Title:
SOLID ELECTROLYTIC CAPACITOR ELEMENT AND SOLID ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2022/044939
Kind Code:
A1
Abstract:
Provided is a solid electrolytic capacitor capable of reducing a decrease in capacitance by employing a solid electrolytic capacitor element comprising an anode body 110 having a porous portion in a surface thereof, a dielectric body layer 113 coating the anode body 110, and a cathode portion 130 coating the dielectric body layer 113. The cathode portion 130 includes a solid electrolyte layer 120 coating the dielectric body layer 113. The anode body 110 includes a first anode body portion 111 where the solid electrolyte layer 120 is formed and a second anode body portion 112 where the solid electrolyte layer 120 is not formed. The solid electrolyte layer 120 includes a first solid electrolyte layer disposed in the porous portion, and a second solid electrolyte layer disposed outside the porous portion. The second solid electrolyte layer has a layer thickness greater than or equal to 1 μm in a region R1 between an interface B between the first anode body portion 111 and the second anode body portion 112 and a position at a length of 0.05 L from the interface B toward the first anode body portion 111, where L is the length of the first anode body portion 111 in the longitudinal direction thereof.
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Inventors:
IMANISHI YUMA
HIROTA KEI
HIROTA KEI
Application Number:
PCT/JP2021/030306
Publication Date:
March 03, 2022
Filing Date:
August 19, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
H01G9/028; H01G9/048; H01G9/052; H01G9/15
Foreign References:
| JP2012134389A | 2012-07-12 | |||
| JP2019145582A | 2019-08-29 | |||
| JP2003007571A | 2003-01-10 | |||
| JP2015073097A | 2015-04-16 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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