US4432891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass capable of ionic conduction and method of preparation
Assignee: United States Department of Energy
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Filing: 1982-05-06
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Granted: 1984-02-21
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Expires: 2002-05-06
Abstract
Abstract Sulfide glasses capable of conducting alkali metal ions are prepared from a nonmetal glass former such as GeS 2 , B 2 S 3 and SiS 2 in mixture with a glass modifier such as Na 2 S or another alkali metal sulfide. A molten mixture of the constituents is rapidly quenched to below the glass transition temperature by contact with a metal mold. The rapid quench is sufficient to prevent crystallization and permit solidification as an amorphous solid mixture. An oxygen-free atmosphere is maintained over the mixture to prevent oxidation. A new glass system of (1-X) Na 2 O:XB 2 S 3 is disclosed.
Inventors
- 👤 Sherman Susman
- 👤 Charles J. Delbecq
- 👤 Kenneth J. Volin
- 👤 Leah Boehm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:42
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; C; C03; C03C; C03C3/00; C03C3/32; C03C3/321; C03C4/00; C03C4/18; H01M10/00; H01M10/36; H01M10/39; H01M10/3909; H01M10/3918; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
25 words
An electrically conductive glass consisting essentially of an amorphous mixture of (1-X)Na 2 S:X B 2 S 3 wherein X is about 0.5 to 0.7.
Claim 2
Dependent Claim
25 words
An electrically conductive glass consisting essentially of an amorphous mixture of (1-X)Na 2 S:X B 2 S 3 wherein X is about 0.5 to 0.7.
Claim 3
Dependent Claim
53 words
An electrically conductive glass consisting essentially of an amorphous mixture of (1-X)Na 2 S:B 2 S 3 wherein X is about 0.5 mole fraction, said glass being capable in solid state of conducting sodium ions, said glass having a transition temperature of about 200° C., and a melting temperature of about 500° C.
Claim 4
Dependent Claim
53 words
An electrically conductive glass consisting essentially of an amorphous mixture of (1-X)Na 2 S:B 2 S 3 wherein X is about 0.5 mole fraction, said glass being capable in solid state of conducting sodium ions, said glass having a transition temperature of about 200° C., and a melting temperature of about 500° C.
References Cited (Backward Citations)
US4208474A
Cited
EP0036105A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-02-20 | 1987-08-22 | 1988-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-02-20 | 1991-08-22 | 1992-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-02-20 | 1995-08-22 | 1996-02-21 | $7700.00 | Window Closed / Lapsed |