Electrostatic-spraying an ultrathin, multifunctional and compact coating onto a cathode for a long-life and high-rate lithium-sulfur battery

doi:10.1016/j.nanoen.2016.09.044

IMR OpenIR

	Electrostatic-spraying an ultrathin, multifunctional and compact coating onto a cathode for a long-life and high-rate lithium-sulfur battery
	Niu, Shuzhang 1,2,3; Lv, Wei 2,3; Zhou, Guangmin 5; Shi, Huifa 2,3,4; Qin, Xianying 2,3; Zheng, Cheng 2,3; Zhou, Tianhong 2,3,4; Luo, Chong 2,3,4; Deng, Yaqian 2,3,4; Li, Baohua 2,3; Kang, Feiyu 1,2,3,4; Yang, Quan-Hong 1,2,3,6
通讯作者	Lv, Wei(lv.wei@sz.tsinghua.edu.cn) ; Kang, Feiyu(fykang@sz.tsinghua.edu.cn) ; Yang, Quan-Hong(yang.quanhong@sz.tsinghua.edu.cn)
	2016-12-01
发表期刊	NANO ENERGY
ISSN	2211-2855
卷号	30 页码:138-145
摘要	Serious shuttle effect of polysulfides is the main obstacle preventing the practical application of lithium sulfur batteries. Herein, we report an ultrathin yet multifunctional polysulfide blocking layer (MPBL) coated on the cathode to effectively restrain the polysulfides shuttling. This MPBL, which was prepared by a simple, one-step electrostatic spray deposition (ESD) technique, was fully and compactly coated on the electrode with controllable thickness, realizing the full protection of the whole cathode. It is noted that the MPBL can be very thin that guarantees the fast ion diffusion but still keeps a high efficiency of blocking polysulfides due to a combination of physical (from carbon) and chemical confinement (from conductive polymer). In addition, the MPBL with good conductivity can act as the upper current collector to reuse the captured polysulfides, and thus improve the sulfur utilization during cycling. With such multifunctional design, the MPBL-coated carbon-sulfur cathode exhibits long cyclic stability and high rate capability, which has only 0.042% capacity decay per cycle at 1C for 1000 cycles and a capacity of 615 mA h g(-1) even at a high rate of 3C.
关键词	Multifunctional polysulfide blocking layer Electrostatic-spraying deposition Lithium sulfur batteries High-rate performance Long cycle life
资助者	National Basic Research Program of China ; National Natural Science Foundation of China ; Shenzhen Basic Research Project
DOI	10.1016/j.nanoen.2016.09.044
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2014CB932400] ; National Natural Science Foundation of China[51525204] ; National Natural Science Foundation of China[51372167] ; National Natural Science Foundation of China[51302146] ; National Natural Science Foundation of China[U1401243] ; Shenzhen Basic Research Project[ZDSYS20140509172959981] ; Shenzhen Basic Research Project[JCYJ20150529164918734]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS类目	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS记录号	WOS:000390636100017
出版者	ELSEVIER SCIENCE BV
引用统计	被引频次：68[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/321006/123528
专题	中国科学院金属研究所
通讯作者	Lv, Wei; Kang, Feiyu; Yang, Quan-Hong
作者单位	1.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China 2.Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China 3.Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Graphene Based Mat, Shenzhen 518055, Peoples R China 4.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China 5.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 6.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
推荐引用方式 GB/T 7714	Niu, Shuzhang,Lv, Wei,Zhou, Guangmin,et al. Electrostatic-spraying an ultrathin, multifunctional and compact coating onto a cathode for a long-life and high-rate lithium-sulfur battery[J]. NANO ENERGY,2016,30:138-145.
APA	Niu, Shuzhang.,Lv, Wei.,Zhou, Guangmin.,Shi, Huifa.,Qin, Xianying.,...&Yang, Quan-Hong.(2016).Electrostatic-spraying an ultrathin, multifunctional and compact coating onto a cathode for a long-life and high-rate lithium-sulfur battery.NANO ENERGY,30,138-145.
MLA	Niu, Shuzhang,et al."Electrostatic-spraying an ultrathin, multifunctional and compact coating onto a cathode for a long-life and high-rate lithium-sulfur battery".NANO ENERGY 30(2016):138-145.