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Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries
Shi, Huifa1,2; Niu, Shuzhang3; Lv, Wei1; Zhou, Guangmin5; Zhang, Chen6; Sun, Zhenhua7; Li, Feng7; Kang, Feiyu1,2,3; Yang, Quan-Hong4
Corresponding AuthorLv, Wei(lv.wei@sz.tsinghua.edu.cn)
2018-11-01
Source PublicationCARBON
ISSN0008-6223
Volume138Pages:18-25
AbstractA high areal sulfur loading in a carbon-based cathode together with a high cell capacity is key to the design of lithium-sulfur batteries guaranteeing a superior energy density for use. However, a high sulfur loading produced using traditional blade coating techniques results in many technical issues such as sluggish electron/ion transport kinetics and cracking of the electrodes. Here a well designed two-step electrostatic spray deposition (ESD) technique is proposed to prepare a flexible, multilayer carbon electrode with a high sulfur areal loading, in which different carbon components by a careful selection are used for different functions in each layer. The unique "aerosol deposition" in the ESD creates buffer voids in the electrode, ensuring fast infiltration of the electrolyte and releasing the internal stress of the electrode thus avoiding the cracking of thick electrodes. With such an integrated design, the as-prepared cathode exhibits excellent flexibility, a long cyclic stability with a low capacity decay of 0.064% per cycle at 1 C for 500 cycles and a high rate capability of 736 mAh g(-1) at 2 C. Moreover, a high areal sulfur loading of 9.4 mg cm(-2) with an areal capacity of 6.2 mAh cm(-2) at 0.1 C has been achieved. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordLithium-sulfur batteries Electrostatic spray deposition Flexible electrode Layer-by-layer structure High loading
Funding OrganizationNational Natural Science Foundation of China ; National Basic Research Program of China ; China Postdoctoral Science Foundation ; Shenzhen Basic Research Project ; International Collaboration Project of Tsinghua University Initiative Scientific Research Program ; National Science Fund for Distinguished Young Scholars, China ; Youth Research Funds of the Graduate School at Shenzhen, Tsinghua University
DOI10.1016/j.carbon.2018.05.077
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51772164] ; National Natural Science Foundation of China[51702182] ; National Basic Research Program of China[2014CB932400] ; China Postdoctoral Science Foundation[2017M610887] ; Shenzhen Basic Research Project[JCYJ20150529164918734] ; Shenzhen Basic Research Project[JCYJ20170412171359175] ; International Collaboration Project of Tsinghua University Initiative Scientific Research Program[20173080001] ; National Science Fund for Distinguished Young Scholars, China[51525204] ; Youth Research Funds of the Graduate School at Shenzhen, Tsinghua University[QN20160001]
WOS Research AreaChemistry ; Materials Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary
WOS IDWOS:000442635300003
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/129296
Collection中国科学院金属研究所
Corresponding AuthorLv, Wei
Affiliation1.Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Shenzhen Key Lab Graphene Based Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China
2.Tsinghua Univ, Sch Mat Sci & Engn, Lab Adv Mat, Beijing 100084, Peoples R China
3.Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China
4.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
5.Stanford Univ, Dept Mat Sci & Engn, Stanford, CA 94305 USA
6.Tianjin Univ, Sch Marine Sci & Technol, Tianjin 300072, Peoples R China
7.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China
Recommended Citation
GB/T 7714
Shi, Huifa,Niu, Shuzhang,Lv, Wei,et al. Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries[J]. CARBON,2018,138:18-25.
APA Shi, Huifa.,Niu, Shuzhang.,Lv, Wei.,Zhou, Guangmin.,Zhang, Chen.,...&Yang, Quan-Hong.(2018).Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries.CARBON,138,18-25.
MLA Shi, Huifa,et al."Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries".CARBON 138(2018):18-25.
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