NON-AQUEOUS ELECTROLYTE INCLUDING ADDITIVES FOR NON-AQUEOUS ELECTROLYTE, AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME

The present invention provides a non-aqueous electrolyte comprising an additive, represented by chemical formula 1, for a non-aqueous electrolyte. In chemical formula 1, A may be a cyclic phosphate group having 2 or 3 carbon atoms; R may be an alkylene or alkenylene group having 1 to 5 carbon atoms; and X may be a perfluoroalkyl group having 1 to 5 carbon atoms.