Synthesis of vanadium oxide/carbon nanotubes for anodes for lithium-ion batteries

6^th International Conference and Exhibition on Materials Science and Engineering

September 12-14, 2016 Atlanta, USA

Baorui Jia

University of Science and Technology Beijing, PR China

Posters & Accepted Abstracts: J Material Sci Eng

Abstract :

Vanadium oxides are considered as the most promising anode materials for lithium-ion batteries because they have high theoretical reversible capacity, abundance, low cost, and eco-friendly properties. However, the dramatic volume variation could take place during practical discharge/charge processes, which leads to in the pulverization of electrodes and poor cycling stability. Here hollow porous VOx/C tubes were synthesized by combining solvothermal and annealing process. The VOx/amine nanotubes were firstly prepared, and then transformed into VOx/C nanotubes. In the heating process, the intercalated amines in the VOx/amine nanotubes escaped, resulting in the formation of the porous walls. Such hollow porous VOx/C nanoscrolls have a high capacity and long cyclic performance as the anode of lithium-ion batteries. The unique structure of the hollow hierarchical porous nanoscrolls with low crystallinity could significantly suppress irreversible Li+ trapping and improve Li+ diffusion kinetics.

Biography :

Baorui Jia has completed his PhD from University of Science and Technology Beijing. He is now a Lecturer of Institute for Advanced Materials and Technology, University of Science and Technology Beijing. He is interested in synthesis and energy storage of nanomaterials, and has published more than 20 papers in reputed journals.

Email: jiabaorui31032@126.com