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Published in: Polymer Bulletin 12/2020

20-12-2019 | Original Paper

Conducting biopolymer electrolyte based on pectin with magnesium chloride salt for magnesium battery application

Authors: S. Kiruthika, M. Malathi, S. Selvasekarapandian, K. Tamilarasan, T. Maheshwari

Published in: Polymer Bulletin | Issue 12/2020

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Abstract

Currently, biopolymer electrolytes are attracting a great deal of interest as substitute for synthetic polymer electrolytes in electrochemical devices, as they are carbon neutral, sustainable, reduce dependency on non-renewable fossil fuels and easily biodegradable. Some of the biopolymers under research are chitosan, pectin, agar–agar, cellulose acetate and carrageenan. The current work deals with the study of ion conducting polymer electrolyte, pectin with magnesium chloride salt for magnesium battery application. Biopolymer electrolytes of different compositions of pectin with different concentrations of magnesium chloride salt are prepared by solution casting technique and subjected to various studies like by X-ray diffraction (XRD), Fourier transform infrared (FTIR), differential scanning calorimetry (DSC), AC impedance spectroscopy and linear sweep voltammetry (LSV). XRD analysis has been used to identify the amorphous/crystalline nature of the sample. The complex formation between the polymer pectin and the magnesium chloride salt has been analyzed by FTIR spectroscopy. DSC analysis is a thermo-analytical technique which is used to observe the glass transition temperature (Tg) of the samples. AC impedance technique has been used to find the ionic conductivities of the sample. The electrochemical stability of the polymer electrolyte has been analyzed by linear sweep voltammetry. Among the prepared polymer electrolytes, 30 M wt% pectin: 70 M wt% MgCl2 offers the highest ionic conductivity of 1.14 × 10−3 S cm−1. The electrochemical stability of the highest conducting sample is 2.05 V. The primary magnesium battery has been constructed using the highest conducting sample, 30 M wt% pectin: 70 M wt% MgCl2, and the battery performance has been studied.

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Literature
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go back to reference Manjuladevi R, Thamilselvan M, Selvasekarapandian S, Christopher Selvin P, Mangalam R, Monisha S (2017) Preparation and characterization of blend polymer electrolyte film based on poly(vinyl alcohol)-poly(acrylonitrile)/MgCl2 for energy storage devices. Ionics 24(4):1083–1095. https://doi.org/10.1007/s11581-017-2273-9CrossRef Manjuladevi R, Thamilselvan M, Selvasekarapandian S, Christopher Selvin P, Mangalam R, Monisha S (2017) Preparation and characterization of blend polymer electrolyte film based on poly(vinyl alcohol)-poly(acrylonitrile)/MgCl2 for energy storage devices. Ionics 24(4):1083–1095. https://​doi.​org/​10.​1007/​s11581-017-2273-9CrossRef
Metadata
Title
Conducting biopolymer electrolyte based on pectin with magnesium chloride salt for magnesium battery application
Authors
S. Kiruthika
M. Malathi
S. Selvasekarapandian
K. Tamilarasan
T. Maheshwari
Publication date
20-12-2019
Publisher
Springer Berlin Heidelberg
Published in
Polymer Bulletin / Issue 12/2020
Print ISSN: 0170-0839
Electronic ISSN: 1436-2449
DOI
https://doi.org/10.1007/s00289-019-03071-9

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