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

文献类型：期刊论文

作者Niu, Shuzhang2,3,4; Lv, Wei3,4; Zhou, Guangmin6; Shi, Huifa3,4,5; Qin, Xianying3,4; Zheng, Cheng3,4; Zhou, Tianhong3,4,5; Luo, Chong3,4,5; Deng, Yaqian3,4,5; Li, Baohua3,4
刊名NANO ENERGY
出版日期2016-12-01
卷号30页码:138-145
关键词Multifunctional polysulfide blocking layer Electrostatic-spraying deposition Lithium sulfur batteries High-rate performance Long cycle life
ISSN号2211-2855
DOI10.1016/j.nanoen.2016.09.044
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)
英文摘要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.
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
语种英语
WOS记录号WOS:000390636100017
出版者ELSEVIER SCIENCE BV
资助机构National Basic Research Program of China ; National Natural Science Foundation of China ; Shenzhen Basic Research Project
源URL[http://ir.imr.ac.cn/handle/321006/123527]  
专题金属研究所_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.Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
2.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, Shenzhen 518055, Peoples R China
3.Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China
4.Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Graphene Based Mat, Shenzhen 518055, Peoples R China
5.Tsinghua Univ, Sch Mat Sci & Engn, Beijing 100084, Peoples R China
6.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, 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.

入库方式： OAI收割

来源：金属研究所

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