US3701684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zinc-zinc halide storage battery
Assignee: Consiglio Nazionale delle Richerche
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Filing: 1969-12-29
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Granted: 1972-10-31
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Expires: 1989-12-29
Abstract
Abstract PRIOR ART ELECTRIC STORAGE BATTERIES OF THE ZINC-ZINC HALIDE AQUEOUS SOLUTION TYPE WITH A SOLUBLE CATHODE AND A DISSOLVED ANODE IN CIRCULATING ELECTROLYTE ARE IMPROVED BY(1) ADDDING SALTS SUCH AS NH4C1 AND CS2SO4 WHICH HAVE VEY MOBILE IONS CAPABLE OF ASSURING GOOD ELECTRICAL CONDUCTIVITY, WHICH ARE SOLUBLE IN THE AQUEOUS ELECTROYTE AND WHICH REACT WITH THE ZINC HALIDE TO OBTAIN A ZINC SALT AND A METALLIC HALIDE BOTH OF WHICH ARE ONLY SLIGHTLY SOLUBLE THEREBY GIVING A PRECIPITATE AND (2) ADDING AN ORGANIC SOLVENT, INSOLUBLE IN WATER.
Inventors
- 👤 Mario De Rossi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:34
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/365; 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) | 1975-10-31 | 1976-05-01 | 1976-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-31 | 1980-05-01 | 1980-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-31 | 1984-05-01 | 1984-10-31 | $7700.00 | Window Closed / Lapsed |