NON-AQUEOUS ELECTROLYTE SOLUTION AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

The present invention relates to a non-aqueous electrolyte solution that may improve high-temperature stability and life characteristics of a lithium secondary battery by forming a thin and stable SEI layer, wherein it relates to a non-aqueous electrolyte solution including an organic solvent; a lithium salt; the compound represented by Formula I described in this specification; and at least one selected from the compounds represented by Formula II to Formula V described in this specification, and a lithium secondary battery including the same.