▎ 摘　　要

NOVELTY - Preparing perylenediimide and graphene composite material comprises (i) reacting perylene tetracarboxylic dianhydride with N,N-dimethyl-1,2-ethanediamine to obtain perylenediimide, (ii) subjecting the graphene oxide into the solvent reaction of perylenediimide obtained in the step (i) to obtain composite precursor, and (iii) subjecting the composite precursor obtained in step (ii) to heat treatment under shielding gas to obtain final product. USE - The perylenediimide and graphene composite material is useful in rechargeable battery cathode material including lithium ion battery and sodium ion battery (all claimed). ADVANTAGE - The perylenediimide and graphene composite material has better stability of cycle process.