| 摘要 |
PURPOSE: An electrolyte for lithium secondary battery is provided to have flame retardance, low interface resistance of a negative electrode, and excellent high temperature properties and life time properties. CONSTITUTION: An electrolyte for lithium secondary battery comprises non-aqueous organic solvent, lithium salt, fluorinated ether, or phoosphazene, and an additive for improving resistance in chemical formula 1: FSO2-R1-SO2F. In chemical formula 1, R1 is C1-12 hydrocarbon capable of being substituted by fluorine. A Lithium secondary battery comprises a positive electrode comprising positive electrode active material capable of injecting and eliminating lithium, a negative electrode comprising a negative electrode active material capable of injecting and eliminating lithium, and the electrolyte. |
