| 摘要 |
PURPOSE:To produce a fuel cell which has stable performance over a long period by using a cooling plate which is made by superimposing the first plate in which cooling tubes are buried and the second plate upon each other through a fluoride grease and a fluorine-containing resin tape applied to the peripheries of the facing surfaces. CONSTITUTION:A nonpermeable graphite plate 16 with a size of 600X700 is prepared by graphitizing a molded plate, composed of graphite particles and pitch used as a binder, at 2,000 deg.C and then impregnating the graphitized plate with a resin under reduced pressure. Next, after grooves 17 are formed on the plate 16, cooling tubes 13 are buried and fixed in the grooves 17 by the use of a carbonic epoxy conductive adhesive 18. Next, a fluoride grease 19 is applied to the periphery of the upper surface of the plate 16 and a raw PTFE tape 20 used as a fluorine-containing resin tape is placed on the periphery. After that, an over plate 21 is superimposed on the plate 16, thereby making a cooling plate. |
