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@ARTICLE{Hehn:632939,
      author       = {Hehn, Jonas and Rodenburg, Hendrik P. and Lazemi, Masoud
                      and Verschoor, Juliette and Perich, Marta Perxés and
                      Sundermann, Martin and Gretarsson, Hlynur and van der
                      Hoeven, Jessi E. S. and de Groot, Frank and de Jongh, Petra
                      and Ngene, Peter},
      title        = {{E}nhanced {I}onic {C}onductivity and {E}lectrochemical
                      {P}roperties of {L}i$_2${B}$_{12}${H}$_{12}$/{Z}r{O}$_2$
                      {N}anocomposites for {A}ll-{S}olid-{S}tate {L}ithium {M}etal
                      {B}atteries},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {17},
      number       = {23},
      issn         = {1944-8244},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {PUBDB-2025-02267},
      pages        = {33824 – 33833},
      year         = {2025},
      abstract     = {Solid-state electrolytes play a key role in the development
                      of safe and high-capacity all-solid-state batteries. Complex
                      hydrides such as Li$_2$B$_{12}$H$_{12}$ are attractive as
                      solid electrolytes due to their low weight and good
                      electrochemical stability, but suffer from low
                      conductivities at room temperature. Herein, we report a
                      three-order-magnitude increase in the ionic conductivity of
                      Li$_2$B$_{12}$H$_{12}$ upon nanocomposite formation with
                      ZrO$_2$ via mechanochemical treatment, reaching 2.9 ×
                      10$^{–4}$ S cm$^{–1}$ at 30 °C. Results from infrared
                      spectroscopy, X-ray Raman scattering and electron microscopy
                      coupled with electron energy loss spectroscopy suggest that
                      the increased ionic conductivity is due to strong
                      interfacial interaction/reaction between
                      Li$_2$B$_{12}$H$_{12}$ and ZrO$_2$. This leads to a highly
                      defective interphase region where the Li, B, Zr, and O
                      chemical environments are distinctively different from the
                      bulk Li$_2$B$_{12}$H$_{12}$ and ZrO$_2$. The improved ionic
                      conductivity of the nanocomposite compared to the pristine
                      material enabled the realization of all-solid-state
                      batteries with a Li metal anode and both TiS$_2$ and
                      LiFePO$_4$ cathodes. We demonstrate the suitability of the
                      nanocomposite at various charging rates up to C/2 (0.34 mA
                      cm$^{–2}$) for over 170 cycles at 40–60 °C
                      (Li|Li$_2$B$_{12}$H$_{12}$/ZrO2|TiS$_2$).},
      cin          = {DOOR ; HAS-User / FS-PETRA-S},
      ddc          = {600},
      cid          = {I:(DE-H253)HAS-User-20120731 /
                      I:(DE-H253)FS-PETRA-S-20210408},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      SMART-X - Study of carrier transport in MAterials by
                      time-Resolved specTroscopy with ultrashort soft X-ray light
                      (860553)},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      G:(EU-Grant)860553},
      experiment   = {EXP:(DE-H253)P-P01-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1021/acsami.5c01939},
      url          = {https://bib-pubdb1.desy.de/record/632939},
}