Development of novel polymer electrolyte membranes based on a benzothiadiazole unit†
Abstract
We developed novel hydrocarbon proton exchange membranes based on benzothiadiazole (BT) units. The introduction of even a few BT units effectively suppresses swelling of BT-based membranes. Furthermore, we revealed that the BT unit can provide high proton conductivity along with low activation energy compared to the parent SPES membrane under a wide range of water content conditions.