GEL POLYMER ELECTROLYTE COMPOSITION AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

The present invention relates to a gel polymer electrolyte composition for a lithium secondary battery and a secondary battery including the same, and particularly, to a gel polymer electrolyte composition for a lithium secondary battery, which includes a lithium salt, a non-aqueous organic solvent, an ionic liquid, an oligomer having a specific structure, a heat stabilizer, and a polymerization initiator, and a lithium secondary battery in which high-temperature stability is improved by including the same.