JPH0451510A - Electrolyte for driving electrolytic capacitor - Google Patents
Electrolyte for driving electrolytic capacitorInfo
- Publication number
- JPH0451510A JPH0451510A JP16046790A JP16046790A JPH0451510A JP H0451510 A JPH0451510 A JP H0451510A JP 16046790 A JP16046790 A JP 16046790A JP 16046790 A JP16046790 A JP 16046790A JP H0451510 A JPH0451510 A JP H0451510A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- electrolytic capacitor
- diglycerin
- driving
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 11
- 239000003792 electrolyte Substances 0.000 title abstract description 11
- 150000002148 esters Chemical class 0.000 claims abstract description 16
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 12
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000003960 organic solvent Substances 0.000 claims abstract description 6
- GPLRAVKSCUXZTP-UHFFFAOYSA-N diglycerol Chemical compound OCC(O)COCC(O)CO GPLRAVKSCUXZTP-UHFFFAOYSA-N 0.000 claims description 15
- 229940105990 diglycerin Drugs 0.000 claims description 14
- 239000008151 electrolyte solution Substances 0.000 claims description 12
- 239000002904 solvent Substances 0.000 abstract description 4
- -1 fatty acid carboxylic acids Chemical class 0.000 description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 6
- 229920001451 polypropylene glycol Polymers 0.000 description 5
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 239000004327 boric acid Substances 0.000 description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 4
- 235000011187 glycerol Nutrition 0.000 description 3
- 150000007524 organic acids Chemical class 0.000 description 3
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 2
- OARDBPIZDHVTCK-UHFFFAOYSA-N 2-butyloctanoic acid Chemical compound CCCCCCC(C(O)=O)CCCC OARDBPIZDHVTCK-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical class C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 229940021013 electrolyte solution Drugs 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は電解コンデンサに係わり、特に火花電圧の高い
電解コンデンサ駆動用電解液に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to electrolytic capacitors, and particularly to an electrolytic solution for driving an electrolytic capacitor with a high spark voltage.
（従来の技術）
従来、中高圧用の電解コンデンサ駆動用電解液（以下電
解液と称する）としては、エチレングリコールを主体と
した溶媒にホウ酸とアンモニア水またはホウ酸のアンモ
ニア塩等を溶解したものが使われてきたが、最近ではプ
チルオクタンニ酸、アゼライン酸、アジピン酸等の脂肪
酸カルボン酸または安息香酸、フタル酸等の芳香族カル
ボン酸ないしはその塩も使用されるようになってきてい
る。(Prior art) Conventionally, an electrolytic solution (hereinafter referred to as electrolytic solution) for driving medium-high voltage electrolytic capacitors has been prepared by dissolving boric acid and aqueous ammonia or an ammonia salt of boric acid in a solvent mainly composed of ethylene glycol. However, recently, fatty acid carboxylic acids such as butyloctanic acid, azelaic acid, and adipic acid, and aromatic carboxylic acids such as benzoic acid and phthalic acid, or their salts have also been used. .
また、低圧高信軌性用の電解液としてはＴ−ブチロラク
トンを主体とした溶媒に、マレイン酸やフタル酸等のカ
ルボン酸またはそれらのアミン塩や４級アンモニウム塩
を溶解したものが開発されてきた。Furthermore, electrolytes for low-voltage, high-fidelity applications have been developed in which carboxylic acids such as maleic acid and phthalic acid, or their amine salts and quaternary ammonium salts are dissolved in a solvent mainly composed of T-butyrolactone. Ta.
（発明が解決しようとする課題）
ホウ酸系電解液は火花発生電圧を高（することは可能で
あるが、粘度や比抵抗が高くなってしまうという欠点が
ある。また、１０５ ’Ｃといった高温で使用するとエ
ステル化が起こり多量の水が形成されるため、電極箔と
反応を起こし、弁作動等の不具合が生じるので、高温で
の使用が困難であった。(Problem to be solved by the invention) Although it is possible to raise the spark generation voltage with boric acid electrolyte, it has the drawback of increasing viscosity and specific resistance. When used at high temperatures, esterification occurs and a large amount of water is formed, which reacts with the electrode foil and causes problems such as valve operation, making it difficult to use at high temperatures.
一方、有機酸系電解液は逆に粘度や比抵抗を低くするこ
とはできるものの、火花発生電圧や耐腐食性の制約から
４５０ＷＶ以上の高圧で使用することは困難であった。On the other hand, although it is possible to lower the viscosity and specific resistance of organic acid electrolytes, it has been difficult to use them at high pressures of 450 WV or higher due to restrictions on spark generation voltage and corrosion resistance.
また、低圧のＴ−ブチロラクトン系電解液においては火
花発生電圧をあげることがむずかしく、１００ＷＶ以上
に使用することができなかった。Furthermore, it is difficult to increase the spark generation voltage with a low-pressure T-butyrolactone electrolyte, and it has not been possible to use it above 100 WV.
本発明は上述の問題点に鑑みてなされたものであり、火
花発生電圧を高め高温での信鎖性を向上させた電解コン
デンサ駆動用電解液を提供することを目的とする。The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide an electrolytic solution for driving an electrolytic capacitor that increases spark generation voltage and improves reliability at high temperatures.
（課題を解決するための手段）
上記目的による本発明では、有機溶媒と溶質とからなる
電解液に、ジグリセリンポリオキシアルキレンエステル
を添加したことを特徴とする。ジグリセリンポリオキシ
アルキレンエステルの添加量は０．５〜３０ｗｔ％が好
ましい。(Means for Solving the Problems) The present invention according to the above object is characterized in that diglycerin polyoxyalkylene ester is added to an electrolytic solution consisting of an organic solvent and a solute. The amount of diglycerin polyoxyalkylene ester added is preferably 0.5 to 30 wt%.
前記溶媒としては、エチレングリコールを主体としたも
のあるいはγ−ブチロラクトンを主体としたものが好適
である。The solvent is preferably one based on ethylene glycol or one based on γ-butyrolactone.
ここで、ジグリセリンポリオキシアルキレンエステルは
グリセリン１モルに対し任意のモル数（実用的には２〜
２００モル）のポリオキシェチ１／７ （ＰＯＥ）若し
くはポリオキシプロピレン（ｐｏｐ）またはこれらの共
重合体あるいは混合物をエステル化させたものである。Here, the diglycerin polyoxyalkylene ester can be used in any number of moles per mole of glycerin (practically 2 to
200 mol) of polyoxyethylene 1/7 (POE), polyoxypropylene (POP), or a copolymer or mixture thereof.
（作用）
ジグリセリンポリオキシアルキレンエステルはグリセリ
ンよりも分子量が大きいため、電８ｉｉ箔の酸化皮膜表
面に付着することにより、絶縁破壊を抑制するため火花
発生電圧が上昇するものと考えられる。(Function) Since diglycerin polyoxyalkylene ester has a larger molecular weight than glycerin, it is thought that by adhering to the oxide film surface of the Den-8ii foil, the spark generation voltage increases in order to suppress dielectric breakdown.
（実施例） 以下、実施例に基づいて本発明の詳細な説明する。(Example) Hereinafter, the present invention will be described in detail based on Examples.
第１表に、従来例及び本発明による実施例の電解液の特
性を示した。従来例１はホウ酸系電解液であり、火花発
生電圧は高いが比抵抗も高くなってしまう。従来例２お
よび３は有機酸系電解液であり、比抵抗は低くできるが
、火花発生電圧が低下してしまう。また、溶質量も多く
できなかった。Table 1 shows the characteristics of the electrolyte solutions of the conventional example and the example according to the present invention. Conventional Example 1 uses a boric acid electrolyte, and although the spark generation voltage is high, the specific resistance is also high. Conventional Examples 2 and 3 are organic acid-based electrolytes, and although the specific resistance can be lowered, the spark generation voltage is lowered. Moreover, the amount of solute could not be increased.
従来例４は、副溶媒としてグリセリンを使用して火花発
生電圧を上げた例である。これに対して、実施例１およ
び２はそれぞれ従来例２および３に対してジグリセリン
ポリオキシプロピレンエステルを添加した場合であり、
５０〜５５Ｖ程火花発生電圧を上昇させることができる
。実施例３は従来例４に対抗して、有機酸系でジグリセ
リンポリオキシプロピレンエステルおよびジグリセリン
ポリオキシエチレンエステルを添加して比抵抗と火花発
生電圧を同じになるよう調整した例である。Conventional Example 4 is an example in which glycerin is used as a subsolvent to increase the spark generation voltage. On the other hand, Examples 1 and 2 are cases in which diglycerin polyoxypropylene ester is added to Conventional Examples 2 and 3, respectively.
The spark generation voltage can be increased by about 50 to 55V. In contrast to Conventional Example 4, Example 3 is an example in which diglycerin polyoxypropylene ester and diglycerin polyoxyethylene ester are added as organic acids to adjust the resistivity and spark generation voltage to be the same.
第
表
第２表には、γ−ブチロラクトン系の従来例および実施
例の比較を示した。やはりジグリセリンホリオキシプロ
ピレンエステルを添加することによって火花発生電圧を
上昇させることができる。Table 2 shows a comparison between conventional examples and examples of γ-butyrolactone. The spark generation voltage can also be increased by adding diglycerol phosphoryoxypropylene ester.
第
表
なお、本実施例で用いたジグリセリンポリオキシプロピ
レンエステルはジグリセリンｌモＪしに対するプロピレ
ンオキシドが９モルのものであり粘度は６２０Ｃｐであ
った。また、ジグリセリンポリオキシエチレンエステル
はジグリセリン１モルに対するエチレンオキシドが１３
モルのものであり粘度は５１０Ｃｐであった。The diglycerin polyoxypropylene ester used in this example contained 9 moles of propylene oxide relative to diglycerin and had a viscosity of 620 Cp. In addition, diglycerin polyoxyethylene ester has 13 ethylene oxides per mole of diglycerin.
The viscosity was 510 Cp.
第
表
次に、従来例４、実施例３および４の電解液を使用して
４５０Ｖ１００μＦの電解コンデンサを作製し、１０５
°Ｃ２０００時間の負荷試験を行った結果を第３表に示
した。従来例４については全数ガス発生のため弁作動し
てしまったが、実施例３および４は良好な結果であった
。また、本実施例は溶質量も多いため、腐食も発生しな
かった。Table 1 Next, a 450V 100μF electrolytic capacitor was manufactured using the electrolytes of Conventional Example 4, Examples 3 and 4.
Table 3 shows the results of a 2000 hour load test at °C. In Conventional Example 4, the valve operated due to gas generation in all cases, but Examples 3 and 4 had good results. Furthermore, since the amount of solute was large in this example, no corrosion occurred.
ジグリセリンポリオキシアルキレンエステルの添加量と
しては、Ｑ、５ｗｔ％より少ないと火花発生電圧に対す
る効果がなく、３０ｗｔ％を超えると比抵抗が増加して
きてしまうため、０．５〜３０ｗｔ％が好ましい。The amount of diglycerin polyoxyalkylene ester added is preferably 0.5 to 30 wt%, since if it is less than Q, 5 wt%, there will be no effect on the spark generation voltage, and if it exceeds 30 wt%, the specific resistance will increase.
（発明の効果）
以上述べたように、本発明によれば火花発生電圧を上昇
させることができ、高温でも安定な電解液を提供するこ
とができる。(Effects of the Invention) As described above, according to the present invention, it is possible to increase the spark generation voltage, and it is possible to provide an electrolytic solution that is stable even at high temperatures.
Claims (4)
ポリオキシアルキレンエステルを添加したことを特徴と
する電解コンデンサ駆動用電解液。1. An electrolytic solution for driving an electrolytic capacitor, characterized in that diglycerin polyoxyalkylene ester is added to an electrolytic solution consisting of an organic solvent and a solute.
量が０．５〜３０ｗｔ％であることを特徴とする請求項
１記載の電解コンデンサ駆動用電解液。2. 2. The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the amount of diglycerin polyoxyalkylene ester added is 0.5 to 30 wt%.
ものであることを特徴とする請求項１または２記載の電
解コンデンサ駆動用電解液。3. 3. The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the organic solvent is mainly composed of ethylene glycol.
ものであることを特徴とする請求項１または２記載の電
解コンデンサ駆動用電解液。4. The electrolytic solution for driving an electrolytic capacitor according to claim 1 or 2, wherein the organic solvent is mainly composed of γ-butyrolactone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2160467A JPH0770444B2 (en) | 1990-06-19 | 1990-06-19 | Electrolytic solution for driving electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2160467A JPH0770444B2 (en) | 1990-06-19 | 1990-06-19 | Electrolytic solution for driving electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0451510A true JPH0451510A (en) | 1992-02-20 |
| JPH0770444B2 JPH0770444B2 (en) | 1995-07-31 |
Family
ID=15715580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2160467A Expired - Lifetime JPH0770444B2 (en) | 1990-06-19 | 1990-06-19 | Electrolytic solution for driving electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0770444B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06252000A (en) * | 1993-02-23 | 1994-09-09 | Rubycon Corp | Electrolytic capacitor driving electrolyte and electrolytic capacitor thereof |
| JP2017017259A (en) * | 2015-07-03 | 2017-01-19 | 阪本薬品工業株式会社 | Electrolytic solution for aluminum electrolytic capacitor and aluminum electrolytic capacitor using the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW202216855A (en) | 2020-10-29 | 2022-05-01 | 日商陶氏東麗股份有限公司 | Curable fluorosilicone composition |
| TW202229460A (en) | 2020-10-29 | 2022-08-01 | 日商陶氏東麗股份有限公司 | Curable fluorosilicone composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03142813A (en) * | 1989-10-27 | 1991-06-18 | Nippon Chemicon Corp | Electrolytic solution for electrolytic capacitor |
-
1990
- 1990-06-19 JP JP2160467A patent/JPH0770444B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03142813A (en) * | 1989-10-27 | 1991-06-18 | Nippon Chemicon Corp | Electrolytic solution for electrolytic capacitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06252000A (en) * | 1993-02-23 | 1994-09-09 | Rubycon Corp | Electrolytic capacitor driving electrolyte and electrolytic capacitor thereof |
| JP2017017259A (en) * | 2015-07-03 | 2017-01-19 | 阪本薬品工業株式会社 | Electrolytic solution for aluminum electrolytic capacitor and aluminum electrolytic capacitor using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0770444B2 (en) | 1995-07-31 |
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