ELECTROLYTE COMPRISING AMIDE COMPOUND AND ELECTROCHEMICAL DEVICE CONTAINING THE SAME

摘要

PURPOSE: An amide compound-containing electrolyte is provided to have excellent thermal and chemical stability, and excellent room temperature and low temperature performance, to reduce the surface resistance of a cell, and to improve charging/discharging performance. CONSTITUTION: An electrolyte comprises: an ionizable lithium salt, an amide compound in the chemical formula 1, non-halogenated carbonate, and halogenated cyclic carbonate. In the chemical formula 1 R1, R2, R3, R4, and R5 is independently selected from hydrogen, halogen, C1-20 alkyl group, alkoxy group, alkoxyalkyl group, alkenyl group, and aryl group, and X is selected from oxygen, sulfur, nitrogen, phosphorus, carbon, and silicon.