KR100234951B1 - Electrolyte composition of aluminum electrolytic condenser and manufacturing the same - Google Patents
Electrolyte composition of aluminum electrolytic condenser and manufacturing the same Download PDFInfo
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- KR100234951B1 KR100234951B1 KR1019970028311A KR19970028311A KR100234951B1 KR 100234951 B1 KR100234951 B1 KR 100234951B1 KR 1019970028311 A KR1019970028311 A KR 1019970028311A KR 19970028311 A KR19970028311 A KR 19970028311A KR 100234951 B1 KR100234951 B1 KR 100234951B1
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- 239000000203 mixture Substances 0.000 title claims abstract description 9
- 239000003792 electrolyte Substances 0.000 title abstract description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 23
- 239000003990 capacitor Substances 0.000 claims abstract description 19
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 claims abstract description 16
- KWIPUXXIFQQMKN-UHFFFAOYSA-N 2-azaniumyl-3-(4-cyanophenyl)propanoate Chemical compound OC(=O)C(N)CC1=CC=C(C#N)C=C1 KWIPUXXIFQQMKN-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229940090948 ammonium benzoate Drugs 0.000 claims abstract description 14
- JKTYGPATCNUWKN-UHFFFAOYSA-N 4-nitrobenzyl alcohol Chemical compound OCC1=CC=C([N+]([O-])=O)C=C1 JKTYGPATCNUWKN-UHFFFAOYSA-N 0.000 claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- ACVYVLVWPXVTIT-UHFFFAOYSA-N phosphinic acid Chemical compound O[PH2]=O ACVYVLVWPXVTIT-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 238000011978 dissolution method Methods 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- GJYJYFHBOBUTBY-UHFFFAOYSA-N alpha-camphorene Chemical compound CC(C)=CCCC(=C)C1CCC(CCC=C(C)C)=CC1 GJYJYFHBOBUTBY-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 description 2
- 239000001741 Ammonium adipate Substances 0.000 description 2
- 235000019293 ammonium adipate Nutrition 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- TVZISJTYELEYPI-UHFFFAOYSA-N hypodiphosphoric acid Chemical compound OP(O)(=O)P(O)(O)=O TVZISJTYELEYPI-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000000630 rising 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
- H01G9/035—Liquid electrolytes, e.g. impregnating materials
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
본 발명은 전해액의 제조시 첨가되는 성분들의 조성 및 용해방법을 적절히 제어하여, 전해액의 비저항을 낮추어 제품화시 손실각 특성을 향상시키고, 보다 광영온도 범위까지 사용할 수 있는 중압용 알루미늄 전해 콘덴서의 전해액 및 그 제조방법을 제공하고자 하는데, 그 목적이 있다.The present invention, by appropriately controlling the composition and dissolution method of the components added during the preparation of the electrolyte solution, by lowering the specific resistance of the electrolyte solution to improve the loss angle characteristics during commercialization, the electrolyte solution of the medium-pressure aluminum electrolytic capacitor that can be used up to the temperature range It is to provide a method of manufacturing the object thereof.
상기 목적을 달성하기 위한 본 발명은 중압용 알루미늄 전해 콘덴서에 사용되는 전해액에 있어서, 에틸렌 글리콜:80-86중량%(이하, "%"라 한다), 순수:5.5-8%의 용매; 암모늄 세바케이트:7-9%, 암모늄 벤조에이트:1.5-2.5%의 용질; 차아인산:0.1-0.3%, 파라 니트로벤질 알콜:0.1-0.3%의 첨가제;를 포함하는 중압용 알루미늄 콘덴서의 전해액 및 그 제조방법에 관한 것을 그 요지로 한다.The present invention for achieving the above object is an electrolyte used in an aluminum electrolytic capacitor for medium pressure, ethylene glycol: 80-86% by weight (hereinafter referred to as "%"), pure water: 5.5-8% solvent; Ammonium sebacate: 7-9%, ammonium benzoate: 1.5-2.5% solute; The present invention relates to an electrolytic solution of a medium-pressure aluminum capacitor, including hypophosphorous acid: 0.1-0.3% and paranitrobenzyl alcohol: 0.1-0.3%.
Description
본 발명은 중압용 알루미늄 전해 콘덴서에 사용되는 전해액 및 그 제조방법에 관한 것으로, 보다 상세하게는 제품화시 손실각 특성이 우수한 중압용 알루미늄 전해 콘덴서의 전해액 및 그 제조방법에 관한 것이다.The present invention relates to an electrolyte used in an aluminum electrolytic capacitor for medium pressure and a method for manufacturing the same, and more particularly, to an electrolyte solution for a medium pressure aluminum electrolytic capacitor having excellent loss angle characteristics during commercialization and a method of manufacturing the same.
일반적으로 알루미늄 전해 콘덴서는 저압용(100WV이하), 중압용(160-350WV), 고압용(400WV이상)으로 분류되며, 이러한 분류의 기준은 일반적으로 전해 콘덴서의 내부에 장입되는 전해액에 따라 결정된다.Generally, aluminum electrolytic capacitors are classified into low pressure (less than 100WV), medium pressure (160-350WV), and high pressure (more than 400WV), and the criteria for this classification are generally determined by the electrolyte loaded into the electrolytic capacitor. .
상기와 같이 분류되는 전해액 중에서 정격전압이 160-200WV정도인 중압용 알루미늄 전해 콘덴서에 사용되는 전해액의 일례를 들면, 76.3%의 에틸렌 글리콜(Ethylene Glycol)과 5.5%의 물로 이루어지는 용매, 암모늄 세바케이트(Ammonium Sebacate)와 암모늄 벤조에이트(Ammonium benzoate)로 이루어지는 용질 및 파라 니트로벤질 알콜(p-Nitrobenzyl Alcohol)과 암모늄 하이포포스파이트(Ammonium Hypophosphite)로 이루어지는 첨가제로 구성되는 전해액을 들 수 있다. 이와같이, 에틸렌 글리콜과 디에틸렌 글리콜의 혼합용매로 사용하는 전해액은 용매를 70℃로 유지한후, 용질을 투입하여 120℃와 같은 고온의 열로 용해시켜 제조한다. 상기 전해액은 혼합용매 및 혼합용질을 사용하여 다소 비저항을 낮추고 있다.Examples of the electrolyte used in the medium pressure aluminum electrolytic capacitor having a rated voltage of about 160-200 WV among the electrolytes classified as above include a solvent consisting of 76.3% ethylene glycol and 5.5% water, and ammonium sebacate ( And an electrolyte solution composed of a solute made of Ammonium Sebacate and ammonium benzoate, and an additive made of p-Nitrobenzyl Alcohol and ammonium Hypophosphite. As described above, the electrolyte solution used as a mixed solvent of ethylene glycol and diethylene glycol is prepared by maintaining the solvent at 70 ° C., and then adding a solute to dissolve it with high temperature heat such as 120 ° C. The electrolyte is somewhat lower in specific resistance by using a mixed solvent and mixed solute.
하지만, 상기와 같은 전해액은 비저항이 350-450Ω·㎝/25℃ 정도로 비교적 높은 편이어서 제품화시, 손실각(tanδ)이 크고 적용온도에 있어서도 85℃로 한정된다는 문제점이 있다.However, the above-mentioned electrolyte has a relatively high resistivity of about 350-450 Ω · cm / 25 ° C., and thus has a problem in that when the product is commercialized, the loss angle tan δ is large and the application temperature is limited to 85 ° C.
이에, 본 발명자는 상기한 바와같은 문제점을 해결하기 위하여 연구와 실험을 거듭하고, 그 결과에 근거하여 본 발명을 제안하게 된 것으로, 본 발명은 전해액의 제조시 첨가되는 성분들의 조성 및 용해방법을 적절히 제어하여, 전해액의 비저항을 낮추어 제품화시 손실각 특성을 향상시키고, 보다 광역온도범위까지 사용할 수 있는 중압용 알루미늄 전해 콘덴서의 전해액 및 그 제조방법을 제공하고자 하는데, 그 목적이 있다.Thus, the present inventors have repeatedly conducted research and experiments to solve the above problems, and based on the results, the present invention proposes a composition and a dissolution method of the components added during the preparation of the electrolyte solution. Properly controlled to lower the specific resistance of the electrolyte solution to improve the loss angle characteristics during commercialization, to provide an electrolytic solution of the medium pressure aluminum electrolytic capacitor that can be used to a wider temperature range, and its manufacturing method.
상기 목적을 달성하기 위한 본 발명은 중압용 알루미늄 전해 콘덴서에 사용되는 전해액에 있어서, 에틸렌 글리콜:80-86중량%(이하, "%"라 한다), 순수:5.5-8%의 용매; 암모늄 세바케이트:7-9%, 암모늄 벤조에이트:1.5-2.5%의 용질; 차아인산:0.1-0.3%, 파라 니트로벤질 알콜:0.1-0.3%의 첨가제;를 포함하는 중압용 알루미늄 콘덴서의 전해액에 관한 것이도, 또한, 본 발명은 중압용 알루미늄 전해 콘덴서에 사용되는 전해액을 제조하는 방법에 있어서, 에틸렌 글리콜:80-86중량%, 순수:5.5-8%를 혼합한 후, 그 혼합물에 암모늄 세바케이트:7-9%, 암모늄 벤조에이트:1.5-2.5%, 차아인산:0.1-0.3% 및 파라니트로벤질 알콜:0.1-0.3%를 투입하고 85-95℃의 온도범위로 승온하여 60-120분 동안 교반하는 것을 특징으로 하는 고압용 알루미늄 콘덴서의 전해액 제조방법에 관한 것이다.The present invention for achieving the above object is an electrolyte used in an aluminum electrolytic capacitor for medium pressure, ethylene glycol: 80-86% by weight (hereinafter referred to as "%"), pure water: 5.5-8% solvent; Ammonium sebacate: 7-9%, ammonium benzoate: 1.5-2.5% solute; The present invention also relates to an electrolytic solution of an aluminum capacitor for medium pressure containing an additive of hypophosphorous acid: 0.1-0.3% and para nitrobenzyl alcohol: 0.1-0.3%. The present invention also provides an electrolyte solution for use in an aluminum electrolytic capacitor for medium pressure. In the process, ethylene glycol: 80-86% by weight, pure water: 5.5-8% is mixed, and then the mixture is ammonium sebacate: 7-9%, ammonium benzoate: 1.5-2.5%, hypophosphorous acid: 0.1 -0.3% and paranitrobenzyl alcohol: 0.1-0.3% to a temperature range of 85-95 ℃ to a temperature range of 85-95 ℃ relates to a method for producing an electrolytic solution of a high-pressure aluminum capacitor, characterized in that for stirring for 60-120 minutes.
이하, 본 발명을 상세히 설명한다.Hereinafter, the present invention will be described in detail.
본 발명은 에틸렌 글리콜과 순수로 이루어지는 용매, 암모늄 세바케이트와 암모늄 벤조에이트로 이루어지는 용질 및 파라 니트로벤질 알콜과 차아인산으로 이루어지는 첨가제로 구성되는 전해액에 관한 것으로, 다음에서는 이들의 함유량에 대한 한정 이유를 설명한다.The present invention relates to an electrolytic solution comprising a solvent consisting of ethylene glycol and pure water, a solute consisting of ammonium sebacate and ammonium benzoate, and an additive consisting of para nitrobenzyl alcohol and hypophosphorous acid. Explain.
상기 에틸렌 글리콜은 전해질을 용해시키고 특성을 좌우하는 역할을 하는 것으로, 그 함량이 80%미만인 경우에는 용해도의 저하로 비저항이 상승하고, 86%를 초과하는 경우에는 내전압이 저하되어 신뢰성이 불량하다. 따라서, 본 발명에서는 에틸렌 글리콜의 함량을 80-86%로 한정함이 바람직하다.The ethylene glycol plays a role of dissolving the electrolyte and determining the characteristics. When the content is less than 80%, the specific resistance increases due to the decrease in solubility, and when the content exceeds 86%, the withstand voltage is lowered and the reliability is poor. Therefore, in the present invention, it is preferable to limit the content of ethylene glycol to 80-86%.
상기 순수는 전도도를 높이기 위하여 첨가하는 것으로, 그 함량이 5.5% 미만인 경우에는 내전압이 저하하며, 비저항이 상승하고, 8%를 초과하는 경우에는 신뢰성이 저하하며, 105℃와 같은 고온영역에서 제품을 사용할 수 없게된다. 따라서, 본 발명에서는 순수한 함량을 5.5-8%로 한정함이 바람직하다.The pure water is added to increase the conductivity, and if the content is less than 5.5%, the withstand voltage is lowered, the resistivity is increased, and if it is more than 8%, the reliability is lowered, and the product is heated at a high temperature region such as 105 ° C. It becomes unusable. Therefore, in the present invention, it is preferable to limit the pure content to 5.5-8%.
상기 암모늄 세바케이트 및 암모늄 벤조에이트는 주전해질 역할을 하는 것으로, 암모늄 세바케이트의 함량이 7%미만이거나 암모늄 벤조에이트의 함량이 1.5%미만인 경우에는 내전압이 저하되고, 암모늄 세바케이트의 함량이 9%를 초과하거나 암모늄 벤조에이트의 함량이 2.5%를 초과하는 경우에는 비저항이 상승하고, 용해도가 저하하는 문제점이 있다. 따라서, 본 발명에서는 암모늄 세바케이트의 함량을 7-9%로 한정하고, 암모늄 세바케이트의 함량을 1.5-2.5%로 한정함이 바람직하다.The ammonium sebacate and ammonium benzoate serve as a main electrolyte, and when the content of ammonium sebacate is less than 7% or the content of ammonium benzoate is less than 1.5%, the breakdown voltage is lowered, and the content of ammonium sebacate is 9%. If the content exceeds or the content of ammonium benzoate exceeds 2.5%, the specific resistance increases, solubility decreases. Therefore, in the present invention, it is preferable to limit the content of ammonium sebacate to 7-9%, and limit the content of ammonium sebacate to 1.5-2.5%.
상기 차아인산은 수소가스를 흡수하여 부식발생을 억제하기 위해 첨가하는 첨가제로서, 그 함량이 0.1% 미만인 경우에는 부식발생이 유발하고, 0.3%를 초과하는 경우에는 비저항이 상승하는 문제점이 있다. 따라서, 본 발명에서는 차아인산의 함량을 0.1-0.3%로 한정함이 바람직하다.The hypophosphorous acid is an additive added to absorb the hydrogen gas to suppress corrosion, and when the content is less than 0.1%, corrosion occurs, and when the content exceeds 0.3%, the specific resistance increases. Therefore, in the present invention, it is preferable to limit the content of hypophosphorous acid to 0.1-0.3%.
상기 파라 니트로벤질 알콜은 수소가스 발생을 억제하기 위해 첨가하는 첨가제로서, 그 함량이 0.1% 미만인 경우에는 수소가스가 발생하고, 0.3%를 초과하는 경우에는 내전압이 저하하는 문제점이 있다. 따라서, 본 발명에서는 파라 니트로벤질 알콜의 함량을 0.1-0.3%로 한정함이 바람직하다.The para nitrobenzyl alcohol is an additive added to suppress the generation of hydrogen gas. When the content is less than 0.1%, hydrogen gas is generated, and when the content exceeds 0.3%, the withstand voltage decreases. Therefore, in the present invention, it is preferable to limit the content of para nitrobenzyl alcohol to 0.1-0.3%.
또한, 본 발명은 상기과 같은 함량을 구성되는 전해액을 제조하는 방법에 관한 것으로, 다음에서 이를 보다 상세히 설명한다.In addition, the present invention relates to a method for producing an electrolyte having the above content, which will be described in more detail below.
본 발명에서는 상기와 같은 함량을 갖는 에틸렌 글리콜, 순수로 이루어지는 용매를 혼합한 다음, 그 혼합물에 상기한 바와같은 함량을 갖는 암모늄 세바케이트, 암모늄 벤조에이트, 파라 니트로벤질 알콜 및 차아인산을 투입하여 85-95℃의 온도범위에서 60-120분 동안 교반한다.In the present invention, by mixing a solvent consisting of ethylene glycol, pure water having the above-mentioned content, and then adding ammonium sebacate, ammonium benzoate, para nitrobenzyl alcohol and hypophosphoric acid having the above-mentioned content to the mixture 85 Stir for 60-120 minutes at a temperature range of -95 ° C.
상기 온도가 85℃에 미치지 못하거나 교반시간이 60분에 미치지 못하면, 용해가 완전히 행해지지 않아서 특성치가 제대로 발휘되지 않고, 상기 온도가 95℃를 초과하거나 교반시간이 120분을 초과하면, 비저항이 상승하는 문제점이 있기 때문이다.If the temperature does not reach 85 ° C. or the stirring time is less than 60 minutes, the dissolution is not performed completely and the characteristic value is not properly exhibited. If the temperature exceeds 95 ° C. or the stirring time exceeds 120 minutes, the specific resistance is increased. This is because there is a rising problem.
이하, 실시예를 통하여 본 발명을 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.
[실시예]EXAMPLE
에틸렌 글리콜과 순수를 혼합시킨 후, 암모늄 세바케이트, 암모늄 벤조에이트, 파라 니트로벤질 알콜 및 차아인산을 첨가하고, 가열하여 온도를 90℃로 상승시킨 다음 90분간 교반시켜 전해액을 제조하였다. 또한, 종래 방법에 의해 에틸렌 글리콜과 순수를 혼합시킨 후, 암모늄 아디페이트, 암모늄 벤조에이트, 파라 니트로벤질 알콜 및 암모늄 하이포로스파이트를 첨가하여 전해액을 제조하였다.After mixing ethylene glycol and pure water, ammonium sebacate, ammonium benzoate, para nitrobenzyl alcohol and hypophosphoric acid were added, heated to raise the temperature to 90 ° C., and stirred for 90 minutes to prepare an electrolyte solution. In addition, ethylene glycol and pure water were mixed by a conventional method, and then an ammonium adipate, ammonium benzoate, para nitrobenzyl alcohol, and ammonium hypophosphite were added to prepare an electrolyte solution.
이때, 첨가량은 하기 표1과 같았으며, 상기 제조된 전해액의 비저항(Ω·㎝/25℃), 내전압, pH를 측정하여 하기 표1에 나타내었다. 하기 표1에서 에틸렌 글리콜은 'EG'로, 암모늄 세바케이트는 'AS'로, 암모늄 벤조에이트는 'AB'로, 암모늄 에디페이트는 'AA'로, 파라 니트로벤질 알콜은 'p-NBA'로, 암모늄 하이포포스파이트는 'AH'로 표기하였다.At this time, the addition amount was as shown in Table 1, and the specific resistance (Ω · cm / 25 ℃), withstand voltage, pH of the prepared electrolyte is measured and shown in Table 1 below. In Table 1, ethylene glycol is 'EG', ammonium sebacate is 'AS', ammonium benzoate is 'AB', ammonium adipate is 'AA', and para nitrobenzyl alcohol is 'p-NBA'. , Ammonium hypophosphite is designated as 'AH'.
상기 표1에서 알 수 있는 바와같이, 본 발명의 조건을 만족하는 발명예(3, 4)은 종래예(1, 2)에 비하여 내전압특성을 동등 수준을 유지하면서, 비저항이 상당히 낮았다.As can be seen from Table 1, the invention examples (3, 4) satisfying the conditions of the present invention, while maintaining the same level of withstand voltage characteristics, compared with the conventional examples (1, 2), the specific resistance was significantly lower.
이에 반하여, 비교예(5, 6)은 본 발명과 같은 성분원소를 갖기는 하지만, 그 조성범위가 본 발명의 한정범위를 벗어나, 그 전해액 특성이 발명예(3, 4)보다 현저히 뒤떨어짐을 알 수 있다.On the other hand, Comparative Examples (5, 6) have the same element as the present invention, but the composition range is beyond the scope of the present invention, the electrolyte characteristics are significantly inferior to the invention examples (3, 4) Can be.
또한, 상기와 같이 제조된 전해액을 이용하여 알루미늄 전해 콘덴서를 제조(200WV 100㎌, ø16×26L)한 후, 주파수특성 및 신뢰성 등의 제품특성을 측정하여 그 결과를 하기 표2에 나타내었다.In addition, after the aluminum electrolytic capacitor was manufactured (200 WV 100 kHz, ø16 × 26 L) using the electrolytic solution prepared as described above, product characteristics such as frequency characteristics and reliability were measured, and the results are shown in Table 2 below.
상기 표2에서 알 수 있는 바와같이, 본 발명의 조건을 만족하는 발명예(3, 4)은 종래예(1, 2)에 비하여 주파수특성이 우수하였다. 또한, 초기 손실각특성이 우수함은 물론, 제품사용후의 손실각특성이 초기특성에 비해 거의 변화가 없었으며, 용량변화도 적었다.As can be seen from Table 2, the invention examples (3, 4) satisfying the conditions of the present invention was superior in frequency characteristics compared to the conventional examples (1, 2). In addition, the initial loss angle characteristics were excellent, and the loss angle characteristics after use of the product were almost unchanged from those of the initial characteristics, and the capacity change was also small.
이에 반하여, 비교예(5, 6)은 본 발명과 같은 성분원소를 갖기는 하지만, 그 조성범위가 본 발명의 한정범위를 벗어나, 그 주파수 특성 및 신뢰성에 있어, 발명예(3, 4) 보다 현저히 뒤떨어짐을 알 수 있다.On the contrary, the comparative examples (5, 6) have the same element as the present invention, but the composition range is beyond the scope of the present invention, and the frequency characteristics and reliability thereof are higher than those of the invention examples (3, 4). It can be seen that the remarkably inferior.
상술한 바와같이, 본 발명에 의하면, 정격전압이 160-200WV정도인 중압용 알루미늄 전해 콘덴서에 사용되는 전해액의 성분조성을 적절히 제어하므로서, 비저항이 250-350Ω·㎝/25℃정도로 낮아져, 제품화시 손실각 특성이 향상되는 중압용 알루미늄 콘덴서의 전해액이 제공되는 효과가 있다.As described above, according to the present invention, the resistivity is lowered to about 250-350 Ω · cm / 25 ° C. by appropriately controlling the composition of the electrolyte solution used for the medium voltage aluminum electrolytic capacitor having a rated voltage of about 160-200 WV. There is an effect that the electrolyte solution of the aluminum capacitor for medium pressure is improved.
Claims (2)
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| KR1019970028311A KR100234951B1 (en) | 1997-06-27 | 1997-06-27 | Electrolyte composition of aluminum electrolytic condenser and manufacturing the same |
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