Non-Aqueous Electrolyte Solution for Lithium Secondary Battery

A non-aqueous electrolyte solution for a lithium secondary battery according to the present technology includes: a lithium salt; an organic solvent; and a first additive, and the first additive includes a compound represented by following Chemical formula 1: Herein, Ris a substituted or unsubstituted unsaturated hydrocarbon group having 2 to 20 carbon atoms, and Ris one selected from the group consisting of a substituted or unsubstituted alkyl group having 1 to 10 carbon atoms and a substituted or unsubstituted cyclic alkyl group having 3 to 8 carbon atoms.