Electrolytic capacitor and liquid component for electrolytic capacitor
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsYuichiro Tsubaki, Tatsuji Aoyama, Kazuyo Saito
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Abstract
An electrolytic capacitor includes a container with an opening, a capacitor element contained in the container, and a sealing body that seals the opening. The capacitor element includes an anode body provided with a dielectric layer on its surface, and a conductive polymer that covers a portion of the dielectric layer. The sealing body includes an elastic polymer. An antioxidant component is present in a space closed by the container and the sealing body. The antioxidant component includes a first antioxidant having no boiling point or a boiling point of 320° C. or higher.
Claims19
An electrolytic capacitor comprising:
- a container with an opening;
- a capacitor element and a liquid component contained in the container;
- and
- a sealing body that seals the opening,
- wherein the capacitor element includes an anode body provided with a dielectric layer on its surface, and a conductive polymer that covers a portion of the dielectric layer,
- the sealing body includes an elastic polymer,
- an antioxidant component is present in a space closed by the container and the sealing body,
- the antioxidant component includes a first antioxidant,
- the liquid component includes a non-aqueous solvent,
- the non-aqueous solvent includes at least an alcohol solvent, and
- at least a portion of the first antioxidant is present in a state of being undissolved in the liquid component.
A liquid component for an electrolytic capacitor, comprising:
- a non-aqueous solvent;
- and
- an antioxidant component,
- wherein the non-aqueous solvent includes at least an alcohol solvent,
- the antioxidant component includes a first antioxidant,
- a portion of the antioxidant component is dissolved in the non-aqueous solvent, and
- at least a portion of the first antioxidant is present in a state of being undissolved in the liquid component.
An electrolytic capacitor comprising:
- a container with an opening;
- a capacitor element contained in the container;
- and
- a sealing body that seals the opening,
- wherein the capacitor element includes an anode body provided with a dielectric layer on its surface, and a conductive polymer that covers a portion of the dielectric layer,
- the sealing body includes an elastic polymer,
- an antioxidant component is present in a space closed by the container and the
- sealing body,
- the antioxidant component includes a first antioxidant, and
- the first antioxidant is at least one selected from the group consisting of amine
- antioxidants, benzimidazole antioxidants, carotenoid compounds, water-soluble vitamins, glutathione, sesamine, melatonin, and flavonoid compounds.
A liquid component for an electrolytic capacitor, comprising:
- a non-aqueous solvent;
- and
- an antioxidant component dissolved in the non-aqueous solvent,
- wherein the non-aqueous solvent includes at least an alcohol solvent,
- the antioxidant component includes a first antioxidant, and
- the first antioxidant is at least one selected from the group consisting of amine antioxidants, benzimidazole antioxidants, carotenoid compounds, water-soluble vitamins, glutathione, sesamine, melatonin, and flavonoid compounds.
Dependencies are inferred from the claim text.