Facile synthesis of dual-phase lithium titanate nanowires as anode materials for lithium-ion battery

•A facile wet corrosion and ion exchange process were investigated.•Li4Ti5O12-TiO2 dual phase nanowire was successfully prepared at low temperature.•The phase compositions significantly affect the electrochemical performance.•Li4Ti5O12-TiO2 nanowires with a phase ratio of 3:7 show superior performance.