Bifunctional Al Dopant for Enhancing Bulk and Grain Boundary Conductivities in Sodium Ion Conducting NASICON Ceramics
Bowei Xun,
Jian Wang,
Yukio Sato
et al.
Abstract:Compared to Li+ and Na+ ion‐conducting sulfides with conductivities of ≈10⁻2 S cm⁻1 at room temperature, oxide ceramics typically exhibit conductivities an order of magnitude lower, rendering them less attractive as electrolytes for all‐solid‐state batteries (ASSBs). This study presents NASICON‐based electrolyte, achieving a remarkable conductivity of 6.0 × 10⁻3 S cm⁻1 at room temperature, rivaling that of sulfide‐based electrolytes. This is accomplished by optimizing the composition in the range Na3+x+yZr2−yA… Show more
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