Operando X-ray absorption spectroscopy applied to battery materials at ICGM: The challenging case of BiSb's sodiation

Ali Darwiche, Fabrizio Murgia, Marcus Fehse, Abdelfattah Mahmoud, Antonella Iadecola, Stéphanie Belin, Camille La Fontaine, Valérie Briois, Raphael P. Hermann, More Authors

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)

Abstract

X-ray absorption spectroscopy (XAS) is a synchrotron-based, element-specific, short-range structural method largely used in the study of materials, already widely employed for the study of the electrochemical processes in battery systems. The high penetration of the X-rays makes XAS particularly suited for the study of battery materials under operando conditions using specifically developed in situ electrochemical cells. In this paper, the application of XAS to the study of battery materials carried out at Institut Charles Gerhardt Montpellier (France) will be outlined, illustrating the type of information provided by XAS. The challenging study of the sodiation of Bi0.50Sb0.50 followed individually and simultaneously at both metals will be also presented in order to highlight the typical advantages of this technique even when it is pushed at its technical limits.

Original languageEnglish
Number of pages13
JournalEnergy Storage Materials
Volume21
DOIs
Publication statusPublished - 2019

Keywords

  • Batteries
  • Electrochemical mechanism
  • Electrode materials
  • Energy materials
  • Operando measurements
  • X-ray absorption spectroscopy

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