Quaternized Polysulfone as a Solid Polymer Electrolyte Membrane with High Ionic Conductivity for All-Solid-State Zn-Air Batteries

Membranes, Journal Year: 2025, Volume and Issue: 15(4), P. 102 - 102

Published: April 1, 2025

Solid polymer electrolytes (SPEs) are gaining attention as viable alternatives to traditional aqueous in zinc–air batteries (ZABs), owing their enhanced performance and stability. In this study, anion-exchange solid (A-SPEs) were synthesized via electrophilic aromatic substitution reactions. Thin films prepared using the solvent casting method characterized proton nuclear magnetic resonance (¹H-NMR), Fourier-transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA). The ion-exchange capacity (IEC), KOH uptake, ionic conductivity, battery also obtained by varying degree of functionalization A-SPEs (30 120%, denoted PSf30/PSf120, respectively). IEC revealed that PSf120 exhibited a higher quantity functional groups, enhancing its hydroxide which reached value 22.19 mS cm−1. addition, demonstrated power density (70 vs. 50 mW cm−2) rechargeability than benchmarked Fumapem FAA-3-50 A-SPE. Postmortem further confirmed lower formation ZnO for PSf120, indicating improved stability reduced passivation zinc electrode. Therefore, type A-SPE could improve all-solid-state ZABs.

Language: Английский

Fast-charging zinc-air battery with thin flexible design enhanced by superabsorbent quasi-solid-state electrolytes

Journal of Power Sources, Journal Year: 2025, Volume and Issue: 649, P. 237416 - 237416

Published: May 27, 2025

Language: Английский