US3579385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of impregnating metallic fiber battery electrodes
Assignee: Westinghouse Electric Corp
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Filing: 1970-04-13
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Granted: 1971-05-18
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Expires: 1990-04-13
Abstract
Abstract A METHOD OF LOADING ACTIVE MATERIAL INTO FLEXIBLE, BONDED, METALLIC FIBER, POROUS BATTERY PLAQUES, BY A PLURALITY OF MOLTEN SALT IMPREGNATION AND ELECTROLYSIS STEPS, FOR USE AS POSITIVE AND NEGATIVE ELECTRODES IN CELLS AND BATTERIES, WHEREIN THE ACTIVE MATERIAL IS CONDITIONED BY AN INTERMEDIATE CHARGING AND/OR INTERMEDIATE CHARGING AND DISCHARGING FORMATION STEP. THE CONDITIONING STEP IS BETWEEN THE LOADING STEPS AND CAUSES THE ACTIVE MATERIAL, PRECIPITATED DURING ELECTROLYSIS, TO COMPACT AGAINST AND BETWEEN THE FLEXIBLE METAL FIBERS, OPENING THE PORES OF THE PLAQUE AND ALLOWING ADDITIONAL LOADING AT A HIGH RATE IN SUBSEQUENT IMPREGNATION-ELECTROLYSIS STEPS.
Inventors
- 👤 William Feduska
- 👤 Jack T Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:55
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/24; H01M4/26; H01M4/28; H01M4/29; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-17 | 1974-11-16 | 1975-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-17 | 1978-11-16 | 1979-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-17 | 1982-11-16 | 1983-05-18 | $7700.00 | Window Closed / Lapsed |