KR970008557B1 - Electrolyte of aluminium electrolytic condenser - Google Patents
Electrolyte of aluminium electrolytic condenser Download PDFInfo
- Publication number
- KR970008557B1 KR970008557B1 KR1019940012283A KR19940012283A KR970008557B1 KR 970008557 B1 KR970008557 B1 KR 970008557B1 KR 1019940012283 A KR1019940012283 A KR 1019940012283A KR 19940012283 A KR19940012283 A KR 19940012283A KR 970008557 B1 KR970008557 B1 KR 970008557B1
- Authority
- KR
- South Korea
- Prior art keywords
- electrolyte
- condenser
- electrolytic condenser
- electrolytic
- ethylene glycol
- Prior art date
Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 5
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 5
- 239000004411 aluminium Substances 0.000 title abstract 2
- 239000003792 electrolyte Substances 0.000 title description 5
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 14
- 239000002904 solvent Substances 0.000 claims abstract description 6
- DJOQIPRYBJRAPQ-UHFFFAOYSA-N 2-(4-methoxycarbonyl-4-methylundecan-2-yl)propanedioic acid Chemical compound CCCCCCCC(C)(C(=O)OC)CC(C)C(C(O)=O)C(O)=O DJOQIPRYBJRAPQ-UHFFFAOYSA-N 0.000 claims abstract 2
- 239000003990 capacitor Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002265 prevention Effects 0.000 abstract 1
- 239000002253 acid Substances 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 4
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 description 3
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 description 3
- 150000002828 nitro derivatives Chemical class 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- ARKIFHPFTHVKDT-UHFFFAOYSA-N 1-(3-nitrophenyl)ethanone Chemical compound CC(=O)C1=CC=CC([N+]([O-])=O)=C1 ARKIFHPFTHVKDT-UHFFFAOYSA-N 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001179 sorption measurement Methods 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
- H01G9/02—Diaphragms; Separators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
본 발명은 알루미늄 전해 콘덴서의 고압용 전해액에 관한 것으로, 특히 충분한 내전압을 가지면서 전해액의 전도도값이 향상되어 하이리플용, 소형화 제품에 사용가능하며, 고온에서 특성이 안정하여 사용온도 범위가 확대되고 장시간 사용가능한 전해 콘덴서용 전해액에 관한 것이다.The present invention relates to an electrolytic solution for high pressure of an aluminum electrolytic capacitor, and in particular, has a sufficient withstand voltage and improves the conductivity value of the electrolytic solution, which can be used for high ripple and miniaturized products. It relates to an electrolytic solution for an electrolytic capacitor that can be used for a long time.
종래 고압용 콘덴서에 사용된 전해액을 에틸렌 글리콜을 주체로한 용매에 아제라인산(Azelaic acid), 세바틴산(Sebacic acid)등과 같은 고급의 직쇄 이염기성산 또는 상기산의 암모늄 염을 용질로 하고 전해 콘덴서 고온 수명 특성을 개선하기 위해 파라니트로페놀(P-nitro phenol) 또는 파라니트로 안식향산(P-nitrobenzoic acid)과 같은 니트로 화합물을 첨가하여 구성하였다.The electrolytic solution used in the conventional high pressure capacitor is a high-quality straight-chain dibasic acid such as azelaic acid, sebacic acid, or ammonium salt of the acid in a solvent mainly composed of ethylene glycol. In order to improve the high temperature life characteristics, a nitro compound such as paranitrophenol (P-nitro phenol) or paranitro benzoic acid (P-nitrobenzoic acid) was added.
그러나 상기와 같이 전해액을 구성하면 에틸렌 글리콜에 대한 이염기성산 및 그 염들의 용해도가 작아 100℃ 이상의 고온에서 장시간 제조해야 하는 결점과 고온에서의 장시간 제조에 따른 전해액의 전도도 감소 및 전해 콘덴서 제조후 장시간 사용시 전해액과 알루미늄 전극과의 반응에 따른 수소가스가 발생되어 콘덴서의 수명이 단축되는 결점이 있으며 또 이를 보완하기 위해 파라니트로 페놀, 파라니트로 안식향산을 첨가하기도 하나 이 약품들을 첨가하면 전해액의 전도도 및 내전압이 감소하는 결점이 있다.However, if the electrolyte is composed as described above, the solubility of dibasic acid and salts thereof in ethylene glycol is small, and the defect of having to be prepared for a long time at a high temperature of 100 ° C. or higher, and the conductivity of the electrolyte due to the long time of manufacturing at a high temperature, and for a long time after the manufacture of the electrolytic capacitor When using, hydrogen gas is generated by the reaction between electrolyte and aluminum electrode, which shortens the life of the condenser. To compensate for this, paranitrophenol and paranitrobenzoic acid may be added. There is this decreasing drawback.
따라서 본 발명은 상기의 문제점을 해결하기 위해 창출한 것이다.Therefore, the present invention was created to solve the above problems.
본 발명은 종래와 같은 고급의 직쇄 이염기성산 또는 그 염을 에틸렌 글리콜 용매에 용해하는 방법대신에 고급의 측쇄 이염기성산 또는 그 염을 용해도 향상을 위해 소량의 H2O가 첨가된 에틸렌 글리콜 용매에 용해시키고 니트로 화합물중 메타-니트로아세토페논(m-nitroacetophenon)을 소량 첨가하여 전해콘덴서를 장시간 사용시 발생되는 수소가스를 흡착 콘덴서 수명을 연장시킬 수 있도록 하는 고신뢰성 전해액을 구성함을 특징으로 한다.The present invention is an ethylene glycol solvent in which a small amount of H 2 O is added to improve the solubility of high-level branched dibasic acids or salts thereof, instead of dissolving high-quality straight-chain dibasic acids or salts thereof in ethylene glycol solvent. And a small amount of meta-nitroacetophenon in the nitro compound to form a highly reliable electrolyte solution that can extend the lifetime of the adsorption condenser by hydrogen gas generated when using the electrolytic capacitor for a long time.
본 발명은 실시예를 참조하여 상세히 설명한다.The invention is explained in detail with reference to the examples.
실시예 1Example 1
본 발명의 전해액은 에틸렌 글리콜 용매에 용질로 고급의 측쇄 이염기성 산인 2-metyl-nonandicarboxyic acid와 2, 4-dimethyl-4-carbomethoxy-undecaudicarboxylic acid 또는 그 염을 단독 또는 혼합하여 6~13% 정도 용해시키고 상기 용질의 용해도 향상을 위해 1~2%의 물을 첨가하고 콘덴서 내의 발생된 수소(H2)가스를 제거하기 위해 전기 음성도가 큰 니트로 화합물 중 m-nitroacetophenon을 0.5~2% 정도 첨가하여 전해액을 완성한다.Electrolyte solution of the present invention is dissolved in about 6-13% alone or mixed with 2-methyl-nonandicarboxyic acid, 2,4-dimethyl-4-carbomethoxy-undecaudicarboxylic acid, or a salt thereof, as a solute in an ethylene glycol solvent. To improve the solubility of the solute, add 1 ~ 2% water and add 0.5 ~ 2% of m-nitroacetophenon in the nitro compound with high electronegativity to remove the hydrogen (H 2 ) gas generated in the condenser. Complete the electrolyte.
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.
[표 1]TABLE 1
* 특성 측정온도 : 25℃* Characteristic measurement temperature: 25 ℃
표 1과 같이 본 발명의 전해액은 종래의 전해액과 비교하여 전도도가 월등히 상승되었지만 내전압이 저하되지 않아 400V 제품에 적용하여 고신뢰성을 증대시키는 것이 가능하다.As shown in Table 1, although the conductivity of the present invention is much higher than that of the conventional electrolyte solution, the withstand voltage does not decrease, so that it is possible to increase the high reliability by applying to 400V products.
종래 및 본 발명의 전해액을 이용하여 400V-7μF의 전해 콘덴서 제품을 제조하여 그 특성을 표 2에 표시한다.The electrolytic capacitor product of 400V-7μF was manufactured using the electrolytic solution of the prior art and this invention, and the characteristic is shown in Table 2.
[표 2]TABLE 2
고온부하 시험은 105℃ 1000시간 동안 정격전압을 인가하여 얻은 결과이며 시료수 10개 평균치이다.The high temperature load test is the result obtained by applying the rated voltage for 1000 hours at 105 ℃ and is an average of 10 samples.
본 발명의 전해액을 사용하면 종래의 전해액에 비교하여 초기 특성 및 고온부하 시험의 특성이 전부 향상되며 특히 tan δ의 변화가 적어 안정된 특성을 갖는 전해 콘덴서를 제조하는 것이 가능하다.When the electrolyte solution of the present invention is used, it is possible to manufacture an electrolytic capacitor having stable characteristics because all of the characteristics of the initial characteristics and the high temperature load test are improved compared to the conventional electrolyte solution, and in particular, the variation of tan δ is small.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940012283A KR970008557B1 (en) | 1994-06-01 | 1994-06-01 | Electrolyte of aluminium electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019940012283A KR970008557B1 (en) | 1994-06-01 | 1994-06-01 | Electrolyte of aluminium electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR960002395A KR960002395A (en) | 1996-01-26 |
| KR970008557B1 true KR970008557B1 (en) | 1997-05-27 |
Family
ID=19384445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019940012283A KR970008557B1 (en) | 1994-06-01 | 1994-06-01 | Electrolyte of aluminium electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR970008557B1 (en) |
-
1994
- 1994-06-01 KR KR1019940012283A patent/KR970008557B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR960002395A (en) | 1996-01-26 |
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| G160 | Decision to publish patent application | ||
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