US3976505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed lithium-bromine cell
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1975-06-23
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Granted: 1976-08-24
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Expires: 1995-06-23
Abstract
Abstract A sealed lithium-bromine 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 comprising bromine 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
- 👤 Gregory C. Farrington
- 👤 Walter L. Roth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:56
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; C; C04; C04B; C04B35/00; C04B35/01; C04B35/10; C04B35/111; C04B35/113
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
91 words
A sealed lithium-bromine 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 bromine with an ionic conductive enhancing material, and a solid lithium-sodium aluminate electrolyte positioned within the casing between the anode and cathode, the solid lithium-sodium aluminate electrolyte having an approximate composition of LiNaO.9Al.sub. 2 O 3 of which 1.3 to 85.0 percent of the total alkali ion content is lithium.
Claim 2
Dependent Claim
91 words
A sealed lithium-bromine 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 bromine with an ionic conductive enhancing material, and a solid lithium-sodium aluminate electrolyte positioned within the casing between the anode and cathode, the solid lithium-sodium aluminate electrolyte having an approximate composition of LiNaO.9Al.sub. 2 O 3 of which 1.3 to 85.0 percent of the total alkali ion content is lithium.
Claim 3
Dependent Claim
21 words
A sealed lithium-bromium cell as in claim 1, in which 40 to 60 percent of the total alkali content is lithium.
Claim 4
Dependent Claim
26 words
A sealed lithium-bromine cell as in claim 1, in which 50 percent of the total alkali content of the solid lithium-sodium aluminate electrolyte composition is lithium.
Claim 5
Dependent Claim
36 words
A sealed lithium-bromine cell as in claim 1, in which the cathode and the anode each include a non-aqueous electrolyte of propylene carbonate containing lithium perchlorate with 0.1M tetrabutylammonium fluoroborate and saturated with LiClO 4 .
References Cited (Backward Citations)
US3849200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |