The stability of P2-layered sodium transition metal oxides in ambient atmospheres

Wenhua Zuo, Jimin Qiu, Xiangsi Liu, Fucheng Ren, Haodong Liu, Huajin He, Chong Luo, Jialin Li, Gregorio F. Ortiz, Huanan Duan, Jinping Liu (), Ming-Sheng Wang, Yangxing Li, Riqiang Fu and Yong Yang ()
Additional contact information
Wenhua Zuo: Xiamen University
Jimin Qiu: Xiamen University
Xiangsi Liu: Xiamen University
Fucheng Ren: Xiamen University
Haodong Liu: University of California San Diego
Huajin He: Xiamen University
Chong Luo: Xiamen University, Xiamen
Jialin Li: Xiamen University
Gregorio F. Ortiz: Xiamen University
Huanan Duan: Shanghai Jiao Tong University
Jinping Liu: Wuhan University of Technology
Ming-Sheng Wang: Xiamen University, Xiamen
Riqiang Fu: National High Magnetic Field Laboratory, 1800 E. Paul Dirac Drive
Yong Yang: Xiamen University

Nature Communications, 2020, vol. 11, issue 1, 1-12

Abstract: Abstract Air-stability is one of the most important considerations for the practical application of electrode materials in energy-harvesting/storage devices, ranging from solar cells to rechargeable batteries. The promising P2-layered sodium transition metal oxides (P2-NaxTmO2) often suffer from structural/chemical transformations when contacted with moist air. However, these elaborate transitions and the evaluation rules towards air-stable P2-NaxTmO2 have not yet been clearly elucidated. Herein, taking P2-Na0.67MnO2 and P2-Na0.67Ni0.33Mn0.67O2 as key examples, we unveil the comprehensive structural/chemical degradation mechanisms of P2-NaxTmO2 in different ambient atmospheres by using various microscopic/spectroscopic characterizations and first-principle calculations. The extent of bulk structural/chemical transformation of P2-NaxTmO2 is determined by the amount of extracted Na+, which is mainly compensated by Na+/H+ exchange. By expanding our study to a series of Mn-based oxides, we reveal that the air-stability of P2-NaxTmO2 is highly related to their oxidation features in the first charge process and further propose a practical evaluating rule associated with redox couples for air-stable NaxTmO2 cathodes.

Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-020-17290-6 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17290-6

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/s41467-020-17290-6

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().