001034990 001__ 1034990 001034990 005__ 20250610131445.0 001034990 0247_ $$2doi$$a10.1002/aenm.202404569 001034990 0247_ $$2ISSN$$a1614-6832 001034990 0247_ $$2ISSN$$a1614-6840 001034990 0247_ $$2datacite_doi$$a10.34734/FZJ-2025-00096 001034990 0247_ $$2WOS$$aWOS:001385287700001 001034990 037__ $$aFZJ-2025-00096 001034990 082__ $$a050 001034990 1001_ $$0P:(DE-Juel1)199048$$aWang, Jian-Fen$$b0$$ufzj 001034990 245__ $$aMolecular Insights into the Interfacial Phenomena at the Li Metal | Polymer Solid‐State Electrolyte in Anode‐Free Configuration During Li Plating‐Stripping via Advanced Operando ATR‐FTIR Spectroscopy 001034990 260__ $$aWeinheim$$bWiley-VCH$$c2025 001034990 3367_ $$2DRIVER$$aarticle 001034990 3367_ $$2DataCite$$aOutput Types/Journal article 001034990 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article$$bjournal$$mjournal$$s1749210128_30448 001034990 3367_ $$2BibTeX$$aARTICLE 001034990 3367_ $$2ORCID$$aJOURNAL_ARTICLE 001034990 3367_ $$00$$2EndNote$$aJournal Article 001034990 500__ $$aGerman Federal Ministry for Education and Research within the project “EFoBatt” (grant number 13XP5129) 001034990 520__ $$aSolid-state batteries are regarded as safe and high-energy-density candidates for next-generation energy storage. However, gaining a mechanistic understanding of the interfacial phenomena under real electrochemically working conditions remains a major challenge for cells containing solid-state electrolytes. This work presents an in-house built attenuated total reflection fourier-transform infrared (ATR-FTIR) spectroscopy cell equipped with an internal temperature-control unit. This cell is used for operando characterization of interfacial processes between plated Li and polymer during Li plating/stripping. As a proof of concept, a polymer electrolyte (cr-PEO10LiTFSI) containing poly(ethylene oxide), Li bis-(trifluoromethanesulfonyl)imide and crosslink-initiator benzophenone (BP) is introduced on a copper mesh as current collector at 60 °C. The developed ATR-FTIR spectroscopy setup provides detailed insights into the electrolyte degradation and reveals the crystallinity transformation of PEO at the interface during plating. Moreover, for the first time, the degradation of BP is observed. This compound, often overlooked in electrolyte systems due to its low concentration, is found to play a significant role in the interfacial electrochemistry process. Overall, this study provides a comprehensive overview of the characterization on the PEO electrolyte-lithium metal interface and introduces a novel perspective on the reaction of BP as a crosslinking initiator in the solid-state batteries. 001034990 536__ $$0G:(DE-HGF)POF4-1221$$a1221 - Fundamentals and Materials (POF4-122)$$cPOF4-122$$fPOF IV$$x0 001034990 588__ $$aDataset connected to DataCite 001034990 7001_ $$0P:(DE-Juel1)190810$$aWeiling, Matthias$$b1 001034990 7001_ $$0P:(DE-Juel1)188450$$aPfeiffer, Felix$$b2 001034990 7001_ $$0P:(DE-Juel1)178047$$aLiu, Kun-Ling$$b3 001034990 7001_ $$00000-0002-2754-6623$$aBaghernejad, Masoud$$b4$$eCorresponding author 001034990 773__ $$0PERI:(DE-600)2594556-7$$a10.1002/aenm.202404569$$gp. 2404569$$n8$$p2404569$$tAdvanced energy materials$$v15$$x1614-6832$$y2025 001034990 8564_ $$uhttps://juser.fz-juelich.de/record/1034990/files/Advanced%20Energy%20Materials%20-%202025%20-%20Wang%20-%20Molecular%20Insights%20into%20the%20Interfacial%20Phenomena%20at%20the%20Li%20Metal%20Polymer.pdf$$yOpenAccess 001034990 8767_ $$d2025-01-06$$eHybrid-OA$$jDEAL 001034990 909CO $$ooai:juser.fz-juelich.de:1034990$$pdnbdelivery$$popenCost$$pVDB$$pdriver$$pOpenAPC_DEAL$$popen_access$$popenaire 001034990 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)199048$$aForschungszentrum Jülich$$b0$$kFZJ 001034990 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)190810$$aForschungszentrum Jülich$$b1$$kFZJ 001034990 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)188450$$aForschungszentrum Jülich$$b2$$kFZJ 001034990 9131_ $$0G:(DE-HGF)POF4-122$$1G:(DE-HGF)POF4-120$$2G:(DE-HGF)POF4-100$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-1221$$aDE-HGF$$bForschungsbereich Energie$$lMaterialien und Technologien für die Energiewende (MTET)$$vElektrochemische Energiespeicherung$$x0 001034990 9141_ $$y2025 001034990 915pc $$0PC:(DE-HGF)0000$$2APC$$aAPC keys set 001034990 915pc $$0PC:(DE-HGF)0120$$2APC$$aDEAL: Wiley 2019 001034990 915__ $$0StatID:(DE-HGF)0150$$2StatID$$aDBCoverage$$bWeb of Science Core Collection$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)0160$$2StatID$$aDBCoverage$$bEssential Science Indicators$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)1160$$2StatID$$aDBCoverage$$bCurrent Contents - Engineering, Computing and Technology$$d2023-10-26 001034990 915__ $$0LIC:(DE-HGF)CCBY4$$2HGFVOC$$aCreative Commons Attribution CC BY 4.0 001034990 915__ $$0StatID:(DE-HGF)0600$$2StatID$$aDBCoverage$$bEbsco Academic Search$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)1150$$2StatID$$aDBCoverage$$bCurrent Contents - Physical, Chemical and Earth Sciences$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)3001$$2StatID$$aDEAL Wiley$$d2023-10-26$$wger 001034990 915__ $$0StatID:(DE-HGF)0200$$2StatID$$aDBCoverage$$bSCOPUS$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)0113$$2StatID$$aWoS$$bScience Citation Index Expanded$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)0510$$2StatID$$aOpenAccess 001034990 915__ $$0StatID:(DE-HGF)0030$$2StatID$$aPeer Review$$bASC$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)0100$$2StatID$$aJCR$$bADV ENERGY MATER : 2022$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)9925$$2StatID$$aIF >= 25$$bADV ENERGY MATER : 2022$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)0300$$2StatID$$aDBCoverage$$bMedline$$d2023-10-26 001034990 915__ $$0StatID:(DE-HGF)0199$$2StatID$$aDBCoverage$$bClarivate Analytics Master Journal List$$d2023-10-26 001034990 9201_ $$0I:(DE-Juel1)IMD-4-20141217$$kIMD-4$$lHelmholtz-Institut Münster Ionenleiter für Energiespeicher$$x0 001034990 980__ $$ajournal 001034990 980__ $$aVDB 001034990 980__ $$aUNRESTRICTED 001034990 980__ $$aI:(DE-Juel1)IMD-4-20141217 001034990 980__ $$aAPC 001034990 9801_ $$aAPC 001034990 9801_ $$aFullTexts