【摘要】 聚焦于MXene的表面终端调控及其与V₂O₃的复合结构设计，旨在获得改善性能的锂离子电池负极材料。通过表面工程策略对MXene进行预处理，有效降低了不利离子传输的-F终端，进而以其作为导电基底，与V₂O₃纳米颗粒构建复合负极材料。在该复合体系中，改性MXene（MXene-F_L）提供了快速电子传导路径、抑制了V₂O₃体积膨胀；而V₂O₃缓解了MXene片层堆叠问题，且作为主要容量贡献相，有效提升了整体储锂能力。V₂O₃/MXene-F_L复合材料在0.5 A·g^-1(2 A·g^-1)电流密度下循环300（1 000）次后仍保持547.5 mA·h·g^-1(259.8 mA·h·g^-1)的可逆比容量，展现了良好的电化学性能，这为开发高性能MXene基复合负极材料提供了新思路。更多还原

【Abstract】 Focusing on the surface-termination regulation of MXene and the design of its structural hybridization with V₂O₃,this study aims to develop high-performance anode materials for lithium-ion batteries.MXene was pretreated via surface engineering strategies to minimize F-terminations that impede ion transport.The modified MXene is subsequently employed as a conductive substrate to fabricate a composite anode material with V₂O₃ nanoparticles.In this composite system, the modified MXene（MXene-F_L） provides rapid electron transport pathways and accommodates the volume expansion of V₂O₃.Simultaneously, as the primary capacity-contributing phase, V₂O₃ mitigates the stacking of MXene nanosheets and effectively boosts the overall lithium storage capacity.The V₂O₃/MXene-F_L composite retains a reversible specific capacity of 547.5 mA·h·g^-1(259.8 mA·h·g^-1) after 300（1 000） cycles at 0.5 A·g^-1(2 A·g^-1),demonstrating robust electrochemical performance.These results provide novel insights into the development of high-performance MXene-based composite anode materials.更多还原