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US 7,732,077 B2Granted
Polymer electrolyte medium and direct methanol fuel cell
AssigneeKabushiki Kaisha Toshiba
InventorTomoaki Arimura
Life of this patent
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Abstract
According to one embodiment, a polymer electrolyte medium is represented by the following general formula (I) where R is sulfonic acid or phosphoric acid, and n is an integer from 1 to 8000.
Claims5
A polymer electrolyte medium represented by the following general formula (I):
- where R is sulfonic acid or phosphoric acid, and n is an integer from 50 to 8000.
A direct methanol fuel cell comprising a single cell including an anode to which an aqueous methanol solution is supplied, a cathode to which an oxidizer is supplied, and a polymer electrolyte medium interposed between the anode and the cathode,
- wherein the polymer electrolyte medium is represented by the following general formula (I):
- where R is sulfonic acid or phosphoric acid, and n is an integer from 1 to 8000.
Dependencies are inferred from the claim text.