Development of PPO-SEBS Anion Exchange Membrane with Robust Mechanical Properties and Alkaline Stability

The anion exchange membrane fuel cell is being studied as an alternative for the cation exchange membrane fuel cell. Since the anion exchange membrane is one of the main components of an anion exchange membrane fuel cell, it is important to develop an anion exchange membrane having high ion conductivity, good mechanical properties, and stability under alkaline conditions. For this, this study attempted to develop AEMs with high physicochemical stability and excellent cell performance by preparing a crosslinked membrane using two polymers of PPO having high strength and SEBS having high elasticity among commercially available polymers. We observed changes in physical and chemical properties by changing the crosslinking density of the two polymers.