Patent ID: 7247177

Claim:
A method of manufacturing an electric double layer capacitor having electrolyte, a positive electrode and a negative electrode, the method comprising: a first process for selecting the electrolyte through a simulation; and a second process for setting respective surface areas of the positive electrode and the negative electrode, wherein the first process includes the steps of: a first step for selecting cation, anion and solvent forming the electrolyte; a second step for finding a first value by calculating an energy which represents a total energy of the association complex formed of the cation and the anion while the association complex is in a stable state; a third step for finding a second value by calculating the total energy of a radical species derived from one-electron reduction of the association complex, and a third value by calculating the total energies of radical species derived from one-electron reduction of the association complex; a fourth step for finding a fourth value by subtracting the second value from the first value, and finding a fifth value by subtracting the first value from the third value; a fifth step for finding a sixth value by subtracting the fourth value from the fifth value; and a sixth step for determining whether or not the sixth value exceeds a given target value, wherein the second process sets the respective surface areas of the positive electrode and the negative electrode based on the sixth value of the electrolyte selected.