▎ 摘　　要

NOVELTY - Reduction of graphene oxide/titanium dioxide-B composite material comprises (i) taking graphene oxide suspension as a substrate, a metal iodide solution as a reducing agent, and titanium precursor solution in a volume ratio of 10:20:1 and then mixing by stirring to obtain mixture, (ii) placing the mixture in a reaction kettle and heating at 60-200 degrees C for 3-80 hours to obtain initial product, and (iii) centrifuging the initial product, washing, drying, and then calcining to obtain product, where drying time is 1-15 hours, and drying temperature is 100-700 degrees C. USE - The composite material is useful as cathode in lithium ion battery (claimed). ADVANTAGE - The can effectively improves specific capacity and cycle stability of cathode, and high practical value.