• • Achieves hydroxide conductivity of 160 mS/cm, a 30–50% improvement over conventional poly(aryl piperidine) AEMs (typically 80–120 mS/cm), enabling higher current densities and reduced ohmic losses in electrolyzer stacks.
• • Demonstrates only 0.35% conductivity degradation after 1950 h in 2 M KOH at 80 °C, corresponding to a degradation rate of ~0.00018% h−1, which is an order of magnitude lower than typical AEMs (0.01–0.1% h−1), significantly extending membrane lifetime and reducing replacement costs.
• • MEA performance reaches 2.58 A/cm2 at 1.8 V, comparable to proton exchange membrane water electrolyzers (PEMWEs) but with the advantage of non-precious metal catalysts, potentially lowering capital expenditure by 20–30%.
• • Durability test shows stable operation for over 700 h, with a voltage decay rate of <5 μV/h, indicating robust mechanical and chemical stability under dynamic operation, critical for integration with intermittent renewable energy sources.