Ionic liquid mediated nano-composite polymer gel electrolyte for rechargeable battery application |
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| Authors: | Shalu Kataria Yogendra L Verma Himani Gupta Shishir K Singh Nitin Srivastava Ravindra Dhar |
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| Affiliation: | 1. Centre of Material Sciences, IIDS, University of Allahabad, Allahabad, India;2. Department of Physics, Ionic Liquid and Solid State Ionics Laboratory, Institute of Science, Banaras Hindu University, Varansi, India;3. Centre of Material Sciences, IIDS, University of Allahabad, Allahabad, India https://orcid.org/0000-0002-4685-6299 |
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| Abstract: | ABSTRACTNano-composite polymer gel electrolytes (NPGEs) based on polymer poly(vinylidene fluoride-co-hexafluoropropylene) PVdF-HFP, ionic liquid, 1-butyl-3- methylimidazolium bis(trifluoromethanesulfonyl)imide BMIMTFSI, Li-salt along with the addition of SiO2 nanoparticles have been synthesized and characterized by various techniques. Prepared NPGEs show high room temperature ionic conductivity (~10?3 S/cm) and have a wide electrochemical window (ECW) (~3.3–3.5 V). The galvanostatic charge/discharge profile was studied by sandwiching best performing NPGEs between a LiFePO4 cathode and lithium metal anode. The specific discharge capacity of the cell (Li/NPGE/LiFePO4) room temperature at 0.1C rate is found to be 138 mAh/g. |
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| Keywords: | Li-Battery Nano-composite polymer gel electrolyte membranes (NPGEs) Ionic Liquid Galvanostatic Charging and Discharging |
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