| 초록 |
In this study, we have tried to fabricate a lithium secondary battery with almost no interfacial resistance by using the same kind of materials for anode, cathode and electrolyte. Assuming that the two electrodes are used as polythiophene(PTh) derivatives, the electrolyte is also introduced into the solid polymer electrolyte(SPE) to solve the interface resistance problem. To solve the poor processability, alkoxy groups were introduced into thiophene 3-position and poly(3-alkoxythiophene) was applied to the SPE. Poly(3-methoxythiophene)(P3MOT) and poly{3-[2-(2-methoxyethoxy)ethoxy]thiophene}(P3MEET) were used, because they are expected to have little effect on Interfacial adhesion with PTh derivative electrodes. And pyrroles were copolymerized together to help in poor dissociation ability. SPE was prepared by adding a lithium salt to the synthesized polymer, and impedance and linear sweep voltammetry(LSV) were measured. |
