Additive for organic conductors
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsKeisuke HAYASHI, Nobuyuki MATSUZAWA, Toshiyuki TAKIZAWA, Hiroyuki MAESHIMA
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Abstract
An additive for an organic conductor has a naphthalene ring, a sulfo group bonded to the naphthalene ring, and a carboxy group bonded to the naphthalene ring. Where the carbon atom of the naphthalene ring to which the sulfo group is bonded and the carbon atom of the naphthalene ring to which the carboxy group is bonded are a first carbon atom and a second carbon atom, respectively, the number n of carbon atoms between the first carbon atom and the second carbon atom is 3 or less. This makes it possible to provide an additive that can remarkably increase moisture resistance of the organic conductor.
Claims13
An additive for an organic conductor, comprising a naphthalene compound having a naphthalene ring, a sulfo group bonded to the naphthalene ring, and a carboxy group bonded to the naphthalene ring, wherein
- a first carbon atom and a second carbon atom are adjacent to each other, or a number n of carbon atoms between the first carbon atom and the second carbon atom is 3 or less, the first carbon atom being a carbon atom of the naphthalene ring to which the sulfo group is bonded, the second carbon atom being a carbon atom of the naphthalene ring to which the carboxy group is bonded, and
- the naphthalene compound has a purity of 41 mass % or more.
An electrolytic capacitor comprising:
- an anode body including a dielectric layer on a surface thereof;
- and
- a solid electrolyte covering a portion of the dielectric layer, wherein
- the solid electrolyte contains an organic conductor,
- the organic conductor contains a conjugated polymer and a dopant,
- a naphthalene compound constitutes 80 mass % or more of the dopant,
- the naphthalene compound has a naphthalene ring, a sulfo group bonded to the naphthalene ring, and a carboxy group bonded to the naphthalene ring,
- a first carbon atom and a second carbon atom are adjacent to each other, or a number n of carbon atoms between the first carbon atom and the second carbon atom is 3 or less, the first carbon atom being a carbon atom of the naphthalene ring to which the sulfo group is bonded, the second carbon atom being a carbon atom of the naphthalene ring to which the carboxy group is bonded.
An additive for an organic conductor, wherein
- a content ratio of at least one selected from the group consisting of a 7-sulfo-2-naphthoic acid compound, a 7-sulfo-1-naphthoic acid compound, and a 6-sulfo-1-naphthoic acid compound is 80 mass % or more.
An organic conductor comprising:
- a conjugated polymer;
- and
- a dopant, wherein
- 80 mass % or more of the dopant is at least one selected from the group consisting of a 7-sulfo-2-naphthoic acid compound, a 7-sulfo-1-naphthoic acid compound, and a 6-sulfo-1-naphthoic acid compound.
Dependencies are inferred from the claim text.