| 초록 |
The application of conducting polymers as the electrode of secondary batteries has been attempted by many research workers since they have several important characteristics such as longer cyclic life, less self-discharge rate, endurance to overdischarge, lower cost, more flexible shape, and easier to make thin films. Among them, polyaniline(PANI) is a promising candidate for the electrode materials because it has a good redox reversibility and easily prepared with low production cost. However, the polymer electrodes have low volume energy density. Here, PANI/MWNT(multi-walled nanotube) composites were prepared by ex-situ and in-situ polymerization method to improve their electrical property. And the dc conductivities of PANI/MWNT according to contents and diameter size of MWNT were measured by four-point probe. Also the morphology of the PANI/MWNT composite was investigated by field emission scanning electron microscope(FE-SEM) and transmission electron micro scope(TEM). |
