Solid electrolytic capacitor

摘要

A silver paste layer constituting a collector layer in a solid electrolytic capacitor includes first silver particles having a peak particle size of 150 nm or less, second silver particles having a peak particle size of 500 nm or more, inorganic particles composed of material different from silver, and resin material. The inorganic particles are included at a volume ratio of 15% or more and 50% or less with respect to the total of the first silver particles and the second silver particles.

主权项

1. A solid electrolytic capacitor comprising:
a capacitor element having a base body composed of conductive material, a dielectric film formed on the base body, a solid electrolyte layer formed on the dielectric film, and a collector layer formed on the solid electrolyte layer and including at least a silver paste layer; wherein the silver paste layer includes: silver particles, inorganic particles composed of conductive material different from silver, and resin material, wherein a particle size distribution of the silver particles has a first peak particle size and a second peak particle size larger than the first peak particle size, wherein a particle size distribution of the inorganic particles has a third peak particle size smaller than the second peak particle size, wherein the inorganic particles are mixed with the silver particles in the silver paste layer.