Invention Grant
- Patent Title: Electrolytic capacitor
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Application No.: US16833951Application Date: 2020-03-30
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Publication No.: US11302486B2Publication Date: 2022-04-12
- Inventor: Yuichiro Tsubaki , Tatsuji Aoyama , Kazuyo Saito , Yuji Otsuka
- 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: JPJP2017-210677 20171031
- Main IPC: H01G9/035
- IPC: H01G9/035 ; H01G9/028 ; H01G9/048

Abstract:
An electrolytic capacitor includes a capacitor element and an electrolytic solution. The capacitor element includes: an anode body including a dielectric layer; a cathode body; and a solid electrolyte in contact with the dielectric layer. The electrolytic solution includes a solvent, a solute, and a polymer component. The solvent includes an ethylene glycol compound. The polymer component includes polyalkylene glycol. The polyalkylene glycol includes at least one of (i) a mixture of polyoxyethylene and polyoxypropylene and (ii) an oxyethylene-oxypropylene copolymer. In the polyalkylene glycol, a molar ratio m/n of oxyethylene units to oxypropylene units is greater than 1.
Public/Granted literature
- US20200227208A1 ELECTROLYTIC CAPACITOR Public/Granted day:2020-07-16
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