▎ 摘　　要

NOVELTY - A graphene/lithium titanate composite material preparing method involves selecting 0.027-0.33 mole titanium source, graphene, 0.1-10 g surfactant and 1-1000 ml organic solvent, and ultrasonically dispersing titanium source, lithium source in 1-50 ml deionized water, and 10-1000 ml tert-butyl alcohol is added to the solution. The resulting solution is transferred into a microwave reactor, heated and cooled. The solvent is removed and dried to obtain lithium titanate graphene group precursor. The resulting precursor is placed in a tube furnace and calcinated to obtain the composite material. USE - Method for preparing a graphene/lithium titanate composite material that is utilized in a lithium battery (claimed). ADVANTAGE - The method enables preparing the graphene/lithium titanate composite material with excellent performance and improving charging-discharging performance of the battery. DETAILED DESCRIPTION - A graphene/lithium titanate composite material preparing method involves selecting 0.027-0.33 mole titanium source, graphene, 0.1-10 g surfactant and 1-1000 ml organic solvent, and ultrasonically dispersing titanium source, 0.021-0.027 mole lithium source in 1-50 ml deionized water, and 10-1000 ml tert-butyl alcohol is added to the solution. The resulting solution is transferred into a microwave reactor, heated to reflux and cooled. The solvent is removed and dried to obtain lithium titanate graphene group precursor. The resulting lithium titanate graphene group precursor is placed in a tube furnace and calcinated under an inert gas to obtain graphene/lithium titanate composite material.