| abstract |
In the pore distribution of the carbonaceous material obtained from the nitrogen adsorption isotherm, the pore volume having a pore radius of 10 Å or less is 70% or less of the total pore volume, and the specific surface area measured by the nitrogen adsorption BET method is 1 to 500 m 2 / g The characteristic carbonaceous material is optimal for penetrating the non-aqueous electrolyte solution to the inside and adsorbing the ion molecules on the surface to form an electric double layer. An electric double layer capacitor assembled using a polarized electrode made of carbonaceous material has high voltage, high energy density, high capacity, long repetition life, and miniaturization. |