US3989538A
Expired / Lapsed
US
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Sealed lithium-reducible gas cell
Assignee: RIVERDALE CHEMICAL COMPANY A CORP OF IL
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Filing: 1975-03-19
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Granted: 1976-11-02
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Expires: 1995-03-19
Abstract
Abstract A sealed lithium-reducible gas cell is described which comprises a casing, an anode positioned within the casing, the anode selected from the class consisting of lithium, lithium as an amalgam, and lithium in a non-aqueous electrolyte, a cathode positioned within the casing, the cathode consisting of a reducible gas in a non-aqueous electrolyte with an ionic conductivity enhancing material, and a solid lithium-sodium aluminate electrolyte positioned within the casing between the anode and cathode and in contact with both the anode and cathode, the solid lithium-sodium aluminate electrolyte having an approximate composition of LiNaO.sup.. 9Al 2 O 3 of which 1.3 to 85% of the total alkali ion content is lithium.
Inventors
- 👤 Walter L. Roth
- 👤 Gregory C. Farrington
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:09
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; C; C04; C04B; C04B35/00; C04B35/01; C04B35/10; C04B35/111; C04B35/113; H01M6/00; H01M6/14; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
106 words
A sealed lithium-reducible gas cell comprises a casing, an anode positioned within the casing, the anode selected from the class consisting of lithium, lithium as an amalgam and lithium in a non-aqueous electrolyte, a cathode positioned within the casing, the cathode comprising a reducible gas in a non-aqueous solvent with an ionic conductivity enhancing material, and a solid lithium-sodium aluminate electrolyte positioned within the casing between the anode and cathode and in contact with both the anode and cathode, the solid lithium-sodium aluminate electrolyte having an approximate composition of LiNaO.9Al 2 O 3 of which 1.3 to 85% of the total alkali ion content is lithium.
Claim 2
Dependent Claim
106 words
A sealed lithium-reducible gas cell comprises a casing, an anode positioned within the casing, the anode selected from the class consisting of lithium, lithium as an amalgam and lithium in a non-aqueous electrolyte, a cathode positioned within the casing, the cathode comprising a reducible gas in a non-aqueous solvent with an ionic conductivity enhancing material, and a solid lithium-sodium aluminate electrolyte positioned within the casing between the anode and cathode and in contact with both the anode and cathode, the solid lithium-sodium aluminate electrolyte having an approximate composition of LiNaO.9Al 2 O 3 of which 1.3 to 85% of the total alkali ion content is lithium.
Claim 3
Dependent Claim
28 words
A sealed lithium-reducible gas cell as in claim 1, in which 40 to 60% of the total alkali ion content of the solid lithium-sodium electrolyte composition is lithium.
Claim 4
Dependent Claim
28 words
A sealed lithium reducible gas cell as in claim 1, in which 50% of the total alkali ion content of the solid lithium-sodium aluminate electrolyte composition is lithium.
Claim 5
Dependent Claim
29 words
A sealed lithium-reducible gas cell as in claim 1, in which the cathode is sulfur dioxide present as a solution in propylene carbonate containing LiClO 4 and tetrabutylammonium tetrafluoroborate.
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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |