Abstract
MG30 is natural rubber grafted with 30% poly(methyl methacrylate). Gel polymer electrolytes containing MG30–LiCF3SO3–X (X = propylene carbonate, ethylene carbonate) are prepared by solution casting technique. The polymer–salt complexes were investigated using Fourier-transformed infrared. The ionic conductivity of the electrolytes are determined by the ac impedance studies over the temperature range of 303–383 K and is observed to obey the Vogel–Tamman–Fulcher (VTF) rule. The Li+ transference number obtained using the Bruce and Vincent method is <0.3. The Li/Li+ interface stability is established and the electrolytes were found to be able to withstand a voltage of more than 4.2 V.
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Acknowledgement
Thanks to Universiti Teknologi MARA and MOSTI for funding this research. This work was supported by IRPA grant 09-02-01-0068EA0068.
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Ali, A.M.M., Yahya, M.Z.A., Bahron, H. et al. Electrochemical studies on polymer electrolytes based on poly(methyl methacrylate)-grafted natural rubber for lithium polymer battery. Ionics 12, 303–307 (2006). https://doi.org/10.1007/s11581-006-0052-0
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DOI: https://doi.org/10.1007/s11581-006-0052-0