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@INPROCEEDINGS{Ferraresi:834447,
      author       = {Ferraresi, Giulio and Kazzi, Mario El and Tsai, Chih-Long
                      and Uhlenbruck, Sven and Novák, Petr and Villevieille,
                      Claire},
      title        = {{A}lloy-based electrodes for all-solid-state {L}i-ion
                      batteries based on garnet {T}a-substituted
                      {L}i7{L}a3{Z}r2{O}12 solid electrolyte},
      reportid     = {FZJ-2017-04403},
      year         = {2017},
      abstract     = {Since the dawn of Li-ion batteries, consumers have always
                      been concerned about the safety of the electronic devices.
                      Recent accidents (Samsung S7 Galaxy Note and Boeing 787
                      Dreamliner aircraft) have pushed to look for alternatives to
                      liquid electrolytes considered to be the main risk for the
                      low safety of the battery. Solid electrolytes are envisaged
                      as alternative of organic liquid electrolytes since they
                      promise to improve safety at both room and elevated
                      temperatures. Among the already discovered inorganic Li-ion
                      conductors, the garnet material with a cubic structure,
                      Li7La3Zr2O12 (LLZO), offers both acceptable ionic
                      conductivity at room temperature and chemical stability in
                      contact with Li metal.1Generally, such solid electrolyte is
                      often investigated in half-cells (vs. Li metal) coupled to
                      oxide materials such as Li4Ti5O12 or LiCoO2 as negative and
                      positive electrode, respectively. Although the garnet solid
                      electrolyte (LLZO) was considered to be stable in the
                      potential range from zero to six volt vs. Li/Li+, recent
                      studies point out that the stability window could be
                      drastically limited down to 2.9 V.2We investigated the
                      electrochemical performance of alloy-based (Sn, Si)
                      nanoparticles as electrode using a Ta-doped LLZO pellet as
                      solid electrolyte to build all-solid-state Li half-cells.
                      Alloy materials are known to be electrochemically active in
                      the range 0-1.5 V vs. Li/Li+, thus, within the stability
                      window of LLZO. The electrodes, prepared as either
                      conventional slurry mixture, thin films or spray-coating and
                      directly deposited on the surface of the electrolyte pellet,
                      show reversible electrochemical activity comparable to the
                      liquid counterpart except the possible absence of a solid
                      electrolyte interphase (SEI). For the first time, we discuss
                      the possibility to lithiate/delithiate reversibly
                      alloy-based nanoparticles in combination with the garnet
                      LLZO electrolyte and their interfacial stability. Such
                      investigation is supported by electrochemical
                      characterization coupled with surface and structural
                      characterization (XPS, SEM and XRD).},
      month         = {Jun},
      date          = {2017-06-18},
      organization  = {21st International Conference on Solid
                       State Ionics, Padua (Italy), 18 Jun
                       2017 - 23 Jun 2017},
      subtyp        = {Outreach},
      cin          = {IEK-1},
      cid          = {I:(DE-Juel1)IEK-1-20101013},
      pnm          = {131 - Electrochemical Storage (POF3-131)},
      pid          = {G:(DE-HGF)POF3-131},
      typ          = {PUB:(DE-HGF)24},
      url          = {https://juser.fz-juelich.de/record/834447},
}