南京工业大学学报（自然科学版）2018，Vol.40Issue(2)：41-46,6.DOI:10.3969/j.issn.1671-7627.2018.02.007
锂硫电池正极复合材料多壁碳纳米管@介孔碳/硫的制备与性能
Synthesis and characterization of MWCNT@Meso-C/S composite as a cathode for Li/S batteries
摘要
Abstract
Multi-walled carbon nanotubes @ mesoporous carbon(MWCNT@ Meso-C)matrix was prepared via carbonizing MWCNT@zeoliticimidazolate framework(MWCNT@ZIF-8)from solothermal method.Active sulfur was encapsulated into this matrix and the resulting composite was tested.The analysis,characterization,and electrochemical properties of these composites were investigated by X-ray diffraction(XRD), Raman spectroscopic analysis, surface area and pore volume analysis, thermogravimetric analysis(TGA),field emission scanning electron microscope(FESEM),energy dispersive spectroscopy(EDS)and electrochemical test.The MWCNT@ Meso-C/S composite cathode displayed a high initial discharge capacity of 1 114 mA·h/g and a good cycling stability of 630 mA·h/g after 100 cycles 0.5C,and the coulombic efficiency reminded above 99%.The high utilization of active S and good cycling stability suggested that the obtained MWCNT@Meso-C/S composite might be a potential cathode for the high performance Li/S battery.关键词
锂硫电池/正极材料/ZIF-8/高温碳化/MWCNT@Meso-C/S复合材料Key words
lithium/sulfur battery/cathode/ZIF-8/high temperature carbonization/MWCNT@Meso-C/S composite分类
信息技术与安全科学引用本文复制引用
张小溪,马帅,梁凯,王国静,刘晓敏,杨晖..锂硫电池正极复合材料多壁碳纳米管@介孔碳/硫的制备与性能[J].南京工业大学学报（自然科学版）,2018,40(2):41-46,6.基金项目
国家自然科学基金(21573109) （21573109）
