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US4585581A
Expired / Lapsed
US
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Polymer blends for use in photoelectrochemical cells for conversion of solar energy to electricity
Assignee: United States Department of Energy
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Filing: 1984-09-28
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Granted: 1986-04-29
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Expires: 2004-09-28
Abstract
Abstract There is disclosed a polymer blend of a highly conductive polymer and a solid polymer electrolyte that is designed to achieve better charge transfer across the conductive film/polymer electrolyte interface of the electrochemical photovoltaic cell. The highly conductive polymer is preferably polypyrrole or poly-N-p-nitrophenylpyrrole and the solid polymer electrolyte is preferably polyethylene oxide or polypropylene oxide.
Inventors
- 👤 Terje Skotheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:15
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/20; H01M; H01M14/00; H01M14/005; Y; Y02; Y02P; Y02P60/00; Y02P60/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
94 words
A thin film providing improved electric charge transfer across said film comprising: a polymer blend of a highly conductive polymer selected from the group consisting of polypyrrole, polyindole, polyazulene, polythiophene, poly-N-p-nitro-phenylpyrrole, and polyfuran and a dry solid electron or ion exchange polymer electrolyte which is complexed with an electron acceptor compound; said blend being the major component of said film at one face thereof; and said dry solid polymer electrolyte being the major component of said film at the other face thereof; said polymer blend being more conductive than said dry solid polymer electrolyte.
Claim 2
Dependent Claim
94 words
A thin film providing improved electric charge transfer across said film comprising: a polymer blend of a highly conductive polymer selected from the group consisting of polypyrrole, polyindole, polyazulene, polythiophene, poly-N-p-nitro-phenylpyrrole, and polyfuran and a dry solid electron or ion exchange polymer electrolyte which is complexed with an electron acceptor compound; said blend being the major component of said film at one face thereof; and said dry solid polymer electrolyte being the major component of said film at the other face thereof; said polymer blend being more conductive than said dry solid polymer electrolyte.
Claim 3
Dependent Claim
27 words
A film according to claim 1, wherein said dry solid polymer electrolyte in said blend is selected from the group consisting of polyethylene oxide and polypropylene oxide.
Claim 4
Dependent Claim
20 words
A film according to claim 1, wherein said polymer electrolyte is polyethylene oxide complexed with potassium iodide or sodium iodide.
Claim 5
Dependent Claim
20 words
A film according to claim 1, wherein said polymer electrolyte is polypropylene oxide complexed with potassium iodide or sodium iodide.
Claim 6
Dependent Claim
16 words
A film according to claim 1, wherein said highly conductive polymer in said blend is polypyrrole.
Claim 7
Dependent Claim
16 words
A film according to claim 1, wherein said highly conductive polymer in said blend is poly-N-p-nitrophenylpyrrole.
References Cited (Backward Citations)
US4487709A
Cited
US4466910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-28 | 1989-10-28 | 1990-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-28 | 1993-10-28 | 1994-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-28 | 1997-10-28 | 1998-04-29 | $7700.00 | Window Closed / Lapsed |