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Efficient polysulfide blocker from conductive niobium nitride@graphene for Li-S batteries
Shi, Huifa1,3; Sun, Zhenhua2; Lv, Wei1; Xiao, Shujie1,3; Yang, Huicong2; Shi, Ying2; Chen, Ke2; Wang, Shaogang2; Zhang, Bingsen2; Yang, Quan-Hong4; Li, Feng2
Corresponding AuthorLv, Wei(lv.wei@sz.tsinghua.edu.cn) ; Yang, Quan-Hong(qhyangcn@tju.edu.cn) ; Li, Feng(fli@imr.ac.cn)
2020-06-01
Source PublicationJOURNAL OF ENERGY CHEMISTRY
ISSN2095-4956
Volume45Pages:135-141
AbstractLithium 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.
KeywordLithium-sulfur batteries Niobium nitride Chemical adsorption Catalytic effect High loading
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of Chinese Academy of Science ; China Petrochemical Cooperation
DOI10.1016/j.jechem.2019.10.018
Indexed BySCI
Language英语
Funding ProjectNational 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 Research AreaChemistry ; Energy & Fuels ; Engineering
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS IDWOS:000520405600020
PublisherELSEVIER
Citation statistics
Cited Times:34[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/138075
Collection中国科学院金属研究所
Corresponding AuthorLv, Wei; Yang, Quan-Hong; Li, Feng
Affiliation1.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
Recommended Citation
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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