▎ 摘　　要

NOVELTY - Ionically crosslinked hybrid graphene aerogel phase change composite material comprises a thermally conductive filler material, a phase change material and a crosslinked material, where the thermally conductive filling material is hybrid graphene aerogel, and the hybrid graphene aerogel is composed of graphene oxide and expanded graphite. USE - As ionically crosslinked hybrid graphene aerogel phase change composite material. ADVANTAGE - The ionically crosslinked hybrid graphene aerogel phase change composite material has a tighter network structure, which is conducive to better heat transfer in the aerogel network. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the graphene aerogel phase change composite material, comprising (a) mixing the graphene oxide solution and expanded graphite, adding the cross-linking material solution to mix, and performing a hydrothermal reaction to obtain an ion-crosslinked hybrid graphene hydrogel (b) freeze-drying the ionically crosslinked hybrid graphene hydrogel obtained in step (a) to obtain ionically crosslinked hybrid graphene aerogel, and (c) putting the ion-crosslinked hybrid graphene aerogel obtained in step (b) into the melted phase change material, waiting for the phase change material to be adsorbed to saturation, and cooling naturally.