KR0138011B1 - Electrolyte of aluminium electrolytic condenser - Google Patents
Electrolyte of aluminium electrolytic condenserInfo
- Publication number
- KR0138011B1 KR0138011B1 KR1019940020900A KR19940020900A KR0138011B1 KR 0138011 B1 KR0138011 B1 KR 0138011B1 KR 1019940020900 A KR1019940020900 A KR 1019940020900A KR 19940020900 A KR19940020900 A KR 19940020900A KR 0138011 B1 KR0138011 B1 KR 0138011B1
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- Prior art keywords
- electrolyte
- ammonium
- electrolytic capacitor
- present
- electrolytic
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Abstract
본 발명은 알루미늄 전해콘덴서의 고압용 전해액에 관한 것으로, 특히 충분한 내전압을 가지면서 전해액의 전도도값이 향상되어 하이리플용 소형화 제품의 제작이 가능하며 장시간 사용가능한 전해콘덴서용 전해액에 관한 것이다.The present invention relates to an electrolytic solution for high pressure of an aluminum electrolytic capacitor, and more particularly, to an electrolytic capacitor for an electrolytic capacitor capable of producing a miniaturized product for a high ripple having a sufficient withstand voltage, thereby improving the conductivity value of the electrolytic solution.
본 발명의 전해액은 에틸렌 글리콜 용매에 고급의 측쇄 이염기성산인 암모늄-2-부틸옥탄디오에이트 6∼10%와 오붕산 암모늄 2∼4%을 혼합하여 용질로 사용하고 인산수소의 암모늄과 같은 인산염을 0.5∼1% 파라니트로 벤질알콜을 0.5∼1% 용해시켜 전해액을 구성한다.The electrolyte of the present invention is used as a solute by mixing 6-10% of ammonium-2-butyloctanedioate, which is a high-quality branched dibasic acid, and 2-4% of ammonium pentaborate in an ethylene glycol solvent, and using a phosphate salt such as ammonium hydrogen phosphate. 0.5-1% paranitrobenzyl alcohol is dissolved in 0.5-1% to form an electrolyte solution.
Description
본 발명은 알루미늄 전해콘덴서의 고압용 전해액에 관한 것으로, 특히 충분한 내전압을 가지면서 전해액의 전도도값이 향상되어 하이리플(High Ripple)용 소형화 제품의 제작이 가능하며, 고온에서 특성이 안정되어 사용온도 범위가 확대되고 장시간 사용 가능한 전해콘덴서용 전해액에 관한 것이다.The present invention relates to an electrolytic solution for high pressure of an aluminum electrolytic capacitor, and in particular, having a sufficient withstand voltage, the conductivity value of the electrolytic solution is improved, so that a miniaturized product for high ripple can be manufactured, and the characteristics are stable at high temperatures, and thus the operating temperature. The present invention relates to an electrolytic capacitor electrolytic solution which has an extended range and can be used for a long time.
종래 고압용 콘덴서에 사용된 전해액은 에틸렌 글리콜을 주체로 한 용매에 아제라인산(Azelaic acid), 세바틴산(Sebacic acid)등과 같은 고급의 직쇄 이염기성산 같은 유기산과 붕산(Boric acid) 등과 같은 무기산 또는 상기 산들의 암모늄 염을 용질로써 용해시켜 사용하였다.Conventional electrolytes used in high pressure condensers are organic solvents such as boric acid and organic acids such as high-quality straight-chain dibasic acids such as azelaic acid and sebacic acid in solvents mainly composed of ethylene glycol. The ammonium salt of the acids was used as a solute.
그러나, 상기와 같이 전해액을 구성하면 에틸렌 글리콜에 대한 용질들의 용해도가 작아 100℃ 이상의 고온에서 장시간 전해액을 제조해야 하는 결점과 전해콘덴서 제작후 고온하에서 장시간 사용시 에틸렌 글리콜 용매와 용질 사이에 에스테르화 반응이 진행된다.However, when the electrolyte is composed as described above, the solubility of the solutes in ethylene glycol is small, and there is a drawback of preparing the electrolyte solution for a long time at a high temperature of 100 ° C. or higher, and the esterification reaction between the ethylene glycol solvent and the solute when used for a long time at high temperature after the preparation of the electrolytic capacitor is performed. Proceed.
상기 반응에 따라 생성된 물과 전극박의 반응으로 콘덴서 제품의 용량감소, tanδ(손실) 증대의 특성 열화 원인이 되고, 아울러 콘덴서의 내압상승으로 케이스의 방폭변이 작동되는 결점이 있다.The reaction of water and the electrode foil produced by the above reaction causes the deterioration of the capacity of the condenser product and the increase of tan δ (loss), and the explosion-proof side of the case is operated due to the increase in the pressure resistance of the condenser.
따라서, 본 발명은 상기의 문제점을 해결하기 위해 창출한 것이다.Therefore, the present invention has been created to solve the above problems.
본 발명의 목적은 상기와 같은 문제를 해결하기 위하여 무기산 또는 고급의 직쇄이염기성산의 암모늄 염을 에틸렌 글리콜 용매에 용해시켜 사용하는 방법 대신에 고급의 측쇄(분기형)염기성산 또는 그 염과 무기산 또는 그 염을 소량 혼합하여 에틸렌 글리콜에 용해시키고 콘덴서 수명을 향상시키기 위하여 전기음성도가 큰 니트로 화합물과 인산염을 첨가한 고신뢰성 전해액을 제공하고자 하는 것이다.It is an object of the present invention to solve the above problems, instead of dissolving an ammonium salt of an inorganic acid or a higher linear dibasic acid in an ethylene glycol solvent, a higher side chain (branched) basic acid or a salt thereof and an inorganic acid. Alternatively, a small amount of salts are mixed to dissolve in ethylene glycol and to improve the life of the condenser, and to provide a highly reliable electrolyte solution containing a high electronegativity nitro compound and phosphate.
본 발명을 실시예를 참조하여 하기에 상세히 설명한다.The present invention is described in detail below with reference to Examples.
[실시예]EXAMPLE
본 발명의 전해액은 에틸렌 글리콜 용매에 용질로 고급의 측쇄 이염기성산인 암모늄-2-부틸옥탄디오에이트(Ammonium-2-Buthyl-octandioate) 6-10%와 오붕산 암모늄(Ammonium penta Borate) 2-4%을 일정비율로 혼합하여 용해시키고, 피막의 내수성 및 콘덴서의 내압을 상승시키기 위하여 인산수소 이암모늄염과 같은 인산염을 0.5%, 니트로 화합물인 파라니트로 벤질 알콜을 0.5-1%을 용해시켜 첨가하여 전해액을 구성한다.The electrolyte solution of the present invention is 6-10% of ammonium-2-Buthyl-octandioate and ammonium pentaborate 2-4, which are high-level branched dibasic acids as a solute in an ethylene glycol solvent. % Is dissolved by mixing in a certain ratio, and in order to increase the water resistance of the film and the internal pressure of the condenser, 0.5% of phosphate such as diammonium hydrogen phosphate and 0.5-1% of paranitrobenzyl alcohol, a nitro compound, are dissolved and added to the electrolyte solution. Configure
종해 전해액 및 본 발명의 전해액 구성과 그 특성을 아래 표 1에 나타낸다.The composition of the seed electrolyte solution and the electrolyte solution of the present invention and their properties are shown in Table 1 below.
*특성 측정온도:25℃* Characteristic measurement temperature: 25 ℃
표 1과 같이 본 발명의 전해액은 종래의 전해액과 비교하여 내전압이 저하되지 않고 전도도가 상승되어 특성이 향상된 400V까지의 콘덴서 제품화가 가능하다.As shown in Table 1, the electrolytic solution of the present invention is capable of commercializing a capacitor up to 400V, which has improved conductivity without increasing the breakdown voltage as compared with the conventional electrolyte.
종래 및 본 발명의 전해액을 이용하여 400V-10μF의 전해콘덴서 제품을 제조하여 그 특성을 표 2에 표시한다.The electrolytic capacitor product of 400V-10μF was manufactured using the electrolytic solution of the prior art and this invention, and the characteristic is shown in Table 2.
고온부하 시험은 105℃ 500시간 동안 400V의 정격 전압을 인가하여 얻은 결과이며 상기의 결과는 시료수 20개의 평균치이다.The high temperature load test was obtained by applying a rated voltage of 400V for 500 hours at 105 ° C. The above result is an average value of 20 samples.
본 발명의 전해액을 사용하면 종래의 전해액에 비교하여 제품의 초기특성 및 고온부하 시험특성이 모두 향상되었으며, 특히 제품의 손실(tanδ)이 종래의 전해액에 비교하여 1/2 정도로 소형화 및 하이리플용 전해콘덴서의 제조가 가능하다.When the electrolyte solution of the present invention is used, both the initial characteristics and the high temperature load test characteristics of the product are improved compared to the conventional electrolyte solution, and in particular, the loss (tanδ) of the product is reduced to about 1/2 compared to the conventional electrolyte solution It is possible to manufacture an electrolytic capacitor.
Claims (1)
Priority Applications (1)
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KR1019940020900A KR0138011B1 (en) | 1994-08-24 | 1994-08-24 | Electrolyte of aluminium electrolytic condenser |
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KR1019940020900A KR0138011B1 (en) | 1994-08-24 | 1994-08-24 | Electrolyte of aluminium electrolytic condenser |
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KR0138011B1 true KR0138011B1 (en) | 1998-06-15 |
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KR1019940020900A KR0138011B1 (en) | 1994-08-24 | 1994-08-24 | Electrolyte of aluminium electrolytic condenser |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100561266B1 (en) * | 2004-03-25 | 2006-03-14 | 파츠닉(주) | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
KR100616703B1 (en) * | 2004-03-25 | 2006-08-28 | 대우전자부품(주) | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
KR100676539B1 (en) * | 2004-03-25 | 2007-01-30 | 대우전자부품(주) | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
-
1994
- 1994-08-24 KR KR1019940020900A patent/KR0138011B1/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100561266B1 (en) * | 2004-03-25 | 2006-03-14 | 파츠닉(주) | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
KR100616703B1 (en) * | 2004-03-25 | 2006-08-28 | 대우전자부품(주) | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
KR100676539B1 (en) * | 2004-03-25 | 2007-01-30 | 대우전자부품(주) | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
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