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Dense on Porous Solid LATP Electrolyte System: Preparation and Conductivity Measurement

Duluard, Sandrine Nathalie and Paillassa, Aude and Lenormand, Pascal and Taberna, Pierre-Louis and Simon, Patrice and Rozier, Patrick and Ansart, Florence Dense on Porous Solid LATP Electrolyte System: Preparation and Conductivity Measurement. (2017) Journal of the American Ceramic Society, 100 (1). 141-149. ISSN 0002-7820

(Document in English)

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Official URL: https://doi.org/10.1111/jace.14451


A dense membrane of lithium aluminum titanium phosphate Li1+xAlxTi2-x(PO4)3, x=0.3 (LATP) is deposited on a porous LATP substrate via wet chemistry. In the polymerized complex process, phosphate precursors with different active groups and steric hindrance are selected to tune precursor’s reactivity. Rheological studies and microstructural observations lead to the selection of an LATP powder slurry charged with lithium, aluminum, titanium, and phosphate ion precursors. The optimized formulation is impregnated into a porous LATP substrate. After thermal treatment, dense LATP membranes on top of a porous LATP substrate are obtained with conductivities as high as 3 x 10-4 S/cm for the dense part, the porous part acting as a mechanical support. An original Van der Pauw impedance setup is validated for the measurement of the ionic conductivity of such dense/ porous systems.

Item Type:Article
Additional Information:Thanks to Wiley editor. The definitive version is available at http://onlinelibrary.wiley.com. The original PDF of the article can be found at Journal of the American Ceramic Society website : http://onlinelibrary.wiley.com/doi/10.1111/jace.14451/full
HAL Id:hal-03222358
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Laboratory name:
Deposited On:30 Mar 2017 12:28

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