Electrolyte sheet for solid oxide fuel cell, unit cell for solid oxide fuel cell and solid oxide fuel cell equipped with same, method for testing electrolyte sheet for solid oxide fuel cell, and method for manufacturing electrolyte sheet for solid oxide fuel cell
A solid oxide and electrolyte sheet technology, which is applied to solid electrolyte fuel cells, fuel cell components, fuel cells, etc., can solve the problems of insufficient application of electrolyte sheet quality inspection methods, and achieve reduced damage and high reliability , the effect of high reliability
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Embodiment 1
[0149] (Manufacturing of 6ScSZ electrolyte sheet)
[0150] Prepare 100 sets of combinations of the above-mentioned 6ScSZ green sheet and the protrusion-shaped alumina / zirconia spacers obtained above Figure 8 A laminate of ten 6ScSZ green sheets 60 and eleven spacers 50 as shown. The laminated body was placed on a 280 mm square alumina setter 41 with a thickness of 10 mm, and the setter was inserted into a batch type firing furnace in a state of being stacked on each other through pillars (not shown), and heated at 1420° C. Boil for 3 hours. Thus, 1000 6ScSZ electrolyte sheets having a square diameter of 100 mm and a thickness of 180 μm were produced. It should be noted that the surface roughness (Ra) of these electrolyte sheets was measured with a stylus roughness meter (manufactured by Mitsutoyo Corporation, model "SJ-201") based on JIS B0601:2001, and the average Ra of one surface The average Ra of the other surface is 0.05 μm and 0.12 μm.
Embodiment 2
[0152] (Production of 8YSZ electrolyte sheets)
[0153] Prepare 100 sets of combinations of the above-mentioned 8YSZ-based green sheet and the protrusion-shaped mullite spacers obtained as described above Figure 8 A laminate of ten 8YSZ green sheets 60 and eleven spacers 50 as shown. The laminate is placed on a 280 mm square alumina setter 41 with a thickness of 10 mm, and the setter is inserted into a batch type firing furnace in a state of being stacked on each other through a pillar (not shown), and at 1450 °C for 3 hours. Thus, 1000 8YSZ electrolyte sheets having a square of about 100 mm and a thickness of 250 μm were produced. The surface roughness (Ra) of these electrolyte sheets was measured by the same method as in Example 1, and the average Ra of one surface was 0.07 μm, and the average Ra of the other surface was 0.16 μm.
Embodiment 3
[0155] (Manufacturing of 6ScSZ electrolyte sheet)
[0156] Using the above 6ScSZ green sheet and the protrusion-shaped alumina / zirconia spacers and spherical alumina particle-based spacers obtained as described above, the protrusion-shaped alumina / zirconia spacers and spherical alumina particle-based spacers alternate Arranged among the 6ScSZ green sheets, 100 sets of laminates of 10 6ScSZ green sheets 60, 6 protrusion-shaped alumina / zirconia spacers, and 5 spherical alumina particle-based spacers were prepared in such a combination. The laminate was placed on a 280 mm square alumina setter with a thickness of 10 mm, and the setter was inserted into a batch-type firing furnace in a state of being stacked on each other through pillars, and fired at 1420° C. for 3 hours. . Thus, 1000 6ScSZ electrolyte sheets having a square diameter of 100 mm and a thickness of 180 μm were produced. The surface roughness (Ra) of these electrolyte sheets was similarly measured, and the average ...
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Abstract
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