DOI: 10.1016/j.scib.2020.07.012
论文题名: Low-temperature fusion fabrication of Li-Cu alloy anode with in situ formed 3D framework of inert LiCux nanowires for excellent Li storage performance
作者: Jia W. ; Liu Y. ; Wang Z. ; Qing F. ; Li J. ; Wang Y. ; Xiao R. ; Zhou A. ; Li G. ; Yu X. ; Hu Y.-S. ; Li H. ; Wang Z. ; Huang X. ; Chen L.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2020
卷: 65, 期: 22 起始页码: 1907
结束页码: 1915
语种: 英语
中文关键词: 3D nanostructure
; Lithium dendrite
; Lithium metal anode
; Lithium-copper alloy
; Nanowire
英文关键词: Anodes
; Binary alloys
; Lithium alloys
; Metals
; Nanowires
; Temperature
; Cooling process
; Dendrite growth
; Dual phase
; Li-storage
; Low temperatures
; Phase segregations
; Scaled-up
; Solid solution phase
; Copper alloys
英文摘要: The commercialization of rechargeable Li metal batteries is hindered by dendrite growth and volumetric variation. Herein, we report a Li-rich dual-phase Li-Cu alloy with built-in 3D conductive skeleton to replace conventional planar Li anode. The Li-Cu alloy is simply prepared by fusion of Li and Cu metals at a relatively low-temperature of 500 °C, followed by a cooling process where phase-segregation leads to metallic Li phase distributed in the network of LiCux solid solution phase. Different from the common Li alloy, the electrochemical alloying reaction between Li and Cu metals is not observed. Therefore, the lithiophilic LiCux nanowires guides conformal plating of Li and the porous framework provides superior dimensional stability for the anode. This unique ferroconcrete-like structure of Li-Cu alloy enables dendrite-free Li plating for an expanded cycling lifetime. Constructing a new type of Li alloy with in situ formed electrochemically inactive framework is a promising and easily scaled-up strategy toward practical application of Li metal anodes. © 2020 Science China Press Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169930
Appears in Collections: 气候变化与战略
There are no files associated with this item.
作者单位: School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 611731, China; Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China; College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, China
Recommended Citation:
Jia W.,Liu Y.,Wang Z.,et al. Low-temperature fusion fabrication of Li-Cu alloy anode with in situ formed 3D framework of inert LiCux nanowires for excellent Li storage performance[J]. Science Bulletin,2020-01-01,65(22)