SOLID ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING THE SAME

Japanese Patent JP2017199929

A

PROBLEM TO BE SOLVED: To provide a solid electrolytic capacitor of a high withstand voltage, which can prevent the worsening of voltage endurance owing to a lead-free reflow or the like, and a method for manufacturing the solid electrolytic capacitor.SOLUTION: A method for manufacturing a solid electrolytic capacitor comprises the steps of: impregnating a dispersion containing particles or powder of a conductive polymer, and a solvent into a capacitor element arranged by winding positive electrode foil and negative electrode foil with a separator disposed therebetween, thereby forming a solid electrolyte layer made of the conductive polymer; and filling an ion-conducting substance in a gap portion in the capacitor element with the solid electrolyte layer formed therein, provided that the ion-conducting substance includes a mix solvent containing ethylene glycol and γ-butyrolactone, and a solute selected from at least one kind of an ammonium salt, a quaternary ammonium salt, a quaternary amidinium salt and an amine salt of an organic acid, an inorganic acid, and a composite compound of an organic acid and an inorganic acid.SELECTED DRAWING: None

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KOSEKI YOSHIYA
KURODA KOICHI
KAWAKAMI JUNICHI
SAKAKURA MASARO

JP2017134370A

November 02, 2017

July 10, 2017

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NIPPON CHEMICON

H01G9/028; H01G9/00; H01G9/035

JPH11283874A	1999-10-15
JP2008010657A	2008-01-17
JPS61182212A	1986-08-14
JP2003109880A	2003-04-11
JP2012124239A	2012-06-28
JP2008066502A	2008-03-21

Kiuchi Mitsuharu

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