KR20060038044A - Method for manufacturing a aluminum condenser - Google Patents
Method for manufacturing a aluminum condenser Download PDFInfo
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- KR20060038044A KR20060038044A KR1020040087171A KR20040087171A KR20060038044A KR 20060038044 A KR20060038044 A KR 20060038044A KR 1020040087171 A KR1020040087171 A KR 1020040087171A KR 20040087171 A KR20040087171 A KR 20040087171A KR 20060038044 A KR20060038044 A KR 20060038044A
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- electrode foil
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000003990 capacitor Substances 0.000 claims abstract description 38
- 239000011888 foil Substances 0.000 claims abstract description 33
- 239000007787 solid Substances 0.000 claims abstract description 25
- 238000004804 winding Methods 0.000 claims abstract description 13
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 11
- 239000000178 monomer Substances 0.000 claims abstract description 11
- 238000006243 chemical reaction Methods 0.000 claims abstract description 10
- 239000007800 oxidant agent Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 10
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 9
- YMMGRPLNZPTZBS-UHFFFAOYSA-N 2,3-dihydrothieno[2,3-b][1,4]dioxine Chemical compound O1CCOC2=C1C=CS2 YMMGRPLNZPTZBS-UHFFFAOYSA-N 0.000 claims abstract description 5
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical compound O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 claims abstract description 5
- 230000032683 aging Effects 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000007789 sealing Methods 0.000 claims abstract description 3
- 239000003792 electrolyte Substances 0.000 abstract description 9
- 230000001590 oxidative effect Effects 0.000 abstract description 5
- 239000000243 solution Substances 0.000 description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 6
- 239000002904 solvent Substances 0.000 description 5
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- 239000010408 film Substances 0.000 description 4
- 239000007784 solid electrolyte Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 229920000642 polymer Polymers 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 229940021013 electrolyte solution Drugs 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- LDVVMCZRFWMZSG-OLQVQODUSA-N (3ar,7as)-2-(trichloromethylsulfanyl)-3a,4,7,7a-tetrahydroisoindole-1,3-dione Chemical compound C1C=CC[C@H]2C(=O)N(SC(Cl)(Cl)Cl)C(=O)[C@H]21 LDVVMCZRFWMZSG-OLQVQODUSA-N 0.000 description 1
- 239000005745 Captan Substances 0.000 description 1
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229940117949 captan Drugs 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000008101 lactose Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical group [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 150000003839 salts Chemical group 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical compound CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- H01G9/15—Solid electrolytic capacitors
-
- 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
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/045—Electrodes or formation of dielectric layers thereon characterised by the material based on aluminium
-
- 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
- H01G9/15—Solid electrolytic capacitors
- H01G9/151—Solid electrolytic capacitors with wound foil electrodes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
본 발명에 의한 알루미늄 권취형 고체 전해콘덴서의 제조방법은, 권취 소자의 고온 처리된 양극 전극박(10)의 화성 피막을 복구하기 위해 정격 전압으로 화성하는 단계와; 상기 양극 전극박과 음극 전극박의 사이에 저밀도의 마닐라지로 이루어진 절연지(30)를 삽입하여 양극 전극박(10)과 음극 전극박(20) 및 절연지를 함께 권취시킨 권취소자를 250℃의 온도에서 3시간 열처리하고 상기 절연지를 저밀도화하는 단계와; 상기 화성 및 저밀도화하는 공정을 반복 실시 후, 저밀도화된 소자를 단량체용액인 3-에틸렌디옥시치오펜 및 4-에틸렌디옥시치오펜과 산화제 용액인 파라톨루엔설폰산 제2철을 1 : 8의 비율로 혼합한 용액에 5℃에서 침적한 후 상온에서 2시간, 130℃에서 2시간동안 건조시켜 전도성의 고분자 중합층을 형성하는 단계와; 중합이 완료된 소자를 밀봉재와 케이스에 수납 조립하는 단계와; 상기 조립된 콘덴서를 에이징하는 단계를 포함하는 것을 특징으로 한다. 이와 같은 본 발명은 단량체와 산화제 용액을 혼합하여 저온에서 함침시는 공정의 번거로움과 시간을 단축시킬 수 있으며, 저온에서의 중합 반응으로 반응의 급격한 발생 억제로 에칭홈의 내부까지 치밀한 중합층을 형성시킬 수 있어 제품이 소형화에 적합하며, 알루미늄 고체 콘덴서에 내재되어 있는 권취형 소자에 도전성 고분자를 전해질로 사용한 콘덴서로 제품의 쇼트 불량이 저감될 뿐만 아니라 고주파(100∼300㎑)에서 임피던스 및 등가직렬저항(E.S.R) 특성이 뛰어난 효과가 있다. The method for manufacturing an aluminum wound solid electrolytic capacitor according to the present invention comprises the steps of: forming at a rated voltage to recover a chemical conversion film of the cathode electrode foil 10 subjected to the high temperature treatment of the winding element; Between the positive electrode foil and the negative electrode foil was inserted an insulating paper 30 made of low density manilaji winding the positive electrode electrode 10, the negative electrode foil 20 and the insulating paper wound together at a temperature of 250 ℃ Heat-treating for 3 hours to reduce the density of the insulating paper; After repeating the above-mentioned steps of chemical conversion and low density, the low-density device was treated with 3-ethylenedioxythiophene and 4-ethylenedioxythiophene, monomer solution, and ferric toluene sulfonic acid 1: 8. Immersing the solution at a ratio of 5 ° C. and drying the solution at room temperature for 2 hours and at 130 ° C. for 2 hours to form a conductive polymer polymerization layer; Storing and assembling the polymerized element into a sealing member and a case; It characterized in that it comprises the step of aging the assembled capacitor. In the present invention, the monomer and the oxidant solution are mixed to impregnate the process when it is impregnated at low temperature, and the time can be shortened. The product is suitable for miniaturization, and it is a capacitor that uses a conductive polymer as an electrolyte in a winding-type device inherent in an aluminum solid capacitor, which not only shortens the short circuit of the product but also impedance and equivalent at high frequencies (100 to 300 kHz). The series resistance (ESR) characteristics are excellent.
Description
도 1은 본 발명에 따른 알루미늄 권취형 고체 전해콘덴서의 구조를 개략적으로 나타낸 도면이다. 1 is a view schematically showing the structure of an aluminum wound solid electrolytic capacitor according to the present invention.
<도면의 주요부분에 대한 부호의 간단한 설명><Brief description of symbols for the main parts of the drawings>
10 : 양극 전극박 20 : 음극 전극박10: anode electrode foil 20: cathode electrode foil
30 : 절연지 40 : 리이드30: insulating paper 40: lead
50 : 권지 테이프 50: roll paper tape
본 발명은 알루미늄 권취형 고체 전해콘덴서의 제조 방법에 관한 것으로, 보다 상세하게는, 알루미늄 고체 콘덴서에 내재되어 있는 권취형 소자에 도전성 고분자를 전해질로 사용한 콘덴서로 고주파(100∼300㎑)에서 임피던스 및 등가직렬저항(E.S.R) 특성이 뛰어난 알루미늄 권취형 고체 전해콘덴서의 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing an aluminum wound solid electrolytic capacitor. More specifically, the present invention relates to a winding type device inherent in an aluminum solid capacitor. The present invention relates to a method for producing an aluminum wound solid electrolytic capacitor having excellent equivalent series resistance (ESR) characteristics.
일반적으로, 알루미늄 고체 전해콘덴서는 알루미늄을 전극으로 사용하여 대 향되는 두 전극판 사이에 유전체를 개재시켜 직류전압을 인가하면 에너지(전하)를 축적하는 기능을 갖는다. 상기 알루미늄 고체콘덴서(electrolytic capacitor)는 알루미늄박막을 이용하여 제조되며, 에칭공정, 화성공정, 절단공정, 권취공정, 함침공정, 조립공정 및 재화성공정을 통해 알루미늄 전해콘덴서가 제조된다. 즉, 상기 알루미늄 고체콘덴서를 구성하는 양극박(+)과 음극박(-)의 사이에는 절연막이 삽설되어 알루미늄 고체콘덴서를 구성하는 캔에 삽입된다. 상기 알루미늄 고체콘덴서의 캔에 양극박, 절연막, 및 음극박을 삽입한 후 캔의 내부에 전해액을 주입하게 된다. 상기 전해액은 여러가지 화공약품을 조성해서 만든 액체로서 실질적인 음극역할을 한다. In general, an aluminum solid electrolytic capacitor has a function of accumulating energy (charge) when a direct current voltage is applied through a dielectric between two opposite electrode plates using aluminum as an electrode. The aluminum solid capacitor is manufactured using an aluminum thin film, and an aluminum electrolytic capacitor is manufactured through an etching process, a chemical conversion process, a cutting process, a winding process, an impregnation process, an assembly process, and a regeneration process. That is, an insulating film is inserted between the positive electrode foil (+) and the negative electrode foil (-) constituting the aluminum solid capacitor and inserted into a can constituting the aluminum solid capacitor. After the anode foil, the insulating film, and the cathode foil are inserted into the can of the aluminum solid capacitor, the electrolyte is injected into the can. The electrolyte is a liquid made by forming various chemicals and serves as a substantial cathode.
최근에는 전자기기의 디지털화 및 고주파화에 따라 알루미늄 고체콘덴서는 소형 대용량으로 고주파 영역에서 저항이 낮은 것을 요구하고 있다. 그런데 종래의 전해질로는 에틸렌글리콜(EG) 또는 감마부틸락토(GBL) 등의 용매에 4급염을 용해한 액체 전해액과, 이산화망간 또는 테트라시아노퀴노디메탄(TCNQ) 등의 고체 전해액이 있다. 상기의 액체 전해액으로는 저항이 높아 고주파에서의 대응이 어렵고, 또한 고체 전해액인 이산화망간은 질산망간의 열분해에 의해 형성되나 이산화망간의 전도도가 낮고, 테트라시아노퀴노디메탄(TCNQ)을 전해질로 이용한 콘덴서는 테트라시아노퀴노디메탄(TCNQ)의 내열성이 낮아 역시 고주파에서의 특성 대응이 어렵다는 결점이 있다. Recently, with the digitization and high frequency of electronic devices, aluminum solid capacitors are required to have low resistance in the high frequency region with a small capacity. However, conventional electrolytes include liquid electrolytes in which quaternary salts are dissolved in a solvent such as ethylene glycol (EG) or gamma butyl lactose (GBL), and solid electrolyte solutions such as manganese dioxide or tetracyanoquinomimethane (TCNQ). It is difficult to cope at high frequency because the liquid electrolyte solution is high, and manganese dioxide, which is a solid electrolyte, is formed by thermal decomposition of manganese nitrate, but the conductivity of manganese dioxide is low, and a capacitor using tetracyanoquinomimethane (TCNQ) as an electrolyte. Tetracyanoquinomethane (TCNQ) has a disadvantage in that it is difficult to cope with characteristics at high frequencies because of its low heat resistance.
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 알루미늄 고체콘덴서에 내재되는 권취형 소자에 도전성 고분자를 전해질로 사용하여 고주파에서 임피던스 및 등가직렬저항(ESR)의 특성을 크게 향상시킬 수 있는 알루미늄 권취형 고체 전해콘덴서의 제조방법을 제공하는 데 있다.The present invention has been made to solve the above problems, and an object of the present invention is to use the conductive polymer as an electrolyte in a wound device inherent in an aluminum solid capacitor to improve the characteristics of impedance and equivalent series resistance (ESR) at high frequencies. An object of the present invention is to provide a method for manufacturing an aluminum wound solid electrolytic capacitor which can be greatly improved.
상기한 목적을 달성하기 위한 본 발명에 의한 알루미늄 권취형 고체 전해콘덴서의 제조방법은 권취 소자의 고온 처리된 양극 전극박(10)의 화성 피막을 복구하기 위해 정격 전압으로 화성하는 단계와;Method for producing an aluminum wound solid electrolytic capacitor according to the present invention for achieving the above object comprises the steps of: at the rated voltage to recover the chemical conversion film of the cathode electrode foil (10) of the high temperature treatment of the winding element;
상기 양극 전극박과 음극 전극박의 사이에 저밀도의 마닐라지로 이루어진 절연지를 삽입하여 양극 전극박과 음극 전극박 및 절연지를 함께 권취시킨 권취소자를 250℃의 온도에서 3시간 열처리하고 상기 절연지를 저밀도화하는 단계와; 상기 화성 및 저밀도화하는 공정을 반복 실시 후, 저밀도화된 소자를 단량체용액인 3-에틸렌디옥시치오펜 및 4-에틸렌디옥시치오펜과 산화제 용액인 파라톨루엔설폰산 제2철을 1 : 8의 비율로 혼합한 용액에 5℃에서 침적한 후 상온에서 2시간, 130℃에서 2시간동안 건조시켜 전도성의 고분자 중합층을 형성하는 단계와; 중합이 완료된 소자를 밀봉재와 케이스에 수납 조립하는 단계와; 상기 조립된 콘덴서를 에이징하는 단계를 포함하는 것을 특징으로 한다.Between the positive electrode foil and the negative electrode foil, an insulating paper made of low density manila paper was inserted, and the winding element wound together with the positive electrode foil, the negative electrode foil, and the insulating paper was heat treated at a temperature of 250 ° C. for 3 hours to reduce the density of the insulating paper. Making a step; After repeating the above-mentioned steps of chemical conversion and low density, the low-density device was treated with 3-ethylenedioxythiophene and 4-ethylenedioxythiophene, monomer solution, and ferric toluene sulfonic acid 1: 8. Immersing the solution at a ratio of 5 ° C. and drying the solution at room temperature for 2 hours and at 130 ° C. for 2 hours to form a conductive polymer polymerization layer; Storing and assembling the polymerized element into a sealing member and a case; It characterized in that it comprises the step of aging the assembled capacitor.
이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.
도 1은 본 발명에 따른 알루미늄 권취형 고체전해 콘덴서의 구조를 개략적으로 나타낸 도면이다.1 is a view schematically showing the structure of an aluminum wound solid electrolyte capacitor according to the present invention.
본 발명에 의하면, 알루미늄 고체 전해콘덴서를 구성하는 알루미늄 양극 전 극박과 음극 전극박의 사이에 저밀도의 마닐라지를 절연지로 사용하고, 상기 양극 전극박과 절연지 및 음극 전극박을 함께 권취시킨다. 상기 양극 전극박과 절연지 및 음극 전극박을 함께 권취시켜 형성된 권취소자에 단량체로 3-에틸렌디옥시치오펜 및 4-에틸렌디옥시치오펜과 산화제 용액을 함침시켜 도전성 고분자 전해질층을 형성시키는 공정에 관한 것으로, 산화 피막 표면 및 콘덴서의 에칭홈의 내부까지 중합반응을 일으켜 치밀한 폴리에틸렌디옥시치오펜의 도전성 고분자층을 형성하기 위한 공정 순서는 다음과 같다. According to the present invention, low-density manila is used as the insulating paper between the aluminum anode electrode foil and the cathode electrode foil constituting the aluminum solid electrolytic capacitor, and the cathode electrode foil, the insulation paper and the cathode electrode foil are wound together. In the step of forming a conductive polymer electrolyte layer by impregnating 3-ethylene dioxythiophene, 4-ethylene dioxythiophene and an oxidizing agent solution in the winding device formed by winding the positive electrode foil, insulating paper and negative electrode foil together In this regard, the process sequence for the polymerization reaction to the surface of the oxide film and the inside of the etching groove of the capacitor to form a dense polyethylene dioxythiophene conductive polymer layer is as follows.
도1을 참조하여 알루미늄 권취형 고체 전해콘덴서의 제조방법을 설명하면, 먼저, 알루미늄 고체콘덴서에 사용되는 전해액은 알루미늄 고체콘덴서의 특성을 잘 구현할 수 있어야 하며, 알루미늄 고체콘덴서가 정격전압에 잘 견딜 수 있도록 하는데 많은 비중을 차지하므로 알루미늄 고체콘덴서는 스파크전압(spark voltage)값이 높아지고, 낮은 비저항값을 갖으며, 넓은 온도범위에서 사용할 수 있는 전해액을 사용해야 한다. Referring to Figure 1 describes the manufacturing method of the aluminum wound solid electrolytic capacitor, first, the electrolyte used in the aluminum solid capacitor should be able to implement the characteristics of the aluminum solid capacitor well, the aluminum solid capacitor can withstand the rated voltage well. Aluminum solid capacitors must use an electrolyte that has high spark voltage, low resistivity, and can be used in a wide temperature range.
따라서, 알루미늄 양극 전극박(10)과 음극 전극박(20)의 사이에 저밀도의 마닐라지(manila)를 절연지(30)로 하여 리이드(40)와 함께 권취시킨 소자에 순차적으로 모노머(monomer;단량체(單量體))로 3-에틸렌디옥시치오펜 및 4-에틸렌디옥시치오펜을 함침한 후 산화제와 용매의 혼합용액에 침적하며 일정온도의 고온에서 건조시킴으로서 콘덴서의 에칭홈(etching pit)의 내부까지 중합반응을 일으켜 치밀한 폴리에틸렌디옥시치오펜의 도전성 고분자층을 형성시킨다.Therefore, a monomer (monomer) is sequentially added to the element wound together with the
상기 산화제 용액으로는 파라톨루엔설폰산 제2철을 부탄올 용매에 30∼50% 희석하여 사용하였으며, 모노머와 산화제 용액의 혼합비율은 1:10∼1:20의 범위에서 선정하였으며, 용매는 메탄올, 에탄올, 부탄올 및 프로판올 등의 1가 알콜류 중에서 한가지를 선정하며, 산화제와의 혼합비율은 1:0.5∼1:1로 한다.Ferric paratoluenesulfonic acid was diluted by 30 to 50% in a butanol solvent as the oxidant solution. The mixing ratio of monomer and oxidant solution was selected in the range of 1:10 to 1:20, and the solvent was methanol, One of the monohydric alcohols such as ethanol, butanol and propanol is selected, and the mixing ratio with the oxidizing agent is 1: 0.5 to 1: 1.
본 발명의 고분자화하는 중합 공정은 권취된 소자를 먼저 화성을 실시한 후, 순수에 세척하고, 200∼280℃의 고온에서 10분∼3시간 열처리하여 절연지를 저밀도화시킨다. 상기 화성 및 저밀도화 공정을 1회 또는 2∼10회 실시 후 단량체 용액과 산화제 용액을 1:2∼1:20의 비율로 혼합한 용액에 저온(-20∼5℃의 온도 범위)에서 침적후 1차 상온에서 1∼2시간, 100℃ 이상의 고온에서 1∼3시간 동안 순차 건조하여 전도성 고분자의 중합층을 형성하였으며, 중합 완료된 소자를 밀봉재와 케이스에 수납하여 조립한 후 에이징 처리하고 콘덴서를 완성하였다.In the polymerizing polymerization step of the present invention, the wound element is first subjected to chemical conversion, washed with pure water, and heat treated at a high temperature of 200 to 280 ° C for 10 minutes to 3 hours to lower the density of the insulating paper. After one or two to ten times of the above-mentioned chemical conversion and lowering density, the solution was mixed at a low temperature (temperature range of -20 to 5 ° C) in a solution in which the monomer solution and the oxidant solution were mixed at a ratio of 1: 2 to 1:20. 1 hour to 2 hours at the first room temperature, 1 to 3 hours at a high temperature of 100 ℃ or more sequentially dried to form a polymer layer of the conductive polymer, the polymerized device is housed in a sealing material and a case, assembled and then aging treatment to complete the capacitor It was.
상기와 같이 단량체와 산화제 용액을 혼합하여 저온에서 함침시는 공정의 번거로움과 시간을 단축시킬 수 있으며, 저온에서의 중합 반응으로 반응의 급격한 발생 억제로 에칭홈의 내부까지 치밀한 중합층을 형성시킬 수 있어 제품이 소형화에 적합하다.Mixing the monomer and the oxidant solution as described above can shorten the process and time when impregnated at low temperature, and form a dense polymer layer to the inside of the etching groove by suppressing the rapid generation of the reaction by the polymerization reaction at low temperature. The product is suitable for miniaturization.
(표1)Table 1
상기한 표1은 제품구성 및 콘덴서의 적용예를 나타낸 것으로, 적용조건은 16V/22㎌ : 5ψ×6ι이다. Table 1 shows the product configuration and application examples of the capacitor, and the application conditions are 16V / 22㎌: 5ψ × 6ι.
이상 설명에서 알 수 있는 바와 같이, 본 발명은 알루미늄 고체 전해콘덴서를 구성하는 양극 전극박과 음극 전극박의 사이에 절연지로 마닐라지를 사용하고, 상기 양극 전극박과 절연지 및 음극 전극박을 함께 권취시킨다. 상기 양극 전극박과 절연지 및 음극 전극박을 함께 권취시켜 형성된 권취소자는 모노머로 3-에틸렌디옥시치오펜 및 4-에틸렌디옥시치오펜을 함침한 후 산화제와 용매의 혼합용액에 침적하며 일정온도의 고온에서 건조시키고, 콘덴서의 에칭홈의 내부까지 중합반응을 일으켜 치밀한 폴리에틸렌디옥시치오펜의 도전성 고분자층을 권취소자에 형성시켜 알루미늄 권취형 고체전해 콘덴서를 제조함으로써, 알루미늄 고체 콘덴서에 내재되어 있는 권취형 소자에 도전성 고분자를 전해질로 사용한 콘덴서로 제품의 쇼트 불량이 저감될 뿐만 아니라 고주파(100∼300㎑)에서 임피던스 및 등가직렬저항(E.S.R) 특성이 뛰어난 효과가 있다.
As can be seen from the above description, the present invention uses manila paper as an insulating paper between the positive electrode foil and the negative electrode foil constituting the aluminum solid electrolytic capacitor, and winds the positive electrode foil, the insulating paper and the negative electrode foil together. . The winding device formed by winding the positive electrode foil, the insulating paper, and the negative electrode foil together is impregnated with 3-ethylenedioxythiophene and 4-ethylenedioxythiophene as a monomer, and then immersed in a mixed solution of an oxidizing agent and a solvent and having a predetermined temperature. It is dried at a high temperature, and a polymerization reaction is carried out to the inside of the etching groove of the capacitor to form an electroconductive polymer layer of dense polyethylene dioxythiophene in the winding element to produce an aluminum wound solid electrolyte capacitor, which is inherent in the aluminum solid capacitor. As a capacitor using a conductive polymer as an electrolyte in a wound device, short-circuit defects of the product are not only reduced, but also excellent in impedance and equivalent series resistance (ESR) characteristics at high frequencies (100 to 300 kHz).
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| KR1020040087171A KR20060038044A (en) | 2004-10-29 | 2004-10-29 | Method for manufacturing a aluminum condenser |
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