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US4331750A
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Alkaline cation conductive vitreous composition and a method of preparing such a composition
Assignee: Gipelec SA
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Filing: 1981-01-19
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Granted: 1982-05-25
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Expires: 2001-01-19
Abstract
Abstract A cation conductive vitreous alkaline composition and a method of preparing such a composition. The composition corresponds to a formula of aP 2 S 5 , bLi 2 S, cLiX, where: X represents chlorine, bromine or iodine; c is greater than or equal to 0; the ratio b/(a+b) lies between 0.61 and 0.70; and the ratio c/(a+b+c) is less than or equal to a limit which corresponds to solubility in the vitreous phase of LiX in the composition aP 2 S 5 , bLi 2 S.
Inventors
- 👤 Jean-Pierre Malugani
- 👤 Guy Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:37
CPC Classifications
C; C03; C03C; C03C3/00; C03C3/32; C03C3/321; C03C4/00; C03C4/18; H; H01; H01M; H01M6/00; H01M6/14; H01M6/18
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
98 words
A cation conductive solid electrolyte for an electrochemical generator, the electrolyte being a vitreous composition of general formula aP 2 S 5 , bLi 2 S, cLiX, where X is an element chosen from the group consisting of chlorine, bromine and iodine and where a, b and c are numbers chosen so that the ratio b/(a+b) lies in the range 0.61 to 0.70 and the ratio c/(a+b+c) is less than or equal to a limit value corresponding to the maximum solubility in the vitreous phase of LiX in the composition aP 2 S 5 , bLi 2 S.
Claim 2
Dependent Claim
98 words
A cation conductive solid electrolyte for an electrochemical generator, the electrolyte being a vitreous composition of general formula aP 2 S 5 , bLi 2 S, cLiX, where X is an element chosen from the group consisting of chlorine, bromine and iodine and where a, b and c are numbers chosen so that the ratio b/(a+b) lies in the range 0.61 to 0.70 and the ratio c/(a+b+c) is less than or equal to a limit value corresponding to the maximum solubility in the vitreous phase of LiX in the composition aP 2 S 5 , bLi 2 S.
Claim 3
Dependent Claim
16 words
A compound according to claim 1, wherein X is bromine and said limit value is 0.20.
Claim 4
Dependent Claim
16 words
A compound according to claim 1, wherein X is iodine and said limit value is 0.50.
Claim 5
Dependent Claim
140 words
An electrochemical generator comprising: a negative electrode in which the active material is lithium; a positive electrode in which the active material is selected from the group consisting of MoO 3 , WO 3 , TiS 2 , NiPS 3 , a bismuthate of copper, and a bismuthate of lead; and an electrolyte which is a cation conductive vitreous composition of general formula aP 2 S 5 .bLi 2 S.cLiX, where X is an element chosen from the group consisting of chlorine, bromine, and iodine and where a, b, and c are numbers chosen so that the ratio b/(a+b) lies in the range 0.61 to 0.70 and the ratio c/(a+b+c) is less than or equal to the limit value corresponding to the maximum solubility in the vitreous phase of LiX in the composition aP 2 S 5 .bLi 2 S.
Claim 6
Dependent Claim
140 words
An electrochemical generator comprising: a negative electrode in which the active material is lithium; a positive electrode in which the active material is selected from the group consisting of MoO 3 , WO 3 , TiS 2 , NiPS 3 , a bismuthate of copper, and a bismuthate of lead; and an electrolyte which is a cation conductive vitreous composition of general formula aP 2 S 5 .bLi 2 S.cLiX, where X is an element chosen from the group consisting of chlorine, bromine, and iodine and where a, b, and c are numbers chosen so that the ratio b/(a+b) lies in the range 0.61 to 0.70 and the ratio c/(a+b+c) is less than or equal to the limit value corresponding to the maximum solubility in the vitreous phase of LiX in the composition aP 2 S 5 .bLi 2 S.
Claim 7
Dependent Claim
17 words
An electrochemical generator according to claim 4, wherein X is bromine and said limit value is 0.20.
Claim 8
Dependent Claim
17 words
An electrochemical generator according to claim 4, wherein X is iodine and said limit value is 0.50.
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) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |