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@ARTICLE{Deng:909038,
author = {Deng, Zeyu and Mishra, Tara P. and Mahayoni, Eunike and Ma,
Qianli and Tieu, Aaron Jue Kang and Guillon, Olivier and
Chotard, Jean-Noël and Seznec, Vincent and Cheetham,
Anthony K. and Masquelier, Christian and Gautam,
Gopalakrishnan Sai and Canepa, Pieremanuele},
title = {{F}undamental investigations on the sodium-ion transport
properties of mixed polyanion solid-state battery
electrolytes},
journal = {Nature Communications},
volume = {13},
number = {1},
issn = {2041-1723},
address = {[London]},
publisher = {Nature Publishing Group UK},
reportid = {FZJ-2022-02976},
pages = {4470},
year = {2022},
abstract = {Lithium and sodium (Na) mixed polyanion solid electrolytes
for all-solid-statebatteries display some of the highest
ionic conductivities reported to date.However, the effect of
polyanion mixing on the ion-transport properties is stillnot
fully understood. Here,we focus onNa1+xZr2SixP3−xO12 (0
≤ x ≤ 3) NASICONelectrolyte to elucidate the role of
polyanion mixing on the Na-ion transportproperties. Although
NASICON is a widely investigated system, transportproperties
derived from experiments or theory vary by orders of
magnitude.We use more than 2000 distinct ab initio-based
kinetic Monte Carlo simulationsto map the compositional
space of NASICON over various time ranges,spatial
resolutions and temperatures. Via electrochemical impedance
spectroscopymeasurements on samples with different sodium
content, we findthat the highest ionic conductivity (i.e.,
about 0.165 S cm–1 at 473 K) isexperimentally achieved in
Na3.4Zr2Si2.4P0.6O12, in line with simulations (i.e.,about
0.170 S cm–1 at 473 K). The theoretical studies indicate
that dopedNASICON compounds (especially those with a silicon
content x ≥ 2.4) canimprove the Na-ion mobility compared
to undoped NASICON compositions.},
cin = {IEK-1 / JARA-ENERGY},
ddc = {500},
cid = {I:(DE-Juel1)IEK-1-20101013 / $I:(DE-82)080011_20140620$},
pnm = {1221 - Fundamentals and Materials (POF4-122)},
pid = {G:(DE-HGF)POF4-1221},
typ = {PUB:(DE-HGF)16},
pubmed = {35918385},
UT = {WOS:000836703600023},
doi = {10.1038/s41467-022-32190-7},
url = {https://juser.fz-juelich.de/record/909038},
}