MoO 2 /C hybrid synthesized by a facile molten‐salt‐assisted approach for high‐performance lithium‐ion batteries

Summary To combat the serious agglomeration and growth of the active materials, huge volume expansion and sluggish kinetics of metal oxides in the process of Li + insertion/extraction, constructing hybrid nanostructures aiming to anchor active materials has been pursued. However, it is still limited in terms of capacity decay and complex preparation process. Herein, the hybrid MoO 2 /C is synthesized through a novel molten‐salt‐assisted approach, in which isolated small MoO 2 nanoparticles were anchored on the well‐developed coal‐based porous carbon framework. The novel MoO 2 /C electrodes demonstrate enhanced electrochemical performance as Li + battery anodes with a higher capacity of 960 mAh g −1 at 200 mA g −1 , which is attributed to the synergistic effect for the uniform dispersion of MoO 2 nanoparticles and coal‐based porous carbon layer with abundant active contact sites, which is better by far than the currently reported MoO 2 ‐based electrode. Meanwhile, the hybrid MoO 2 /C exhibited improved extrinsic capacitive characteristics. Therefore, the hybrid MoO 2 /C constructed by the simple low cost strategy can be a prospective Li‐ion battery anode.