METHOD FOR PRODUCTION OF CATHODE LINING FOR SOLID-ELECTROLYTE CAPACITOR Russian patent published in 2014 - IPC H01G9/32 H01G9/52 H01G4/10 

FIELD: electricity.

SUBSTANCE: method for production of cathode lining for a solid-electrolyte capacitor lies in application of a multilayer cathodic coating of manganese dioxide on oxidised slug of valve metal and includes multiple cycles of anode impregnation and pyrolysis using an impregnating water solution with cycle-to-cycle increasing concentration of manganous nitrate with addition of nitric acid as an active non-halogenated oxidising agent in quantity that ensures value of pH 1 at most in the impregnating solution and water steam during pyrolysis, as well as additional formation of anodes after each layer of manganese dioxide and final treatment of the formed multilayer coating of manganese dioxide by nitric acid fumes at high temperature of 55-70°C during at least 1 minute.

EFFECT: stable improved electrical performance of the capacitor, including low equivalent series resistance, increase in output of nondefective items with reduction of material consumption and energy resources.

2 tbl, 2 dwg, 6 ex