▎ 摘　　要

NOVELTY - Lithium-ion secondary battery comprises a positive electrode (100) comprising a positive electrode active material layer, a negative electrode, and an electrolyte, where the positive electrode active material layer comprises a multiple of multi-layer graphene, an active material comprising a multiple of active material particles and a binder, where one of the multiple of the multi-layer graphene is in surface contact with one of the multiple of the active material particles, and where the one of the multiple of the multi-layer graphene is in surface contact with the other one of the multiple of the multi-layer graphene. USE - Lithium-ion secondary battery used for an electric vehicle (claimed). ADVANTAGE - The lithium-ion secondary battery has high capacity and ionic conductivity. DETAILED DESCRIPTION - An active material comprising a multiple of active material particles represented by a general formula LiNixMnyCo1-x-yO2, x being larger than 0, y being larger than 0, x+y being smaller than 1. An INDEPENDENT CLAIM is included for an electric vehicle, which comprises lithium-ion secondary battery and drive motor unit. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a positive electrode. 100Positive electrode 101Current collector 102Active material layer