Functional Polymer Materials for High-Performance Aqueous Zinc-Ion Batteries
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Aqueous zinc-ion batteries (AZIBs) are promising for grid-scale energy storage due to their low cost, high safety, and environmental friendliness. However, their practical application is hindered by Zn anode instability. This talk will describe strategies for designing high-energy-density AZIBs using functional polymer materials. First, I will discuss functional polymer-based surface protective layers with suitable chemical characteristics and near single-ion transportability, effectively guiding the preferential deposition of Zn2+ in the (002) orientation rather than forming dendrites while simultaneously suppressing side reactions. We will also discuss designing thick cathodes using hydrophilic polymer binders that facilitate Zn2+ ion conduction and provide strong adhesion, enabling the preparation of thick cathodes. Finally, we will discuss future outlooks for the pursuit of commercial-grade AZIB.