SEPARATOR FILM WITH CONDUCTIVE MATERIALS FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY WITH THE SAME

摘要

PURPOSE: A separator film containing conductive materials for a secondary lithium battery and the secondary lithium battery including the same are provided to improve safety of the secondary lithium battery and to increase the charge/discharge lifespan. CONSTITUTION: A separator film for a secondary lithium battery contains metallic conductive materials which are comprised of gold, platinum, silver, copper, aluminum, and nickel nonmetallic conductive materials which are comprised of conductive carbon, ITO conductive materials, and titanium oxides. The separator film is comprised of 20-60 weight% of a polyethylene resin and 40-80 weight% of a solvent. The separator film includes 1-10 weight% of the conductive materials based on the total weight of the reins and the solvent.