Electrolytic solution for driving electrolytic capacitor and electrolytic capacitor
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United States of America Patent
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May 26, 2009
Grant Date -
Feb 8, 2007
app pub date -
Oct 4, 2006
filing date -
Sep 26, 2001
priority date (Note) -
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status (Latency Note)
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Abstract
An electrolytic capacitor using an electrolytic solution constituted by a solvent consisting of from 20 to 80 wt % of an organic solvent and from 80 to 20 wt % of water, the electrolytic capacitor comprising a nitro or nitroso compound except for nitrophenol, nitrobenzoic acid, dinitrobenzoic acid, nitrophenone and nitroanisole, in a portion inside the capacitor other than in the electrolytic solution. The electrolytic capacitor exhibits a low impedance, excellent low temperature stability and good life characteristics, and further, is excellent in the effect to absorb a hydrogen gas, even when use is made of an electrolyte solution employing mixed solvent having a great water content and when an electrolytic capacitor is used under a high temperature condition.
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