Preparation of Porous MnO@C Core-Shell Nanowires as Anodes for Lithium-Ion Batteries

Abstract

Porous MnO@C core-shell nanowires were prepared via a simple and facile method. The morphologies, the phase purity, the mass contents, and the BET surface area of the composite were characterized by SEM, XRD, TGA, and N 2 adsorption test, respectively. When the composite served as an anode for lithium-ion batteries, it showed superior electrochemical performances. The MnO@C composite presented a reversible capacity of 448.1 mAh g −1 after 100 cycles at the current rate of 200 mA g −1 .