HIGH-ACTIVE MULTI-LAYERED THIN-FILMED CERAMIC STRUCTURE OF ACTIVE PART OF ELEMENTS OF SOLID OXIDE DEVICES Russian patent published in 2018 - IPC H01M8/12 H01M8/122 

FIELD: instrument engineering.

SUBSTANCE: high-active multi-layered thin-filmed ceramic structure of the active part of solid oxide devices for high-efficiency current generation, generation of hydrogen by electrolysis of water, generation of oxygen and nitrogen by solid oxide oxygen pumps, conversion of fuel gases using electrochemical processes includes a solid electrolyte, catalyzing electrodes – mixed ion-electron anode and cathode conductors, having the catalytic ability using electrochemical processes, and includes an active part in the form of a thin-layered, thin-filmed structure consisting of at least seven layers. Said solid electrolyte has a typical thickness of about 1–2 mcm, on both sides, it has dense layers of 30–50 mcm, consisting of mixed ion-electron anode and cathode conductors, whose free surface is covered with catalytic layers and current collectors in the form of nets. Above mixed conductors are connected to current collectors, which form the fuel and oxidizing gas spaces and, at the same time, increase the working surface of the electrolyte, and are designed to connect the current cells to the batteries. Said gas-tight anodic and cathodic mixed conductors have ionic conductivity at the level of the solid electrolyte, have a thickness that provides both mechanical strength and thermal conductivity, ensuring the passage of high current and uniform heat distribution across the active part of the element. Further, the outer surface of each mixed conductor, having a developed corrugated surface, is coated with a fine-dispersed catalyst of the corresponding reaction, held by metal grids.

EFFECT: increased electrochemical activity of electrodes, active specific power of high-temperature electrochemical devices with a solid electrolyte with anionic and proton conductivity is the technical result of the invention.

6 cl, 9 dwg