Control of ion exchange capacity in block copolymer binders enables high hydroxide conductivity at low swelling and improves catalyst activity for AEM water electrolysis

Key Points

• The aim is to improve hydroxide conductivity and catalyst activity in AEM water electrolysis through tailored polymeric binders.
• Development of block copolymer binders with controlled ion exchange capacity.
• Evaluation of hydroxide conductivity and catalyst performance in AEMWE.
• Achieved significant enhancements in hydroxide conductivity with low swelling of the membrane.
• Observed improved catalyst activity in electrolysis applications.