✦ LIBER ✦

Branched/Crosslinked Sulfonated Polyimide Membranes for Polymer Electrolyte Fuel Cells

✍ Scribed by Yan Yin; Shunsuke Hayashi; Otoo Yamada; Hidetoshi Kita; Ken-Ichi Okamoto

Publisher: John Wiley and Sons
Year: 2005
Tongue: English
Weight: 156 KB
Volume: 26
Category: Article
ISSN: 1022-1336
DOI: 10.1002/marc.200500014

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✦ Synopsis

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 S · cm^−1^ at 120 °C and 100% relative humidity. In a single H~2~/O~2~ fuel cell system at 90 °C, they exhibited reasonably high fuel cell performances comparable to that of Nafion 112.

The structure of the branched/crosslinked sulfonated polyimide membranes studied here.

imageThe structure of the branched/crosslinked sulfonated polyimide membranes studied here.

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