US4243732A
Expired / Lapsed
US
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Charge transfer complex cathodes for solid electrolyte cells
Assignee: Edgewell Personal Care Brands LLC
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Filing: 1979-06-28
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Granted: 1981-01-06
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Expires: 1999-06-28
Abstract
Abstract Charge transfer complex cathodes for use in solid cell systems wherein the cathodes are the reaction products of a halogen such as iodine or bromine with a carbonaceous pitch such as mesophase pitch.
Inventors
- 👤 Robert A. Powers
- 👤 Demetrios V. Louzos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:28
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/182; H01M4/00; H01M4/02; H01M4/36; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
48 words
A cathode for use in an electrochemical cell comprising a charge transfer complex in which the complex is the reaction product of at least one halogen with mesophase pitch and wherein the donor component is the mesophase pitch and the acceptor component is the at least one halogen.
Claim 2
Dependent Claim
48 words
A cathode for use in an electrochemical cell comprising a charge transfer complex in which the complex is the reaction product of at least one halogen with mesophase pitch and wherein the donor component is the mesophase pitch and the acceptor component is the at least one halogen.
Claim 3
Dependent Claim
23 words
The cathode of claim 1 wherein the at least one halogen is selected from the group consisting of iodine, bromine, chlorine and fluorine.
Claim 4
Dependent Claim
13 words
The cathode of claim 1 wherein the at least one halogen is iodine.
Claim 5
Dependent Claim
13 words
The cathode of claim 1 wherein the at least one halogen is bromine.
Claim 6
Dependent Claim
33 words
The cathode of claim 1 wherein the charge transfer complex is X·YI 2 where X is mesophase pitch and wherein the amount of iodine varies between about 50% and about 97% by weight.
Claim 7
Dependent Claim
17 words
The cathode of claim 5 wherein the iodine varies between about 80% and about 87% by weight.
Claim 8
Dependent Claim
33 words
The cathode of claim 1 wherein the charge transfer complex is X·Br 2 where X is mesophase pitch and wherein the amount of bromine varies between about 50% and about 97% by weight.
Claim 9
Dependent Claim
29 words
The cathode of claim 1 for use in a solid electrolyte cell employing an anode selected from the group consisting of lithium, silver, sodium, potassium, rubidium, magnesium and calcium.
Claim 10
Dependent Claim
35 words
The cathode of claim 1 or 8 for use in a solid electrolyte cell employing an electrolyte selected from the group consisting of lithium iodide, tetrasilver potassium tetraiodide cyanide, lithium bromide and tetrasilver rubidium pentaiodide.
Claim 11
Dependent Claim
27 words
The cathode of claim 2 for use in a solid electrolyte cell wherein the halogen is iodine, the anode is lithium and the electrolyte is lithium iodide.
Claim 12
Dependent Claim
27 words
The cathode of claim 2 for use in a solid electrolyte cell wherein the halogen is bromine, the anode is lithium and the electrolyte is lithium bromide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-06 | 1984-07-07 | 1985-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-06 | 1988-07-07 | 1989-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-06 | 1992-07-07 | 1993-01-06 | $7700.00 | Window Closed / Lapsed |