CONDUCTIVE POLYMER/POROUS CARBON MATERIAL COMPOSITE AND ELECTRODE MATERIAL USING SAME

摘要

The purpose of the present invention is to provide: an electric double layer capacitor, a lithium ion secondary battery and a lithium ion capacitor, each of which has high electrostatic capacity and excellent cycle characteristics; an electrode material which is capable of providing the electric double layer capacitor, the lithium ion secondary battery and the lithium ion capacitor; and a composite which is used in the electrode material. This composite is a composite of a conductive polymer that has a nitrogen atom and a porous carbon material. The conductive polymer is bound to the surface of the porous carbon material. The total pore volume of the pores having a diameter of 0.5-100.0 nm as determined by a BJH method is 0.3-3.0 cm3/g, and the ratio of the pore volume of the pores having a diameter of 2.0 nm or more but less than 20.0 nm as determined by a BJH method relative to the total pore volume is not less than 10%.