公开(公告)号：US20170309406A1

公开(公告)日：2017-10-26

申请号：US15646567

申请日：2017-07-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： SHINTARO TANIMOTO ,  YOUICHIROU UKA

IPC: H01G9/15 ,  H01G9/00

CPC classification number: H01G9/15 ,  H01G9/0036 ,  H01G9/028 ,  H01G9/0425

Abstract: An electrolytic capacitor includes: an anode body; a dielectric layer; a first conductive polymer layer; a second conductive polymer layer; and a first intermediate layer. The dielectric layer is formed on the anode body. The first conductive polymer layer covers at least a part of the dielectric layer. The second conductive polymer layer covers at least a part of the first conductive polymer layer. The first intermediate layer is formed between the first conductive polymer layer and the second conductive polymer layer. The first intermediate layer includes both a cationic agent and an anionic agent, and the first intermediate layer has a first region and a second region, the first region facing the first conductive polymer layer, the second region facing the second conductive polymer layer. The first region contains a greater amount of the anionic agent than the second region, and the second region contains a greater amount of the cationic agent than the first region.

公开(公告)号：US20170098510A1

公开(公告)日：2017-04-06

申请号：US15381479

申请日：2016-12-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOUICHIROU UKA ,  SHINTARO TANIMOTO

IPC: H01G9/028 ,  H01G9/012 ,  H01G9/15 ,  H01G9/00

CPC classification number: H01G9/028 ,  H01G9/0036 ,  H01G9/012 ,  H01G9/15

Abstract: Disclosed is an electrolytic capacitor including: an anode body; a dielectric layer formed over the anode body; a first conductive polymeric layer covering at least one portion of the dielectric layer; a second conductive polymeric layer covering at least one portion of the first conductive polymeric layer; and an intermediate layer formed between the first conductive polymeric layer and the second conductive polymeric layer. The intermediate layer includes a cation agent containing at least one cationic group, and an anion agent containing at least one first anionic group and at least one second anionic group, and the first anionic group is higher in electron-withdrawing property than the second anionic group. The anion agent includes a polymer containing the first anionic group and the second anionic group.