Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries

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	Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries
	Zheng, Cheng ; Niu, Shuzhang ; Lv, Wei ; Zhou, Guangmin ; Li, Jia ; Fan, Shaoxun ; Deng, Yaqian ; Pan, Zhengze ; Li, Baohua ; Kang, Feiyu ; Yang, Quan-Hong
刊名	NANO ENERGY
	2017-03-01
卷号	33 页码:306-312
关键词	Lithium-sulfur batteries 3D alpha-Fe2O3/graphene hybrid Redox reaction Polysulfides transformation
ISSN号	2211-2855
通讯作者	Lv, W ; Yang, QH (reprint author), Tsinghua Univ, Grad Sch Shenzhen, Engn Lab Functionalized Carbon Mat, Shenzhen 518055, Peoples R China. ; Lv, W ; Yang, QH (reprint author), Tsinghua Univ, Grad Sch Shenzhen, Shenzhen Key Lab Graphene Based Mat, Shenzhen 518055, Peoples R China.
中文摘要	A three-dimensional (3D) hierarchical porous graphene macrostructure coupled with uniformly distributed alpha-Fe2O3 nano-particles (denoted Fe-PGM) was designed as a sulfur host in a lithium- sulfur battery, and was prepared by a hydrothermal method. In this hybrid structure, the alpha-Fe2O3 nano-particles are proved to not only strongly interact with the polysulfides, but more importantly, chemically promote their transformation to insoluble species during the charge/discharge process, working as chemical barriers for the shuttling of the lithium polysulfides (LiPSs). Therefore, together with 3D hierarchical porous structure facilitating fast electron/ion transfer, Fe-PGM as a sulfur host in a cathode contributes to a high rate performance (565 mAh g(-1) at a high rate of 5 C relative to 1571 mAh g(-1) at 0.3 C) as well as long cyclic stability (an ultralow capacity fading rate of 0.049% per cycle over 1000 cycles at the high current rate of 5 C).
学科主题	Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
收录类别	SCI
资助信息	National Basic Research Program of China [2014CB932400]; National Natural Science Foundation of China [51525204, 51502150, 51232005]; Shenzhen Basic Research Project [JCYJ20150529164918734, KQCX20140521161756227]; National Science Foundation for Post-doctoral Scientists of China [2015M571038]
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/321006/78261]
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	Zheng, Cheng,Niu, Shuzhang,Lv, Wei,et al. Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries[J]. NANO ENERGY,2017,33:306-312.
APA	Zheng, Cheng.,Niu, Shuzhang.,Lv, Wei.,Zhou, Guangmin.,Li, Jia.,...&Yang, Quan-Hong.(2017).Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries.NANO ENERGY,33,306-312.
MLA	Zheng, Cheng,et al."Propelling polysulfides transformation for high-rate and long-life lithiumsulfur batteries".NANO ENERGY 33(2017):306-312.