▎ 摘　　要

NOVELTY - Method for preparing an energy storage material involves performing graphene oxide modification, preparing a graphene aerogel, performing heat treatment of a graphene aerogel and preparing a phase change energy storage material, where the heat treatment of the graphene aerogel is performed by three stages of heating, heat preservation and cooling. USE - The method is useful for preparing an energy storage material. ADVANTAGE - The method improves microstructure order and regularity formed by the phase change material, carrier in the energy storage new material and thermal conductivity and heat storage performance of the new energy storage material.