US4243624A
Expired / Lapsed
US
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Method of making cathodes derived from ammonium-metal-chalcogen compounds
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1979-05-21
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Granted: 1981-01-06
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Expires: 1999-05-21
Abstract
Abstract The present invention is directed to a method of making a cathode, comprising: (a) forming cathode structure of a predetermined shape with a mixture comprising: (i) about 50 to about 100% by weight of one or more ammonium metal chalcogen compounds and complexes, wherein said metal is selected from the group consisting of Ti, V, Cr, Mn, Fe, Nb, Mo, Ta, and W, and wherein said chalcogen is selected from the group consisting of O, S, and Se; and (ii) about 50 to about 0% by weight of a binder; and (b) thermally decomposing and thereby activating said cathode structure at a temperature of about 200° to about 500° C. in a non-oxidizing atmosphere.
Inventors
- 👤 Allan J. Jacobson
- 👤 Russell R. Chianelli
- 👤 M. Stanley Whittingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:01
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; H01M4/48; H01M4/483; H01M4/485; H01M4/50; H01M4/505; H01M4/52; H01M4/525; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
108 words
A method of making a cathode, comprising: (a) forming cathode structure of a predetermined shape with a mixture comprising: (i) about 50 to about 100% by weight of one or more ammonium metal chalcogen compounds and complexes, wherein said metal is selected from the group consisting of Ti, V, Cr, Mn, Fe, Nb, Mo, Ta, and W, and wherein said chalcogen is selected from the group consisting of O, S, and Se; and (ii) about 50 to about 0% by weight of a binder; and (b) thermally decomposing and thereby activating said cathode structure at a temperature of about 200° to about 500° C. in a non-oxidizing atmosphere.
Claim 2
Independent Claim
108 words
A method of making a cathode, comprising: (a) forming cathode structure of a predetermined shape with a mixture comprising: (i) about 50 to about 100% by weight of one or more ammonium metal chalcogen compounds and complexes, wherein said metal is selected from the group consisting of Ti, V, Cr, Mn, Fe, Nb, Mo, Ta, and W, and wherein said chalcogen is selected from the group consisting of O, S, and Se; and (ii) about 50 to about 0% by weight of a binder; and (b) thermally decomposing and thereby activating said cathode structure at a temperature of about 200° to about 500° C. in a non-oxidizing atmosphere.
Claim 3
Dependent Claim
27 words
The method of claim 1 wherein said ammonium metal chalcogen compounds and complexes are selected from the group consisting of Ti, V, Cr, Mn, Mo, and Nb.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein said thermal decomposition temperature is about 250° to about 400° C.
Claim 5
Dependent Claim
16 words
The method of claim 1, 2, or 3 wherein said non-oxidizing atmosphere is an inert atmosphere.
Claim 6
Dependent Claim
16 words
The method of claim 1, 2, or 3 wherein said non-oxidizing atmosphere is a reducing atmosphere.
Claim 7
Dependent Claim
27 words
The method of claim 4 or 5 wherein said ammonium metal chalcogen compounds and complexes are selected from the group consisting of V, Cr, Mn, and Mo.
Claim 8
Dependent Claim
30 words
The method of claim 1 wherein about 70 to about 100% by weight of said compounds and complexes, and about 30 to about 0% by weight of binder, are employed.
Claim 9
Dependent Claim
27 words
The method of claim 7 wherein said ammonium metal chalcogen compounds and complexes are selected from the group consisting of Ti, V, Cr, Mn, Mo, and Nb.
Claim 10
Dependent Claim
17 words
The method of claim 7 wherein said thermal decomposition temperature is about 250° to about 400° C.
Claim 11
Dependent Claim
16 words
The method of claim 7, 8, or 9 wherein said non-oxidizing atmosphere is an inert atmosphere.
Claim 12
Dependent Claim
16 words
The method of claim 7, 8, or 9 wherein said non-oxidizing atmosphere is a reducing atmosphere.
Claim 13
Dependent Claim
27 words
The method of claim 10 or 11 wherein said ammonium metal chalcogen compounds and complexes are selected from the group consisting of V, Cr, Mn and Mo.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |