Cathode foil for electrolytic capacitors
US5030416A · kind A · utility
2Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 1989 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Sep 19, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12431
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An aluminum alloy that is suitable as material for cathode foils in electrolytic capacitors comprises PA1 0.9 to 1.7% iron PA1 0.1 to 0.8% manganese PA1 max. 0.15% silicon PA1 max. 0.3% copper, the remainder being aluminum with further trace elements, individually <0.05%, in total <0.15%, and the total iron and manganese content amounting to at most 1.9%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.