Invention Grant
- Patent Title: Electrolytic capacitor and method for manufacturing same
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Application No.: US17562098Application Date: 2021-12-27
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Publication No.: US11763999B2Publication Date: 2023-09-19
- Inventor: Yukiyasu Sugihara , Norihiko Ogata , Kazuhide Gotou , Yuma Yano , Yuki Ueda , Takeshi Minamiura , Masayuki Hogiri
- 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: JP 21012244 2021.01.28
- Main IPC: H01G9/052
- IPC: H01G9/052 ; H01G9/00 ; H01G9/15

Abstract:
An electrolytic capacitor includes an anode body having a porous structure, an anode lead partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a cathode part that covers at least part of the dielectric layer. The anode body has a first region in which first particles sintered together and a second region in which second particles sintered together. The average particle diameter D1 of the first particles is smaller than the average particle diameter D2 of the second particles. The volume-based pore diameter distribution of the anode body with the dielectric layer has a first peak in a range of less than or equal to 0.5 μm in pore diameter, and a second peak in a range of more than 0.5 μm in pore diameter.
Public/Granted literature
- US20220238282A1 ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING SAME Public/Granted day:2022-07-28
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