Anodes with corner and edge modified designs
US7658986B2 · kind B2 · utility
13Cited by
9References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2007 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Jul 4, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249991
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Porous sintered anode bodies for capacitors formed from valve metals are treated by electrolysis to form a dielectric layer and coated with cathode layers. When standard parallelpiped shapes are used, cathode coverage at the edges and corners is non-uniform and failures occur at those locations. Rectangular prisms, obround prisms and cylindrical prisms are formed with transition surfaces at edges and corners, such as chamfers and curves, to enhance cathode layer uniformity. The transition surface greatly enhances the application of polymer slurries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.