▎ 摘　　要

NOVELTY - A graphene slurry material is prepared by getting graphite, plugging agent and oxidizing agent at ratio of 1 g:3-30 ml:0.1-3.0 g, mixing, reacting, washing, drying to obtain graphite layer compound, puffing to obtain expanded graphite body, adding with dispersing additive and solvent at ratio of 1.0 -10.0:0.1-2.0:100.0, and mixing. The plugging agent is 65-98 wt.% nitric acid, 65-98% nitric acid and organic acid mixture, and 65-98 wt.% nitric acid and 80-98 wt.% phosphoric acid mixture. USE - Method for preparing graphene slurry material used for lithium ion battery and graphene anti-corrosive paint (claimed). ADVANTAGE - The paint overcomes sulfur containing graphene material defect. The method realizes industrialization.