Invention Publication
- Patent Title: ELECTROLYTIC CAPACITOR AND LIQUID COMPONENT FOR ELECTROLYTIC CAPACITOR
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Application No.: US18502118Application Date: 2023-11-06
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Publication No.: US20240177941A1Publication Date: 2024-05-30
- Inventor: YUICHIRO TSUBAKI , KENTA CHASHIRO , HIROYUKI ARIMA
- 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
- Priority: JP 22190712 2022.11.29
- Main IPC: H01G9/035
- IPC: H01G9/035 ; C08K5/053 ; C08K5/1539 ; C08K5/45 ; H01G9/025 ; H01G9/145 ; H01G9/15

Abstract:
An electrolytic capacitor includes a capacitor element and a liquid component. The capacitor element includes an anode body including a dielectric layer on a surface of the anode body, and a solid electrolyte layer covering at least a part of a surface of the dielectric layer. The solid electrolyte layer contains a conductive polymer component, and the liquid component contains a first polymer component. The first polymer component includes a carbon chain whose main chain does not contain a heteroatom at a position other than a terminal of the main chain. Units constituting the first polymer component include at least one first unit selected from the group consisting of a (meth)acrylic acid-based unit having a carboxy group and a vinyl alcohol-based unit having a hydroxy group. A proportion of the at least one first unit in an entirety of the units constituting the first polymer component is more than 50 mass %.
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