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:
Apr. 01, 2014
Filed:
Jan. 12, 2011
James Steven Bates, Saco, ME (US);
Robert Hazen Pease, North Berwick, ME (US);
James Steven Bates, Saco, ME (US);
Robert Hazen Pease, North Berwick, ME (US);
AVX Corporation, Fountain Inn, SC (US);
Abstract
A relatively thin planar anode for use in a wet electrolytic capacitor is provided. Through a combination of specific materials and processing techniques, the present inventors have surprisingly discovered that the resulting anode may possess a high volumetric efficiency, yet still be able to operate at a high voltage and capacitance, resulting in a capacitor with a high energy density. The anode is a pressed pellet formed from an electrically conductive powder that contains a plurality of particles (including agglomerates thereof) having a flake-like morphology. The present inventors have discovered that such a morphology can optimize packing density, which reduces the thickness of the anode and improves volumetric efficiency. Such particles can provide a short transmission line between the outer surface and interior of the anode and a highly continuous and dense wire-to-anode connection with high conductivity. The particles may also increase the breakdown voltage and help lower ESR.