US3887397A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Highly conductive stable electrolyte for lithium batteries
Assignee: Northrop Grumman Innovation Systems LLC
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Filing: 1974-01-02
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Granted: 1975-06-03
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Expires: 1994-01-02
Abstract
Abstract The use of LiBF4 to stabilize high energy Lithium batteries having an electrolyte of methyl formate and LiAsF6.
Inventors
- 👤 Robert J Horning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:34
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
38 words
In a current producing cell having a Lithium anode, an electrolyte of methyl formate having LiAsF6 dissolved therein and a cathode inert to said electrolyte, the improvement comprising: a minor portion of LiBF4 dissolved in said methyl formate.
Claim 2
Dependent Claim
38 words
In a current producing cell having a Lithium anode, an electrolyte of methyl formate having LiAsF6 dissolved therein and a cathode inert to said electrolyte, the improvement comprising: a minor portion of LiBF4 dissolved in said methyl formate.
Claim 3
Dependent Claim
38 words
IN A CURRENT PRODUCING CELL HAVING A LITHIUM ANODE, AN ELECTROLYTE OF METHYL FORMATE HAVING LIASF6 DISSOLVED THEREIN AND A CATHODE INERT TO SAID ELECTROLYTE, THE IMPROVEMENT COMPRISING: A MINOR PORTION OF LIBF4 DISSOLVED IN SAID METHYL FORMATE.
Claim 4
Dependent Claim
38 words
IN A CURRENT PRODUCING CELL HAVING A LITHIUM ANODE, AN ELECTROLYTE OF METHYL FORMATE HAVING LIASF6 DISSOLVED THEREIN AND A CATHODE INERT TO SAID ELECTROLYTE, THE IMPROVEMENT COMPRISING: A MINOR PORTION OF LIBF4 DISSOLVED IN SAID METHYL FORMATE.
Claim 5
Dependent Claim
17 words
The cell of claim 1 wherein the amount of LiBF4 ranges from 0.05 molar to 0.8 molar.
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) | 1978-06-02 | 1978-12-02 | 1979-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-02 | 1982-12-02 | 1983-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-02 | 1986-12-02 | 1987-06-03 | $7700.00 | Window Closed / Lapsed |