The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2014
Filed:
Jul. 28, 2011
Martin Biler, Lanskroun, CZ;
Dirk H. Dreissig, Myrtle Beach, SC (US);
Frantisek Priban, Zabreh, CZ;
Jan Petrzilek, Orlici, CZ;
Martin Biler, Lanskroun, CZ;
Dirk H. Dreissig, Myrtle Beach, SC (US);
Frantisek Priban, Zabreh, CZ;
Jan Petrzilek, Orlici, CZ;
AVX Corporation, Fountain Inn, SC (US);
Abstract
A wet electrolytic capacitor including a porous anode body containing a dielectric layer, a cathode containing a metal substrate on which is disposed a conductive polymer coating, and an electrolyte is provided. The conductive polymer coating is in the form of a dispersion of particles having an average diameter of from about 1 to about 500 nanometers, in some embodiments from about 5 to about 400 nanometers, and in some embodiments, from about 10 to about 300 nanometers. The relatively small size of the particles used in the coating increases the surface area that is available for adhering to the metal substrate, which in turn improves mechanical robustness and electrical performance (e.g., reduced equivalent series resistance and leakage current). Another benefit of employing such a dispersion for the conductive polymer coating is that it may be able to better cover crevices of the metal substrate and improve electrical contact.