Increasing the ionic conductivity by Fe3+ doping in Li3InCl6 inorganic solid electrolyte
Cation substitution is considered a suitable strategy to increase the conductivity of inorganic halides by introducing local disorder (i.e. vacancy generation, site occupation¿). Nonetheless, more studies are needed to clarify the Li-ion diffusion pathways in the crystalline structure that will optimise the dopants' design . With this in mind, we decided to take a well-known inorganic halide, Li3InCl6 (monoclinic, C2/m) and partially substitute the metal ions with Fe3+, for which an increase in conductivity has been observed. In this context, neutrons are needed to characterize the Li-ions within the crystalline structure, which will complement the studies carried out using synchrotron radiation, to study the Li-ion diffusion pathways. Obtained knowledge can be used as a guide for designing novel inorganic halide electrolytes with better electrochemical performance.
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Oier Pajuelo-Corral; Cañadillas-Delgado, L.; Marcela De Paula Ramos and VILLALUENGA Irune. (2025). Increasing the ionic conductivity by Fe3+ doping in Li3InCl6 inorganic solid electrolyte. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-22-842
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