METHOD FOR ACTIVATING ELECTRODES OF ELECTROCHEMICAL DEVICES ON SOLID ELECTROLYTES Russian patent published in 2021 - IPC H01M4/48 H01M4/88 

FIELD: power engineering.

SUBSTANCE: invention relates to the field of electrochemical power engineering and can be used in production of high-temperature electrochemical devices based on solid electrolytes, such as fuel cells, electrolysis cells, electrochemical pumps, sensors, etc., operating at temperatures of 600 to 800°C. According to the invention, the method for activating electrodes of electrochemical devices on solid electrolytes includes a singular impregnation of the electrode with pure nitric acid at a concentration of 0.4 to 0.8 mcl per 1 mg of the weight of the electrode, heat treatment of the impregnated electrode is executed at a rate of 50 to 150°C/h to a temperature of 800°C followed by sustaining for at least 1 hour.

EFFECT: reduction of the polarisation resistance of the electrode with high manufacturability and cost efficiency of the process of electrode activation.

1 cl, 2 dwg, 1 tbl