▎ 摘 要
NOVELTY - Producing graphene composite powder material involves providing a first solution containing a dispersing agent, dispersing the graphene material in the first solution to obtain a graphene pre-dispersion, and providing a second solution containing a sand grinding auxiliary agent. The graphene pre-dispersion liquid and the metal powder are subjected to sand grinding in the second solution to obtain a sand mill dispersion liquid. The sand mill dispersion liquid is then subjected to vacuum freeze-drying to obtain a graphene composite powder material. USE - Method for producing graphene composite powder material (claimed).