A sodium superionic chloride electrolyte driven by paddle wheel mechanism for solid state batteries.

ABSTRACT: Halides are promising solid electrolytes due to their high ionic conductivity and high oxidation potential. Here we report a superionic chloride material, NaTaCl₆, which exhibits a high ionic conductivity of 3.3 mS cm^-1 at 27 °C, being two-orders of magnitude higher than that of NaNbCl₆ (0.01 mS cm^-1). The considerably higher conductivity exhibited by NaTaCl₆ vs. NaNbCl₆ arises from the more facile rotational/reorientational dynamics of the [TaCl₆] polyanions in comparison to the [NbCl₆] anions. [TaCl₆] polyanion rotation is readily activated while [NbCl₆] polyanion reorientation is hindered at room temperature but can be turned on as the temperature increases or under prolonged me

SUBMITTER: Li R 

PROVIDER: S-EPMC12274378 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature