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

NiSb 2 O 6 and reduced graphene oxide (NiSb 2 O 6 /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 NiSb 2 O 6 /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 NiSb 2 O 6 .