Electrolyte Additive, Electrolyte for Lithium Secondary Battery Including the Same and Lithium Secondary Battery

Provided are an electrolyte additive, an electrolyte for a lithium secondary battery and a lithium secondary battery comprising the same. Such electrolyte may achieve excellent high-temperature storage characteristics and high-temperature cycle characteristics by including an electrolyte additive including a compound represented by Formula 1 capable of effectively suppressing the deterioration of a positive electrode, and of being not easily decomposed on a negative electrode: