公开(公告)号：US20180240600A1

公开(公告)日：2018-08-23

申请号：US15954179

申请日：2018-04-16

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Tatsuji AOYAMA ,  Tomoyuki TASHIRO ,  Junya KUSHIZAKI ,  Shunpei MATSUSHITA

IPC: H01G9/00 ,  H01G9/02 ,  H01G9/035 ,  H01G9/07 ,  H01G9/008 ,  H01G9/145 ,  H01G9/15

CPC classification number: H01G9/0032 ,  H01G9/0029 ,  H01G9/008 ,  H01G9/02 ,  H01G9/028 ,  H01G9/035 ,  H01G9/07 ,  H01G9/145 ,  H01G9/15 ,  H01L23/5227 ,  H01L27/08 ,  H01L28/10 ,  H01L28/40

Abstract: A method for producing an electrolytic capacitor includes: a first step of preparing a capacitor element that includes an anode body on which a dielectric layer is formed; a second step of impregnating the capacitor element with a first treatment solution containing a first solvent and a conductive polymer; a third step of impregnating, after the second step, the capacitor element with a second treatment solution containing a second solvent; and a fourth step of impregnating, after the third step, the capacitor element with an electrolyte solution containing a third solvent. Both the second solvent and the third solvent are an aprotic solvent.