Evaluation of reduced graphene oxide-supported NiSb2O6 nanocomposites for reversible lithium storage

NiSb2O6 and reduced graphene oxide (NiSb2O6/rGO) nanocomposites are successfully fabricated by a solid-state method combined with a subsequent solvothermal treatment and further used as anode material of lithium-ion battery. The NiSb2O6/rGO nanocomposites exhibit a higher reversible capacity (of ca. 1240.5 mA h g(-1) at a current density of 50 mA g(-1)), along with a good rate capability (395.2 mA h g(-1) at a current density of 1200 mA g(-1)) and excellent capacity retention (684.5 mA h g(-1) after 150 cycles). These good performances could be attributed to the incorporated reduced grapheme oxide, which significantly improves the electronic conductivity of the NiSb2O6. (C) 2016 Elsevier Ltd and Techna Group S.r.l. All rights reserved.