Synthesis and Electrochemical Properties of CoMn2O4 as Novel Material for Lithium Ion Battery Application

The pure phase CoMn2O4 samples are successfully prepared by solvothermal method combined with calcination at different temperatures (600, 700 and 800 degrees C). The structure and morphology for CoMn2O4 samples are characterized by X-ray diffraction (XRD) and Scanning electron microscopy (SEM) techniques. The electrochemical properties for different samples were tested by battery testing system and electrochemical workstation. The results showed that the calcination temperatures have important effects on their electrochemical properties. The sample synthesized at 600 degrees C (CMO-600) exhibits uniform microspheres composed of some nano-particles. As a novel anode material for lithium-ion batteries (LIBs). The CMO-600 has a reversible specific capacity of 1270 mA g(-1) retained after 100 circles at current density of 100 mA g(-1) under a potential window from 3.0 to 0.01 V (vs. Li+/Li). It exhibits both high reversible capacity and good rate performance. So CMO-600 is a promising anode material for lithium ion battery application.