Lithium/Sulfur Batteries Upon Cycling: Structural Modifications and Species Quantification by In Situ and Operando X-Ray Diffraction Spectroscopy

Walus, S.; Barchasz, C.; Bouchet, R.; Leprêtre, J.-C.; Colin, J.-F.; Martin, J.-F.; Elkaïm, E.; Baehtz, C.; Alloin, F.

doi:10.1002/aenm.201500165

Lithium/Sulfur Batteries Upon Cycling: Structural Modifications and Species Quantification by In Situ and Operando X-Ray Diffraction Spectroscopy

Walus, S.; Barchasz, C.; Bouchet, R.; Leprêtre, J.-C.; Colin, J.-F.; Martin, J.-F.; Elkaïm, E.; Baehtz, C.; Alloin, F.

Abstract

A quantitative analysis of in situ and operando X-ray diffraction studies allows for deeper insight into the mechanism of Li2S formation and consumption. A two-step reaction process is proposed for both discharge and charge. Changing selectivity for Li2S formation is estimated, with solely Li2S being formed during the earliest step, followed by possible concurrent formation of Li2S2 intermediate in the further step of discharge.

Keywords: Lithium/Sulfur Battery; x-Ray diffraction, XRD, EXAFS, in operando

Beteiligte Forschungsanlagen

Rossendorf Beamline an der ESRF DOI: 10.1107/S1600577520014265

Verknüpfte Publikationen

DOI: 10.1107/S1600577520014265 is cited by this (Id 23215) publication

Advanced Engineering Materials 5(2015), 1500165-1500170
DOI: 10.1002/aenm.201500165
Cited 140 times in Scopus

Permalink: https://www.hzdr.de/publications/Publ-23215