ELECTROLYTIC CAPACITOR AND MANUFACTURING METHOD THEREOF
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United States of America Patent
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Issued Date -
May 26, 2011
app pub date -
Nov 16, 2010
filing date -
Nov 26, 2009
priority date (Note) -
Abandoned
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Abstract
An electrolytic capacitor includes a capacitor element configured by winding an anode chemical conversion foil and a facing cathode foil with no separator interposed therebetween, wherein a first solid electrolyte layer is formed on at least one of facing surfaces of the anode chemical conversion foil and the facing cathode foil, among surfaces of the anode chemical conversion foil and surfaces of the facing cathode foil, concaves and convexes are formed in a main surface of the first solid electrolyte layer, and an electrolyte solution or a second solid electrolyte layer containing a conductive polymer is formed in an interspace formed between the anode chemical conversion foil and the facing cathode foil by the concaves and convexes. An electrolyte having desired characteristics can be formed in the interspace obtained by the concaves and convexes.
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