Cyano-substituted methide and amide salts
Assignee3M Innovative Properties Company
InventorsAlan David Fanta, Phat tan Pham, William Mario Lamanna
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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.
Claims11
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.
An electrolyte comprising:
- (a) at least one salt of the formula:
- R—[Q—X−(CN)n]yy/mMm+
- 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
- Mm+ is a cation having a valence of m;
- and
- (b) a matrix material.
Dependencies are inferred from the claim text.