ENHANCEMENT OF ELECTRO-CONDUCTIVITY OF CONDUCTING MATERIAL IN LITHIUM ION BATTERY

摘要

A lithium secondary battery is provided to reduce electric resistance increment attendant on use of excess binder by treating a conducting material with UV-ozone, and thus increase discharge capacity. A lithium secondary battery includes a positive electrode and a negative electrode produced from electrode compositions for manufacturing the positive electrode or negative electrode of the lithium secondary battery, wherein the electrode composition comprises a positive electrode or negative electrode active material, a conducting material capable of providing electron movement routes to the positive electrode or negative electrode active material, and a binder. The conducting material is treated with ultraviolet ray-ozone.