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Vol. 34 No. 7 (2022): Vol 34 Issue 7, 2022

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Ionic Conductivity Studies of Biodegradable Polymer Electrolyte for Mg Ion Batteries

https://doi.org/10.14233/ajchem.2022.23683
Tejaswi Garidepalli
Department of Chemistry and Centre for Advanced Energy Studies, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur-522502, India
V. Parthiban
Department of Physics, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur-522502, India
G. Sunita Sundari
Department of Physics, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur-522502, India
Harikrishna Erothu
Department of Chemistry and Centre for Advanced Energy Studies, Koneru Lakshmaiah Education Foundation, Vaddeswaram, Guntur-522502, India

Corresponding Author(s) : Harikrishna Erothu

harikrishnaiitm@gmail.com

Asian Journal of Chemistry, Vol. 34 No. 7 (2022): Vol 34 Issue 7, 2022

Abstract

Solid biopolymer electrolyte was prepared from potato starch (PS) blended with polyvinyl pyrrolidone (PVP) polymer and magnesium sulphate (MgSO4) using solution casting technique. XRD revealed the amorphous structure and FTIR studies shows complexation of the salt with polymer with different weight ratios for PS:PVP:MgSO4. Ionic conductivity was calculated using AC impedance studies and the sample with the concentration of PS:PVP:MgSO4 (35:35:30 wt.%) is having the highest ionic conductivity 4.2142 × 10-4 S/cm at 273 K. For this sample, electrochemical studies like linear sweep voltammetry have given the stable voltage and the stable redox potential obtained from cyclic voltammetric studies. Dielectric studies have proven the charge holding capacity thus shows stability in conducting the ions. Thus, these results strengthen the solid biopolymer electrolyte to use as electrolyte in the Mg2+ ion-based batteries.

Keywords

Solid biopolymer electrolyte Potato starch Poly vinyl pyrrolidone Optical studies Magnesium ion battery
Garidepalli, T., Parthiban, V., Sunita Sundari, G., & Erothu, H. (2022). Ionic Conductivity Studies of Biodegradable Polymer Electrolyte for Mg Ion Batteries. Asian Journal of Chemistry, 34(7), 1742–1748. https://doi.org/10.14233/ajchem.2022.23683
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