| 초록 |
Conducting polymers are promising materials for electrode used in secondary batteries, because of their unique properties such as long cyclic life, low self-discharge rate, endurance to overdischarge, low cost, flexible shape, and easy to make thin films. Among them, polyaniline(PANI) is the most promising candidate for the electrode material since it has a good redox reversibility and easily prepared with low production cost. However, the polymer electrodes have low volume energy density. In this study, PANI and multi-walled carbon nanotube(MWCNT) composites were prepared by ex-situ and in-situ polymerization method to improve their electrical property. And the dc conductivities of PANI/MWCNT composite according to content and diameter size of MWCNT were measured by four-point probe. Also the morphology of the PANI/MWCNT composite was investigated by field emission scanning electron microscope(FE-SEM) and transmission electron microscope(TEM). |
