▎ 摘　　要

NOVELTY - A graphene dispersion comprises graphene and polymer having a weight average molecular weight of 10000-800000 dispersed in a solvent. The graphene dispersion has a viscosity (V1) of 500-10000 mPa.second as measured at 25 degrees C and a rotation speed of 50 rpm using a B-type viscometer. The ratio of viscosity (V2) of the graphene dispersion measured at 25 degrees C and 5 rpm to the viscosity (V1), is 1.2-5.0. USE - Graphene dispersion used for forming graphene resin powder for electrode of batteries (all claimed) such as lithium ion secondary battery, electrical double layer capacitor and lithium ion capacitor. ADVANTAGE - The graphene dispersion produces secondary batteries having excellent discharge capacity retention.