JPS63261820A - Electrolyte for driving electrolytic capacitor - Google Patents
Electrolyte for driving electrolytic capacitorInfo
- Publication number
- JPS63261820A JPS63261820A JP9656487A JP9656487A JPS63261820A JP S63261820 A JPS63261820 A JP S63261820A JP 9656487 A JP9656487 A JP 9656487A JP 9656487 A JP9656487 A JP 9656487A JP S63261820 A JPS63261820 A JP S63261820A
- Authority
- JP
- Japan
- Prior art keywords
- salt
- electrolytic capacitor
- electrolyte
- driving
- electrolytic solution
- 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 description 17
- 239000003792 electrolyte Substances 0.000 title claims description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 14
- 239000008151 electrolyte solution Substances 0.000 claims description 13
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 10
- -1 alkyl phosphoric acid ester Chemical class 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 9
- 229910019142 PO4 Inorganic materials 0.000 claims description 7
- 239000010452 phosphate Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 7
- OTLNPYWUJOZPPA-UHFFFAOYSA-N 4-nitrobenzoic acid Chemical compound OC(=O)C1=CC=C([N+]([O-])=O)C=C1 OTLNPYWUJOZPPA-UHFFFAOYSA-N 0.000 claims description 4
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical class CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 claims description 4
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical class C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 claims description 4
- 125000000217 alkyl group Chemical group 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical class CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- 239000005711 Benzoic acid Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 235000010233 benzoic acid Nutrition 0.000 description 1
- BNMJSBUIDQYHIN-UHFFFAOYSA-N butyl dihydrogen phosphate Chemical compound CCCCOP(O)(O)=O BNMJSBUIDQYHIN-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- UCQFCFPECQILOL-UHFFFAOYSA-N diethyl hydrogen phosphate Chemical compound CCOP(O)(=O)OCC UCQFCFPECQILOL-UHFFFAOYSA-N 0.000 description 1
- QVKQJEWZVQFGIY-UHFFFAOYSA-N dipropyl hydrogen phosphate Chemical compound CCCOP(O)(=O)OCCC QVKQJEWZVQFGIY-UHFFFAOYSA-N 0.000 description 1
- ZJXZSIYSNXKHEA-UHFFFAOYSA-L ethyl phosphate(2-) Chemical compound CCOP([O-])([O-])=O ZJXZSIYSNXKHEA-UHFFFAOYSA-L 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- NVTPMUHPCAUGCB-UHFFFAOYSA-N pentyl dihydrogen phosphate Chemical compound CCCCCOP(O)(O)=O NVTPMUHPCAUGCB-UHFFFAOYSA-N 0.000 description 1
- MHZDONKZSXBOGL-UHFFFAOYSA-N propyl dihydrogen phosphate Chemical compound CCCOP(O)(O)=O MHZDONKZSXBOGL-UHFFFAOYSA-N 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Primary Cells (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
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関するものであり、詳しく言
えば、アルミ電解コンデンサ駆動用電解液に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to electrolytic capacitors, and more specifically, to an electrolytic solution for driving an aluminum electrolytic capacitor.
従来の技術
従来、電解コンデンサ駆動用電解液としては、エチレン
グリコールにイオノゲンを溶解した電解液が用いられて
いる。この種の電解コンデンサは低温における特性を悪
化させる。以上のような欠点を改良するため、特開昭６
１−７０７１１号公報にみられるように、γ−ブチロラ
クトンを溶媒トシ、フタル酸のトリエチルアミン塩を用
いる例や、特開昭５４−７５６４号公報にみられるよう
に、ｒ−ブチロラクトンとエチレングリコールの混合溶
媒にマレイン酸のアミン塩を用いる例がある。2. Description of the Related Art Conventionally, as an electrolytic solution for driving an electrolytic capacitor, an electrolytic solution in which ionogen is dissolved in ethylene glycol has been used. This type of electrolytic capacitor has poor characteristics at low temperatures. In order to improve the above-mentioned drawbacks,
1-70711, using γ-butyrolactone as a solvent and triethylamine salt of phthalic acid, and JP-A-54-7564, a mixture of r-butyrolactone and ethylene glycol. There is an example of using an amine salt of maleic acid as a solvent.
発明が解決しようとする問題点
しかし、従来の問題点として、γ−ブチロラクトンを溶
媒とし、フタル酸のトリエチルアミン塩を用いた場合、
比電導度が低く、また１０５℃中では高い安定性を示す
が、１２５°Ｃ中ではあまシ安定でないという欠点があ
る。また、γ−ブチロラクトンとエチレングリコールの
混合溶媒にマレイン酸のアミン塩を用いた場合、比電導
度は十分高い値が得られるが、高温での安定性に欠け１
０５°Ｃ中でも安定性は低いという欠点がある。Problems to be Solved by the Invention However, as a conventional problem, when using γ-butyrolactone as a solvent and triethylamine salt of phthalic acid,
It has a low specific conductivity, and although it shows high stability at 105°C, it is not very stable at 125°C. In addition, when an amine salt of maleic acid is used in a mixed solvent of γ-butyrolactone and ethylene glycol, a sufficiently high value of specific conductivity can be obtained, but it lacks stability at high temperatures and
It has the disadvantage of low stability even at 0.05°C.
本発明はこのような従来の欠点を解決するもので、高電
導度で、高温劣化の小さい電解液を提供し、電解コンデ
ンサの損失特性の改善、並びに高温で長寿命化を図るこ
とを目的とする。The present invention solves these conventional drawbacks, and aims to provide an electrolytic solution with high conductivity and little deterioration at high temperatures, to improve the loss characteristics of electrolytic capacitors, and to extend their lifespan at high temperatures. do.
問題点を解決するだめの手段
上記問題点を解決するために、本発明はγ−ブチロラク
トンを主体とする溶媒に、７タル酸のテトラメチルアン
モニウム塩あるいは、テトラエチルアンモニウム塩を溶
解して溶質とし、さらにアルキルリン酸エステルもしく
はその塩および／″！たはＰ−ニトロ安息香酸もしくは
その塩を添加剤として用いる電解コンデンサ駆動用電解
液である。Means for Solving the Problems In order to solve the above problems, the present invention includes dissolving tetramethylammonium salt or tetraethylammonium salt of heptalic acid as a solute in a solvent mainly composed of γ-butyrolactone, Further, it is an electrolytic solution for driving an electrolytic capacitor using an alkyl phosphoric acid ester or a salt thereof and /''! or P-nitrobenzoic acid or a salt thereof as additives.
アルキルリン酸エステルのアルキル基はどのようなもの
を用いても効果は認められるが、好ましくハ、モノエチ
ルリン酸エステル、モノプロピルリン酸エステル、モノ
ブチルリン酸エステル、モノペンチルリン酸エステル、
ジエチルリン酸エステル、ジプロピルリン酸エステル、
ジプチルリン酸エステル、ジベンチルリン酸エステルお
よびこれらの塩である。Although any alkyl group in the alkyl phosphate ester can be used, the effect is recognized, but C. monoethyl phosphate, monopropyl phosphate, monobutyl phosphate, monopentyl phosphate,
diethyl phosphate, dipropyl phosphate,
These are diptyl phosphate, dibentyl phosphate, and salts thereof.
アルキルリン酸エステルもしくはその塩の添加量は電解
液量に対して０．０１〜６．０重量％が好ましい。これ
は０．０１Ｍ量％以下では効果がなく。The amount of the alkyl phosphate ester or its salt added is preferably 0.01 to 6.0% by weight based on the amount of the electrolytic solution. This has no effect below 0.01 M%.
５．０重量％を越えると電導度低下が大きくなるからで
ある。This is because if the content exceeds 5.0% by weight, the electrical conductivity will decrease significantly.
ｐ−二’）口安息香酸もしくはその塩の添加量は電解液
量に対してＱ０１〜６．０重量％が好ましい。The amount of p-2') benzoic acid or its salt added is preferably Q01 to 6.0% by weight based on the amount of the electrolytic solution.
これは００１重量％以下では効果がなく、５．０重量％
を越えると火花電圧が低下するからである。This has no effect below 0.001% by weight, and 5.0% by weight
This is because the spark voltage will drop if it exceeds .
作用
γ−ブチロラクトンを主体とする溶媒に、フタル酸のテ
トラメチルアンモニウム塩あるいは、テトラエチルアン
モニウム塩を溶質として組合わせた場合高い電導度が得
られる。Function High conductivity can be obtained when a solvent containing γ-butyrolactone is combined with a tetramethylammonium salt or a tetraethylammonium salt of phthalic acid as a solute.
γ−ブチロラクトンを主体とする溶媒の時、フタル酸は
高温中で分解しに＜〈、またテトラメチルアンモニウム
あるいはテトラエチルアンモニウムとの反応も起こりに
くい。このため高温中での特性変化がきわめて低い電解
液が得られると考えられる。When the solvent is mainly composed of γ-butyrolactone, phthalic acid is not likely to decompose at high temperatures, nor is it likely to react with tetramethylammonium or tetraethylammonium. Therefore, it is thought that an electrolytic solution with extremely low change in properties at high temperatures can be obtained.
さらにアルキルリン酸エステル、あるいはＰ−二トロ安
息香酸がアルミニウム電極箔表面に吸着し、誘電体酸化
皮膜を保護することにより、静電容量の減少及びｔａｎ
δの増加が大幅に抑制できるものと考えられる。Furthermore, alkyl phosphate ester or P-nitrobenzoic acid adsorbs to the surface of the aluminum electrode foil and protects the dielectric oxide film, reducing capacitance and reducing tan.
It is considered that the increase in δ can be significantly suppressed.
実施例 以下、本発明による実施例について述べる。Example Examples according to the present invention will be described below.
表１に本発明の実施例及び従来の７解液組成例並びに常
温における比電導度を示す。Table 1 shows examples of the present invention, seven conventional solution composition examples, and specific conductivity at room temperature.
表１ 実施例並びに従来例の電解液組成及び比電導度表
１から明らかなように、従来の電解液と比較して高い比
電導度を得ることができる。Table 1 Electrolytic Solution Composition and Specific Electrical Conductivity of Examples and Conventional Examples As is clear from Table 1, a higher specific electrical conductivity can be obtained compared to the conventional electrolytic solution.
表２に１表１の従来例１．従来例２．実施例１゜実施例
２．実施例３および実施例６の電解液を用いたコンデン
サの初期特性を示す。試料コンデンサは６．３Ｖ １０
００μＦ （φ１０Ｘ１２．５）１７）フルミ電解コン
デンサである。Table 2 shows the conventional example 1 in Table 1. Conventional example 2. Example 1゜Example 2. The initial characteristics of capacitors using the electrolytes of Examples 3 and 6 are shown. Sample capacitor is 6.3V 10
00μF (φ10X12.5)17) This is a Fulmi electrolytic capacitor.
′表 ２ 初期特性比較
表２から明らかなように、実施例は従来例と比較してｔ
ａｎδを低くすることができる。'Table 2 As is clear from Initial Characteristics Comparison Table 2, the example has t compared with the conventional example.
anδ can be lowered.
第１図〜第３図に、表２で示したアル着電解コンデンサ
の１２６℃における特性経時変化を示している。第１図
は定格電圧印加における静電容量変化、第２図は定格電
圧印加における損失角の正接変化、第３図は電圧印加な
しにおける漏れ電流変化を示す図である。FIGS. 1 to 3 show changes in characteristics over time at 126° C. of the alkali electrolytic capacitors shown in Table 2. FIG. 1 shows the capacitance change when the rated voltage is applied, FIG. 2 shows the loss angle tangent change when the rated voltage is applied, and FIG. 3 shows the leakage current change when no voltage is applied.
この第１図〜第３図から明らかなように、高温中におい
ても特性変化はきわめて小さく、信頼性の高いコンデン
サを得ることができる。As is clear from FIGS. 1 to 3, the change in characteristics is extremely small even at high temperatures, and a highly reliable capacitor can be obtained.
発明の効果
以上のように本発明によれば、従来の電解液と比較して
、損失特性を改善でき、しかも１２６℃という高温中で
もきわめて安定な信頼性の高い電解コンデンサを提供で
き、工業的価値の犬なるものである。Effects of the Invention As described above, according to the present invention, it is possible to provide a highly reliable electrolytic capacitor that can improve loss characteristics compared to conventional electrolytes and is extremely stable even at a high temperature of 126°C, and has industrial value. It is a dog.
第１図〜第３図はそれぞれ従来の電解液および本発明の
電解液を用いた定格６，３Ｖ１０００μＦ（φ１０Ｘ１
２．５）のアルミ電解コンデンサの１２６℃における特
性経時変化を示したものであシ、第１図は定格電圧印加
における静電容量変化、第２図は定格電圧印加における
損失角の正接変化。
第３図は電圧印加なしにおける漏れ電流変化を示した特
性図である。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２壱 碕 関（ｈｒａ）
綺 関 （ｈｎｓ）
第 ３ 図
Ｒ間 （ｈｒｓ）Figures 1 to 3 show the rated 6,3V 1000μF (φ10X1
Figure 1 shows the change in capacitance when the rated voltage is applied, and Figure 2 shows the change in the tangent of the loss angle when the rated voltage is applied. FIG. 3 is a characteristic diagram showing changes in leakage current when no voltage is applied. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2: 1-3 (HRA) 3-way (HNS) Figure 3: R (HRS)
Claims (4)
酸のテトラメチルアンモニウム塩あるいはテトラエチル
アンモニウム塩を溶質とし、アルキルリン酸エステルも
しくはその塩、および／またはＰ−ニトロ安息香酸もし
くはその塩を添加溶解したことを特徴とする電解コンデ
ンサ駆動用電解液。(1) Add and dissolve an alkyl phosphoric acid ester or its salt and/or P-nitrobenzoic acid or its salt into a solvent mainly composed of γ-butyrolactone, using a tetramethylammonium salt or tetraethylammonium salt of phthalic acid as a solute. An electrolytic solution for driving an electrolytic capacitor, which is characterized by:
ような化学構造のものである特許請求の範囲第１項記載
の電解コンデンサ駆動用電解液。 （Ａ）▲数式、化学式、表等があります▼（Ｂ）▲数式
、化学式、表等があります▼ Ｒはアルキル基(2) The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the alkyl phosphate ester has the following chemical structures (A) and (B). (A) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (B) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ R is an alkyl group
が電解液重量に対して０．０１〜５．０重量にであるこ
とを特徴とする特許請求の範囲第２項記載の電解コンデ
ンサ駆動用電解液。(3) The electrolyte for driving an electrolytic capacitor according to claim 2, characterized in that the amount of the alkyl phosphate ester or its salt added is 0.01 to 5.0% by weight with respect to the weight of the electrolytic solution. liquid.
解液重量に対して０．０１〜５．０重量％であることを
特徴とする特許請求の範囲第１項記載の電解コンデンサ
駆動用電解液。(4) For driving an electrolytic capacitor according to claim 1, wherein the amount of P-nitrobenzoic acid or its salt added is 0.01 to 5.0% by weight based on the weight of the electrolyte. Electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9656487A JPH07118432B2 (en) | 1987-04-20 | 1987-04-20 | Electrolytic solution for driving electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9656487A JPH07118432B2 (en) | 1987-04-20 | 1987-04-20 | Electrolytic solution for driving electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63261820A true JPS63261820A (en) | 1988-10-28 |
| JPH07118432B2 JPH07118432B2 (en) | 1995-12-18 |
Family
ID=14168528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9656487A Expired - Fee Related JPH07118432B2 (en) | 1987-04-20 | 1987-04-20 | Electrolytic solution for driving electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07118432B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63302514A (en) * | 1987-06-02 | 1988-12-09 | Nichicon Corp | Electrolyte for driving aluminum electrolytic capacitor |
| JPH02251125A (en) * | 1989-03-24 | 1990-10-08 | Marcon Electron Co Ltd | Electrolyte for driving electrolytic capacitor |
| JP2017516287A (en) * | 2015-05-04 | 2017-06-15 | シェンヂェン キャプケム テクノロジー カンパニー リミテッドＳｈｅｎｚｈｅｎ Ｃａｐｃｈｅｍ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． | Electrolytic solution for aluminum electrolytic capacitor and aluminum electrolytic capacitor using the same |
-
1987
- 1987-04-20 JP JP9656487A patent/JPH07118432B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63302514A (en) * | 1987-06-02 | 1988-12-09 | Nichicon Corp | Electrolyte for driving aluminum electrolytic capacitor |
| JPH02251125A (en) * | 1989-03-24 | 1990-10-08 | Marcon Electron Co Ltd | Electrolyte for driving electrolytic capacitor |
| JP2017516287A (en) * | 2015-05-04 | 2017-06-15 | シェンヂェン キャプケム テクノロジー カンパニー リミテッドＳｈｅｎｚｈｅｎ Ｃａｐｃｈｅｍ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｔｄ． | Electrolytic solution for aluminum electrolytic capacitor and aluminum electrolytic capacitor using the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07118432B2 (en) | 1995-12-18 |
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