US3395048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for making porous alkali metal electrodes
Assignee: Electrochimica Corp
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Filing: 1966-03-18
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Granted: 1968-07-30
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Expires: 1986-03-18
Abstract
No abstract record available.
Inventors
- 👤 Jack D Pavlovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:21
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/04; H01M4/0402; H01M4/0416; H01M4/043; H01M4/0433; H01M4/0483; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
207 words
A METHOD FOR MAKING A POWDER OF A METAL SELECTED FROM A GROUP CONSISTING OF LITHIUM, SODIUM, POTASSIUM, RUBIDIUM AND CESIUM FOR USE IN THE FABRICATION OF AN ANODIC ELECTRODE IN A GALVANIC CELL, COMPRISING THE STEPS OF: PROVIDING A ZONE HAVING AN ATMOSPHERE OF A GAS INERT TO SAID METALS; IMMERSING SAID METAL IN A QUANTITY OF LIQUID STATIONED WITHIN SAID ZONE, SAID LIQUID BEING CHEMICALLY NONREACTIVE WITH SAID METAL AND ADAPTED TO ACT AS A LUBRICANT THEREOF AND PROTECT THE METAL FROM CONTACT WITH GASEOUS IMPURITIES THAT MAY BE PRESENT IN SAID ZONE; GRINDING SAID METAL IN SAID LIQUID WITHIN SAID ZONE FOR AN INTERVAL OF TIME SUFFICIENT TO PULVERIZE THE METAL TO A POWDER HAVING A PREDETERMINED RANGE OF PARTICLE SIZE AND POLISHED BY SAID GRINDING TO HAVE CHEMICALLY REACTIVELY CLEAN SURFACES; WHEREBY SAID POWDER IS FUSIBLE AT RELATIVELY LOW TEMPERATURES AND PRESSURES TO FORM A POROUS, COHESIVE MASS OF PREDETERMINED SHAPE WITHOUT THE USE OF BINDERS, SAID COHESIVE MASS ADAPTABLE TO FORM THE ANODIC ELECTRODE OF A GALVANIC CELL; SEPARATING SAID POWDER AND THE PORTION OF SAID LIQUID ENTRAINED WITH THE POWDER WHILE IN SAID ZONE; AND DRYING SAID POWDER IN AN INERT ATMOSPHERE TO DRIVE OFF ANY LIQUID ENTRAINED WITH THE POWDER.
Claim 2
Independent Claim
207 words
A METHOD FOR MAKING A POWDER OF A METAL SELECTED FROM A GROUP CONSISTING OF LITHIUM, SODIUM, POTASSIUM, RUBIDIUM AND CESIUM FOR USE IN THE FABRICATION OF AN ANODIC ELECTRODE IN A GALVANIC CELL, COMPRISING THE STEPS OF: PROVIDING A ZONE HAVING AN ATMOSPHERE OF A GAS INERT TO SAID METALS; IMMERSING SAID METAL IN A QUANTITY OF LIQUID STATIONED WITHIN SAID ZONE, SAID LIQUID BEING CHEMICALLY NONREACTIVE WITH SAID METAL AND ADAPTED TO ACT AS A LUBRICANT THEREOF AND PROTECT THE METAL FROM CONTACT WITH GASEOUS IMPURITIES THAT MAY BE PRESENT IN SAID ZONE; GRINDING SAID METAL IN SAID LIQUID WITHIN SAID ZONE FOR AN INTERVAL OF TIME SUFFICIENT TO PULVERIZE THE METAL TO A POWDER HAVING A PREDETERMINED RANGE OF PARTICLE SIZE AND POLISHED BY SAID GRINDING TO HAVE CHEMICALLY REACTIVELY CLEAN SURFACES; WHEREBY SAID POWDER IS FUSIBLE AT RELATIVELY LOW TEMPERATURES AND PRESSURES TO FORM A POROUS, COHESIVE MASS OF PREDETERMINED SHAPE WITHOUT THE USE OF BINDERS, SAID COHESIVE MASS ADAPTABLE TO FORM THE ANODIC ELECTRODE OF A GALVANIC CELL; SEPARATING SAID POWDER AND THE PORTION OF SAID LIQUID ENTRAINED WITH THE POWDER WHILE IN SAID ZONE; AND DRYING SAID POWDER IN AN INERT ATMOSPHERE TO DRIVE OFF ANY LIQUID ENTRAINED WITH THE POWDER.
References Cited (Backward Citations)
US1569484A
Cited
US3043896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |