Facile Fabrication of Core-Shell Structure Fe3O4@C Nanodots for Enhanced Lithium-Sulfur Batteries

doi:10.1007/s40195-020-01104-1

	Facile Fabrication of Core-Shell Structure Fe3O4@C Nanodots for Enhanced Lithium-Sulfur Batteries
	He, Xiang-Rui 1,3; Zhang, Yu-Jiao 3; Yang, Li-Fan 2; Zhao, Ji-Lu 3; Li, Hong-Tai 1; Gao, Yi-Bo 3; Wang, Bao 3; Guo, Xiao-Dong 1
刊名	ACTA METALLURGICA SINICA-ENGLISH LETTERS
	2020-07-09
页码	7
关键词	Fe3O4 Nanodots Cathode Lithium-sulfur batteries
ISSN号	1006-7191
DOI	10.1007/s40195-020-01104-1
英文摘要	Lithium sulfur battery (LSB) is widely considered as a next-generation battery system due to its high theoretical energy density of 2567 Wh kg(-1). However, several inherent issues obstruct the business application of LSB. To address these issues, we assemble core-shell structure Fe3O4@C nanodots with 5 nm diameter as a valid sulfur host via a convenient organic pyrolysis treatment followed by calcination. The nanosized Fe(3)O(4)particles could expose more chemisorption sites and inhibit the polysulfides shuttle. Moreover, the carbon layer could not only increase the conductivity but also ensure structural integrity during cyclic process. Furthermore, the mesoporous channels around Fe3O4@C could supply sufficient space to load sulfur and physically restrict the shuttle of polysulfides. Thus, the resultant S/Fe3O4@C cathode shows a highly initial capacity of 1089 mAh g(-1)at 0.2 C, even retains 655 mAh g(-1)over 200 cycles at 1 C.
资助项目	National Science Foundation of China[51772296] ; National Science Foundation of China[21878195] ; National Science Foundation of China[21805018] ; National Science Foundation of China[21805198] ; Foundation for State Key Laboratory of Biochemical Engineering
WOS关键词	POLYSULFIDE SHUTTLE ; COMPOSITES
WOS研究方向	Metallurgy & Metallurgical Engineering
语种	英语
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
WOS记录号	WOS:000546864200003
资助机构	National Science Foundation of China ; Foundation for State Key Laboratory of Biochemical Engineering
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/41348]
专题	中国科学院过程工程研究所
通讯作者	Wang, Bao; Guo, Xiao-Dong
作者单位	1.Sichuan Univ, Sch Chem Engn, Chengdu 610065, Peoples R China 2.Sun Yat Sen Univ, Sch Chem, Guangzhou 510275, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	He, Xiang-Rui,Zhang, Yu-Jiao,Yang, Li-Fan,et al. Facile Fabrication of Core-Shell Structure Fe3O4@C Nanodots for Enhanced Lithium-Sulfur Batteries[J]. ACTA METALLURGICA SINICA-ENGLISH LETTERS,2020:7.
APA	He, Xiang-Rui.,Zhang, Yu-Jiao.,Yang, Li-Fan.,Zhao, Ji-Lu.,Li, Hong-Tai.,...&Guo, Xiao-Dong.(2020).Facile Fabrication of Core-Shell Structure Fe3O4@C Nanodots for Enhanced Lithium-Sulfur Batteries.ACTA METALLURGICA SINICA-ENGLISH LETTERS,7.
MLA	He, Xiang-Rui,et al."Facile Fabrication of Core-Shell Structure Fe3O4@C Nanodots for Enhanced Lithium-Sulfur Batteries".ACTA METALLURGICA SINICA-ENGLISH LETTERS (2020):7.