Co-precipitation synthesis and electrochemical properties of CrNbO4 anode materials for lithium-ion batteries

A facile co-precipitation method has been successfully developed to prepare Ternary transition metal CrNbO4 (CNO-CP) with high crystallinity. FESEM images show the particles of CNO-CP distribute homogeneously without agglomeration. The electrochemical test results show that the CNO-CP electrode maintains a capacity of 210 mA h g−1 after 50 cycles at 16 mA g−1 higher than 89 mA h g−1 of CrNbO4 (CNO-SS) prepared by solid state method. The rate capabilities of the CNO-CP at 32, 80 and 160 mA g−1 are 232.4, 176.8 and 137.1 mA h g−1, respectively, which are also superior to CNO-SS.