Fabrication of Nb2O5/C nanocomposites as a high performance anode for lithium ion battery

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 similar to 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. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.