▎ 摘　　要

NOVELTY - Preparing graphene-based lithium metal composite micro-rods comprises (i) subjecting slurry to wet spinning, and coagulating in a rotating coagulation bath to obtain a graphene oxide-based gel microrod slurry; where the slurry includes graphene oxide and water, (ii) subjecting the graphene oxide-based gel micro rod slurry to a hydrothermal reaction and filtering to obtain graphene-based micro rods, and (iii) adding graphene-based micron rod to molten lithium metal under a protective gas atmosphere, and stirring. USE - The graphene-based lithium metal composite micro-rods is used as lithium metal cathode active material without dendritic crystal generation in the battery circulation process. ADVANTAGE - The micro-rods has over-long cycle stability.