Aluminum electrolytic capacitor
US6307733A · kind A · utility
21Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 26, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Jan 26, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/008
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aluminum electrolytic capacitor includes an anode sheet of aluminum, a cathode sheet of aluminum, and separators disposed to sandwich either the anode sheet or the cathode sheet. Anode lead tabs of aluminum are connected to the anode sheet by "needling" or welding. Cathode lead tabs formed of an aluminum sheet are connected to the cathode sheet by "needling" or welding. The surface of each of the cathode lead tabs contacting the separator is roughened. Alternatively, an aluminum thin sheet may be disposed to overlie each of smooth-surfaced cathode lead tabs, with its surface contacting the separator roughened.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.