-y Co y O 3 .
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) | 1990-09-07 | 1991-03-09 | 1991-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-09-07 | 1995-03-09 | 1995-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-09-07 | 1999-03-09 | 1999-09-08 | $7700.00 | Window Closed / Lapsed |