▎ 摘　　要

NOVELTY - Positive electrode material (1) comprises a positive electrode active material (2) and nanocarbon particles (3) arranged on the surface of the positive electrode active material. The nanocarbon particles contain nanodiamonds having oxygen atom-containing functional groups on the surface, or nanodiamonds having a graphene layer formed on the surface. The nanocarbon particles have a peak at 2θ of 43-44° in X-ray diffraction analysis. USE - The positive electrode material is used in electrode for lithium ion battery (all claimed). ADVANTAGE - The positive electrode material enables the production of a battery having performance superior to that of a general battery, and is excellent in fixing force between the positive electrode active material and the particles, can be easily produced, and is excellent in environmental adaptability. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the positive electrode material. 1Positive electrode material 2Positive electrode active material 3Nanocarbon particles