NOVELTY - The material comprises a conductive barrier layer (BL) connected with a cathode active material core (10) that is extended from a positive active material surface. The positive active material surface is formed on an antimony zinc oxidate layer that is formed on the cathode active material core. The conductive barrier layer is formed on an antimony zinc oxidate and antimony tin-oxide combination. A pore (20V) is formed with a space among nano size particles (20P) that are arranged in the conductive barrier layer. Average diameter of each nano size particle is 1-200 nm.    USE - Cathode active material for a secondary battery (claimed) such as nickel-hydrogen battery, lithium battery and lithium-ion battery. Uses include but are not limited to a smart phone, a power supply of a mobile tool, an IT instrument e.g. handheld computer and electronic paper, a bicycle and an electric vehicle.    ADVANTAGE - The conductive barrier layer is formed with the antimony zinc oxidate and antimony tin-oxide combination for passivizing a surface of the cathode active material core so as to prevent the cathode active material core from being exposed to electrolyte, generate large parasitic resistance of a battery based on charging and discharging cycle of the battery, control structural collapse of the cathode active material core, maintain charge and discharge of high efficiency and high speed of the battery due to low internal resistance, improve electron conductivity and ion transfer capability and easily deliver metal ion i.e. lithium ion, to the cathode active material core, so that the material can be economically and massively manufactured without need to perform a thermal process and separate a plastic process, and service life of the battery can be improved. The battery has low power consumption.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) a cathode active material manufacturing method    (2) a secondary battery.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a cathode active material.    Conductive barrier layer (BL)    Electrolyte (EL)    Cathode active material core (10)    Nano size particles (20P)    Pore (20V)