US6294289B1
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Cyano-substituted methide and amide salts
Assignee: 3M Innovative Properties Co
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Filing: 1998-08-25
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Granted: 2001-09-25
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Expires: 2018-08-25
Abstract
Abstract Amide and methide salts, comprising in the case of an amide salt one cyano (—CN) group, and in the case of a methide salt, two cyano groups are described in applications requiring a high degree of ionic dissociation. The salts are especially useful as electrolyte components in electrochemical cells such as batteries, fuel cells, capacitors, supercapacitors, electrochemical sensors and electrolytic cells, by providing a means for ionic conduction and transport.
Inventors
- 👤 Alan David Fanta
- 👤 Phat tan Pham
- 👤 William Mario Lamanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:47
CPC Classifications
C; C07; C07C; C07C311/00; C07C311/01; C07C311/02; C07C311/03; H; H01; H01M; H01M10/00; H01M10/05; H01M10/052; C07C311/09; C07C317/00; C07C317/44; H01M10/056; H01M10/0564; H01M10/0565; H01M10/0566; H01M10/0568; H01M6/00; H01M6/14; H01M6/16; H01M6/162; H01M6/166; H01M10/0525; Y; Y02; Y02E; Y02E60/00; Y02E60/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
31 words
An electrolyte comprising at least one salt selected from a group consisting of an N-cyano-substituted amide, an N-cyano-substituted sulfonamide, a dicyano-substituted sulfonyl methide, and a dicyanoacyl methide, and a matrix material.
Claim 2
Dependent Claim
31 words
An electrolyte comprising at least one salt selected from a group consisting of an N-cyano-substituted amide, an N-cyano-substituted sulfonamide, a dicyano-substituted sulfonyl methide, and a dicyanoacyl methide, and a matrix material.
Claim 3
Dependent Claim
79 words
An electrolyte comprising: (a) at least one salt of the formula: R—[Q—X − (CN) n ] y y/mM m+ wherein: y is 1 or 2; X is C or N, which when X is C, n is 2 and when X is N, n is 1; R is a fluorine atom, a hydrocarbon or a fluorinated hydrocarbon group; Q is a linking group; and M m+ is a cation having a valence of m; and (b) a matrix material.
Claim 4
Dependent Claim
79 words
An electrolyte comprising: (a) at least one salt of the formula: R—[Q—X − (CN) n ] y y/mM m+ wherein: y is 1 or 2; X is C or N, which when X is C, n is 2 and when X is N, n is 1; R is a fluorine atom, a hydrocarbon or a fluorinated hydrocarbon group; Q is a linking group; and M m+ is a cation having a valence of m; and (b) a matrix material.
Claim 5
Dependent Claim
23 words
An electrolyte of claim 2 , wherein Q is a linking group selected from the group consisting of —SO 2 — and —C(O)—.
Claim 6
Dependent Claim
110 words
An electrolyte of claim 2 , wherein R is a monovalent or divalent non-fluorinated or fluorinated straight or branched, saturated or unsaturated aliphatic group having 1 to 18 carbon atoms, a cycloaliphatic group of 3 to 12 carbon atoms, a cycloaliphatic-aliphatic group in which the aliphatic group has 1 to 4 carbon atoms, in which the carbon chain of the aliphatic or cycloaliphatic groups are uninterrupted or interrupted by a heteroatom and which the aliphatic or cycloaliphatic group is unsubstituted or substituted by a halogen atom or a reactive group; an aryl or arylaliphatic group, in which said aliphatic group has 1 to 4 carbon atoms; or a reactive group.
Claim 7
Dependent Claim
27 words
An electrolyte of claim 2 , wherein the salt is of the formula wherein R f is a perfluoroalkyl group of from 1 to 12 carbon atoms.
Claim 8
Dependent Claim
13 words
An electrolyte of claim 5 , wherein R f is perfluoromethyl or perfluorobutyl.
Claim 9
Dependent Claim
27 words
An electrolyte of claim 2 , where the salt is of the formula wherein R f is a perfluoroalkyl group of from 1 to 12 carbon atoms.
Claim 10
Dependent Claim
13 words
An electrolyte of claim 7 , wherein R f is perfluoromethyl or perfluorobutyl.
Claim 11
Dependent Claim
14 words
An electrolyte of claim 1 , which further comprises one or more conductive salts.
Claim 12
Dependent Claim
16 words
An electrochemical cell comprising: an electrolyte according to claim 1 ; an anode; and a cathode.
Claim 13
Dependent Claim
84 words
The electrochemical cell of claim 10 , wherein the electrolyte comprises a matrix material and at least one salt of the formula R—[Q—X − (CN) n ] y y/mM m+ wherein: y is 1 or 2; X is C or N, which when X is C, n is 2and when X is N, n is 1; R is a fluorine atom, a hydrocarbon or a fluorinated hydrocarbon group; Q is a linking group; and M m+ is a cation having a valence of m.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 2004-09-24 | 2005-03-26 | 2005-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-24 | 2009-03-26 | 2009-09-25 | $3760.00 | Window Closed / Lapsed |
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