Anion-doped CeO2 for high-performance lithium-sulfur batteries

doi:10.1016/j.apsusc.2022.152613

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	Anion-doped CeO2 for high-performance lithium-sulfur batteries
	Chen, Jingzhou; Feng, Wangjun; W., Zhao
刊名	Applied Surface Science
	2022-05-15
卷号	584
关键词	Cathodes Cerium oxide Costs Density functional theory Doping (additives) Energy gap Ions Lithium batteries Lithium sulfur batteries Reaction kinetics Sulfur compounds Anion doping Capacity costs Cathodes material CeO2-xSx nanoparticle Commercialisation Lithium/sulfur batteries Low-costs Performance Theoretical capacity Ultra-high
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2022.152613
英文摘要	Li-S batteries are potential candidates for next-generation energy storage devices because of their ultra-high theoretical capacity and low cost. However, shuttle effect and slow reaction kinetics hinder further commercialization of Li-S batteries. In the present work, CeO2-xSx was prepared using S-doped CeO2 as a cathode material to address some existing challenges of Li-S batteries. After density function theory calculations, it was found that S doping not only effectively shortens the band gap but also enhances the adsorption capacity of the composite to Li2S6, which has a positive effect on mitigating the shuttle effect. The battery also has a highly reversible cycling capability. The first charge/discharge capacity of the battery at 0.1C reached 1380 mAh/g, while the capacity retention rate of the battery reached 90% after 500 cycles at 1C. This provides a new idea for anion doping to be used to enhance the performance of lithium-sulfur batteries. © 2022
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	Elsevier B.V.
WOS记录号	WOS:000773715400004
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158062]
专题	理学院
作者单位	School of Science, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Chen, Jingzhou,Feng, Wangjun,W., Zhao. Anion-doped CeO2 for high-performance lithium-sulfur batteries[J]. Applied Surface Science,2022,584.
APA	Chen, Jingzhou,Feng, Wangjun,&W., Zhao.(2022).Anion-doped CeO2 for high-performance lithium-sulfur batteries.Applied Surface Science,584.
MLA	Chen, Jingzhou,et al."Anion-doped CeO2 for high-performance lithium-sulfur batteries".Applied Surface Science 584(2022).