▎ 摘　　要

NOVELTY - A graphene-organic solvent dispersion liquid comprises graphene dispersed in an organic solvent, which forms graphene film, and has solid content ratio of 0.005-0.012. The graphene film has a surface roughness of 1.0 mu m or less measured at a measurement pitch of 0.100 mu m using 50 times objective lens by a laser microscope at a wavelength of 408 nm. USE - Graphene-organic solvent dispersion liquid is used for forming graphene electrode active material and electrode paste (all claimed). ADVANTAGE - The dispersion liquid has uniform graphene dispersion and does not aggregate. The dispersion liquid has high electroconductivity and ionic conductivity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) manufacture of graphene electrode active material composite, which involves mixing the graphene-organic solvent dispersion and electrode active material particles, and drying; and (2) manufacture of electrode paste, which involves mixing electrode active material, binder and the graphene-organic solvent dispersion.