- Patent Title: Electrolytic capacitor comprising an anode body, a cathode body and a conductive polymer and a liquid component disposed between the anode body and the cathode body
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Application No.: US16706615Application Date: 2019-12-06
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Publication No.: US11456120B2Publication Date: 2022-09-27
- Inventor: Yuichiro Tsubaki , Kazuyo Saito , Tatsuji Aoyama
- 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: JPJP2018-247077 20181228
- Main IPC: H01G9/035
- IPC: H01G9/035 ; H01G9/145 ; H01G9/028 ; H01G9/15

Abstract:
An electrolytic capacitor includes an anode body, a cathode body, and a conductive polymer and a liquid component that are disposed between the anode body and the cathode body. The liquid component contains an acid component, a base component, and an aromatic additive. The acid component includes at least one of an aromatic carboxylic acid and an aromatic carboxylic acid derivative. The at least one of the aromatic carboxylic acid and the aromatic carboxylic acid derivative includes at least two carboxy groups and at least one aromatic ring. A content proportion of the base component in the liquid component is more than or equal to 1% by mass. The aromatic additive includes an electron withdrawing group and an electron donating group. A content ratio of the aromatic additive contained in the liquid component is more than or equal to 50 parts by mass with respect to 100 parts by mass of the conductive polymer.
Public/Granted literature
- US20200211785A1 ELECTROLYTIC CAPACITOR Public/Granted day:2020-07-02
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