Conductive composite particle, method of manufacturing the same, electrode using the same, lithium ion secondary battery

A manufacturing method of a conductive composite particle, the conductive composite particle comprising:

• a core section formed of a particle having a region capable of electrochemically inserting and desorbing lithium;
• and
• a surface layer section formed of a carbon layer joined to a surface of the particle, wherein fine particles containing a metal element are dispersed in the carbon layer,
• the manufacturing method comprising:
• making the surface of the particle support a compound that contains the metal element composing the fine particles dispersed in the carbon layer;
• applying a polymer material to the surface of the particle supporting the compound that contains the metal element;
• and
• forming, as the surface layer section, a carbon layer having a porous structure including a fibrous structure from the polymer material only by a processing treatment, the particle coated with the polymer material being heated in an inert gas atmosphere to carbonize the polymer material in the treatment
• (except for a manufacturing method of a conductive composite particle where the fibrous structure is formed by evaporation or deposition after the carbonization).