Partner: Giovanni Bertoni


Recent publications
1.La Monaca A., Girard G., Savoie S., Bertoni G., Krachkovskiy S., Vijh A., Pierini F., Rosei F., Paolella A., Synthesis of electrospun NASICON Li1.5Al0.5Ge1.5(PO4)3 solid electrolyte nanofibers by control of germanium hydrolysis, Journal of The Electrochemical Society, ISSN: 0013-4651, DOI: 10.1149/1945-7111/ac334a, Vol.168, No.11, pp.110512-1-9, 2021
Abstract:

We report the synthesis of ceramic Li1.5Al0.5Ge1.5(PO4)3 (LAGP) nanofibers by combining sol–gel and electrospinning techniques. A homogeneous and stable precursor solution based on chlorides was achieved by controlling Ge hydrolysis. Subsequent electrospinning and heat treatment resulted in highly porous nanostructured NASICON pellets. After a full chemical-physical characterization, various amounts of LAGP nanofibers were used as a filler to develop polyethylene oxide (PEO)-based composite electrolytes. The addition of 10% LAGP nanofibers has allowed doubling the ionic conductivity of the plain polymer electrolyte, by providing longer ion-conductive paths and reducing PEO crystallinity. These findings are promising towards developing solution-based synthesis approaches featuring Ge precursors. In addition, the achieved LAGP nanofibers proved to be a promising nanofiller candidate to develop composite electrolytes for next-generation solid-state batteries.

Affiliations:
La Monaca A.-other affiliation
Girard G.-Lorraine University (FR)
Savoie S.-other affiliation
Bertoni G.-other affiliation
Krachkovskiy S.-other affiliation
Vijh A.-other affiliation
Pierini F.-IPPT PAN
Rosei F.-other affiliation
Paolella A.-other affiliation