Synthesis and electrochemical properties of ZnMn2O4 microspheres for lithium-ion battery application

223The ZnMn2O4 sample obtained by pyrolysis of the Zn0.33Mn0.67CO3 precursor using ammonium bicarbonate as precipitant exhibits a better electrochemical properties. It has a high initial discharge specific capacity of 1269 mAhg−1 and remains its capacity at 602 mAhg−1 after 100 cycles under a constant current of 100 mAg−1 in the voltage range of 0.01-3 V.