Manufacturing of nitrogen doped carbon coated Silicon based anode materials and lithium secondary battery comprising the same

摘要

Provided are a silicon-based anode material including a nitrogen-doped carbon coating and a lithium secondary battery including the same. According to the present invention, the silicon-based anode material including a nitrogen-doped carbon coating is manufactured by a mixing process with 1-ethyl-3-methylimidazolium dicynamide, which is an ionic liquid containing a large quantity of nitrogen; and by a carbonizing process. Through this method, a lithium secondary battery having excellent discharging capacity and high output properties can be manufactured.