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@ARTICLE{Taoussi:1041723,
      author       = {Taoussi, S. and Ouaha, A. and Naji, M. and Hoummada, K. and
                      Lahmar, A. and Manoun, B. and El Bouari, A. and
                      Frielinghaus, H. and Zhang, Y. and Bih, L.},
      title        = {{NASICON} {A}s-doped and glass additive dual strategy for
                      novel {NASICON}-glass composite with superior ionic
                      conductivity},
      journal      = {Journal of energy storage},
      volume       = {124},
      issn         = {2352-152X},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2025-02403},
      pages        = {116933},
      year         = {2025},
      abstract     = {Due to their desirable properties, NASICON-type LATP
                      materials are considered strong candidates for use as
                      solid-state electrolytes in lithium batteries. However,
                      their ionic conductivity, essential for optimal battery
                      performance, remains lower than liquid electrolytes. This
                      study highlights the effectiveness of a dual-strategy
                      approach to improve LATP NASICON materials' ionic
                      conductivity. By substituting titanium with arsenic, we
                      developed a high-ion-conducting phase,
                      Li1.5Al0.3As0.2Ti1.5(PO4)3, which showed significant
                      advancements, achieving a high relative density of $89\%$
                      and an average grain size of 51 nm, which contributes to its
                      improved performance. These modifications led to a
                      significant boost in the ionic conductivity of the
                      arsenic-doped LATP phase, which rose from
                      5.34 × 10-5 S.cm-1 for LATP to
                      8.57 × 10-4 S.cm-1 for the Li1.5Al0.3As0.2Ti1.5(PO4)3
                      phase at room temperature with an activation energy of 0.30
                      eV and a transference number close to 1. To address
                      remaining porosity and grain boundary resistance, we
                      developed a novel glass-ceramic composition by incorporating
                      a high-ion-conducting glass additive
                      (45Li2O-10Li2WO4-45P2O5) into the new elaborated
                      Li1.5Al0.3As0.2Ti1.5(PO4)3 matrix. The addition of 3 $wt.\%$
                      glass content notably enhanced the density and compactness
                      of the material, increasing its ionic conductivity to 4.6 ×
                      10-3 S. cm-1 at 25 °C with an activation energy of 0.25 eV,
                      representing the highest ionic conductivity reported for
                      NASICON and NASICON-composite materials. This work provides
                      a cost-effective and efficient method for producing novel
                      NASICON ceramics and glass-ceramic composites with superior
                      ionic conductivity, setting a new benchmark for
                      NASICON-composite materials and advancing the development of
                      high-performance solid-state electrolytes for lithium
                      batteries.},
      cin          = {JCNS-FRM-II / JCNS-4 / MLZ},
      ddc          = {333.7},
      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:001487119500001},
      doi          = {10.1016/j.est.2025.116933},
      url          = {https://juser.fz-juelich.de/record/1041723},
}