A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries

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	A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries
	Luo, Chong ; Lv, Wei ; Deng, Yaqian ; Zhou, Guangmin ; Pan, Zheng-Ze ; Niu, Shuzhang ; Li, Baohua ; Kang, Feiyu ; Yang, Quan-Hong
刊名	SMALL
	2017-07-19
卷号	13 期号:27 页码:-
ISSN号	1613-6810
通讯作者	Lv, W ; Yang, QH (reprint author), Tsinghua Univ, Engn Lab Functionalized Carbon Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China. ; Lv, W ; Yang, QH (reprint author), Tsinghua Univ, Shenzhen Key Lab Graphene Based Mat, Grad Sch Shenzhen, Shenzhen 518055, Peoples R China. ; Yang, QH (reprint author), Tsinghua Univ, TBSI, Shenzhen 518055, Peoples R China.
中文摘要	The sulfur content in carbon-sulfur hybrid using the melt-diffusion method is normally lower than 70 wt%, which greatly decreases the energy density of the cathode in lithium-sulfur (Li-S) batteries. Here, a scalable method inspired by the commercialized production of Na2S is used to prepare a hierarchical porous carbon-sulfur hybrid (denoted HPC-S) with high sulfur content (approximate to 85 wt%). The HPC-S is characterized by the structure of sulfur nanodots naturally embedded in a 3D carbon network. The strategy uses Na2SO4 as the starting material, which serves not only as the sulfur precursor but also as a salt template for the formation of the 3D carbon network. The HPC-S cathode with such a high sulfur content shows excellent rate performance and cycling stability in Li-S batteries because of the sulfur nanoparticles, the unique carbon framework, and the strong interaction between them. The production method can also be readily scaled up and used in practical Li-S battery applications.
学科主题	Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter
收录类别	SCI
资助信息	National Natural Science Foundation of China [U1601206, 51525204, 51372167, U1401243]; National Basic Research Program of China [2014CB932400]; Shenzhen Basic Research Project [ZDSYS20140509172959981, JCYJ20150529164918734, JCYJ20150331151358140, JCYJ20150331151358136]
语种	英语
公开日期	2017-08-17
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/78038]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	Luo, Chong,Lv, Wei,Deng, Yaqian,et al. A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries[J]. SMALL,2017,13(27):-.
APA	Luo, Chong.,Lv, Wei.,Deng, Yaqian.,Zhou, Guangmin.,Pan, Zheng-Ze.,...&Yang, Quan-Hong.(2017).A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries.SMALL,13(27),-.
MLA	Luo, Chong,et al."A Dual-Function Na2SO4 Template Directed Formation of Cathode Materials with a High Content of Sulfur Nanodots for Lithium-Sulfur Batteries".SMALL 13.27(2017):-.