Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ELECTROLYTIC CAPACITOR AND METHOD FOR MANUFACTURING ELECTROLYTIC CAPACITOR
Document Type and Number:
WIPO Patent Application WO/2021/205893
Kind Code:
A1
Abstract:
An electrolytic capacitor 1a is provided with: a resin molding 9 comprising a capacitor element 20 and a sealing resin 8 sealing a periphery of the capacitor element 20, the capacitor element 20 comprising an anode 3 having a porous portion 3b on a surface thereof, a dielectric layer 5 provided on a surface of the porous portion 3b, and a cathode 7 opposing the anode 3 with the dielectric layer 5 therebetween, the resin molding 9 further having a first end face 9a and a second end face 9b opposing each other in a length direction L; a first external electrode 11 connected to the anode 3 exposed from the first end face 9a of the resin molding 9 and provided on the first end face 9a; and a second external electrode 13 connected to the cathode 7 exposed from the second end face 9b of the resin molding 9 and provided on the second end face 9b. When viewed from a thickness direction T orthogonal to the length direction L, the anode 3 includes a first anode region AR1 including a first outer edge 3p connected to a part of the first external electrode 11 on the first end face 9a of the resin molding 9, and a second anode region AR2 including a second outer edge 3q which is a part of an outer edge of the anode 3 which is positioned on the side closest to the second external electrode 13 in the length direction L. In a width direction W orthogonal to the length direction L and the thickness direction T, the first outer edge 3p has a length Wp greater than a length Wq of the second outer edge 3q.

Inventors:
TANAKA YASUO (JP)
Application Number:
PCT/JP2021/012580
Publication Date:
October 14, 2021
Filing Date:
March 25, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01G9/00; H01G9/048; H01G9/052; H01G9/15
Domestic Patent References:
WO2019087692A12019-05-09
WO2014188833A12014-11-27
Foreign References:
JP2018082008A2018-05-24
JPH09270360A1997-10-14
JP2006128283A2006-05-18
Attorney, Agent or Firm:
YASUTOMI & ASSOCIATES (JP)
Download PDF: