广州化学2025，Vol.50Issue(3)：15-19,5.DOI:10.16560/j.cnki.gzhx.20250301
MXene包覆Sb4O5Cl2复合材料的制备及负极储钾性能
Preparation and Anodic Potassium-ion Storage Performance of MXene-wrapped Sb4O5Cl2 Composites
摘要
Abstract
Potassium-ion batteries are considered one of the most promising future inexpensive energy storage systems.Due to its high specific capacity and mass density,Sb4O5Cl2 is considered as one of the typical high-energy density anode materials for potassium-ion storage.However,it also suffers from rapid capacity decay and poor rate performance caused by poor conductivity and large volume changes during potassium ions'insertion and extraction processes.Herein,self-made ultra-thin and large-size MXene was used as a conductive additive to solve this problem.The MXene-coated Sb4O5Cl2(MXene@Sb4O5Cl2)composite was prepared as anodic potassium-ion storage material using the ball-milling-assisted ultrasonic shaking method.The physical and chemical properties of the as-prepared MXene@Sb4O5Cl2 materials were characterized by using X-ray diffraction,scanning,and transmission electron microscopy.The electrochemical potassium-ion storage performance and behavior of the MXene@Sb4O5Cl2 materials were tested using electrochemical workstations and constant current charging and discharging equipment.Compared with pure Sb4O5Cl2,the coating of MXene greatly alleviates the rapid capacity decay.The MXene@Sb4O5Cl2 materials show a high rate cycling stability.关键词
钾离子电池/锑/氯氧化物/负极材料/MXeneKey words
potassium ion battery/antimony/chlorine oxide/negative electrode material/MXene分类
化学化工引用本文复制引用
张一帆,柏玲,黄镇东..MXene包覆Sb4O5Cl2复合材料的制备及负极储钾性能[J].广州化学,2025,50(3):15-19,5.基金项目
国家自然科学基金面上项目(52277219) （52277219）
