Composite ion exchange membrane and electrolyte membrane electrode assembly

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United States of America Patent

PATENT NO 7537852
APP PUB NO 20050095486A1





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The present invention provides a composite ion exchange membrane which has high mechanical strength and is suitable for use as a solid polymer electrolyte membrane excellent in ionic conductivity and a method for its production. The invention is achieved by a composite ion exchange membrane including a composite layer comprising a support membrane with continuous voids formed of polybenzazole polymer, the support membrane being impregnated with ion exchange resin, and surface layers formed of ion exchange resin free of support membranes, the surface layers being formed on both surfaces of the composite layer so as to sandwich the composite layer therebetween.

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Inventor Name Address # of filed Patents Total Citations
Hamamoto, Shiro Otsu, JP 11 123
Kitamura, Kota Otsu, JP 18 313
Nagahara, Shigenori Otsu, JP 7 109
Nakao, Junko Otsu, JP 3 67
Sakaguchi, Yoshimitsu Otsu, JP 15 192
Sasai, Kousuke Otsu, JP 4 64
Takase, Satoshi Otsu, JP 17 473

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