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Efficient polysulfide blocker from conductive niobium nitride@graphene for Li-S batteries

文献类型：期刊论文

作者Shi, Huifa1,3; Sun, Zhenhua2; Lv, Wei1; Xiao, Shujie1,3; Yang, Huicong2; Shi, Ying2; Chen, Ke2; Wang, Shaogang2; Zhang, Bingsen2; Yang, Quan-Hong4
刊名JOURNAL OF ENERGY CHEMISTRY
出版日期2020-06-01
卷号45页码:135-141
关键词Lithium-sulfur batteries Niobium nitride Chemical adsorption Catalytic effect High loading
ISSN号2095-4956
DOI10.1016/j.jechem.2019.10.018
通讯作者Lv, Wei(lv.wei@sz.tsinghua.edu.cn) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要Lithium sulfur batteries are one of the most promising alternative electrochemical systems, but their practical applications are largely hindered by the serious shuttling problems and sluggish redox kinetics. Here, the conductive and polar niobium nitride (NbN) is in-situ introduced onto graphene with ultrasmall size and high dispersion, and their composite is used to construct an efficient lithium polysulfide blocking layer. The graphene helps to construct highly conductive pathways, and niobium nitride serves as the sulfiphilic sites to chemically adsorb the migrating lithium polysulfides and catalyze their redox conversion. Hence, the cells with the NbN/G interlayers exhibit a long cycle life with a lower capacity decay of 0.096%/cycle at 1 C for 300 cycles and high rate capability of 937 mAh g(-1) at 2 C. Further coupling with a sulfur/carbon nanofiber electrode, the cell with an ultra-high sulfur loading of 10.8 mg cm(-2) delivers an areal capacity of 12.5 mAh cm(-2) at 0.1 C. (C) 2019 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. and Science Press. All rights reserved.
资助项目National Key R&D Program of China[2016YFB0100100] ; National Key R&D Program of China[2016YFA0200100] ; National Natural Science Foundation of China[51972313] ; National Natural Science Foundation of China[51525206 and51521091] ; Strategic Priority Research Program of Chinese Academy of Science[XDA22010602] ; China Petrochemical Cooperation[218025]
WOS研究方向Chemistry ; Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000520405600020
出版者ELSEVIER
资助机构National Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Science ; China Petrochemical Cooperation
源URL[http://ir.imr.ac.cn/handle/321006/138074]  
专题金属研究所_中国科学院金属研究所
通讯作者Lv, Wei; Yang, Quan-Hong; Li, Feng
作者单位1.Tsinghua Univ, Shenzhen Geim Graphene Ctr, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
3.Tsinghua Univ, Sch Mat Sci & Engn, Lab Adv Mat, Beijing 100084, Peoples R China
4.Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Nanoyang Grp, Tianjin 300072, Peoples R China
推荐引用方式
GB/T 7714		 Shi, Huifa,Sun, Zhenhua,Lv, Wei,et al. Efficient polysulfide blocker from conductive niobium nitride@graphene for Li-S batteries[J]. JOURNAL OF ENERGY CHEMISTRY,2020,45:135-141.
APA Shi, Huifa.,Sun, Zhenhua.,Lv, Wei.,Xiao, Shujie.,Yang, Huicong.,...&Li, Feng.(2020).Efficient polysulfide blocker from conductive niobium nitride@graphene for Li-S batteries.JOURNAL OF ENERGY CHEMISTRY,45,135-141.
MLA Shi, Huifa,et al."Efficient polysulfide blocker from conductive niobium nitride@graphene for Li-S batteries".JOURNAL OF ENERGY CHEMISTRY 45(2020):135-141.

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来源：金属研究所

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