Patent US4574113A successfully refreshed from Google Patents.
US4574113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rechargeable cell
Assignee: Rohm and Haas Co
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Filing: 1981-07-15
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Granted: 1986-03-04
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Expires: 2001-07-15
Abstract
Abstract A high energy density substantially anhydrous cell comprises a cathode which comprises a mixture of polyacetylene powder and an electrically conductive material, an organic solvent, an electrolyte comprising a salt which is soluble in the organic solvent and an inorganic intercalating anode. The anode preferably has a potential less than about +1.3 V with respect to Li + /Li° and the anions of the electrolyte salt are capable of p-doping the polyacetylene when an external electrical power source is supplied to the cell. The cathode itself is insoluble in the electrolyte solvent when the cathode is undoped or p-doped and the electrolyte solvent is stable to electrochemical decomposition.
Inventors
- 👤 Richard T. Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:35
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/36; H01M4/58; H01M4/581; H01M10/00; H01M10/05; H01M10/052; H01M4/48; H01M4/485; H01M4/60; H01M6/00; H01M6/14; H01M6/16; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
83 words
A substantially anhydrous cell comprising a cathode which comprises a mixture of polyacetylene powder and an electrically conductive material, an organic solvent, an electrolyte comprising a salt which is soluble in said solvent and an inorganic intercalating anode, said cathode being insoluble in said solvent when said cathode is either undoped or p-doped, said solvent being stable to electrochemical decomposition and the anions of said salt being capable of p-doping said polyacetylene when an external electrical power source is supplied to said cell.
Claim 2
Dependent Claim
83 words
A substantially anhydrous cell comprising a cathode which comprises a mixture of polyacetylene powder and an electrically conductive material, an organic solvent, an electrolyte comprising a salt which is soluble in said solvent and an inorganic intercalating anode, said cathode being insoluble in said solvent when said cathode is either undoped or p-doped, said solvent being stable to electrochemical decomposition and the anions of said salt being capable of p-doping said polyacetylene when an external electrical power source is supplied to said cell.
Claim 3
Dependent Claim
27 words
A substantially anhydrous cell according to claim 1 wherein said anode has a potential less than about +1.3 V with respect to Li + /Li o .
Claim 4
Dependent Claim
16 words
A substantially anhydrous cell according to claim 1 wherein said electrolyte is a salt of lithium.
Claim 5
Dependent Claim
16 words
A substantially anhydrous cell according to claim 1 wherein said inorganic intercalating anode contains tungsten dioxide.
Claim 6
Dependent Claim
16 words
A substantially anhydrous cell according to claim 1 wherein said inorganic intercalating anode contains titanium disulfide.
Claim 7
Dependent Claim
15 words
A substantially anhydrous cell according to claim 1 wherein said electrically conductive material is carbon.
Claim 8
Dependent Claim
33 words
A substantially anhydrous cell according to claim 1 wherein said electrically conductive material is present in an amount of from about 3% to about 75%, based on the total weight of the cathode.
Claim 9
Dependent Claim
16 words
A substantially anhydrous cell according to claim 1 wherein said inorganic intercalating anode contains vanadium diselenide.
Claim 10
Dependent Claim
16 words
A substantially anhydrous cell according to claim 1 wherein said inorganic intercalating anode contains vanadium disulfide.
Claim 11
Dependent Claim
16 words
A substantially anhydrous cell according to claim 1 wherein said inorganic intercalating anode intercalates lithium ions.
Claim 12
Dependent Claim
14 words
A substantially anhydrous cell according to claim 1 wherein said electrolyte is lithium perchlorate.
Claim 13
Dependent Claim
14 words
A substantially anhydrous cell according to claim 1 wherein said electrolyte is lithium hexafluoroarsenate.
Claim 14
Dependent Claim
86 words
A cell comprising a cathode which comprises a mixture of polyacetylene powder and an electrically conductive material, an organic solvent, an electrolyte comprising a salt which is soluble in said solvent, and an inorganic intercalating anode, said cathode being insoluble in said solvent when said cathode is either undoped or p-doped, said solvent being stable to electrochemical decomposition and the anions of said salt being capable of p-doping said polyacetylene when an external electrical power source is supplied to said cell, said cell being substantially anhydrous.
Claim 15
Dependent Claim
86 words
A cell comprising a cathode which comprises a mixture of polyacetylene powder and an electrically conductive material, an organic solvent, an electrolyte comprising a salt which is soluble in said solvent, and an inorganic intercalating anode, said cathode being insoluble in said solvent when said cathode is either undoped or p-doped, said solvent being stable to electrochemical decomposition and the anions of said salt being capable of p-doping said polyacetylene when an external electrical power source is supplied to said cell, said cell being substantially anhydrous.
References Cited (Backward Citations)
GB1216549A
Cited
FR2146947A1
Cited
US3907597A
Cited
US4194062A
Cited
US4181779A
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US4321114A
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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) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |