Challenges in XPS Analysis of PEO-LiTFSI-based Solid Electrolytes:How to Overcome X-ray-Induced Photodecomposition

dc.contributor.authorYusim, Yuriy
dc.contributor.authorMoryson, Yannik
dc.contributor.authorSeipp, Kevin
dc.contributor.authorSann, Joachim
dc.contributor.authorHenss, Anja
dc.date.accessioned2024-11-26T09:37:47Z
dc.date.available2024-11-26T09:37:47Z
dc.date.issued2024
dc.description.abstractThe cycle life of poly(ethylene oxide) (PEO) batteries containing lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) is hindered by interfacial (electro)chemical electrolyte decomposition, a process traditionally examined via X-ray photoelectron spectroscopy (XPS). Our research presents a critical examination of X-ray induced photodecomposition, commonly misinterpreted as (electro)chemical electrolyte decomposition, in PEO-LiTFSI systems and those with NCM cathodes. We provide novel insights into this X-ray induced photodecomposition process and show that it is particularly pronounced when LiTFSI is dissolved and not in its pure state. Most importantly, we reveal that cryogenic measurement conditions can almost completely mitigate this photodecomposition. This insight not only deepens the understanding of photodecomposition within XPS analyses but also provides a transformative approach to the accurate characterization of electrolyte materials in lithium batteries.en
dc.identifier.urihttps://jlupub.ub.uni-giessen.de/handle/jlupub/19912
dc.identifier.urihttps://doi.org/10.22029/jlupub-19267
dc.language.isoen
dc.rightsNamensnennung - Nicht kommerziell - Keine Bearbeitungen 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subject.ddcddc:540
dc.titleChallenges in XPS Analysis of PEO-LiTFSI-based Solid Electrolytes:How to Overcome X-ray-Induced Photodecomposition
dc.typearticle
local.affiliationFB 08 - Biologie und Chemie
local.source.articlenumbere202400161
local.source.journaltitleBatteries & supercaps
local.source.number10
local.source.urihttps://doi.org/10.1002/batt.202400161
local.source.volume7

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