| abstract |
The present invention provides a nonaqueous electrolyte comprising an organic solvent, a lithium salt, and a phosphorus compound including an acryloxy group; and a lithium secondary battery including the nonaqueous electrolyte. Since the non-aqueous electrolyte includes the phosphorus compound to form a stable solid electrolyte interface (SEI) on the electrode during charging and discharging of the battery, the initial capacitance and power characteristics and life characteristics of the battery at room temperature and low temperature are available. improve. |