KR0169778B1 - An electrolyte for al electrolytic condenser - Google Patents
An electrolyte for al electrolytic condenser Download PDFInfo
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- KR0169778B1 KR0169778B1 KR1019950067136A KR19950067136A KR0169778B1 KR 0169778 B1 KR0169778 B1 KR 0169778B1 KR 1019950067136 A KR1019950067136 A KR 1019950067136A KR 19950067136 A KR19950067136 A KR 19950067136A KR 0169778 B1 KR0169778 B1 KR 0169778B1
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- ethylene glycol
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- electrolyte
- present
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/022—Electrolytes; Absorbents
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- Power Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
본 발명은 알루미늄 전해콘덴서용 전해액에 관한 것으로, 에틸렌 글리콜과 같은 다가 알코올과, 에테르 화합물인 에틸렌 글리콜 알킬에테르의 혼합용매에 고급 측쇄이염기성산인 1.7-옥탄디카르복실산의 암모늄염(Ammonium 1.7 -octadicarboxylate)을 용해시켜서 구성하므로써, 종래 전해액에 비하여 전도도 및 내전압이 향상되어, 하이리플용 전해콘덴서로 사용하기에 적합하다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic solution for aluminum electrolytic capacitors, and is an ammonium salt of 1.7-octanedicarboxylic acid, which is a higher branched dibasic acid, in a mixed solvent of a polyhydric alcohol such as ethylene glycol and an ethylene glycol alkyl ether which is an ether compound. By dissolving it, the conductivity and withstand voltage are improved as compared with the conventional electrolyte solution, which makes it suitable for use as an electrolytic capacitor for high ripple.
Description
본 발명은 알루미늄 전해콘덴서용 전해액에 관한 것으로, 특히 충분한 내전압을 가지면서도 전도도값이 향상되어 하이리플용 전해콘덴서의 소형화가 가능하고, 고온에서의 특성이 안정되어 사용온도범위가 확대되며, 장시간 사용가능하도록 된 알루미늄 전해콘덴서용 전해액에 관한 것이다.The present invention relates to an electrolytic solution for aluminum electrolytic capacitors, in particular, having a sufficient withstand voltage and having improved conductivity, enabling miniaturization of a high ripple electrolytic capacitor, stable at high temperatures, and an extended use temperature range. The electrolytic solution for aluminum electrolytic capacitors made possible.
일반적으로 알루미늄 전해콘덴서는 전극으로 알루미늄 박판을 사용하고, 전해질로서 암모늄에 염류와 쌍극성 유기용매에 용해된 유기산으로 구성되어 있는 액체 전해질을 사용하여 단위면적당 정전용량이 높아 부품의 소형, 고용량화에 적합한 콘덴서이다.In general, aluminum electrolytic capacitors use aluminum thin plates as electrodes, and liquid electrolytes composed of salts in ammonium and organic acids dissolved in bipolar organic solvents as electrolytes, and have high capacitance per unit area. It is a capacitor.
이러한 알루미늄 전해콘덴서의 전해액으로 에틸렌글리콜, 글리세린, 붕산, 암모니아수등으로 된 페이스트를 사용하여 대용량콘덴서에 주로 사용되고 있으나, 주파수특성이나 온도특성이 나쁘고 누설전류, 유전체손실이 클 뿐만아니라, 정격전압을 초과하는 고압을 인가하게 되면 안전밸브가 찢어져서 가스화된 전해액이 외부로 분출되는 등 문제점이 있어 주로 저주파 전력회로등을 중심으로 사용되어 왔다.The electrolyte of this aluminum electrolytic capacitor is mainly used for large capacity capacitors using paste made of ethylene glycol, glycerin, boric acid, ammonia water, etc., but its frequency characteristics, temperature characteristics are bad, leakage current and dielectric loss are large, and it exceeds the rated voltage. When the high pressure is applied, the safety valve is torn off and the gasified electrolyte is ejected to the outside, which has been mainly used for low frequency power circuits.
그리고, 종래에 주로 사용되는 알루미늄 전해 콘덴서용 전해액으로, 에틸렌글리콜 용매에 용질로서 붕산 또는 붕산암모늄을 용해시킨 전해액이 있으나, 이 전해액은 장시간 사용하게 되면 에스테르화 반응이 일어나며 이에 따라 다량의 수분이 발생하게 되어 고온중에서 증기압이 높아지게 되는 문제점이 있다.In addition, conventionally used electrolyte solution for aluminum electrolytic capacitors, there is an electrolyte solution in which boric acid or ammonium borate is dissolved as a solute in an ethylene glycol solvent, but this electrolyte solution causes esterification reaction when a long time is used, and thus a large amount of water is generated. There is a problem that the vapor pressure is increased at high temperatures.
또한 상기한 문제점을 해결하기 위해 에틸렌 글리콜 용매에 아제라인산 또는 세바틴산의 암모늄염을 용해시켜 사용하기도 하나, 이러한 전해액은 용매에 대한 용질의 용해도가 낮아 전도도를 향상시키기 어려운 문제점이 있다.In addition, in order to solve the above problems, one may be used by dissolving the ammonium salt of azaline acid or sebatinic acid in an ethylene glycol solvent, such an electrolyte has a problem that it is difficult to improve the conductivity because the solubility of the solvent in the solvent is low.
이에 본 발명은 상기한 제문제점을 해결하기 위한 것으로, 충분한 내전압을 가지면서도 전도도값이 향상되어 하이리플용 전해콘덴서의 소형화가 가능하고, 고온에서의 특성이 안정되어 사용온도범위가 확대되며, 장시간 사용가능하도록 된 알루미늄 전해콘덴서용 전해액을 제공하는데 그 목적이 있다.Accordingly, the present invention has been made to solve the above-mentioned problems, the conductivity value is improved while having sufficient withstand voltage, so that the miniaturization of the electrolytic capacitor for high ripple is possible, and the characteristics at high temperature are stable, and the use temperature range is extended, It is an object of the present invention to provide an electrolytic solution for an aluminum electrolytic capacitor that has become usable.
상기한 목적을 달성하기 위한 본 발명은, 에틸렌글리콜과 같은 다가 알코올과, 에테르 화합물인 에틸렌글리콜 알킬에테르의 혼합용매에 고급 측쇄이염기성산인 1.7-옥탄디카르복실산의 암모늄염(Ammonium 1.7-octadicarboxylate)을 용해시켜서 구성하였다.The present invention for achieving the above object is an ammonium salt of 1.7-octanedicarboxylic acid, which is a higher branched dibasic acid, in a mixed solvent of a polyhydric alcohol such as ethylene glycol and ethylene glycol alkyl ether which is an ether compound. It was made by dissolving.
본 발명에 따른 알루미늄 전해콘덴서용 전해액은, 에틸렌 글리콜 55~70중량%, 에틸렌 글리콜 부틸에테르 20~40중량%, 암모늄 1.7 옥탄디카르복실산 5~12중량%로 이루어진다.The electrolyte solution for aluminum electrolytic capacitors according to the present invention is composed of 55 to 70% by weight of ethylene glycol, 20 to 40% by weight of ethylene glycol butyl ether, and 5 to 12% by weight of ammonium 1.7 octanedicarboxylic acid.
상기한 조성으로 이루어진 전해액은 종래의 전해액보다 내전압 과전도도가 향상됨과 아울러 고온에서의 물리화학적 특성도 안정되어 사용온도범위도 확대되는 효과가 있다.The electrolytic solution having the above composition has an effect of increasing the withstand voltage overconductivity than the conventional electrolytic solution, and also has a stable physical and chemical properties at a high temperature, thereby extending the use temperature range.
이하, 본 발명을 실시예를 참조하여 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to Examples.
본 발명에 따른 실시예의 전해액은, 에틸렌 글리콜 60중량%, 에틸렌 글리콜 부틸에테르 30중량%, 암모늄 1.7 옥탄디카르복실산 10 중량%를 용해하여 준비하였다.The electrolyte solution of the example according to the present invention was prepared by dissolving 60% by weight of ethylene glycol, 30% by weight of ethylene glycol butyl ether, and 10% by weight of ammonium 1.7 octanedicarboxylic acid.
그리고 비교되는 종래예의 전해액은, 에틸렌 글리콜 90중량%, 암모늄세바게이트 10중량%를 용해하여 준비하였다.And the electrolyte solution of the conventional example compared was prepared by melt | dissolving 90 weight% of ethylene glycol and 10 weight% of ammonium sebagate.
그리하여 상기한 실시예와 종래예를 각각 25℃의 측정온도에서, TOA사 제품의 CM-8ET 전도도계를 사용하여 전도도를 측정하고, 내전압은 시료 1㎤당 1㎃를 인가하여 측정하여 그 결과를 다음 표 1에 나타내었다.Thus, the above-described Examples and Conventional Examples were measured at a measurement temperature of 25 ° C., respectively, using a CM-8ET conductivity meter manufactured by TOA, and the withstand voltage was measured by applying 1 mA per 1 cm 3 of sample. It is shown in Table 1 below.
상기 표 1에서 본 발명에 따른 실시예의 물리적특성은 전도도 1.21mS/cm, 내전압은 480v를 나타내었는데 비하여 종래예의 물리적 특성은 전도도는 1.20mS/cm, 내전압은 460v를 나타내었다.In Table 1, the physical properties of the embodiment according to the present invention showed a conductivity of 1.21 mS / cm and a withstand voltage of 480v, whereas the physical properties of the conventional example showed a conductivity of 1.20mS / cm and a breakdown voltage of 460v.
상기의 결과 본 발명의 알루미늄 전해콘덴서용 전해액은 종래 전해액에 비하여 전도도 및 내전압이 향상되어 하이리플용 전해콘덴서용도로 적합하다.As a result of the above, the electrolytic solution for aluminum electrolytic capacitor of the present invention is improved in conductivity and withstand voltage as compared to the conventional electrolytic solution, and is suitable for high ripple electrolytic capacitor use.
이상에서 서술된 것은 모든 점에서 단순한 예시에 불과한 것이고, 이를 가지고 한정적으로 해석해서는 안되며, 단지 본 발명의 진정한 정신 및 범위내에 존재하는 변형예는 모두 본 발명의 청구범위에 속하는 것이다.What has been described above is merely a mere example in all respects, and should not be construed as limited thereto, and all modifications existing within the true spirit and scope of the present invention shall fall within the claims of the present invention.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950067136A KR0169778B1 (en) | 1995-12-29 | 1995-12-29 | An electrolyte for al electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950067136A KR0169778B1 (en) | 1995-12-29 | 1995-12-29 | An electrolyte for al electrolytic condenser |
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| Publication Number | Publication Date |
|---|---|
| KR970051533A KR970051533A (en) | 1997-07-29 |
| KR0169778B1 true KR0169778B1 (en) | 1999-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019950067136A KR0169778B1 (en) | 1995-12-29 | 1995-12-29 | An electrolyte for al electrolytic condenser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100462080B1 (en) * | 2002-12-11 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
| KR100462075B1 (en) * | 2002-12-06 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
-
1995
- 1995-12-29 KR KR1019950067136A patent/KR0169778B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100462075B1 (en) * | 2002-12-06 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
| KR100462080B1 (en) * | 2002-12-11 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
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| Publication number | Publication date |
|---|---|
| KR970051533A (en) | 1997-07-29 |
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