MoO₂/Mo₂C Heteronanotubes Function as High‐Performance Li‐Ion Battery Electrode

Abstract

Instead of carbon, Mo 2 C is used to modify the MoO 2 material for the first time. The presence of highly conductive and electrochemical inactive Mo 2 C decreases the resistance of the charge transport and enhances the structural stability of MoO 2 nanoparticles upon lithiation and delithiation, ensuring the superior cycling stability and high rate capability of the heteronanotubes. Cycled at 200 and 1000 mA g −1 for 140 cycles, the discharge capacities of the MoO 2 /Mo 2 C heteronanotubes remain to be 790 and 510 mAh g −1 , respectively. This work demonstrates the potential of the novel heteronanotubes for application as an electrode material for high‐performance Li‐ion batteries.