GLASS SEALANT FOR BATTERIES OF SOLID OXIDE ELECTROLYSIS CELLS (SOEC) Russian patent published in 2015 - IPC H01M8/02 C25B9/06 C03C3/91 C03C8/24 C03C29/00 C03C10/06 C03C10/08 C03C10/10 C03C10/14 C03C8/02 C03C8/16 C04B37/02 

FIELD: chemistry.

SUBSTANCE: invention relates to battery of solid oxide electrolysis cells (SOEC), manufactured by method, including the following stages: (a) formation of first block of battery cells by alternation of at least one connective plate and at least one cell unit, with each cell unit containing first electrode and electrolyte, located between said electrodes, as well as provision of glass sealant between connective plate and each cell unit, with glass sealant having the following composition: from 50 to 70 wt % SiO₂, from 0 to 20 wt % Al₂O₃, from 10 to 50 wt % CaO, from 0 to 10 wt % MgO, from 0 to 2 wt % (Na₂O+K₂O), from 0 to 10 wt % B₂O₃ and from 0 to 5 wt % functional elements, selected from TiO₂, ZrO₂, F₂, P₂O₅, MoO₃, Fe₂O₃, MnO₂, La-Sr-Mn-O perovskite (LSM) and their combinations; (b) conversion of said first block of battery of cells into second block with glass sealant from 5 to 100 mcm thick by heating said first block to temperature 500°C or higher and influencing battery of cells by pressure from 2 to 20 kg/cm²; (c) conversion of said second block into final block of battery of solid oxide electrolytic cells by cooling second battery block, obtained at stage (b), to temperature lower than at stage (b), with said glass sealant at stage (a) representing glass fibre sheet. Invention also relates to application of E-glass as glass sealant in batteries of solid oxide electrolysis cells.

EFFECT: claimed batteries demonstrate low degree of impairment of properties in the process of exploitation.

9 cl, 1 dwg