Plastic separators with improved properties for portable power device applications
作者： A. L. Sharma , Awalendra K. Thakur
DOI: 10.1007/S11581-012-0760-6
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摘要: We report a novel clay-intercalated polymer nanocomposites (PNC) having very high ionic conductivity (~10−3 S cm−1) and improved stability properties. The suitability of the PNC films for subsequent use as separator component in energy storage devices has been explored terms desirable voltage (~4.3 V), thermal (~290 °C) mechanical (~55 MPa) stability, ion transport (t ion, ~0.99) Intercalation (polyacrylonitrile (PAN)8LiPF6 complex into nanometric channels organophilic clay confirmed by X-ray diffraction analysis. These observations agree well with transmission electron microscopy results. Impedance spectroscopy indicated bulk electrical conduction high-frequency region followed electrode polarization effects at lower frequencies. latter effect is clearly noticed admittance plots. Estimated value invariably higher PNCs compared clay-free polymer–salt film. feasibility separators explained hopping mechanism. optimized film may be expected to serve dual purpose electrolyte portable storage/conversion devices.
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