Synergistic effect of different configurations on the anionic redox reaction in Na-deficient oxides for sodium ion batteries
Utilizing the anionic redox reaction in P2 layered compounds is one way to improve the specific capacity of cathodes for sodium-ion batteries. In this work, we compare the difference and synergistic effects of various configurations including Na-O-Mg, Na-O-Zn and Na-O-Cu on the anionic redox reaction through systematic studies of NaMnMO and NaMnMMO (M, M, M = Mg, Cu, Zn). The work demonstrates that the reversibility of the anionic redox reaction and the structural stability of the oxides can be tailored by modulating different configurations. In (ex)-situ X-ray diffraction and the phase stabilities by DFT calculations indicate that with the increased bond strength from Mg-O, Zn-O to Cu–O bond in the TM layers, the structural phase transition from P2 lattice to O2 lattice in the compounds is much suppressed. In these compounds, the cathode material NaMnCuZnO combining Na-O-Zn and Na-O-Cu configurations balances the anionic redox activity and the structural stability. Our experiments and calculations reveal that the relatively strong Zn-O and Cu–O interactions in NaMnZnCuO account for the structural stability and improved electrochemical properties. The findings gained here may inspire the design and development of cathodes employing anionic redox chemistry for sodium-ion batteries.
China Scholarship Council;National Natural Science Foundation of China;National Natural Science Foundation of China;National Natural Science Foundation of China;
|WOS Research Area|
Engineering, Environmental ; Engineering, Chemical
|WOS Accession No|
|EI Accession Number|
Cathodes ; Copper compounds ; Design for testability ; Manganese compounds ; Metal ions ; Redox reactions ; Sodium compounds ; Stability ; Zinc compounds
|ESI Classification Code|
Metallurgy:531.1 ; Secondary Batteries:702.1.2 ; Chemical Reactions:802.2
|ESI Research Field|
Cited Times [WOS]:1
|Document Type||Journal Article|
|Department||Department of Materials Science and Engineering|
1.Department of Materials Engineering,KU Leuven,Leuven,3001,Belgium
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shen Zhen,518055,China
3.School of Physical Science and Technology,Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics,Yi Li Normal University,Yining,835000,China
4.College of Materials Science and Engineering,Sichuan University,Chengdu,610065,China
Liu，Qiong,Zheng，Wei,Su，Xin,et al. Synergistic effect of different configurations on the anionic redox reaction in Na-deficient oxides for sodium ion batteries[J]. CHEMICAL ENGINEERING JOURNAL,2023,452.
Liu，Qiong.,Zheng，Wei.,Su，Xin.,Zhang，Xuan.,Han，Ning.,...&Fransaer，Jan.(2023).Synergistic effect of different configurations on the anionic redox reaction in Na-deficient oxides for sodium ion batteries.CHEMICAL ENGINEERING JOURNAL,452.
Liu，Qiong,et al."Synergistic effect of different configurations on the anionic redox reaction in Na-deficient oxides for sodium ion batteries".CHEMICAL ENGINEERING JOURNAL 452(2023).
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