| 摘要 |
PROBLEM TO BE SOLVED: To provide a conductive composite particle superior in the conductivity and the permeability of an electrolyte, and further to provide a secondary battery positive electrode manufactured by use of such conductive composite particle, and a secondary battery which is manufactured by use of such an electrode and is superior in high output property and rapid charging capability.SOLUTION: A conductive composite particle comprises: a conductive agent including carbon; and a secondary aggregate of an active material. The conductive agent has a part covering an outer surface of the secondary aggregate, and a part covering a surface of the active material inside a fine pore of the secondary aggregate. The conductive composite particle has a pore volume of 0.01-0.40 cc/g, and an average pore diameter of 50-1000 nm. With the conductive composite particle, a secondary battery superior in high output property and rapid charging capability can be obtained. |
