KR0137998B1 - Electrolyte for aluminum electrolytic condenser - Google Patents
Electrolyte for aluminum electrolytic condenserInfo
- Publication number
- KR0137998B1 KR0137998B1 KR1019940020899A KR19940020899A KR0137998B1 KR 0137998 B1 KR0137998 B1 KR 0137998B1 KR 1019940020899 A KR1019940020899 A KR 1019940020899A KR 19940020899 A KR19940020899 A KR 19940020899A KR 0137998 B1 KR0137998 B1 KR 0137998B1
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- electrolyte solution
- present
- electrolytic capacitor
- electrolyte
- 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 글린콜에 1∼3% 정도의 물이 혼합된 용매에 고급의 이염기성산인 암모늄 - 2 - 부틸옥탄디오에이트를 6∼10% 용해시키고 다가알콜류를 1∼3%와 파라니트로 벤질 알콜을 0.1∼1% 용해시켜 전해액을 구성한다.The electrolyte solution of the present invention dissolves 6-10% of a high dibasic acid, ammonium-2-butyloctanedioate, in a solvent in which about 1% to 3% of water is mixed with ethylene glycol, and 1 to 3% of polyhydric alcohols and para. Nitrobenzyl alcohol is dissolved in an amount of 0.1 to 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 주체로한 용매에 아제라인사(Azelaic acid), 세바틴산(Sebacic acid)등과 같은 고급의 직쇄 이염기성산 같은 유기산과 붕산(Boric acid) 등과 같은 무기산 또는 상기 산의 암모늄 염을 용질로써 용해시켜 사용하였다.Conventional electrolytes used in high pressure condensers are organic solvents such as high-quality straight-chain dibasic acids such as azelaic acid, sebacic acid, and inorganic acids such as boric acid in solvents mainly composed of ethylene glycol. The ammonium salt of the acid was used as a solute.
그러나, 상기와 같이 전해액을 구성하면 에틸렌 글리콜에 대한 이염기성산 및 그 염들의 용해도가 작아 100℃ 이상의 고온에서 장시간 전해액을 제조해야 하는 결점과 전해콘덴서 제작후 고온하에서 장시간 사용할 때 에틸렌 글리콜 용매와 이염기성산의 용질과의 사이에 에스테르화 반응이 진행된다.However, if the electrolyte solution is constituted as described above, the solubility of dibasic acid and salts thereof 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. The esterification reaction proceeds with the solute of the acid.
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 고급의 직쇄이염기성산 또는 그염을 에텔렌 글리콜 용매에 용해시켜 전해액을 구성하는 방법 대신에 고급의 측쇄(분기형) 이염기성산 암모늄염을 에틸렌 글리콜에 소량의 물이 첨가된 혼합 용매에 용해시켜 용매에 대한 용질의 용해도 향상과 전해액의 전도도를 향상시키는 고신뢰성을 가지는 전해액을 제공하고자 하는 것이다.An object of the present invention is to solve the above problems, instead of dissolving high-grade linear dibasic acids or salts thereof in ethylene glycol solvent to form an electrolyte solution, high-level branched (branched) dibasic ammonium dibasic acid ammonium salts are ethylene glycol. The present invention is to provide an electrolyte solution having high reliability by dissolving in a mixed solvent in which a small amount of water is added to improve solubility of the solute in the solvent and to improve conductivity of the electrolyte solution.
본 발명은 실시예를 참조하여 상세히 설명한다.The invention is explained in detail with reference to the examples.
[실시예]EXAMPLE
본 발명의 전해액은 에틸렌 글리콜에 소량의 물(H2O)을 1-3% 정도의 소량의 물(H2O)을 첨가한 혼합용매에 고급의 측쇄 이염기성산인 암모늄 -2- 부틸옥탄디오에티(Ammonium - 2 - Buthy1 - octandioate) 6-10% 용해시키고, 용질의 용해도 향상과 전해액의 전도도 및 열적 안정성을 향상시키고 기타 전해액의 특성을 향상시키기 위하여 다가알콜류인 솔비톨 1-3%와 파라니트로 벤질알콜 0.5-1%을 첨가하여 전해액을 구성한다.The electrolyte solution of the present invention is ammonium-2-butyloctandio, which is a high-level branched dibasic acid, in a mixed solvent in which a small amount of water (H 2 O) is added to ethylene glycol and a small amount of water (H 2 O) is about 1-3%. Ammonium-2-Buthy1-octandioate (6-10%), polyhydric alcohols sorbitol 1-3% and para to improve solubility of solutes, improve conductivity and thermal stability of electrolytes, and improve the properties of other electrolytes. Nitrobenzyl alcohol 0.5-1% is added to form an electrolyte solution.
종래 전해액 및 본 발명의 전해액 구성과 그 특성을 아래 표 1에 나타낸다.The conventional electrolyte solution and the electrolyte solution configuration and characteristics of the present invention 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-10 μ F의 전해콘덴서 제품을 제조하여 그 특성을 표 2에 표시한다.The electrolytic capacitor product of 400V-10μF was manufactured using the electrolyte solution of the prior art and the present invention, and the characteristics thereof are shown in Table 2.
고온부하 시험은 105℃ 500 시간 동안 400V 의 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(tan δ)이 종래의 전해액에 비교하여 1/2정도로 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 (tan δ) of the product is reduced to about 1/2 compared to the conventional electrolyte solution and high ripple. It is possible to manufacture an electrolytic capacitor.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940020899A KR0137998B1 (en) | 1994-08-24 | 1994-08-24 | Electrolyte for aluminum electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940020899A KR0137998B1 (en) | 1994-08-24 | 1994-08-24 | Electrolyte for aluminum electrolytic condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR0137998B1 true KR0137998B1 (en) | 1998-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940020899A KR0137998B1 (en) | 1994-08-24 | 1994-08-24 | Electrolyte for aluminum electrolytic condenser |
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| Country | Link |
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| KR (1) | KR0137998B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100458831B1 (en) * | 2001-12-31 | 2004-12-03 | 파츠닉(주) | An electrolyte for high voltage Al capacitor |
| KR100462077B1 (en) * | 2002-12-06 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
-
1994
- 1994-08-24 KR KR1019940020899A patent/KR0137998B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100458831B1 (en) * | 2001-12-31 | 2004-12-03 | 파츠닉(주) | An electrolyte for high voltage Al capacitor |
| KR100462077B1 (en) * | 2002-12-06 | 2004-12-17 | 파츠닉(주) | Electrolyte for aluminium condenser |
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