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

文献类型：期刊论文

作者Liu, Rui Jia2,3; Yang, Ling Xu1; Lin, Guang Qiang1; Bu, Huan Peng1; Wang, Wen Jun1; Liu, Hui Jun1; Zeng, Chao Liu1
刊名APPLIED SURFACE SCIENCE
出版日期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
DOI10.1016/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
WOS记录号WOS:000791555000002
出版者ELSEVIER
资助机构National Natural Science Foundation of China
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.

入库方式： OAI收割

来源：金属研究所

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