Please use this identifier to cite or link to this item: https://idr.l2.nitk.ac.in/jspui/handle/123456789/15489
Title: GeO2/ZnWO4@CNT nanocomposite as a novel anode material for lithium-ion battery
Authors: Brijesh K.
Nagaraja H.S.
Issue Date: 2020
Citation: Journal of Solid State Electrochemistry Vol. 24 , 10 , p. 2525 - 2533
Abstract: Single-walled carbon nanotube (SWCNT) wrapped GeO2/ZnWO4 nanocomposite was prepared by single-step solvothermal method. In this work, GeO2/ZnWO4 nanocomposites were prepared by varying the molar percentage of GeO2 and by further adding SWCNT for the composite to boost the electrochemical performance. The prepared GeO2/ZnWO4 nanocomposites and GeO2/ZnWO4@CNT nanocomposite are used as anode material for lithium-ion battery (LIB). As expected, GeO2/ZnWO4@CNT nanocomposite exhibits higher capacities and good rate capability than the GeO2/ZnWO4 nanocomposite. The GeO2/ZnWO4@CNT nanocomposite exhibits 930 mAh g−1 discharge capacity and 533 mAh g−1 charge capacity for the initial cycle at 100 mAh g−1 in the voltage range of 0.01–3 V (vs. Li+/Li). Even at high current density of 500 mAh g−1, GeO2/ZnWO4@CNT nanocomposite shows 231 mAh g−1 and 257 mAh g−1 charge/discharge capacity which are higher than that of GeO2/ZnWO4 nanocomposite. The GeO2/ZnWO4@CNT nanocomposite delivers 75.8% capacity retention and 100% coulombic efficiency even after 400 cycles at 300 mAh g−1. These results direct that GeO2/ZnWO4@CNT nanocomposite is a good negative electrode for lithium-ion battery. [Figure not available: see fulltext.]. © 2020, Springer-Verlag GmbH Germany, part of Springer Nature.
URI: https://doi.org/10.1007/s10008-020-04798-6
http://idr.nitk.ac.in/jspui/handle/123456789/15489
Appears in Collections:1. Journal Articles

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