US3864167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-aqueous battery using chalcogenide electrode
Assignee: AT&T Inc
•
Filing: 1973-04-19
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Granted: 1975-02-04
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Expires: 1993-04-19
Abstract
Abstract A particular class of transition-metal chalcogenides which have a fibrous structure are found to exhibit particularly desirable secondary battery characteristics. Fibrous structure is retained on discharge and charge which contributes to the maintenance of large energy densities after extensive recycling.
Inventors
- 👤 John Broadhead
- 👤 Salvo Jr Francis Joseph Di
- 👤 Forrest A Trumbore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:14
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M10/36; H01M10/39; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
99 words
A NON-AQUEOUS SECONDARY POWER SUPPLY COMPRISING AT LEAST ONE CELL, SAID CELL COMPRISING AN ELECTROLYTE, NEGATIVE ELECTRODE WITH ACTIVE NEGATIVE ELECTRODE MATERIAL AND POSITIVE ELECTRODE WITH ACTIVE POSITIVE ELECTRODE MATERIAL, CHARACTERIZED IN THAT THE SAID ACTIVE POSITIVE ELECTRODE MATERIAL CONSISTS ESSENTIALLY OF A TRANSITION-METAL CHALCOGENIDE SELECTED FROM THE GROUP CONSISTING OF NIOBIUM TRISELENIDE, TANTALUM TRISULFIDE, TITANIUM TRISULFIDE, NIOBIUM TRISULFIDE, AND TANTALUM TRISELENIDE AND SAID ACTIVE POSITIVE ELECTRODE MATERIAL HAS A FIBROUS STRUCTURE WHICH PERSISTS IN BOTH CHARGED AND DISCHARGED STATE IN WHICH THE FIBERS ARE AT LEAST 1 MICRON IN LENGTH AND HAVE ASPECT RATIOS FROM 5:1 TO 1000:1.
Claim 2
Dependent Claim
99 words
A NON-AQUEOUS SECONDARY POWER SUPPLY COMPRISING AT LEAST ONE CELL, SAID CELL COMPRISING AN ELECTROLYTE, NEGATIVE ELECTRODE WITH ACTIVE NEGATIVE ELECTRODE MATERIAL AND POSITIVE ELECTRODE WITH ACTIVE POSITIVE ELECTRODE MATERIAL, CHARACTERIZED IN THAT THE SAID ACTIVE POSITIVE ELECTRODE MATERIAL CONSISTS ESSENTIALLY OF A TRANSITION-METAL CHALCOGENIDE SELECTED FROM THE GROUP CONSISTING OF NIOBIUM TRISELENIDE, TANTALUM TRISULFIDE, TITANIUM TRISULFIDE, NIOBIUM TRISULFIDE, AND TANTALUM TRISELENIDE AND SAID ACTIVE POSITIVE ELECTRODE MATERIAL HAS A FIBROUS STRUCTURE WHICH PERSISTS IN BOTH CHARGED AND DISCHARGED STATE IN WHICH THE FIBERS ARE AT LEAST 1 MICRON IN LENGTH AND HAVE ASPECT RATIOS FROM 5:1 TO 1000:1.
Claim 3
Dependent Claim
17 words
The power supply of claim 1 in which the active negative electrode material consists essentially of lithium.
Claim 4
Dependent Claim
17 words
The power supply of claim 1 in which the active negative electrode material consists essentially of sodium.
Claim 5
Dependent Claim
17 words
The power supply of claim 1 in which the active negative electrode material consists essentially of magnesium.
Claim 6
Dependent Claim
18 words
The power supply of claim 1 in which the electrolyte consists essentially of LiClO4 dissolved in propylene carbonate.
Claim 7
Dependent Claim
16 words
The power supply of claim 1 in which the electrolyte consists essentially of a molten salt.
Claim 8
Dependent Claim
44 words
The power supply of claim 1 in which the active positive electrode material consists essentially of niobium triselenide, the active negative electrode material consists essentially of lithium and the electrolyte consists essentially of LiClO4 dissolved in propylene carbonate with (Li)2Se dissolved in the electrolyte.
References Cited (Backward Citations)
US3476601A
Cited
US3508967A
Cited
US3730771A
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US3685983A
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US3639174A
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US3681144A
Cited
US3773558A
Cited
US3772083A
Cited
US3791867A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |