Ti₃C₂ MXene Nanosheets/Vanadium Nitride@Carbon Composite Electrodes for High-Performance Lithium-Ion Batteries

Lithium-ion batteries have delivered outstanding charge storage performance due to their high energy density and low cost and also more specialized energy conversion device for next-generation electrical appliances. Herein, we offered the ultrathin Ti₃C₂ MXene (titanium carbide) nanosheets/vanadium nitride (VN)@carbon (C) nanocomposites for lithium-ion storage application as a high-capacity anode material. The proposed anode material is Ti₃C₂ MXene nanosheets/VN@C composite as synthesized via chemical precipitation. The real-time half-cell of Ti₃C₂ MXene nanosheets/VN@C composite shows the excellent initial discharge specific capacity of 1237 mAh g^-1 at a current density of 0.1 A g^-1 with a reverse rate capacity of 685 mAh g^-1. The high specific capacity of 645 mAh g^-1 has been attained even after 500 cycles at a current density of 0.1 A g^-1. This type of rich reverse rate capacity and stability of the anode electrode is responsible due to the high conductivities and surface areas of Ti₃C₂ MXene nanosheets/VN@C composite, which is provided easy accessibility of Li⁺ ions.