DOI: 10.1016/j.scib.2020.06.005
论文题名: A robust, highly reversible, mixed conducting sodium metal anode
作者: Cao K. ; Ma Q. ; Tietz F. ; Xu B.B. ; Yan M. ; Jiang Y.
刊名: Science Bulletin
ISSN: 20959273
出版年: 2021
卷: 66, 期: 2 起始页码: 179
结束页码: 186
语种: 英语
中文关键词: Cycling stability
; Dendrite
; Sodium metal anode
; Sodium metal battery
; Solid Na-ion conductor
英文关键词: Corrosion protection
; Electrolytes
; Redox reactions
; Secondary batteries
; Sodium
; Architecture engineering
; Carbonate electrolytes
; Charge/discharge
; Composite anodes
; Cycling stability
; Dendrite growth
; Organic electrolyte
; Rate capabilities
; Anodes
英文摘要: Sodium metal anode holds great promise in pursuing high-energy and sustainable rechargeable batteries, but severely suffers from fatal dendrite growth accompanied with huge volume change. Herein, a robust mixed conducting sodium metal anode is designed through incorporating NaSICON-type solid Na-ion conductor into bulk Na. A fast and continuous pathway for simultaneous transportation of electrons and Na+ is established throughout the composite anode. The intimate contact between Na-ion conducting phase and Na metallic phase constructs abundant two-phase boundaries for fast redox reactions. Further, the compact configuration of the composite anode substantially protects Na metal from being corroded by liquid organic electrolyte for the minimization of side reactions. Benefiting from the unique configuration, the composite anode shows highly reversible and durable Na plating/stripping behavior. The symmetric cells exhibit ultralong lifespan for over 700 h at 1 mA cm−2 with a high capacity of 5 mAh cm−2 and outstanding rate capability up to 8 mA cm−2 in the carbonate electrolyte. Full cells with Na3V2(PO4)3/C cathode demonstrate impressive cycling stability (capacity decay of 0.012% per cycle) and low charge/discharge polarization as well. This work provides new insights into rational design and development of robust sodium metal anode through an architecture engineering strategy for advanced rechargeable sodium batteries. © 2020 Science China Press Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/170200
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 Science and Engineering, State Key Laboratory of Clean Energy Ultilization, Zhejiang University, Hangzhou, 310027, China; Forschungszentrum Jülich GmbH, Institute of Energy and Climate Research, Materials Synthesis and Processing (IEK-1), Jülich, 52425, Germany; Smart Materials and Surfaces Lab, Mechanical Engineering, Faculty of Engineering and Environment, Northumbria University, Newcastle upon Tyne, NE1 8ST, United Kingdom
Recommended Citation:
Cao K.,Ma Q.,Tietz F.,et al. A robust, highly reversible, mixed conducting sodium metal anode[J]. Science Bulletin,2021-01-01,66(2)