Partner: René Veillette

Institut de Recherche d'Hydro-Québec (CA)

Recent publications
1.La Monaca A., Girard G., Savoie S., Veillette R., Krachkovskiy S., Pierini F., Vijh A., Rosei F., Paolella A., Influence of TiIV substitution on the properties of a Li1.5Al0.5Ge1.5(PO4)3 nanofiber-based solid electrolyte, NANOSCALE, ISSN: 2040-3364, DOI: 10.1039/D2NR00017B, Vol.14, No.13, pp.5094-5101, 2022
Abstract:

We report the influence of the partial substitution of Ge with Ti on the properties of NASICON Li1.5Al0.5Ge1.5(PO4)3 (LAGP) nanofibers prepared by electrospinning. Replacing a small amount of Ge (up to 20%) with Ti is advantageous for enhancing both the purity and morphology of LAGP fibers, as observed by X-ray diffraction, electron microscopy and nuclear magnetic resonance spectroscopy. When Ti-substituted LAGP (LAGTP) fibers are used as filler to develop composite polymer electrolytes, the ionic conductivity at 20 °C improves by a factor of 1.5 compared to the plain polymer electrolyte. Additionally, above 40 °C the LAGTP fiber-based composite electrolytes were more conductive than the equivalent LAGP fiber-based one. We believe that these findings can make a substantial contribution to optimizing current methods and developing novel synthesis approaches for NASICON based electrolytes.

Affiliations:
La Monaca A.-other affiliation
Girard G.-Lorraine University (FR)
Savoie S.-other affiliation
Veillette R.-Institut de Recherche d'Hydro-Québec (CA)
Krachkovskiy S.-other affiliation
Pierini F.-IPPT PAN
Vijh A.-other affiliation
Rosei F.-other affiliation
Paolella A.-other affiliation