Long life anode material sodium titanate synthesized by a moderate method

A sodium titanate-carbon (Na2Ti3O7/C) composite as an anode material for sodium-ion batteries (SIBs) is successfully synthesized via a moderate method (500 °C). It can deliver charge capacities of 161 mA h g−1 and 91 mA h g−1 at current densities of 0.05 C and 10 C, respectively. The material can be cycled at 0.2 C for 400 cycles without capacity or voltage decay. This low cost and environmentally friendly Na2Ti3O7/C exhibits excellent electrochemical performance.