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@ARTICLE{Ihrig:891126,
      author       = {Ihrig, Martin and Finsterbusch, Martin and Tsai, Chih-Long
                      and Laptev, Alexander and Tu, Chia-hao and Bram, Martin and
                      Sohn, Yoo Jung and Ye, Ruijie and Sevinc, Serkan and Lin,
                      Shih-kang and Fattakhova-Rohlfing, Dina and Guillon,
                      Olivier},
      title        = {{L}ow temperature sintering of fully inorganic
                      all-solid-state batteries – {I}mpact of interfaces on full
                      cell performance},
      journal      = {Journal of power sources},
      volume       = {482},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2021-01378},
      pages        = {228905},
      year         = {2021},
      abstract     = {One of the necessary prerequisites to advance the
                      electrochemical performance of Li7La3Zr2O12 (LLZ) based
                      all-solid-state lithium batteries is the manufacturing of
                      dense composite cathodes from cathode active material (CAM)
                      and the LLZ ceramic solid electrolyte. However, free
                      co-sintering of LLZ and CAM mixtures requires temperatures
                      above 1000 °C which often leads to decomposition and
                      secondary phase formation, especially for high energy CAMs.
                      In our study we present a completely dry processing route
                      which is fast, free of any sintering additives and coatings
                      and suitable to fabricate dense mixed cathodes, pure LLZ
                      separators and multilayers of the two. Through application
                      of high mechanical pressure during Field-Assisted Sintering
                      we were able to reduce the sintering temperature down to
                      675–750 °C with dwell times as low as 10 min, while still
                      obtaining $95\%$ theoretical density for LCO/LLZ mixtures.
                      The low sintering temperature is suitable for high energy
                      CAMs, but leads to a significant effect of surface
                      impurities, especially from powder handling in air, and
                      affects the crystallinity of the CAM/LLZ interface. In the
                      present paper we investigate the impact of resulting
                      interfaces on the ionic conductivity, the interfacial
                      impedance and the cycling stability of produced cells and
                      propose the optimization strategy.},
      cin          = {IEK-1 / JARA-ENERGY},
      ddc          = {620},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {122 - Elektrochemische Energiespeicherung (POF4-122)},
      pid          = {G:(DE-HGF)POF4-122},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000597272900007},
      doi          = {10.1016/j.jpowsour.2020.228905},
      url          = {https://juser.fz-juelich.de/record/891126},
}