JP2731250B2 - Electrolyte for driving electrolytic capacitors - Google Patents
Electrolyte for driving electrolytic capacitorsInfo
- Publication number
- JP2731250B2 JP2731250B2 JP1164138A JP16413889A JP2731250B2 JP 2731250 B2 JP2731250 B2 JP 2731250B2 JP 1164138 A JP1164138 A JP 1164138A JP 16413889 A JP16413889 A JP 16413889A JP 2731250 B2 JP2731250 B2 JP 2731250B2
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- electrolytic capacitors
- electrolytic solution
- driving electrolytic
- ethylene glycol
- 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.)
- Expired - Fee Related
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電解コンデンサの駆動用電解液（以下電解
液という）に関するものである。Description: TECHNICAL FIELD The present invention relates to an electrolytic solution for driving an electrolytic capacitor (hereinafter referred to as an electrolytic solution).
従来の技術 従来、電解液としてはγ−ブチロラクトンとエチレン
グリコールとからなる混合溶媒に、マレイン酸のアルキ
ルアンモニウム塩を溶解した電解液が多用されている。2. Description of the Related Art Conventionally, as an electrolytic solution, an electrolytic solution in which an alkyl ammonium salt of maleic acid is dissolved in a mixed solvent composed of γ-butyrolactone and ethylene glycol has been frequently used.
発明が解決しようとする問題点 近年、アルミニウム電解コンデンサの小型化、高信頼
化に伴い、電解液としては比抵抗が低く、高温度で安定
な電解液が要求されている。しかし、初期において低い
比抵抗を有するものの、高温度における試験においてγ
−ブチロラクトン中において溶質であるマレイン酸は、
エチレングリコールとの重合反応により著しく減少する
ため、電解液の比抵抗が上昇し、電解コンデンサの損失
角の正接（tanδ）が著しく増加する問題を有してい
た。Problems to be Solved by the Invention In recent years, with the miniaturization and high reliability of aluminum electrolytic capacitors, there has been a demand for an electrolytic solution having a low specific resistance and being stable at a high temperature as an electrolytic solution. However, although having a low specific resistance in the initial stage, γ
The maleic acid solute in butyrolactone is
There is a problem that the specific resistance of the electrolytic solution increases because the polymerization reaction with ethylene glycol significantly reduces the tangent (tan δ) of the loss angle of the electrolytic capacitor.
問題点を解決するための手段 本発明は、上述の問題点を解決するため、γ−ブチロ
ラクトンとエチレングリコールとからなる混合溶媒に、
マレイン酸のアルキルアンモニウム塩を溶解し、重合防
止剤として２−tert−ブチルハイドロキノンを0.1重量
％以上添加したことを特徴とする電解コンデンサの電解
液である。Means for solving the problems The present invention, in order to solve the above problems, a mixed solvent consisting of γ-butyrolactone and ethylene glycol,
An electrolytic solution for an electrolytic capacitor, characterized by dissolving an alkyl ammonium salt of maleic acid and adding 0.1% by weight or more of 2-tert-butylhydroquinone as a polymerization inhibitor.
作用 本発明に係る電解液は、上述の重合防止剤によって、
マレイン酸とエチレングリコールとの重合反応を抑制
し、高温度下における試験および高温度での使用におい
ても安定な特性を維持し得る。Action The electrolytic solution according to the present invention, by the above-mentioned polymerization inhibitor,
It suppresses the polymerization reaction between maleic acid and ethylene glycol, and can maintain stable properties even in tests at high temperatures and in use at high temperatures.
実施例 以下、本発明の実施例について説明する。Examples Hereinafter, examples of the present invention will be described.
第１表は、電解液組成と温度30℃における電解液の比
抵抗値を示す。Table 1 shows the composition of the electrolyte and the specific resistance of the electrolyte at a temperature of 30 ° C.
第２表は、第１表に示す電解液を用いて定格10V、100
μＦの電解コンデンサを試作し、105℃で定格電圧印加
の高温負荷試験を2000時間行った結果を示す。漏れ電流
は定格電圧印加１分後の値を示す。各々の特性値は試料
数20個の平均値である。 Table 2 shows the rated values of 10V and 100V using the electrolyte shown in Table 1.
The results of a prototype of an electrolytic capacitor of μF and a 2000-hour high-temperature load test at 105 ° C with a rated voltage applied are shown. The leakage current indicates a value one minute after the application of the rated voltage. Each characteristic value is an average value of 20 samples.
第２表から判るように電解液Ｃ、Ｄの本発明に係る電
解液を用いた電解コンデンサは高温負荷試験において
も、損失変化が小さく、優れた耐久性を与える。 As can be seen from Table 2, the electrolytic capacitors using the electrolytic solutions C and D according to the present invention have a small loss change and provide excellent durability even in a high temperature load test.
また、２−tert−ブチルハイドロキノンの添加量は0.
1重量％以上が好ましく、0.1重量％未満では重合防止効
果を充分作用させることができない。Also, the amount of 2-tert-butylhydroquinone added was 0.
It is preferably at least 1% by weight, and if it is less than 0.1% by weight, the effect of preventing polymerization cannot be sufficiently exerted.
なお、添加量が飽和濃度を超えることは好ましくな
い。In addition, it is not preferable that the amount added exceeds the saturation concentration.
発明の効果 以上の結果から明らかなように、γ−ブチロラクトン
とエチレングリコールとからなる混合溶媒に、マレイン
酸のアルキルアンモニウム塩を溶解し、重合防止剤とし
て２−tert−ブチルハイドロキノンを0.1重量％以上添
加したことを特徴とする電解液は、広温度範囲で優れた
特性を示し、工業的ならびに実用的価値の大なるもので
ある。Effects of the Invention As is apparent from the above results, an alkylammonium salt of maleic acid is dissolved in a mixed solvent composed of γ-butyrolactone and ethylene glycol, and 0.1% by weight or more of 2-tert-butylhydroquinone is used as a polymerization inhibitor. The electrolytic solution characterized by being added exhibits excellent characteristics in a wide temperature range and has great industrial and practical value.
Claims (1)
とからなる混合溶媒に、マレイン酸のアルキルアンモニ
ウム塩を溶解し、重合防止剤として２−tert−ブチルハ
イドロキノンを0.1重量％以上添加したことを特徴とす
る電解コンデンサの駆動用電解液。An alkylammonium salt of maleic acid is dissolved in a mixed solvent comprising γ-butyrolactone and ethylene glycol, and 0.1% by weight or more of 2-tert-butylhydroquinone is added as a polymerization inhibitor. Electrolyte for driving electrolytic capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1164138A JP2731250B2 (en) | 1989-06-27 | 1989-06-27 | Electrolyte for driving electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1164138A JP2731250B2 (en) | 1989-06-27 | 1989-06-27 | Electrolyte for driving electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03188613A JPH03188613A (en) | 1991-08-16 |
| JP2731250B2 true JP2731250B2 (en) | 1998-03-25 |
Family
ID=15787472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1164138A Expired - Fee Related JP2731250B2 (en) | 1989-06-27 | 1989-06-27 | Electrolyte for driving electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2731250B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017056447A1 (en) * | 2015-09-28 | 2017-04-06 | パナソニックＩｐマネジメント株式会社 | Electrolytic capacitor |
| CN113593908B (en) * | 2021-07-26 | 2022-08-26 | 广东联盈控电子科技有限公司 | Aluminum electrolytic capacitor electrolyte, preparation method thereof and aluminum electrolytic capacitor |
-
1989
- 1989-06-27 JP JP1164138A patent/JP2731250B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03188613A (en) | 1991-08-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS62268121A (en) | Electrolyte for electrolytic capacitor | |
| JP2731250B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2625464B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2584801B2 (en) | Electrolyte for driving aluminum electrolytic capacitors | |
| JPH01103820A (en) | Electrolyte for driving electrolytic capacitor | |
| JP2945699B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP3214865B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP3749913B2 (en) | Electrolytic solution for electrolytic capacitor drive | |
| JP2627624B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2584815B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP3254983B2 (en) | Electrolyte for electrolytic capacitors | |
| JP2802094B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP3100395B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2819475B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH01106414A (en) | Electrolyte for driving electrolytic capacitor | |
| JP3612671B2 (en) | Electrolytic solution for electrolytic capacitor drive | |
| JP3347154B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP3169970B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH01103819A (en) | Electrolyte for driving electrolytic capacitor | |
| JP3285991B2 (en) | Electrolytic solution for driving electrolytic capacitor and electrolytic capacitor using the same | |
| JP3212322B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPS6272108A (en) | Electrolyte for aluminum electrolytic condenser | |
| JPH0412512A (en) | Driving electrolyte of aluminum electrolytic capacitor | |
| JPH0722086B2 (en) | Electrolytic solution for driving aluminum electrolytic capacitors | |
| JPH0254921A (en) | Electrolytic solution for driving electrolytic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071219 Year of fee payment: 10 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081219 Year of fee payment: 11 |
|
| LAPS | Cancellation because of no payment of annual fees |