Enhanced electrochemical performance of lithium-sulfur batteries using a V2O5/graphene interlayer

doi:10.1016/j.jallcom.2021.159131

	Enhanced electrochemical performance of lithium-sulfur batteries using a V2O5/graphene interlayer
	Cheng, Pu 1,3; Cao, Dianliang 2; Sun, Kai 1,3; Li, Yiding 1,3; Fu, Yujun 1,3; Zhao, Yonggang 1,3; Liu, Dequan 1,3; He, Deyan 1,3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2021-07-05
卷号	868 页码:8
关键词	Lithium-sulfur batteries V2O5 Vice-electrode Large voltage window Shuttle effect
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2021.159131
通讯作者	Liu, Dequan(liudq@lzu.edu.cn) ; He, Deyan(hedy@lzu.edu.cn)
英文摘要	To improve the electrochemical performance of lithium-sulfur (Li-S) batteries, we develop a new strategy to construct the V2O5 yolk-shell microspheres/graphene nanosheets (V2O5/G) layer on commercial poly-propylene (PP) separator as a vice-electrode. On one hand, the V2O5/G interlayer can act as a barrier to block polysulfides diffusion and then suppress the troublesome shuttle effect. On the other hand, lithium ions can insert in and extract from V2O5 during discharge/charge processes, and thus contribute extra cathode capacity and large voltage window to the batteries. As expected, the Li-S batteries with a V2O5/G interlayer deliver a large voltage window of 2.0 V (3.6-1.6 V) and a significantly improved electrochemical performance. The work provides a new idea for the design of the high-performance Li-S battery. (C) 2021 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[11674138] ; Fundamental Research Funds for the Central Universities[lzujbky-2020-cd02]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000636039600051
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/137601]
专题	中国科学院近代物理研究所
通讯作者	Liu, Dequan; He, Deyan
作者单位	1.Lanzhou Univ, Sch Phys Sci & Technol, Minist Educ, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Pu,Cao, Dianliang,Sun, Kai,et al. Enhanced electrochemical performance of lithium-sulfur batteries using a V2O5/graphene interlayer[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,868:8.
APA	Cheng, Pu.,Cao, Dianliang.,Sun, Kai.,Li, Yiding.,Fu, Yujun.,...&He, Deyan.(2021).Enhanced electrochemical performance of lithium-sulfur batteries using a V2O5/graphene interlayer.JOURNAL OF ALLOYS AND COMPOUNDS,868,8.
MLA	Cheng, Pu,et al."Enhanced electrochemical performance of lithium-sulfur batteries using a V2O5/graphene interlayer".JOURNAL OF ALLOYS AND COMPOUNDS 868(2021):8.