Synthesis and Characterization of Ionic Liquid Based Gel Polymer Electrolyte for Rechargeable Batteries

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dc.contributor.authorGunadasa, S.M.K.M.
dc.contributor.authorGunathilaka, A.M.I.E.
dc.contributor.authorPitawala, H.M.J.C.
dc.date.accessioned2019-08-16T07:00:51Z
dc.date.available2019-08-16T07:00:51Z
dc.date.issued2018
dc.description.abstractIn the present battery market, Lithium-ion batteries have appeared as the preferred type due to its high gravimetric and volumetric energy density. However, there is a need to improve the performance of the electrolyte and electrode materials for highperformance of these devices. The objectives of this study are to synthetization of a gel polymer electrolyte and analyze the structure to understand ion-polymer and ion-solvent interactions. In this study, polyethylene oxide (PEO) based gel electrolytes were synthesized using different amounts of lithium bis(oxalato borate) (LiBOB) salt mixed with propylene carbonate (PC) and ethylene carbonate (EC) (weight ratio of 1:1). The prepared samples were characterized using Fouriertransform infrared spectroscopy (FTIR), in order to study interactions between Li+ ions, polymer, and solvent molecules. The FTIR analysis of the binary liquid electrolyte shows that a significant influence on the vibrational modes of the EC and PC molecules. A fixed amount (1g) of 1-Butyl- 1 -methylpyrrolidinium bis(trifluoromethylsulfonyl)imide (PyR14TFSI) ionic liquid was added to the liquid electrolyte system to enhance the electrochemical performance of the systems. The FTIR analysis of the liquid electrolytes with ionic liquid samples exhibits alternations on the vibrational modes of the solvent molecules and the ionic liquid since lithium ion might be coordinate with the polar groups of the system. Finally, gel polymer electrolyte (GPE) was prepared by adding different percentages of PEO (average My~2,000,000) for each liquid sample. clear changes can be observed in the vibrational modes of PEO with salt addition confirming that coordination of the lithium ion with polymer matrix. In order to use developed electrolyte in real applications, future studies on ionic conductivity and electrochemical performance will be carried out.en_US
dc.identifier.isbn9789550481194
dc.identifier.urihttp://erepo.lib.uwu.ac.lk/bitstream/handle/123456789/1708/391-2018-Synthesis%20and%20Characterization%20of%20Ionic%20Liquid%20Based%20Gel%20Polymer%20.pdf?sequence=1&isAllowed=y
dc.language.isoenen_US
dc.publisherUva Wellassa University of Sri Lankaen_US
dc.subjectMaterial Sciencesen_US
dc.subjectMineral Sciencesen_US
dc.titleSynthesis and Characterization of Ionic Liquid Based Gel Polymer Electrolyte for Rechargeable Batteriesen_US
dc.title.alternativeInternational Research Conference 2018en_US
dc.typeOtheren_US
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International Research Symposium of UWU-2018