US4472488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric electrode coated with reaction product of cyclic compound
Assignee: Honeywell International Inc
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Filing: 1983-11-30
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Granted: 1984-09-18
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Expires: 2003-11-30
Abstract
Abstract Batteries are disclosed with electrodes, especially cathodes, having a conjugated backbone polymer such as polyacetylene as electroactive material and a coating. The coating is formed by reaction between the oxidized polymer and a pyrrole, thiophene, azulene, furan or aniline compound.
Inventors
- 👤 MacRae Maxfield
- 👤 Lawrence W. Shacklette
- 👤 Ronald L. Elsenbaumer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:18
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
47 words
A polymeric battery electrode comprising a conjugated backbone polymer as electroactive material and a surface coating which is the product of reaction between the oxidized conjugated backbone polymer and a cyclic compound selected from the group consisting of pyrrole, thiophene, azulene, furan, aniline and substituted forms thereof.
Claim 2
Dependent Claim
47 words
A polymeric battery electrode comprising a conjugated backbone polymer as electroactive material and a surface coating which is the product of reaction between the oxidized conjugated backbone polymer and a cyclic compound selected from the group consisting of pyrrole, thiophene, azulene, furan, aniline and substituted forms thereof.
Claim 3
Dependent Claim
13 words
The polymeric battery electrode of claim 1 wherein the cyclic compound is pyrrole.
Claim 4
Dependent Claim
14 words
The polymeric battery electrode of claim 2 wherein said conjugated backbone polymer is polyacetylene.
Claim 5
Dependent Claim
13 words
The polymeric battery electrode of claim 1 wherein said cyclic compound is thiophene.
Claim 6
Dependent Claim
14 words
The polymeric battery electrode of claim 4 wherein said conjugated backbone polymer is polyacetylene.
Claim 7
Dependent Claim
22 words
The polymeric battery electrode of claim 1 wherein said cyclic compound is selected from the group consisting of 3-methylthiophene, 3,4-dimethylthiophene and 3,4-dimethylpyrrole.
Claim 8
Dependent Claim
14 words
The polymeric battery electrode of claim 6 wherein said conjugated backbone polymer is polyacetylene.
Claim 9
Dependent Claim
14 words
The polymeric battery electrode of claim 1 wherein said conjugated backbone polymer is polyacetylene.
Claim 10
Dependent Claim
14 words
The polymeric battery electrode of claim 1 wherein said conjugated backbone polymer is poly(p-phenylene).
Claim 11
Dependent Claim
20 words
A battery comprising at least two electrodes, at least one of which is the polymeric battery electrode of claim 1.
Claim 12
Dependent Claim
24 words
The battery of claim 10 wherein said polymeric battery electrode is a cathode into which anions are inserted during the charging of said battery.
Claim 13
Dependent Claim
22 words
The battery of claim 11 wherein said heterocyclic compound is selected from the group consisting of pyrrole, thiophene, 3-methylthiophene, 3,4-dimethylthiophene and 3,4-dimethylpyrrole.
Claim 14
Dependent Claim
12 words
The battery of claim 12 wherein said conjugated backbone polymer is polyacetylene.
Claim 15
Dependent Claim
12 words
The battery of claim 11 wherein said conjugated backbone polymer is polyacetylene.
Claim 16
Dependent Claim
12 words
The battery of claim 11 wherein said conjugated backbone polymer is poly(p-phenylene).
Claim 17
Dependent Claim
14 words
The battery of claim 15 wherein the cyclic compound is a thiophene or furan.
Claim 18
Dependent Claim
16 words
The battery of claim 16 wherein the cyclic compound is thiophene, 3-methylthiophene, 3,4-dimethylthiophene, 3-phenylthiophene or 2,3-dibromothiophene.
References Cited (Backward Citations)
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US4343871A
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US4321114A
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US4442187A
Cited
EP0050441A1
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-09-18 | 1988-03-19 | 1988-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-09-18 | 1992-03-19 | 1992-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-09-18 | 1996-03-19 | 1996-09-18 | $7700.00 | Window Closed / Lapsed |