ELECTROLYTE FOR LITHIUM-SULFUR SECONDARY BATTERY AND LITHIUM-SULFUR SECONDARY BATTERY COMPRISING SAME

The present disclosure relates to an electrolyte solution for a lithium-sulfur secondary battery and a lithium-sulfur secondary battery containing the same, and more particularly, to an electrolyte solution for a lithium-sulfur secondary battery comprising a lithium salt, a non-aqueous solvent and an additive, wherein the non-aqueous solvent comprises a linear ether and a cyclic ether, and the additive comprises a pyridine-based compound substituted with one or more fluorine.