DOI: 10.1016/j.scib.2020.10.017
论文题名: On-site building of a Zn2+-conductive interfacial layer via short-circuit energization for stable Zn anode
作者: Xiao P. ; Xue L. ; Guo Y. ; Hu L. ; Cui C. ; Li H. ; Zhai T.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
卷: 66, 期: 6 起始页码: 545
结束页码: 552
语种: 英语
中文关键词: Interfacial layer
; On-site building
; V2O5
; Zinc ion batteries
; Zn anode
英文关键词: Energy storage
; Lithium compounds
; Timing circuits
; Vanadium pentoxide
; Coulombic efficiency
; Electrochemical performance
; Energy storage systems
; Environmental friendliness
; Interface modification
; Interfacial layer
; Poor performance
; Symmetrical cells
; Anodes
英文摘要: Aqueous zinc ion batteries (ZIBs) show great potential in large-scale energy storage systems for their advantages of high safety, low cost, high capacity, and environmental friendliness. However, the poor performance of Zn metal anode seriously hinders the application of ZIBs. Herein, we use the zinc-ion intercalatable V2O5·nH2O (VO) as the interface modification material, for the first time, to on-site build a Zn2+-conductive ZnxV2O5·nH2O (ZnVO) interfacial layer via the spontaneous short-circuit reaction between the pre-fabricated VO film and Zn metal foil. Compared with the bare Zn, the ZnVO-coated Zn anode exhibits better electrochemical performances with dendrite-free Zn deposits, lower polarization, higher coulombic efficiency over 99% after long cycles and 10 times higher cycle life, which is confirmed by constructing Zn symmetrical cell and Zn|ZnSO4 + Li2SO4|LiFePO4 full cell. © 2020 Science China Press Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170453
Appears in Collections: 气候变化与战略
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作者单位: State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China; Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Nankai University, Tianjin, 300071, China
Recommended Citation:
Xiao P.,Xue L.,Guo Y.,et al. On-site building of a Zn2+-conductive interfacial layer via short-circuit energization for stable Zn anode[J]. Science Bulletin,2021-01-01,66(6)