溶剂热法构建层状二硫化钒纳米片——一种高效稳定的钠离子电池负极材料

Constructing Layered Vanadium Disulfide Nanosheets via Wet-chemistry: A Superior Anode Material for Sodium Ion Batteries

摘要: 利用简单的溶剂热合成法制备层状二硫化钒纳米片，并对其作为钠离子电池负极材料进行了性能研究.结果表明：层状二硫化钒纳米片用于钠离子电池负极时，在电流密度为200 mA/g的50次循环后，比容量最高可达238.4 mAh/g.首圈库伦效率为78.0%，随后第二圈的库伦效率又增长为97.3%，整体稳定性好.

Abstract: Layered vanadium disulfide nanocrystal as anode materials were prepared via a simple solvo-thermal synthesis method, and the performance of sodium ion batteries was studied. The results showed that a high specific capacity of 238.4 mAh/g was obtained after 50 cycles with a current density of 200 mAh/g. The coulomb efficiency of the first circle was 78.0% and that of the second was 97.3%.