KR960010107B1 - Electrolyte for an aluminium condensor - Google Patents
Electrolyte for an aluminium condensor Download PDFInfo
- Publication number
- KR960010107B1 KR960010107B1 KR1019930005373A KR930005373A KR960010107B1 KR 960010107 B1 KR960010107 B1 KR 960010107B1 KR 1019930005373 A KR1019930005373 A KR 1019930005373A KR 930005373 A KR930005373 A KR 930005373A KR 960010107 B1 KR960010107 B1 KR 960010107B1
- Authority
- KR
- South Korea
- Prior art keywords
- acid
- electrolyte
- ethylene glycol
- electrolytic capacitor
- electrolyte solution
- Prior art date
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 title abstract description 4
- 239000004411 aluminium Substances 0.000 title abstract 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000002253 acid Substances 0.000 claims abstract description 9
- 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 description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004327 boric acid Substances 0.000 claims abstract description 5
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims abstract 4
- 239000005711 Benzoic acid Substances 0.000 claims abstract 2
- 235000010233 benzoic acid Nutrition 0.000 claims abstract 2
- 239000008151 electrolyte solution Substances 0.000 claims description 14
- 239000003990 capacitor Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 claims description 7
- 239000003463 adsorbent Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical group [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 0.000 claims description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 2
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 claims 1
- 150000005846 sugar alcohols Polymers 0.000 abstract 1
- 229940021013 electrolyte solution Drugs 0.000 description 8
- 239000000047 product Substances 0.000 description 5
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- KZVHXPMKMHZWJC-UHFFFAOYSA-N 2-nonan-2-ylpropanedioic acid Chemical compound CCCCCCCC(C)C(C(O)=O)C(O)=O KZVHXPMKMHZWJC-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000126 substance 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
- H01G9/004—Details
- H01G9/02—Diaphragms; Separators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Description
본 발명은 고압용 알루미늄 전해콘덴서용 전해액에 관한 것으로, 특히 충분한 내전압을 가지면서 전해액의 비저항 값이 작아 하이르플(High Ripple)용 소형화 제품에 사용가능하며, 고온에서 특성이 안정하여 사용온도 범위가 확대되고 장시간 사용가능한 전해콘덴서용 전해액에 관한 것이다.The present invention relates to an electrolytic solution for a high pressure aluminum electrolytic capacitor, and in particular, having a sufficient withstand voltage and having a low specific resistance, can be used in a miniaturized product for high ripple. The present invention relates to an electrolytic capacitor electrolyte that can be extended and used for a long time.
종래 고압용 콘덴서에 사용된 전해액은 에틸렌 글리콜을 주체로한 용매에 붕산 또는 붕산 암모늄을 용해시켜 구성하거나 에틸렌 글리콜을 주체로한 용매에 세바틴산과 같은 이염기성산을 용해시켜 구성 하였다.The electrolytic solution used in the conventional high pressure condenser was composed by dissolving boric acid or ammonium borate in a solvent mainly composed of ethylene glycol or by dissolving dibasic acids such as sebacic acid in a solvent mainly composed of ethylene glycol.
종래의 에틸렌 글리콜과 붕산계 전해액은 전도도가 낮고, 에틸렌 글리콜과 붕산의 에스테르화 반응에 따라 다량의 H2O가 생기고, 이 생성된 H2O와 알루미늄 포일(FOIL)과 반응하여 H2가스가 발생 콘덴서의 내압을 상승시켜 결국에는 펑크(PUNK) 불량이 발생콘덴서를 사용하지 못하게 된다.Low in the conventional glycol, boric acid-based electrolytic solution is conductivity, occurs a large amount of H 2 O depending on the esterification reaction of ethylene glycol with boric acid, the resulting H 2 O and the aluminum foil (FOIL) reacts with the H 2 gas is The internal pressure of the generating capacitor is increased, and eventually, a puncture failure prevents the generating capacitor from being used.
또 종래의 에틸렌 글리콜과 이염기성산계의 전해액은 용매에 대한 용질의 용해도가 적어 전해액 구성시 고온에서 장시간 전해액을 구성해야 하는 문제점과 그에 따른 전해액의 전도도 감소 및 전해액 구성후 콘덴서를 제조하여 장시간 사용시 전해액의 결정이 석출되어 콘덴서 수명이 단축되는 결점이 있다.In addition, the conventional ethylene glycol and dibasic acid-based electrolyte solution has a low solubility in solvents, so it is necessary to configure the electrolyte for a long time at high temperature in the composition of the electrolyte, and thus the conductivity of the electrolyte is reduced and the electrolyte is prepared after using the capacitor for a long time. Crystals precipitate and shorten the life of the capacitor.
본 발명의 목적은 상기와 같은 문제점을 해결하기 위하여 2-methyl-nonan dicarboxylic acid와, 2,4-dimethyl-4-carbomethoxy-unde candicar boxylic acid또는 그 염을 용질로 사용 에틸렌 글리콜 용매에 용해시키고 이에 콘덴서의 특성을 향상시키기 위해 기타 약품을 첨가한 전해액을 제공하고자 하는 것이다.An object of the present invention is to dissolve 2-methyl-nonan dicarboxylic acid and 2,4-dimethyl-4-carbomethoxy-unde candicar boxylic acid or salts thereof in an ethylene glycol solvent used as a solute to solve the above problems. In order to improve the characteristics of the capacitor is to provide an electrolyte solution added with other chemicals.
본 발명에서는 에틸렌 글리콜을 용매로하고 이에 장쇄(long chain)인 이염기성산 또는 그 염을 용해시켜 구성한다.In the present invention, ethylene glycol is used as a solvent, and a long chain dibasic acid or a salt thereof is dissolved.
상기의 장쇄 이염기성산으로서는 2-methyl-monandicarboxy-lic acid와, 2,4-dimethyl-4-carbomethoxy-undecandi-carboxylic acid로 각각 단독 사용 또는 일정한 비율로 혼합하여 사용한다.As the long-chain dibasic acid, 2-methyl-monandicarboxy-lic acid and 2,4-dimethyl-4-carbomethoxy-undecandi-carboxylic acid may be used alone or mixed at a constant ratio.
본 발명을 실시예를 참조하여 상세히 설명한다.The present invention will be described in detail with reference to Examples.
[실시예 1]Example 1
본 발명의 전해액은 2-methyl-monandicarboxylic acid와, 2,4-dimethyl-4-carbomethoxy-undecandicarboxylic aicd, 또는 각각의 암모늄염을 사용하므로서 에틸렌 글리콜에 대한 용해도 및 전해액의 전전도를 향상시켰으며, 붕산 및 6가 알콜을 각각 1~7% 첨가하여 전해액의 내식성 및 내전압성을 기타 가스흡착제를 첨가하여 콘덴서 제품화시 수명 특성을 향상시키도록 구성하였다.The electrolyte solution of the present invention improved the solubility in ethylene glycol and the conductivity of the electrolyte by using 2-methyl-monandicarboxylic acid, 2,4-dimethyl-4-carbomethoxy-undecandicarboxylic aicd, or ammonium salt, respectively. 1 to 7% of hexavalent alcohol was added to improve the corrosion resistance and voltage resistance of the electrolyte solution and other gas adsorbents to improve the lifespan characteristics during the commercialization of the condenser.
종래 전해액 및 본 발명의 전해액 구성과 그 특성을 아래 표 1에 나타내었다.Conventional electrolyte solution and electrolyte composition of the present invention and its characteristics are shown in Table 1 below.
[표 1]TABLE 1
[실시예 2]Example 2
본 발명의 전해액은 에틸렌 글리콜 용매에 2-methyl-monandicarboxylic acid와, 2,4-dimethyl-4-carbomethoxy-undecan dicarboxylic acid 또는 각각의 암모늄 염을 용질로 사용하고, 0.5~2%의 H2O를 첨가하여 용질의 용해도 향상과 붕산암모늄 및 6가 알콜을 각각 1~7% 첨가하여 전해액의 전도도 및 내전압성을 기타 가스흡착제를 첨가하여 콘덴서 제품화시 수명특성을 향상시키도록 구성하였다.The electrolyte solution of the present invention uses 2-methyl-monandicarboxylic acid, 2,4-dimethyl-4-carbomethoxy-undecan dicarboxylic acid or respective ammonium salts as a solute in an ethylene glycol solvent, and 0.5 to 2% of H 2 O. The solubility of solute and 1 ~ 7% of ammonium borate and hexahydric alcohol were added, respectively, and the conductivity and withstand voltage of electrolyte were added to improve the life characteristics of commercialized capacitors by adding other gas adsorbents.
종래 전해액 및 본 발명의 전해액 구성과 그 특성을 아래 표 2에 나타내었다.Conventional electrolyte solution and electrolyte composition of the present invention and its characteristics are shown in Table 2 below.
[표 2]TABLE 2
종래 및 본 발명의 전해액을 이용하여 400V~150μF의 콘덴서 제품을 제조하여 그 특성을 표 3에 표시하였다.A capacitor product of 400 V to 150 µF was prepared using conventional and electrolyte solutions of the present invention, and the characteristics thereof are shown in Table 3.
[표 3]TABLE 3
고온 부하 특성 시험은 정격 전압을 인가하여 105℃에서 2000시간 동안 실시하였으며, 특성치는 시료수 20개의 평균치이다.The high temperature load characteristics test was carried out for 2000 hours at 105 ° C by applying the rated voltage, and the characteristic value was an average value of 20 samples.
종래 A의 제품은 고온 부하 500시간 진행중 전부 펑크 불량이 발생하여 특성 측정이 불가능하였으며, 종래 B의 제품은 2000시간 진행중 2개의 시료가 펑크 불량이 발생되었다.In the conventional A product, the puncture failure occurred during the high temperature load for 500 hours, and the characteristic measurement was impossible. In the conventional B product, the puncture failure occurred in the two samples during the 2000 hours.
그러나, 본 발명의 전해액 제품은 부하 시험후에도 모든 특성이 매우 안정되고 특히 손실(tan∫) 특성이 4배 이상 향상되어 150℃ 고온에서 장시간 사용이 가능하게 되었다.However, the electrolytic solution product of the present invention, after the load test, all the properties are very stable, especially the loss (tan∫) characteristics are improved more than four times, it is possible to use for a long time at 150 ℃ high temperature.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930005373A KR960010107B1 (en) | 1993-03-31 | 1993-03-31 | Electrolyte for an aluminium condensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019930005373A KR960010107B1 (en) | 1993-03-31 | 1993-03-31 | Electrolyte for an aluminium condensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940022601A KR940022601A (en) | 1994-10-21 |
| KR960010107B1 true KR960010107B1 (en) | 1996-07-25 |
Family
ID=19353271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019930005373A KR960010107B1 (en) | 1993-03-31 | 1993-03-31 | Electrolyte for an aluminium condensor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960010107B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1005053A2 (en) | 1998-11-26 | 2000-05-31 | Okamura Oil Mills, Ltd. | Composition comprising long chain dibasic acids and electrolytic solution using thereof |
-
1993
- 1993-03-31 KR KR1019930005373A patent/KR960010107B1/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1005053A2 (en) | 1998-11-26 | 2000-05-31 | Okamura Oil Mills, Ltd. | Composition comprising long chain dibasic acids and electrolytic solution using thereof |
| EP1005053A3 (en) * | 1998-11-26 | 2004-01-07 | Okamura Oil Mills, Ltd. | Composition comprising long chain dibasic acids and electrolytic solution using thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| KR940022601A (en) | 1994-10-21 |
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