KR100587106B1 - Ultrahigh voltage electrolyte of aluminium electrolytic condenser - Google Patents
Ultrahigh voltage electrolyte of aluminium electrolytic condenser Download PDFInfo
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- KR100587106B1 KR100587106B1 KR1020040059081A KR20040059081A KR100587106B1 KR 100587106 B1 KR100587106 B1 KR 100587106B1 KR 1020040059081 A KR1020040059081 A KR 1020040059081A KR 20040059081 A KR20040059081 A KR 20040059081A KR 100587106 B1 KR100587106 B1 KR 100587106B1
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- electrolytic capacitor
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 12
- 239000004411 aluminium Substances 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 11
- 239000000539 dimer Substances 0.000 claims abstract description 7
- JKTYGPATCNUWKN-UHFFFAOYSA-N 4-nitrobenzyl alcohol Chemical compound OCC1=CC=C([N+]([O-])=O)C=C1 JKTYGPATCNUWKN-UHFFFAOYSA-N 0.000 claims abstract description 6
- FOFMIZPXOAUNDQ-UHFFFAOYSA-N azane;2-methylnonanedioic acid Chemical compound N.N.OC(=O)C(C)CCCCCCC(O)=O FOFMIZPXOAUNDQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002904 solvent Substances 0.000 claims abstract description 6
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 claims abstract description 6
- 229920002689 polyvinyl acetate Polymers 0.000 claims description 6
- 239000011118 polyvinyl acetate Substances 0.000 claims description 6
- -1 butyl lactone Chemical class 0.000 claims description 5
- 239000008151 electrolyte solution Substances 0.000 claims description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 abstract description 2
- 229920002554 vinyl polymer Polymers 0.000 abstract description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01G9/022—Electrolytes; Absorbents
- H01G9/035—Liquid electrolytes, e.g. impregnating materials
-
- 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
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/045—Electrodes or formation of dielectric layers thereon characterised by the material based on aluminium
-
- 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
- H01G9/145—Liquid electrolytic capacitors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
본 발명은 알루미늄 전해콘덴서 초고압용 전해액에 관한 것이다.The present invention relates to an aluminum electrolytic capacitor ultra high pressure electrolyte.
본 발명은 알루미늄 전해콘덴서 초고압용 전해액에 있어서, 용매인 에틸렌글리콜 42중량%에 감마부틸락톤 21중량%를 첨가하고 암모늄1.7옥탄디카르복실레이트 12중량%를 첨가하며 다이머산 11중량%, 폴리비닐아세테이트 10중량%, 파라니트로벤질알콜 1중량%, 붕산암모늄 3중량%를 혼합하여 구성되는 것을 특징으로 한다.According to the present invention, an aluminum electrolytic capacitor ultrahigh pressure electrolyte is prepared by adding 21% by weight of gamma butyllactone to 12% by weight of ammonium 1.7 octane dicarboxylate to 42% by weight of ethylene glycol as a solvent, and 11% by weight of dimer acid and polyvinyl. It is characterized by consisting of 10% by weight of acetate, 1% by weight of paranitrobenzyl alcohol, 3% by weight of ammonium borate.
본 발명은 충분한 내전압을 가지면서 전해액의 전도도가 향상되어 하이리플(HIGH RIPPLE)용 소형화 제품에 적용가능하며 고온에서 특성이 안정하고 사용온도 범위가 확대됨은 물론 장시간 사용 가능한 장점이 있다.The present invention has a sufficient withstand voltage, and the conductivity of the electrolyte is improved, so that it can be applied to a miniaturized product for HIGH RIPPLE.
Description
본 발명은 알루미늄 전해콘덴서 초고압용 전해액에 관한 것이다.The present invention relates to an aluminum electrolytic capacitor ultra high pressure electrolyte.
본 발명은 충분한 내전압을 가지면서 전해액의 전도도가 향상되어 하이리플(HIGH RIPPLE)용 소형화 제품에 적용 가능하며 고온에서 특성이 안정하여 사용온도 범위가 확대됨은 물론 장시간 사용 가능하도록 한 것이다.The present invention is to improve the conductivity of the electrolyte while having a sufficient withstand voltage, and can be applied to miniaturized products for high ripple (Stable for high RIPPLE) and stable at high temperature, so as to extend the use temperature range, as well as to use for a long time.
알루미늄 전해콘덴서 중고압용 전해액은 일반적으로 에틸렌글리콜을 주체로한 용매에 붕산계 전해질을 용해시켜 사용하거나 에틸렌글리콜을 주체로한 용매에 아제라인산, 세바틴산 등과 같은 이염기성의 유기산 또는 상기산의 암모늄염을 용해시켜 사용하였다.A high pressure electrolytic solution for aluminum electrolytic capacitors is generally used by dissolving a boric acid-based electrolyte in a solvent mainly composed of ethylene glycol or a dibasic organic acid such as azeline acid, sebacic acid, or an ammonium salt of the acid in a solvent mainly composed of ethylene glycol. It was used by dissolving.
상기 붕산계 전해액은 에스테르화 반응에 의해 다량의 수분이 생성되고 전극박의 열화를 촉진 TANδ 등 특성의 악화와 100℃ 이상의 전해콘덴서에는 수분이 증발되어 콘덴서의 내압을 상승시켜 케이스 방폭변이 작동되어 파양이 되는 결점이 있다.The boric acid-based electrolyte generates a large amount of water by the esterification reaction, promotes deterioration of the electrode foil, deteriorates characteristics such as TANδ, and evaporates moisture to the electrolytic capacitor at 100 ° C. or higher, thereby increasing the internal pressure of the condenser to operate the case. There is a drawback to this.
또한 이염기성산 등의 전해액은 필요한 내전압이 충분치 않고 전해액의 전도 도가 좋지 않아 저손실, LOW ESR용 전해액으로 사용이 어렵고 또한 사용온도범위가 작은 결점이 있다.In addition, electrolytes such as dibasic acids have the disadvantages that the required withstand voltage is not sufficient and the conductivity of the electrolyte is poor, making it difficult to use as a low loss, low ESR electrolyte, and having a small operating temperature range.
이와같은 문제점을 해결하기 위해 디에틸렌글리콜과 같은 다가알콜을 혼합용매로 사용하여 내전압은 다소 향상이 되나 500WV급 이상의 콘덴서에 적용하기에는 내전압이 충분하지 못한 결점이 있다.In order to solve this problem, polyhydric alcohols such as diethylene glycol are used as a mixed solvent, so that the breakdown voltage is slightly improved, but there is a drawback that the breakdown voltage is not sufficient to be applied to a capacitor of 500 WV or more.
본 발명은 충분한 내전압을 가지면서 전해액의 전도도가 향상되어 하이리플(HIGH RIPPLE)용 소형화 제품에 적용가능하며 고온에서 특성이 안정하여 사용온도 범위가 확대됨은 물론 장시간 사용 가능한 알루미늄 전해콘덴서 초고압용 전해액을 제공하는데 목적을 두고 있다.The present invention has a sufficient withstand voltage, and the conductivity of the electrolyte is improved, so that it can be applied to a miniaturized product for HIGH RIPPLE, and the characteristics are stable at high temperature, so that the use temperature range is extended, and the aluminum electrolyte capacitor can be used for a long time. The purpose is to provide.
이를 위해 본 발명은 알루미늄 전해콘덴서 초고압용 전해액에 있어서, 용매인 에틸렌글리콜 42중량%에 감마부틸락톤 21중량%를 첨가하고 암모늄1.7옥탄디카르복실레이트 12중량%를 첨가하며 다이머산 11중량%, 폴리비닐아세테이트 10중량%, 파라니트로벤질알콜 1중량%, 붕산암모늄 3중량%를 혼합하여 구성되는 알루미늄 전해콘덴서 초고압용 전해액을 제공하고자 한다. To this end, the present invention is an aluminum electrolytic capacitor ultra-high pressure electrolyte, in which 42% by weight of ethylene glycol as a solvent is added 21% by weight of gamma butyl lactone, 12% by weight of ammonium 1.7 octane dicarboxylate and 11% by weight of dimer acid, It is to provide an aluminum electrolytic capacitor ultra-high pressure electrolyte composed of 10% by weight of polyvinyl acetate, 1% by weight of paranitrobenzyl alcohol, and 3% by weight of ammonium borate.
본 발명은 알루미늄 전해콘덴서 초고압용 전해액에 있어서, 용매인 에틸렌글리콜 42중량%에 감마부틸락톤 21중량%를 첨가하고 암모늄1.7옥탄디카르복실레이트 12중량%를 첨가하며 다이머산 11중량%, 폴리비닐아세테이트 10중량%, 파라니트로벤질알콜 1중량%, 붕산암모늄 3중량%를 혼합하여 구성되는 것을 특징으로 한다.According to the present invention, an aluminum electrolytic capacitor ultrahigh pressure electrolyte is prepared by adding 21% by weight of gamma butyllactone to 12% by weight of ammonium 1.7 octane dicarboxylate to 42% by weight of ethylene glycol as a solvent, and 11% by weight of dimer acid and polyvinyl. It is characterized by consisting of 10% by weight of acetate, 1% by weight of paranitrobenzyl alcohol, 3% by weight of ammonium borate.
본 발명은 에틸렌글리콜에 감마부틸락톤을 혼합용매로 하여 다이머신(dimer acid)과 장쇄의 이염기성산을 혼합용질로 용해시켰으며 폴리비닐아세테이트를 첨가하여 내전압을 증대시켜 제품의 특성을 개선하였다.In the present invention, a mixed solvent of gamma butyl lactone in ethylene glycol was used to dissolve dimer acid and long-chain dibasic acid as a mixed solute, and polyvinylacetate was added to increase the breakdown voltage to improve product characteristics.
본 발명 알루미늄 전해콘덴서 초고압용 전해액의 구성요소인 에틸렌글리콜은 30~55중량%, 파라니트로벤질알콜은 0.1~3중량%, 다이머산은 5~15중량%, 암모늄1.7옥탄디카르복실레이트는 10~20중량%, 감마부틸락톤은 15~25중량%, 폴리비닐아세테이트는 5~20중량%, 붕산암모늄은 3중량%의 조성범위를 갖도록 하는 것이 바람직하다.Ethylene glycol is a component of the ultra-high pressure electrolytic solution of aluminum electrolytic capacitor of the present invention 30 to 55% by weight, paranitrobenzyl alcohol is 0.1 to 3% by weight, dimer acid is 5 to 15% by weight, ammonium 1.7 octane dicarboxylate is 10 ~ 20% by weight, gamma butyl lactone is 15 to 25% by weight, polyvinylacetate is 5 to 20% by weight, ammonium borate preferably has a composition range of 3% by weight.
종래기술과 본 발명에 의한 전해액의 구성 및 콘덴서의 적용 예를 (85℃용 500V/150㎌ : 30Ψ×40ℓ)와 같은 조건으로 실험하여 [표 1]에서와 같은 결과를 나타내었다. The configuration of the electrolytic solution and the application example of the capacitor according to the prior art and the present invention were tested under the same conditions as (500 V / 150 ㎌: 30Ψ × 40 L for 85 ° C.), and the results as shown in [Table 1] were shown.
주1 : 종래예의 제품은 초기 에에징 작업중 파양 발생으로 측정불가Note 1: Conventional products cannot be measured due to generation of wave during the initial aging process.
[표 1]TABLE 1
이상에서는 본 발명의 바람직한 실시예에 대하여 설명하였으나 본 발명은 상기한 실시예에 한정되지 아니하며 청구범위에서 청구하는 본 발명의 요지를 벗어남이 없이 당해 본 발명이 속하는 분야에서 통상의 지식을 가진 자라면 누구든지 다양한 변형 실시가 가능한 것은 물론이고 그와 같은 변경은 기재된 청구범위 내에 있게 된다.In the above description of the preferred embodiment of the present invention, but the present invention is not limited to the above-described embodiment and those skilled in the art without departing from the gist of the present invention claimed in the claims Anyone may make various modifications, as well as such modifications fall within the scope of the appended claims.
본 발명은 충분한 내전압을 가지면서 전해액의 전도도가 향상되어 하이리플(HIGH RIPPLE)용 소형화 제품에 적용가능하며 고온에서 특성이 안정하고 사용온도 범위가 확대됨은 물론 장시간 사용 가능한 장점이 있으며 감마부틸락톤과 폴리비닐아세테이트를 적용하여 제품의 특성을 개선함으로서 85℃ 500WV용으로 적용가능한 장점이 있다.
The present invention has a sufficient withstand voltage, and the conductivity of the electrolyte is improved, so that it can be applied to a miniaturized product for HIGH RIPPLE. By applying polyvinyl acetate to improve the properties of the product there is an advantage that can be applied for 85 ℃ 500WV.
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| KR1020040059081A KR100587106B1 (en) | 2004-07-28 | 2004-07-28 | Ultrahigh voltage electrolyte of aluminium electrolytic condenser |
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