Abstract
The effect of the addition of propylene carbonate (PC) on the ion transport behaviour of nanocomposite polymer electrolytes having composition of polyethylene oxide–hexafluorophosphoric acid–fumed silica has been studied. The ionic conductivity of 6.89 × 10−4 S cm−1 at 298 K has been obtained for these electrolytes along with good mechanical and thermal properties. The variation of 1H NMR linewidth with temperature shows line narrowing at the glass transition and melting temperature of the electrolytes which suggests the onset of long-range ion translational motion. The increase in ionic conductivity with the addition of PC is related to the transformation of these electrolytes to the amorphous phase which has been supported by X-ray diffraction results. The polymer electrolytes are thermally stable up to around 498 K and hence are suitable for various applications.
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Sharma, J.P., Yamada, K. & Sekhon, S.S. Conductivity studies of plasticized PEO–HPF6–fumed silica nanocomposite polymer electrolyte system. Ionics 18, 151–158 (2012). https://doi.org/10.1007/s11581-011-0610-y
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DOI: https://doi.org/10.1007/s11581-011-0610-y