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现代化工  2021, Vol. 41 Issue (6): 167-171    DOI: 10.16606/j.cnki.issn0253-4320.2021.06.034
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
锂硫电池正极用氮掺杂的多孔碳纤维载体材料的研究
杨玉艳1, 周丽丽1, 陈兴华1, 苏芸2, 王亚清2, 王斌2
1. 新乡职业技术学院汽车技术系, 河南 新乡 453000;
2. 新乡学院物理与电子工程学院, 河南 新乡 453000
Nitrogen-doped porous carbon fiber support materials for cathode of lithium sulfur battery
YANG Yu-yan1, ZHOU Li-li1, CHEN Xing-hua1, SU Yun2, WANG Ya-qing2, WANG Bin2
1. Department of Automotive Technology, Xinxiang Vocational and Technical College, Xinxiang 453000, China;
2. School of Physics and Electronic Engineering, Xinxiang University, Xinxiang 453000, China
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摘要 通过静电纺丝制备出碳纤维,然后高温退火处理获得氮掺杂多孔碳纤维,并将其作为硫的宿主材料,最终得到N-CNFs/S正极材料。利用XRD、TG、TEM等对N-CNFs/S复合电极材料的结构和形貌进行表征。N-CNFs/S作为正极材料组装的锂硫电池的电化学性能测试结果表明,在167 mA/g和836 mA/g的电流密度下,N-CNFs/S复合电极材料循环250圈和500圈后容量分别高达836 mA·h/g和631 mA·h/g;同时,N-CNFs/S复合电极材料还表现出良好的倍率性能。
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杨玉艳
周丽丽
陈兴华
苏芸
王亚清
王斌
关键词:  静电纺丝  多孔碳纤维  氮掺杂  正极  锂硫电池    
Abstract: Carbon fibers are prepared through electrospinning,and then treated by high-temperature annealing to obtain nitrogen-doped porous carbon fibers,which are used as sulfur host materials,and finally N-CNFs/S cathode materials are obtained.The target product is characterized,and the structure and morphology of N-CNFs/S composite electrode material are studied.Lithium sulfur battery assembled with N-CNFs/S as cathode material exhibits good electrochemical performance.At current densities of 167 mA·g-1 and 836 mA·g-1,the capacity of N-CNFs/S composite electrode material can be as high as 836 mAh·g-1 and 631 mAh·g-1 after 250 cycles and 500 cycles,respectively.Meanwhile,N-CNFs/S composite electrode material also shows good rate performance.
Key words:  electrospinning    porous carbon fiber    nitrogen doping    cathode    lithium-sulfur battery
收稿日期:  2020-07-21      修回日期:  2021-04-10          
ZTFLH:  TQ15  
基金资助: 河南省教育厅科学基金(15A140032,19A610007);河南省科技攻关计划(192102310467);国家自然科学基金-河南联合基金(U1904198)
通讯作者:  苏芸(1985-),女,博士,讲师,主要从事储能材料及应用研究,通讯联系人,369283379@qq.com。    E-mail:  369283379@qq.com
作者简介:  杨玉艳(1983-),女,工程硕士,讲师,主要从事新能源及应用研究,thry2020@163.com
引用本文:    
杨玉艳, 周丽丽, 陈兴华, 苏芸, 王亚清, 王斌. 锂硫电池正极用氮掺杂的多孔碳纤维载体材料的研究[J]. 现代化工, 2021, 41(6): 167-171.
YANG Yu-yan, ZHOU Li-li, CHEN Xing-hua, SU Yun, WANG Ya-qing, WANG Bin. Nitrogen-doped porous carbon fiber support materials for cathode of lithium sulfur battery. Modern Chemical Industry, 2021, 41(6): 167-171.
链接本文:  
https://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2021.06.034  或          https://www.xdhg.com.cn/CN/Y2021/V41/I6/167
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