Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 8, 2018
Previous Article Next Article

Revealing the charge/discharge mechanism of Na–O2 cells by in situ soft X-ray absorption spectroscopy

Author affiliations

Abstract

Developing high energy density batteries, such as metal–air systems, requires a good understanding of their underlying electrochemical principles. In situ characterization methods provide valuable insight into the discharge/charge mechanism of Na–O2 cells. However, previous application of soft X-ray absorption spectroscopy has been limited to ex situ studies on the discharge products of the cell. Here we report an in situ soft X-ray absorption technique for Na–O2 cells to study the formation and decomposition of the discharge products during battery cycling. Taking advantage of the elemental selectivity and chemical sensitivity of soft X-ray absorption spectroscopy, we reveal the instability of discharge products in the Na–O2 cell environment. Our results illustrate that in situ soft X-ray absorption spectroscopy is an efficient probe to study the electrochemical mechanism of alkali metal–O2 energy storage systems.

Graphical abstract: Revealing the charge/discharge mechanism of Na–O2 cells by in situ soft X-ray absorption spectroscopy

Back to tab navigation

Supplementary files

Article information


Submitted
09 Mar 2018
Accepted
16 May 2018
First published
24 May 2018

Energy Environ. Sci., 2018,11, 2073-2077
Article type
Paper

Revealing the charge/discharge mechanism of Na–O2 cells by in situ soft X-ray absorption spectroscopy

M. N. Banis, H. Yadegari, Q. Sun, T. Regier, T. Boyko, J. Zhou, Y. M. Yiu, R. Li, Y. Hu, T. K. Sham and X. Sun, Energy Environ. Sci., 2018, 11, 2073
DOI: 10.1039/C8EE00721G

Social activity

Search articles by author

Spotlight

Advertisements