SnO2 Quantum Dots Distributed along V2O5 Nanobelts for Utilization as a High-Capacity Storage Hybrid Material in Li-Ion Batteries |
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| Authors: | I. Neelakanta Reddy Bhargav Akkinepally Venkatesu Manjunath Gaddam Neelima Mogalahalli V. Reddy Jaesool Shim |
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| Affiliation: | 1.School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Korea;2.Department of Physics, Sri Padmavati Mahila Visvavidyalayam, Tirupati 517502, India;3.Department of Physics, National Taiwan University, Taipei 10617, Taiwan;4.Nouveau Monde Graphite, Saint Michel Des Saints, QC J0K 3B0, Canada |
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| Abstract: | In this study, the facile synthesis of SnO2 quantum dot (QD)-garnished V2O5 nanobelts exhibiting significantly enhanced reversible capacity and outstanding cyclic stability for Li+ storage was achieved. Electrochemical impedance analysis revealed strong charge transfer kinetics related to that of V2O5 nanobelts. The SnO2 QD-garnished V2O5 nanobelts exhibited the highest discharge capacity of ca. 760 mAhg−1 at a density of 441 mAg−1 between the voltage ranges of 0.0 to 3.0 V, while the pristine V2O5 nanobelts samples recorded a discharge capacity of ca. 403 mAhg−1. The high capacity of QD-garnished nanobelts was achieved as an outcome of their huge surface area of 50.49 m2g−1 and improved electronic conductivity. Therefore, the as-presented SnO2 QD-garnished V2O5 nanobelts synthesis strategy could produce an ideal material for application in high-performance Li-ion batteries. |
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| Keywords: | V2O5/SnO2 nanostructures high specific capacity energy storage Li-ion battery |
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