Operando X-ray absorption spectroscopy applied to battery materials at ICGM

The challenging case of BiSb's sodiation

Journal article (2019)

Authors

Ali Darwiche Université de Montpellier
Fabrizio Murgia Université de Montpellier
M. Fehse European Synchrotron Radiation Facility, CNRS FR3459, RST/Storage of Electrochemical Energy - AS
Abdelfattah Mahmoud Université de Liège
Antonella Iadecola CNRS FR3459
Stéphanie Belin DiffAbs Beamline Synchrotron SOLEIL, L'Orme des Merisiers Saint-Aubin
Camille La Fontaine L'Orme les Merisiers Saint-Aubin
Valérie Briois L'Orme les Merisiers Saint-Aubin
Raphael P. Hermann Oak Ridge National Laboratory
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Research Group
RST/Storage of Electrochemical Energy (AS) (TU Delft)
Batteries X-ray absorption spectroscopy Electrode materials Electrochemical mechanism Energy materials Operando measurements
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Published Date

2019

Language

English

Reuse Rights

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Faculty

Applied Sciences

Department

RST/Radiation, Science and Technology

Research Group

RST/Storage of Electrochemical Energy

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.