Invention Grant
- Patent Title: Electrolytic capacitor and conductive polymer dispersion for manufacturing electrolytic capacitor
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Application No.: US16172458Application Date: 2018-10-26
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Publication No.: US10861654B2Publication Date: 2020-12-08
- Inventor: Youichirou Uka , Makoto Nagashima , Tetsuro Iwasa , Koji Okamoto
- Applicant: Panasonic Intellectual Property Management Co., Ltd.
- Applicant Address: JP Osaka
- Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
- Current Assignee Address: JP Osaka
- Agency: McDermott Will & Emery LLP
- Priority: JP2014-042238 20140305
- Main IPC: H01G9/15
- IPC: H01G9/15 ; H01G9/028 ; H01G9/00 ; H01G9/04 ; H01G9/07

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.
Public/Granted literature
- US20190074139A1 ELECTROLYTIC CAPACITOR AND CONDUCTIVE POLYMER DISPERSION FOR MANUFACTURING ELECTROLYTIC CAPACITOR Public/Granted day:2019-03-07
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