▎ 摘　　要

NOVELTY - Positive electrode material comprises particulate positive electrode active material, conductive auxiliary agent containing graphene oxide includes multiple of pores has average pore diameter of 1-5 micrometer on surface and carbon nanotubes has average length of 1 micrometer. The conductive auxiliary agent contains 0.4-5.0 wt.% graphene oxide has multiple of pores with respect to the total amount of the positive electrode material for the lithium ion secondary battery, and contains 0.2-1.0 wt.% carbon nanotubes. The graphene oxide has multiple of pores on the surface of the positive electrode active material. The multiple of the carbon nanotubes are supported in contact with each other. USE - Positive electrode material for lithium-ion secondary batteries. ADVANTAGE - The positive electrode material has high-rate characteristic. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a lithium ion secondary battery, which comprises separator and non-aqueous electrolyte, positive electrode and negative electrode contains positive electrode material for lithium ion secondary battery; (2) a method for manufacturing positive electrode for lithium ion secondary battery, which involves wet-ball milling dispersion of graphene oxide to convert the graphene oxide into graphene oxide has multiple of pores has average pore diameter of 1-5 micrometer on the surface, freeze-drying dispersion liquid of graphene oxide treated with the wet ball mill, positive electrode active material, binder, and graphene oxide has multiple of pores, preparing positive electrode slurry by mixing carbon nanotubes has average length of 1 micrometer or more and solvent, applying positive electrode slurry to surface of the positive electrode current collector and drying to form positive electrode layer; and (3) a method for manufacturing lithium ion secondary battery, which involves using positive electrode, negative electrode, separator, and non-aqueous electrolyte, assembling lithium-ion secondary battery, discharging the lithium ion secondary battery to reduce portion of the graphene oxide has multiple of pores in the positive electrode layer.