Composite electrolyte membrane having imido-network polymer...

H - Electricity – 01 – M

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H01M 8/02 (2006.01) C08J 5/22 (2006.01) H01B 1/06 (2006.01) H01B 13/00 (2006.01) H01M 8/10 (2006.01)

Patent

CA 2646797

Compositing is carried out using an imide network polymer as a high-density electrolyte material (1) to enhance the strength and improve the durability, (2) to realize a larger area, and (3) to facilitate handling in the synthesis of a membrane, whereby a composite electrolyte membrane having a high level of ion conductivity can be formed and, further, the composite electrolyte membrane can be applied to a solid polymer electrolyte fuel cell to realize a high-performance fuel cell. The above advantages can be attained by improving the degree of filling of the imide network polymer into the porous membrane.

Selon la présente invention, on réalise une composition en utilisant un polyimide réticulé en tant que matériau d'électrolyte haute densité (1) pour augmenter la résistance et améliorer la longévité, (2) pour former une plus grande surface spécifique, et (3) pour faciliter la manipulation dans la synthèse d'une membrane, moyennant quoi une membrane d'électrolyte composite ayant un niveau élevé de conductivité ionique peut être formée et, en outre, la membrane d'électrolyte composite peut être appliquée à une pile à combustible à électrolyte polymère solide pour réaliser une pile à combustible à rendement élevé. Les avantages ci-dessus peuvent être obtenus en améliorant le degré de remplissage du polyimide réticulé dans la membrane poreuse.

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