The novel polymer electrolyte nanocomposite composed of poly(ethylene oxide), lithium triflate and mineral clay

摘要: This work has demonstrated that the addition of optimum content D-2000 modified montmorillonite enhances ionic conductivity poly(ethyl oxide) (PEO) based electrolyte by nearly sixteen times more than plain system. Specific interactions among silicate layer, ethyl oxide and lithium cation have been investigated using alternating current impedance (A.C. impedance), differential scanning calorimetry (DSC) Fourier-transform infrared (FT-IR). The DSC characterization confirms initial clay is able to enhance PEO crystallinity due interaction between negative charge from cation. Three types complexes are present; complex I present in phase, II resides at interphase, III located within domain. Complex plays key role stabilizing these two microstructure phases. FT-IR spectra confirm existence dissolve salts, easier system thus increases fraction free ions.