JPH0782967B2 - Electrolytic solution for driving electrolytic capacitors - Google Patents
Electrolytic solution for driving electrolytic capacitorsInfo
- Publication number
- JPH0782967B2 JPH0782967B2 JP2144633A JP14463390A JPH0782967B2 JP H0782967 B2 JPH0782967 B2 JP H0782967B2 JP 2144633 A JP2144633 A JP 2144633A JP 14463390 A JP14463390 A JP 14463390A JP H0782967 B2 JPH0782967 B2 JP H0782967B2
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- driving
- electrolytic solution
- solution
- capacitors
- 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 - Lifetime
Links
Landscapes
- Secondary Cells (AREA)
- Electric Double-Layer Capacitors Or The Like (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駆動用電解液に関するものであ
る。TECHNICAL FIELD The present invention relates to an electrolytic solution for driving an electrolytic capacitor.
［従来の技術］ アルミニウム電解コンデンサは、アルミニウム陽極箔と
陰極箔とをセパレータを介して巻回したコンデンサ素子
に電解コンデンサ駆動用電解液を含浸し、このコンデン
サ素子をアルミニウム製あるいは合成樹脂製の外装ケー
スに封口体とともに組み込んだ構造となっている。[Prior Art] In an aluminum electrolytic capacitor, a capacitor element in which an aluminum anode foil and a cathode foil are wound via a separator is impregnated with an electrolytic capacitor driving electrolytic solution, and the capacitor element is made of aluminum or synthetic resin. It has a structure that is incorporated into the case together with the sealing body.
このような電解コンデンサ駆動用電解液としては極性有
機溶媒にカルボン酸またはその塩を溶解したものが良く
使用され、特に低電圧用の電解コンデンサにはγ−ブチ
ロラクトンを主体とした溶媒にフタル酸の第４級アンモ
ニウム塩やトリエチルアミン酸を溶質として溶解した電
解液が使用されている。As an electrolytic solution for driving such an electrolytic capacitor, a solution in which a carboxylic acid or a salt thereof is dissolved in a polar organic solvent is often used. An electrolytic solution in which a quaternary ammonium salt or triethylamine acid is dissolved as a solute is used.
［発明が解決しようとする課題］ 上述した電解コンデンサ駆動用電解液において、第４級
アンモニウム塩を含有した電解液においては電解液の電
導度は高いが、火花電圧が低いという問題点がある。一
方、トリエチルアミン塩を含有した電解液においては電
解液の電導度が低いという問題点がある。[Problems to be Solved by the Invention] In the electrolytic solution for driving an electrolytic capacitor described above, the electrolytic solution containing a quaternary ammonium salt has a high electric conductivity but a low spark voltage. On the other hand, the electrolyte containing a triethylamine salt has a problem that the conductivity of the electrolyte is low.
［課題を解決するための手段］ しかるに、本発明は上述の課題を解決するために、電導
度が高く、かつ火花電圧の高い電解コンデンサ駆動用電
解液を提供するものであり、具体的には、γ−ブチロラ
クトンを主体とした溶媒にフタル酸のジメチルエチルア
ミン塩を溶解としたものである。[Means for Solving the Problems] However, in order to solve the above-mentioned problems, the present invention provides an electrolytic solution for driving an electrolytic capacitor having a high electric conductivity and a high spark voltage. , Γ-butyrolactone is the main solvent in which the dimethylethylamine salt of phthalic acid is dissolved.
本発明において、溶媒としてはγ−ブチロラクトンを主
体とするが、これに他の極性有機溶媒、例えばエチレン
グリコールなどを加え、複合溶媒としてもよい。In the present invention, γ-butyrolactone is mainly used as the solvent, but other polar organic solvent such as ethylene glycol may be added to the solvent to form a composite solvent.
電解コンデンサ駆動用電解液における溶質の濃度として
は１〜35wt％が好ましく、特には電導度および火花電圧
などの点から10〜25wt％が好ましい。The solute concentration in the electrolytic solution for driving the electrolytic capacitor is preferably 1 to 35 wt%, and particularly preferably 10 to 25 wt% from the viewpoint of electrical conductivity and spark voltage.
また、電解液中、水や糖アルコールやその他の酸または
その塩を添加してもよい。Further, water, sugar alcohol, other acids or salts thereof may be added to the electrolytic solution.
［実施例］ 次に、本発明に係る駆動用電解液の実施例を比較例とと
もに示す。電解液組成はwt％で示す。電導度、（mS/c
m）は液温40℃で測定し、また火花電圧（Ｖ）は液温85
℃でそれぞれ測定したものである。[Examples] Next, examples of the driving electrolytic solution according to the present invention will be shown together with comparative examples. The electrolytic solution composition is shown by wt%. Conductivity, (mS / c
m) is measured at a liquid temperature of 40 ° C, and the spark voltage (V) is measured at a liquid temperature of 85
It was measured at each degree.
［発明の効果］ 第１表からも分かるように、本発明実施例に係る電解コ
ンデンサ駆動用電解液は電解液の電導度の低下を招くこ
となく、火花電圧を高くすることができる。したがっ
て、従来は耐電圧が50V程度までしか使用できなかった
電解コンデンサを90V程度まで使用範囲を拡大すること
ができるという利点を奏するものである。 [Effects of the Invention] As can be seen from Table 1, the electrolytic solution for driving an electrolytic capacitor according to the example of the present invention can increase the spark voltage without lowering the conductivity of the electrolytic solution. Therefore, there is an advantage that the range of use of the electrolytic capacitor, which has been conventionally usable only with a withstand voltage of about 50 V, can be expanded to about 90 V.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 山田 秀美 神奈川県藤沢市辻堂新町２丁目２番１号 エルナー株式会社内 (56)参考文献 特開 平２−62026（ＪＰ，Ａ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hidemi Yamada 2-2-1 Tsujido Shinmachi, Fujisawa City, Kanagawa Elner Co., Ltd. (56) Reference JP-A-2-62026 (JP, A)
Claims (1)
タル酸のジメチルエチルアミン塩を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 solution for driving an electrolytic capacitor, characterized in that a dimethylethylamine salt of phthalic acid is dissolved in a solvent mainly composed of γ-butyrolactone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2144633A JPH0782967B2 (en) | 1990-06-01 | 1990-06-01 | Electrolytic solution for driving electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2144633A JPH0782967B2 (en) | 1990-06-01 | 1990-06-01 | Electrolytic solution for driving electrolytic capacitors |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6275597A Division JPH07201670A (en) | 1994-10-14 | 1994-10-14 | Electrolytic capacitor driving electrolytic solution |
| JP27559694A Division JPH07201669A (en) | 1994-10-14 | 1994-10-14 | Electrolytic capacitor driving electrolytic solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0437112A JPH0437112A (en) | 1992-02-07 |
| JPH0782967B2 true JPH0782967B2 (en) | 1995-09-06 |
Family
ID=15366592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2144633A Expired - Lifetime JPH0782967B2 (en) | 1990-06-01 | 1990-06-01 | Electrolytic solution for driving electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0782967B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2906011B2 (en) * | 1993-04-26 | 1999-06-14 | エルナー株式会社 | Aluminum electrolytic capacitor and electrolyte for driving aluminum electrolytic capacitor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0262026A (en) * | 1988-08-29 | 1990-03-01 | Matsushita Electric Ind Co Ltd | Electrolyte for driving electrolytic capacitor |
-
1990
- 1990-06-01 JP JP2144633A patent/JPH0782967B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0437112A (en) | 1992-02-07 |
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