| 摘要 |
PURPOSE:To prevent a gas leakage securely and to realize a long service life, by arranging grooves at the periphery of an electrode with rib parallel to each flow passage contacting to the periphery of a gas separator plate, and plugging the porous part at the bottom of the groove with a heatproof and electrolyte- resisting micropowder, and filling a sealing material in the grooves. CONSTITUTION:The porous part at the bottom 8 of the groove 6 at the end of an electrode 2 with rib is plugged with a heatproof and electrolyte-resisting micropowder 7, and at the groove 6 at the end of the electrode 2 with rib, is furnished a mixture 9 made by mixing and kneading 30 to 60 wt% of a heatproof and electrolyte-resisting scaly graphite powder and 70 to 40 wt% of phosphoric acid as a sealing material. There fore, it is made possible to prevent securely the gas leakage from the end of the electrode 2 with rib and from the laminated surface with a gas separator plate 3 by the heatproof and electrolyte-resisting micropowder 7 and kneaded mixture 9 respectively to realize a long service life, and a fuel cell of an extremely high reliability can be produced. |
