Boosting lithium storage of manganese oxides by integrating improved kinetics porous carbon coating and one-dimensional porous nanostructure

Achievement of improvement in structural stability and electrochemical kinetics is crucial for developing advanced manganese oxide-based anodes for lithium-ion batteries. Herein, a MnxOy@PC composite composed of well-defined one-dimensional porous Mn3O4/MnO hybrid nanowires coated by a porous carbon layer is fabricated for the first time and hence this composite intelligently integrates the structural advantages of one dimension, porous structure and improved kinetics carbon coating. As expected, the results demonstrate that the structural stability and electrochemical kinetics of the MnxOy are improved significantly by the well-designed structure integration strategy. Namely, the combinatorial architecture of one-dimensional porous nanostructure and porous conductive carbon coating contributes to not only superior structure stability but also enhanced electrochemical kinetics of MnxOy@PC. Consequently, the MnxOy@PC reveals outstanding lithium storage performance with a high capacity of 798.4 mAh g(-1) after 200 cycles at 200 mA g(-1) as well as 518.3 mAh g(-1) after 500 cycles at 1000 mA g(-1). This work may open an efficient pathway to boost the performance of other promising nanostructured metal oxide anodes for lithium-ion batteries.