US4115633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrochemical device comprising ternary ionic conductors
Assignee: AT&T Inc
•
Filing: 1977-04-01
•
Granted: 1978-09-19
•
Expires: 1997-04-01
Abstract
Abstract Ionic conductivity in ternary chalcogenides of the form ABxCy, where A is a metallic atom with atomic number no greater than 55 which has a +1 oxidation state, B is a group III A metallic atom and C is a group VI A atom, has been observed. This ionic conductivity makes the compounds useful as components in electrochemical cells, e.g., electrolytes and electrodes.
Inventors
- 👤 Horst Manfred Kasper
- 👤 Benjamin Tell
- 👤 Sigurd Wagner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:12
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M6/00; H01M6/14; H01M6/18; C; C01; C01P; C01P2006/00; C01P2006/40
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
149 words
An electrochemical device comprising cathode and anode electrode structures in intimate contact with an electrolyte such that said anode electrode structure supplies ions to said electrolyte CHARACTERIZED IN THAT at least one of said cathode electrode structure, anode electrode structure and electrolyte being solid and includes an ionic conducting material represented by the formula AB x C y where A is a metallic atom with atomic number no greater than 55 which has a +1 oxidation state, B is a group III A metallic atom, C is a group VI A atom and where x and y are such that AB x C y is essentially electrically neutral; wherein any of said ionic conducting materials included in said electrode structures, has an ionic transport number between 0.1 and 0.9 and any of said ionic conducting materials included in said electrolyte, has an ionic transport number of at least 0.5.
Claim 2
Dependent Claim
149 words
An electrochemical device comprising cathode and anode electrode structures in intimate contact with an electrolyte such that said anode electrode structure supplies ions to said electrolyte CHARACTERIZED IN THAT at least one of said cathode electrode structure, anode electrode structure and electrolyte being solid and includes an ionic conducting material represented by the formula AB x C y where A is a metallic atom with atomic number no greater than 55 which has a +1 oxidation state, B is a group III A metallic atom, C is a group VI A atom and where x and y are such that AB x C y is essentially electrically neutral; wherein any of said ionic conducting materials included in said electrode structures, has an ionic transport number between 0.1 and 0.9 and any of said ionic conducting materials included in said electrolyte, has an ionic transport number of at least 0.5.
Claim 3
Dependent Claim
19 words
The electrochemical device of claim 1 wherein C is selected from the group consisting essentially of sulfur and selenium.
Claim 4
Dependent Claim
19 words
The electrochemical device of claim 1 wherein B is selected from the group consisting essentially of gallium and indium.
Claim 5
Dependent Claim
20 words
The electrochemical device of claim 1 wherein A is selected from the group consisting essentially of lithium, copper, and silver.
Claim 6
Dependent Claim
13 words
The electrochemical cell of claim 1 where the ionic conducting material is doped.
Claim 7
Dependent Claim
14 words
The electrochemical device of claim 1 wherein x is 5 and y is 8.
Claim 8
Dependent Claim
19 words
The electrochemical device of claim 6 wherein A is selected from the group consisting essentially of copper and silver.
Claim 9
Dependent Claim
19 words
The electrochemical device of claim 6 wherein B is selected from the group consisting essentially of gallium and indium.
Claim 10
Dependent Claim
19 words
The electrochemical device of claim 6 wherein C is selected from the group consisting essentially of sulfur and selenium.
Claim 11
Dependent Claim
15 words
The electrochemical device of claim 6 wherein said electrolyte is AgGa 5 S 8 .
Claim 12
Dependent Claim
13 words
The electrochemical device of claim 1 wherein said electrolyte is AgGaS 2 .
References Cited (Backward Citations)
US3932291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-09-18 | 1982-03-20 | 1982-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-09-18 | 1986-03-20 | 1986-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-09-18 | 1990-03-20 | 1990-09-19 | $7700.00 | Window Closed / Lapsed |