| 摘要 |
PROBLEM TO BE SOLVED: To provide a high output compact DMFC by maintaining the temperature.SOLUTION: Methanol is supplied to an anode 2 side in a membrane/electrode structure 1 where an anode and a cathod are integrated while sandwiching an electrolyte membrane, and power is generated by causing reaction of protons transmitted the membrane/electrode structure 1 and oxygen on a cathode 3 side. In such a direct methanol fuel cell, a heat insulation layer 6 for infiltrating steam and storing heat is formed on the outer surface side of the cathode 3. Since the heat insulation layer 6 condenses steam produced by oxidation reaction directly, and is heated or kept warm by its latent heat, temperature of DMFC is maintained in a desired operation temperature range, resulting in a high output DMFC in which the output is not reduced over a long time. |
