US3933688A
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Method for lithiating metal chalcogenides and intercalated products thereof
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1974-09-30
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Granted: 1976-01-20
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Expires: 1994-09-30
Abstract
Abstract Metal chalcogenides having the general formula MZ y wherein Z is S, Se and Te; M is an element from Group IVB, VB, Mo, W, Tc, Pt, Re, Ge, Sn and Pb and y is 1.0 to 4.0 are lithiated by lithium compounds selected from LiR 1 , LiC(R 1 ) 3 , LiN(R 1 ) 2 , LiBH(R 1 ) 3 , LiR 1 .R 2 and LiAlH 4 .R 2 wherein R 1 is a hydrocarbon radical of 1 to 8 carbon atoms and R 2 is a chelating polyamine. Novel intercalated compounds of the formula Li x MZ y are formed wherein M is a Group VB element, Hf, Ti and Zr; Z is S and Se, provided that Z is Se when M is vanadium; y is 1.67 to 2.02 and x is between 0.8 and 1.2.
Inventors
- 👤 Martin B. Dines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:18
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; C; C01; C01B; C01B19/00; C01B19/007; C01G; C01G1/00; C01G1/12; C01P; C01P2004/00; C01P2004/01; C01P2004/04; C01P2006/00; C01P2006/80; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
157 words
A method of lithiating metal chalcogenides of the formula MZ y wherein: y M is an element selected from Group IVB, Group VB elements of the Periodic Table of the Elements, molybdenum, tungsten, technetium, platinum, rhenium, germanium, tin and lead; y is a numerical value between about 1.0 and about 4.0; and Z is an element selected from the group consisting of sulfur, selenium and tellurium, provided that when M is vanadium and y is 2, Z is selected from selenium and tellurium only; comprising adding at least a stoichrometric amount of a lithium compound to said metal chalcogenide, said lithium compound being selected from the group consisting of LiR 1 , LiC(R 1 ) 3 , LiN(R 1 ) 2 , LiBH(R 1 ) 3 , LiR 1 .R 3 and LiAlH 4 .R 2 wherein: R 1 is a hydrocarbon radical having from 1 to 8 carbon atoms and R 2 is a chelating polyamine.
Claim 2
Independent Claim
157 words
A method of lithiating metal chalcogenides of the formula MZ y wherein: y M is an element selected from Group IVB, Group VB elements of the Periodic Table of the Elements, molybdenum, tungsten, technetium, platinum, rhenium, germanium, tin and lead; y is a numerical value between about 1.0 and about 4.0; and Z is an element selected from the group consisting of sulfur, selenium and tellurium, provided that when M is vanadium and y is 2, Z is selected from selenium and tellurium only; comprising adding at least a stoichrometric amount of a lithium compound to said metal chalcogenide, said lithium compound being selected from the group consisting of LiR 1 , LiC(R 1 ) 3 , LiN(R 1 ) 2 , LiBH(R 1 ) 3 , LiR 1 .R 3 and LiAlH 4 .R 2 wherein: R 1 is a hydrocarbon radical having from 1 to 8 carbon atoms and R 2 is a chelating polyamine.
Claim 3
Dependent Claim
25 words
The method of claim 1 wherein said lithium compound is added to said metal chalcogenide at a temperature ranging from about -100°C. to about 100°C.
Claim 4
Dependent Claim
12 words
The method of claim 1 wherein said lithium compound is n-butyl lithium.
Claim 5
Dependent Claim
29 words
The method of claim 1 wherein M is selected from Ti and Ta; Z is selected from S and Se; and y is between about 1.67 and about 2.02.
Claim 6
Dependent Claim
16 words
The method of claim 1 wherein said chelating polyamine is selected from tetramethylethylene-diamine and pentamethyldiethylene triamine.
Claim 7
Dependent Claim
53 words
A lithium intercalated metal chalcogenide having the formula Li x MZ y wherein: M is selected from Group VB elements, Ti, Hf and Zr; Z is selected from S and Se, provided that when M is vanadium Z is Se; y is between 1.67 and 2.02; and x is between 0.8 and 1.2.
Claim 8
Dependent Claim
53 words
A lithium intercalated metal chalcogenide having the formula Li x MZ y wherein: M is selected from Group VB elements, Ti, Hf and Zr; Z is selected from S and Se, provided that when M is vanadium Z is Se; y is between 1.67 and 2.02; and x is between 0.8 and 1.2.
Claim 9
Dependent Claim
15 words
The lithium intercalated metal chalcogenide of claim 6 wherein x is between 0.9 and 1.1.
Claim 10
Dependent Claim
23 words
The lithium intercalated metal chalcogenide of claim 6 wherein M is Ti; Z is S and said chalcogenide is free of nitrogen contaminants.
Claim 11
Dependent Claim
16 words
The lithium intercalated metal chalcogenide of claim 6 wherein M is Ta and Z is S.
References Cited (Backward Citations)
US3791867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-19 | 1979-07-21 | 1980-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-19 | 1983-07-21 | 1984-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-19 | 1987-07-21 | 1988-01-20 | $7700.00 | Window Closed / Lapsed |