Fabrication of Nb2O5/C nanocomposites as a high performance anode for lithium ion battery |
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| Authors: | Gan-Ying Zeng Hao Wang Jing Guo Li-Mei Cha Yu-Hai Dou Jian-Min Ma |
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| Institution: | a Schcool of Physics and Electronics, Hunan University, Changsha 410082, China;
b College of Materials Science and Engineering, Hunan University, Changsha 410082, China;
c Institute for Superconducting and Electronic Materials, Australian Institute for Innovative Materials, University of Wollongong, Wollongong, New South Wales 2500, Australia;
d Science and Technology on Surface Physics and Chemistry Laboratory, China Academy of Engineering Physics, Mianyang 621908, China |
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| Abstract: | Nb2O5/C nanosheets are successfully prepared through a mixing process and followed by heating treatment.Such Nb2O5/C based electrode exhibits high rate performance and remarkable cycling ability, showing a high and stable specific capacity of ~380 mAh g-1 at the current density of 50 mA g-1(much higher than the theoretical capacity of Nb2O5).Further more,at a current density of 500 mA g-1,the nanocomposites electrode still exhibits a specific capacity of above 150 mAh g-1 after 100 cycles.These results suggest the Nb2O5/C nanocomposite is a high performance anode material for lithium-ion batteries. |
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| Keywords: | Nb2O5 Carbon Composite Anode Lithium-ion battery |
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