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US3963518A
Expired / Lapsed
US
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Solids ionically conductive at elevated temperatures
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1970-07-16
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Granted: 1976-06-15
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Expires: 1990-07-16
Abstract
Abstract Binary compositions of copper iodide and an alkali metal iodide or cyanide become good ionic conductors at temperatures above about 250°C. and are useful as electrolyte in electrochemical devices for use at such temperatures.
Inventors
- 👤 Seymour Senderoff
- 👤 Geoffrey W. Mellors
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:58
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
35 words
A binary composition of copper iodide and an alkali metal cyanide suitable for use in electrochemical devices activatable at temperatures above about 250°C. which composition is ionically conductive in the solid state above such temperature.
Claim 2
Dependent Claim
35 words
A binary composition of copper iodide and an alkali metal cyanide suitable for use in electrochemical devices activatable at temperatures above about 250°C. which composition is ionically conductive in the solid state above such temperature.
Claim 3
Dependent Claim
12 words
A composition as defined by claim 1 represented by the formula 4CuI--KCN.
Claim 4
Dependent Claim
34 words
An electrochemical device activatable at temperatures above about 250°C. and containing as electrolyte a composition represented by the formula 4CuI--KCN which composition is ionically conductive in the solid state at temperatures above about 250°C.
Claim 5
Dependent Claim
34 words
An electrochemical device activatable at temperatures above about 250°C. and containing as electrolyte a composition represented by the formula 4CuI--KCN which composition is ionically conductive in the solid state at temperatures above about 250°C.
References Cited (Backward Citations)
US3440101A
Cited
US3582291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-15 | 1979-12-15 | 1980-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-15 | 1983-12-15 | 1984-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-15 | 1987-12-15 | 1988-06-15 | $7700.00 | Window Closed / Lapsed |