Gradient‐Engineered Separator for Room Temperature Sodium‐Sulfur Batteries: Enabling Effective Polysulfides Conversion and Uniform Sodium Deposition
Room temperature sodium‐sulfur (RT Na‐S) batteries are promising for energy storage, yet suffer from polysulfide shuttling and sodium dendrite issues. Herein, we report a gradient‐engineered separator asymmetrically coated with ZIF‐67 and ZnF2 on a polypropylene membrane to address both interfacial issues. On the catho...