▎ 摘　　要

NOVELTY - An iron trioxide monocrystal nanotube/graphene composite electrode material is obtained by coating an iron trioxide monocrystal nanotube with graphene at a mass ratio of 1:1-10 through van der waals force, where the iron trioxide monocrystal nanotube is alpha -iron(III) oxide single crystal having a length of 300-500 nm, outer diameter of 60-90 nm and inner diameter of 10-15 nm. USE - Iron trioxide monocrystal nanotube/graphene composite electrode material for use as lithium ion battery cathode material. ADVANTAGE - The electrode material has good stability and good electrochemical properties, and can be prepared in simple and cost effective manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing iron trioxide monocrystal nanotube/graphene composite electrode material.