KR940008894B1 - Electrolytic liquid for aluminium electrolytic condenser - Google Patents
Electrolytic liquid for aluminium electrolytic condenser Download PDFInfo
- Publication number
- KR940008894B1 KR940008894B1 KR1019920007234A KR920007234A KR940008894B1 KR 940008894 B1 KR940008894 B1 KR 940008894B1 KR 1019920007234 A KR1019920007234 A KR 1019920007234A KR 920007234 A KR920007234 A KR 920007234A KR 940008894 B1 KR940008894 B1 KR 940008894B1
- Authority
- KR
- South Korea
- Prior art keywords
- electrolytic
- present
- electrolyte
- ethylene glycol
- condenser
- Prior art date
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 8
- 229910052782 aluminium Inorganic materials 0.000 title claims description 8
- 239000004411 aluminium Substances 0.000 title 1
- 239000007788 liquid Substances 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims abstract description 12
- 239000012046 mixed solvent Substances 0.000 claims abstract description 4
- 150000003839 salts Chemical class 0.000 claims abstract description 4
- 239000008151 electrolyte solution Substances 0.000 claims description 12
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- SLAMLWHELXOEJZ-UHFFFAOYSA-N 2-nitrobenzoic acid Chemical compound OC(=O)C1=CC=CC=C1[N+]([O-])=O SLAMLWHELXOEJZ-UHFFFAOYSA-N 0.000 claims description 2
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 1
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003792 electrolyte Substances 0.000 abstract description 5
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 abstract description 2
- 229940021013 electrolyte solution Drugs 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 239000002904 solvent Substances 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 229940067597 azelate Drugs 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
본 발명은 알루미늄 전해콘덴서용 전해액에 관한 것이다.The present invention relates to an electrolytic solution for aluminum electrolytic capacitors.
종래의 중고압용 알루미늄 전해콘덴서의 전해액은 제품의 내전압을 높이기 위하여 에틸렌 글리콜의 단독 용매 또는 디에틸렌 글리콜과의 혼합용매에 붕산 또는 세바틴산 또는 그 염들을 용질로 하여 140℃ 내지 160℃의 고온에서 용해시켜 사용해 왔다. 그러나 이러한 전해액은 용질과 용매의 에스테르화 반응에 의해 생성된 H2O의 증발과 그에 따른 액 비저항 증대, 제품의 손실각의 정접의 증대, 등가 직렬저항의 발생 및 고온장시간 사용시 양극박상의 산화유전체 피막과의 반응에 따른 열화 등으로 인해 제품의 신뢰성이 낮아지는 단점이 있다.The electrolyte of the conventional high pressure aluminum electrolytic capacitor is dissolved at a high temperature of 140 ° C. to 160 ° C. using boric acid or sebacic acid or its salts as a solute in a single solvent of ethylene glycol or a mixed solvent with diethylene glycol to increase the breakdown voltage of the product. I have used it. However, these electrolytes are characterized by the evaporation of H 2 O produced by the esterification reaction of solutes and solvents, the resulting increase in the resistivity of the solution, the increase in the tangent loss of the product, the generation of equivalent series resistance, and the oxidized dielectric in the bipolar foil when used for a long time. Due to deterioration due to reaction with the coating, there is a disadvantage in that the reliability of the product is lowered.
따라서 본 발명의 목적은 상기의 단점을 제거하기 위해서 에틸렌 클리콜과 디에틸렌 글리콜에 열적으로 안정한 메칠 세로솔부(Methyl cellosolve)를 가하여 혼합용매로 사용하고 아제라익산(Azelaic Acid)또는 그 염을 용질로 하여 80℃ 이하의 저온에서 용해 반응시켜 제품이 충분한 내전압을 가지면서 사용온도 범위가 넓어 장시간 사용가능한 알루미늄 전해콘덴서용 전해액을 제공하고자 하는 것이다.Accordingly, an object of the present invention is to add a thermally stable methyl cellosolve to ethylene glycol and diethylene glycol in order to eliminate the above disadvantages and to use as a mixed solvent and to use azelaic acid or its salt as a solute. It is intended to provide an electrolyte solution for aluminum electrolytic capacitors that can be used for a long time by dissolving and reacting at a low temperature of less than 80 ℃ to have a sufficient withstand voltage and wide use temperature range.
본 발명의 전해액에는 제품화시 특성향상을 위해 기능성 약품, 예컨대 니트로 안식향산 또는 니트로 페놀이 첨가될 수 있다.In the electrolyte solution of the present invention, functional drugs such as nitro benzoic acid or nitro phenol may be added to improve properties during commercialization.
본 발명을 실시예를 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to Examples.
[실시예 1]Example 1
본 발명의 전해액은 용매로서 에틸렌 글리콜 20Wt%, 디에틸렌 글리콜 60Wt%및 메칠세로솔부 15Wt% 를 혼합사용하고 용질로서 암모늄 하이드로젠 아젤레이트(Amm Hydrogen Azelate) 5Wt%을 사용하여 80℃ 이하에서 용해 반응시킨다.The electrolyte solution of the present invention is dissolved at 80 ° C. or less by using 20 Wt% of ethylene glycol, 60 Wt% of diethylene glycol, and 15 Wt% of methyl serosol as a solvent, and 5 Wt% of ammonium hydrogen azelate as a solute. Let's do it.
[실시예 2]Example 2
본 발명의 전해액은 용매로서 에틸렌 글리콜 30Wt%, 디에틸렌 글리콜 45Wt% 및 메칠세로솔부 17Wt%를 혼합 사용하고 용질로서 암모늄 하이드로젠 아젤레이트 8Wt%를 사용하여 80℃이하에서 용해 반응시킨다.The electrolyte solution of the present invention is mixed with 30 Wt% of ethylene glycol, 45 Wt% of diethylene glycol, and 17 Wt% of methyl serosol moiety as a solvent, and dissolved and reacted at 80 ° C. or less using 8 Wt% of ammonium hydrogen azelate as a solute.
상기의 본 발명에 대한 실시예들은 종래의 비교예들과 전해액 조성비로 나타내면 표1과 같다.Examples of the present invention described above are shown in Table 1 when compared with the conventional comparative examples and the electrolyte composition ratio.
[표 1]TABLE 1
본 발명의 실시예들과 비교예들이 전해액에 대한 비저항과 PH 특성을 25℃에서 측정한 값과 내전압 특성을 30℃에서 측정한 값이 표 2에 도시된다.Table 2 shows the values of the specific resistance and PH characteristics of the electrolyte solution at 25 ° C. and the breakdown voltage characteristics at 30 ° C. of the present invention and the comparative examples.
[표 2]TABLE 2
본 발명은 실시예들과 비교예들의 전해액을 이용하여 400WV-150μF의 알루미늄 전해콘덴서를 제조하여 초기치 특성과 고온 및 저온특성을 표 3에서 도시한다.In the present invention, 400WV-150μF aluminum electrolytic capacitors are manufactured using the electrolyte solutions of Examples and Comparative Examples, and their initial characteristics and high and low temperature characteristics are shown in Table 3.
[표 3]TABLE 3
* 비교예 1은 저온시 전해액 점성증대로 특성이 체크되지 않았음.* In Comparative Example 1, the characteristic was not checked due to the increase in viscosity of the electrolyte solution at low temperature.
본 발명의 실시예들과 비교예들의 알루미늄 전해콘덴서의 라이프 특성을 측정하기 위하여 105℃의 고온에서 정격 전압을 인가하여 500hrs 경과후의 성을 기록하여 표 4에서 도시한다.In order to measure the life characteristics of the aluminum electrolytic capacitors of the embodiments and comparative examples of the present invention, the properties after 500hrs by applying a rated voltage at a high temperature of 105 ℃ is shown in Table 4.
[표 4]TABLE 4
* 상기 데이터는 콘덴서 제품 10개의 평균 데이터임.* The above data is average data of 10 capacitor products.
상기와 같이 본 발명의 전해액을 사용한 고압용 전해콘덴서는 충분한 내전압성을 가지며 액의 비저항 값이 작아 높은 리플전류용으로 사용 가능하며 저온특성이 향상되고 고온수명 특성이 안정되어 사용온도 범위가 높고 105℃의 높은 온도에서도 장기산 사용가능한 전해콘덴서를 얻을 수 있다.As described above, the high pressure electrolytic capacitor using the electrolytic solution of the present invention has sufficient withstand voltage resistance and has a low resistivity value, so that it can be used for high ripple current, the low temperature characteristic is improved, the high temperature life characteristic is stable, and the operating temperature range is high. It is possible to obtain an electrolytic capacitor which can be used for a long term even at high temperature.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920007234A KR940008894B1 (en) | 1992-04-29 | 1992-04-29 | Electrolytic liquid for aluminium electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920007234A KR940008894B1 (en) | 1992-04-29 | 1992-04-29 | Electrolytic liquid for aluminium electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR930022409A KR930022409A (en) | 1993-11-24 |
| KR940008894B1 true KR940008894B1 (en) | 1994-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920007234A KR940008894B1 (en) | 1992-04-29 | 1992-04-29 | Electrolytic liquid for aluminium electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR940008894B1 (en) |
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1992
- 1992-04-29 KR KR1019920007234A patent/KR940008894B1/en not_active IP Right Cessation
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| Publication number | Publication date |
|---|---|
| KR930022409A (en) | 1993-11-24 |
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