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Title:Sulfur speciation in Li–S batteries determined by operando laboratory X-ray emission spectroscopy
Authors:ID Rajh, Ava (Author)
ID Vižintin, Alen (Author)
ID Hoszowska, Joanna (Author)
ID Dominko, Robert (Author)
ID Kavčič, Matjaž (Author)
Files:URL URL - Source URL, visit https://pubs.acs.org/doi/10.1021/acsaem.4c02330
 
.pdf PDF - Presentation file, download (2,22 MB)
MD5: C4778DF1BBDD8D8061305A092592AED6
 
Language:English
Typology:1.01 - Original Scientific Article
Organization:Logo KI - National Institute of Chemistry
Abstract:In this work, operando sulfur X-ray emission measurementson a Li−S battery cathode were performed using a laboratory setup as analternative to more common synchrotron radiation based absorptionstudies. Photoexcitation by an X-ray tube was used. Valence-to-core Kβ X-ray emission spectra were recorded with a wavelength dispersive crystalspectrometer in von Hamos geometry, providing excellent energyresolution and good detection efficiency. The setup was used to recordex situ S Kβ emission spectra from S cathodes from the Li−S battery andalso under operando conditions. Average S oxidation state within thebattery cathode during battery cycling was determined from the shape ofthe Kβ emission spectra. A more detailed S species characterization wasperformed by fitting a linear combination of previously measuredlaboratory synthesized standards to the measured spectra. Relative amounts of different S species in the cathode were determinedduring the cycling of the Li−S battery. The main advantage of X-ray emission spectroscopy is that it can be performed onconcentrated samples with S loading comparable to a real battery. The approach shows great promise for routine laboratory analysisof electrochemical processes in Li−S batteries and other sulfur-based systems under operando conditions.
Keywords:X-ray emission spectroscopy, lithium−sulfur batteries, operando measurements, oxidation state, von Hamos spectrometer
Publication status:Published
Publication version:Version of Record
Publication date:01.12.2024
Publisher:American Chemical Society
Year of publishing:2024
Number of pages:str. 11135-11143
Numbering:Vol. 7, iss. 23
Source:ACS applied energy materials
PID:20.500.12556/DiRROS-21080 New window
UDC:544.5/.6
ISSN on article:2574-0962
DOI:10.1021/acsaem.4c02330 New window
COBISS.SI-ID:218392579 New window
Copyright:© 2024 The Authors. Published by American Chemical Society
Note:Nasl. z nasl. zaslona; Soavtorji iz Slovenije: Alen Vizintin, Robert Dominko, Matjaž Kavčič; Opis vira z dne 10. 12. 2024;
Publication date in DiRROS:19.12.2024
Views:204
Downloads:110
Metadata:XML DC-XML DC-RDF
:
RAJH, Ava, VIŽINTIN, Alen, HOSZOWSKA, Joanna, DOMINKO, Robert and KAVČIČ, Matjaž, 2024, Sulfur speciation in Li–S batteries determined by operando laboratory X-ray emission spectroscopy. ACS applied energy materials [online]. 2024. Vol. 7, no. 23, p. 11135–11143. [Accessed 3 April 2025]. DOI 10.1021/acsaem.4c02330. Retrieved from: https://dirros.openscience.si/IzpisGradiva.php?lang=eng&id=21080
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Record is a part of a journal

Title:ACS applied energy materials
Shortened title:ACS app. energy mater.
Publisher:American Chemical Society
ISSN:2574-0962
COBISS.SI-ID:39550725 New window

Document is financed by a project

Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P1-0112
Name:Raziskave atomov, molekul in struktur s fotoni in delci
Funder:ARIS - Slovenian Research and Innovation Agency
Project number:P2-0423
Name:Sodobni akumulatorji kot podpora zelenemu prehodu in elektromobilnosti
Funder:EC - European Commission
Funding programme:HE
Name:European Partnership on Metrology
Funder:Other - Other funder or multiple funders
Project number:21GRD01
Acronym:OpMetBat

Licences

License:CC BY 4.0, Creative Commons Attribution 4.0 International
Link:http://creativecommons.org/licenses/by/4.0/
Description:This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

Language:Slovenian
Keywords:elektrokemija, baterije, akumulatorji, rentgenska emisijska spektrometrija, litij-žveplovi akumulatorji


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