碳包覆硫化锑纳米棒的制备及其储钠研究  

Preparation and sodium storage of carbon coated Sb_(2)S_(3) nanorods

作　　者：王国乾 许宁[1,2] 岳鹿 张文惠 WANG Guoqian;XU Ning;YUE Lu;ZHANG Wenhui(School of Mechanical Engineer,Yancheng Institute of Technology,Yancheng Jiangsu 224051,China;School of Mechanical Engineering,Jiangsu University,Zhenjiang Jiangsu 212013,China;Jiangsu Province Key Laboratory for Advanced Technology in Environmental Protection,Yancheng Jiangsu 224051,China)

机构地区：[1]盐城工学院机械工程学院,江苏盐城224051 [2]江苏大学机械工程学院,江苏镇江212013 [3]江苏省新型环保重点实验室,江苏盐城224051

出　　处：《电源技术》2021年第4期507-511,共5页Chinese Journal of Power Sources

基　　金：国家重点研发计划(2017YFC0703202)。

摘　　要：以三氯化锑(SbCl_(3))和九水硫化钠(Na_(2)S·9 H_(2)O)为原料,以聚乙烯吡咯烷酮为表面活性剂,以乙二醇为辅助溶剂,在200℃温度条件下,采用溶剂热法成功制备了一维直径为80~190 nm,长度约为40μm的Sb2S3纳米棒材料,并对该合成材料进行碳包覆。将该合成材料作为钠离子电池负极材料时,表现出优异的储钠性能。对于Sb2S3/C电极,在电流密度为200 mA/g时,首次放电比容量为1019.2 mAh/g,循环50次后,比容量保持在566.8 mAh/g,当电流密度提高为500 mA/g时,循环100次后,比容量保持在480.4 mAh/g。The one dimensional Sb_(2)S_(3) nanorods with diameter of 80-190 nm and length of about 40μm were successfully prepared by solvothermal method with antimony trichloride(SbCl_(3))and sodium sulfide(Na_(2)S·9 H_(2)O)as raw materials,polyvinylpyrrolidone(PVP)as surfactant and ethylene glycol as auxiliary solvent at 200℃,and the synthesized materials was coated by carbon.The synthesized materials displayed good sodium storage performance when it’sused for the anode of sodium ion battery.For Sb2S3/C anode,the initial discharge specific capacity is 1019.2 mAh/g at the current density of 200 mA/g,and the specific capacity maintains 566.8 mAh/g after 50 cycles;when the current density is 500 mA/g,the specific capacity is 480.4 mAh/g after 100 cycles.

关 键 词：Sb_(2)S_(3)/C纳米棒 表面活性剂 钠离子电池 负极 电化学性能 

分 类 号：TM912.9[电气工程—电力电子与电力传动]