Two-Step Rapid Synthesis of MnO@C Nanoparticle as a High-Performance Anode for Lithium-Ion Batteries

To improve transition metal oxide electrochemical performances, combining the construction of reasonable microstructure with surface engineering is an important method. Herein, solution combustion and carbon coating are used to improve the specific capacity of MnO. Solution combustion is used to produce the nanoparticles, and carbon coating is used for surface modification. The specific capacity of pristine MnO is only 420 mAh g −1 at 200 mA g −1 , and capacity retention rate is 57.7% after 200 cycles. For comparison, the MnO@C anode electrode with different carbon coatings has excellent specific capacity, rate performance and cycle stability. In particular, MnO@C(1:1) delivers a reversible specific capacity of 520 mAh g −1 at 200 mA g −1 and a capacity retention of 86.7% after 200 cycles.