US3582403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing electrodes suitable for alkaline storage batteries
Assignee: ELIZABETH OWEN
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Filing: 1970-01-06
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Granted: 1971-06-01
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Expires: 1990-01-06
Abstract
Abstract THIS DISCLOSURE DESCRIBES ELECTRODES FOR USE IN SECONDARY BATTERY SOURCES AND IMPROVEMENTS IN THE PROCESS FOR MAKING THE SAME. IT PARTICULARLY RELATES TO THE PREPARATION OF NICKEL AND CADMIUM ELECTRODES. A POROUS PLAQUE IS IMPREGNATED WITH A SOLUTION OF THE DESIRED METAL ION AND THE METAL ION IS REACTED IN SITU WITH AN ANION WHICH FORMS A WATER-INSOLUBLE, HEAT-DECOMPOSABLE SALT. THE SALT IS THEN THERMALLY DECOMPOSED TO FORM THE METAL OXIDE. THE DISCLOSURE ALSO RELATES TO THE REMOVAL OF NITRATE ION IN A POROUS METAL SUBSTRATE BY REDUCING THE NITRATE WITH AN ENEDIOL COMPOUND.
Inventors
- 👤 John T Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:47
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/28; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |