METHOD OF MAKING CATHODE MASS FOR THERMAL CHEMICAL CURRENT SOURCE Russian patent published in 2024 - IPC H01M6/36 H01M4/08 

FIELD: electrochemical power engineering.

SUBSTANCE: invention relates to electrochemical power engineering and can be used in production of thermal chemical current sources. Method of producing a cathode mass for a thermal chemical current source involves mixing prepared powders of pyrite, salt electrolyte, magnesium oxide and lithium hydroxide, then preparing a salt electrolyte, the composition of which includes lithium chloride, potassium chloride, lithium fluoride, preparing a mixture from the obtained salt electrolyte and magnesium oxide, after which the obtained mixture is mixed with pyrite, salt electrolyte and lithium hydroxide, to which a salt electrolyte is additionally added, obtained mixture is loaded into roller mill drum and mixed to produce cathode mass, then the cathode mass is separated from the balls on the vibrating sieve, the separated cathode mass is loaded onto a tray, which is placed into a vacuum furnace and evacuated to a residual pressure of 0.098 MPa, heated to 350°C, held for 60–70 minutes, heated to 500°C and held for 70–80 minutes with subsequent cooling to 90–100°C and its unloading from vacuum furnace.

EFFECT: increasing cathode capacity of thermal chemical current source due to uniform distribution of components in volume of cathode mass and, as a result, more complete consumption of active substance.

1 cl, 4 ex, 1 tbl