ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

An electrolyte solution for a lithium secondary battery and a lithium secondary battery comprising the same are provided. The electrolyte solution comprises a first solvent comprising a heterocyclic compound containing one or more double bonds and any one of an oxygen atom or a sulfur atom; a second solvent comprising at least one of an ether-based compound, an ester-based compound, an amide-based compound, or a carbonate-based compound; a lithium salt; zirconium oxynitrate; and lithium nitrate.