US4107404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of LiAsF6 /dimethyl sulfite electrolyte solution
Assignee: United States Department of the Army
•
Filing: 1977-09-15
•
Granted: 1978-08-15
•
Expires: 1997-09-15
Abstract
Abstract LiAsF 6 /dimethyl sulfite electrolyte solutions of improved storage sility are obtained by incorporating metallic lithium therein.
Inventors
- 👤 Robert J. Horning
- 👤 Walter B. Ebner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:55
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/168
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
A process for stabilizing an electrolyte consisting essentially of a solution of lithium hexafluoroarsenate in dimethyl sulfite prior to contact with an anode and a cathode to produce an electrochemical cell, which comprises incorporating therein lithium metal in an effective amount to increase the storage stability of said solution.
Claim 2
Dependent Claim
49 words
A process for stabilizing an electrolyte consisting essentially of a solution of lithium hexafluoroarsenate in dimethyl sulfite prior to contact with an anode and a cathode to produce an electrochemical cell, which comprises incorporating therein lithium metal in an effective amount to increase the storage stability of said solution.
Claim 3
Dependent Claim
22 words
A process according to claim 1, wherein the amount of lithium metal is at least 0.1 milligram per milliliter of the solution.
Claim 4
Dependent Claim
24 words
A process according to claim 2, wherein the concentration of the solution is within the range about from 0.5 to 2 molar lithium hexaflouroarsenate.
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) | 1981-08-14 | 1982-02-13 | 1982-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-08-14 | 1986-02-13 | 1986-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-08-14 | 1990-02-13 | 1990-08-15 | $7700.00 | Window Closed / Lapsed |