A Lamellar MoNb12O33 as the High-Rate Anode Material for Lithium-Ion Batteries.

Tuning the nanostructure of anode material is one of the most effective ways to promote energy storage performance in the field of lithium-ion batteries. Herein, two-dimensional (2D) MoNb₁₂O₃₃ (MNO) material synthesized by combining a hydrothermal method and high-temperature calcination treatment is reported as a potential candidate anode material for lithium-ion batteries. Compared with other niobium-based oxide, Mo has higher valence and higher conductivity, which is very beneficial for maintaining its own good electrochemical performance. The sheet-like structure with abundant holes is favorable for the sufficient connection between MNO nanoparticles and electrolyte, further enhancing the kinetics of the lithium-ion diffusion process, thus giving rise to even better electrochemical performance. Benefitting the elegant structure, the charge–discharge capacity of MNO is maintained separately at 60.74 mA h g⁻¹ and 61.26 mA h g⁻¹ after 1000 cycles at 10 C, and the coulomb efficiency is close to 100%. The lamellar MNO fabricated by the facile method in this work displays great promise for application in lithium-ion batteries. [ABSTRACT FROM AUTHOR]