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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},
}