可充镁电池正极材料研究进展

摘要

由于金属镁具有能量密度高、价格低廉、对环境友好且操作安全等优点,使得可充镁电池在大负荷储能方面具有良好的应用前景.本文对现有可充镁电池正极材料的研究成果予以系统评述,重点介绍了具有良好循环性能、高比容量或高放电电压平台等优点的材料,如Mg<,x>Mo<,3>S<,4>、V<,2>O<,5>气凝胶、V<,2>O<,5>凝胶/C复合物、类石墨烯结构的MoS<,2>、聚阴离子型材料等,探讨了可充镁电池正极材料当前存在的问题并对其研究发展方向做了展望.%Rechargeable magnesium batteries may be a potential candidate for heavy load application due to high energy density, low cost, safety of handling and environmentally friendly nature of metallic magnesium. In this paper, the recent research progress of cathode materials is reviewed, especially MgxMo3S4, V2O5 aerogels, V2O5 gel/carbon composites, graphene-like MoS2, polyanion-type materials with good cyclability, high specific capacity or high discharge plateau. Furthermore, the current problems and the corresponding research directions are proposed.