Wet electrolytic capacitor and method for fabricating of improved electrolytic capacitor cathode
US8673025B1 · kind B1 · utility
4Cited by
3References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 9, 2010 |
| Grant date | Mar 18, 2014 |
| Priority date | — |
| Expiry date | Oct 21, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for making a valve metal material useful for forming electrolytic devices comprising the steps of: establishing multiple tantalum or niobium components in a billet of a ductile material; working the billet to a series of reduction steps to form said tantalum or niobium components into elongated elements; cutting the resulting elongated elements and leaching the ductile metal from the elements; washing and mixing the cut elements; and forming the cut elements into a sheet. The resulting sheet may be formed into anodes and cathodes and assembled to form a wet electrolytic capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.