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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 |
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