| 초록 |
When we use lithium secondary battery on high power for electric cars and energy storage devices, there are several problems with reducing available energy. These problems influence cell life, stability and energy efficiency. In order to them, we developed a completely new type of lithium secondary battery to clear the interfacial resistance between electrode and electrolyte. In this study, Polythiophene(PTh) derivatives were introduced into solid polymer electrolyte(SPE). For this, 3-alkoxythiophenes were applied, because PTh has had a lack of polar elements compared to conventional SPE materials and bad working property by the attraction between molecular chains. Then this study focused on the electrochemical property of poly(3-alkoxythiophene) based SPE on its alkoxy chain length. And the characterization of poly(3-alkoxythiophene) based SPE was done by FR-IR, 1H NMR, impedance analyzer and linear sweep voltammetry. |
