▎ 摘　　要

NOVELTY - Positive electrode comprises a first active substance, a second active substance, and glass, in which at least a portion of the surface of the first active material has a region covered with the glass and at least a portion of the surface of the glass has a region covered with the second active material, or a first active material, a second active material, glass, and a conductive material, in which at least a portion of the surface of the first active material has the glass-covered area and at least a portion of the surface of the glass has a region covered with the second active material and the conductive material, the second active material, and the conductive material, where the first active material comprises a first composite oxide compound (I), the second active material comprises a second composite oxide compound (II), and the glass has lithium ion conductivity. USE - The positive electrode is used for secondary battery for vehicle, power storage system and electronic device (all claimed). ADVANTAGE - The secondary battery has high purity, high performance, and high reliability. DETAILED DESCRIPTION - Positive electrode comprises a first active substance, a second active substance, and glass, in which at least a portion of the surface of the first active material has a region covered with the glass and at least a portion of the surface of the glass has a region covered with the second active material, or at least a portion of the surface of the first active material covers a region covered with the glass and the second active material, or a first active material, a second active material, glass, and a conductive material, in which at least a portion of the surface of the first active material has the glass-covered area and at least a portion of the surface of the glass has a region covered with the second active material and the conductive material, or at least a portion of the surface of the first active material has a region covered with the glass, the second active material, and the conductive material, where the first active material comprises a first composite oxide compound (I): LiM1O2, the second active material comprises a second composite oxide compound (II): LiM2PO4, and the glass has lithium ion conductivity. M1 = Fe, Ni, Co, and/or Mn;and M2 = Fe, Ni, Co and/or Mn. An INDEPENDENT CLAIM is included for a method for producing the positive electrode, which involves mixing lithium cobalt oxide having magnesium, fluorine, aluminum, and nickel and acetylene black to prepare a positive electrode active material composite, mixing the positive electrode active material composite, a binder, and a solvent to prepare a slurry, applying the slurry to a positive electrode current collector to prepare an electrode layer, and pressurizing the electrode layer, or mixing lithium cobalt oxide having magnesium, fluorine, aluminum, and nickel, graphene oxide, binder, and a solvent to prepare a slurry, applying the slurry to a positive electrode current collector to prepare an electrode layer, and performing chemical reduction and thermal reduction on the electrode layer.