| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrochemical capacitor.SOLUTION: The present invention relates to a super capacitor electricity storage element which includes a positive electrode and a negative electrode respectively including electrode active materials having different average particle sizes, or a positive electrode and a negative electrode respectively including electrode active materials having different pore structures in an active material. According to the present invention, a large-capacitance electrochemical capacitor having high withstand voltage, energy density, and input and output characteristics, and also excellent in high-rate charge/discharge cycle reliability may be provided, by changing structures of electrodes and design of materials therefor. |
