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

An additive, a non-aqueous electrolyte solution including the same, and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes a lithium salt, a non-aqueous solvent including a propyl propionate, and a compound represented by Formula 1: wherein, in Formula 1, Rand Rare each independently hydrogen or a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms.