Invention Grant
- Patent Title: Electrolytic capacitor and method for producing same
-
Application No.: US17813605Application Date: 2022-07-20
-
Publication No.: US12119185B2Publication Date: 2024-10-15
- Inventor: Yoshiaki Ishimaru , Yoshikazu Hirata
- 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: Rimon P.C.
- Priority: JP 20013195 2020.01.30
- Main IPC: H01G9/028
- IPC: H01G9/028 ; H01G9/035 ; H01G9/15

Abstract:
An electrolytic capacitor includes a capacitor element. The capacitor element includes an electrode group including an anode body, a cathode body, a separator, and an electrolyte layer. The anode body and the cathode body each has a foil shape. The anode body has a dielectric layer on a surface of the anode body. The electrolyte layer is in contact with the anode body, the cathode body, and the separator. The electrolyte layer contains a conductive polymer and a hydroxyl group-containing compound having a melting point of 50° C. or higher. The hydroxyl group-containing compound is at least one compound selected from the group consisting of a sugar and a polyhydric alcohol. The hydroxyl group-containing compound is unevenly distributed more in a peripheral portion of the capacitor element than in a central portion of the capacitor element.
Public/Granted literature
- US20220375693A1 ELECTROLYTIC CAPACITOR AND METHOD FOR PRODUCING SAME Public/Granted day:2022-11-24
Information query