KR960006852B1 - Electrolytes of electrolytic condensor - Google Patents
Electrolytes of electrolytic condensor Download PDFInfo
- Publication number
- KR960006852B1 KR960006852B1 KR1019920025781A KR920025781A KR960006852B1 KR 960006852 B1 KR960006852 B1 KR 960006852B1 KR 1019920025781 A KR1019920025781 A KR 1019920025781A KR 920025781 A KR920025781 A KR 920025781A KR 960006852 B1 KR960006852 B1 KR 960006852B1
- Authority
- KR
- South Korea
- Prior art keywords
- electrolyte
- improve
- electrolytic capacitor
- electrolytic
- acid
- Prior art date
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 13
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims abstract description 12
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 claims abstract description 11
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000001361 adipic acid Substances 0.000 claims abstract description 5
- 235000011037 adipic acid Nutrition 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000004327 boric acid Substances 0.000 claims abstract description 4
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims 2
- 239000005711 Benzoic acid Substances 0.000 claims 1
- 235000010233 benzoic acid Nutrition 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000002739 metals Chemical class 0.000 claims 1
- 150000002828 nitro derivatives Chemical class 0.000 claims 1
- 150000003512 tertiary amines Chemical class 0.000 claims 1
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 12
- 239000008151 electrolyte solution Substances 0.000 description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008014 freezing Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 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 전해콘덴서의 구동용 전해액에 관한 것으로서 특히 에틸렌 글리콜 보다 어는 점이 낮은 모노메틸포름아미드(NMF)를 용매로 하고 이에 붕산(Borid acid)과 아드프산(Adipic acid)을 전해질로 용해하여 전도도를 향상시켰으며 트리에틸아민을 첨가하여 PH를 알루미늄이 용해하지 않는 5∼8 범위로 조절하고 기타 제품의 수명특성을 향상시키기 위하여 파라니트로 페놀 및 파라니트로 안식 향산을 첨가하여 전해액을 구성하여 광역의 온도범위에서 사용이 가능하고 또한 순수(pure H2O)의 미사용으로 고온시 전해액의드라이 업(Dry up)에 따른 전해콘덴서의 용량감소 현상을 현저히 개선할 수 있도록된 전해큰뎬서의 구동용전해액에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic solution for driving an electrolytic capacitor, and in particular, monomethylformamide (NMF) having a lower freezing point than ethylene glycol is used as a solvent, and boric acid and adipic acid are dissolved in an electrolyte to improve conductivity. In addition, triethylamine was added to adjust the pH in the range of 5-8, in which aluminum does not dissolve, and in order to improve the life characteristics of other products, paranitrophenol and paranitrobenzoic acid were added to form an electrolytic solution. It can be used in the range, and the use of pure water (pure H 2 O) in the driving electrolyte of electrolytic capacitors to significantly improve the capacity reduction of the electrolytic capacitor due to dry up of the electrolyte at high temperature It is about.
일반적인 종래의 알루미늄 전해콘덴서의 전해액으로서는 에틸렌 글리콜과 같은 다가알콜 용매에 무기산과 아드프산과 같은 이염기성 산을 주용질로 하고 용해도 증대 및 전해액의 화성성증대를 위해 순수를 첨가한 전해액이 많이 이용되었다.In general, as an electrolyte solution of a conventional aluminum electrolytic capacitor, an electrolyte solution having a polyalcohol solvent such as ethylene glycol as a dilute acid such as inorganic acid and adipic acid as a main solute and pure water added for increasing solubility and increasing chemical conversion of the electrolyte is used. .
그러나 상기와 같은 종래의 에틸렌 글리콜과 순수의 혼합된 전해액에서는 전해콘덴뎬서에 적용하여 제품화하었을때 제 특성이 -40℃에서 열화되어 사용온도 범위가 -25℃∼85℃ 내외로 매우 좁은 범위로 한정되며 또한 고온방치 특성에서 온갖 특성이 초기치 보다 현저히 떨어지며 콘덴서로 제품화하여 사용시 전압인가에 따라 필연적으로 발생하는 수소 가스에 의하여 콘덴서가 자주 쇼트(short) 또는 오픈(open)되어 콘덴서로서의 사용이 불가능하게 되는 문게점이 있었다.However, in the conventional mixed electrolyte solution of ethylene glycol and pure water as described above, when applied to an electrolytic capacitor and commercialized, its characteristics deteriorate at -40 ° C, and the operating temperature range is -25 ° C to 85 ° C. In addition, the characteristics of the high-temperature standing characteristics are significantly lower than the initial values, and the capacitors are frequently shorted or opened due to hydrogen gas inevitably generated due to voltage application when they are commercialized as capacitors, making them impossible to use as capacitors. There was a questionnaire.
본 발명은 상기와 같은 에틸렌 글리콜 보다 어는 점이 낮은 모노 메틸포름아미드(NMF)를 용매로 하고 이에 붕산(Borid acid)과 아디핀산(Adipic acid)을 전해질로 용해하여 전도도를 향상시켰으며 트리에틸아민을 첨가하여 PH를 알루미늄이 용해하지 않는 5∼8 범위로 조절하고 기타 제품의 수명특성을 향상시키기 위하여 파라니트로 페놀 또는 파라니트로 안식 향산을 첨가하여 전해액을 구성함으로써 광역의 온도범위에서 사용이 가능하고 또한 순서(pure H2O)의 미사용으로 고온시 전해액의 드라이 업(Dry up)에 따른 전해콘덴서의 용량감소 현상을 현저히 개선할 수 있게한 것으로서 이하 본 발명의 바람직한 실시예를 첨부한 도면을 의하여 상세히 설명하면 다음과 같다.In the present invention, monomethylformamide (NMF) having a lower freezing point than ethylene glycol is used as a solvent, and boric acid and adipic acid are dissolved in an electrolyte to improve conductivity and triethylamine. The pH can be used in a wide range of temperature by adding PH to nitro phenol or paranitrobenzoic acid in order to adjust the pH to 5-8 range where aluminum does not dissolve and to improve the life characteristics of other products. By not using the pure H 2 O, it is possible to remarkably improve the capacity reduction phenomenon of the electrolytic capacitor due to the dry up of the electrolyte at high temperature, which will be described in detail with reference to the accompanying drawings. The explanation is as follows.
본 발명의 실시예에 따른 조성비를 보면Looking at the composition ratio according to the embodiment of the present invention
상기와 같은 종전과 본 발명의 전해액으로 10V/1000μF의 알루미늄 전해콘덴서를 제작하여 전해콘덴서의 제품특성을 비교하여 본 결과 아래와 같이 나타났다.As a result of comparing the product characteristics of the electrolytic capacitor by producing a 10V / 1000μF aluminum electrolytic capacitor with the electrolytic solution of the prior and the present invention as shown above.
(수치는 30개의 평균치임)(Values are 30 averages)
상기에 나타낸 바와같이 -55℃ 특성중 종전 전해액은 전해액의 응고로 정확한 특성이 체크(check)되지 않았으며 임피던스 비는 초기 임피던스와의 비이며, 1000시간후의 특성은 105℃로 1000시간 정격전압을 인가한 후의 특성을 비고한 것이다.As shown above, the conventional electrolyte solution of -55 ° C characteristics was not checked by the solidification of the electrolyte, and the impedance ratio was the ratio with the initial impedance, and the characteristic after 1000 hours was 105 ° C at 1000 ° C. It is the characteristic after application.
상기에서와 같이 본 발명의 전해액은 고주파에서 임피던스값이 적고 -55℃ 특성이 종전에 비하여 현저히 개선되고 105℃의 고온에서도 용량변화율 및 tanδ등 제반 특성이 향상되어 광역의 온도범위에서 장시간 사용 가능한 전해콘덴서 구동용 전해액으로 적합하게 하였다.As described above, the electrolytic solution of the present invention has a low impedance value at high frequency, a -55 ° C characteristic is remarkably improved compared to the past, and various characteristics such as capacity change rate and tanδ are improved even at a high temperature of 105 ° C, so that it can be used for a long time in a wide temperature range. It was suited as an electrolytic solution for capacitor driving.
이상에서 설명한 바와같이 본 발명은 종래 전해액과 비교하여 알루미늄 전해콘덴서로 게조시 저온특성이 개선되어 광역의 온도범위에서 장시간 사용가능하며 고주파, 저임피던스 특성이 개선되는 등 종래의 전해액보다 우수한 효과가 있는 발명이다.As described above, the present invention is an invention having an effect that is superior to the conventional electrolyte solution, such as improving the low temperature characteristics when the aluminum electrolytic capacitor when compared to the conventional electrolyte solution can be used for a long time in a wide temperature range and improve the high frequency, low impedance characteristics to be.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920025781A KR960006852B1 (en) | 1992-12-28 | 1992-12-28 | Electrolytes of electrolytic condensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920025781A KR960006852B1 (en) | 1992-12-28 | 1992-12-28 | Electrolytes of electrolytic condensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR940016314A KR940016314A (en) | 1994-07-23 |
| KR960006852B1 true KR960006852B1 (en) | 1996-05-23 |
Family
ID=19346897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019920025781A KR960006852B1 (en) | 1992-12-28 | 1992-12-28 | Electrolytes of electrolytic condensor |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR960006852B1 (en) |
-
1992
- 1992-12-28 KR KR1019920025781A patent/KR960006852B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR940016314A (en) | 1994-07-23 |
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