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US 10,106,492 B2Granted
Fluorinated carbonyl compounds comprising a triple bond, methods for their manufacture and uses thereof
AssigneeSolvay SA
InventorsMartin Bomkamp, Dirk Seffer
Life of this patent
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Abstract
Fluorinated carbonyl compounds comprising a triple bond were prepared and their use as solvent additives or solvents in lithium ion batteries, lithium air batteries, lithium sulphur batteries and supercapacitors is described. Preferred compounds contain at least one nitrile or at least one alkynyl group.
Claims13
A compound of general formula (I),
- R1-O—C(O)—O—R2
- wherein R1 is a branched or unbranched alkyl group substituted by at least one fluorine atom;
- wherein R2 is a branched or unbranched alkyl group substituted by at least one nitrile group or an unbranched alkynyl group.
A method for the manufacture of a compound of general formula (I),
- R1-O—C(O)—O—R2
- wherein R1 is a branched or unbranched alkyl group substituted by at least one fluorine atom;
- and
- wherein R2 is a branched or unbranched alkyl group substituted by at least one nitrile group or an unbranched alkynyl group;
- and
- wherein the method of manufacture comprises the step of reacting a fluoroformate of general formula II, R1OC(O)F, with an alcohol of general formula III, R2OH, to form a carbonate of general formula IV, R1OC(O)OR2.
3 more elements
A solvent additive or solvent for lithium ion batteries, lithium air batteries, lithium sulphur batteries, supercapacitors or hybrid supercapacitors comprising a compound of general formula (I),
- R1-O—C(O)—O—R2
- wherein R1 is a branched or unbranched alkyl group substituted by at least one fluorine atom;
- wherein R2 is a branched or unbranched alkyl group substituted by at least one nitrile group or an unbranched alkynyl group.
Dependencies are inferred from the claim text.