KR0152001B1 - Electrolyte for a low-pressure electrolytic condenser - Google Patents
Electrolyte for a low-pressure electrolytic condenserInfo
- Publication number
- KR0152001B1 KR0152001B1 KR1019950025504A KR19950025504A KR0152001B1 KR 0152001 B1 KR0152001 B1 KR 0152001B1 KR 1019950025504 A KR1019950025504 A KR 1019950025504A KR 19950025504 A KR19950025504 A KR 19950025504A KR 0152001 B1 KR0152001 B1 KR 0152001B1
- Authority
- KR
- South Korea
- Prior art keywords
- present
- electrolyte
- weight
- electrolytic
- low
- Prior art date
Links
- 239000003792 electrolyte Substances 0.000 title description 13
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical group OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000003990 capacitor Substances 0.000 claims abstract description 17
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 16
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001741 Ammonium adipate Substances 0.000 claims abstract description 7
- 235000019293 ammonium adipate Nutrition 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 6
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 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 5
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 claims abstract description 4
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 5
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims description 4
- 229930195725 Mannitol Natural products 0.000 abstract description 3
- 235000010355 mannitol Nutrition 0.000 abstract description 3
- 239000000594 mannitol Substances 0.000 abstract description 3
- 239000004254 Ammonium phosphate Substances 0.000 abstract 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 abstract 1
- 235000019289 ammonium phosphates Nutrition 0.000 abstract 1
- 230000007306 turnover Effects 0.000 abstract 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 239000001361 adipic acid Substances 0.000 description 3
- 235000011037 adipic acid Nutrition 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000012046 mixed solvent Substances 0.000 description 2
- JKTYGPATCNUWKN-UHFFFAOYSA-N 4-nitrobenzyl alcohol Chemical compound OCC1=CC=C([N+]([O-])=O)C=C1 JKTYGPATCNUWKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-L adipate(2-) Chemical compound [O-]C(=O)CCCCC([O-])=O WNLRTRBMVRJNCN-UHFFFAOYSA-L 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- QQRGOZKHLWDWHF-UHFFFAOYSA-H dialuminum;hexanedioate Chemical compound [Al+3].[Al+3].[O-]C(=O)CCCCC([O-])=O.[O-]C(=O)CCCCC([O-])=O.[O-]C(=O)CCCCC([O-])=O QQRGOZKHLWDWHF-UHFFFAOYSA-H 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01G9/02—Diaphragms; Separators
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
본 발명은 전해 콘덴서에 사용되는 전해액에 관한 것으로, 전해액의 성분 및 그 함량을 적절히 제어하므로서 제품에 적용시 신뢰성 특성이 우수한 저압용 전해콘덴서용 전해액을 제공하고자 하는데, 그 목적이 있다.The present invention relates to an electrolytic solution used in an electrolytic capacitor, and to provide an electrolytic solution for a low pressure electrolytic capacitor having excellent reliability characteristics when applied to a product by appropriately controlling the components and contents thereof.
상기한 목적을 달성하기 위한 본 발명은 용매로 에틸렌글리콜+H20:80-90중량%, 용질로 암모늄 아디페이트:9-18중량%, 마니톨, 파라니트로 벤조익산 및 암노늄 포스페이트 디베지이직으로 이루어지는 그룹중 선택된 1종 또는 2종 이상의 첨가제:1-2중량%로 조성되는 저압용 전해콘덴서용 전해액을 제공함을 그 요지로 한다.The present invention for achieving the above object is ethylene glycol + H 2 0: 80-90% by weight, solute ammonium adipate: 9-18% by weight, mannitol, paranitro benzoic acid and ammonium phosphate dibeji It is an object of the present invention to provide an electrolyte solution for low pressure electrolytic capacitors, which is composed of one or two or more additives selected from the group consisting of turnover: 1-2 wt%.
Description
제1도는 본 발명에 부합되는 발명예와 그렇지 못한 비교예의 전해액을 제품에 적용시 초기특성치인 정전용량, 손실각 및 누설전류의 변화를 나타낸 그래프.1 is a graph showing changes in capacitance, loss angle, and leakage current, which are initial characteristics when the electrolyte solution of the invention example and the comparative example according to the present invention is applied to a product.
제2도는 본 발명에 부합되는 발명예와 그렇지 못한 비교예의 전해액을 제품에 적용시 내구성을 시간변화에 따른 용량변화율 및 손실각으로 나타낸 그래프.Figure 2 is a graph showing the capacity change rate and loss angle with time when durability when applying the electrolyte solution of the invention example and the comparative example according to the present invention to the product.
제3도는 본 발명에 부합되는 발명예와 그렇지 못한 비교예의 전해액을 제품에 적용시 고온저장성을 시간변화에 따른 용량변화율 및 손실각으로 나타낸 그래프.3 is a graph showing the capacity change rate and loss angle with time change when the electrolyte solution of the invention example and the comparative example according to the present invention is applied to a product.
본 발명은 전해 콘덴서에 사용되는 전해액에 관한 것으로, 보다 상세하게는, 전해액의 성분 및 그 함량을 조절하므로서 제품의 신뢰성이 우수한 100WV 이하급의 저압용 전해콘덴서에 사용되는 전해액에 관한 것이다.The present invention relates to an electrolytic solution used in an electrolytic capacitor, and more particularly, to an electrolytic solution used for a low pressure electrolytic capacitor of a class of 100 WV or less, which is excellent in reliability of a product by controlling an ingredient and its content.
전해 콘덴서는 금속을 전해산화하여 한쪽 극으로하고, 전해질을 다른 극으로 한 콘덴서로서, 극성이 있고, 금속에 양(+)의 전압을 주어서 사용한다. 이와같은 전해 콘덴서는 체적이 작은데 비해 대단히 큰 용량을 얻을 수 있으며, 그 종류에는 알루미늄 전해콘덴서, 탄탈 전해콘덴서등이 있다.An electrolytic capacitor is a capacitor having electrolytic oxidation of a metal to one pole and an electrolyte to the other pole. The electrolytic capacitor has a polarity and is used by applying a positive voltage to the metal. Such an electrolytic capacitor has a very small capacity compared to a small volume, and examples thereof include aluminum electrolytic capacitors and tantalum electrolytic capacitors.
전해 콘덴서의 특성은 내부에 장입되는 전해액에 의해 주로 영향을 받게 되는데, 이러한 전해액은 전기적 특성에 따라 저압용(100WV 이하), 중고압용(100WV-400WV), 및 고압용(400WV 이상)으로 분류된다.The characteristics of the electrolytic capacitor are mainly influenced by the electrolyte that is charged therein. These electrolytes are classified into low pressure (100 WV or less), high pressure (100 WV-400 WV), and high pressure (400 WV or more), depending on the electrical properties. .
상기와 같이 분류되는 전해액 중에서 저압용 전해액에서는 전기전도도 특성이 특히 중요한데, 이를 위해서는 용해도가 좋아야 하며 다량의 이온 생성이 요구된다.Among the electrolytes classified as described above, the electrical conductivity property is particularly important in the low-pressure electrolyte solution, which requires good solubility and requires a large amount of ions to be produced.
기존에 사용되는 저압용 전해액은 주용매로 에틸렌글리콜, 전해질로 알모늄 아디페이트 및 아디픽산을 사용하고, 여기에 첨가제로 PNBA 및 암모늄 포스페이트 디베이직(Am-phosphate Dibasic)을 첨가하여 제조된다.Conventional low pressure electrolytes are prepared by using ethylene glycol as the main solvent, aluminum adipate and adipic acid as electrolytes, and PNBA and ammonium phosphate dibasic as additives.
그러나, 상기와 같은 종래의 저압용 전해액은 6.3-100WV의 전압범위에서 사용할 수 있도록 내전압을 향상시키고자 암모늄 아디페이트(Ammonium Adipate)와 아디피산(Adipic Acid)의 혼합용질을 사용하므로서 전도도의 악화를 초래하여 저전압의 제품에서 손실(Tan δ)문제가 발생되는 문제점이 있다.However, the conventional low-pressure electrolyte solution as described above uses a mixed solute of ammonium adipate and adipic acid to improve the breakdown voltage so that it can be used in the voltage range of 6.3-100 WV. As a result, a loss (Tan δ) problem occurs in a low voltage product.
이에, 본 발명자는 상기한 문제점을 해결하여 고전도도화를 달성할 뿐만 아니라, 제품의 신뢰성을 향상시키기 위하여 연구와 실험을 행하고 그 결과에 근거하여 본 발명을 제안하게 된 것으로, 본 발명은 전해액의 성분 및 그 함량을 적절히 제어하므로서, 제품에 적용시 신뢰성 특성이 우수한 저압용 전해콘덴서용 전해액을 제공하고자 하는데, 그 목적이 있다.Accordingly, the present inventors have solved the above problems to achieve high conductivity, as well as to conduct research and experiments to improve the reliability of the product and to propose the present invention based on the results. By appropriately controlling the component and its content, it is to provide a low-pressure electrolytic capacitor electrolyte solution excellent in the reliability characteristics when applied to the product, the purpose is.
이하, 본 발명을 설명한다.Hereinafter, the present invention will be described.
본 발명은 용매로 에틸렌글리콜+H2O:80-90중량%, 용질로 암모늄 아디페이트:9-18중량%, 마니톨, 파라니트로 벤조익산 및 암모늄 포스페이트 디베이직으로 이루어지는 그룹중에서 선택된 1종 또는 2종 이상의 첨가제:1-2중량%로 조성되는 저압용 전해 콘덴서용 전해액에 관한 것이다.The present invention is a solvent selected from the group consisting of ethylene glycol + H 2 O: 80-90% by weight, solute ammonium adipate: 9-18% by weight, mannitol, paranitro benzoic acid and ammonium phosphate dibasic It is related with the electrolyte solution for low pressure electrolytic capacitors comprised by 2 or more types of additives: 1-2 weight%.
이하, 본 발명을 보다 상세히 설명한다.Hereinafter, the present invention will be described in more detail.
상기한 목적을 달성하기 위하여 본 발명에서는 전해액을 상기와 같이 조성되도록 함이 바람직하며, 그 이유는 다음과 같다.In order to achieve the above object, in the present invention, it is preferable to configure the electrolyte as described above, and the reason thereof is as follows.
본 발명에서는 전해액의 고전도도화를 위해 요구되는 다량의 이온을 생성시키기 위하여 전해질의 량을 증가시킬 수 있도록 용해도를 고려하여 용매를 에틸렌 글리콜과 물의 혼합용매를 사용하는 것이 바람직하며, 그 함량이 80중량% 이하일 경우에는 용해도의 저하로 전도도 저하 및 용질 석출의 문제점이 있으며, 90중량% 이상일 경우에는 내전압약화 및 내구성에 문제점이 있기 때문에, 그 함량은 80-90중량%로 제한함이 바람직하다.In the present invention, it is preferable to use a mixed solvent of ethylene glycol and water in consideration of the solubility to increase the amount of the electrolyte in order to generate a large amount of ions required for high conductivity of the electrolyte, the content is 80 If the weight% or less, there is a problem of lowering the conductivity and precipitation of the solute due to a decrease in solubility, and if the weight is more than 90% by weight, there is a problem in the breakdown voltage and durability, it is preferable to limit the content to 80-90% by weight.
또한 본 발명에서는 종래와 같이 용질을 암모늄 아디페이트와 아디픽산의 혼합용질을 사용할 경우 아디픽산이 전도도 특성에 악영향을 끼친다는 사실을 고려하여 용질은 암모늄 아디페이트 단독만을 사용하는 것이 바람직하며, 그 함량이 9중량% 이하일 경우에는 이온생성의 감소로 전도도 저하의 문제점이 있으며, 18중량% 이상일 경우에는 용질과다로 인한 내전압 악화 및 내구성에 문제점이 있기 때문에, 그 함량은 9-18중량%로 제한함이 바람직하다.In addition, in the present invention, in consideration of the fact that when a mixed solute of ammonium adipate and adipic acid is used as in the prior art, the solute is preferably used only with ammonium adipate. If the content is less than 9% by weight, there is a problem of lowering conductivity due to the reduction of ion generation. If the content is more than 18% by weight, the withstand voltage deterioration and durability due to excessive solutes are limited, so the content is limited to 9-18% by weight. This is preferred.
본 발명에서는 내구성 및 가스발생에 의한 내부 증기압 상승을 고려하여 첨가제로서 마니톨(Marnitol), 파라니트로벤조익산(P-Nitro Benzoic Acid) 및 암모늄 포스 페이트 디베이직(Ammonium phosphate Dibasic)중 선택된 1종 단독 또는 2종 이상 복합으로 사용함이 바람직하며, 그 함량이 1% 이하일 경우에는 수소가스의 다량 발생으로 인한 내부증기압 상승의 문제점이 있으며, 2% 이상일 경우에는 이온생성은 감소시키고 전도도 악화 및 내전압 저하의 문제점이 있으므로, 그 함량은 1-2%로 제한함이 바람직하다.In the present invention, in consideration of the durability and the increase in the internal vapor pressure due to gas generation, one selected from Marnitol, P-Nitro Benzoic Acid and Ammonium phosphate Dibasic as an additive alone Or it is preferable to use in combination of two or more, if the content is less than 1%, there is a problem of increasing the internal vapor pressure due to the generation of a large amount of hydrogen gas, if more than 2% decreases the ion production and the conductivity and deterioration of the withstand voltage Since there is a problem, the content is preferably limited to 1-2%.
이하, 실시예를 통하여 본 발명을 보다 구체적으로 설명한다.Hereinafter, the present invention will be described in more detail with reference to Examples.
[실시예 1]Example 1
하기표 1과 같이 용매와 용질 및 첨가제를 조성한 후, 교반하여 전해액을 제조하였다.To prepare a solvent, solute and additives as shown in Table 1, and then stirred to prepare an electrolyte solution.
이와같이 제조된 전해액을 기종명 6.3SS 1000μF(ψ10×12), 6.3SSM 220μF(ψ6.3×7), 16SSE 4.7μF(ψ3×5)의 제품에 적용한 후 초기특성인 정전용량(μF), 손실각(Tan δ), 누설전류(μF) 값을 측정하여 그 결과를 제1도에 나타내었다.The electrolytic solution thus prepared was applied to products of model name 6.3SS 1000μF (ψ10 × 12), 6.3SSM 220μF (ψ6.3 × 7), 16SSE 4.7μF (ψ3 × 5), and the initial characteristics of capacitance (μF), loss angle (Tan δ) and leakage current (μF) were measured and the results are shown in FIG.
제1도에서 (a)는 기종명 6.3SS 1000μF(ψ10×12)의 경우, (b)는 6.3SSM 220μF(ψ6.3×7)의 경우, (c)는 16SSE 4.7μF(ψ3×5)의 경우를 나타낸다.In FIG. 1, (a) indicates a model name of 6.3SS 1000μF (ψ10 × 12), (b) shows 6.3SSM 220μF (ψ6.3 × 7), and (c) shows 16SSE 4.7μF (ψ3 × 5). The case is shown.
* EG : 에틸렌 글리콜(Ethylene Glycol), AP : 암모늄 아디페이트(Ammonium Adipate), Man : 마니톨(Mannitol), PNBA : 파라니트로벤질알콜(p-Nitro Benzyl Alcohol), APD : 암모늄 포스페이트 디베이직(Ammonium Phosphate Dibasic).* EG: Ethylene Glycol, AP: Ammonium Adipate, Man: Mannitol, PNBA: p-Nitro Benzyl Alcohol, APD: Ammonium Phosphate Dibasic Phosphate Dibasic).
제1도에서 알 수 있는 바와같이, 본 발명의 범위를 만족하는 발명예(A)의 경우에는 종래의 경우인 비교예(1)과 비교하여 초기특성인 정전용량, 누설전류에는 큰 차이가 없으나 손실각에서는 특성의 차이가 3-4% 정도로 개선되었음을 알 수 있다.As can be seen in Figure 1, in the case of Inventive Example (A), which satisfies the scope of the present invention, there is no significant difference in capacitance and leakage current, which are initial characteristics, as compared with Comparative Example (1), which is a conventional case. In the loss angle, the difference in characteristics is improved by 3-4%.
[실시예 2]Example 2
전해액의 신뢰성을 확인하기 위하여 상시 실시예 1과 같이 제조된 전해액을 16SSE 4.7μF(ψ3×5) 기종의 전해 콘덴서에 적용시켜 제품화한 후, 85℃×WV의 조건하에서 시간변화에 따른 용량변화율 및 손실각으로 내구성을 판단하여 그 결과를 제2도(a) 및 (b)에, 85℃의 조건하에서, 시간변화에 따른 용량변화율 및 손실각으로 고온저장성을 판단하여 그 결과를 제3도(a) 및 (b)에 나타내었다.In order to confirm the reliability of the electrolyte, the electrolyte prepared as in Example 1 was applied to an electrolytic capacitor of 16SSE 4.7μF (ψ3 × 5), and commercialized, and then the capacity change rate according to time variation under 85 ° C × WV and The durability is judged by the loss angle, and the result is shown in FIGS. 2 (a) and (b), under the condition of 85 ° C., and the high temperature storage property is determined by the capacity change rate and the loss angle with time. a) and (b).
제2도 및 제3도에서 알 수 있는 바와같이, 본 발명에 부합되는 발명예(A)의 경우 본 발명에 부합되지 못하는 비교예(1)에 비하여 용량변화율 및 손실각의 시간경과에 따른 변화폭이 작음을 알 수 있다.As can be seen in Figures 2 and 3, in the case of the invention example (A) according to the present invention compared to the comparative example (1) that does not meet the present invention, the change in the capacity change rate and the loss angle over time You can see this small.
따라서 본 발명의 범위에 부합되는 전해액의 경우에는 그렇지 못하는 경우에 비하여 우수한 신뢰성 특성을 나타냄을 알 수 있다.Therefore, it can be seen that the electrolyte solution that satisfies the scope of the present invention exhibits excellent reliability characteristics as compared to the case where it does not.
상술한 바와같이, 본 발명은 용매를 에틸렌글리콜과 HO의 혼합용매를 사용하고 용질로는 아디페이트만을 단독으로 사용하므로서, 초기특성인 손실각이 낮으며, 내구성 및 고온저장성과 같은 신뢰성 특성이 우수한 저압용 전해콘덴서용 전해액을 제조할 수 있는 효과가 있다.As described above, the present invention uses a mixed solvent of ethylene glycol and HO and solely adipate as a solute, and thus has a low loss angle, which is an initial characteristic, and excellent reliability characteristics such as durability and high temperature storage. There is an effect that can produce a low-pressure electrolytic capacitor electrolyte.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950025504A KR0152001B1 (en) | 1995-08-18 | 1995-08-18 | Electrolyte for a low-pressure electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019950025504A KR0152001B1 (en) | 1995-08-18 | 1995-08-18 | Electrolyte for a low-pressure electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR970012828A KR970012828A (en) | 1997-03-29 |
| KR0152001B1 true KR0152001B1 (en) | 1998-10-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019950025504A KR0152001B1 (en) | 1995-08-18 | 1995-08-18 | Electrolyte for a low-pressure electrolytic condenser |
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| Country | Link |
|---|---|
| KR (1) | KR0152001B1 (en) |
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1995
- 1995-08-18 KR KR1019950025504A patent/KR0152001B1/en not_active IP Right Cessation
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| Publication number | Publication date |
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| KR970012828A (en) | 1997-03-29 |
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