▎ 摘　　要

NOVELTY - The method comprises forming a collaboration pore using graphene, removing a functional group including oxygen from graphene oxide (40-80 wt.%), and heating the graphene oxide at a temperature of 200-800 degrees C for 0.05-5 hours. USE - The method is useful for manufacturing an anode active material for lithium secondary battery (claimed). ADVANTAGE - The method enables easy and economic manufacture of the anode active material with improved service life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an anode active material for lithium secondary battery.