Synthesis and Electrochemical Properties of Manganese Oxides/Carbon-Nitrogen Three-Dimensional Networks Composite as an Anode Material for Lithium Ion Batteries

Sesquioxide coated on melamine foams (MF) were prepared by hydrothermal method using manganese nitrate and ethanol. After calcinating the resulting material at different temperatures in N-2 atmosphere, manganese oxides loaded on C-N three-dimensional networks were obtained. Due to the presence of C-N networks, the structure stability and conductivity of the materials have been increased. The pores and channels generated during the calcination processes facilitate the lithium ions transportation. The composites present excellent charge/discharge ability and cycling stability as anode materials for lithium ion batteries. Therefore, the specific capacity and cycling stability have been greatly enhanced. MnO/CNnws-500 can maintain a specific capacity of 590 mAh center dot g(-1) after 160 cycles which accounts for 78% of theoretical capacity (755 mAh center dot g(-1)) of manganese monoxide (MnO).