Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97276
Title: Improved cyclability of lithium-ion battery anode using encapsulated V2O3 nanostructures in well-graphitized carbon fiber
Authors: Wang, Yu
Zhang, Huijuan
Admar, Agita Sesara
Luo, Jizhong
Wong, Chee Cheong
Borgna, Armando
Lin, Jianyi
Issue Date: 2012
Source: Wang, Y., Zhang, H. J., Admar, A. S., Luo, J., Wong, C. C., Borgna, A., et al. (2012). Improved cyclability of lithium-ion battery anode using encapsulated V2O3 nanostructures in well-graphitized carbon fiber. RSC Advances, 2(13), 5748-5753.
Series/Report no.: RSC advances
Abstract: A novel one-dimensional (1D) V2O3@carbon nanocomposite has been successfully synthesized for the first time. In the synthesis procedure, the previously obtained V2O5·xH2O nanobelts act as template. By coating the nanobelts with a layer of polymerized C species under hydrothermal conditions followed by a calcination treatment at elevated temperature in an inert atmosphere, the V2O3@carbon nanocomposite was finally obtained. This nanocomposite consists of a well-graphitized carbon layer encapsulating the V2O3 nanostructures. The as-synthesized V2O3@carbon nanocomposite exhibits improved electrochemical performance in Li-ion batteries as the anode, showing enhanced stability, reversibility and cyclability in long-term cycles. At least a 98.5% capacity retention (660 mAh g−1) was observed after high-rate galvanostatic measurements (250 cycles). These results indicate that the V2O3@carbon nanocomposite is a promising candidate as an anode material for next generation Li-ion batteries. In addition, this nanocomposite may also be a promising material for other important applications such as supercapacitors.
URI: https://hdl.handle.net/10356/97276
http://hdl.handle.net/10220/10535
ISSN: 2046-2069
DOI: 10.1039/c2ra20472j
Rights: © 2012 The Royal Society of Chemistry.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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