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US4728589A
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Reversible electrochemical doping of conjugated polymers and secondary batteries based thereon
Assignee: University Patents Inc
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Filing: 1985-08-07
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Granted: 1988-03-01
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Expires: 2005-08-07
Abstract
Abstract A secondary battery comprises at least one electrode having as an active materials a conjugated polymer, the polymer being doped to an electrically conducting state. Particularly, the battery may comprise the polymer as a cathode and a lithium anode.
Inventors
- 👤 Alan G. MacDiarmid
- 👤 Alan J. Heeger
- 👤 Paul J. Nigrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:45
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/36; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/125; H10; H10K; H10K71/00; H10K71/30; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
A secondary battery comprising an anode means, a cathode means, and an electrolyte at least one of said electrode means including as an electrode active material a conjugated polymer which is characterized as having conjugated unsaturation along a main backbone chain thereof; said polymer being either oxidized or reduced to an electrically conducting state wherein it is doped with at least one ionic dopant species; said electrolyte comprising said ionic dopant species or a compound ionizable to form said ionic dopant species; and electrolyte being non-aqueous and inert with respect to the electrodes; wherein the conjugated polymer is doped with an anionic dopant species to a p-type electrically conducting state; wherein the anionic dopant species is selected from the group consisting of halide ions, ClO 4 - , PF 6 - , AsF 6 - , AsF 4 - , SO 3 CF 3 - and BF 4 - .
Claim 2
Dependent Claim
150 words
A secondary battery comprising an anode means, a cathode means, and an electrolyte at least one of said electrode means including as an electrode active material a conjugated polymer which is characterized as having conjugated unsaturation along a main backbone chain thereof; said polymer being either oxidized or reduced to an electrically conducting state wherein it is doped with at least one ionic dopant species; said electrolyte comprising said ionic dopant species or a compound ionizable to form said ionic dopant species; and electrolyte being non-aqueous and inert with respect to the electrodes; wherein the conjugated polymer is doped with an anionic dopant species to a p-type electrically conducting state; wherein the anionic dopant species is selected from the group consisting of halide ions, ClO 4 - , PF 6 - , AsF 6 - , AsF 4 - , SO 3 CF 3 - and BF 4 - .
Claim 3
Dependent Claim
34 words
The secondary battery of claim 1 wherein the cathode means comprises the conjugated polymer and the anode means comprises as anode active means a metal whose Pauling electronegativity value is no greater than 1.6.
Claim 4
Dependent Claim
34 words
The secondary battery of claim 1 wherein the cathode means comprises the conjugated polymer and the anode means comprises as anode active means a metal whose Pauling electronegativity value is no greater than 1.0.
Claim 5
Dependent Claim
20 words
The secondary battery of claim 1 wherein the cathode means comprises the conjugated polymer and the anode means is lithium.
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) | 1991-03-01 | 1991-08-31 | 1992-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-01 | 1995-08-31 | 1996-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-01 | 1999-08-31 | 2000-03-01 | $7700.00 | Window Closed / Lapsed |