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US 6,670,065 B2Granted
Solid polymer electrolyte, a membrane using thereof, a solution for coating electrode catalyst, a membrane/electrode assembly, and a fuel cell
AssigneeHitachi, Ltd.
InventorsToru Koyama, Toshiyuki Kobayashi, Kenji Yamaga, Tomoichi Kamo, Kazutoshi Higashiyama
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Abstract
A solid polymer electrolyte is made up of a polymer compound having a hydrocarbon aromatic group in the backbone thereof and including a side chain expressed by FORMULA 1: [Parenopenst]CH2[Parenclosest]hSO3H FORMULA 1 wherein “n” is 1, 2, 3, 4, 5, or 6. The solid polymer electrolyte may be incorporated into a membrane and may be used in a solution for covering an electrode catalyst.
Claims12
A solid polymer electrolyte comprising a polymer compound having a hydrocarbon aromatic group in the backbone thereof and including a side chain expressed by FORMULA 1:
- wherein “n” is 1, 2, 3, 4, 5, or 6.
Dependencies are inferred from the claim text.