US4009323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage battery comprising positive electrode of a graphite and lithium fluoride compound
Assignee: United States Department of the Navy
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Filing: 1975-05-12
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Granted: 1977-02-22
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Expires: 1995-05-12
Abstract
Abstract A positive electrode of a storage battery is formed by applying an electrical charge through a non-aqueous lithium perchlorate solution to an electrode formed of powdered "Madagascar"-type graphite and lithium fluoride.
Inventors
- 👤 Douglas N. Bennion
- 👤 Ranna K. Hebbar
- 👤 Sanjay L. Deshpande
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:53
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M4/00; H01M4/02; H01M4/36; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
36 words
A sealably-enclosed storage battery system comprising: a negative electrode, formed of lithium, a positive electrode formed of a graphite and lithium fluoride compound, and an electrolyte solution formed of non-aqueous aprotic solvent and a lithium salt.
Claim 2
Dependent Claim
36 words
A sealably-enclosed storage battery system comprising: a negative electrode, formed of lithium, a positive electrode formed of a graphite and lithium fluoride compound, and an electrolyte solution formed of non-aqueous aprotic solvent and a lithium salt.
Claim 3
Dependent Claim
17 words
The system of claim 1 wherein said electrolytic solution is formed of lithium perchlorate dissolved in dimethysulfite.
Claim 4
Dependent Claim
15 words
The system of claim 9 further including: a moisture-free cation-exchange membrane disposed between said electrodes.
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) | 1980-02-22 | 1980-08-23 | 1981-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-22 | 1984-08-23 | 1985-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-22 | 1988-08-23 | 1989-02-22 | $7700.00 | Window Closed / Lapsed |