GEL POLYMER ELECTROLYTE COMPOSITION, GEL POLYMER ELECTROLYTE PREPARED THEREBY, AND LITHIUM SECONDARY BATTERY INCLUDING THE GEL POLYMER ELECTROLYTE

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