KR100215385B1 - An electrolyte for al electrolytic condenser - Google Patents
An electrolyte for al electrolytic condenser Download PDFInfo
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- KR100215385B1 KR100215385B1 KR1019960072046A KR19960072046A KR100215385B1 KR 100215385 B1 KR100215385 B1 KR 100215385B1 KR 1019960072046 A KR1019960072046 A KR 1019960072046A KR 19960072046 A KR19960072046 A KR 19960072046A KR 100215385 B1 KR100215385 B1 KR 100215385B1
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- South Korea
- Prior art keywords
- weight
- electrolyte
- ammonium
- ethylene glycol
- electrolytic
- Prior art date
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- 239000003792 electrolyte Substances 0.000 title abstract description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 14
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 12
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 claims abstract description 7
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims abstract description 7
- ZKMGPKSXNVSNCU-UHFFFAOYSA-N azanium;8-butoxy-8-oxooctanoate Chemical compound [NH4+].CCCCOC(=O)CCCCCCC([O-])=O ZKMGPKSXNVSNCU-UHFFFAOYSA-N 0.000 claims description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 5
- TYFQFVWCELRYAO-UHFFFAOYSA-N suberic acid Chemical compound OC(=O)CCCCCCC(O)=O TYFQFVWCELRYAO-UHFFFAOYSA-N 0.000 abstract description 4
- 239000002253 acid Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 150000002828 nitro derivatives Chemical class 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- ACVYVLVWPXVTIT-UHFFFAOYSA-M phosphinate Chemical compound [O-][PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-M 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-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
- H01G9/02—Diaphragms; Separators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
본 발명은 알루미늄 전해콘덴서용 전해액에 관한 것으로, 에틸렌 글리콜 86 - 93 중량%, 암모늄 이부틸 옥탄디오에이트 4.5 - 8.4 중량%, 암모늄 세바케이트 2.5 - 4.6 중량%, 차아인산(hypophosphorous acid) 0.3 - 0.6 중량%로 구성되어, 충분한 내전압을 가지면서 전해액의 전도도값이 향상되어 하이리플용 전해콘덴서의 소형화가 가능하고, 고온에서의 특성이 안정되어 사용온도범위가 확대되며, 장시간 사용가능하도록 된 것이다.The present invention relates to an electrolytic solution for aluminum electrolytic capacitors, comprising 86-93% by weight of ethylene glycol, 4.5-8.4% by weight of ammonium ibutyl octanedioate, 2.5-4.6% by weight of ammonium sebacate, and hypophosphorous acid 0.3-0.6. Consisting of the weight percent, the conductivity value of the electrolyte is improved while having a sufficient withstand voltage, it is possible to miniaturize the electrolytic capacitor for high-ripple, stable at high temperature characteristics to expand the use temperature range, it is possible to use for a long time.
Description
본 발명은 알루미늄 전해콘덴서용 전해액에 관한 것으로, 특히 충분한 내전압을 가지면서 전해액의 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 an aluminum electrolytic capacitor, and in particular, has a sufficient withstand voltage, and the conductivity value of the electrolytic solution is improved, so that the miniaturization of the high ripple electrolytic capacitor is possible, and the characteristics at high temperatures are stable, thereby extending the use temperature range. The present invention relates to an electrolytic solution for aluminum electrolytic capacitors that has been made available for a long time.
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.
상기한 콘덴서중 고압용 콘덴서에 사용되는 전해액은 에틸렌 글리콜을 주체로한 용매에 아제라인산(Azelaic acid) 또는 세바틴산(Sebatic acid)과 같은 고급의 직쇄 이염기성산 또는 상기한 산의 암모늄염을 용질로하고 전해콘덴서의 수명 특성을 개선하기 위해 파라니트로페놀(p-nitrophenol)과 같은 니트로 화합물을 첨가하여 구성하였다.Among the condensers, the electrolytic solution used for the high pressure condenser is composed of a high-quality straight-chain dibasic acid such as azelaic acid or sebatic acid or an ammonium salt of the above acid in a solvent mainly composed of ethylene glycol. In order to improve the life characteristics of the electrolytic capacitor was configured by adding a nitro compound such as paranitrophenol (p-nitrophenol).
그러나, 이러한 조성의 전해액은 에틸렌 글리콜에 대한 이염기성산 및 그 염들의 용해도가 작아 100℃이상의 고온에서 장시간 제조하여야 하는데, 고온 장시간 제조에 따른 전해액의 전도도 감소 및 전해콘덴서 제조후 장시간 사용할 때 전해액과 알루미늄 전극과의 반응에 따른 수소가스가 발생되어 콘덴서의 수명이 단축되는 문제점이 있었고, 이를 보완하기 위해 니트로 화합물을 첨가할 때 전해액의 전도도 감소 및 내전압이 감소하는 문제점이 있었다.However, the electrolyte of this composition has to be prepared for a long time at a high temperature of 100 ℃ or more because the solubility of dibasic acid and salts thereof in ethylene glycol is low, the conductivity of the electrolyte according to the high temperature for a long time production and the electrolyte when used for a long time after the production of the electrolytic capacitor There was a problem that the life of the capacitor is shortened by the generation of hydrogen gas due to the reaction with the aluminum electrode, there was a problem that the conductivity of the electrolyte decreases and the withstand voltage decreases when the nitro compound is added to compensate for this.
본 발명은 상기한 문제점을 해결하기 위한 것으로, 충분한 내전압을 가지게 되어 하이리플용 전해콘덴서의 소형화가 가능하고, 고온에서의 특성이 안정되어 사용온도범위가 확대되며, 장시간 사용가능하도록 된 알루미늄 전해콘덴서용 전해액을 제공하는 데 그 목적이 있다.The present invention has been made to solve the above problems, has a sufficient withstand voltage, it is possible to miniaturize the electrolytic capacitor for high-ripple, stable at high temperatures, the use temperature range is expanded, and the aluminum electrolytic capacitor is to be used for a long time The purpose is to provide a solution.
상기한 목적을 달성하기 위한 본 발명의 알루미늄 전해콘덴서용 전해액은, 에틸렌 글리콜 86 - 93 중량%, 암모늄 이부틸 옥탄디오에이트 4.5 - 8.4 중량%, 암모늄 세바케이트 2.5 - 4.6 중량%, 차아인산(hypophosphorous acid) 0.3 - 0.6 중량%로 이루어진다.The electrolyte solution for aluminum electrolytic capacitors of the present invention for achieving the above object, ethylene glycol 86-93% by weight, ammonium ibutyl octanedioate 4.5- 8.4% by weight, ammonium sebacate 2.5-4.6% by weight, hypophosphorous acid) 0.3-0.6 wt%.
상기한 조성의 전해액을 콘덴서에 적용시킨 결과, 에틸렌 글리콜 용매에 대한 고급의 직쇄 이염기성산의 용해도가 4 - 9% 가량의 암모늄 이부틸 옥탄디오에이트가 첨가되어 증가되었고, 또한 전해액의 전도도가 향상되었으며, 전해액의 화성성도 증대되었다. 그리고 알루미늄 전극의 손상된 피막을 복구시킬 수 있는 차아인산이 첨가되어 콘덴서의 수명을 연장할 수 있게 되었다.As a result of applying the electrolyte of the above composition to the condenser, the solubility of the high-quality linear dibasic acid in the ethylene glycol solvent was increased by adding 4-9% of ammonium butyl octanedioate, and the conductivity of the electrolyte was also improved. The chemical composition of the electrolyte was also increased. In addition, hypophosphorous acid, which can recover the damaged film of the aluminum electrode, is added to extend the life of the condenser.
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 88.6 중량%, 암모늄 이부틸 옥탄디오에이트 7.8 중량%, 암모늄 세바케이트 3.2 중량%, 차아인산 0.4 중량%의 조성으로 구성하였다.The electrolyte solution of the embodiment according to the present invention was composed of 88.6% by weight of ethylene glycol, 7.8% by weight of ammonium ibutyl octanedioate, 3.2% by weight of ammonium sebacate, and 0.4% by weight of hypophosphorous acid.
그리고 비교되는 종래의 전해액은, 에틸렌 글리콜 89 중량%, 암모늄 세바케이트 10 중량%, 파라니트로페놀 1 중량%의 조성으로 구성하였다.And the conventional electrolyte solution compared was comprised with the composition of 89 weight% of ethylene glycol, 10 weight% of ammonium sebacate, and 1 weight% of paranitrophenol.
그리하여 상기한 실시예와 종래예를 각각 25℃의 측정온도에서 TOA사 제품의 CM-8ET 전도도계를 사용하여 전도도를 측정하고, 내전압은 시료 1 cm2당 1 mA 를 인가하여 측정한 결과를 다음 표 1에 나타내었다.Thus, the above-described examples and conventional examples were measured using a CM-8ET conductivity meter manufactured by TOA Co., Ltd. at a measurement temperature of 25 ° C., respectively, and the withstand voltage was measured by applying 1 mA per 1 cm 2 of the sample. Table 1 shows.
상기 표 1에서 본 발명에 따른 실시예의 물리적특성은 전도도 1.35mS/cm, 내전압 468V를 나타내었는데 비하여 종래예의 물리적특성은 전도도 1.20mS/cm, 내전압 460V를 나타내었다.In Table 1, the physical properties of the embodiment according to the present invention showed a conductivity of 1.35 mS / cm and a withstand voltage of 468 V, whereas the physical properties of the prior art showed a conductivity of 1.20 mS / cm and a breakdown voltage of 460 V.
상기한 결과에 따르면 본 발명의 알루미늄 전해콘덴서용 전해액은 종래 전해액에 비하여 전도도와 내전압이 향상되어 하이리플용 전해콘덴서용으로 적합하다는 결론을 얻을 수 있다.According to the above results, it can be concluded that the electrolyte solution for aluminum electrolytic capacitors of the present invention is improved for conductivity and withstand voltage as compared to the conventional electrolyte solution and is suitable for high ripple electrolytic capacitors.
그리고, 차아인산이 소량 첨가되므로써 콘덴서를 장시간 사용하더라도 알루미늄 전극의 산화피막열화를 방지할 수 있게되어, 수명을 연장할 수 있게 된다.And since a small amount of hypophosphorous acid is added, even if a capacitor is used for a long time, the oxide film deterioration of an aluminum electrode can be prevented, and life can be extended.
따라서, 본 발명의 알루미늄 전해콘덴서용 전해액은 고신뢰성의 하이리플용 고압 전해콘덴서에 적합하게 되는 것이다.Therefore, the electrolyte solution for aluminum electrolytic capacitors of the present invention is suitable for high reliability high pressure electrolytic capacitors for high ripple.
본 발명의 효과는 에틸렌 글리콜 용매에 대한 고급의 직쇄 이염기성산의 용해도가 4 - 9% 가량의 암모늄 이부틸옥탄디오에이트가 첨가되어 증가되었고, 또한 전해액의 전도도가 향상되었으며, 전해액의 화성성도 증대되었을 뿐만 아니라 알루미늄 전극의 손상된 피막을 복구시킬 수 있는 차아인산이 첨가되어 콘덴서의 수명을 연장할 수 있게 되었다는 것이다.The effect of the present invention was that the solubility of the high-quality straight-chain dibasic acid in ethylene glycol solvent was increased by adding 4-9% of ammonium butyloctanedioate, and the conductivity of the electrolyte was improved, and the chemical composition of the electrolyte was also increased. In addition, hypophosphorous acid is added to restore the damaged film of the aluminum electrode, which can extend the life of the capacitor.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960072046A KR100215385B1 (en) | 1996-12-26 | 1996-12-26 | An electrolyte for al electrolytic condenser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019960072046A KR100215385B1 (en) | 1996-12-26 | 1996-12-26 | An electrolyte for al electrolytic condenser |
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| Publication Number | Publication Date |
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| KR19980053010A KR19980053010A (en) | 1998-09-25 |
| KR100215385B1 true KR100215385B1 (en) | 1999-08-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1019960072046A KR100215385B1 (en) | 1996-12-26 | 1996-12-26 | An electrolyte for al electrolytic condenser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100462075B1 (en) * | 2002-12-06 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100561264B1 (en) * | 2004-03-25 | 2006-03-14 | 파츠닉(주) | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
| KR100616700B1 (en) * | 2004-03-25 | 2006-08-28 | 대우전자부품(주) | Electrolyte of aluminium condenser for sound machinery |
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1996
- 1996-12-26 KR KR1019960072046A patent/KR100215385B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100462075B1 (en) * | 2002-12-06 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
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| KR19980053010A (en) | 1998-09-25 |
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