| abstract |
[PROBLEMS] The present invention stably exhibits excellent oxygen ion conductivity, suppresses the generation of minute closed pores in an electrolyte matrix, and has sufficient mechanical strength for handling and stable strength characteristics even under operating conditions. And a method for producing an electrolyte sheet for a solid oxide fuel cell having excellent performance as a solid electrolyte membrane for a fuel cell, and an electrolyte sheet obtained by the production method. The above object is characterized in that the raw material ceramic powder is composed of an electrolyte powder having an average particle size of 0.2 to 1 μm and oxide nanoparticles (excluding alumina nanoparticles) having an average particle size of 10 to 100 nm. This can be achieved by the electrolyte sheet for a solid oxide fuel cell. [Selection figure] None |