BATTERY OF SOLID-OXIDE FUEL ELEMENTS, AND GLASS, APPLIED AS GLASS SEALANT IN BATTERY OF SOLID-OXIDE FUEL ELEMENTS

摘要

FIELD: chemistry.;SUBSTANCE: claimed is a battery of solid-oxide fuel elements, obtained by a method, which contains the following stages: (a) formation of the first block of the fuel elements by alternation of, at least, one connecting plate with, at least, one unit of the fuel element, and providing a glass sealant in a space between the connecting plate and each unit of the fuel element, with the glass sealant containing, in wt %: 50-70 SiO₂, 0-20 Al₂O₃, 10-50 CaO, 0-10 MgO, 0-6 (Na₂O+K₂O), 0-10 B₂O₃ and 0-5 functional elements, selected from TiO₂, ZrO₂, F, P₂O₅, MoO₃, Fe₂O₃, MnO₂, La-Sr-Mn-O perovskite (LSM), and their combinations; (b) transformation of the said first block of the battery of fuel elements into the second block, which has the thickness of the glass sealant of 5-100 mcm, by heating the said first block to a temperature of 500°C or higher, and an impact on the battery of elements by loading pressure from 2 to 20 kg/cm²; (c) transformation of the said second block into the final block of the battery of fuel elements by cooling the second block from the stage (b) to a temperature lower than the temperature at the stage (b).;EFFECT: increase of the strength limit of the fuel element under the cyclic temperature impact due to application of connective plates with a low coefficient of heat expansion constitutes the technical result of the invention.;15 cl, 2 dwg, 4 ex