BRENNSTOFFZELLE, ELEKTRODE FUER DIE ZELLE UND VERFAHREN ZUR HERSTELLUNG.

摘要

A molten carbonate-type fuel cell comprising two electrodes (1, 2) as anode and cathode, an electrolyte plate (3) and separators (4) in a single unit and a battery of the unit cells stacked. The electrodes (1, 2) comprise a porous plate (35) of an electron-conducting material (11) such as nickel containing particles of ceramics such as magnesium oxide uniformly dispersed therein in an amount of 2 to 20 atomic %, except for the superficial thin portion (35') free of the ceramic particles on the one-side surface of the plate (35). The electrodes (1, 2) are prepared by mixing a powder (11) of the electron-conducting material with an organic binder (12) while stirring to obtain a slurry or paste (16), deaerating the slurry or paste (16) to remove entrained air bubbles therefrom, shaping the slurry or paste plate (35) with or without a metal wire net (20), drying the electrode plate (35) at room temperature and finally firing the plate (35) in a reducing atmosphere. Thereupon, applying a water repellant onto the one-side surface of said porous electrode plate, impregnating with a dispersion or solution of a ceramics-affording source, drying end prefiring the plate in an oxidizing atmosphere and finally firing the plate in a reducing atmosphere.