Characterization of Li-S Batteries Using Laboratory Sulfur X-ray Emission Spectroscopy.
Matjaž Kavčič,Marko Petric,Marko Petric,Ava Rajh,Ava Rajh,Kristina Isaković,Alen Vizintin,Sara Drvarič Talian,Robert Dominko +8 more
- Vol. 4, Iss: 3, pp 2357-2364
TLDR
In this article, MeV proton-induced X-ray emission (XES) measurements were performed in ex situ mode on laboratory-synthesized sulfur standards and precycled battery cathodes.Abstract:
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-Z bulk materials with emission energies in the tender X-ray range.read more
Citations
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Operando Radiography and Multimodal Analysis of Lithium–Sulfur Pouch Cells—Electrolyte Dependent Morphology Evolution at the Cathode
Rafael Müller,Ingo Manke,André Hilger,Nikolay Kardjilov,Tom Boenke,Florian Reuter,Susanne Dörfler,Thomas Abendroth,Paul Härtel,Holger Althues,Stefan Kaskel,Sebastian Risse +11 more
TL;DR: In this article , a multimodal operando investigation of Li/S batteries on a pouch cell level is presented, which provides an inside view of material transformations during battery cycling, using X-ray radiography, electrochemical impedance spectroscopy, and spatially resolved temperature monitoring.
Journal ArticleDOI
Sulfur valence-to-core X-ray emission spectroscopy study of lithium sulfur batteries
Marko Petric,Marko Petric,Ava Rajh,Ava Rajh,Alen Vizintin,Sara Drvarič Talian,Robert Dominko,Matjaž Kavčič,Matjaž Kavčič +8 more
TL;DR: In this article, the authors used the valence-to-core (VtC) Kβ sulfur X-ray emission spectroscopy (XES) to perform quantitative analysis of different sulfur compounds produced in a lithium sulfur (Li-S) battery during discharge.
Journal ArticleDOI
Modeling Nonresonant X-ray Emission of Second- and Third-Period Elements without Core-Hole Reference States and Empirical Parameters.
Bibek Samal,Vamsee K. Voora +1 more
TL;DR: In this article , a scalar relativistic (sr) generalized Kohn-Sham semi-canonical projected random phase approximation (GKS-spRPA) method was proposed to estimate X-ray emission (XE) energies and oscillator strengths.
Journal ArticleDOI
Characterization of Electrochemical Processes in Metal–Organic Batteries by X-ray Raman Spectroscopy
Ava Rajh,Iztok Arčon,Klemen Bučar,Matjaž Žitnik,Marko Petrič,Alen Vizintin,Jan Bitenc,Urban Košir,Robert Dominko,Hlynur Gretarsson,Martin Sundermann,Matjaž Kavčič +11 more
TL;DR: In this article , the authors used X-ray Raman spectroscopy (XRS) to identify and quantify the amount of carbonyl bonds in a cathode sample, in order to track the redox reaction inside metal-organic batteries during charge/discharge cycle.
References
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