SOLID ELECTROLYTIC CAPACITOR WITH IMPROVED RELIABILITY

The present invention if related to an improved electrolytic capacitor and a method of making the improved electrolytic capacitor. The electrolytic capacitor comprises an anode comprising a dielectric layer on the anode. A first mordant layer is on the dielectric wherein the first mordant layer comprises a mordant compound of Formula A:wherein:R1 and R2 is independently selected from H; cation, linear alkyl, cyclic alkyl or substituted alkyl of 1 to 10 carbons;R3 is selected from -CR4R5R6 wherein R4 represents a hydrogen, an alkyl of 1-20 carbons or an aryl of 6-20 carbons; R4 and R5 can be taken together to represent a cyclic alkyl or substituted cyclic alkyl or (-CR6OP(O)OR1OR2)n;R5 represents an alkyl of 1-20 carbons or an aryl of 6-20 carbons; R4 and R5 can be taken together to represent a cyclic alkyl or substituted cyclic alkyl or (-CR6OP(O)OR1OR2)n;R6 represents a hydrogen, an alkyl of 1-20 carbons or an aryl of 6-20 carbons; andn is an integer from 1 to 20; anda crosslinker. A primary conductive polymer layer is on the first mordant layer.