## Abstract **Summary:** Branched/crosslinked sulfonated polyimide membranes incorporating superior mechanical properties, high proton conductivity, and excellent fuel cell performance were successfully developed. The resulting polymer electrolytes displayed conductivity values of about 0.2 SβΒ·βcm^
Sulfonated polyimide hybrid membranes for polymer electrolyte fuel cell applications
β Scribed by Ken-ichi Okamoto; Kazuaki Yaguchi; Hajime Yamamoto; Kangcheng Chen; Nobutaka Endo; Mitsuru Higa; Hidetoshi Kita
- Publisher
- Elsevier Science
- Year
- 2010
- Tongue
- English
- Weight
- 665 KB
- Volume
- 195
- Category
- Article
- ISSN
- 0378-7753
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A new, milder sulfonation process was used to produce ion-exchange polymers from a commercial polysulfone (PSU). Membranes obtained from the sulfonated polysulfone are potential substitutes for perfluorosulfonic acid membranes used now in polymer electrolyte fuel cells. Sulfonation levels from 20 to
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