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

作　　者：韦正楠 王丽娜 陈沛龙 韩霞[3] 许婧 WEI Zhengnan;WANG Lina;CHEN Peilong;HAN Xia;XU Jing(Postdoctoral Scientific Research of Shengli Petroleum Administration,Dongying 257000,China;College of Chemistry and Chemical Engineering,Xinyang Normal University,Xinyang 464000,China;Petroleum Engineering Design Co.,Ltd.,Sinopec,Dongying 257000,China)

机构地区：[1]胜利油田博士后科研工作站,山东东营257000 [2]信阳师范学院化学化工学院,河南信阳464000 [3]中石化石油工程设计有限公司,山东东营257000

出　　处：《信阳师范学院学报（自然科学版）》2020年第4期612-616,共5页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(21805024)。

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.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%.

关 键 词：钠离子电池 负极材料 二硫化钒 层状纳米片 

分 类 号：TM912[电气工程—电力电子与电力传动]