Cathode foil for electrolytic capacitors
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United States of America Patent
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Jul 9, 1991
Grant Date -
N/A
app pub date -
Sep 19, 1989
filing date -
Sep 27, 1988
priority date (Note) -
Expired
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Abstract
An aluminum alloy that is suitable as material for cathode foils in electrolytic capacitors comprises 0.9 to 1.7% iron 0.1 to 0.8% manganese max. 0.15% silicon 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%.
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