▎ 摘　　要

NOVELTY - Preparing graphene paper having sporadically increased inter-layer distance, comprises (a) reacting few layer graphene with alcohol in presence of acid catalyst; (b) neutralizing the reaction product and filtering graphene having sporadically increased inter-layer distance; (c) dispersing the obtained graphene in a solvent; and (d) filtering graphene dispersed in the solvent. USE - The graphene paper is useful for high-capacity lithium-ion battery cathode materials. ADVANTAGE - The graphene paper stores lithium ions, minimizes penetration of electrolytes and stabilizes lithium storage capacity and charge and discharge characteristics of lithium-ion battery. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of reaction between alcohol and graphene during the preparation method.