| 摘要 |
PURPOSE:To obtain activated carbon having pores of suitable shape based on a result of specifying a pore structure of a porous carbon to be used for an electrode material of an electric double layer capacitor by an image analyzing method. CONSTITUTION:When a shape of pores of activated carbon is specified by an image analyzing method by a transmission type electron microscope, the pores which are assumed to have a conventional cylindrical shape have a slit state or an elliptical state. Thus, aqueous solution electrolyte is effective for an electrode material having pores of a slit width and a slit length of a range of 1.5 to 3 times as large as a diameter of a water molecule, and organic electrolyte solution is optimum for an electrode material having pores of (ion size +2 or more) of solvated ions of the solution in an electronic double layer capacitor having a large electrostatic capacity. |
