Ion exchange membrane material "Sulfonated Polyether Sulfone (S-PES)"
Our "Sulfone-Polyether Sulfone (S-PES)" exhibits high proton selectivity for RFB electrolyte membrane applications.
Vanadium-based redox flow batteries (RFB) are expected to be promising as large secondary batteries due to their excellent charge-discharge cycle durability and safety. Currently, the electrolyte membrane material commonly used is perfluorocarbon sulfonic acid polymer, but its high cost is considered to hinder widespread practical application. Therefore, hydrocarbon-based materials with sulfonic acid groups introduced into aromatic polymers are being investigated. Our company has produced a dense membrane of S-PES and evaluated its performance as an electrolyte membrane for RFBs. As a result, the membrane durability was found to be as strong as that of perfluorocarbon membranes, and the crossover (proton selectivity) showed approximately five times better results compared to perfluorocarbon membranes. *For more details, please refer to the PDF document or feel free to contact us.*
- Company：小西化学工業
- Price：Other
