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

doi:10.1016/j.jechem.2019.10.018

IMR OpenIR

	Efficient polysulfide blocker from conductive niobium nitride@graphene for Li-S batteries
	Shi, Huifa 1,3; Sun, Zhenhua 2; Lv, Wei 1; Xiao, Shujie 1,3; Yang, Huicong 2; Shi, Ying 2; Chen, Ke 2; Wang, Shaogang 2; Zhang, Bingsen 2; Yang, Quan-Hong 4; Li, Feng 2
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)
	2020-06-01
发表期刊	JOURNAL OF ENERGY CHEMISTRY
ISSN	2095-4956
卷号	45 页码:135-141
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.
关键词	Lithium-sulfur batteries Niobium nitride Chemical adsorption Catalytic effect High loading
资助者	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
DOI	10.1016/j.jechem.2019.10.018
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000520405600020
出版者	ELSEVIER
引用统计	被引频次：74[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/138075
专题	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.