Non Aqueous Electrolyte And Lithium Secondary Battery Comprising Same

Abstract: The present invention provides a non-aqueous electrolyte comprising a lithium salt and an organic solvent, the electrolyte comprising a compound represented by chemical formula 1 as the organic solvent, wherein the compound represented by chemical formula 1 is contained in a content of 25 to 80 wt% relative to the entire non-aqueous electrolyte: in chemical formula 1, R1 and R2 are each independently any one selected from the group consisting of H, an alkyl group of 1 to 10 carbon atoms, an alkenyl group of 2 to 10 carbon atoms, an alkynyl group of 2 to 10 carbon atoms, a cycloalkyl group of 3 to 12 carbon atoms, a cycloalkenyl group of 3 to 12 carbon atoms, and an aryl group of 6 to 20 carbon atoms, and X is a perfluoroalkyl group of 1 to 5 carbon atoms.

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