| abstract |
The present invention provides a non-aqueous electrolytic solution comprising a lithium salt including lithium bisfluorosulfonylimide (LiFSI), and an additive including a vinylene carbonate-based compound and a sulfone-based compound, and a lithium secondary battery comprising the same . The lithium secondary battery including the nonaqueous electrolyte of the present invention can improve low temperature output characteristics, high temperature cycle characteristics, output characteristics after high temperature storage, and capacity characteristics. |