▎ 摘　　要

NOVELTY - Graphene dispersion contains graphene, a (meth) acrylic polymer having a hydroxy group, and a dispersion medium, where the average thickness of the graphene is 0.3-10 nm. The content of the (meth) acrylic polymer having a hydroxy group with respect to 100 pts. wt. of graphene is 10-300 pts. wt. The viscosity of the (meth) acrylic polymer having a hydroxy group at 25 degrees C and a shear rate of 1 second-1 is 0.1-100 Pa.second or less. USE - The graphene dispersion is used for a lithium-ion battery positive electrode (claimed). ADVANTAGE - The graphene dispersion is excellent in the dispersibility and fluidity of graphene, and is excellent in the uniformity of graphene when mixed with the positive electrode active material. The positive electrode of the lithium ion battery of the present invention can improve the battery life. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a previous lithium-ion battery positive electrode having a mixture layer containing a positive electrode active material, the graphene, and the (meth) acrylic polymer having a hydroxy group, on a current collector.