Development and characterization of biopolymer electrolyte based on gellan gum (GG) with lithium chloride (LiCl) for the application of electrochemical devices

The biopolymer electrolyte based on gellan gum with various concentrations of lithium chloride salt has been prepared using solution casting technique and optimized with high ionic conductivity of 4.08 × 10 –3  S cm −1 for the composition of 1 g gellan gum + 1.2 M wt% of LiCl using AC impedance anal...

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Bibliographic Details
Published in:Polymer bulletin (Berlin, Germany) Germany), 2023-05, Vol.80 (5), p.5291-5311
Main Authors: Aafrin Hazaana, S., Joseph, Ancemma, Selvasekarapandian, S., Meera Naachiyar, R., Vengadesh Krishna, M., Muniraj Vignesh, N.
Format: Article
Language:English
Subjects:
Battery cycles
Biopolymers
Cellulose acetate
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Chloride
Complex Fluids and Microfluidics
Complex formation
Conduction
Electrodes
Electrolytes
Fourier transforms
Gellan gum
Glass transition temperature
Ion currents
Lithium
Lithium chloride
Lithium ions
Membranes
Molecular weight
Open circuit voltage
Organic Chemistry
Original Paper
Physical Chemistry
Polymer Sciences
Polymers
Rechargeable batteries
Soft and Granular Matter
Spectrum analysis
Stability analysis
Temperature
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Summary:The biopolymer electrolyte based on gellan gum with various concentrations of lithium chloride salt has been prepared using solution casting technique and optimized with high ionic conductivity of 4.08 × 10 –3  S cm −1 for the composition of 1 g gellan gum + 1.2 M wt% of LiCl using AC impedance analysis. XRD has been used to study the crystalline/amorphous nature of the prepared membrane. The complex formation between the polymer and the salt is analyzed using FTIR technique. DSC analysis has been done to evaluate the glass transition temperature of the prepared electrolytes. Transference number measurement was done to confirm that the conduction is due to cations. CV analysis was done to measure the cyclic stability of the prepared membrane which shows an adequate result by reciprocating the pattern for 50 cycles. Primary lithium-ion conducting battery is constructed using highest lithium-ion conducting membrane. It shows an open circuit voltage of 1.88 V.
ISSN:0170-0839
1436-2449
DOI:10.1007/s00289-022-04316-w