US4472487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Battery having polymeric anode coated with reaction product of oxirane compound
Assignee: Honeywell International Inc
•
Filing: 1983-11-30
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Granted: 1984-09-18
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Expires: 2003-11-30
Abstract
Abstract Rechargable battery with a conjugated backbone polymer anode which has been coated, when in the reduced state, by contact with a monomer with a reactive oxirane group. Reduced polyacetylene anodes, after reaction with ethylene oxide, offer improved stability to solvents.
Inventors
- 👤 MacRae Maxfield
- 👤 Granville G. Miller
- 👤 Ray H. Baughman
- 👤 Jane E. Frommer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:04
CPC Classifications
H; H01; H01M; H01M10/00; H01M10/05; H01M4/00; H01M4/02; H01M4/36; H01M4/60; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
84 words
A battery comprising: (a) an anode comprising a conjugated backbone polymer which has been coated when in a reduced state by contact with a monomer with a reactive oxirane group (b) an electrolyte comprising an organic solvent and an alkali-metal salt, and (c) a cathode; alkali-metal cations from said electrolyte being inserted into said anode during the charging of said battery; with said coating being of sufficient coverage on said anode to substantially exclude contact of the electrolyte solution with the active anode material.
Claim 2
Dependent Claim
84 words
A battery comprising: (a) an anode comprising a conjugated backbone polymer which has been coated when in a reduced state by contact with a monomer with a reactive oxirane group (b) an electrolyte comprising an organic solvent and an alkali-metal salt, and (c) a cathode; alkali-metal cations from said electrolyte being inserted into said anode during the charging of said battery; with said coating being of sufficient coverage on said anode to substantially exclude contact of the electrolyte solution with the active anode material.
Claim 3
Dependent Claim
15 words
The battery of claim 1 wherein said conjugated backbone polymer of said anode is polyacetylene.
Claim 4
Dependent Claim
16 words
The battery of claim 2 wherein said alkali-metal salt of said electrolyte is a lithium salt.
Claim 5
Dependent Claim
16 words
The battery of claim 3 wherein said monomer with a reactive oxirane group is propylene oxide.
Claim 6
Dependent Claim
16 words
The battery of claim 3 wherein said monomer with a reactive oxirane group is ethylene oxide.
Claim 7
Dependent Claim
16 words
The battery of claim 2 wherein said monomer with a reactive oxirane group is propylene oxide
Claim 8
Dependent Claim
16 words
The battery of claim 2 wherein said monomer with a reactive oxirane group is ethylene oxide.
Claim 9
Dependent Claim
11 words
The battery of claim 7 wherein said solvent is an ether.
Claim 10
Dependent Claim
12 words
The battery of claim 7 wherein said solvent is tetrahydrofuran or 2-methyltetrahydrofuran.
Claim 11
Dependent Claim
12 words
The battery of claim 7 wherein the solvent is an alkylene carbonate.
Claim 12
Dependent Claim
11 words
The battery of claim 10 wherein the solvent is pyopylene carbonate.
Claim 13
Dependent Claim
11 words
The battery of claim 2 wherein said solvent is an ether.
Claim 14
Dependent Claim
12 words
The battery of claim 2 wherein said solvent is tetrahydrofuran or 2-methyltetrahydrofuran.
Claim 15
Dependent Claim
12 words
The battery of claim 2 wherein the solvent is an alkylene carbonate.
Claim 16
Dependent Claim
11 words
The battery of claim 14 wherein the solvent is propylene carbonate.
Claim 17
Dependent Claim
11 words
The battery of claim 1 wherein said solvent is an ether.
Claim 18
Dependent Claim
12 words
The battery of claim 1 wherein said solvent is tetrahydrofuran or 2-methyltetrahydrofuran.
Claim 19
Dependent Claim
11 words
The battery of claim 1 wherein the solvent is a nitrile.
Claim 20
Dependent Claim
12 words
The battery of claim 1 wherein the solvent is an alkylene carbonate.
Claim 21
Dependent Claim
11 words
The battery of claim 19 wherein said solvent is propylene carbonate.
Claim 22
Dependent Claim
15 words
The battery of claim 1 wherein the alkali metal salt is an alkali metal hexafluorophosphate.
References Cited (Backward Citations)
US4326014A
Cited
US3957533A
Cited
US4296185A
Cited
US4315976A
Cited
US4321114A
Cited
US4379817A
Cited
US4318969A
Cited
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 |