KR20030032250A - Condenser for having a hybrid electrolyte structure - Google Patents

Condenser for having a hybrid electrolyte structure Download PDF

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Publication number
KR20030032250A
KR20030032250A KR1020010063939A KR20010063939A KR20030032250A KR 20030032250 A KR20030032250 A KR 20030032250A KR 1020010063939 A KR1020010063939 A KR 1020010063939A KR 20010063939 A KR20010063939 A KR 20010063939A KR 20030032250 A KR20030032250 A KR 20030032250A
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South Korea
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capacitor
conductive polymer
aluminum foil
dielectric layer
condenser
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KR1020010063939A
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Korean (ko)
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김재근
민혜경
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파츠닉(주)
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Publication of KR20030032250A publication Critical patent/KR20030032250A/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
    • H01G9/035—Liquid electrolytes, e.g. impregnating materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

Abstract

PURPOSE: A conductive polymer capacitor having a hybrid electrolytic structure is provided to improve the capacitor performance characteristic by making the electrolyte film formed on the surface of the aluminum foil for the conductive polymer capacitor form the hybrid electrolytic structure. CONSTITUTION: A dielectric layer(52) is formed on the surface of an anode aluminum foil(50). A conductive polymer layer(54) is formed on the surface of the dielectric layer(52) by way of the chemical polymerization. The aluminum foil(50) overlaid with the dielectric layer(52) and the conductive polymer layer(54) is inserted into a condenser can with other capacitor components(70,80). A liquid electrolyte solution(60) is injected into the condenser can, and the condenser can is sealed. The liquid electrolyte solution(60) is prepared by mixing ethylene glycol and ammonium salt, or dimethyl formamide and ammonium salt.

Description

하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서{Condenser for having a hybrid electrolyte structure}Conductive polymer capacitor having a hybrid electrolyte structure

본 발명은 전도성 고분자 콘덴서에 관한 것으로, 보다 상세하게는 전도성 고분자 콘덴서를 구성하는 알루미늄 포일의 표면에 형성되는 전해질층이 하이브리드 전해액 구조를 갖도록 함으로서 콘덴서의 특성을 향상시킬 수 있는 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서에 관한 것이다.The present invention relates to a conductive polymer capacitor, and more particularly, to an electrolyte layer formed on a surface of an aluminum foil constituting the conductive polymer capacitor having a hybrid electrolyte structure, thereby having a conductive electrolyte structure capable of improving the characteristics of the capacitor. It relates to a polymer capacitor.

일반적으로 Al(알루미늄) 콘덴서는 알루미늄을 전극으로 사용하여 대향되는 두 전극판 사이에 유전체를 개재시켜 직류전압을 인가하면 에너지(전하)를 축적하는 기능을 갖는다. 상기 Al 전해콘덴서(electrolytic capacitor)는 알루미늄박막을 이용하여 제조되며, 에칭공정, 화성공정, 절단공정, 권취공정, 함침공정, 조립공정 및 재화성공정을 통해 Al 전해콘덴서가 제조된다. 즉, 상기 Al 전해콘덴서를 구성하는 양극박(+)과 음극박(-)의 사이에는 절연막이 삽설되어 Al 전해콘덴서를 구성하는 캔에 삽입된다. 상기 Al 전해콘덴서의 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 Al (aluminum) 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 Al electrolytic capacitor is manufactured using an aluminum thin film, and an Al 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 Al electrolytic capacitor and inserted into a can constituting the Al electrolytic capacitor. After the positive electrode foil, the insulating film, and the negative electrode foil are inserted into the can of the Al electrolytic capacitor, the electrolyte is injected into the can. The electrolyte is a liquid made by forming various chemicals and serves as a substantial cathode.

도 1은 종래의 콘덴서용 알루미늄 박막의 표면에 형성되는 유전체층과 전해질층의 구조를 개략적으로 나타낸 도면으로서, 상기 알루미늄박막(10)의 표면은 스크래치를 실시하여 표면적을 확대하며, 상기 알루미늄박막(10)의 표면에는 유전체층(12)을 형성시킨다. 상기 유전체층(12)의 표면에는 화학중합을 통해 전해질층(14)이 형성된다. 상기 알루미늄박막(10)의 표면에 유전체층(12)이 균일하게 형성되어야 콘덴서의 용량 및 리액턴스 특성이 좋아진다. 그러나 상기 알루미늄박막(10)의 표면에 형성된 함몰부위에 유전체층(12)이 균일하게 형성되지 않아 손상부위(16)가 발생되어 알루미늄박막(10)에 쇼트(short)현상이 발생됨으로서 리액턴스의 특성이 나빠지고, 내전압 특성이 용량이 저하되는 문제점이 있다.1 is a view schematically showing the structure of a dielectric layer and an electrolyte layer formed on a surface of a conventional aluminum thin film for a capacitor, wherein the surface of the aluminum thin film 10 is scratched to enlarge the surface area, the aluminum thin film 10 The dielectric layer 12 is formed on the surface. The electrolyte layer 14 is formed on the surface of the dielectric layer 12 through chemical polymerization. When the dielectric layer 12 is uniformly formed on the surface of the aluminum thin film 10, the capacitance and reactance characteristics of the capacitor are improved. However, since the dielectric layer 12 is not uniformly formed on the recessed portion formed on the surface of the aluminum thin film 10, the damaged portion 16 is generated, and a short phenomenon occurs in the aluminum thin film 10. It worsens, and there exists a problem that a breakdown voltage characteristic falls in capacity.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로, 본 발명의목적은 전도성 고분자 콘덴서를 구성하는 알루미늄 포일의 표면에 형성되는 전해질층이 하이브리드 전해액 구조를 갖도록 함으로서 콘덴서의 특성을 향상시킬 수 있는 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서를 제공하는데 있다.The present invention has been made to solve the above problems, an object of the present invention is to improve the characteristics of the capacitor by having the electrolyte layer formed on the surface of the aluminum foil constituting the conductive polymer capacitor having a hybrid electrolyte structure. A conductive polymer capacitor having a hybrid electrolyte structure is provided.

도 1은 종래의 콘덴서용 알루미늄 박막의 표면에 형성되는 유전체층과 전해질층의 구조를 개략적으로 나타낸 도면이다.1 is a view schematically showing the structure of a dielectric layer and an electrolyte layer formed on the surface of a conventional aluminum thin film for a capacitor.

도 2는 본 발명에 따른 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서의 구조를 개략적으로 나타낸 도면이다.2 is a view schematically showing the structure of a conductive polymer capacitor having a hybrid electrolyte structure according to the present invention.

< 도면의 주요부분에 대한 부호의 간단한 설명 ><Brief description of symbols for the main parts of the drawings>

50 : 양극 알루미늄포일 52 : 유전체층50 anode aluminum foil 52 dielectric layer

54 : 전도성고분자층 60 : 전해액54 conductive polymer layer 60 electrolyte

70 : 전해지 80 : 음극 알루미늄포일70: electrolytic cell 80: cathode aluminum foil

상기 목적을 달성하기 위하여 본 발명은 양극 알루미늄포일의 표면에 유전체층을 형성시키고, 상기 유전체층의 표면에는 화학중합을 통해 전도성고분자층을 형성시키며, 상기 양극 알루미늄포일의 표면에 유전체층과 전도성고분자층을 형성시킨 후 전해지 및 음극 알루미늄포일과 함께 권취시켜 콘덴서용 캔에 넣고, 콘덴서용 캔에 액체 전해액을 주입한후 밀봉하여 제조되는 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서를 제공한다.In order to achieve the above object, the present invention forms a dielectric layer on the surface of the anode aluminum foil, and forms a conductive polymer layer on the surface of the dielectric layer through chemical polymerization, and forms a dielectric layer and a conductive polymer layer on the surface of the anode aluminum foil. The present invention provides a conductive polymer capacitor having a hybrid electrolyte structure which is manufactured by winding together with an electrolytic cell and a cathode aluminum foil, placing the same in a can for a capacitor, injecting a liquid electrolyte into the capacitor can, and sealing the same.

본 발명에 의하면, 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서는 양극 알루미늄포일의 표면에 유전체층을 형성시킨 후 화학중합을 통해 유전체층의 표면에 전도성고분자층을 형성시킨다. 상기 유전체층 및 전도성고분자층이 표면에 형성된 양극 알루미늄포일은 전해지 및 음극 알루미늄포일과 함께 권취되어 콘덴서용 캔에 삽입되고, 상기 콘덴서용 캔의 내부에는 액체 전해액을 주입한다. 상기 양극 알루미늄포일에는 유전체층 및 전도성고분자층이 형성되어 있으며, 에틸렌글리콜과 암모늄염을 혼합한 액체 전해액이나 또는 디메틸포마미드와 암모늄염을 혼합한 액체 전해액을 콘덴서용 캔의 내부에 주입하므로 콘덴서의 특성이 크게 향상된다.According to the present invention, a conductive polymer capacitor having a hybrid electrolyte structure forms a dielectric layer on the surface of the anode aluminum foil and then forms a conductive polymer layer on the surface of the dielectric layer through chemical polymerization. The positive electrode aluminum foil having the dielectric layer and the conductive polymer layer formed on the surface thereof is wound together with the electrolytic cell and the negative electrode aluminum foil and inserted into the can for capacitor, and the liquid electrolyte is injected into the capacitor can. The anode aluminum foil has a dielectric layer and a conductive polymer layer formed therein, and the liquid electrolyte mixed with ethylene glycol and ammonium salt or the liquid electrolyte mixed with dimethylformamide and ammonium salt is injected into the can for condenser. Is improved.

이하, 본 발명을 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail.

도 2는 본 발명에 따른 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서의 구조를 개략적으로 나타낸 도면이다.2 is a view schematically showing the structure of a conductive polymer capacitor having a hybrid electrolyte structure according to the present invention.

도 2를 참조하여 설명하면, 먼저, 양극 알루미늄포일(50)의 표면에는 표면적을 넓게 형성시키기 위해서 스크래칭을 실시한다. 상기 양극 알루미늄포일(50)의 표면에는 유전체층(52)을 형성시킨다. 상기 유전체층(52)은 Al2O3, Ta2O5및 Nb2O5중의 하나로 이루어진다. 상기 유전체층(52)의 표면에는 전도성고분자층(54)을 화학중합을 이용하여 형성한다. 상기 전도성고분자층(54)으로는 폴리피롤(polypyrrole) 또는 폴리아닐린(polyaniline)에 해당하며, 상기 양극 알루미늄포일(50)의 표면에는 유전체층(52)과 전도성고분자층(54)으로 2개의 층을 형성한다.Referring to FIG. 2, first, scratching is performed on the surface of the anode aluminum foil 50 so as to form a large surface area. A dielectric layer 52 is formed on the surface of the anode aluminum foil 50. The dielectric layer 52 is made of one of Al 2 O 3 , Ta 2 O 5, and Nb 2 O 5 . The conductive polymer layer 54 is formed on the surface of the dielectric layer 52 by chemical polymerization. The conductive polymer layer 54 corresponds to polypyrrole or polyaniline, and forms two layers of a dielectric layer 52 and a conductive polymer layer 54 on the surface of the anode aluminum foil 50. .

상기 양극 알루미늄포일(50)은 전해지(70) 및 음극 알루미늄포일(80)과 함께 권취되어 콘덴서용 캔(도시 안됨)에 삽입된다. 상기 양극 알루미늄포일(50)의 상면에는 전해지(70)가 위치하고, 상기 전해지(70)의 상면에는 음극 알루미늄포일(80)이 위치한다. 상기 양극 알루미늄포일(50), 전해지(70) 및 음극 알루미늄포일(80)을 함께 권취시켜 콘덴서용 캔에 삽입한 후 콘덴서용 캔의 내부에 액체 전해액(60)을 주입한다.The positive electrode aluminum foil 50 is wound together with the electrolytic cell 70 and the negative electrode aluminum foil 80 and inserted into a can for capacitor (not shown). An electrolytic cell 70 is positioned on an upper surface of the positive electrode aluminum foil 50, and a negative electrode aluminum foil 80 is positioned on an upper surface of the electrolytic cell 70. The positive electrode aluminum foil 50, the electrolytic cell 70, and the negative electrode aluminum foil 80 are wound together and inserted into the capacitor can, and then the liquid electrolyte 60 is injected into the capacitor can.

상기 콘덴서용 캔에 주입되는 액체 전해액(60)은 에틸렌글리콜(ethylene glycol)과 암모늄염을 혼합하여 제조되거나 또는 디메틸포마미드(dimethyl formamide)와 암모늄염을 혼합하여 제조한다. 상기 액체 전해액(60)은 양극 알루미늄포일(50)과 전해지(70) 및 음극 알루미늄포일(80)의 사이에 채워지며,전해지(70)에 의해 일측 방향으로 몰리는 현상이 방지된다.The liquid electrolyte 60 injected into the condenser can is prepared by mixing ethylene glycol and ammonium salt or by mixing dimethyl formamide and ammonium salt. The liquid electrolyte 60 is filled between the positive electrode aluminum foil 50, the electrolytic cell 70, and the negative electrode aluminum foil 80, and is prevented from being driven in one direction by the electrolytic cell 70.

이상 설명에서 알 수 있는 바와 같이, 본 발명은 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서는 양극 알루미늄포일의 표면에 유전체층을 형성시킨 후 화학중합을 통해 유전체층의 표면에 전도성고분자층을 형성시킨다. 상기 유전체층 및 전도성고분자층이 표면에 형성된 양극 알루미늄포일은 전해지 및 음극 알루미늄포일과 함께 권취되어 콘덴서용 캔에 삽입되고, 상기 콘덴서용 캔의 내부에는 액체 전해액을 주입한다. 상기 양극 알루미늄포일에는 유전체층 및 전도성고분자층이 형성되어 있으며, 에틸렌글리콜과 암모늄염을 혼합한 액체 전해액이나 또는 디메틸포마미드와 암모늄염을 혼합한 액체 전해액을 콘덴서용 캔의 내부에 주입하므로 콘덴서의 특성이 크게 향상된다.As can be seen from the above description, in the present invention, a conductive polymer capacitor having a hybrid electrolyte structure forms a dielectric layer on the surface of the anode aluminum foil and then forms a conductive polymer layer on the surface of the dielectric layer through chemical polymerization. The positive electrode aluminum foil having the dielectric layer and the conductive polymer layer formed on the surface thereof is wound together with the electrolytic cell and the negative electrode aluminum foil and inserted into the can for capacitor, and the liquid electrolyte is injected into the capacitor can. The anode aluminum foil has a dielectric layer and a conductive polymer layer formed therein, and the liquid electrolyte mixed with ethylene glycol and ammonium salt or the liquid electrolyte mixed with dimethylformamide and ammonium salt is injected into the can for condenser. Is improved.

Claims (2)

양극 알루미늄포일의 표면에 유전체층을 형성시키고, 상기 유전체층의 표면에는 화학중합을 통해 전도성고분자층을 형성시키며, 상기 양극 알루미늄포일의 표면에 유전체층과 전도성고분자층을 형성시킨 후 전해지 및 음극 알루미늄포일과 함께 권취시켜 콘덴서용 캔에 넣고, 콘덴서용 캔에 액체 전해액을 주입한후 밀봉하여 제조되는 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서.A dielectric layer is formed on the surface of the anode aluminum foil, and a conductive polymer layer is formed on the surface of the dielectric layer through chemical polymerization. A dielectric layer and a conductive polymer layer are formed on the surface of the anode aluminum foil, together with an electrolytic cell and a cathode aluminum foil. A conductive polymer capacitor having a hybrid electrolyte structure that is wound up and placed in a can for capacitor, injecting a liquid electrolyte into the can for capacitor, and then sealing. 제 1 항에 있어서, 상기 액체 전해액은 에틸렌글리콜(ethylene glycol)과 암모늄염을 혼합하여 제조되거나 또는 디메틸포마미드(dimethyl formamide)와 암모늄염을 혼합하여 제조하는 것을 특징으로 하는 하이브리드 전해질 구조를 갖는 전도성 고분자 콘덴서.The conductive polymer capacitor of claim 1, wherein the liquid electrolyte is prepared by mixing ethylene glycol and an ammonium salt, or by mixing dimethyl formamide and ammonium salt. .
KR1020010063939A 2001-10-17 2001-10-17 Condenser for having a hybrid electrolyte structure KR20030032250A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10218262B1 (en) 2017-09-25 2019-02-26 Otis Elevator Company Hybrid direct current link system for a regenerative drive
KR20210054381A (en) 2019-11-05 2021-05-13 주식회사 수산에너솔 Method for manufacturing hybrid aluminum polymer capacitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10218262B1 (en) 2017-09-25 2019-02-26 Otis Elevator Company Hybrid direct current link system for a regenerative drive
KR20210054381A (en) 2019-11-05 2021-05-13 주식회사 수산에너솔 Method for manufacturing hybrid aluminum polymer capacitor

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