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Effect of lithium salt concentration in PVAc/PMMA-based gel polymer electrolytes

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Abstract

Hybrid solid polymer electrolyte films comprising of poly(vinyl acetate) (PVAc), poly(methyl methacrylate) (PMMA), LiClO4, and propylene carbonate are prepared by solution casting technique by varying the salt concentration. In this study, PVAc/PMMA polymer blend ratio is fixed as 25:75 on the basis of conductivity and mechanical stability of the film. X-ray diffraction, Fourier transform infrared impedance, thermogravimetry/differential thermal analysis and scanning electron microscopy studies are carried out for the polymer electrolytes. The maximum ionic conductivity is found to be 4.511 × 10−4 S cm−1 at 303 K for the plasticized polymer electrolyte with 8 wt.% of LiClO4. The ionic conductivity is found to decrease with an increase of LiClO4 concentration.

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Authors and Affiliations

  1. Department of Physics, Alagappa University, Karaikudi, 630 003, India

    S. Rajendran, V. Shanthi Bama & M. Ramesh Prabhu

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  1. S. Rajendran
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  2. V. Shanthi Bama
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  3. M. Ramesh Prabhu
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Correspondence to S. Rajendran.

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Rajendran, S., Bama, V.S. & Prabhu, M.R. Effect of lithium salt concentration in PVAc/PMMA-based gel polymer electrolytes. Ionics 16, 27–32 (2010). https://doi.org/10.1007/s11581-009-0329-1

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  • DOI: https://doi.org/10.1007/s11581-009-0329-1

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