JPS6155912A - Electrolyte for aluminum electrolytic condenser - Google Patents
Electrolyte for aluminum electrolytic condenserInfo
- Publication number
- JPS6155912A JPS6155912A JP17897084A JP17897084A JPS6155912A JP S6155912 A JPS6155912 A JP S6155912A JP 17897084 A JP17897084 A JP 17897084A JP 17897084 A JP17897084 A JP 17897084A JP S6155912 A JPS6155912 A JP S6155912A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- aluminum electrolytic
- ethylene glycol
- electrolytic condenser
- 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
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
本発明はアルミニウム電解コンデンサ用電解液に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electrolyte for aluminum electrolytic capacitors.
従来の技術
従来の中高圧用アルミニウム電解コンデンサ用電解質と
しては火花発生電圧が高いことからエチレングリコール
に電解質として硼酸あるいは硼酸アンモニウムを溶解し
たいわゆるエチレングリコール硼酸系の電解液が多用さ
れている。BACKGROUND OF THE INVENTION As a conventional electrolyte for medium-high voltage aluminum electrolytic capacitors, a so-called ethylene glycol borate electrolyte solution, in which boric acid or ammonium borate is dissolved as an electrolyte in ethylene glycol, is often used because of its high spark generation voltage.
本発明が解決しようとする問題点
しかしかかる電解液はその比抵抗が高いことから、電解
コンデンサとして損失もしくは等個直列抵抗値の大きな
製品しか得ることができなかった。Problems to be Solved by the Invention However, since such an electrolytic solution has a high specific resistance, it has been possible to obtain only products with large loss or equal series resistance as electrolytic capacitors.
また、かかる電解液はエチレングリコールと硼酸との間
で起こるエステル化反応で多量の水分を生成するため、
１００℃を越える高温雰囲気中における使用は、電解液
から多量の水分が蒸発し防爆弁部の膨張などの外部変形
およびこれに付随した特性劣化を起こすという問題があ
った。In addition, since such an electrolytic solution generates a large amount of water due to the esterification reaction that occurs between ethylene glycol and boric acid,
When used in a high-temperature atmosphere exceeding 100° C., there is a problem in that a large amount of water evaporates from the electrolytic solution, causing external deformation such as expansion of the explosion-proof valve portion and accompanying characteristic deterioration.
またエチレングリコールに電解質としてたと；しばアジ
ピン酸、セバシン酸あるいはその塩などを溶解したエチ
レングリコール−有機酸系の電解液においてはエチレン
グリコールとのエステル化反応が非常に遅く、また電解
液の比抵抗が低いことから電解コンデンサの損失もしく
は等個直列抵抗値を低下させることができるが、電解液
の耐電圧が低く中高圧用の電解液としては用いることが
できない欠点を有していた。In addition, when using ethylene glycol as an electrolyte, the esterification reaction with ethylene glycol is extremely slow in an ethylene glycol-organic acid electrolyte solution in which adipic acid, sebacic acid, or their salts are dissolved, and the ratio of the electrolyte solution is Since the resistance is low, it is possible to reduce the loss or equal series resistance value of the electrolytic capacitor, but the electrolytic solution has a low withstand voltage and cannot be used as an electrolytic solution for medium and high voltages.
問題を解決するための手段
本発明は上述の従来における問題点を解消し、使用温度
範囲を拡大し、火花発生電圧の高くかつ比抵抗の低いア
ルミニウム電解コンデンサ用電解液、特に中高圧用電解
液を提供するものである。Means for Solving the Problems The present invention solves the above-mentioned conventional problems, expands the operating temperature range, and provides an electrolytic solution for aluminum electrolytic capacitors that has a high spark generation voltage and a low specific resistance, especially an electrolytic solution for medium and high voltages. It provides:
本発明は上述の問題点を解消するため、エチレングリコ
ールを主体とした溶媒に１．６．１５ペンタデカントリ
カルボン酸あるいはその塩を単独または１種類以上の他
の溶質と共に溶解させたことを特徴とするアルミニウム
電解コンデンサ用電解液である。In order to solve the above-mentioned problems, the present invention is characterized in that 1.6.15 pentadecanetricarboxylic acid or its salt is dissolved alone or together with one or more other solutes in a solvent mainly composed of ethylene glycol. This is an electrolytic solution for aluminum electrolytic capacitors.
実施例 以下、本発明の具体的実施例を示す。Example Specific examples of the present invention will be shown below.
第１表に本発明の実施例と従来例について、組成、比抵
抗、火花発生電圧についての比較を示した。Table 1 shows a comparison of the composition, specific resistance, and spark generation voltage between the embodiment of the present invention and the conventional example.
第１表
第２表に第１表の従来例１．２の電解液と実施例１．２
．３．４．５の電解液を使ったアルミ電解コンデンザ、
４００ＷＶ、２２０μＦでの４５０■工−ジング時にお
ける結果および１０５℃、２０００時間高温負荷寿命試
験結果を示す。本発明あ実施例の電解液を使ったものは
全て、エージングにおける不良数、高温負荷寿命試験に
おける容量変化率、Ｌａｎδ、漏れ電流、外観の全ての
特性に対し、改善効果が得られている。Table 1 Table 2 shows the electrolyte solution of Conventional Example 1.2 in Table 1 and Example 1.2.
．． 3. Aluminum electrolytic capacitor using the electrolyte of 4.5,
The results are shown after 450cm processing at 400WV and 220μF, and the results of a high temperature load life test at 105°C for 2000 hours. All of the products using the electrolytic solutions of Examples of the present invention had improved effects on all characteristics including the number of defects during aging, capacity change rate during high temperature load life test, Lan δ, leakage current, and appearance.
第２表
発明の効果
以上のように本発明は使用温度範囲を拡大し、火花発生
電圧の高いかつ比抵抗の低いアルミ電解コンテン４ノ°
用電解液を得ることができ、本発明の電解液を使用する
ことにより信頼性の高い中高圧アルミ電解コンデンサが
得られ、工業的ならびに実用的価値の大なるものである
。Table 2 Effects of the Invention As described above, the present invention expands the operating temperature range and uses aluminum electrolytic content 4° with high spark generation voltage and low specific resistance.
By using the electrolytic solution of the present invention, a highly reliable medium-high voltage aluminum electrolytic capacitor can be obtained, which is of great industrial and practical value.
Claims (1)
ンタデカントリカルボン酸あるいはその塩を単独または
１種類以上の他の溶質と共に溶解させたことを特徴とす
るアルミニウム電解コンデンサ用電解液。An electrolytic solution for an aluminum electrolytic capacitor, characterized in that 1, 6, 15 pentadecanetricarboxylic acid or a salt thereof is dissolved alone or together with one or more other solutes in a solvent mainly composed of ethylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17897084A JPS6155912A (en) | 1984-08-27 | 1984-08-27 | Electrolyte for aluminum electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17897084A JPS6155912A (en) | 1984-08-27 | 1984-08-27 | Electrolyte for aluminum electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6155912A true JPS6155912A (en) | 1986-03-20 |
| JPH0363804B2 JPH0363804B2 (en) | 1991-10-02 |
Family
ID=16057845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17897084A Granted JPS6155912A (en) | 1984-08-27 | 1984-08-27 | Electrolyte for aluminum electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6155912A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458899B1 (en) * | 2001-03-20 | 2002-10-01 | General Electric Company | Tricarboxylic acids, method, and branched polycarbonates prepared therefrom |
-
1984
- 1984-08-27 JP JP17897084A patent/JPS6155912A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6458899B1 (en) * | 2001-03-20 | 2002-10-01 | General Electric Company | Tricarboxylic acids, method, and branched polycarbonates prepared therefrom |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0363804B2 (en) | 1991-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |