Improving the ionic conductivity of an electrolyte based on lithium imidazolate salts

摘要

An electrolytic composition including at least one lithium salt of formula (A) wherein Rf represents a fluorine atom, a nitrile group, an optionally fluorinated or perfluorinated alkyl group having from 1 to 5 carbons, an optionally fluorinated or perfluorinated alkoxy group having from 1 to 5 carbons or an optionally fluorinated or perfluorinated oxa-alkoxy group having from 1 to 5 carbons; and the following solvent mixture: ethylene carbonate, γ-butyrolactone, and methyl propanoate. Also, to the use of the compositions in Li-ion batteries.