US4520086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable solid polymer electrolyte battery cell
Assignee: United States Department of Energy
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Filing: 1984-02-01
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Granted: 1985-05-28
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Expires: 2004-02-01
Abstract
Abstract A rechargeable battery cell comprising first and second electrodes sandwiching a solid polymer electrolyte comprising a layer of a polymer blend of a highly conductive polymer and a solid polymer electrolyte adjacent said polymer blend and a layer of dry solid polymer electrolyte adjacent said layer of polymer blend and said second electrode.
Inventors
- 👤 Terji Skotheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:53
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/20; H01M; H01M14/00; H01M14/005
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
45 words
A rechargeable battery cell comprising a first electrode; a polymer blend of a highly conductive polymer and a solid polymer electrolyte adjacent said first electrode; a dry solid polymer electrolyte adjacent said polymer blend; and a second electrode adjacent to said dry solid polymer electrolyte.
Claim 2
Dependent Claim
45 words
A rechargeable battery cell comprising a first electrode; a polymer blend of a highly conductive polymer and a solid polymer electrolyte adjacent said first electrode; a dry solid polymer electrolyte adjacent said polymer blend; and a second electrode adjacent to said dry solid polymer electrolyte.
Claim 3
Dependent Claim
31 words
A cell according to claim 1, wherein said second electrode comprises a second layer of polymer blend of a highly conductive polymer and a solid polymer electrolyte, and a metal electrode.
Claim 4
Dependent Claim
28 words
A cell according to claim 2, wherein said polymer blend comprises a highly conductive polymer selected from the group comprising polypyrrole, polyindole, polyazulene, polythiophene, polyfuran, polyacetylene, and polyparaphenylene.
Claim 5
Dependent Claim
24 words
A cell according to claim 3, wherein said dry solid polymer electrolyte comprises polyethylene oxide or polypropylene oxide complexed with NaI, KI or LiI.
Claim 6
Dependent Claim
24 words
A cell according to claim 2, wherein said dry solid polymer electrolyte comprises polyethylene oxide or polypropylene oxide complexed with NaI, KI or LiI.
Claim 7
Dependent Claim
28 words
A cell according to claim 1, wherein said polymer blend comprises a highly conductive polymer selected from the group comprising polypyrrole, polyindole, polyazulene, polythiophene, polyfuran, polyacetylene and polyparaphenylene.
Claim 8
Dependent Claim
24 words
A cell according to claim 1, wherein said dry solid polymer electrolyte comprises polyethylene oxide or polypropylene oxide complexed with NaI, KI or LiI.
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) | 1988-05-27 | 1988-11-26 | 1989-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-27 | 1992-11-26 | 1993-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-27 | 1996-11-26 | 1997-05-28 | $7700.00 | Window Closed / Lapsed |