High-stability membrane electrode and preparation method thereof, and water electrolyser applying high-stability membrane electrode

• Main Authors: WANG YING, YIN ZHENGLEI, LIU JINCHENG, PAN QIUREN
• Format: Patent
• Language: Chinese; English
• Published: 25.08.2023
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; METALLURGY

The invention provides a high-stability membrane electrode, a preparation method of the high-stability membrane electrode and a water electrolyser applying the high-stability membrane electrode. The high-stability membrane electrode comprises an anode gas diffusion layer, an anode catalyst layer, an anion exchange membrane, a cathode catalyst layer and a cathode gas diffusion layer which are sequentially stacked, wherein the anode catalyst layer is prepared by the following steps: S1, mixing a nickel ferrite catalyst, polytetrafluoroethylene, an anion exchange membrane ionomer and a solvent, and uniformly stirring to prepare nickel ferrite catalyst slurry; and S2, coating the anode gas diffusion layer with the nickel ferrite catalyst slurry, performing drying to obtain a membrane electrode intermediate, placing the membrane electrode intermediate in inert gas, and performing heat preservation at the heat preservation temperature of 300-500 DEG C for 5-60 minutes to obtain an anode catalyst layer. The membrane