HIGH-TEMPERATURE ELECTROCHEMICAL CELL AND METHOD OF ITS MANUFACTURING Russian patent published in 2024 - IPC G01N27/409 

FIELD: performing operations.

SUBSTANCE: group of inventions relates to creation of multilayer structures from high-temperature oxide materials, which are used in gaseous media for determination of oxygen content. High-temperature electrochemical cell contains layers of ceramic films of oxide materials, namely a layer of zirconium dioxide as a solid electrolyte, on which a reference and working electrodes are applied, and two layers of an aluminium-magnesium spinel, one layer as an insulator and another layer for heating elements. Layers are made of ceramic powder of zirconium dioxide, which is stabilized in cubic phase of 8 mol.% of yttrium oxide, and ceramic powder of aluminium-magnesium spinel with 40% of excess magnesium oxide, wherein the specific surface area of zirconium dioxide S_sp(ZrO₂) corresponds to range of 8,000-9,000 cm²/g, and the specific surface area of the aluminium-magnesium spinel S_sp(MgAl₂O₄) corresponds to range of 12,500-14,500 cm²/g, ratio of specific surface areas of MgAl₂O₄ to ZrO₂ is close to 1.67.

EFFECT: simplifying the process of making an electrochemical cell of an oxygen sensor and obtaining a high-temperature electrochemical cell operating at multiple thermal pumping.

2 cl, 3 dwg