KR20040049448A - Electrolyte for aluminium condenser - Google Patents
Electrolyte for aluminium condenser Download PDFInfo
- Publication number
- KR20040049448A KR20040049448A KR1020020077222A KR20020077222A KR20040049448A KR 20040049448 A KR20040049448 A KR 20040049448A KR 1020020077222 A KR1020020077222 A KR 1020020077222A KR 20020077222 A KR20020077222 A KR 20020077222A KR 20040049448 A KR20040049448 A KR 20040049448A
- Authority
- KR
- South Korea
- Prior art keywords
- electrolyte
- weight percent
- composition
- acid
- electrolytic capacitor
- Prior art date
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 10
- 239000004411 aluminium Substances 0.000 title 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 27
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid Chemical compound CCCCCCCCCCCC(O)=O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000000203 mixture Substances 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000005639 Lauric acid Substances 0.000 claims abstract description 8
- 239000002253 acid Substances 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 6
- 235000012239 silicon dioxide Nutrition 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 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims 1
- 125000006503 p-nitrobenzyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1[N+]([O-])=O)C([H])([H])* 0.000 claims 1
- JKTYGPATCNUWKN-UHFFFAOYSA-N 4-nitrobenzyl alcohol Chemical compound OCC1=CC=C([N+]([O-])=O)C=C1 JKTYGPATCNUWKN-UHFFFAOYSA-N 0.000 abstract description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 2
- YSFZWUJOBANROZ-UHFFFAOYSA-N heptylmalonic acid Chemical compound CCCCCCCC(C(O)=O)C(O)=O YSFZWUJOBANROZ-UHFFFAOYSA-N 0.000 abstract 1
- 229960001866 silicon dioxide Drugs 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 description 12
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 4
- 239000002904 solvent Substances 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 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
- 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
- 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
- 238000004880 explosion Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
본 발명은 알루미늄 전해콘덴서의 고압용 전해액 조성물에 관한 것으로, 특히 충분한 내전압을 가지면서 전해액의 전도도가 향상되어 하이리플(high ripple)용 소형화 제품에 적용가능하며 고온에서 특성이 안정하여 사용온도 범위가 확대되고 장시간 사용 가능한 전해액 조성물에 관한 것이다.The present invention relates to an electrolytic solution composition for high pressure of an aluminum electrolytic capacitor, in particular, having a sufficient withstand voltage and improving the conductivity of the electrolytic solution, which is applicable to a miniaturized product for high ripple, and has a stable temperature at high temperature, and thus an operating temperature range. It relates to an electrolyte solution composition which is expanded and can be used for a long time.
종래의 알루미늄 전해콘덴서의 중고압용 전해액은 에틸렌글리콜을 주체로 한 용매에 붕산계 전해질을 용해시켜 사용하거나 에틸렌글리콜을 주체로 한 용매에 아제라인산, 세바틴산 등과 같은 이염기성의 유기산 또는 상기산의 암모늄염을 용해시켜 사용하였다.The high-pressure electrolytic solution of a conventional aluminum electrolytic capacitor is 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. Was used by dissolving.
이러한 붕산계 전해액은 에스테르화 반응에 의해 다량의 수분이 생성되고 전극박의 열화를 촉진시켜 손실각(tanδ) 등의 특성의 악화와 100℃ 이상의 전해콘덴서에서는 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 a loss angle (tanδ), and evaporates moisture in an electrolytic capacitor of 100 ° C. or higher, thereby increasing the internal pressure of the condenser. There is a drawback that the case's explosion proof acts as a wave.
또한 이염기성산 등의 전해액은 필요한 내전압이 충분치 않고 전해액의 전도도가 좋지 않아 저 손실, 낮은 등가직렬저항(ESR)용 전해액으로서 사용이 어려우며 사용온도 범위가 작은 결점이 있다.In addition, an electrolyte such as dibasic acid has a drawback that the required breakdown voltage is not sufficient and the conductivity of the electrolyte is poor, making it difficult to use as an electrolyte for low loss, low equivalent series resistance (ESR) and having a small operating temperature range.
이와 같은 문제점을 해결하기 위해 디에틸렌글리콜과 같은 다가알콜을 혼합용매로 사용하기도 하나 내전압은 다소 향상되나 450WV 급 이상의 콘덴서에 적용하기는 내전압이 충분하지 못한 결점이 있다.In order to solve such a problem, a polyhydric alcohol such as diethylene glycol may be used as a mixed solvent, but the breakdown voltage is slightly improved, but the breakdown voltage is not sufficient to be applied to a capacitor of 450 WV or more.
본 발명의 목적은 상기와 같은 문제점을 해결하기 위하여 충분한 내전압을 가지고 전도도가 향상되며 고온에서 특성이 안정된 알루미늄 전해콘덴서의 고압용 전해액 조성물을 제공하고자 하는 것이다.It is an object of the present invention to provide a high pressure electrolyte composition of an aluminum electrolytic capacitor having sufficient withstand voltage, improved conductivity, and stable properties at high temperatures.
본 발명의 전해액 조성물은 에틸렌글리콜 50 내지 85 wt%, 암모늄 1.7 옥탄디카르복실레이트 6 내지 12 wt%, 라우르산 1 내지 5wt%, 실리콘다이옥사이드 2 내지 8 wt%, 파라니트로벤질알콜 0.1 내지 2 wt%로 이루어진다.The electrolyte composition of the present invention is 50 to 85 wt% of ethylene glycol, 6 to 12 wt% of ammonium 1.7 octanedicarboxylate, 1 to 5 wt% of lauric acid, 2 to 8 wt% of silicon dioxide, 0.1 to 2 of paranitrobenzyl alcohol consisting of wt%.
본 발명을 실시예를 참조하여 상세히 설명한다.The present invention will be described in detail with reference to Examples.
본 발명의 전해액 조성물은 에틸렌글리콜 용매에 긴 체인(long chain)의 측쇄 이염기성산 또는 그 암모늄염과 직쇄의 염기성산인 라우르산을 혼합하여 전해질로 사용하여 전해액의 전도도와 열적 안정성을 향상시키는 것이다.The electrolyte composition of the present invention is to improve the conductivity and thermal stability of the electrolyte solution by mixing a long chain side chain dibasic acid or its ammonium salt and lauric acid as a linear basic acid in an ethylene glycol solvent.
또한 본 발명의 전해액 조성물은 전해액의 내전압을 상승시키기 위해 실리콘다이옥사이드를 사용하고, 콘덴서의 수명특성을 향상시키기 위해 니트로 화합물을 추가하여 완성된다.In addition, the electrolyte composition of the present invention is completed by using a silicon dioxide to increase the breakdown voltage of the electrolyte, and by adding a nitro compound to improve the life characteristics of the capacitor.
본 발명의 전해액 조성물은 종래의 전해액과 대비하여 전해액 구성 및 콘덴서 적용 예를 하기표에 나타낸다. 하기표는 105℃용 450V/150μF 의 크기 25φ×40ι알루미늄 전해콘덴서 적용 예이다.The electrolytic solution composition of the present invention is shown in the following table with examples of the electrolytic solution configuration and capacitor application as compared with the conventional electrolytic solution. The following table shows an example of application of a 25 φ × 40 ι aluminum electrolytic capacitor having a size of 450 V / 150 μF for 105 ° C.
상기 표에 나타난 바와 같이, 본 발명의 전해액 조성물은 에틸렌글리콜 50 내지 85 wt%, 암모늄 1.7 옥탄디카르복실레이트 6 내지 12 wt%, 라우르산 1 내지 5wt%, 실리콘다이옥사이드 2 내지 8 wt%, 파라니트로벤질알콜 0.1 내지 2 wt%의 범위의 조성으로 이루어진다.As shown in the table, the electrolyte composition of the present invention is 50 to 85 wt% ethylene glycol, 6 to 12 wt% ammonium 1.7 octanedicarboxylate, 1 to 5 wt% lauric acid, 2 to 8 wt% silicon dioxide, Paranitrobenzyl alcohol consists of a composition in the range of 0.1 to 2 wt%.
본 발명의 전해액 조성물은 전도도가 종래보다 향상되고 내전압도 향상되었음을 알 수 있다. 또한 제품 특성도 본 발명의 조성물을 사용한 알루미늄 전해콘덴서가 종래의 전해액을 사용한 제품보다 우수함을 알 수 있다.It can be seen that the electrolytic solution composition of the present invention has improved conductivity and withstand voltage. In addition, it can be seen that the aluminum electrolytic capacitor using the composition of the present invention is also superior to the product using the conventional electrolyte solution.
상기와 같은 본 발명에 따르면, 본 발명의 전해액 조성물은 긴 체인 직쇄의 라우르산을 적용하여 열적으로 안정하고, 전도도가 뛰어나며 충분한 내전압을 가져 105℃ 450WV 용 알루미늄 전해콘덴서에 적용 가능한 전해액으로 전도도가 향상되고 콘덴서의 손실각(tanδ) 특성이 개선되는 효과를 제공한다.According to the present invention as described above, the electrolytic solution composition of the present invention is thermally stable by applying a long chain linear lauric acid, has excellent conductivity and has sufficient withstand voltage, so that the conductivity as an electrolyte solution applicable to the aluminum electrolytic capacitor for 105 ℃ 450WV It is improved and the loss angle (tan δ) characteristic of the capacitor is improved.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0077222A KR100462076B1 (en) | 2002-12-06 | 2002-12-06 | Electrolyte for aluminium condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2002-0077222A KR100462076B1 (en) | 2002-12-06 | 2002-12-06 | Electrolyte for aluminium condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20040049448A true KR20040049448A (en) | 2004-06-12 |
| KR100462076B1 KR100462076B1 (en) | 2004-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR10-2002-0077222A KR100462076B1 (en) | 2002-12-06 | 2002-12-06 | Electrolyte for aluminium condenser |
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| Country | Link |
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| KR (1) | KR100462076B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977027A (en) * | 2016-08-04 | 2016-09-28 | 湖南柯立凯科技开发有限公司 | Electrolyte for aluminum electrolytic capacitor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06196367A (en) * | 1992-12-24 | 1994-07-15 | Mitsubishi Petrochem Co Ltd | Electrolyte for electrolytic capacitor |
| KR0137999B1 (en) * | 1994-07-11 | 1998-06-15 | 서두칠 | Electrolyte of aluminum electrolytic condenser |
| JPH0936002A (en) * | 1995-07-19 | 1997-02-07 | Elna Co Ltd | Electrolytic condenser |
| JP4554012B2 (en) * | 1998-10-13 | 2010-09-29 | パナソニック株式会社 | Aluminum electrolytic capacitor |
-
2002
- 2002-12-06 KR KR10-2002-0077222A patent/KR100462076B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977027A (en) * | 2016-08-04 | 2016-09-28 | 湖南柯立凯科技开发有限公司 | Electrolyte for aluminum electrolytic capacitor |
| CN105977027B (en) * | 2016-08-04 | 2017-11-17 | 湖南柯立凯科技开发有限公司 | A kind of electrolyte for aluminum electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100462076B1 (en) | 2004-12-17 |
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