Physicochemical characterization of fluoride solid electrolyte PbSnF4 synthesized via sonochemical reaction
Fluoride ion conductor; Ionic conductivity; Ionic transference number; Solid electrolyte; Sonochemical technique
Demand for batteries with enhanced energy density and improved thermal safety is a key focus for researchers striving to build a sustainable environment. As fluoride ion batteries (FIB) are expected to exhibit high energy density and exceptional thermal stability, research activities are focused on identifying fluoride ion-conducting electrolytes. Among the various fluoride ion conductors, PbSnF4, renowned for its superior ionic conductivity, is typically synthesized via mechanochemical reaction. In the present work, PbSnF4 was synthesized via an acoustic cavitation-driven sonochemical reaction. This novel synthesis route has reduced the duration of the synthesis process to a few minutes compared with several hours for the mechanochemical reaction. The structural, morphological, and ionic transport properties are investigated. The ionic conductivity of the resulting orthorhombic PbSnF4 is evaluated to be 4.5 10?4 S/cm at RT. The contribution of fluoride ions to the total ionic conductivity is estimated via the DC polarization technique as 0.92. The electrochemical stability window (ESW) is measured through cyclic voltammetry (CV) as 0.7 V with PbF2/PbSnF4/SS cell configuration. 2025
M, Meena; Money, Benson K; Bhide, Amrtha
Journal of Fluorine Chemistry;Volume;285-286;Issue;;Article No.;110450;
Restricted Access; Hardcopy may be available in the library
https://doi.org/10.1016/j.jfluchem.2025.110450 https://www.scopus.com/pages/publications/105009295702?origin=resultslist
M M., Department of Physics, National Institute of Technology Puducherry, Karaikal, 609609, India; Money B.K., School of Engineering and Technology, Christ (Deemed to be University), Bangalore, 560074, India; Bhide A., Department of Physics, National Institute of Technology Puducherry, Karaikal, 609609, India