▎ 摘　　要

NOVELTY - A vertical graphene/titanium/oxygen/sulfur carbon composite material comprises graphene nanosheet grown vertically and intertwined on a substrate, titanium niobium oxide coated on the graphene nanosheet, vertical graphene/titanium niobium oxide nanosheet and sulfur-doped carbon layer coated on the vertical graphene/titanium niobium oxide nanosheet. USE - The vertical graphene/titanium/oxygen/sulfur carbon composite material is useful as cathode material for lithium ion battery (claimed) and in electronic equipment such as electric vehicles and hybrid vehicles. ADVANTAGE - The vertical graphene/titanium/oxygen/sulfur carbon composite material has three-dimensional porous array structure and excellent high-rate performance and coulombic efficiency, and improves the energy density/power density and cycle stability of lithium ion battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of vertical graphene/titanium/oxygen/sulfur carbon composite material, which involves depositing graphene array on the carbon cloth by plasma enhanced chemical vapor deposition method to obtain vertical graphene nanosheet, drying the vertical graphene nanosheet carrying out solvothermal reaction using vertical graphene nanosheet as growth substrate, isopropyl titanate and antimony pentachloride as precursor, washing, drying, and heat treating to obtain vertical graphene/titanium niobium oxide nanosheet, and dissolving 3,4-ethylenedioxythiophene and lithium perchlorate in acetonitrile, depositing poly(3,4-ethylenedioxythiophene) on the prepared vertical graphene/titanium niobium oxide nanosheet by constant current anodic deposition and then calcining.