Tellurium Enriched Over‐Oxidized MoTe₂ Anchored MXene Sheets: A Promising Li‐ion Battery Anode Material

Abstract

To address the challenge of low electronic and ion conductivities in lithium‐ion batteries (LIBs), we synthesized MoTe2@Ti3C2Tx via a modified hydrothermal route. This 2D van der Waals composite exhibited a stable reversible specific discharge capacity of 566 mAh/g at 0.1C (67 mA/g) and retained 71% of its initial capacity during rate performance tests. Notably, cycling stability tests revealed an increased discharge capacity of 316.4 mAh/g after 564 cycles at 0.4C (268 mA/g), which improved further to 378.2 mAh/g after 922 cycles at 1C (670 mA/g). The exceptional electrochemical performance stems from the unique MoTe2@Ti3C2Tx architecture, enhancing Li+ site exposure and ensuring structural stability. This composite emerges as a promising and easily synthesizable advanced anode material for LIBs, offering enhanced conductivity and stability.