Ion conductive film and fuel cell using the same
AssigneeKabushiki Kaisha Toshiba
InventorsLois Hobson, Shuji Hayase, Yoshihiko Nakano
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Abstract
Disclosed is an ion conductive film containing a composite body between an ion conductive polymer and a nitrogen-containing compound and a fuel cell including the composite body. The nitrogen-containing compound has an immobilized portion to the ion conductive polymer and exhibits a resonance structure when protonated. The nitrogen-containing compound having a resonance structure when protonated is capable of assuming a chemical structure in which the multiple bond represented by the double bond is moved, with the atoms constituting the molecule not changing their positions.
Claims11
A fuel cell, comprising:
- an electrolytic membrane containing an ion conductive film which is a composite body between an ion conductive polymer and a nitrogen-containing compound, wherein the nitrogen-containing compound has an immobilized portion to said ion conductive polymer and exhibits a resonance structure when protonated, and the molecular weight of said nitrogen-containing compound is not higher than 1,000, the nitrogen-containing compound being selected from the group consisting of guanidino benzimidazole, guanine, guanidine carbonate, purine, diamino purine, histamine, and salts thereof and the ion conductive polymer being a polymer containing a fluorine-containing resin skeleton;
- and
- a fuel electrode and an oxidizing agent electrode having said electrolytic membrane sandwiched therebetween.
Dependencies are inferred from the claim text.