Preparation of a fusiform shape MnO/C composite as anode materials for lithium-ion batteries

Fusiform shape MnO/C composite was fabricated for the first time by heat calcining of MnCO3/C precursor, which was produced via a two-step hydrothermal method using glycine, KMnO4 and glucose as reagents. When the composite applied in LIBs as anode materials, the electrodes deliver a reversible capacity as high as 691 mA h g(-1) after 120 cycles at a current density of 100 mA g(-1) and can retain a stable capacity of 187 mA h g(-1) at 1000 mA g(-1). Compared with pure MnO particles sample, the enhanced electrochemical performances of MnO/C electrodes were attributed to the carbon layers can effectively improve the transfer rate of electrons and buffer the volume expansion of MnO particles during the charge/discharge process.