JPS59124117A - Electrolyte for electrolytic condenser - Google Patents
Electrolyte for electrolytic condenserInfo
- Publication number
- JPS59124117A JPS59124117A JP23091982A JP23091982A JPS59124117A JP S59124117 A JPS59124117 A JP S59124117A JP 23091982 A JP23091982 A JP 23091982A JP 23091982 A JP23091982 A JP 23091982A JP S59124117 A JPS59124117 A JP S59124117A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- electrolyte
- salt
- electrolytic solution
- electrolytic condenser
- 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
Landscapes
- Secondary Cells (AREA)
- Primary Cells (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】
本発明は電解コンデンサ用電解液に関Ｊ−る乙のである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an electrolytic solution for electrolytic capacitors.
アルミ等の箔を巻回した電解コンデンサは、一般に、コ
ンデンサ素子に電解液を含浸し、金属ケース等にコンデ
ンサ素子を収納し蓋により密閉した構造になっている。An electrolytic capacitor made of aluminum or other foil wrapped around the foil generally has a structure in which a capacitor element is impregnated with an electrolytic solution, the capacitor element is housed in a metal case, etc., and the capacitor element is sealed with a lid.
そして使用中に電解液が分解してガスが発生し、蓋に設
けた防爆弁が作動して内部の電解液がケース外部に飛び
敗ることがある。そのために、このような電解コンデン
サを組み込んだ七笈器において、飛び散った電解液のた
めに他の電子部品が損傷したり、回路が短絡不良を起こ
したりする欠点があった。During use, the electrolyte decomposes and gas is generated, which may cause the explosion-proof valve installed in the lid to operate, causing the electrolyte inside the case to splash out. For this reason, in a seven-lit device that incorporates such an electrolytic capacitor, other electronic components may be damaged due to the splashed electrolyte, and short circuits may occur.
本発明は、以上の欠点を改良し、ガスの発生し難い電解
コンデン１す用電解液の提供を目的とするものである。The object of the present invention is to improve the above-mentioned drawbacks and provide an electrolytic solution for use in electrolytic condensers that does not easily generate gas.
本発明は、上記の目的を達成づ゛るために、溶質にＰ−
ニトロ安息香酸又はその塩を添加することを特徴とする
電解コンデンサ用電解液を提供す゛るものである。In order to achieve the above object, the present invention provides P-
The present invention provides an electrolytic solution for an electrolytic capacitor, which is characterized by adding nitrobenzoic acid or a salt thereof.
以下、本発明を実施例に基づい”Ｃ説明する。Hereinafter, the present invention will be explained based on examples.
溶媒としてエチレングリコールを、溶質としては硼酸や
その塩またはアジピン酸等のジカルボン酸ヤその塩を用
い、この溶質にＰ−ニトロ安息香酸又はその塩を０．１
％〜数％添加し、任意用の水を加えて電解液とする。Ethylene glycol is used as the solvent, boric acid or its salt, or a dicarboxylic acid such as adipic acid is used as the solute, and P-nitrobenzoic acid or its salt is added to the solute at 0.1%.
% to several % and optionally add water to prepare an electrolytic solution.
Ｊなわち、溶質に添加されたＰ−ニトロ安息香酸又はそ
の塩は電解液中のガスを吸収する作用を有している。そ
のために、電解コンデンサは、ケース内部のガス圧の上
昇が押えられ、爆発最が減少する。In other words, P-nitrobenzoic acid or its salt added to the solute has the effect of absorbing gas in the electrolyte. Therefore, in the electrolytic capacitor, the increase in gas pressure inside the case is suppressed, and the possibility of explosion is reduced.
実際、定格１００Ｖ、 １８００μＦの電解コンデンサ
について、本発明によるものと従来例によるものとを各
１０個づつ１０５℃の高温負荷試験を行なったところ、
１００ＯＨＶ Ｉにおいて前者は全数が外観的に異常が
なかったのに対して、後者は全数、防爆弁が作動してい
た。この試験に用いた電解液の組成は、ｈｉｔ者がエチ
レングリコール７８用ω％、アジピン酸１２車石％、水
１０重Ｍ％及びＰ−二１〜ロ安息香酸アンモン１％で、
後者がエチレングリコ−ルア８槍■％、アジピン酸１２
重嶺％、水１０重量％である。In fact, when we conducted a high temperature load test at 105°C on 10 electrolytic capacitors with a rating of 100 V and 1800 μF, 10 each according to the present invention and 10 according to the conventional example.
Of the 100OHV I, all of the former had no external abnormalities, while all of the latter had explosion-proof valves operating. The composition of the electrolytic solution used in this test was ethylene glycol 78 ω%, adipic acid 12% by weight, water 10% by weight, and P-21 to ammonium benzoate 1%.
The latter is 8% ethylene glycol and 12% adipic acid.
% by weight and 10% by weight of water.
なお、溶質に添加するＰ−ニトロ安息香酸又はその塩は
１％以上である方が好ましく、それより少ないと、静電
容（３）の変化率が急増づる。The amount of P-nitrobenzoic acid or its salt added to the solute is preferably 1% or more, and if it is less than that, the rate of change in capacitance (3) increases rapidly.
以上の通り、本発明によれば、Ｐ−ニトロ安息香酸又は
その塩からなるガス吸収剤を添加したので、コンデンサ
の爆発を減少でき、他の電子部品の損傷等を防止しうる
電解コンデンサ用電解液が４ｑられる。As described above, according to the present invention, since a gas absorbent made of P-nitrobenzoic acid or its salt is added, an electrolytic capacitor for electrolytic capacitors can reduce explosions of capacitors and prevent damage to other electronic components. 4q of liquid is taken.
特許出願人 日立コンデンサ株式会社Patent applicant: Hitachi Capacitor Co., Ltd.
Claims (2)
二１〜ロ安息香酸又はその塩を添加することを特徴とす
る電解コンデンサ用電解液。(1) In the electrolyte for electrolytic condensation, the solute contains P-
21 - An electrolytic solution for an electrolytic capacitor, characterized in that it contains lobenzoic acid or a salt thereof.
上である特許請求の範囲第１項記載の電解コンデンサ用
電解液。(2) The electrolytic solution for an electrolytic capacitor according to claim 1, wherein the amount of P-nitrobenzoic acid or its salt added is 1% or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23091982A JPS59124117A (en) | 1982-12-29 | 1982-12-29 | Electrolyte for electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23091982A JPS59124117A (en) | 1982-12-29 | 1982-12-29 | Electrolyte for electrolytic condenser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59124117A true JPS59124117A (en) | 1984-07-18 |
Family
ID=16915333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23091982A Pending JPS59124117A (en) | 1982-12-29 | 1982-12-29 | Electrolyte for electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59124117A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290920A (en) * | 1985-09-13 | 1987-04-25 | 旭硝子株式会社 | Long life electrolytic capacitor |
| JPH0410513A (en) * | 1990-04-27 | 1992-01-14 | Hitachi Aic Inc | Electrolyte for electrolytic capacitor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5776826A (en) * | 1980-10-30 | 1982-05-14 | Elna Co Ltd | Electrolyte for driving electrolytic condenser |
-
1982
- 1982-12-29 JP JP23091982A patent/JPS59124117A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5776826A (en) * | 1980-10-30 | 1982-05-14 | Elna Co Ltd | Electrolyte for driving electrolytic condenser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6290920A (en) * | 1985-09-13 | 1987-04-25 | 旭硝子株式会社 | Long life electrolytic capacitor |
| JPH0410513A (en) * | 1990-04-27 | 1992-01-14 | Hitachi Aic Inc | Electrolyte for electrolytic capacitor |
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