Catalytic cobalt phosphide Co2P/carbon nanotube nanocomposite as host material for high performance lithium-sulfur battery cathode

doi:10.1016/j.jallcom.2020.156289

CORC > 兰州理工大学 > 兰州理工大学 > 理学院

	Catalytic cobalt phosphide Co2P/carbon nanotube nanocomposite as host material for high performance lithium-sulfur battery cathode
	Shi, Zhaojiao; Feng, Wangjun; Wang, Xuan; Li, Miaomiao; Song, Changkun; Chen, Linjing
刊名	Journal of Alloys and Compounds
	2021-01-15
卷号	851
关键词	Carbon nanotubes Catalysis Cathodes Cobalt compounds Cobalt deposits Lithium compounds Lithium-ion batteries Reaction kinetics Sound insulating materials Carbon nanotubes materials Catalytic cobalts Catalytic functions Coulomb efficiency Electrical conductivity Electrochemical reactions Element mapping Hydrothermal methods
ISSN号	09258388
DOI	10.1016/j.jallcom.2020.156289
英文摘要	Lithium-sulfur batteries are one of the most promising cathode materials for next-generation lithium-ion batteries, but there are still having some problems, for example, poor electrical conductivity, slow shuttle effect, and slow electrochemical reaction kinetics. In this paper, carbon nanotubes materials with good conductivity are used as the substrate. Co2P with catalytic function is grown on the surface of carbon nanotubes by hydrothermal method as the host material of lithium-sulfur batteries. It is characterized by XRD, SEM, TEM, XPS and element mapping. The results showed that Co2P was successfully synthesized on the surface of carbon nanotubes. The study found that the addition of Co2P can promote the conversion of Li2S6 to Li2S4 and Li2S4 to Li2S2/Li2S, and inhibit the shuttle-through effect, improve the cycle stability of lithium-sulfur batteries, and the initial capacity reaches 1372 mAh/g at a current density of 0.1 C, the coulomb efficiency is above 96% with cycled 200 times at a current density of 0.2 C. © 2020 Elsevier B.V.
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000579868900012
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/115384]
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	Shi, Zhaojiao,Feng, Wangjun,Wang, Xuan,et al. Catalytic cobalt phosphide Co2P/carbon nanotube nanocomposite as host material for high performance lithium-sulfur battery cathode[J]. Journal of Alloys and Compounds,2021,851.
APA	Shi, Zhaojiao,Feng, Wangjun,Wang, Xuan,Li, Miaomiao,Song, Changkun,&Chen, Linjing.(2021).Catalytic cobalt phosphide Co2P/carbon nanotube nanocomposite as host material for high performance lithium-sulfur battery cathode.Journal of Alloys and Compounds,851.
MLA	Shi, Zhaojiao,et al."Catalytic cobalt phosphide Co2P/carbon nanotube nanocomposite as host material for high performance lithium-sulfur battery cathode".Journal of Alloys and Compounds 851(2021).