Slight compositional variation-induced structural disorder-to-order transition enables fast Na+ storage in layered transition metal oxides

Yuansheng Shi, Pengfeng Jiang, Shicheng Wang, Weixin Chen, Bin Wei, Xueyi Lu, Guoyu Qian, Wang Hay Kan, Huaican Chen, Wen Yin, Yang Sun and Xia Lu ()
Additional contact information
Yuansheng Shi: Sun Yat-sen University
Pengfeng Jiang: Sun Yat-sen University
Shicheng Wang: Sun Yat-sen University
Weixin Chen: Sun Yat-sen University
Bin Wei: Sun Yat-sen University
Xueyi Lu: Sun Yat-sen University
Guoyu Qian: Sun Yat-sen University
Wang Hay Kan: Spallation Neutron Source Science Center
Huaican Chen: Spallation Neutron Source Science Center
Wen Yin: Spallation Neutron Source Science Center
Yang Sun: Sun Yat-sen University
Xia Lu: Sun Yat-sen University

Nature Communications, 2022, vol. 13, issue 1, 1-12

Abstract: Abstract The omnipresent Na+/vacancy orderings change substantially with the composition that inevitably actuate the ionic diffusion in rechargeable batteries. Therefore, it may hold the key to the electrode design with high rate capability. Herein, the influence of Na+/vacancy ordering on Na+ mobility is demonstrated firstly through a comparative investigation in P2-Na2/3Ni1/3Mn2/3O2 and P2-Na2/3Ni0.3Mn0.7O2. The large zigzag Na+/vacancy intralayer ordering is found to accelerate Na+ migration in P2-type Na2/3Ni1/3Mn2/3O2. By theoretical simulations, it is revealed that the Na+ ordering enables the P2-type Na2/3Ni1/3Mn2/3O2 with higher diffusivities and lower activation energies of 200 meV with respect to the P3 one. The quantifying diffusional analysis further prove that the higher probability of the concerted Na+ ionic diffusion occurs in P2-type Na2/3Ni1/3Mn2/3O2 due to the appropriate ratio of high energy ordered Na ions (Naf) occupation. As a result, the interplay between the Na+/vacancy ordering and Na+ kinetic is well understood in P2-type layered cathodes.

Date: 2022
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.nature.com/articles/s41467-022-35597-4 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:13:y:2022:i:1:d:10.1038_s41467-022-35597-4

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

DOI: 10.1038/s41467-022-35597-4

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 ().