US3567516A
Expired / Lapsed
US
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Electrical energy storage device containing a tellurium additive
Assignee: Standard Oil Co
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Filing: 1969-03-20
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Granted: 1971-03-02
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Expires: 1989-03-20
Abstract
Abstract THE CAPACITY OF AN ELECTRICAL ENERGY STORAGE DEVICE CONTAINING A HIGH SURFACE AREA CARBON CATHODE, A METALLIC ANODE, AND A FUSED SALT ELECTROLYTE IN CONTACT WITH THE ELECTRODES, CAN BE GREATLY ENHANCED BY THE ADDITION OF A TELLURIUM COMPOUND DIRECTLY TO THE ELECTROLYTE OR TO THE CARBON CATHODE. ON PASSAGE OF AN ELECTRIC CURRENT THROUGH THE SYSTEM, THE TELLURIUM BECOMES PERMANENTLY BONDED TO THE CARBON OF THE CATHODE THEREBY FORMING AN "ACTIVE" TELLURIUM SPECIES THAT MANIFESTS ITSELF AS A CHARACTERISTIC PLATEAU IN THE DISCHARGE PROFILE OF THE CELL.
Inventors
- 👤 Robert A Rightmire
- 👤 James L Benak
- 👤 Joseph E Metcalfe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:12
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01M10/39; H01M10/399; 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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |