ACTIVE ELECTRODE FOR HIGH-TEMPERATURE ELECTROCHEMICAL DEVICES WITH SOLID ELECTROLYTE Russian patent published in 1997 - IPC

FIELD: electrodes (cathode and anode) for various electrochemical devices, in particular, high-temperature fuel cells, electrolyzers and oxygen concentrators. SUBSTANCE: active electrode contains the base and the additive of solid electrolyte composed of Bi2O3-Y2O3, or a mixture of electrolytes Bi2O3-Y2O3 and ZrO2-Sc2O3, or a mixture of Bi2O3-Y2O3 and ZrO2-Y2O3 in the amount of 3 to 20 percent by mass. Chromites, manganites or cobaltites of composition LN_xCa_1-xMe_1-yM_yO₃, or Ln_xSr_10xMe_1-yM_yO₃, where Ln - La, Nd, Sm, Gd Me-Cr, Mn, Co; M-Mg, Cu, Co, Mn, Cr; 0.5=>x=>0.2; 0.1=>y=>0 are used as the base representing a compound of the perovskite type with electron conduction. EFFECT: enhanced efficiency. 2 cl, 1 tbl