Non-Aqueous Electrolyte Solution And Lithium Secondary Battery Including The Same

A non-aqueous electrolyte solution and a lithium secondary battery including the same are disclosed herein. In some embodiments, a non-aqueous electrolyte solution includes an organic solvent, a lithium salt, and an oligomer represented by Formula 1 as a surfactant, wherein the organic solvent contains containing cyclic carbonate, dimethyl carbonate, and alkyl formate.