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
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.
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.
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