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@ARTICLE{Taoussi:1041722,
      author       = {Taoussi, S. and Ouaha, A. and Naji, M. and Hoummada, K. and
                      Lahmar, A. and Alami, J. and Manoun, B. and El bouari, A.
                      and Frielinghaus, H. and Bih, L.},
      title        = {{N}ext-generation {L}i1.3+x{A}l0.3{A}sx{T}i1.7-x({PO}4)3
                      {NASICON} electrolytes with outstanding ionic conductivity
                      performance},
      journal      = {Journal of power sources},
      volume       = {644},
      issn         = {0378-7753},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2025-02402},
      pages        = {237103},
      year         = {2025},
      abstract     = {NASICON-type solid electrolytes feature prominently in the
                      improved safety and energy density of solid-state lithium
                      batteries (ASSLBs). Achieving high ionic conductivity in
                      these electrolytes is key to optimizing their performance.
                      In this study, we introduced a new class of NASICON-type
                      materials by doping arsenic into the Li1.3Al0.3Ti1.7(PO4)3
                      framework, creating a series of Li1.3+xAl0.3AsxTi1.7-x(PO4)3
                      phases with varying arsenic content (x = 0, 0.1, 0.2, 0.3),
                      synthesized using the standard solid-state reaction method.
                      X-ray diffraction confirmed the successful formation of the
                      Li1.3+xAl0.3AsxTi1.7-x(PO4)3 phases, which was further
                      validated by Rietveld refinement. Structural analyses
                      through FT-IR, Raman spectroscopy, NMR, and ICP-AES studies
                      validate the effective incorporation of arsenic into the
                      lattice. Among the different compositions,
                      Li1.5As0.2Al0.3Ti1.5(PO4)3 phase stood out due to its high
                      relative density of $89\%$ and its pore-free microstructure,
                      as observed through scanning electron microscopy results,
                      revealing the largest grain and crystallite size. Notably,
                      doping with arsenic resulted in a significant enhancement in
                      ionic conductivity, increasing from 5.34×10-5 Ω-1.cm-1 for
                      Li1.3Al0.3Ti1.7(PO4)3 to 8.57×10-4 Ω-1.cm-1 for the
                      Li1.5As0.2Al0.3Ti1.5(PO4)3 at 25°C. With a lithium
                      transference number of 0.99, and a conduction mechanism
                      largely unaffected by changes in temperature or composition,
                      demonstrating its suitability as a promising candidate for
                      solid electrolyte applications.},
      cin          = {JCNS-FRM-II / JCNS-4 / MLZ},
      ddc          = {620},
      cid          = {I:(DE-Juel1)JCNS-FRM-II-20110218 /
                      I:(DE-Juel1)JCNS-4-20201012 / I:(DE-588b)4597118-3},
      pnm          = {6G4 - Jülich Centre for Neutron Research (JCNS) (FZJ)
                      (POF4-6G4) / 632 - Materials – Quantum, Complex and
                      Functional Materials (POF4-632)},
      pid          = {G:(DE-HGF)POF4-6G4 / G:(DE-HGF)POF4-632},
      experiment   = {EXP:(DE-MLZ)NOSPEC-20140101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001478616300001},
      doi          = {10.1016/j.jpowsour.2025.237103},
      url          = {https://juser.fz-juelich.de/record/1041722},
}