Patent US4716081A successfully refreshed from Google Patents.
Patent US3726716A successfully refreshed from Google Patents.
US3726716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic electrolytes for batteries
Assignee: Duracell Inc USA
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Filing: 1970-12-16
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Granted: 1973-04-10
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Expires: 1990-12-16
Abstract
Abstract A HIGH ENERGY DENSITY ELECTRIC CELL HAS A LIGHT METAL ANODE AND AN ORGANIC ELECTROLYTE CONTAINING AN ADDITIVE COMPRISING A METAL SALT, THE METAL OF WHICH IS AN ION OF A METAL LESS REACTIVE THAN LITHIUM. THIS ADDITIVE SHOWS SUPERIOR ABILITY IN REMOVING PASSIVE FILM FORMED ON THE ANODE, AND THE ADDITVE INCUDES METAL CHLORIDE SALTS SELECTED FROM THE GROUP CONSISTING OF NICL2, MGCL2, ZNCL2, HGCL2, PBCL2, TLCL AND THE MIXTURES THEREOF.
Inventors
- 👤 L Athearn
- 👤 C Liang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:27
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M4/00; H01M4/02; H01M4/36; H01M4/48; H01M6/166; H01M6/168
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |