US3988164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode material for solid state batteries
Assignee: Duracell Inc USA
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Filing: 1974-04-25
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Granted: 1976-10-26
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Expires: 1994-04-25
Abstract
Abstract Solid electrolyte cells comprising high-potential electrochemical anodes, solid electrolytes and metal chalcogenides selected from the group consisting of sulfides, selenides and tellurides as active cathode material.
Inventors
- 👤 C. C. Liang
- 👤 L. H. Barnette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:18
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
49 words
A solid state electrochemical cell comprising an anode which is a metal above hydrogen in the electromotive series, a solid electrolyte chemically compatible with said anode, and a cathode comprising one or more metal chalcogenides as cathode active material, said cell being adapted to be operable at room temperature.
Claim 2
Dependent Claim
49 words
A solid state electrochemical cell comprising an anode which is a metal above hydrogen in the electromotive series, a solid electrolyte chemically compatible with said anode, and a cathode comprising one or more metal chalcogenides as cathode active material, said cell being adapted to be operable at room temperature.
Claim 3
Dependent Claim
36 words
The cell according to claim 1 wherein said chalcogenides are selected from the sulfides, selenides and tellurides of metals selected from the group consisting of lead, silver, copper, tin, arsenic, antimony, iron, nickel, molybdenum and bismuth.
Claim 4
Dependent Claim
39 words
The cell according to claim 2 wherein the metal sulfides are Ag 2 S, PbS, Cu 2 S, As 2 S 3 , Bi 2 S 3 , Sb 2 S 3 , MoS 2 and FeS 2 .
Claim 5
Dependent Claim
17 words
The cell according to claim 1 wherein cathode-active material is the sole electronic conductor of said cathode.
Claim 6
Dependent Claim
14 words
The cell according to claim 1 wherein said cathode includes a metallic electronic conductor.
Claim 7
Dependent Claim
18 words
The cell according to claim 1 wherein said solid electrolyte comprises lithium iodide, lithium hydroxide and aluminum oxide.
Claim 8
Dependent Claim
16 words
The cell according to claim 1 wherein said solid electrolyte comprises lithium iodide and aluminum oxide.
Claim 9
Dependent Claim
24 words
The cell according to claim 1 wherein said cathode includes and has dispersed therein solid electrolyte material in intimate contact with said cathode-active material.
Claim 10
Dependent Claim
11 words
A cell according to claim 1 wherein said anode is lithium.
Claim 11
Dependent Claim
11 words
A cell according to claim 6 wherein said anode is lithium.
References Cited (Backward Citations)
US3488221A
Cited
US3907600A
Cited
US3713897A
Cited
US3791867A
Cited
US3827910A
Cited
US3864167A
Cited
US3898096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-10-26 | 1980-04-26 | 1980-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-10-26 | 1984-04-26 | 1984-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-10-26 | 1988-04-26 | 1988-10-26 | $7700.00 | Window Closed / Lapsed |