Issue 42, 2015
From the journal:

Nanoscale

Dependence of Young's modulus on the sodium content within the structural tunnels of a one-dimensional Na-ion battery cathode

M. Maksud,a   N. K. R. Palapati,a   B. W. Byles,b   E. Pomerantseva,b   Y. Liuc  and  A. Subramanian*a  

* Corresponding authors

a Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
E-mail: asubramanian@vcu.edu

b Department of Materials Science and Engineering, Drexel University, Philadelphia, PA 19104, USA

c Department of Materials Science and Engineering, North Carolina State University, Raleigh, NC 27606, USA

Abstract

We report on the Young's modulus (YM) of single-crystalline Na4Mn9O18 (or Na0.44MnO2) nanowires (NWs), which have shown promise as reversible sodium-ion (Na+) intercalation cathodes with high capacity and excellent cyclability. In addition, acid treatment of this material yielded proton stabilized Na0.44−yMnO2 (y ∼ 0.23) NWs with a 74% increase in the YM. The tight correlation between YM and ionic content within the crystalline tunnels is particularly significant, since it points to the strong dependence of elastic properties on state-of-charge (SOC) within battery materials.

Graphical abstract: Dependence of Young's modulus on the sodium content within the structural tunnels of a one-dimensional Na-ion battery cathode

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Article information

DOI
https://doi.org/10.1039/C5NR06557G
Article type
Communication
Submitted
23 Sep 2015
Accepted
03 Oct 2015
First published
05 Oct 2015

Nanoscale, 2015,7, 17642-17648

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Dependence of Young's modulus on the sodium content within the structural tunnels of a one-dimensional Na-ion battery cathode

M. Maksud, N. K. R. Palapati, B. W. Byles, E. Pomerantseva, Y. Liu and A. Subramanian, Nanoscale, 2015, 7, 17642 DOI: 10.1039/C5NR06557G

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