| 초록 |
The composite electrodes for supercapacitors have been prepared via chemical polymerization of pyrrole on the surface of porous graphite fiber matrix. Their capacitance properties have been investigated with cyclic voltammetry, ac impedance spectroscopy and charge/discharge test. These electrodes show specific capacitance of approximately 400 F/g and coulombic efficiency of 96~99%, indicating that the dipping method is quite suitable for the modification of carbon based porous graphite fiber to improve the performance of the electrode which can be used in supercapacitors. |
