| 摘要 |
PURPOSE:To largely reduce the weight of a cell by using a separator which comprises a film or sheet formed from synthetic resin and carbon powders, and also providing a methanol supply passage and an air supply passage in the electrode base of a methanol electrode and that of an air electrode, respectively. CONSTITUTION:A separator 4 comprising a flexible and electron conductive film or sheet formed from synthetic resin and carbon powder is used and also a methanol supply passage and an air supply passage are provided in the electrode base of a methanol electrode 1 and that of an air electrode 2, respectively. The above film or sheet is formed as a film or sheet of electrical resistance less than 0.5OMEGAcm<2>, sulfate and methanol resistance, and a methanol transmission coefficient of less than 8X10<-5>mol/cm<2> h(mol/l) under a cell operating temperature condition (about 60 deg.C). The above film or sheet is formed by mixing of carbon powder with polytetrafluoroethylene, polypropylene, polyethylene, vinyl chloride and the like. The thickness of the above film or sheet is from 0.15 to 0.05mm. |
