US3476602A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery cell
Assignee: Dow Chemical Co
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Filing: 1966-07-25
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Granted: 1969-11-04
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 William E Brown
- 👤 Robert G Heitz
- 👤 Charles A Levine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:48
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/20; H01M10/00; H01M10/36; H01M10/39; H01M10/3909; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A BATTERY CELL COMPRISING A FIRST OXIDIZABLE LIQUID METAL ELECTRODE, A SECOND FLUID REDUCIBLE ELECTRODE AND A SUBSTANTIALLY FLUID TIGHT ELECTROLYTE (SEPARATOR) SEPARATING SAID FIRST AND SECOND ELECTRODES, SAID ELECTROLYTE (SEPARATOR) BEING FURTHER CHARACTERIZED AS PASSING IONS FORMED FROM THE METAL COMPRISING THE FIRST ELECTRODE, THE IMPROVEMENT WHICH COMPRISES PROVIDING SAID ELECTROLYTE (SEPARATOR) IN THE FORM OF FINE HOLLOW FIBERS, SAID FIBERS HAVING AN OUTSIDE DIAMETER/WALL THICKNESS RATIO OF AT LEAST 3, RANGING IN OUTSIDE DIAMETER FROM ABOUT 20 TO 5000 MICRONS AND HAVING A WALL THICKNESS OF FROM ABOUT 5 TO ABOUT 1000 MICRONS.
Claim 2
Dependent Claim
96 words
IN A BATTERY CELL COMPRISING A FIRST OXIDIZABLE LIQUID METAL ELECTRODE, A SECOND FLUID REDUCIBLE ELECTRODE AND A SUBSTANTIALLY FLUID TIGHT ELECTROLYTE (SEPARATOR) SEPARATING SAID FIRST AND SECOND ELECTRODES, SAID ELECTROLYTE (SEPARATOR) BEING FURTHER CHARACTERIZED AS PASSING IONS FORMED FROM THE METAL COMPRISING THE FIRST ELECTRODE, THE IMPROVEMENT WHICH COMPRISES PROVIDING SAID ELECTROLYTE (SEPARATOR) IN THE FORM OF FINE HOLLOW FIBERS, SAID FIBERS HAVING AN OUTSIDE DIAMETER/WALL THICKNESS RATIO OF AT LEAST 3, RANGING IN OUTSIDE DIAMETER FROM ABOUT 20 TO 5000 MICRONS AND HAVING A WALL THICKNESS OF FROM ABOUT 5 TO ABOUT 1000 MICRONS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-03 | 1973-05-05 | 1973-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-03 | 1977-05-05 | 1977-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-03 | 1981-05-05 | 1981-11-04 | $7700.00 | Window Closed / Lapsed |