| 摘要 |
PURPOSE:To provide a seal structure of a solid high polymer electrolytic fuel battery that does not destruct a solid high polymer electrolytic film due to differential pressure of a reaction gas and a mechanical stress added to the solid high polymer electrolytic film. CONSTITUTION:The area of a solid high polymer electrolytic film 1 is larger than an electrode, while it is gas-sealed between the solid high polymer electrolytic film 1 and a gas impermeable plate 4 by a gas seal material 5 by which the electrode is enveloped like an architrave. In this structure, an architrave-like protective film 11, which is arranged airtight on the peripheral part of the solid high polymer electrolytic film 1, and which has a superimposed part on the electrode, is provided at least on one surface side of the solid high polymer electrolytic film. The protective film 11 is a fluorine resin sheet of no more than 50mum. The solid high polymer electrolytic film 1, the protective film 11, and the electrode are composed of complex films that are preliminarily integrated together by thermocompression process. |
