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Electrolyte capacitor, and method for producing same

一种电解电容器、制造方法的技术，应用在电解电容器制造、电解电容器、电容器等方向，能够解决未能获得电解电容器等问题，达到可靠性高、耐热性优良、等效串联电阻低的效果

Active Publication Date: 2014-09-10
TAYCA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in an electrolytic capacitor obtained by using such an electrolytic solution in combination with a conductive polymer, compared with an electrolytic capacitor using only a conductive polymer as an electrolyte, improvement in characteristics can be observed, but the desired desired high performance electrolytic capacitors

Method used

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  • Electrolyte capacitor, and method for producing same
  • Electrolyte capacitor, and method for producing same
  • Electrolyte capacitor, and method for producing same

Examples

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Embodiment

[0109] The following examples are given to describe the present invention more specifically, but the present invention is not limited to the contents illustrated in these examples. In addition, in the following examples etc., % when showing a concentration or usage-amount is a % based on a mass basis, unless the reference|standard is especially noted.

preparation example 1

[0112] Put 500 g of γ-butyrolactone into a 1 L beaker with a stirring device, add 50 g of hydroxybenzoic acid, 5 g of nitrophenol, and 1 g of 3-glycidoxypropyltrimethoxysilane, and stir 24 hours to prepare conductivity auxiliary solution.

[0113] The conductivity of the conductivity-assisting liquid was measured at 25° C. with a conductivity measuring device (F-55) manufactured by Horiba, Ltd., and the conductivity of the conductivity-assisting liquid was 16 μS / cm.

[0114] The above gamma-butyrolactone has a boiling point of 203°C, which is equivalent to a high-boiling organic solvent with a boiling point above 150°C. Hydroxybenzoic acid and nitrophenol are equivalent to aromatic compounds with at least one hydroxyl group. The concentration of aromatic compounds in the conductivity auxiliary liquid is about 9.9%, and the ratio of hydroxybenzoic acid to nitrophenol is 10:1 in terms of mass ratio. Moreover, 3-glycidoxypropyltrimethoxysilane is equivalent to the binder, and th...

preparation example 2

[0116] Put 500 g of γ-butyrolactone into a 1 L beaker with a stirring device, add 50 g of hydroxybenzoic acid, 10 g of nitrophenol, and 5 g of 3-glycidoxypropyltrimethoxysilane, and stir 24 hours to prepare a conductivity assisting liquid.

[0117] The conductivity of the conductivity-assisting liquid was measured at 25° C. with a conductivity measuring device (F-55) manufactured by Horiba, Ltd., and the conductivity of the conductivity-assisting liquid was 16 μS / cm.

[0118] The above gamma-butyrolactone has a boiling point of 203°C, which is equivalent to a high-boiling organic solvent with a boiling point above 150°C. Hydroxybenzoic acid and nitrophenol are equivalent to aromatic compounds with at least one hydroxyl group. The concentration of aromatic compounds in the conductivity auxiliary liquid is about 10.6%, and the ratio of hydroxybenzoic acid to nitrophenol is 5:1 in terms of mass ratio. And 3-glycidoxypropyltrimethoxysilane is equivalent to the binder, and the con...

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Abstract

The invention provides an electrolyte capacitor which has a low ESR, exhibits excellent resistance to heat, and is highly reliable under high-temperature conditions. An electrolyte capacitor is configured to contain a conductive polymer, and a conductive auxiliary liquid having a conductivity that is lower than a normal electrolyte solution. The conductive auxiliary liquid is configured to contain a high-boiling-point organic solvent having a boiling point of 150 DEG C or higher, and an aromatic compound having at least one hydroxyl group. Preferably, the aromatic compound contains an aromatic compound having at least one carboxyl group or an aromatic compound having at least one nitro group, or contains an aromatic compound having at least one carboxyl group and an aromatic compound having at least one nitro group.

Description

technical field [0001] The present invention relates to an electrolytic capacitor using a conductive polymer in combination with a conductive auxiliary liquid and a method for manufacturing the same. Background technique [0002] Conductive polymers are used as solid electrolytes for solid electrolytic capacitors such as tantalum solid electrolytic capacitors, aluminum solid electrolytic capacitors, and niobium solid electrolytic capacitors because of their high conductivity. [0003] As the conductive polymer used for this purpose, for example, a conductive polymer obtained by chemical oxidative polymerization or electrolytic oxidative polymerization of thiophene or a derivative thereof can be used. [0004] Organic sulfonic acids are mainly used as dopants in the chemical oxidation polymerization of thiophene or its derivatives, among which aromatic sulfonic acids are said to be suitable. As the oxidizing agent, transition metals are used, among which trivalent iron is sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/035H01G9/00H01G9/028
CPCH01G9/0036H01G11/04H01G9/0029H01G9/035Y10T29/417H01G9/028
Inventor 杉原良介广田兄
Owner TAYCA CORP
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