| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of fixing and holding a three-layer MEA film at the time of jointing an electrode junction to a membrane of a solid polymer fuel cell, in which the prevention of wrinkles due to thermal expansion of each membrane and position slippage during transfer, and the reduction of treatment time or the like is achieved, and a jointing method. <P>SOLUTION: This method of fixing and holding the three-layer MEA film is composed of a process in which electrode membranes B1, B2 of which each total periphery is cut smaller by about 5-3 mm from a solid polymer membrane A of the MEA (Membrane-Electrode Assembly) before jointing, are arranged in a pair and mounted on the top side of a flexible sheet 1A fitted to a metal sheet fixing frame 2A, a process of superimposing the metal sheet fixing frame 2 fitted with the flexible sheet 1 and an annular packing 3 on the top side of the metal sheet fixing frame 2A, and a process in which air is evacuated from a sealed chamber W formed of the flexible sheets 1, 1A, the sheet fixing frames 2, 2A, and the annular packing 3, and the sealed chamber W is decompressed, and each membrane of the MEA before jointing is fixed. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
