Solid polymer type fuel cell

The present invention provides a polymer electrolyte fuel cell, which is inexpensive and has an excellent efficiency of generating electric power, by using a material alternative to a perfluoroalkylene sulfonic acid polymer. The polymer electrolyte fuel cell comprises a pair of electrodes ( 2, 3 ) c...

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Bibliographic Details
Main Authors Asano, Yoichi, Nanaumi, Masaaki, Sohma, Hiroshi, Kanaoka, Nagayuki, Saito, Nobuhiro, Andou, Keisuke, Fukuda, Kaoru, Matsuo, Junji
Format Patent
LanguageEnglish
Published 24.06.2004
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Summary:The present invention provides a polymer electrolyte fuel cell, which is inexpensive and has an excellent efficiency of generating electric power, by using a material alternative to a perfluoroalkylene sulfonic acid polymer. The polymer electrolyte fuel cell comprises a pair of electrodes ( 2, 3 ) consisting of an oxygen electrode ( 2 ) and a fuel electrode ( 3 ) both having a catalyst layer ( 5 ) containing a catalyst and an ion conducting material; and a polymer electrolyte membrane ( 1 ) sandwiched between the two catalyst layers ( 5 ) of the both electrodes ( 2, 3 ). The above ion conducting material contained in the above polymer electrolyte membrane ( 1 ) or in the catalyst ( 5 ) layer of at least one of the above electrodes ( 2, 3 ) comprises a sulfonated polyarylene having sulfonic acid side-chain groups.