KR20030032263A - Method for making a condenser - Google Patents
Method for making a condenser Download PDFInfo
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- KR20030032263A KR20030032263A KR1020010063959A KR20010063959A KR20030032263A KR 20030032263 A KR20030032263 A KR 20030032263A KR 1020010063959 A KR1020010063959 A KR 1020010063959A KR 20010063959 A KR20010063959 A KR 20010063959A KR 20030032263 A KR20030032263 A KR 20030032263A
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- capacitor
- oxidizing agent
- capacitor element
- dried
- concentration
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- 238000000034 method Methods 0.000 title claims description 7
- 239000003990 capacitor Substances 0.000 claims abstract description 41
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 26
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 21
- 239000000178 monomer Substances 0.000 claims abstract description 21
- 230000003647 oxidation Effects 0.000 claims abstract description 18
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 18
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 claims abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000007800 oxidant agent Substances 0.000 claims description 26
- 238000001035 drying Methods 0.000 claims description 14
- 239000011259 mixed solution Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 abstract description 7
- 230000001590 oxidative effect Effects 0.000 description 11
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 8
- 238000001354 calcination Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000005245 sintering Methods 0.000 description 3
- 239000002322 conducting polymer Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- DETRQRDCMMUQGQ-UHFFFAOYSA-N [Ag].c1cc[nH]c1 Chemical compound [Ag].c1cc[nH]c1 DETRQRDCMMUQGQ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- MIVBAHRSNUNMPP-UHFFFAOYSA-N manganese(2+);dinitrate Chemical compound [Mn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O MIVBAHRSNUNMPP-UHFFFAOYSA-N 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
- 238000003466 welding Methods 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
- H01G9/025—Solid electrolytes
-
- 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
- H01G9/0029—Processes of manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Manufacturing & Machinery (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
Abstract
Description
본 발명은 전도성 고분자 콘덴서에 관한 것으로, 보다 상세하게는 전도성 고분자 콘덴서를 구성하는 전해질층을 복합 산화중합을 통해 형성시켜 저농도에서 고농도화함으로서 콘덴서용 소자의 내부 함침성을 증대시켜 용량을 증대시킬 수 있는 복합 산화중합을 이용한 전도성 고분자 콘덴서의 제조방법에 관한 것이다.The present invention relates to a conductive polymer capacitor, and more particularly, to form an electrolyte layer constituting the conductive polymer capacitor through a complex oxidation polymerization to increase the concentration at low concentrations to increase the internal impregnation of the capacitor element to increase the capacity. The present invention relates to a method for producing a conductive polymer capacitor using a complex oxidation polymerization.
일반적인 고체 전해질 콘덴서의 제조방법은 먼저, 성형단계에서 탄탈분말에 접착제(binder)역할을 하는 D-Camper를 혼합한 후 용제를 건조 제거시킨 다음 평량하여 원통형 또는 각형 펠릿(Pellet)에 양극 리드선인 탄탈선을 삽입시켜 일정한 밀도로 성형을 한다. 상기 성형단계 다음에 소결단계에서는 성형된 소자를 진공 소결로에 장진후 10-5㎜Hg 정도의 진공중에서 1600℃∼2000℃ 정도로 가열하여 접착제 제거와 동시에 소결을 한다. 상기 소결단계 다음에 화성단계에서는 2개의 전극과 그 사이에 삽설되는 유전체로 구성되는 캐패시터의 유전체를 생성하는 단계로 전해액중에 소결소자를 넣어서 직류전압(화성전압)을 인가하여 탄탈금속의 표면에 산화피막(Ta2O5)을 생성하게 되며, 이것이 유전체가 된다. 상기 화성단계 다음에 소성단계에서는 화성단계에서 생성된 산화피막의 표면에 전해질의 이산화망간층을 형성한다. 즉, 소자의 기공내부에 있는 산화피막의 표면에 이산화망간층을 부착시키기 위하여 질산망간의 수용액중에 소자를 침적하여 함침시킨 후 가열분해하여 이산화망간층을 얻게 된다. 상기 소성단계 다음에 조립단계에서는 소성단계에서 이산화망간층을 형성한 후의 소자에 대해서 외장까지의 필요한 카본도포, 은페이스트도포 및 리드용접을 함으로써 외장공정까지가 완료된다.A general method of manufacturing a solid electrolyte capacitor is, first, mixing D-Camper, which acts as a binder in tantalum powder in the forming step, drying and removing the solvent, and then weighing the tantalum, which is an anode lead wire, into a cylindrical or square pellet. Insert the wire to form a certain density. In the sintering step following the molding step, the molded device is loaded in a vacuum sintering furnace and heated in a vacuum of about 10 -5 mmHg to about 1600 ° C to 2000 ° C to sinter at the same time as removing the adhesive. After the sintering step, in the chemical conversion step, a dielectric of a capacitor composed of two electrodes and a dielectric inserted therebetween is generated. It produces a coating Ta 2 O 5 , which becomes a dielectric. In the calcining step followed by the calcining step, a manganese dioxide layer of an electrolyte is formed on the surface of the oxide film generated in the calcining step. In other words, in order to attach the manganese dioxide layer on the surface of the oxide film in the pores of the device, the manganese dioxide layer is obtained by dipping and impregnating the device in an aqueous solution of manganese nitrate. After the firing step, in the assembling step, the process after the manganese dioxide layer is formed in the firing step is completed by the necessary carbon coating, silver paste coating, and lead welding to the exterior of the device.
이때 상기 소성단계에서 산화중합 또는 MnO2층에 전해중합을 실시하여 유전체층(Ta2O5)의 표면에 전도성고분자층을 형성시키므로서 전해질층을 형성하게 된다. 또 다른 방법으로 전해질층을 형성시키기 위해서 산화중합을 중복하여 실시하거나 또는 산화중합과 전해중합을 병행하여 실시하여 유전체층(Ta2O5)의 표면에 전도성고분자층을 형성시키므로서 전해질층을 형성하게 된다.At this time, the electrolytic polymerization is performed on the oxidation polymerization or the MnO 2 layer in the firing step to form the conductive polymer layer on the surface of the dielectric layer Ta 2 O 5 to form the electrolyte layer. Another method is to form an electrolyte layer by forming a conductive polymer layer on the surface of the dielectric layer (Ta 2 O 5 ) by performing oxidative polymerization or overlapping oxidative polymerization and electrolytic polymerization in order to form an electrolyte layer. do.
그런데, 상기 산화중합을 1회 실시하게 되면 저용량을 갖으면서 고손실의 특성을 갖게 되고, MnO2층에 전해중합을 실시하게 되면 고저항(104Ω∼106Ω)의 특성을 갖으며, 산화중합과 전해중합을 중복하여 실시하게 되면 공정이 복잡하여 생산성이 저하되며, 산화중합만을 중복하여 실시하게 되면 고주파수의 손실특성이 저하되는 문제점이 있다.However, when the oxidation polymerization is performed once, it has a low capacity while having a low capacity, and when electrolytic polymerization is performed on the MnO 2 layer, it has a high resistance (10 4 Ω to 10 6 Ω), When the oxidation polymerization and the electrolytic polymerization are carried out in duplicate, the process is complicated and the productivity is lowered. When the oxidation polymerization is carried out only in duplicate, the loss characteristics of the high frequency are deteriorated.
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 전도성 고분자 콘덴서를 구성하는 전해질층을 복합 산화중합을 통해 형성시켜 저농도에서 고농도화함으로서 콘덴서용 소자의 내부 함침성을 증대시켜 용량을 증대시킬 수 있는 복합 산화중합을 이용한 전도성 고분자 콘덴서의 제조방법을 제공하는데 있다.The present invention has been made to solve the above problems, and an object of the present invention is to increase the internal impregnation of the capacitor element by forming an electrolyte layer constituting the conductive polymer capacitor through a complex oxidation polymerization to high concentration at low concentration The present invention provides a method for producing a conductive polymer capacitor using a composite oxidation polymerization that can increase the capacity.
상기 목적을 달성하기 위하여 본 발명은 전도성 고분자 콘덴서를 제조하기 위하여 유전체층이 형성된 콘덴서용 소자를 1차적으로 저농도의 산화제에 함침을 시킨 후 건조를 하고, 2차적으로 모노머에 함침을 시킨 후 건조시키며, 3차적으로 고농도의 산화제에 함침을 한 후 건조를 하며, 4차적으로 모노머에 함침을 한 후 건조시키며, 상기 산화중합을 위한 산화제 용액은 암모늄퍼설페이트와 물을 혼합한 혼합용액이 되고, 모노머용액은 피롤과 아세톤니트릴을 혼합한 용액이 되며, 모노머의 농도는 1.5∼3㏖/ℓ가 되는 복합 산화중합을 이용한 전도성 고분자 콘덴서의 제조방법을 제공한다.In order to achieve the above object, the present invention primarily impregnates a capacitor element with a dielectric layer formed thereon to a low concentration of an oxidizing agent to dry the conductive polymer capacitor, and then, after impregnating the monomer secondly and drying, Thirdly, after impregnating with a high concentration of oxidant and drying, fourthly, after impregnating with monomer and drying, the oxidant solution for oxidative polymerization becomes a mixed solution of ammonium persulfate and water, and monomer solution Silver pyrrole and acetonitrile are mixed solution, the monomer concentration is 1.5 to 3 mol / L provides a method for producing a conductive polymer capacitor using a composite oxidation polymerization.
본 발명에 의하면, 전도성 고분자 콘덴서를 구성하는 콘덴서용 소자의 표면에 유전체층을 형성시킨 후 저농도의 산화제에 함침을 시킨 후 건조시키고, 모노머에 함침을 시킨 후 건조시키며, 고농도의 산화제에 함침을 시킨 후 건조시키고, 모노머에 함침을 시킨 후 건조시키는 공정을 실시함으로서 공정이 단순하여 생산성이 향상되고, 다른 농도를 갖는 산화제로 산화중합을 중복하여 실시함으로서 저저항성을 갖는 전도성 고분자 콘덴서를 제조하게 된다.According to the present invention, after forming a dielectric layer on the surface of the capacitor element constituting the conductive polymer capacitor, it is impregnated with a low concentration of the oxidizing agent and dried, after impregnating the monomer and dried, and impregnated with a high concentration of the oxidizing agent By drying, impregnating the monomer and then drying, the process is simple, the productivity is improved, and the conducting polymer capacitor having low resistance is produced by repeating the oxidation polymerization with an oxidizing agent having a different concentration.
이하, 본 발명을 설명하면 다음과 같다.Hereinafter, the present invention will be described.
먼저, 전도성 고분자 콘덴서(도시 안됨)를 구성하는 콘덴서용 소자(Ta)(도시 안됨)의 표면에는 유전체층(Ta2O5)이 형성된다. 상기 콘덴서용 소자는 니오븀(Nb)이나 알루미늄(Al)으로도 사용할 수 있다. 상기 유전체층이 형성된 콘덴서용 소자를 저농도의 산화제에 1차적으로 함침시킨후 건조시킨다. 상기 산화제로 사용되는 산화제 용액은 암모늄퍼설페이트(Ammonium per sulfate)와 물(H2O)을 혼합한 혼합액이다. 상기 저농도의 산화제는 0.1∼0.5㏖/ℓ가 된다.First, a dielectric layer Ta 2 O 5 is formed on the surface of a capacitor element Ta (not shown) constituting a conductive polymer capacitor (not shown). The capacitor element can also be used as niobium (Nb) or aluminum (Al). The capacitor element on which the dielectric layer is formed is first impregnated with a low concentration of oxidizing agent and then dried. The oxidant solution used as the oxidant is a mixed solution in which ammonium per sulfate and water (H 2 O) are mixed. The said low concentration oxidizing agent becomes 0.1-0.5 mol / L.
상기 콘덴서용 소자를 건조시킨 후 2차적으로 모노머(monomer)에 함침을 시킨후 건조시킨다. 상기 모노머용액은 피롤(Pyrrole)과 아세톤니트릴(Acetonitrile)을 혼합한 혼합용액이 되며, 상기 모노머의 농도는 1.5∼3㏖/ℓ가 된다.After the capacitor element is dried, the monomer is impregnated with secondary and dried. The monomer solution is a mixed solution in which pyrrole and acetonitrile are mixed, and the monomer concentration is 1.5 to 3 mol / l.
상기 콘덴서용 소자를 건조시킨 후 3차적으로 고농도의 산화제에 함침시킨 후 건조시킨다. 상기 고농도의 산화제는 저농도의 산화제보다 0.3∼1.0㏖/ℓ가 높은 0.4∼1.5㏖/ℓ가 된다. 상기 콘덴서용 소자를 건조시킨 후 4차적으로 모노머에 함침시킨 후 건조시킨다. 상기 콘덴서용 소자는 저농도의 산화제에 함침시킨 후 건조시키고, 모노머에 함침시킨 후 건조시키며, 다시 고농도의 산화제에 함침시킨 후 건조시키고, 모노머에 함침시킨 후 건조시키므로서 콘덴서용 소자가 저저항을 갖도록 하게 되고, 산화중합만을 반복함으로서 제조공정이 단순화되어 생산성이 향상된다.After drying the capacitor element, it is impregnated with a high concentration of an oxidizing agent and dried. The high concentration of the oxidizing agent is 0.4 to 1.5 mol / L, which is 0.3 to 1.0 mol / L, which is higher than that of the low concentration of the oxidizing agent. After drying the capacitor element, the monomer is impregnated with the monomers and dried. The capacitor element is impregnated with a low concentration of oxidant and dried, impregnated with a monomer and dried, and then impregnated with a high concentration of oxidant and dried, and then impregnated with a monomer and dried so that the capacitor element has low resistance. By repeating only the oxidation polymerization, the manufacturing process is simplified and the productivity is improved.
또한, 상기 저농도의 산화제와 고농도의 산화제를 이용하여 산화중합을 중복하여 실행시킨 후 전해중합을 실행하여 전도성고분자층을 형성시키게 되며, 상기 전도성고분자층에 의해 콘덴서용 소자의 용량과 손실률이 향상되는 고특성을 갖게 된다.In addition, by using the low concentration of the oxidizing agent and the high concentration of the oxidizing agent is carried out by overlapping the oxidative polymerization is carried out electrolytic polymerization to form a conductive polymer layer, the capacity and loss rate of the capacitor element is improved by the conductive polymer layer It has high characteristics.
이상 설명에서 알 수 있는 바와 같이, 본 발명은 전도성 고분자 콘덴서를 구성하는 콘덴서용 소자의 표면에 유전체층을 형성시킨 후 저농도의 산화제에 함침을 시킨 후 건조시키고, 모노머에 함침을 시킨 후 건조시키며, 고농도의 산화제에 함침을 시킨 후 건조시키고, 모노머에 함침을 시킨 후 건조시키는 공정을 실시함으로서 공정이 단순하여 생산성이 향상되고, 다른 농도를 갖는 산화제로 산화중합을 중복하여 실시함으로서 저저항성을 갖는 전도성 고분자 콘덴서를 제조하게 된다.As can be seen from the above description, the present invention forms a dielectric layer on the surface of the capacitor element constituting the conductive polymer capacitor, and then impregnated with a low concentration of the oxidizing agent, followed by drying, impregnated with the monomer and drying, high concentration Impregnated with an oxidizing agent, and then dried, impregnated with a monomer, followed by drying, the process is simple, productivity is improved, and conducting polymer having low resistance by repeating oxidation polymerization with an oxidant having a different concentration The capacitor is manufactured.
Claims (3)
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|---|---|---|---|
| KR1020010063959A KR20030032263A (en) | 2001-10-17 | 2001-10-17 | Method for making a condenser |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020010063959A KR20030032263A (en) | 2001-10-17 | 2001-10-17 | Method for making a condenser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050089476A (en) * | 2004-03-05 | 2005-09-08 | 파츠닉(주) | Manufacturing method of tantalum condenser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050089476A (en) * | 2004-03-05 | 2005-09-08 | 파츠닉(주) | Manufacturing method of tantalum condenser |
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