| 초록 |
When we use a lithium secondary battery on high power for electric cars and energy storage devices, there are several problems including the reduction of available energy. These problems influence cell life, stability and energy efficiency. To solve 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 used as an anode. For this, we intend to introduce push-pull structure and copolymerize poly(3-(3-fluoro-4-methylhydroxyphenyl) thiophene)(PFPT) with poly(3,4-ethylenedioxythiophene)(PEDOT). It is expected that the low doping stability and low electric conductivity problem due to oxygen and water oxidation can be solved by synthesizing PEDOT-co-PFPT copolymer. Also, the characterization of a PEDOT-co-PFPT based anode was done by FR-IR, XPS, impedance analyzer, linear seep voltammetry and cyclic voltammetry. |
