Properties of ab-PBI Membranes for Fuel Cells
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- UCHIDA Hiroyuki
- Graduate School of Engineering, University of Yamanashi
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- YAMADA Yoshifumi
- Clean Energy Research Center, University of Yamanashi
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- ASANO Naoki
- Clean Energy Research Center, University of Yamanashi
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- WATANABE Masahiro
- Clean Energy Research Center, University of Yamanashi
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- LITT Morton
- Department of Macromolecular Science, Case Western Reserve University
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Abstract
<p>Poly(2,5-benzimidazole) (ab-PBI) membranes were characterized for use as electrolytes in fuel cells operating at elevated temperatures (100 to 200°C). The conductivity of phosphoric acid-doped ab-PBI was as high as 0.12 S cm−1 at temperatures below 120°C, but it decreased to 0.025 S cm−1 above 150°C due to a dehydration of the doped acid. Using the H3PO4-doped ab-PBI, H2/O2 fuel cell could be operated at 120°C with a low humidification of reactant gases, although it was necessary to keep the acid-doping level high in both the membrane and the electrodes.</p>
Journal
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- Electrochemistry
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Electrochemistry 70 (12), 943-945, 2002-12-05
The Electrochemical Society of Japan
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Details 詳細情報について
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- CRID
- 1390845702278403712
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- NII Article ID
- 10010387711
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- NII Book ID
- AN00151637
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- ISSN
- 21862451
- 13443542
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- NDL BIB ID
- 6376823
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Allowed
