Solid polymer electrolyte membrane, method for manufacturing...

Chemistry: electrical current producing apparatus – product – and – Fuel cell – subcombination thereof – or method of making or... – Fuel cell with solid electrolyte

Reexamination Certificate

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Reexamination Certificate

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07879506

ABSTRACT:
A solid polymer electrolyte membrane that exhibits stable energy generation performance for a long period of time at an operation temperature of about 100° C. to about 300° C. in an unhumidified condition or a relative humidity of about 50%. A method for manufacturing the solid polymer electrolyte membrane and a fuel cell that uses the solid polymer electrolyte membrane are provided. The solid polymer electrolyte membrane comprises a polymer compound that has a side chain that includes a unit represented by Formula (a) that is formed at a heterocyclic nitrogen atom of a polybenzimidazole.

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