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@ARTICLE{Lu:1014693,
      author       = {Lu, Xin and Windmüller, Anna and Schmidt, Dana and
                      Schöner, Sandro and Tsai, Chih-Long and Kungl, Hans and
                      Liao, Xunfan and Chen, Yiwang and Yu, Shicheng and Tempel,
                      Hermann and Eichel, Rüdiger-A.},
      title        = {{L}i-{I}on {C}onductivity of {S}ingle-{S}tep {S}ynthesized
                      {G}lassy-{C}eramic {L}i 10 {G}e{P} 2 {S} 12 and
                      {P}ost-heated {H}ighly {C}rystalline {L}i 10 {G}e{P} 2 {S}
                      12},
      journal      = {ACS applied materials $\&$ interfaces},
      volume       = {15},
      number       = {29},
      issn         = {1944-8244},
      address      = {Washington, DC},
      publisher    = {Soc.},
      reportid     = {FZJ-2023-03398},
      pages        = {34973 - 34982},
      year         = {2023},
      abstract     = {Li10GeP2S12 is a phosphosulfide solid electrolyte that
                      exhibits exceptionally high Li-ion conductivity, reaching a
                      conductivity above 10–3 S cm–1 at room temperature,
                      rivaling that of liquid electrolytes. Herein, a method to
                      produce glassy-ceramic Li10GeP2S12 via a single-step
                      utilizing high-energy ball milling was developed and
                      systematically studied. During the high energy milling
                      process, the precursors experience three different stages,
                      namely, the ‘Vitrification zone’ where the precursors
                      undergo homogenization and amorphization, ‘Intermediary
                      zone’ where Li3PS4 and Li4GeS4 are formed, and the
                      ‘Product stage’ where the desired glassy-ceramic
                      Li10GeP2S12 is formed after 520 min of milling. At room
                      temperature, the as-milled sample achieved a high ionic
                      conductivity of 1.07 × 10–3 S cm–1. It was determined
                      via quantitative phase analyses (QPA) of transmission X-ray
                      diffraction results that the as-milled Li10GeP2S12 possessed
                      a high degree of amorphization (44.4 wt $\%).$ To further
                      improve the crystallinity and ionic conductivity of the
                      Li10GeP2S12, heat treatment of the as-milled sample was
                      carried out. The optimal heat-treated Li10GeP2S12 is almost
                      fully crystalline and possesses a room temperature ionic
                      conductivity of 3.27 × 10–3 S cm–1, an over $200\%$
                      increase compared to the glassy-ceramic Li10GeP2S12. These
                      findings help provide previously lacking insights into the
                      controllable preparation of Li10GeP2S12 material.},
      cin          = {IEK-9},
      ddc          = {600},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {1223 - Batteries in Application (POF4-122) / HITEC -
                      Helmholtz Interdisciplinary Doctoral Training in Energy and
                      Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF4-1223 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {37442800},
      UT           = {WOS:001029685700001},
      doi          = {10.1021/acsami.3c05878},
      url          = {https://juser.fz-juelich.de/record/1014693},
}