Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries

doi:10.1016/j.carbon.2018.05.077

IMR OpenIR

	Easy fabrication of flexible and multilayer nanocarbon-based cathodes with a high unreal sulfur loading by electrostatic spraying for lithium-sulfur batteries
	Shi, Huifa 1,2; Niu, Shuzhang 3; Lv, Wei 1; Zhou, Guangmin 5; Zhang, Chen 6; Sun, Zhenhua 7; Li, Feng 7; Kang, Feiyu 1,2,3; Yang, Quan-Hong 4
通讯作者	Lv, Wei(lv.wei@sz.tsinghua.edu.cn)
	2018-11-01
发表期刊	CARBON
ISSN	0008-6223
卷号	138 页码:18-25
摘要	A 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.
关键词	Lithium-sulfur batteries Electrostatic spray deposition Flexible electrode Layer-by-layer structure High loading
资助者	National 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
DOI	10.1016/j.carbon.2018.05.077
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:000442635300003
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：25[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/321006/129296
专题	中国科学院金属研究所
通讯作者	Lv, Wei
作者单位	1.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
推荐引用方式 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.