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@ARTICLE{Dck:893186,
      author       = {Dück, Gerald and Naqash, Sahir and Finsterbusch, Martin
                      and Breuer, Uwe and Guillon, Olivier and
                      Fattakhova-Rohlfing, Dina},
      title        = {{C}o-{S}intering {S}tudy of
                      {N}a$_{0.67}$[{N}i$_{0.1}${F}e$_{0.1}${M}n$_{0.8}$]{O}$_{2}$
                      and {N}a{SICON} {E}lectrolyte–{P}aving the way to {H}igh
                      {E}nergy {D}ensity {A}ll-{S}olid-{S}tate {B}atteries},
      journal      = {Frontiers in energy research},
      volume       = {9},
      issn         = {2296-598X},
      address      = {Lausanne},
      publisher    = {Frontiers Media},
      reportid     = {FZJ-2021-02610},
      pages        = {689416},
      year         = {2021},
      abstract     = {Sodium is a promising candidate for stationary storage
                      applications, especially when the demand for lithium-ion
                      batteries increases due to electromobility applications.
                      Even though its energy density is lower, Na-ion technology
                      is estimated to lead to a cost reduction of $30\%$ compared
                      to Li-ion technology. To improve safety as well as energy
                      density, Na-based all-solid-state-batteries featuring solid
                      electrolytes such as beta-alumina and sodium superionic
                      conductors and cathode materials such as Na3V2(PO4)3 and
                      NaxCoO2 have been developed over the past years. However,
                      the biggest challenge are mixed cathodes with highly
                      conductive interfaces, especially when co-sintering the
                      materials. For example, a promising sodium superionic
                      conductor type Na3Zr2Si2PO12 electrolyte sinters at
                      1,250°C, whereas the corresponding Na3V2PO12 cathode
                      decomposes at temperatures higher than 900°C, posing a
                      bottleneck. Thus in this paper, we synthesized Na0.62
                      [Ni0.10Fe0.10Mn0.80]O2 as cathode material for
                      all-solid-state sodium-ion batteries via a relatively cheap
                      and easy solution-assisted solid state reaction processing
                      route. The thermal investigations of the pure cathode
                      material found no degradation up to 1,260°C, making it a
                      perfect match for Na3.4Zr2Si2.4P0.6O12 electrolyte. In our
                      aim to produce a co-sintered mixed cathode, electron
                      microscopy investigation showed a highly dense
                      microstructure and the elemental mapping performed via
                      energy dispersive X-ray spectroscopy and secondary ion mass
                      spectrometry confirm that Na3.4Zr2Si2.4P0.6O12 and Na0.62
                      [Ni0.10Fe0.10Mn0.80]O2 do not react during sintering.
                      However, the active cathode material forms a sodium rich and
                      a sodium deficient phase which needs further investigation
                      to understand the origin and its impact on the
                      electrochemical performance.},
      cin          = {IEK-1 / JARA-ENERGY},
      ddc          = {333.7},
      cid          = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
      pnm          = {131 - Electrochemical Storage (POF3-131) / 1221 -
                      Fundamentals and Materials (POF4-122)},
      pid          = {G:(DE-HGF)POF3-131 / G:(DE-HGF)POF4-1221},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000663744700001},
      doi          = {10.3389/fenrg.2021.689416},
      url          = {https://juser.fz-juelich.de/record/893186},
}