Patent ID: 9218913
Filing Date: 2015-12-22
Classification: C09D,C25D,H01G

Abstract:
1. A wet electrolytic capacitor comprising: an anode comprising a sintered porous anode body that is coated with a dielectric, wherein the anode body comprises tantalum; a cathode that comprises a metal substrate over which is disposed a conductive polymer coating, wherein the conductive polymer coating contains an alkyl-substituted poly(3,4-ethylenedioxythiophene) having the following general structure: wherein R 2 is hydrogen or an alkyl group, n is from 1 to 2,000, and y is from 1 to 10; and a fluid working electrolyte in communication with the anode and the cathode, wherein the electrolyte has a pH of from about 4.5 to about 7.0.