Electrolytic capacitor and conductive polymer dispersion for manufacturing electrolytic capacitor

An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a π-conjugated conductive polymer, a high-molecular-weight dopant having an acid grou...

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Main Authors Okamoto, Koji, Iwasa, Tetsuro, Uka, Youichirou, Nagashima, Makoto
Format Patent
LanguageEnglish
Published 08.12.2020
Subjects
BASIC ELECTRIC ELEMENTS
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
ELECTRICITY
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Abstract An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a π-conjugated conductive polymer, a high-molecular-weight dopant having an acid group, and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a C2-3 alkylene oxide group.
AbstractList An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer. The solid electrolyte layer includes a π-conjugated conductive polymer, a high-molecular-weight dopant having an acid group, and a water-soluble polymer. The water-soluble polymer is a copolymer including a hydrophilic monomer unit having a hydrophilic group. The hydrophilic group is at least one group selected from the group consisting of a carboxyl group, an acid anhydride group, a phenolic hydroxyl group, and a C2-3 alkylene oxide group.
Author Iwasa, Tetsuro
Uka, Youichirou
Okamoto, Koji
Nagashima, Makoto
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Snippet An electrolytic capacitor includes an anode body, a dielectric layer formed on the anode body, and a solid electrolyte layer covering at least a portion of the...
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SubjectTerms BASIC ELECTRIC ELEMENTS
CAPACITORS
CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
ELECTRICITY
Title Electrolytic capacitor and conductive polymer dispersion for manufacturing electrolytic capacitor
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