Nippon Chemi-con Corporation

Shogo Aizawa

Atsushi Yoshizawa

Tomohiro Matsuzaki

Hidehiko Itoh

Atsushi Yamada

Katsumi Abe

Naoki Anzai

Norihito Fukui

A production method for an electronic component using an exterior packaging material containing a silicone resin comprises a step of dipping an element into an exterior packaging material containing a silicone resin to which aluminum hydroxide or magnesium hydroxide and a nonpolar solvent are added, an additive amount of the aluminum hydroxide or the magnesium hydroxide being controlled to a range of 60 [wt. %] or more to less than 70 [wt. %], a step of drying the exterior packaging material formed on a surface of the element to evaporate the nonpolar solvent and cause a silicone resin component to appear on a surface of the exterior packaging material, and a curing step of curing the exterior packaging material.

Electronic component and production method therefor

A cathode foil and an anode foil, with an oxidized film layer formed on the surface and a separator interposed therebetween, are wound together to form a capacitor element, and prior to subjecting the capacitor element to chemical repair the content of the binder in the separator is adjusted to 10 to 20% with respect to the total weight of the separator. After the chemical repair, the capacitor element is immersed in mixed liquid prepared by mixing a polymerizable monomer and an oxidizing agent together with a predetermined solvent, a polymerization reaction of the electroconductive polymer is induced in the capacitor element, and a solid electrolyte layer is formed. The capacitor element is then inserted in an outer case; sealing rubber is mounted in the open-end portion and sealed with a tightening operation; and the unit is thereafter aged to form a solid electrolytic capacitor.

Solid electrolytic capacitor and manufacturing method thereof

Negative electrode foil and positive electrode foil having an oxide coating layer formed on the surface thereof with a separator, the separator containing a binder constituted of a compound having a vinyl group, interposed therebetween are wound up to thereby form a capacitor element. The content of binder in the separator is adjusted to 10&#x2013;20% based on the total weight of separator before subjecting the capacitor element to restoration and chemical conversion. After the restoration and chemical conversion, the capacitor element is immersed in a liquid mixture prepared by mixing a polymerizable monomer, an oxidizer and a given solvent together so that polymerization reaction of conductive polymer is effected in the capacitor element to thereby form a solid electrolyte layer. The thus obtained capacitor element is inserted in a sheath case, and its opening end is fitted with sealing rubber. Sealing is accomplished by fastening operation, and aging is performed. Thus, a solid electrolytic capacitor is obtained.

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Ome, Japan

Shogo Aizawa