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Dual functional MoS2/graphene interlayer as an efficient polysulfide barrier for advanced lithium-sulfur batteries
Guo, Pengqian; Liu, Dequan; Liu, Zhengjiao; Shang, Xiaonan; Liu, Qiming; He, DY(贺德衍)
2017-12-01
Source PublicationELECTROCHIMICA ACTA   Impact Factor & Quartile
ISSN0013-4686
Volume256Issue:12Pages:28-36
AbstractA dual functional interlayer consisted of composited two-dimensional MoS2 and graphene has been developed as an efficient polysulfide barrier for lithium-sulfur batteries (LSBs). With such a configuration, LSBs show a superior rate capacity and improved cycling capacity. The excellent electrochemical performance can be attributed to the strong bonding interactions between the MoS2/graphene interlayer and the formed lithium polysulfides (LiPSs) as well as the good electrical conductivity of the MoS2/graphene composite. The MoS2/graphene interlayer can physically block LiPSs by the graphene nanosheets and chemically suppress the dissolution of LiPSs by the polar MoS2 nanoflowers. Such a dual functional interlayer further provides a good contact with the surface of the sulfur cathode, acts as an upper current collector and greatly improves the sulfur utilization and the rate capability of LSBs. (C) 2017 Elsevier Ltd. All rights reserved.
KeywordLithium-sulfur batteries Shuttle effect MoS2 Graphene Interlayer
Subject AreaElectrochemistry
PublisherELSEVIER
DOI10.1016/j.electacta.2017.10.003
Publication PlaceOXFORD
Indexed ByEI ; SCIE
Language英语
First Inst
Funding Project国家自然科学基金项目 ; 中央高校基本科研业务费专项资金
Project NumberNational Natural Science Foundation of China [11674138, 11504147] ; Fundamental Research Funds for the Central Universities [lzujbky-2017-184]
WOS IDWOS:000414042900004
Funding OrganizationNSFC ; LZU
EI Accession Number20174104269638
SubtypeArticle
EI KeywordsGraphene ; Layered semiconductors ; Lithium batteries ; Lithium compounds ; Molybdenum compounds ; Phosphorus compounds ; Polysulfides
EI Classification NumberPrimary Batteries:702.1.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Organic Polymers:815.1.1
Citation statistics
Cited Times:100[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/197023
Collection物理科学与技术学院
材料与能源学院
Corresponding AuthorHe, Deyan
Affiliation
School of Physical Science and Technology, Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou; 730000, China
First Author AffilicationSchool of Physical Science and Technology
Corresponding Author AffilicationSchool of Physical Science and Technology
Recommended Citation
GB/T 7714
Guo, Pengqian,Liu, Dequan,Liu, Zhengjiao,et al. Dual functional MoS2/graphene interlayer as an efficient polysulfide barrier for advanced lithium-sulfur batteries[J]. ELECTROCHIMICA ACTA,2017,256(12):28-36.
APA Guo, Pengqian,Liu, Dequan,Liu, Zhengjiao,Shang, Xiaonan,Liu, Qiming,&He, Deyan.(2017).Dual functional MoS2/graphene interlayer as an efficient polysulfide barrier for advanced lithium-sulfur batteries.ELECTROCHIMICA ACTA,256(12),28-36.
MLA Guo, Pengqian,et al."Dual functional MoS2/graphene interlayer as an efficient polysulfide barrier for advanced lithium-sulfur batteries".ELECTROCHIMICA ACTA 256.12(2017):28-36.
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