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@ARTICLE{Wang:1034990,
      author       = {Wang, Jian-Fen and Weiling, Matthias and Pfeiffer, Felix
                      and Liu, Kun-Ling and Baghernejad, Masoud},
      title        = {{M}olecular {I}nsights into the {I}nterfacial {P}henomena
                      at the {L}i {M}etal | {P}olymer {S}olid‐{S}tate
                      {E}lectrolyte in {A}node‐{F}ree {C}onfiguration {D}uring
                      {L}i {P}lating‐{S}tripping via {A}dvanced {O}perando
                      {ATR}‐{FTIR} {S}pectroscopy},
      journal      = {Advanced energy materials},
      volume       = {15},
      number       = {8},
      issn         = {1614-6832},
      address      = {Weinheim},
      publisher    = {Wiley-VCH},
      reportid     = {FZJ-2025-00096},
      pages        = {2404569},
      year         = {2025},
      note         = {German Federal Ministry for Education and Research within
                      the project “EFoBatt” (grant number 13XP5129)},
      abstract     = {Solid-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.},
      cin          = {IMD-4},
      ddc          = {050},
      cid          = {I:(DE-Juel1)IMD-4-20141217},
      pnm          = {1221 - Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001385287700001},
      doi          = {10.1002/aenm.202404569},
      url          = {https://juser.fz-juelich.de/record/1034990},
}