A flexible, ceramic-rich solid electrolyte for room-temperature sodium–sulfur batteries
2022
Hegde, Guruprasad S. | Sundara, Ramaprabhu
A sodium superionic conductor, Na₃Zr₂Si₂PO₁₂ (NZSP) ceramic, is a promising solid electrolyte (SE) and holds the potential to solve the safety and energy density problems of several sodium-based batteries. In particular, in room temperature sodium–sulfur (RT Na/S) batteries, the use of SEs can solve polysulfide shuttle effects. A significant challenge in the commercialization of NZSP is producing the ceramic in a thin and flexible form. Herein, we report a method to produce a thin (<250 μm thickness) and flexible “polymer in ceramic” type sodium ion conductor film from the erstwhile brittle ceramic film and demonstrate its application in RT Na/S batteries.
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