| abstract |
The present invention relates to a lithium secondary battery, specifically, a positive electrode including a lithium transition metal oxide represented by Formula 1; cathode; A non-aqueous electrolyte solution containing a lithium salt, a first non-aqueous solvent, and a second non-aqueous solvent; And a separator, wherein the first non-aqueous solvent is a carbonate-based organic solvent, the second non-aqueous solvent is a fluorine-based organic solvent, and the volume ratio of the first non-aqueous solvent: the second non-aqueous solvent is 5:5 to 9:1. It relates to a lithium secondary battery. |