JP2005333017A - Electrolytic capacitor and electrolyte therefor - Google Patents

Electrolytic capacitor and electrolyte therefor Download PDF

Info

Publication number
JP2005333017A
JP2005333017A JP2004150833A JP2004150833A JP2005333017A JP 2005333017 A JP2005333017 A JP 2005333017A JP 2004150833 A JP2004150833 A JP 2004150833A JP 2004150833 A JP2004150833 A JP 2004150833A JP 2005333017 A JP2005333017 A JP 2005333017A
Authority
JP
Japan
Prior art keywords
electrolytic
electrolytic solution
electrolytic capacitor
amine
electrolyte
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.)
Pending
Application number
JP2004150833A
Other languages
Japanese (ja)
Inventor
Teruichi Takeda
照一 武田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Carlit Co Ltd
Original Assignee
Japan Carlit Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Carlit Co Ltd filed Critical Japan Carlit Co Ltd
Priority to JP2004150833A priority Critical patent/JP2005333017A/en
Publication of JP2005333017A publication Critical patent/JP2005333017A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electrolytic solution for an electrolytic capacitor which electrolytic solution does not corrode or deform a sealing rubber of the electrolytic capacitor and has high conductivity and a high sparking voltage, and to provide the electrolytic capacitor which does not accompany troubles caused by a liquid leak or a gas generation to show performance stable in a long period. <P>SOLUTION: Boron complex salt is represented by the general formula [1], where R<SB>1</SB>and R<SB>2</SB>stand for the same or different substances of hydrogen atoms, alkyl groups containing 1-4 carbon atoms, or phenyl groups; and R<SB>3</SB>, R<SB>4</SB>, R<SB>5</SB>, R<SB>6</SB>stand for the same or different substances of hydrogen atoms, or alkyl groups containing 1-4 carbon atoms. The boron complex salt and an amine as a pH regulator are dissolved into a solvent mainly composed of water to make the electrolytic solution used to fabricate the electrolytic capacitor. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電解質としてホウ素錯体塩を含有させてなる電解コンデンサ用電解液及び電解コンデンサに関する。   The present invention relates to an electrolytic solution for electrolytic capacitors and an electrolytic capacitor containing a boron complex salt as an electrolyte.

従来、電解コンデンサ用電解液としては、テトラメチルアンモニウム、テトラエチルアンモニウム等の第4級アンモニウムと、マレイン酸、シトラコン酸、フタル酸等のジカルボン酸との塩からなる電解質を、γ−ブチロラクトン、エチレングリコール等の溶媒に溶解させたものが知られている(例えば、特許文献1及び特許文献2参照。)。   Conventionally, as an electrolytic solution for an electrolytic capacitor, an electrolyte composed of a salt of a quaternary ammonium such as tetramethylammonium or tetraethylammonium and a dicarboxylic acid such as maleic acid, citraconic acid, or phthalic acid is used as γ-butyrolactone, ethylene glycol. Those dissolved in a solvent such as the above are known (see, for example, Patent Document 1 and Patent Document 2).

上記電解液中には、常温以上で高電導度を示すものがあり、該電解液を用いた電解コンデンサは、インピーダンスが低く優れた特性を示すものの、電気化学的作用によりコンデンサ陰極部で強アルカリ成分が生成し、封口ゴムを腐食または変形させ、コンデンサから液漏れが発生する恐れがあった。   Some of the above electrolytes exhibit high conductivity at room temperature or higher, and an electrolytic capacitor using the electrolyte exhibits excellent characteristics with low impedance, but is strongly alkaline at the capacitor cathode due to electrochemical action. There was a possibility that components were generated, and the sealing rubber was corroded or deformed, causing liquid leakage from the capacitor.

そこで上記課題を解決するために、第4級イミダゾリウムと、マレイン酸、フタル酸、蟻酸等のカルボン酸とからなる塩を、電解質として用いた電解液が提案されている(例えば、特許文献3参照。)。   In order to solve the above problems, an electrolytic solution using a salt composed of quaternary imidazolium and a carboxylic acid such as maleic acid, phthalic acid or formic acid as an electrolyte has been proposed (for example, Patent Document 3). reference.).

上記イミダゾリウム塩系電解液は、コンデンサからの液漏れは発生しにくいものの、電導度は13mS/cm程度、また火花電圧は80V程度であり、近年の電解コンデンサの低インピーダンス化、高耐圧化に対しては、電導度や火花電圧の特性が不足し、改善すべき課題が残されていた。   Although the imidazolium salt electrolyte does not easily leak from the capacitor, it has an electrical conductivity of about 13 mS / cm and a spark voltage of about 80 V, which has recently led to lower impedance and higher breakdown voltage of electrolytic capacitors. On the other hand, the electrical conductivity and spark voltage characteristics were insufficient, and there were problems to be improved.

特開昭62−145713号公報Japanese Patent Laid-Open No. 62-145713 特開昭62−145715号公報Japanese Patent Laid-Open No. 62-145715 特開平8−321439号公報JP-A-8-32439

本発明の目的は、上記課題を解決し、電解コンデンサの封口ゴムを腐食または変形させることがなく、高電導度で火花電圧の高い電解コンデンサ用電解液と、液漏れやガス発生による不具合がなく、長期間安定した性能を有する電解コンデンサを提供することである。   The object of the present invention is to solve the above-mentioned problems, without corroding or deforming the sealing rubber of the electrolytic capacitor, and having high conductivity and high spark voltage, and there are no problems caused by liquid leakage or gas generation. An electrolytic capacitor having stable performance for a long period of time is provided.

本発明者は、鋭意検討を行った結果、水を主溶媒とし、電解質としてホウ素錯体塩及びpH調整剤としてアミンを含有させた電解液が上記課題を解決し得ることを見出し、本発明を完成するに至った。   As a result of intensive studies, the present inventor has found that an electrolytic solution containing water as a main solvent, a boron complex salt as an electrolyte, and an amine as a pH adjuster can solve the above problems, and the present invention has been completed. It came to do.

すなわち、本発明は、水を主溶媒とし、電解質として一般式〔1〕で表されるホウ素錯体塩及びpH調整剤であるアミンが含有されてなることを特徴とする電解コンデンサ用電解液である。   That is, the present invention is an electrolytic solution for an electrolytic capacitor characterized in that water is a main solvent and a boron complex salt represented by the general formula [1] and an amine that is a pH adjuster are contained as an electrolyte. .

Figure 2005333017
Figure 2005333017

一般式〔1〕中、R及びRは、それぞれ同一であっても異なっていてもよい水素原子、炭素数1〜4のアルキル基またはフェニル基を表し、R、R、R及びRは、それぞれ同一であっても異なっていてもよい水素原子または炭素数1〜4のアルキル基を表す。 In general formula [1], R 1 and R 2 each represent a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, or a phenyl group, which may be the same or different, and R 3 , R 4 , R 5. And R 6 each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, which may be the same or different.

また、本発明は、上記一般式〔1〕で表されるホウ素錯体塩と、アミンとが含有されてなる電解コンデンサ用電解液を用いて作製されてなることを特徴とする電解コンデンサである。   Moreover, this invention is produced using the electrolytic solution for electrolytic capacitors containing the boron complex salt represented by the said General formula [1], and an amine, The electrolytic capacitor characterized by the above-mentioned.

本発明の電解コンデンサ用電解液は、水を主溶媒とし、電解質としてホウ素錯体塩を含有してなり、封口ゴムを腐食または変形させることがなく、高電導度で火花電圧が高く、また、pH調整剤となるアミンを含有させることにより、電解液が酸性を呈することなく中性領域に保持され、アルミニウム電解コンデンサ用電解液に適用した場合でも、アルミニウム電極箔の水和劣化を抑制することが可能となり、高い化学的安定性を示す。   The electrolytic solution for an electrolytic capacitor of the present invention contains water as a main solvent and a boron complex salt as an electrolyte, does not corrode or deform the sealing rubber, has high conductivity, high spark voltage, and pH. By containing an amine as a regulator, the electrolyte is kept in a neutral region without exhibiting acidity, and even when applied to an electrolytic solution for an aluminum electrolytic capacitor, the hydration deterioration of the aluminum electrode foil can be suppressed. It becomes possible and shows high chemical stability.

また、上記電解液を用いて作製した本発明の電解コンデンサは、インピーダンスが低く、広い温度範囲で優れた特性を示し、液漏れやガス発生による不具合がなく、長期間安定した性能を有する。   The electrolytic capacitor of the present invention produced using the above electrolytic solution has low impedance, exhibits excellent characteristics in a wide temperature range, has no problems due to liquid leakage and gas generation, and has stable performance for a long period of time.

以下、本発明の電解コンデンサ用電解液及び該電解液を用いた電解コンデンサについて、詳細に説明する。   Hereinafter, the electrolytic solution for electrolytic capacitors of the present invention and the electrolytic capacitor using the electrolytic solution will be described in detail.

本発明の電解コンデンサ用電解液は、水を主溶媒とし、電解質として一般式〔1〕で表されるホウ素錯体塩と、pH調整剤であるアミンとが含有されてなるものである。   The electrolytic solution for an electrolytic capacitor of the present invention contains water as a main solvent, and contains, as an electrolyte, a boron complex salt represented by the general formula [1] and an amine that is a pH adjuster.

本発明の電解液に用いられる溶媒は、水を主溶媒とするものであり、電解液中、水の含有量としては、30〜80質量%であり、水の含有量が30質量%未満では電導度が低下し、不都合である。   The solvent used in the electrolytic solution of the present invention is water as a main solvent, and the content of water in the electrolytic solution is 30 to 80% by mass, and the water content is less than 30% by mass. Conductivity is lowered, which is inconvenient.

前記一般式〔1〕において、R及びRは、水素原子、炭素数1〜4のアルキル基またはフェニル基を、R、R、R及びRは、水素原子または炭素数1〜4のアルキル基を表し、それぞれが同一であっても異なっていてもよい。 In the general formula [1], R 1 and R 2 are a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a phenyl group, and R 3 , R 4 , R 5 and R 6 are a hydrogen atom or 1 carbon atom. Represents an alkyl group of ˜4, and each may be the same or different.

本発明に用いられるホウ素錯体塩としては、電解液の電導度及び火花電圧を考慮すると、好ましくは、ボロジグリコール酸アンモニウム塩及び/またはボロジ乳酸アンモニウム塩が選ばれる。   As the boron complex salt used in the present invention, borodiglycolic acid ammonium salt and / or ammonium borodilactic acid salt is preferably selected in consideration of the electric conductivity and spark voltage of the electrolytic solution.

上記ホウ素錯体塩は、水溶媒中、ホウ酸1molあたり、2molのオキシカルボン酸、1molのアンモニアまたはアミンを温度50〜60℃で反応させた後、減圧脱水させて得られる。   The boron complex salt is obtained by reacting 2 mol of oxycarboxylic acid, 1 mol of ammonia or amine per mol of boric acid in an aqueous solvent at a temperature of 50 to 60 ° C. and then dehydrating under reduced pressure.

本発明の電解液中の電解質濃度としては、5〜50質量%の範囲が好ましく、5質量%未満の場合、濃度が低すぎて十分な電導度が得られず、また50質量%超の場合、濃度が濃くなりすぎ、電導度が低下してしまい、不都合である。   The electrolyte concentration in the electrolytic solution of the present invention is preferably in the range of 5 to 50% by mass, and when it is less than 5% by mass, the concentration is too low to obtain sufficient conductivity, and when the concentration exceeds 50% by mass. , The concentration becomes too high, and the conductivity decreases, which is inconvenient.

本発明の電解コンデンサ用電解液は、該電解液のpHを中性領域に保持するためのpH調整剤として、アミンが添加される。   In the electrolytic solution for electrolytic capacitors of the present invention, an amine is added as a pH adjuster for maintaining the pH of the electrolytic solution in a neutral region.

上記アミンとしては、電解液の耐熱性及びアルミニウムへの腐食性を考慮すると、炭素数が少なくとも8の第2級及び/または第3級脂肪族アミンが好ましく、さらに毒性及び経済性を考慮すると、トリn−ブチルアミンがより好ましい。   The amine is preferably a secondary and / or tertiary aliphatic amine having at least 8 carbon atoms in consideration of the heat resistance of the electrolytic solution and the corrosiveness to aluminum, and further considering toxicity and economy, Tri n-butylamine is more preferred.

また、電解液中の上記アミンは、好ましくは0.5〜5質量%の範囲である。該アミンが0.5質量%未満の場合、pH調整効果が不十分なため、電解液は酸性を呈し不都合であり、また、5質量%超の場合、電解液の電導度が低下し不都合である。   The amine in the electrolytic solution is preferably in the range of 0.5 to 5% by mass. When the amine content is less than 0.5% by mass, the pH adjustment effect is insufficient, so that the electrolyte solution is acidic and disadvantageous. When the amine content exceeds 5% by mass, the conductivity of the electrolyte solution is lowered and disadvantageous. is there.

本発明の電解液に用いられる副溶媒としては、主溶媒である水に可溶な電解コンデンサ用電解液に用いられる周知のものを使用することができ、電解液の電導度、耐熱性、毒性等を考慮すると、エチレングリコールが好ましい。   As the secondary solvent used in the electrolytic solution of the present invention, well-known solvents used in electrolytic capacitors for electrolytic capacitors that are soluble in water, which is the main solvent, can be used. The conductivity, heat resistance, and toxicity of the electrolytic solution can be used. In view of the above, ethylene glycol is preferable.

本発明の電解コンデンサ用電解液は、電解コンデンサの特性向上のため必要に応じて、リン酸誘導体、ニトロ化合物等の添加剤を用いることができる。   In the electrolytic solution for electrolytic capacitors of the present invention, additives such as phosphoric acid derivatives and nitro compounds can be used as necessary for improving the characteristics of the electrolytic capacitors.

本発明の電解コンデンサは、上記電解液を用いて作製されてなり、以下、本発明の電解コンデンサについて説明する。   The electrolytic capacitor of the present invention is produced using the above electrolytic solution, and the electrolytic capacitor of the present invention will be described below.

まず、アルミニウム箔の表面に誘電体酸化皮膜を形成させた陽極箔及びアルミニウム陰
極箔に、それぞれ陽極リード及び陰極リードを接合し、続いて、該箔をセパレータを介し
て巻回させた後、本発明の電解液を含浸させてコンデンサ素子を得る。
First, an anode lead and a cathode lead are respectively joined to an anode foil and an aluminum cathode foil having a dielectric oxide film formed on the surface of the aluminum foil, and then the foil is wound through a separator, followed by A capacitor element is obtained by impregnating the electrolytic solution of the invention.

ついで、該素子を金属製の円筒型容器内に載置し、封口ゴムに陽陰極リードを貫通させて、開口部を密封し、本発明の電解コンデンサを得る。   Next, the element is placed in a metal cylindrical container, the positive electrode lead is passed through the sealing rubber, the opening is sealed, and the electrolytic capacitor of the present invention is obtained.

以下、本発明を実施するための形態を、実施例及び比較例に基づき説明する。実施例中の「%」は「質量%」を表す。なお、本発明は、実施例によりなんら限定されない。   Hereinafter, modes for carrying out the present invention will be described based on examples and comparative examples. “%” In the examples represents “% by mass”. In addition, this invention is not limited at all by the Example.

実施例1
主溶媒として水60%、副溶媒としてエチレングリコール10%、電解質としてボロジグリコール酸アンモニウム塩28.5%、またpH調整剤としてトリn−ブチルアミン1.5%の濃度となるように、電解コンデンサ用電解液を調製した。得られた電解液の温度30℃における電導度は67.1mS/cm、火花電圧は120Vであり、pHは7.1であった。結果を表1に示す。
Example 1
Electrolytic capacitor so that the concentration is 60% water as the main solvent, 10% ethylene glycol as the auxiliary solvent, 28.5% ammonium borodiglycolate as the electrolyte, and 1.5% tri-n-butylamine as the pH adjuster. An electrolyte solution was prepared. The conductivity of the obtained electrolyte at 30 ° C. was 67.1 mS / cm, the spark voltage was 120 V, and the pH was 7.1. The results are shown in Table 1.

実施例2
実施例1において、電解質としてボロジ乳酸アンモニウム塩28.5%を用いた以外は、実施例1と同様にして、電解コンデンサ用電解液を調製した。得られた電解液の温度30℃における電導度は50.0mS/cm、火花電圧は155Vであり、pHは6.8であった。結果を表1に示す。
Example 2
In Example 1, an electrolytic solution for an electrolytic capacitor was prepared in the same manner as in Example 1 except that 28.5% of borodilactic acid ammonium salt was used as the electrolyte. The conductivity of the obtained electrolyte at a temperature of 30 ° C. was 50.0 mS / cm, the spark voltage was 155 V, and the pH was 6.8. The results are shown in Table 1.

実施例3
実施例1において、電解質としてボロジグリコール酸トリメチルアミン塩28.5%を用いた以外は、実施例1と同様にして、電解コンデンサ用電解液を調製した。得られた電解液の温度30℃における電導度は37.0mS/cm、火花電圧は120Vであり、pHは7.2であった。結果を表1に示す。
Example 3
In Example 1, an electrolytic solution for an electrolytic capacitor was prepared in the same manner as in Example 1 except that 28.5% of borodiglycolic acid trimethylamine salt was used as the electrolyte. The conductivity of the obtained electrolytic solution at 30 ° C. was 37.0 mS / cm, the spark voltage was 120 V, and the pH was 7.2. The results are shown in Table 1.

実施例4
実施例1において、電解質としてボロジマンデル酸アンモニウム塩28.5%を用いた以外は、実施例1と同様にして、電解コンデンサ用電解液を調製した。得られた電解液の温度30℃における電導度は32.2mS/cm、火花電圧は165Vであり、pHは6.9であった。結果を表1に示す。
Example 4
In Example 1, an electrolytic solution for an electrolytic capacitor was prepared in the same manner as in Example 1 except that 28.5% ammonium borodimandelate was used as the electrolyte. The conductivity of the obtained electrolyte at 30 ° C. was 32.2 mS / cm, the spark voltage was 165 V, and the pH was 6.9. The results are shown in Table 1.

比較例1
溶媒としてγ−ブチロラクトン70%、電解質としてフタル酸水素テトラメチルアンモニウム塩30%の濃度となるように、電解コンデンサ用電解液を調製した。得られた電解液の温度30℃における電導度は10.8mS/cm、火花電圧は90Vであった。結果を表1に示す。
Comparative Example 1
An electrolytic solution for an electrolytic capacitor was prepared so as to have a concentration of 70% γ-butyrolactone as a solvent and 30% tetramethylammonium hydrogen phthalate as an electrolyte. The conductivity of the obtained electrolyte at 30 ° C. was 10.8 mS / cm, and the spark voltage was 90V. The results are shown in Table 1.

比較例2
溶媒としてγ−ブチロラクトン75%、電解質としてフタル酸水素テトラメチルイミダゾリウム塩25%の濃度となるように、電解コンデンサ用電解液を調製した。得られた電解液の温度30℃における電導度は12.9mS/cm、火花電圧は80Vであった。結果を表1に示す。
Comparative Example 2
An electrolytic solution for an electrolytic capacitor was prepared so as to have a concentration of 75% γ-butyrolactone as a solvent and 25% tetramethylimidazolium hydrogen phthalate as an electrolyte. The conductivity of the obtained electrolyte at a temperature of 30 ° C. was 12.9 mS / cm, and the spark voltage was 80V. The results are shown in Table 1.

比較例3
主溶媒として水60%、副溶媒としてエチレングリコール10%、電解質としてボロジグリコール酸アンモニウム塩30%の濃度となるように、電解コンデンサ用電解液を調製した。得られた電解液の温度30℃における電導度は67.8mS/cm、火花電圧は120Vであり、pHは3.8であった。結果を表1に示す。
Comparative Example 3
An electrolytic solution for an electrolytic capacitor was prepared so as to have a concentration of 60% water as a main solvent, 10% ethylene glycol as a secondary solvent, and 30% ammonium borodiglycolate as an electrolyte. The conductivity of the obtained electrolyte at a temperature of 30 ° C. was 67.8 mS / cm, the spark voltage was 120 V, and the pH was 3.8. The results are shown in Table 1.

Figure 2005333017
Figure 2005333017

本発明の実施例1〜4、比較例1及び3の電解液を使用してアルミニウム電解コンデンサ(定格電圧10V、静電容量1000μF、サイズ;φ10mm×L20mm)を作製した。なお、コンデンサの封口ゴムには、加硫ブチルゴムを使用した。   Aluminum electrolytic capacitors (rated voltage: 10 V, capacitance: 1000 μF, size: φ10 mm × L20 mm) were prepared using the electrolytic solutions of Examples 1 to 4 and Comparative Examples 1 and 3 of the present invention. Note that vulcanized butyl rubber was used as the sealing rubber of the capacitor.

得られたアルミニウム電解コンデンサに定格電圧を印加して、温度105℃の恒温槽中に保持し、1000時間経過後のコンデンサ特性、液漏れ及びガス発生の有無について調べた。結果を表2に示す。   A rated voltage was applied to the obtained aluminum electrolytic capacitor, which was held in a thermostatic bath at a temperature of 105 ° C., and the capacitor characteristics, liquid leakage, and presence / absence of gas generation after 1000 hours were examined. The results are shown in Table 2.

Figure 2005333017
Figure 2005333017

表1に示すように、比較例1及び比較例2の電解液は、電導度、火花電圧が低く、また比較例3の電解液は、pHが酸性であるのに対し、本発明の実施例1〜4の電解液は、電導度、火花電圧が高く、pHも中性領域に保持されていることがわかる。   As shown in Table 1, the electrolytes of Comparative Examples 1 and 2 have low conductivity and low spark voltage, and the electrolyte of Comparative Example 3 has an acidic pH, whereas the examples of the present invention. It can be seen that the electrolytes 1 to 4 have high conductivity and spark voltage, and the pH is also maintained in the neutral region.

また、表2に示すように、電解質として第4級アンモニウム塩であるフタル酸水素テトラメチルアンモニウムを用いた比較例1のコンデンサは、1000時間経過後に、試験に供した全てのコンデンサから液漏れが発生、さらに、pH調整剤としてアミンを添加しない比較例3のコンデンサは、ガス発生により安全弁が作動したのに対し、本発明の実施例1〜4の電解液を用いたコンデンサは、低インピーダンスで、優れたコンデンサ特性を示し、1000時間経過後においても、液漏れやガス発生が無く、安定した特性を示した。
Further, as shown in Table 2, the capacitor of Comparative Example 1 using quaternary ammonium salt tetramethylammonium phthalate as the electrolyte leaked from all the capacitors subjected to the test after 1000 hours. In addition, the capacitor of Comparative Example 3 in which no amine was added as a pH adjuster operated the safety valve due to gas generation, whereas the capacitors using the electrolytic solutions of Examples 1 to 4 of the present invention had low impedance. Excellent capacitor characteristics were exhibited, and even after 1000 hours, there was no liquid leakage or gas generation, and stable characteristics were exhibited.

Claims (8)

水を主溶媒とし、電解質として一般式〔1〕で表されるホウ素錯体塩及びpH調整剤としてアミンが含有されてなることを特徴とする電解コンデンサ用電解液。
Figure 2005333017
(式中、R及びRは、それぞれ同一であっても異なっていてもよい水素原子、炭素数1〜4のアルキル基またはフェニル基を表し、R、R、R及びRは、それぞれ同一であっても異なっていてもよい水素原子または炭素数1〜4のアルキル基を表す。)
An electrolytic solution for an electrolytic capacitor comprising water as a main solvent, a boron complex salt represented by the general formula [1] as an electrolyte, and an amine as a pH adjuster.
Figure 2005333017
(Wherein, R 1 and R 2 each may hydrogen atoms be the same or different and represent an alkyl group or a phenyl group having 1 to 4 carbon atoms, R 3, R 4, R 5 and R 6 Represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, which may be the same or different.
ホウ素錯体塩が、ボロジグリコール酸アンモニウム塩及び/またはボロジ乳酸アンモニウム塩であることを特徴とする請求項1に記載の電解コンデンサ用電解液。 2. The electrolytic solution for an electrolytic capacitor according to claim 1, wherein the boron complex salt is a borodiglycolic acid ammonium salt and / or a borodilactic acid ammonium salt. ホウ素錯体塩が、5〜50質量%含有されてなることを特徴とする請求項1または請求項2のいずれかに記載の電解コンデンサ用電解液。 The electrolytic solution for electrolytic capacitors according to claim 1, wherein the boron complex salt is contained in an amount of 5 to 50% by mass. アミンが、第2級及び/または第3級脂肪族アミンであり、かつ該アミンの炭素数が少なくとも8であることを特徴とする請求項1から請求項3のいずれか一項に記載の電解コンデンサ用電解液。 The electrolysis according to any one of claims 1 to 3, wherein the amine is a secondary and / or tertiary aliphatic amine, and the amine has at least 8 carbon atoms. Electrolytic solution for capacitors. アミンが、トリn−ブチルアミンであることを特徴とする請求項1から請求項4のいずれか一項に記載の電解コンデンサ用電解液。 The electrolytic solution for an electrolytic capacitor according to any one of claims 1 to 4, wherein the amine is tri-n-butylamine. 請求項1から請求項5のいずれか一項に記載の電解コンデンサ用電解液において、アミンが0.5〜5質量%含有されてなることを特徴とする電解コンデンサ用電解液。 The electrolytic solution for electrolytic capacitors according to any one of claims 1 to 5, wherein 0.5 to 5% by mass of an amine is contained. 副溶媒としてエチレングリコールを含有させてなることを特徴とする請求項1から請求項6のいずれか一項に記載の電解コンデンサ用電解液。 The electrolytic solution for an electrolytic capacitor according to any one of claims 1 to 6, wherein ethylene glycol is contained as a secondary solvent. 請求項1から請求項7のいずれか一項に記載の電解コンデンサ用電解液を用いて作製されてなることを特徴とする電解コンデンサ。
An electrolytic capacitor produced using the electrolytic solution for an electrolytic capacitor according to any one of claims 1 to 7.
JP2004150833A 2004-05-20 2004-05-20 Electrolytic capacitor and electrolyte therefor Pending JP2005333017A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004150833A JP2005333017A (en) 2004-05-20 2004-05-20 Electrolytic capacitor and electrolyte therefor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004150833A JP2005333017A (en) 2004-05-20 2004-05-20 Electrolytic capacitor and electrolyte therefor

Publications (1)

Publication Number Publication Date
JP2005333017A true JP2005333017A (en) 2005-12-02

Family

ID=35487446

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004150833A Pending JP2005333017A (en) 2004-05-20 2004-05-20 Electrolytic capacitor and electrolyte therefor

Country Status (1)

Country Link
JP (1) JP2005333017A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008235895A (en) * 2007-03-20 2008-10-02 Avx Corp Neutral electrolyte for wet electrolytic capacitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008235895A (en) * 2007-03-20 2008-10-02 Avx Corp Neutral electrolyte for wet electrolytic capacitor

Similar Documents

Publication Publication Date Title
JP4304242B2 (en) Electrolytic solution for electrolytic capacitor and electrolytic capacitor
TWI271760B (en) Electrolytic condenser drive electrolyte and electrolytic condenser using the same
JP2005333017A (en) Electrolytic capacitor and electrolyte therefor
JP2001102265A (en) Aluminum electrolytic capacitor
JP4571014B2 (en) Electrolytic solution for driving aluminum electrolytic capacitors
JP2000156329A (en) Electrolyte and electrochemical element using the same
JP4570804B2 (en) Electrolytic capacitor drive electrolyte
JP4588130B2 (en) Electrolytic solution for electrolytic capacitors
JP4016218B2 (en) Electrolytic solution for electrolytic capacitors
JP2005327945A (en) Electrolytic solution for aluminum electrolytic capacitor and aluminum electrolytic capacitor using same
JP4555163B2 (en) Electrolytic solution for driving electrolytic capacitors
JP4405906B2 (en) Electrolytic solution for driving aluminum electrolytic capacitors
JP2005222975A (en) Electrolyte for aluminium electrolytic capacitor, and aluminium electrolytic capacitor employing the same
JPH02158117A (en) Electrolyte for electrolytic capacitor
JP2774525B2 (en) Electrolyte for electrolytic capacitors
JP2005222974A (en) Electrolyte for aluminium electrolytic capacitor, and aluminium electrolytic capacitor employing the same
JP4030416B2 (en) Electrolytic solution for driving electrolytic capacitors
JP4804063B2 (en) Electrolytic solution for electrolytic capacitors
JP4576317B2 (en) Electrolytic solution for driving electrolytic capacitors
JPH0254919A (en) Electrolytic solution for electrolytic capacitor
JP4570790B2 (en) Electrolytic solution for driving electrolytic capacitors
JP2004186188A (en) Electrolyte for driving electrolytic capacitor
JPH097898A (en) Electrolyte for electric double-layer capacitor
JP2002164260A (en) Electrolytic solution for driving electrolytic capacitor
JP2002217065A (en) Electrolyte for driving electrolytic capacitor