Superior electrochemcial performances of core-shell structured vanadium oxide@vanadium carbide composites for Li-ion storage

doi:10.1016/j.apsusc.2022.152904

CORC > 金属研究所 > 中国科学院金属研究所

	Superior electrochemcial performances of core-shell structured vanadium oxide@vanadium carbide composites for Li-ion storage
	Liu, Rui Jia 2,3; Yang, Ling Xu 1; Lin, Guang Qiang 1; Bu, Huan Peng 1; Wang, Wen Jun 1; Liu, Hui Jun 1; Zeng, Chao Liu 1
刊名	APPLIED SURFACE SCIENCE
	2022-06-30
卷号	588 页码:11
关键词	Vanadium carbide Vanadium oxide Lithium-ion batteries Anode Composite Heterostructure
ISSN号	0169-4332
DOI	10.1016/j.apsusc.2022.152904
通讯作者	Liu, Hui Jun(hui_jun_liu@163.com) ; Zeng, Chao Liu(clzeng@imr.ac.cn)
英文摘要	Vanadium oxide@vanadium carbide (VxOy@VxC) composites with a core-shell structure was constructed via a simple in-situ oxidation method, i.e. by oxidizing V2C precursor at 350-400 degrees C for 1 h under air atmosphere. As obtained VxOy@VxC composites are in the submicro-sized particle distribution. These VxOy@VxC composites have displayed remarkable electrochemical performances as anodes in lithium-ion batteries (LIBs), thereinto V2O5@VO2@V2C@VC composite exhibits the most impressive cycling stability, releasing-252.1 mAh g(-1) after 200 cycles at 0.5 A g(-1) with capacity retention of 89.5% and-492 mAh g(-1) in the continuous 120 cycles at 0.1 A g(-1). Such an outstanding electrochemical performance could benefit from the unique core-shell heterostructure of VxC encapsulated by VxOy, with an excellent structural stability. It is favorable to provide the excellent charge transfer field and effectively restrain the aggregation and structural deformation during the electrochemical reaction process. This design of V2O5@VO2@V2C@VC composite is promising for motivating the development of anode materials in LIBs.
资助项目	National Natural Science Foundation of China[51671204]
WOS研究方向	Chemistry ; Materials Science ; Physics
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000791555000002
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173950]
专题	金属研究所_中国科学院金属研究所
通讯作者	Liu, Hui Jun; Zeng, Chao Liu
作者单位	1.Songshan Lake Mat Lab, Dongguan 523808, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 3.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Liu, Rui Jia,Yang, Ling Xu,Lin, Guang Qiang,et al. Superior electrochemcial performances of core-shell structured vanadium oxide@vanadium carbide composites for Li-ion storage[J]. APPLIED SURFACE SCIENCE,2022,588:11.
APA	Liu, Rui Jia.,Yang, Ling Xu.,Lin, Guang Qiang.,Bu, Huan Peng.,Wang, Wen Jun.,...&Zeng, Chao Liu.(2022).Superior electrochemcial performances of core-shell structured vanadium oxide@vanadium carbide composites for Li-ion storage.APPLIED SURFACE SCIENCE,588,11.
MLA	Liu, Rui Jia,et al."Superior electrochemcial performances of core-shell structured vanadium oxide@vanadium carbide composites for Li-ion storage".APPLIED SURFACE SCIENCE 588(2022):11.