SOLID ELECTROLYTIC CAPACITOR

WIPO Patent Application WO/2023/062961

A1

A solid electrolytic capacitor 10 is provided with: a plurality of capacitor elements 11 each of which has a positive electrode section 11a and a negative electrode section 11b and that are layered one on another along a first direction D1; and at least two joining sections 16 that join and electrically connect the layered positive electrode sections 11a and that extend along the first direction D1. The difference L1 - L2 between a dimension L1 [mm] of each of the positive electrode sections 11a in a third direction D3, which is orthogonal to the first direction D1 and a second direction D2 extending from the positive electrode sections 11a toward the negative electrode sections 11b, and a total dimension L2 [mm] of the maximum diameters of the joining sections 16 in the third direction D3 is 3.8 mm or less. On a prescribed cross section taken along a line orthogonal to the second direction D2 of the capacitor elements 11, the relationship b ≥ a/2 holds, where a [mm] is the maximum diameter of a joining section 16 in the third direction D3, and b [mm] is the minimum distance in the third direction D3 between the end sections of the positive electrode sections 11a and the joining section 16. This can enhance the quality of joining the positive electrode sections.

MIYAMOTO FUMIYA
ISHIZAKI KATSUHISA
NAKAMURA KOJIRO

PCT/JP2022/033014

April 20, 2023

September 01, 2022

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PANASONIC IP MAN CO LTD (JP)

H01G9/012; H01G9/048; H01G9/15

WO2017163570A1

2017-09-28

JP2000138138A	2000-05-16
JP2009094474A	2009-04-30
JP2008235412A	2008-10-02
JP2014110304A	2014-06-12
JP2010153437A	2010-07-08
JP2005051051A	2005-02-24

KAWASAKI & PARTNERS (JP)

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