Na2Ti3O7 and α-Fe2O3-based hybrid nanomaterial for the negative electrode of sodium-ion batteries

Sodium trititanate, Na2Ti3O7, is considered to be a promising material for the negative electrode of reliable sodium-ion batteries. The advantages of Na2Ti3O7 include suitable electrode potential and cycling stability. However, this material is characterized by the limited specific capacity and low electronic conductivity. The current work is devoted to modification of Na2Ti3O7 by combining it with the high-capacity α-Fe2O3 phase. The structure, the composition, the morphological features, the electronic and the electrochemical properties of the obtained Na2Ti3O7–α-Fe2O3-based hybrid nanomaterial were studied in the work.