▎ 摘　　要

NOVELTY - Preparation of lithium titanate/carbon fiber/carbon nanotube/graphene quaternary composite material involves preparing lithium titanate supported carbon fiber and carbon nanotube catalyst precursor; heating under inert gas atmosphere at 600-1200 degrees C, introducing hydrogen gas for 60-300 minutes, keeping temperature at 600-1200 degrees C, introducing carbon source gas for 60-300 minutes and cooling to room temperature under inert gas protection; and immersing in graphene oxide solution for 1-3 hours, insulating at 200-300 degrees C under inert gas protection for 1-5 hours and cooling to room temperature. USE - Method for preparing lithium titanate/carbon fiber/carbon nanotube/graphene quaternary composite material (claimed). ADVANTAGE - The method improves material gram capacity, charging efficiency, cycle performance and multiplying power performance. DETAILED DESCRIPTION - Preparation of lithium titanate/carbon fiber/carbon nanotube/graphene quaternary composite material comprises preparing lithium titanate supported carbon fiber and carbon nanotube catalyst precursor; heating under inert gas atmosphere at 600-1200 degrees C, introducing hydrogen gas for 60-300 minutes, keeping temperature at 600-1200 degrees C, introducing carbon source gas for 60-300 minutes and cooling to room temperature under inert gas protection; immersing in graphene oxide solution for 1-3 hours, insulating at 200-300 degrees C under inert gas protection for 1-5 hours and cooling to room temperature; and insulating at 800-1200 degrees C under inert gas protection for 1-5 hours and cooling to room temperature.