Non-gassing battery separator and method of production
Abstract
Abstract PRODUCTION OF INORGANIC POROUS SINTERED BATTERY SEPARATOR ESSENTIALLY ELIMINATING FORMATION OF GAS WHEN IN CONTACT WITH A ZINC ELECTRODE, AND PERMITTING LONG CYCLE LIFE OF A HIGH ENERGY DENSITY BATTERY SUCH AS A SILVER-ZINC BATTERY, PRODUCED ACCORDING TO ONE EMBODIMENT BYY INITIALLY FIRING A MIXTURE OF MAGNESIUM-BEARING MATERIAL, E.G., MGO, LEAD-BEARING MATERIAL, E.G., PBO, AND SILICA (SIO2), AT TEMPERATURE IN THE RANGE OF ABOUT 1,100 TO ABOUTT 1,550*C., TO PRODUCE A MAGNESIUM SILICATE-LEAD SILICATE COMPOSITION, GRANULATING AND COMPACTING SAID COMPOSITION INTO PLAQUES, AND SINTERING SAID COMPACTED PLAQUES AT TEMPERATURE RANGING FROM ABOUT 800 TO ABOUT 1,250*C., TO PRODUCE POROUS SINTERED SEPPARATOR MEMBERS, IN THE FORM OF A SINTERED COMPOSITION OR COMPOSITE OF MAGNESIUM SILICATE AND LEAD SILICATE, HAVING GOOD TRANSVERSE STRENGTH AND LOW RESISTIVITY.
Inventors
- 👤 J Smatko
Bibliographic Details
Claims Analysis
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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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |