▎ 摘　　要

NOVELTY - Preparation of graphene/metal-based composite material based on graphene defect control comprises ball milling spherical metal powder to obtain micro-nano sheet-shaped metal powder, adding defective graphene powder to solvent for ultrasonic dispersion treatment to obtain graphene dispersion liquid, uniformly mixing micro nano sheet metal powder and graphene dispersing liquid, filtering to obtain graphene/metallic sheet composite powder, and performing densification treatment on graphene/metallic sheet composite powder. USE - The method is used for preparing graphene/metal-based composite material based on graphene defect control. ADVANTAGE - The method enables to prepare graphene/metal-based composite material that has excellent conductive performance, and excellent material performance. The method is energy-saving and low in cost, which can effectively improve the comprehensive performance of the graphene and metal-based composites.