| 초록 |
Solid polymer electrolytes (SPEs), which are composed of poly(ethylene oxide)-poly(vinylidene fluoride) matrix, BaTiO3, and lithium salt, propylene carbonate were prepared in order to study the influence of BaTiO3 content on the electrochemical characterization of the composites. The ionic conductivity of the SPEs was monitored by AC impedance, and the crystallinity of the SPEs was evaluated by using XRD, and the morphology of the SPEs was observed by SEM image. The studies of porosity, crtstallinity and ionic conductivity of solid polymer electrolytes were performed as a function of BatiO3 content. The addition of BatiO3 can greatly enhance the Li ion behavior and ionic conductivity of polymer electrolytes. Also, these ion conductivity characteristics are dependent on crystallinity with BatiO3 content. |
