Patent US4752544A successfully refreshed from Google Patents.
US4752544A
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Solid polymer electrolyte and production method
Assignee: Dow Chemical Co
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Filing: 1987-10-15
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Granted: 1988-06-21
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Expires: 2007-10-15
Abstract
Abstract An anionically conductive polymer electrolyte, solid at ambient temperature, containing a salt of the formula: (R).sub.3 CMX.sub.n, wherein M is selected from the group consisting of at least one of boron, phosphorus, antimony, and arsenic, wherein X is halogen, n is 4 or 6, and R is aryl of 6-18 carbon atoms, alkyl of 1-8 carbon atoms, or alkaryl of 7-26 carbon atoms. The polymer is derived from at least one monomer having at least one heteroatom in the monomer unit selected from oxygen, nitrogen, sulfur, and phosphorus. The electrolyte can be prepared by mixing the polymer and the salt together in the presence of a diluent or solvent and removing the diluent or solvent or by polymerizing a salt and monomer mixture utilizing a metal or a Lewis acid catalyst.
Inventors
- 👤 Thomas D. Gregory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:16
CPC Classifications
H; H01; H01M; H01M6/00; H01M6/14; H01M6/18; H01M6/181; H01M6/16; H01M6/162; H01M6/166
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
93 words
A method of producing an electrolyte, solid at ambient temperature, for an electrochemical cell comprising polymerizing a mixture in the presence of a catalyst comprising at least one monomer comprising at least one heteroatom in the monomer unit and at least one salt of the formula: (R).sub.3 CMX.sub.n wherein M is selected from the group consisting of at least one of boron, phosphorus, antimony, and arsenic, X is halogen, n is 4 or 6, and R is aryl of 6-18 carbon atoms, alkyl of 1-8 carbon atoms, or alkaryl of 7-26 carbon atoms.
Claim 2
Independent Claim
93 words
A method of producing an electrolyte, solid at ambient temperature, for an electrochemical cell comprising polymerizing a mixture in the presence of a catalyst comprising at least one monomer comprising at least one heteroatom in the monomer unit and at least one salt of the formula: (R).sub.3 CMX.sub.n wherein M is selected from the group consisting of at least one of boron, phosphorus, antimony, and arsenic, X is halogen, n is 4 or 6, and R is aryl of 6-18 carbon atoms, alkyl of 1-8 carbon atoms, or alkaryl of 7-26 carbon atoms.
Claim 3
Dependent Claim
43 words
The method of claim 1 wherein said polymer is derived from a monomer or monomer units wherein said heteroatom is selected from the group consisting of oxygen, nitrogen, sulfur, and phosphorus, said catalyst is a metal or Lewis acid, and R is phenyl.
Claim 4
Dependent Claim
35 words
The method of claim 2 wherein said polymer is a homopolymer or copolymer derived from a monomer or monomers selected from the group consisting of tetrahydrofuran, 1,3-dioxolane, 1,4-dioxane, ethylene oxide, propylene oxide, and butylene oxide.
Claim 5
Independent Claim
138 words
A method of producing a polymer salt complex electrolyte, solid at ambient temperature, comprising mixing at least one polymer solid at ambient temperature and derived from at least one monomer having at least one heteroatom in the monomer unit with at least one salt of the formula: (R).sub.3 CMX.sub.n wherein M is selected from the group consisting of at least one of boron, phosphorus, antimony, and arsenic, X is halogen, n is 4 or 6, and R is aryl of 6-18 carbon atoms, alkyl of 1-8 carbon atoms, or alkaryl of 7-26 carbon atoms wherein said salt is added to said polymer in the presence of a solvent or diluent for said polymer and wherein said solvent or diluent is subsequently removed or said salt is added to said polymer rendered fluid by heating above its melting point.
Claim 6
Independent Claim
138 words
A method of producing a polymer salt complex electrolyte, solid at ambient temperature, comprising mixing at least one polymer solid at ambient temperature and derived from at least one monomer having at least one heteroatom in the monomer unit with at least one salt of the formula: (R).sub.3 CMX.sub.n wherein M is selected from the group consisting of at least one of boron, phosphorus, antimony, and arsenic, X is halogen, n is 4 or 6, and R is aryl of 6-18 carbon atoms, alkyl of 1-8 carbon atoms, or alkaryl of 7-26 carbon atoms wherein said salt is added to said polymer in the presence of a solvent or diluent for said polymer and wherein said solvent or diluent is subsequently removed or said salt is added to said polymer rendered fluid by heating above its melting point.
Claim 7
Dependent Claim
40 words
The method of claim 4 wherein said polymer is derived from a monomer or monomer units wherein said heteroatom is selected from at least one member of the group consisting of oxygen, nitrogen, sulfur, and phosphorus and R is phenyl.
Claim 8
Dependent Claim
35 words
The method of claim 5 wherein said polymer is a homopolymer, copolymer or mixture thereof derived from a monomer selected from the group consisting of tetrahydrofuran, 1,3-dioxolane, 1,4-dioxane, ethylene oxide, propylene oxide, and butylene oxide.
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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) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |