▎ 摘　　要

NOVELTY - A graphite-based phase change composite film comprises base film and graphite-based phase change material comprising 5-10 wt.% multilayer graphene sheet, 2-5 wt.% carbon fiber and 60-80 wt.% long chain alkane. USE - Graphite-based phase change composite film used for battery thermal management and heat sink member (claimed). ADVANTAGE - The product has intelligent temperature control function. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of graphite-based phase change composite film comprising taking 2-5 pts. wt. adhesive and 40-70 pts. wt. graphite-based phase change material, adding 30-50 pts. wt. solvent, stirring, coating onto base film, drying, and rolling.