An ionic liquid based gel polymer electrolyte to be employed in power generating applications
Abstract
Ionic liquid (IL) based gel polymer electrolytes (GPEs) are being investigated extensively at present as substitutes for conventional GPEs based on a polymer, a salt and solvents. The main reason behind this is the drawbacks in usage of solvents. IL based GPEs have been employed for energy storage devices such as batteries and super capacitors due to their interesting mechanical, physical and electrochemical properties. This study focused on synthesis preparation and characterization of an IL based GPE consisting of poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-co-HFP), zinc trifluoro metha -nesulfonate (Zn(CF3SO3)2 - ZnTF) and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (1E3MITF). Thin film samples were prepared using solvent casting method. The optimized composition was found to be 1 PVdF-co-HFP: 1 1E3MITF: 3 ZnTF (by weight basis). This mechanically stable, thin film has the maximum room temperature conductivity of 7.42×10-3 S cm-1. Conductivity variation with temperature follows Vogel - Tamman - Fulcher (VTF) behavior confirming the relation of conductivity mechanism with the free volume theory. The IL based GPE is a purely an ionic conductor having a considerable anionic contribution. It shows stability up to 2.5 V which is very much convenient from a practical point of view. Oxidation and reduction of Zn takes place at the potentials of 0.5 V and –0.5 V, respectively. In addition, Zn platting and stripping occurs only on the Zn electrodes but not on the stainless steel (SS) electrodes. Impedance measurements taken for the GPE continuously for a long period of time exhibited a satisfactory stability with Zn electrodes.References
Agrawal RC, Sahu DK. 2013. Mg2+ ion conducting polymer electrolytes : Materials characterization and all solid state battery performance studies. Journal of Physical Science and Applications 3(1): 9-17.
Chaurasia SK, Singh RK, Chandra S. 2011. Structural and transport studies on polymeric membranes of PEO containing ionic liquid EMIM-TY : Evidence of complexation. Solid State Ionics 183: 32-39.
Deraman SK, Mohamed NS, Subban RHY. 2013. Conductivity and electrochemical studies on polymer electrolytes based on poly vinyl (chloride)-ammonium triflate-ionic liquid for proton battery. International Journal of Electrochemical Science 8: 1459-1468
Hashmi SA, Kumar A, Tripathi SK. 2005. Investigations on electrochemical super capacitors using polypyrrole redox electrodes and PMMA based gel electrolytes. European Polymer Journal 41: 1373-1379.
Jayathilake YMCD, Bandara LRAK, Vidanapathirana KP, Perera KS. 2014. Optimization of conductivity of the gel polymer electrolyte based on polymethylmethacrylate (PMMA). Sri Lankan Journal of Physics 30: 27-33.
Jayathilake YMCD, Perera KS, Vidanapathirana KP. 2015. Preparation and characterization of a polyacrylonitrile-based gel polymer electrolyte complexed with 1 methyl-3 propylimidazolium iodide. Journal of Solid State Electrochemistry 19(8): 2199-2203.
Juan P, Tafur G, Antonio J, Fernandez R. 2015. Interaction between Zn2+cations and n-methyl-2-pyrrolidone in ionic liquid-based Gel Polymer Electrolytes for Zn batteries, Journal of Electrochim Acta 176: 1447- 1453.
Kim B, Winslow R, Lin I, Gururangan K, Evans J, Wright P. 2015. Layer-by-layer fully printed Zn-MnO2 batteries with improved internal resistance and cycle life. Journal of Physics 660: 012009- 012013.
Kumar D, Hashmi SA. 2010. Ionic liquid based sodium ion conducting gel polymer electrolytes. Solid State Ionics 181: 416-423
Kuo HH, Chen WC, Wen TC, Gopalan A. 2002. A novel composite gel polymer electrolyte for rechargeable lithium batteries. Journal of Power Sources 110: 27-33.
Liew CW, Ong YS, Lim JY, Lim CS, Teoh KH and Ramesh S. 2013. Effect of ionic liquid on semi crystalline poly(vinylidenefluoride-co-hexafluoropropylene) Solid copolymer electrolytes. International Journal of Electrochemical Science 8: 7779-7794.
Liu Z, Abedin SZE, Endres F. 2014. Electrodeposition and stripping of zinc from an ionic liquid polymer gel electrolyte for rechargeable zinc-based batteries. Journal of Solid State Electrochemistry 18: 2683-2691.
Pandey GP, Kumar Y, Hashmi SA. 2010. Ionic liquid incorporated polymer electrolytes for super capacitor applications. Indian Journal of Chemistry 49A: 743-751.
Perera KS, Vidanapathirana KP, Jayamaha B, Wewagama L, Dissanayake MAKL, Senadheera GKR, Vignarooban K. 2017. PEO based nano composite polymer electrolyte for redox capacitor. Journal of Solid State Electrochemistry 21: 3459-3465.
Rajendran S, Mahendran O, Kannan R. 2002. Characterization of [(1-x) PMMA – x PVdF] polymer blend electrolyte with Li+ ion. Fuel 81: 1077-1081.
Ramesh S, Lu SC, Morris E. 2012. Towards Mg ion conducting polyvinylidenefluoride based solid polymer electrolytes with great prospects : Ionic and di electric behaviours. Journal of Taiwan Institute of Chemical Engineers 43: 806-812.
Shamsipur M, Beigi AAM, Teymouri M, Pourmortazavi SM, Irandoust M. 2010. Physical and electrochemical properties of ionic liquids 1-ethyl-3-methylimidazoliumtetrafluoroborate, 1-butyl-3-methylimidazolium trifluoromethanesulfonate and 1-butyl-1-methylpyrrolidinium bis(trifluoromethylsulfonyl)imide. Journal of Molecular Liquids 157: 43–50.
Singh R, Bhattacharya B, Gupta M, Khan ZH, Tomar SK, Singh V, Singh PK. 2017. Structural and electrical properties of ionic liquid doped polymer gel electrolyte for dual energy storage devices. International Journal of Hydrogen Energy 42(21): 14602-14607.
Tripathi SK, Gupta A, Jain A, Kumari M. 2013. Electrochemical studies on nan composite polymer electrolytes. Indian Journal of Pure and Applied Physics 51: 358-361.
Wang A, Xu H, Zhou Q, Liu X, Li Z, Gao R, Liu X, Zhang L. 2017. Electrochemical performances of a new solid composite polymer electrolyte based on hyper branched star polymer and ionic liquid for lithium ion batteries. Journal of Solid State Electrochemistry 10: 2355-2364.
Wang J, Song S, Muchakayala R, Hu X, Liu R. 2017. Structural, electrical and electrochemical properties of PVA based biodegradable gel polymer electrolyte membranes for Mg-ion battery applications. Ionics 23(7): 1759-1769.
Xu JJ, Ye H, Huang J. 2005 Novel zinc ion conducting polymer gel electrolytes based ionic liquids. Electrochemistry Communications 7: 1309-1317.
Downloads
Published
Issue
Section
License
From Volume 7 (2016) onwards, all articles published in Ruhuna Journal of Science are Open Access articles published under the Creative Commons CC BY-NC 4.0 International License. This License permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
Copyright on any research article published in RJS is retained by the respective author(s).
Authors who publish with this journal agree to the following terms:
a) Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License CC-BY-NC 4.0 International, that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
b) Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
c) Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
