KR100264840B1 - Eletrolytic condenser electrolyte and manufacture the same - Google Patents
Eletrolytic condenser electrolyte and manufacture the same Download PDFInfo
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- KR100264840B1 KR100264840B1 KR1019950039882A KR19950039882A KR100264840B1 KR 100264840 B1 KR100264840 B1 KR 100264840B1 KR 1019950039882 A KR1019950039882 A KR 1019950039882A KR 19950039882 A KR19950039882 A KR 19950039882A KR 100264840 B1 KR100264840 B1 KR 100264840B1
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- 238000004519 manufacturing process Methods 0.000 title claims description 10
- 239000003792 electrolyte Substances 0.000 title abstract description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 19
- VIJMMQUAJQEELS-UHFFFAOYSA-N n,n-bis(ethenyl)ethenamine Chemical compound C=CN(C=C)C=C VIJMMQUAJQEELS-UHFFFAOYSA-N 0.000 claims abstract description 14
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 claims abstract description 13
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 20
- 239000008151 electrolyte solution Substances 0.000 claims description 13
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000012046 mixed solvent Substances 0.000 claims description 10
- STGNLGBPLOVYMA-TZKOHIRVSA-N (z)-but-2-enedioic acid Chemical compound OC(=O)\C=C/C(O)=O.OC(=O)\C=C/C(O)=O STGNLGBPLOVYMA-TZKOHIRVSA-N 0.000 claims description 5
- 239000004327 boric acid Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- GHXRKGHKMRZBJH-UHFFFAOYSA-N boric acid Chemical compound OB(O)O.OB(O)O GHXRKGHKMRZBJH-UHFFFAOYSA-N 0.000 claims description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 3
- 239000011976 maleic acid Substances 0.000 claims description 3
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 abstract description 5
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- BJEPYKJPYRNKOW-REOHCLBHSA-N (S)-malic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O BJEPYKJPYRNKOW-REOHCLBHSA-N 0.000 abstract 3
- BJEPYKJPYRNKOW-UHFFFAOYSA-N alpha-hydroxysuccinic acid Natural products OC(=O)C(O)CC(O)=O BJEPYKJPYRNKOW-UHFFFAOYSA-N 0.000 abstract 3
- 235000011090 malic acid Nutrition 0.000 abstract 3
- 239000001630 malic acid Substances 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- 238000005868 electrolysis reaction Methods 0.000 abstract 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000003028 elevating effect Effects 0.000 abstract 1
- 150000003839 salts Chemical group 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- PQMFVUNERGGBPG-UHFFFAOYSA-N (6-bromopyridin-2-yl)hydrazine Chemical compound NNC1=CC=CC(Br)=N1 PQMFVUNERGGBPG-UHFFFAOYSA-N 0.000 description 2
- PKVGKJDLLALEMP-UHFFFAOYSA-N O=C1CCCO1.O=C1CCCO1 Chemical compound O=C1CCCO1.O=C1CCCO1 PKVGKJDLLALEMP-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 2
- 235000019838 diammonium phosphate Nutrition 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 1
- 208000004547 Hallucinations Diseases 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003411 electrode reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- ZHNUHDYFZUAESO-UHFFFAOYSA-N formamide Substances NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000002085 irritant Substances 0.000 description 1
- 231100000021 irritant Toxicity 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- MGJXBDMLVWIYOQ-UHFFFAOYSA-N methylazanide Chemical compound [NH-]C MGJXBDMLVWIYOQ-UHFFFAOYSA-N 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
본 발명은 저압용(50WV 이하) 알루미늄 전해콘덴서에 내장되어 사용되는 전해액 및 그 제조방법에 관한 것으로, 보다 상세하게는, 고전도도 및 제품화시 손실각(Tan δ) 특성을 향상시킨 전해액 및 그 제조방법에 관한 것이다.The present invention relates to an electrolyte solution embedded in a low pressure (50 WV or less) aluminum electrolytic capacitor and a manufacturing method thereof, and more particularly, to an electrolyte solution having improved high conductivity and loss angle (Tan δ) characteristics during commercialization and its It relates to a manufacturing method.
알루미늄 전해콘덴서는 전기 전자기기의 중요한 구성요소의 하나로 표면을 전기분해 산화에 의해 산화피막으로 변화시킨 알루미늄을 전극으로 하고 그 사이에 전해액을 두는 구조로 제작된다.Aluminum electrolytic capacitors are one of the important components of electrical and electronic equipment, and are manufactured in a structure in which aluminum whose surface is changed into an oxide film by electrolytic oxidation is used as an electrode, and an electrolyte is placed therebetween.
상기와 같은 구조를 갖는 전해콘덴서는 사용중에 그 내부에서 다음과 같은 화학반응이 일어나므로, 그 특성을 계속 유지하기 위해서는 시간의 경과에 무관하게, 전해액 및 유전체인 알루미늄 산화 박막을 초기의 안정한 상태로 유지해야만 한다.The electrolytic capacitor having the structure as described above undergoes the following chemical reactions during its use. Therefore, in order to maintain its characteristics, the aluminum oxide thin films, which are electrolytes and dielectrics, are kept in an initial stable state regardless of the passage of time. You must keep it.
알루미늄 전해콘덴서에 전압을 걸면 전해액과 알루미늄 전극 계면의 전극반응에 의해 전하가 이동하여 양극 계면에서는 산화반응이, 음극 계면에서는 환원반응이 일어나고 동시에 전해액 사이를 이온이 이동하여 전류가 흐르게 된다. 이때, 전해액은 이온 이동의 모체 역할을 하게 된다.When voltage is applied to the aluminum electrolytic capacitor, the charge is transferred by the electrode reaction between the electrolyte solution and the aluminum electrode interface, the oxidation reaction occurs at the anode interface, and the reduction reaction occurs at the cathode interface. In this case, the electrolyte serves as a parent of ion migration.
이와같은 알루미늄 전해콘덴서의 특성은 주로 전해액의 성질 및 성분에 크게 좌우되며, 그 특성치는 통상 내전압, 정전용량, 및 손실각 등으로 나타낸다.The characteristics of such an aluminum electrolytic capacitor are largely dependent on the properties and components of the electrolyte, and the characteristic values thereof are usually represented by breakdown voltage, capacitance, loss angle, and the like.
내전압은 전해콘덴서에 일정 이상의 전압을 걸면, 유전체의 물리적 성질(유전율)이 변하여 더이상 콘덴서의 역할을 할 수 없게 되고, 전극, 산화피막, 전해액 사이에서 스파크가 튀는 현상이 나타날 때의 전압이며, 정전용량은 전하를 가두어둘 수 있는 정도를 나타내는 것으로, 유전체의 유전율에 비례한다.The withstand voltage is a voltage when a certain amount of voltage is applied to the electrolytic capacitor, and the physical properties (dielectric constant) of the dielectric are changed so that the capacitor can no longer function as a capacitor. Capacity represents the extent to which charge can be trapped and is proportional to the dielectric constant of the dielectric.
알루미늄 전해콘덴서는 저압용, 중고압용 및 고압용등으로 분류되며, 이러한 분류기준은 전해콘덴서의 내부에 장입되는 전해액에 따라 결정된다.Aluminum electrolytic capacitors are classified into low pressure, medium pressure and high pressure, and these classification criteria are determined according to the electrolyte loaded into the electrolytic capacitor.
저압용 알루미늄 전해콘덴서는 통상 정격전압이 50WV 이하인 것으로, 이러한 저압용 알루미늄 전해콘덴서에 사용되는 전해액은 종래 N-메틸 포름 아미드(N-Formamide : NMF)의 단독용매를 가열하여 약 70℃의 온도까지 상승후, 용질인 말레익산(Maleic Acid : MA) 및 보릭산(Boric Acid : BA), 그리고 첨가제인 P-니트로 벤조익산(P-Nitrobenzoic Acid : PNBA) 및 암모늄 포스페이트 디베이직(Ammonium Phosphate Dibasic : APD)를 첨가하여 완전 용해한 다음, 첨가제인 트리 에틸렌 아민(Tri Ethylene Amine : TEA)을 넣고 가열하여 약 120℃의 온도까지 상승시켜 제조하였다.Low pressure aluminum electrolytic capacitors usually have a rated voltage of 50 WV or less, and the electrolyte used in such low pressure aluminum electrolytic capacitors is conventionally heated to a temperature of about 70 ° C. by heating a single solvent of N-methylamide (N-Formamide: NMF). After elevation, solute maleic acid (MA) and boric acid (BA), and additives P-nitrobenzoic acid (PNBA) and ammonium phosphate dibasic (APD) ) Was added and completely dissolved, and then triethylene amine (TEA) as an additive was added thereto, followed by heating to raise the temperature to about 120 ° C.
그러나 상기와 같이 제조된 전해액은 용매로 독성이 강한 NMF를 사용하므로서 작업자의 인체에 해를 끼치는 문제점이 있으며, 또한 환경규제 물질 대상에 들어갈 예상이며 환각 및 마약류 제조에 사용되는 약품인 문제가 있다.However, the electrolytic solution prepared as described above has a problem of harming the human body of the worker by using NMF having high toxicity as a solvent, and is also expected to enter the environmental regulatory substance and has a problem of being used in the manufacture of hallucinations and drugs.
이에, 본 발명자는 상기한 바와 같은 문제점을 해결하기 위하여 연구와 실험을 행하고 그 결과에 근거하여 본 발명을 제안하게 된 것으로, 본 발명은 전해액의 제조시 첨가되는 성분들의 조성과 그 첨가량 및 제조조건을 적절히 제어하여 전도도 특성이 우수하고 제품에 적용시 손실각 특성이 우수한 저압용 알루미늄 전해콘덴서용 전해액 및 그 제조방법을 제공하고자 하는데, 그 목적이 있다.Thus, the present inventors have conducted research and experiments to solve the problems as described above, and proposed the present invention based on the results. The present invention provides a composition of the components to be added during the preparation of the electrolyte solution, its addition amount and manufacturing conditions. The present invention provides a low pressure aluminum electrolytic capacitor electrolyte solution and a method of manufacturing the same, having excellent conductivity characteristics and excellent loss angle characteristics when applied to a product by appropriately controlling the present invention.
이하, 본 발명에 대하여 설명한다.EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated.
본 발명은 중량%로, γ-부티롤악톤(γ-Butyrolactone) 및 에틸렌글리콜(Ethylene Glycol)의 혼합용매 : 63-73%, 말레익산(Maleic Acid) : 13-19%, 보릭산(Boric Acid) : 0.5-1.5%, P-니트로 벤조익 산(P-Nitrobenzoic Acid) : 0.4-1.0% 및 트리에틸렌 아민(Tri Ethyleneamine) : 12-16%로 조성되는 저압용 알루미늄 전해콘덴서용 전해액에 관한 것이다.The present invention by weight, γ-butyrolactone (γ-Butyrolactone) and ethylene glycol (Ethylene Glycol) mixed solvent: 63-73%, maleic acid (Maleic Acid): 13-19%, Boric acid (Boric Acid ): 0.5-1.5%, P-Nitrobenzoic Acid: 0.4-1.0% and Tri Ethyleneamine: 12-16% of the electrolytic solution for low pressure aluminum electrolytic capacitors. .
또한, 본 발명은 저압용 알루미늄 전해콘덴서용 전해액의 제조방법에 있어서, γ-부티롤악톤(γ-Butyrolactone) 및 에틸렌글리콜(Ethylene Glycol)의 혼합용매 : 63-73중량%를 가열하여 70℃의 온도까지 승온한 후, 여기에 말레익산(Maleic Acid) : 13-19중량%, 보릭산(Boric Acid) : 0.5-1.5중량%, P-니트로 벤조익 산(P-Nitrobenzoic Acid) : 0.4-1.0중량% 및 트리 에틸렌 아민(Tri Ethyleneamine) : 12-16중량%를 첨가한 다음, 가열하여 90℃의 온도까지 승온하여 유지하면서 교반하는 것을 포함하여 이루어지는 저압용 알루미늄 전해콘덴서용 전해액의 제조방법에 관한 것이다.In addition, the present invention is a method for producing an electrolytic solution for a low pressure aluminum electrolytic capacitor, a mixed solvent of γ-butyrolactone (γ-Butyrolactone) and ethylene glycol (Ethylene Glycol): heated to 63-73% by weight of 70 ℃ After heating up to temperature, maleic acid (maleic acid): 13-19% by weight, boric acid (Boric acid): 0.5-1.5% by weight, P-nitrobenzoic acid: 0.4-1.0 Weight% and triethylene amine (Tri Ethyleneamine): a method for producing an electrolytic solution for low pressure aluminum electrolytic capacitors comprising the addition of 12-16% by weight, followed by heating and stirring while maintaining the temperature at a temperature of 90 ℃ will be.
이하, 본 발명에 대하여 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail.
상기한 목적을 달성하기 위하여 본 발명에서는 먼저 γ-부티롤악톤(γ-Butyrolactone) 및 에틸렌글리콜(Ethylene Glycol)의 혼합용매 : 63-73중량%(이하,‘%’라 한다.)를 가열하여 70℃의 온도까지 승온시킴이 바람직한데, 그 이유는 다음과 같다.In order to achieve the above object, the present invention first heats a mixed solvent of γ-butyrolactone and ethylene glycol: 63-73 wt% (hereinafter, referred to as '%'). It is preferable to raise the temperature to a temperature of 70 ℃, the reason is as follows.
γ-부티롤악톤(γ-Butyrolactone) 및 에틸렌글리콜(Ethylene Glycol)의 혼합용매는 용해도와 전도도를 적절히 조절하는 역할을 하는 성분으로, 그 사용량이 63% 이하 일 경우에는 용해도가 떨어져 용질의 희석에 용이하지 않은 문제점이 있으며, 73% 이상일 경우에는 전도도 저하의 문제점이 있으므로, 혼합용매의 사용량은 63-73%범위로 제한함이 바람직하다.The mixed solvent of γ-butyrolactone and ethylene glycol is a component that controls solubility and conductivity properly.When the amount is 63% or less, the solubility decreases so as to dilute the solute. There is a problem that is not easy, and if more than 73% there is a problem of lowering the conductivity, the amount of the mixed solvent is preferably limited to 63-73% range.
또한 혼합용매에 용질 및 기타 첨가제들을 첨가하기 전에 가열하여 승온시 그 온도가 70℃ 이하일 경우에는 전해액 제조 완료후 또는 저온시 석출과 응고의 문제점이 있고, 70℃ 이상일 경우에는 전도도 저하의 문제점이 있으므로, 가열온도는 70℃로 함이 바람직하다.In addition, if the temperature is 70 ° C. or lower at the time of heating and heating before adding the solute and other additives to the mixed solvent, there is a problem of precipitation and coagulation after the completion of the preparation of the electrolyte or at a low temperature. It is preferable to make heating temperature into 70 degreeC.
상기와 같이 혼합용매를 가열한 후에는 여기에 말레익산(Maleic Acid) : 13-19중량%, 보릭산(Boric Acid) : 0.5-1.5중량%, P-니트로 벤조익 산(P-Nitrobenzoic Acid) : 0.4-1.0중량% 및 트리 에틸렌 아민(Tri Ethyleneamine) : 12-16중량%를 첨가하고 가열하여 90℃의 온도까지 승온하여 유지하면서 교반하는 것이 바람직한데, 그 이유는 다음과 같다.After heating the mixed solvent as described above, maleic acid (Maleic Acid): 13-19% by weight, boric acid (Boric Acid): 0.5-1.5% by weight, P-nitrobenzoic acid : 0.4-1.0% by weight and Tri-Ethyleneamine: 12-16% by weight is preferably added by heating and stirring to maintain a temperature of 90 ℃, the reason is as follows.
말레익산(Maleic Acid)은 주전해질로서 고전도도 물질이며 내구성에 좋은 역할을 하는 성분으로, 그 첨가량이 13% 이하일 경우는 주전해질로서의 역할을 못하며 따라서 내구성 및 전도도 향상에 기여할 수 없는 문제점이 있으며, 19% 이상일 경우에는 과포화로서 용해도에 문제점이 있기 때문이다.Maleic acid (maleic acid) is a high conductivity material and a component that plays a good role in durability as the main electrolyte, when the addition amount is less than 13% does not play a role as the main electrolyte, and thus there is a problem that can not contribute to the improvement of durability and conductivity. This is because when it is more than 19%, there is a problem in solubility as supersaturation.
보릭산(Boric Acid)은 무기계로서 내전압 상승의 역할을 하는 성분으로, 그 첨가량이 0.5% 이하일 경우에는 내전압 향상에 도움을 주지 못하는 문제점이 있으며, 1.5% 이상일 경우에는 비저항 상승으로 인한 특성저하의 문제점이 있기 때문이다.Boric acid is an inorganic component that plays a role of increasing the withstand voltage, and when the addition amount is 0.5% or less, there is a problem that does not help to improve the withstand voltage. Because of this.
P-니트로 벤조익 산(P-Nitrobenzoic Acid)은 수소가스 흡수제의 역할을 하는 성분으로, 그 첨가량이 0.4% 이하일 경우에는 수소가스의 흡수제로서의 역할이 저하되는 문제점이 있으며, 1.0% 이상일 경우에는 수소가스 흡수제의 역할을 하지 못하는 문제점이 있기 때문이다.P-nitrobenzoic acid (P-Nitrobenzoic Acid) is a component that acts as a hydrogen gas absorber, when the addition amount is less than 0.4% there is a problem that the role as a hydrogen gas absorber is deteriorated, and when more than 1.0% hydrogen This is because there is a problem that does not act as a gas absorber.
트리 에틸렌 아민(Tri Etyleneamine)은 말레인 산과의 반응으로 3급염으로 치환되는 역할을 하는 성분으로, 그 첨가량이 12% 이하일 경우에는 3급염으로의 치환이 잘 이루어지지 않는 문제점이 있으며, 16% 이상일 경우에는 아미드화 반응이 크게 작용하여 내구성에 문제점이 있기 때문이다.Tri ethylene amine (Tri Etyleneamine) is a component that is substituted by the reaction with the maleic acid to the tertiary salt, when the addition amount is less than 12% there is a problem that the substitution with the tertiary salt is not made well, more than 16% In this case, the amidation reaction is largely acted because there is a problem in durability.
상기와 같이 MA, BA, PNBA및 TEA를 첨가한 후에는 가열하여 90℃의 온도까지 승온시켜 교반함이 바람직한데, 그 이유는 교반온도가 90℃ 이하일 경우에는 첨가되는 전해질 및 첨가제의 용해도가 떨어져 특성에 문제점이 있으며, 90℃ 이상일 경우에는 고온으로 인한 전도도 악화의 문제점이 있기 때문이다.After the addition of MA, BA, PNBA, and TEA as described above, it is preferable to heat and stir at a temperature of 90 ° C., because when the stirring temperature is 90 ° C. or less, the solubility of the added electrolyte and additive is poor. This is because there is a problem in the characteristics, if the 90 ℃ or more there is a problem of deterioration of conductivity due to high temperature.
이상과 같은 방법으로 저압용 알루미늄 전해콘덴서용 전해액을 제조하게 되면 종래의 전해액의 경우보다 전도도(비저항)가 향상되어 제품화시 손실각을 좋게하며, 환경적인 면에서 용매로 독성이 큰 NMF 보다 저 자극성인 GBL+EG의 혼합용매를 사용하므로서 작업환경 개선의 효과가 있다.When the low pressure aluminum electrolytic capacitor electrolyte is manufactured by the above method, the conductivity (specific resistance) is improved compared to the conventional electrolyte solution, so that the loss angle is improved during commercialization, and in terms of environment, it is less irritant than NMF, which is toxic as a solvent. By using the mixed solvent of GBL + EG, it is effective to improve the working environment.
또한 본 발명은 제품화시 제조 코스트 측면에서 기존품 대비 그 절감 효과가 우수하며, 3급염의 전해액으로서 4급염의 봉구재료로의 누액현상으로 인한 전해액의 드라이 업(Dry Up) 현상을 방지할 수 있는 효과가 있다.In addition, the present invention is excellent in the reduction effect compared to the existing product in terms of manufacturing cost, and can prevent the dry up phenomenon of the electrolyte due to the leakage of the quaternary salt into the sealing material of the quaternary salt as the electrolyte of the tertiary salt. It works.
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