Exploration of Na2.65Ti3.35Fe0.65O9 as anode materials for Na-ion batteries

Abstract

Na_2.65Ti_3.35Fe_0.65O₉ rods were prepared by a simple solid-state route and coated with carbon to enhance their electronic conductivity. For the first time, Na_2.65Ti_3.35Fe_0.65O₉ was explored as an anode material for Na-ion batteries to deliver a discharge capacity of 137.5 mA h g⁻¹ at a current rate of 40 mA g⁻¹. The charge/discharge capacity of a carbon-coated sample increased by 46.3% to achieve 201.1 mA h g⁻¹.