US3899357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodes including mixed transition metal oxides
Assignee: United States Department of the Army
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Filing: 1973-07-16
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Granted: 1975-08-12
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Expires: 1993-07-16
Abstract
Abstract Mixed transition metal oxides are made by a partial reduction of stoichiometric mixtures of the required salts based on the proportion of the metal ion in the oxide being prepared and a firing of the partially reduced mixtures at 800 degrees C. in a carbon monoxide rich atmosphere. The mixed transition metal oxides are used as catalysts in air oxygen cathode structures in practical battery applications. This invention relates to mixed transition metal oxides, to their method of manufacture, and to the use of the oxides as catalysts in air oxygen cathode structures in practical battery applications.
Inventors
- 👤 Rose V Rinaldi
- 👤 James E Wynn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:32
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/86; H01M4/90; H01M4/9016; Y; Y02; Y02E; Y02E60/00; Y02E60/30; Y02E60/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A BATTERY ELECTRODE COMPRISING AN EXPANDED NICKEL MESH COATED WITH A MIXTURE OF 20 TO 35 PERCENT BY WEIGHT OF A MIXED TRANSITION METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF MGCOAL4O8, CUFEAL4O8, CUCOAL4O8, MGCUAL4O8, COFEAL4O8 AND MGFEAL4O8 WITH CONDUCTIVE CARBON AND POLYTETRAFLUORO ETHYLENE.
Claim 2
Dependent Claim
44 words
A BATTERY ELECTRODE COMPRISING AN EXPANDED NICKEL MESH COATED WITH A MIXTURE OF 20 TO 35 PERCENT BY WEIGHT OF A MIXED TRANSITION METAL OXIDE SELECTED FROM THE GROUP CONSISTING OF MGCOAL4O8, CUFEAL4O8, CUCOAL4O8, MGCUAL4O8, COFEAL4O8 AND MGFEAL4O8 WITH CONDUCTIVE CARBON AND POLYTETRAFLUORO ETHYLENE.
References Cited (Backward Citations)
US2370443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-08-11 | 1979-02-10 | 1979-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-11 | 1983-02-10 | 1983-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-11 | 1987-02-10 | 1987-08-12 | $7700.00 | Window Closed / Lapsed |