| 摘要 |
PURPOSE:To obtain a long life of light-weighted interconnector with large conductivity, by using a metal to a grooved interconnector base body, and coating the surface of the interconnector with a mixture of thermal, chemical resistant binder and graphite. CONSTITUTION:The surface of a metallic interconnector base body 18 is coated with a paste-like mixed film 19 made of a thermal, chemical resistant binder and finely graunulated graphite. The both surfaces of a metallic interconnector base body 18 are provided with ribs 20 and 21 respectively, and grooves 22 and 23 are formed for the flowing paths of fluid fuel and fluid oxidizing agent respectively. A mixed film 19 can be formed by thinly painting the body with a paste-like mixture of thermal, chemical resistant thermosetting or thermoplastic binder and finely granulated graphite, then by subjecting to heat-treatment; or the mixed film 19 can be also formed by spraying the dispersion solution of the mixture on the body, then by subjecting to heat-treatment. |
