| 摘要 |
PURPOSE:To provide a manufacturing method for a solid electrolyte film which can be formed at a lower temperature and is faster in film forming rate by adding titanium oxide to yttrium stabilized zirconia electrolyte. CONSTITUTION:When a solid electrolyte film is formed on the porous substrate of a solid electrolyte fuel cell by electrochemical evaporation, titanium oxide TiO2 is added to yttrium stabilized zirconia ZrO2-Y2O3 electrolyte. The ZrO2-Y2 O3 electrolyte to which TiO2 is added becomes a mixed conductor with both ion conductivity and electron conductivity under fuel pole atmosphere. Thus, because three-phase surface is spread at fuel poles, a cell of less polarization can be obtained, the solid electrolyte film can be formed at a lower temperature, and a film forming rate per unit time can be increased. |
