High capacitance niobium powders and electrolytic capacitor anodes
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United States of America Patent
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Jul 6, 2010
Grant Date -
Dec 2, 2004
app pub date -
Mar 8, 2004
filing date -
May 12, 1999
priority date (Note) -
Expired
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Abstract
A niobium powder is described which when formed into an electrolytic capacitor anode, the anode has the capacitance of at least 62,000 CV/g. Methods of making flaked niobium powder which have high capacitance capability when formed into electrolytic capacitor anodes is also described. Besides niobium, the present invention is also applicable to other metals, including valve metals.
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