LITHIUM SECONDARY BATTERY

摘要

PURPOSE: Provided is a lithium secondary battery containing a non-aqueous electrolyte impregnated easily into an anode active material, therefore, which has improved lifetime property. CONSTITUTION: The lithium secondary battery contains: a cathode containing a lithium composite oxide as an active material; an anode containing a carbon material as an active material; the non-aqueous electrolyte containing a non-aqueous organic solvent, lithium salts dissolved in the organic solvent, and 0.01-5wt%(based on the total amount of the non-aqueous electrolyte) of a surfactant selected from C10-C20 alkyl sulfonate or derivatives thereof.