Non-Aqueous Electrolyte Solution for Lithium Secondary Battery and Lithium Secondary Battery Including the Same

A non-aqueous electrolyte solution for a lithium secondary battery, comprising:

• a lithium salt;
• an organic solvent;
• a compound represented by Formula 1 as a first additive;
• and
• lithium difluorophosphate (LiDFP) as a second additive,
• wherein the first additive and the second additive are each independently included in an amount of 0.01 wt % to 8.5 wt % based on a total amount of the non-aqueous electrolyte solution:
• wherein, in Formula 1,
• R1 to R3 are each independently hydrogen or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, and
• A is,
• wherein R4 and R6 are each independently a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, or —O—R5;
• and
• wherein R5 is a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted alkynyl group having 2 to 6 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 12 carbon atoms.