Characterization of Li-S Batteries Using Laboratory Sulfur X-ray Emission Spectroscopy.
Journal
ACS applied energy materials
ISSN: 2574-0962
Titre abrégé: ACS Appl Energy Mater
Pays: United States
ID NLM: 101718976
Informations de publication
Date de publication:
22 Mar 2021
22 Mar 2021
Historique:
received:
19
11
2020
accepted:
12
02
2021
entrez:
12
4
2021
pubmed:
13
4
2021
medline:
13
4
2021
Statut:
ppublish
Résumé
Application of laboratory-based X-ray analytical techniques that are capable of a reliable characterization of the chemical state of sulfur within bulk battery cathode in parallel with electrochemical characterization is essential for further development of lithium-sulfur batteries. In this work, MeV proton-induced X-ray emission (XES) sulfur measurements were performed in ex situ mode on laboratory-synthesized sulfur standards and precycled battery cathodes. The average sulfur charge was determined from the energy shift of the Kα emission line and from the spectral shape of the Kβ emission spectrum. Finally, operando Kα XES measurements were performed to monitor reduction of sulfur within battery cathode during discharge. The experimental approach presented here provides an important step toward more routine laboratory analysis of sulfur-based battery systems and also other sulfur-neighboring low-
Identifiants
pubmed: 33842854
doi: 10.1021/acsaem.0c02878
pmc: PMC8029652
doi:
Types de publication
Journal Article
Langues
eng
Pagination
2357-2364Informations de copyright
© 2021 The Authors. Published by American Chemical Society.
Déclaration de conflit d'intérêts
The authors declare no competing financial interest.
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