JPS62213243A - Driving electrilyte for electrolytic capacitor - Google Patents
Driving electrilyte for electrolytic capacitorInfo
- Publication number
- JPS62213243A JPS62213243A JP5725486A JP5725486A JPS62213243A JP S62213243 A JPS62213243 A JP S62213243A JP 5725486 A JP5725486 A JP 5725486A JP 5725486 A JP5725486 A JP 5725486A JP S62213243 A JPS62213243 A JP S62213243A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- driving
- acid
- electrolytic solution
- leakage current
- 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
Links
- 239000003990 capacitor Substances 0.000 title claims description 16
- 239000008151 electrolyte solution Substances 0.000 claims description 14
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 7
- 239000002904 solvent Substances 0.000 claims description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 5
- 229910052796 boron Inorganic materials 0.000 claims description 5
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims description 4
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims description 4
- 239000011976 maleic acid Substances 0.000 claims description 4
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims description 4
- -1 amine salt Chemical class 0.000 claims description 3
- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 9
- 229910052782 aluminium Inorganic materials 0.000 description 9
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 4
- GLDQAMYCGOIJDV-UHFFFAOYSA-N 2,3-dihydroxybenzoic acid Chemical compound OC(=O)C1=CC=CC(O)=C1O GLDQAMYCGOIJDV-UHFFFAOYSA-N 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- UIAFKZKHHVMJGS-UHFFFAOYSA-N beta-resorcylic acid Natural products OC(=O)C1=CC=C(O)C=C1O UIAFKZKHHVMJGS-UHFFFAOYSA-N 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 150000001638 boron Chemical class 0.000 description 1
- 229930188620 butyrolactone Natural products 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (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、アルミニウム電解コンデンサ駆動用電解液
（以下単に電解液と称する）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 (hereinafter simply referred to as electrolytic solution).
従来の技術
従来、この種の電解液としては、エチレングリコールを
主溶媒とし、これにイオノゲンを溶解したものが知られ
ている。また、各種の特性改善のために、例えば低温特
性改善のために特開昭５４−７５６４号公報に示されて
いるように、γ−ブチロラクトンを主体とする溶媒にマ
レイン酸のアミン塩を溶解して溶質とした電解液が用い
られている。BACKGROUND OF THE INVENTION Conventionally, as this type of electrolytic solution, one in which ethylene glycol is used as a main solvent and ionogen is dissolved therein is known. In addition, in order to improve various properties, for example, as shown in JP-A-54-7564, an amine salt of maleic acid is dissolved in a solvent mainly composed of γ-butyrolactone. An electrolytic solution containing a solute is used.
一方、近年電子部品をプリント基板上に取り付けるため
に、リード線部を機械的に折り曲げ加工して用いること
が多いが、このような加工はアルミニウム電解コンデン
サの漏れ電流に重大な影響を与える。一般にアルミニウ
ム電解コンデンサは陽極となる電極に誘電体酸化皮膜を
用いる。この皮膜は性質上微少な漏れ電流は避けられな
いが、それとは別に陽極電極と引き出し用アルミニウム
タブとの接合部分の漏れ電流はわずかな機械的ヌドレス
を加えただけで著しく増大する。これは、引き出し用ア
ルミニウムタブがリード線部と接続されており、リード
線部の折り曲げ加工による衝撃が直接陽極電極に伝わゆ
、皮膜に損傷を与えるためで、電解液の有する皮膜修復
作用をもってしても短時間では折り曲げ加工前のレベル
には戻らず、しかも漏れ電流値のバラツキも加工前に比
べて増大するという欠点がある。On the other hand, in recent years, lead wires are often mechanically bent in order to attach electronic components to printed circuit boards, but such processing has a significant effect on the leakage current of aluminum electrolytic capacitors. Generally, aluminum electrolytic capacitors use a dielectric oxide film for the electrode that serves as the anode. Due to the nature of this film, a slight leakage current cannot be avoided, but apart from this, the leakage current at the joint between the anode electrode and the lead-out aluminum tab increases significantly with the addition of even a slight mechanical stress. This is because the aluminum tab for pulling out is connected to the lead wire section, and the impact caused by bending the lead wire section is directly transmitted to the anode electrode, damaging the film, and the electrolyte has a film repairing effect. However, it does not return to the level before the bending process in a short period of time, and the variation in leakage current value also increases compared to before the process.
従来、この欠点を改善する方法として特公昭６０−３７
６７号公報に示されているように、レゾルシル酸の添加
が知られているが、十分な効果は得られていない。Conventionally, as a method to improve this drawback,
As shown in Japanese Patent No. 67, addition of resorcylic acid is known, but sufficient effects have not been obtained.
発明が解決しようとする問題点
本発明はこのような従来の欠点を解決するものでさらに
化成性を改善することにより、アルミニウム電解コンデ
ンサの漏れ電流の低減ならびにそのバラツキを抑制した
電解コンデンサ駆動用電解液全提供することを目的とす
るものである。Problems to be Solved by the Invention The present invention solves these conventional drawbacks and provides an electrolytic capacitor driving electrolytic capacitor that reduces the leakage current of an aluminum electrolytic capacitor and suppresses its variation by further improving the chemical composition. The purpose is to provide all liquids.
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、本発明においては、γ−
ブチロラクトンを主体とする溶媒に、マレイン酸のアミ
ン塩を溶解して溶質とした電解液に、ボン酸のホウ素錯
体もしくは、その塩を添加したものである。Means for Solving the Problems In order to solve the above problems, in the present invention, γ-
A boron complex of a boron acid or a salt thereof is added to an electrolytic solution in which an amine salt of maleic acid is dissolved as a solute in a solvent mainly composed of butyrolactone.
ボン酸のホウ素錯体のうち好ましくはボロジ−ボン酸で
ある。Among the boron complexes of boronic acid, borodi-bonic acid is preferred.
作用
この組成によりレゾルシル酸を添加した場合に比べて、
電解液の化成能力が向上し、リード線部の折り曲げ加工
によって損傷した誘電体酸化皮膜の修復をさらに速く行
なうためと考えられる。Effect: Compared to the case where resorcylic acid is added, this composition
This is thought to be because the chemical conversion ability of the electrolytic solution is improved, and the dielectric oxide film damaged by the bending of the lead wire can be repaired more quickly.
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.
γ−ブチロラクトン１００重量部、マレイン酸１０重量
部、トリエチルアミン９重量部からなる電解液（従来例
１）と、これにレゾルシル酸２重量部を添加した電解液
（従来例２）、ボロジーボン酸３重量部を添加した電解
液（本発明例）の各々を用いて、定格５ＱＷ、７１０μ
Ｆのアルミニウム電解コンデンサを製作し、漏れ電流抑
制効果について、リード線部の加工前と加工後について
それぞれ比較した結果を表１に示す。An electrolytic solution consisting of 100 parts by weight of γ-butyrolactone, 10 parts by weight of maleic acid, and 9 parts by weight of triethylamine (Conventional Example 1), an electrolytic solution to which 2 parts by weight of resorcylic acid was added (Conventional Example 2), and 3 parts by weight of borozybonic acid. Rated 5QW, 710μ
Table 1 shows the results of a comparison of the leakage current suppressing effect of an F aluminum electrolytic capacitor before and after processing the lead wire portion.
（以下 余 白）
第１図に上記電解液を用いた電解コンデンサの１０５℃
高温負荷特性を示す。第２図にボロジ−ボン酸の添加量
の変化による漏れ電流変化比、容量変化率を示す。(Left below) Figure 1 shows an electrolytic capacitor using the above electrolyte at 105°C.
Shows high temperature load characteristics. FIG. 2 shows the leakage current change ratio and capacity change rate due to changes in the amount of borodi-bonic acid added.
表１から明らかなように、本発明の電解液は従来例と比
較しリード線加工後の漏れ電流値を著しく低減できる。As is clear from Table 1, the electrolytic solution of the present invention can significantly reduce the leakage current value after lead wire processing compared to the conventional example.
また、第１図から明らかなように寿命特性においても、
従来例よりも安定した特性を得ることができる。また、
第２図から明らかなように添加量の変化に対するリード
線部の折り曲げ加工前後の漏れ電流変化比では、添加量
０．０１ｘｔ部以上で効果があり、また、寿命特性にお
いて容量変化率が１０重量部以上の添加で急激に悪化す
ることから、これらの化合物の添加量は溶媒１００重量
部につき、０．０１〜１０重量部の範囲で使用するのが
好ましい。Also, as is clear from Figure 1, in terms of life characteristics,
More stable characteristics than the conventional example can be obtained. Also,
As is clear from Figure 2, the leakage current change ratio before and after bending the lead wire portion with respect to the change in the amount of addition is effective when the amount of addition is 0.01xt part or more. Since the addition of more than 1 part causes a sudden deterioration, the amount of these compounds added is preferably in the range of 0.01 to 10 parts by weight per 100 parts by weight of the solvent.
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
アルミニウム電解コンデンサの漏れ電流を低減ならびに
その変動を抑制することができ、工業的価値の大なるも
のである。Effects of the Invention As described above, according to the present invention, the leakage current of an aluminum electrolytic capacitor can be reduced and its fluctuation can be suppressed compared to conventional electrolytic solutions, which is of great industrial value.
第１図ａ −ｃは従来の電解液および本発明の電解液を
用いたアルミニウム電解コンデンサについて容量変化率
、損失角の正接、漏れ電流の各特性の高温での経時変化
を比較して示す特性図、第２図ａ −ｂはボロジ−ポン
酸の添加量の変化によるリード線加工前後の漏れ電流変
化比、高温負荷試験後の容量変化率の各特性を比較して
示す特性図である。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第２
図Figures 1a to 1c show the characteristics of aluminum electrolytic capacitors using a conventional electrolytic solution and an electrolytic solution of the present invention, comparing the changes in capacitance change rate, tangent of loss angle, and leakage current over time at high temperatures. FIGS. 2A and 2B are characteristic diagrams showing a comparison of the leakage current change ratio before and after lead wire processing and the capacity change rate after a high temperature load test due to changes in the amount of borodiponic acid added. Name of agent: Patent attorney Toshio Nakao and 1 other person 2nd
figure
Claims (3)
ン酸のアミン塩を溶解して溶質とし、ボン酸のホウ素錯
体もしくは、その塩を添加して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) An electrolytic capacitor driving electrolytic capacitor characterized in that an amine salt of maleic acid is dissolved as a solute in a solvent mainly composed of γ-butyrolactone, and a boron complex of a boron acid or a salt thereof is added and dissolved. liquid.
とを特徴とする特許請求の範囲第１項に記載の電解コン
デンサ駆動用電解液。(2) The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the boron complex of a boronic acid is a boronic acid.
量部に対し、０．０１〜１０重量部を添加したことを特
徴とする特許請求の範囲第２項に記載の電解コンデンサ
駆動用電解液。(3) The electrolytic solution for driving an electrolytic capacitor according to claim 2, wherein 0.01 to 10 parts by weight of borodi-bonic acid or a salt thereof is added to 100 parts by weight of the solvent. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5725486A JPS62213243A (en) | 1986-03-14 | 1986-03-14 | Driving electrilyte for electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5725486A JPS62213243A (en) | 1986-03-14 | 1986-03-14 | Driving electrilyte for electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62213243A true JPS62213243A (en) | 1987-09-19 |
Family
ID=13050389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5725486A Pending JPS62213243A (en) | 1986-03-14 | 1986-03-14 | Driving electrilyte for electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62213243A (en) |
-
1986
- 1986-03-14 JP JP5725486A patent/JPS62213243A/en active Pending
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