US4983476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable lithium battery system
Assignee: United States Department of the Army
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Filing: 1990-06-18
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Granted: 1991-01-08
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Expires: 2010-06-18
Abstract
Abstract A new rechargeable lithium battery system is provided that contains no melic lithium; the system including a transition metal sulfide anode, a lithiated transition metal oxide cathode, and a solution of a lithium salt in an aprotic organic solvent as the electrolte.
Inventors
- 👤 Steven M. Slane
- 👤 Edward J. Plichta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:22
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; H01M4/00; H01M4/02; H01M4/13; H01M4/136; H01M4/36; H01M4/48; H01M4/50; H01M4/502; H01M4/58; H01M4/581; H01M4/5815; H01M4/131; H01M4/485; H01M4/505; H01M4/52; H01M4/525; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
39 words
A rechargeable lithium battery system that contains no metallic lithium said system comprising a transition metal sulfide anode, a lithiated transition metal oxide cathode, and a solution of a lithium salt in an aprotic organic solvent as the electrolyte.
Claim 2
Dependent Claim
39 words
A rechargeable lithium battery system that contains no metallic lithium said system comprising a transition metal sulfide anode, a lithiated transition metal oxide cathode, and a solution of a lithium salt in an aprotic organic solvent as the electrolyte.
Claim 3
Dependent Claim
48 words
A rechargeable lithium battery system according to claim 1 wherein the transition metal sulfide anode is selected from the group consisting of TiS 2 , VS 2 , CdS 2 NbS 2 , CrS 2 , MoS 2 , WS 2 , FeS 2 and NiS 2 .
Claim 4
Dependent Claim
18 words
A rechargeable lithium battery system according to claim 2 wherein the transition metal sulfide is TiS 2 .
Claim 5
Dependent Claim
36 words
A rechargeable lithium battery system according to claim 1 wherein the lithiated transition metal oxide cathode is selected from the group consisting of LiCoO 2 , LiFeO 2 , LiMnO 2 , and LiCrO 2 .
Claim 6
Dependent Claim
20 words
A rechargeable lithium battery system according to claim 4 wherein the lithiated transition metal oxide cathode is LiCoO 2 .
Claim 7
Dependent Claim
36 words
A rechargeable lithium battery system according to claim 1 wherein the lithium salt in the electrolyte is selected from the group consisting of LiAlCl 4 , LiClO 4 , LiBF 4 , and LiAsF 6 .
Claim 8
Dependent Claim
20 words
A rechargeable lithium battery system according to claim 6 wherein the lithium salt in the electrolyte is LiAsF 6 .
Claim 9
Dependent Claim
41 words
A rechargeable lithium battery system according to claim 1 wherein the aprotic organic solvent of the electrolyte is selected from the group consisting of an ether solvent, a mixture of ether solvents, an ester solvent, and a mixture of ester solvents.
Claim 10
Dependent Claim
36 words
A rechargeable lithium battery system according to claim 8 wherein the aprotic organic solvent is selected from the group consisting of methyl acetate, methyl formate, propylene carbonate, dimethyl carbonate, diethyl carbonate, dimethoxyethane, tetrahydrafuran and mixtures thereof.
Claim 11
Dependent Claim
17 words
A rechargeable lithium battery system according to claim 9 wherein the aprotic organic solvent is methyl acetate.
Claim 12
Dependent Claim
39 words
A rechargeable lithium battery system that contains no metallic lithium, said system comprising TiS 2 as the anode, LlCoO 2 as the cathode, and a solution of 1.56 mol dm -3 LiAsF 6 in methyl acetate as the electrolyte.
Claim 13
Dependent Claim
39 words
A rechargeable lithium battery system that contains no metallic lithium, said system comprising TiS 2 as the anode, LlCoO 2 as the cathode, and a solution of 1.56 mol dm -3 LiAsF 6 in methyl acetate as the electrolyte.
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) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |