▎ 摘　　要

NOVELTY - Preparation of graphene-coated lithium metal involves adding graphene oxide to the solvent (S1) to form a pre-dispersed solution, adding lithium salt to the pre-dispersing solution and stirring to form a dispersion solution, where the weight ratio of the graphene oxide and the lithium salt is (2-27):1, adjusting the pH of the dispersion solution to 13 or more, microwave treating until the temperature of the alkalized solution is 100-120 degrees C, adjusting the pH of the cooled microwave-treated solution to 2 or less, filtering, and drying. USE - Preparation of graphene-coated lithium metal used for material for forming negative electrode of lithium ion battery.