JPH03188613A - Electrolyte for driving electrolytic capacitor - Google Patents
Electrolyte for driving electrolytic capacitorInfo
- Publication number
- JPH03188613A JPH03188613A JP1164138A JP16413889A JPH03188613A JP H03188613 A JPH03188613 A JP H03188613A JP 1164138 A JP1164138 A JP 1164138A JP 16413889 A JP16413889 A JP 16413889A JP H03188613 A JPH03188613 A JP H03188613A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- ethylene glycol
- maleic acid
- butyrolactone
- tert
- 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
- 239000003792 electrolyte Substances 0.000 title claims abstract description 10
- 239000003990 capacitor Substances 0.000 title claims abstract description 9
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 27
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 14
- BGNXCDMCOKJUMV-UHFFFAOYSA-N Tert-Butylhydroquinone Chemical compound CC(C)(C)C1=CC(O)=CC=C1O BGNXCDMCOKJUMV-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 10
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000011976 maleic acid Substances 0.000 claims abstract description 9
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 claims abstract description 9
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 claims abstract description 8
- 229940044119 2-tert-butylhydroquinone Drugs 0.000 claims abstract description 5
- 239000003112 inhibitor Substances 0.000 claims abstract description 5
- 125000005210 alkyl ammonium group Chemical group 0.000 claims abstract description 4
- 239000012046 mixed solvent Substances 0.000 claims description 4
- 239000002904 solvent Substances 0.000 abstract 2
- 239000008151 electrolyte solution Substances 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 229930188620 butyrolactone Natural products 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004250 tert-Butylhydroquinone Substances 0.000 description 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
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・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。[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electrolytic solution for driving an electrolytic capacitor (hereinafter referred to as an electrolytic solution). - Conventional technology Conventionally, as an electrolytic solution, γ-butyrolactone and ethylene glycol have been used. An electrolytic solution in which an alkyl ammonium salt of maleic acid is dissolved in a mixed solvent consisting of the following is often 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, as aluminum electrolytic capacitors have become smaller and more reliable, there has been a demand for electrolytic solutions that have low specific resistance and are stable at high temperatures. However, although it has a low resistivity initially, γ-
Maleic acid, which is a solute in butyrolactone, is significantly reduced by the polymerization reaction with ethylene glycol, which causes the problem of an increase in the specific resistance of the electrolyte and a significant increase in the loss angle tangent (tanδ) of electrolytic capacitors. Ta.
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
レイン酸のフルキル７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Ｑ、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 In order to solve the above-mentioned problems, the present invention dissolves fulkyl 7 ammonium salt of maleic acid in a mixed solvent consisting of γ-butyrolactone and ethylene glycol, and dissolves it as a polymerization inhibitor. -tert-butylhydroquinone Q, 1
This is an electrolytic solution for an electrolytic capacitor, characterized in that it is added in an amount of % by weight or more.
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。Function The electrolytic solution according to the present invention suppresses the polymerization reaction between maleic acid and ethylene glycol by the above-mentioned polymerization inhibitor,
Stable properties can be maintained even during testing and use at high temperatures.
実施例 以下、本発明の実施例について説明する。Example Examples of the present invention will be described below.
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 electrolytic solution composition and the specific resistance value of the electrolytic solution 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１０■、
１００μＦ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 rating of 10■ using the electrolyte shown in Table 1.
The results of a 2000-hour high-temperature load test of a 100 μF electrolytic capacitor prototyped at 105°C with rated voltage applied are shown. Leakage current indicates the value 1 minute after the rated voltage is applied. 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窩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 capacitor using the electrolyte according to the present invention with an electrolyte C%D has a
Low loss change and excellent durability.
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％未溝では重
合防止効果を充分作用させることができない。Further, the amount of 2-tert-butylhydroquinone added is preferably 0.1% by weight or more, and if the amount is less than 0.1% by weight, the polymerization prevention effect 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。Note that 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 clear from the above results, an alkylammonium salt of maleic acid was dissolved in a mixed solvent consisting of γ-butyrolactone and ethylene glycol, and 0.1 weight of 2-tert-butylhydroquinone was added as a polymerization inhibitor. An electrolytic solution characterized by the addition of % or more exhibits excellent properties over a wide temperature range and is of great industrial and practical value.
Claims (1)
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 electrolytic capacitor characterized in that an alkylammonium salt of maleic acid is dissolved in a mixed solvent consisting of γ-butyrolactone and ethylene glycol, and 0.1% by weight or more of 2-tert-butylhydroquinone is added as a polymerization inhibitor. Drive electrolyte.
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 true JPH03188613A (en) | 1991-08-16 |
| JP2731250B2 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113593908A (en) * | 2021-07-26 | 2021-11-02 | 广东联盈控电子科技有限公司 | Aluminum electrolytic capacitor electrolyte, preparation method thereof and aluminum electrolytic capacitor |
| JP2021184493A (en) * | 2015-09-28 | 2021-12-02 | パナソニックＩｐマネジメント株式会社 | Electrolytic capacitor |
-
1989
- 1989-06-27 JP JP1164138A patent/JP2731250B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021184493A (en) * | 2015-09-28 | 2021-12-02 | パナソニックＩｐマネジメント株式会社 | Electrolytic capacitor |
| CN113593908A (en) * | 2021-07-26 | 2021-11-02 | 广东联盈控电子科技有限公司 | Aluminum electrolytic capacitor electrolyte, preparation method thereof and aluminum 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2731250B2 (en) | 1998-03-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH03188613A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH01103820A (en) | Electrolyte for driving electrolytic capacitor | |
| JP2625464B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2584801B2 (en) | Electrolyte for driving aluminum electrolytic capacitors | |
| JP2627624B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2802094B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP3612671B2 (en) | Electrolytic solution for electrolytic capacitor drive | |
| JPH01114020A (en) | Electrolyte for driving electrolytic capacitor | |
| JP3240066B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2584815B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH01119011A (en) | Electrolytic solution for driving electrolytic capacitor | |
| JP2819475B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH0722086B2 (en) | Electrolytic solution for driving aluminum electrolytic capacitors | |
| JPH01103819A (en) | Electrolyte for driving electrolytic capacitor | |
| JP4520002B2 (en) | Electrolytic solution for driving aluminum electrolytic capacitors | |
| JPH0254921A (en) | Electrolytic solution for driving electrolytic capacitor | |
| JPH04263412A (en) | Electrolyte for driving of electrolyte capacitor | |
| JPS6272108A (en) | Electrolyte for aluminum electrolytic condenser | |
| JPH031819B2 (en) | ||
| JPH0281417A (en) | Electrolyte for driving electrolytic capacitor | |
| JP3217093B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH0216712A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH01114019A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH01171222A (en) | Driving electrolyte for electrolytic capacitor | |
| JPH0262024A (en) | Electrolyte 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 |