JP4668766B2 - Electrolytic solution for electrolytic capacitor drive - Google Patents
Electrolytic solution for electrolytic capacitor drive Download PDFInfo
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- JP4668766B2 JP4668766B2 JP2005316316A JP2005316316A JP4668766B2 JP 4668766 B2 JP4668766 B2 JP 4668766B2 JP 2005316316 A JP2005316316 A JP 2005316316A JP 2005316316 A JP2005316316 A JP 2005316316A JP 4668766 B2 JP4668766 B2 JP 4668766B2
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- electrolytic solution
- oxycitronellal
- electrolytic
- withstand voltage
- salt
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- 239000008151 electrolyte solution Substances 0.000 title claims description 25
- 239000003990 capacitor Substances 0.000 title claims description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 12
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 7
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 6
- 239000004327 boric acid Substances 0.000 claims description 6
- 239000002904 solvent Substances 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 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 description 5
- 229930195725 Mannitol Natural products 0.000 description 5
- 239000000594 mannitol Substances 0.000 description 5
- 235000010355 mannitol Nutrition 0.000 description 5
- -1 oxy citronellal Chemical compound 0.000 description 4
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 description 3
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 description 3
- 239000000600 sorbitol Substances 0.000 description 3
- 150000005846 sugar alcohols Polymers 0.000 description 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- QUSNBJAOOMFDIB-UHFFFAOYSA-N Ethylamine Chemical compound CCN QUSNBJAOOMFDIB-UHFFFAOYSA-N 0.000 description 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-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
- 239000003792 electrolyte Substances 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical compound OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 description 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 2
- BQNDPALRJDCXOY-UHFFFAOYSA-N 2,3-dibutylbutanedioic acid Chemical compound CCCCC(C(O)=O)C(C(O)=O)CCCC BQNDPALRJDCXOY-UHFFFAOYSA-N 0.000 description 1
- OWCLRJQYKBAMOL-UHFFFAOYSA-N 2-butyloctanedioic acid Chemical compound CCCCC(C(O)=O)CCCCCC(O)=O OWCLRJQYKBAMOL-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000005711 Benzoic acid Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 description 1
- 229940067597 azelate Drugs 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- NEHNMFOYXAPHSD-UHFFFAOYSA-N beta-citronellal Natural products O=CCC(C)CCC=C(C)C NEHNMFOYXAPHSD-UHFFFAOYSA-N 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001734 carboxylic acid salts Chemical class 0.000 description 1
- 229930003633 citronellal Natural products 0.000 description 1
- 235000000983 citronellal Nutrition 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- SPZBYSKKSSLUKN-UHFFFAOYSA-N diazanium;2-butyloctanedioate Chemical group [NH4+].[NH4+].CCCCC(C([O-])=O)CCCCCC([O-])=O SPZBYSKKSSLUKN-UHFFFAOYSA-N 0.000 description 1
- HPNMFZURTQLUMO-UHFFFAOYSA-N diethylamine Chemical compound CCNCC HPNMFZURTQLUMO-UHFFFAOYSA-N 0.000 description 1
- LIWAQLJGPBVORC-UHFFFAOYSA-N ethylmethylamine Chemical compound CCNC LIWAQLJGPBVORC-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- DAZXVJBJRMWXJP-UHFFFAOYSA-N n,n-dimethylethylamine Chemical compound CCN(C)C DAZXVJBJRMWXJP-UHFFFAOYSA-N 0.000 description 1
- GNVRJGIVDSQCOP-UHFFFAOYSA-N n-ethyl-n-methylethanamine Chemical compound CCN(C)CC GNVRJGIVDSQCOP-UHFFFAOYSA-N 0.000 description 1
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 1
- YBRBMKDOPFTVDT-UHFFFAOYSA-N tert-butylamine Chemical compound CC(C)(C)N YBRBMKDOPFTVDT-UHFFFAOYSA-N 0.000 description 1
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical compound C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 description 1
- SEACXNRNJAXIBM-UHFFFAOYSA-N triethyl(methyl)azanium Chemical compound CC[N+](C)(CC)CC SEACXNRNJAXIBM-UHFFFAOYSA-N 0.000 description 1
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- Electric Double-Layer Capacitors Or The Like (AREA)
Description
本発明は、電解コンデンサの駆動用電解液（以下、電解液と称す）に関するものであり、特に耐電圧を改善した電解液に関するものである。 The present invention relates to an electrolytic solution for driving an electrolytic capacitor (hereinafter referred to as an electrolytic solution), and particularly to an electrolytic solution with improved withstand voltage.
従来、中高圧用アルミニウム電解コンデンサの電解液には、例えば、エチレングリコールを主溶媒とし、有機カルボン酸またはそのアンモニウム塩と、ホウ酸またはそのアンモニウム塩とを配合し、電解液の耐電圧を上昇させるためマンニトール、ソルビトール等の多価アルコールを添加した電解液が用いられている（例えば、特許文献１，２参照）。
しかしながら、マンニトール、ソルビトール等の多価アルコールは、添加量に対する耐電圧の上昇が緩慢である。また、マンニトール、ソルビトール等の多価アルコールは、有機カルボン酸やホウ酸とのエステル化反応により耐電圧を上昇させる効果があるが、比抵抗が著しく上昇するという問題点がある。 However, polyhydric alcohols such as mannitol and sorbitol have a slow increase in withstand voltage with respect to the added amount. In addition, polyhydric alcohols such as mannitol and sorbitol have an effect of increasing the withstand voltage by an esterification reaction with an organic carboxylic acid or boric acid, but have a problem that the specific resistance is remarkably increased.
以上の問題点に鑑みて、本発明の課題は、比抵抗が低くて耐電圧が高い電解コンデンサの駆動用電解液を提供することにある。 In view of the above problems, an object of the present invention is to provide an electrolytic solution for driving an electrolytic capacitor having a low specific resistance and a high withstand voltage.
本発明は、上記課題を解決するために種々検討した結果、達成したものであり、オキシシトロネラールの特性を電解液に利用しようとするものである。
すなわち、本発明に係る電解コンデンサの駆動用電解液では、エチレングリコールを主溶媒とし、少なくとも、有機カルボン酸またはその塩と、ホウ酸またはその塩と、以下の化学式で示されるオキシシトロネラールとを配合し、オキシシトロネラールの配合量が、電解液全体に対して０．５〜２．０ｗｔ％であることを特徴とする。
The present invention has been accomplished as a result of various studies to solve the above-described problems, and intends to utilize the characteristics of oxycitronellal as an electrolytic solution.
That is, in the electrolytic solution for driving an electrolytic capacitor according to the present invention, ethylene glycol is the main solvent, and at least an organic carboxylic acid or a salt thereof, boric acid or a salt thereof, and oxycitronellal represented by the following chemical formula: And the amount of oxycitronellal is 0.5 to 2.0 wt% with respect to the entire electrolyte .
本発明において、オキシシトロネラールの配合量は、電解液全体に対して０．５〜２．０ｗｔ％である。オキシシトロネラールの配合量が０．５ｗｔ％未満では、耐電圧の上昇効果が十分でなく、配合量が２．０ｗｔ％を超えると比抵抗が高くなる。従って、オキシシトロネラールの配合量は、電解液全体に対して０．５〜２．０ｗｔ％の範囲が好ましい。 In the present invention, the amount of oxy citronellal, Ru 0.5～2.0Wt% der on the entire electrolyte. When the blending amount of oxycitronellal is less than 0.5 wt%, the effect of increasing the withstand voltage is not sufficient, and when the blending amount exceeds 2.0 wt%, the specific resistance increases. Therefore, the blending amount of oxycitronellal is preferably in the range of 0.5 to 2.0 wt% with respect to the entire electrolyte solution.
本発明に係る電解液に配合したオキシシトロネラールは、少量の添加で耐電圧を向上させることができるので、比抵抗が低くて耐電圧が高い電解液を実現できる。 Since the oxycitronellal blended in the electrolytic solution according to the present invention can improve the withstand voltage with a small amount of addition, an electrolytic solution having a low specific resistance and a high withstand voltage can be realized.
本発明に係る電解液は、エチレングリコールを主溶媒とし、有機カルボン酸またはその塩と、ホウ酸またはその塩と、上記の化学式で示されるオキシシトロネラールとを配合したことを特徴とする。ここで、オキシシトロネラールの配合量は、電解液全体に対して０．５〜２．０ｗｔ％であることが好ましい。 The electrolytic solution according to the present invention is characterized by blending an organic carboxylic acid or a salt thereof, boric acid or a salt thereof, and oxycitronellal represented by the above chemical formula, using ethylene glycol as a main solvent. Here, it is preferable that the compounding quantity of oxycitronellal is 0.5-2.0 wt% with respect to the whole electrolyte solution.
本発明において、有機カルボン酸としては、アゼライン酸、セバシン酸、安息香酸、１，６−デカンジカルボン酸、５，６−デカンジカルボン酸、７−ビニルヘキサデン−１，１６−ジカルボン酸等を例示することができる。 In the present invention, examples of the organic carboxylic acid include azelaic acid, sebacic acid, benzoic acid, 1,6-decanedicarboxylic acid, 5,6-decanedicarboxylic acid, 7-vinylhexaden-1,16-dicarboxylic acid and the like. can do.
また、有機カルボン酸の塩としては、アンモニウム塩の他、メチルアミン、エチルアミン、ｔ−ブチルアミン等の一級アミン塩、ジメチルアミン、エチルメチルアミン、ジエチルアミン等の二級アミン塩、トリメチルアミン、ジエチルメチルアミン、エチルジメチルアミン、トリエチルアミン等の三級アミン塩、テトラメチルアンモニウム、トリエチルメチルアンモニウム、テトラエチルアンモニウム等の四級アンモニウム塩等を例示することができる。 In addition to ammonium salts, organic carboxylic acid salts include primary amine salts such as methylamine, ethylamine and t-butylamine, secondary amine salts such as dimethylamine, ethylmethylamine and diethylamine, trimethylamine, diethylmethylamine, Examples thereof include tertiary amine salts such as ethyldimethylamine and triethylamine, and quaternary ammonium salts such as tetramethylammonium, triethylmethylammonium and tetraethylammonium.
本発明を適用した電解液に配合したオキシシトロネラールの少量の添加で耐電圧を向上させることができるので、本発明を適用した電解液は、比抵抗が低く、かつ、耐電圧が高い。その理由は、オキシシトロネラールは、電極箔に対する高い吸着性を有するため、電極箔上にて有機カルボン酸、ホウ酸とのエステル化反応が起こるので、少量の添加で耐電圧を向上させることができるからと考えられる。 Since the withstand voltage can be improved by adding a small amount of oxycitronellal blended in the electrolytic solution to which the present invention is applied, the electrolytic solution to which the present invention is applied has a low specific resistance and a high withstand voltage. The reason for this is that oxycitronellal has high adsorptivity to electrode foil, so that esterification reaction with organic carboxylic acid and boric acid occurs on electrode foil, so that withstand voltage can be improved with a small amount of addition. This is thought to be possible.
以下、実施例に基づいて本発明をより具体的に説明する。表１に示す組成で電解液を調合し、３０℃における比抵抗および８５℃における火花発生電圧（電解液の耐電圧）を測定した。 Hereinafter, based on an Example, this invention is demonstrated more concretely. An electrolyte solution was prepared with the composition shown in Table 1, and the specific resistance at 30 ° C. and the spark generation voltage at 85 ° C. (withstand voltage of the electrolyte solution) were measured.
まず、有機カルボン酸塩を１，６−デカンジカルボン酸アンモニウムとした場合の実施例２〜６および比較例１、７について説明する。 First, Examples 2 to 6 and Comparative Examples 1 and 7 when the organic carboxylate is ammonium 1,6-decanedicarboxylate will be described.
表１において、マンニトール、オキシシトロネラールの配合量が同等のもの、すなわち、配合量が１．０ｗｔ％の実施例３と従来例２とを比較し、配合量が２．０ｗｔ％の実施例６と従来例３とを比較すると分かるように、オキシシトロネラールを配合した実施例３、６の方が比抵抗が低く、火花発生電圧（耐電圧）が高い。 In Table 1, the blending amounts of mannitol and oxycitronellal are equivalent, that is, Example 3 having a blending amount of 1.0 wt% is compared with Conventional Example 2, and the blending amount is 2.0 wt%. As can be seen from a comparison between No. 6 and Conventional Example 3, Examples 3 and 6 containing oxycitronellal have a lower specific resistance and a higher spark generation voltage (withstand voltage).
但し、オキシシトロネラールの配合量が０．５ｗｔ％未満では、耐電圧の上昇効果は十分でなく（比較例１）、また、配合量が２．０ｗｔ％を超えると比抵抗が高くなるので（比較例７）、低比抵抗用途に不向きとなる。よって、オキシシトロネラールの配合量は、電解液全体に対して０．５〜２．０ｗｔ％の範囲が好ましい。 However, if the blending amount of oxycitronellal is less than 0.5 wt%, the effect of increasing the withstand voltage is not sufficient ( Comparative Example 1), and if the blending amount exceeds 2.0 wt%, the specific resistance increases. ( Comparative Example 7), unsuitable for low specific resistance applications. Therefore, the blending amount of oxycitronellal is preferably in the range of 0.5 to 2.0 wt% with respect to the entire electrolyte solution.
また、有機カルボン酸としてアゼライン酸アンモニウムを用いた場合（実施例８〜１１）、およびセバシン酸アンモニウムを用いた場合（実施例１２〜１４）も、上記実施例と同様、オキシシトロネラールによる火花発生電圧（耐電圧）の上昇効果が見られた。 In addition, in the case of using ammonium azelate as the organic carboxylic acid (Examples 8 to 11) and in the case of using ammonium sebacate (Examples 12 to 14), sparks by oxycitronellal as in the above examples. The effect of increasing the generated voltage (withstand voltage) was observed.
また、上記実施例に係る電解液を用いた電解コンデンサについて信頼性試験を行ったところ、マンニトールを配合した電解液を用いた場合に対して同等以上の特性が得られた。 Moreover, when a reliability test was performed on the electrolytic capacitor using the electrolytic solution according to the above example, characteristics equal to or higher than those obtained when the electrolytic solution containing mannitol was used were obtained.
なお、オキシシトロネラールを配合した効果は、上記実施例に限定されるものではなく、先に記載した有機カルボン酸やその塩を単独あるいは複数配合した電解液に用いても同等の効果があった。
Note that the effect obtained by blending oxycitronellal is not limited to the above-mentioned examples, and the same effect can be obtained by using the above-described organic carboxylic acid or a salt thereof alone or in an electrolytic solution containing a plurality thereof. It was.
Claims (1)
前記オキシシトロネラールの配合量が、電解液全体に対して０．５〜２．０ｗｔ％であることを特徴とする電解コンデンサの駆動用電解液。
An electrolytic solution for driving an electrolytic capacitor, wherein the amount of the oxycitronellal is 0.5 to 2.0 wt% with respect to the entire electrolytic solution.
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| JP2005316316A JP4668766B2 (en) | 2005-10-31 | 2005-10-31 | Electrolytic solution for electrolytic capacitor drive |
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| JP2005316316A JP4668766B2 (en) | 2005-10-31 | 2005-10-31 | Electrolytic solution for electrolytic capacitor drive |
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| JP4668766B2 true JP4668766B2 (en) | 2011-04-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1094591A (en) * | 1996-09-24 | 1998-04-14 | Nippon Fine Chem Co Ltd | Gel-like fragrant and deodorizing composition |
| JPH10248912A (en) * | 1997-03-11 | 1998-09-22 | Car Mate Mfg Co Ltd | Liquid fragrant deodorant composition |
| JP2005019774A (en) * | 2003-06-27 | 2005-01-20 | Nichicon Corp | Driving electrolyte of electrolytic capacitor |
| JP2005045177A (en) * | 2003-07-25 | 2005-02-17 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
| JP2005064421A (en) * | 2003-08-20 | 2005-03-10 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
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2005
- 2005-10-31 JP JP2005316316A patent/JP4668766B2/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1094591A (en) * | 1996-09-24 | 1998-04-14 | Nippon Fine Chem Co Ltd | Gel-like fragrant and deodorizing composition |
| JPH10248912A (en) * | 1997-03-11 | 1998-09-22 | Car Mate Mfg Co Ltd | Liquid fragrant deodorant composition |
| JP2005019774A (en) * | 2003-06-27 | 2005-01-20 | Nichicon Corp | Driving electrolyte of electrolytic capacitor |
| JP2005045177A (en) * | 2003-07-25 | 2005-02-17 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
| JP2005064421A (en) * | 2003-08-20 | 2005-03-10 | Nichicon Corp | Electrolyte for driving electrolytic capacitor |
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| JP2007123695A (en) | 2007-05-17 |
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