▎ 摘　　要

NOVELTY - A graphene/organic solvent dispersion liquid comprises graphene dispersed in an organic solvent. The ratio of difference between the moisture content (W2) (%mass) of graphene as measured by Karl Fisher method at 250 degrees C and the moisture content (W1) (%mass) of graphene as measured by Karl Fisher method at 130 degrees C, with respect to the solid fraction (G) (%mass) of graphene is 0.005-0.05. USE - Graphene/organic solvent dispersion liquid is used for manufacturing electrode (claimed) of lithium ion battery. Can also be used for energy storage material, electronic device, and composite material. ADVANTAGE - The graphene/organic solvent dispersion liquid has excellent dispersibility and adsorption performance of graphene, without causing electrolysis of water, and provides electrode with excellent electroconductivity and ionic conductivity, and high discharge performance. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of lithium ion battery electrode, which involves mixing the graphene/organic solvent dispersion liquid, and a lithium ion battery active substance; and (2) manufacture of graphene/organic solvent dispersion liquid, which involves reducing the graphene oxide dispersed in a dispersion medium containing water, mixing an intermediate material dispersion liquid obtained after the reduction process and an organic solvent, stirring the intermediate material dispersion liquid at shear rate of 5000-50000/second, removing a portion of moisture content from the intermediate material dispersion liquid by N-methylpyrrolidone-containing solvent addition and suction filtration process, or distillation process.