JPH07201670A - Electrolytic capacitor driving electrolytic solution - Google Patents
Electrolytic capacitor driving electrolytic solutionInfo
- Publication number
- JPH07201670A JPH07201670A JP6275597A JP27559794A JPH07201670A JP H07201670 A JPH07201670 A JP H07201670A JP 6275597 A JP6275597 A JP 6275597A JP 27559794 A JP27559794 A JP 27559794A JP H07201670 A JPH07201670 A JP H07201670A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic solution
- electrolytic
- driving
- electrolytic capacitor
- butyrolactone
- 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
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【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。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrolytic solution for driving an electrolytic capacitor.
【０００２】[0002]
【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。2. Description of the Related Art In an aluminum electrolytic capacitor, a capacitor element formed by winding an aluminum anode foil and a cathode foil via a separator is impregnated with an electrolytic solution for driving an electrolytic capacitor, 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.
【０００３】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サリチル酸
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, and particularly for a low voltage electrolytic capacitor, a solvent mainly composed of γ-butyrolactone is used. An electrolytic solution in which a quaternary ammonium salt of salicylic acid or triethylamine acid is dissolved as a solute is used.
【０００４】[0004]
【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。In the electrolytic solution for driving the 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.
【０００５】[0005]
【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
にサリチル酸のジメチルエチルアミン塩を溶質としたも
のである。However, in order to solve the above-mentioned problems, the present invention provides an electrolytic solution for driving an electrolytic capacitor, which has a high electric conductivity and a high spark voltage. , Γ-butyrolactone as a main solvent, and dimethylethylamine salt of salicylic acid as a solute.
【０００６】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 thereto to form a composite solvent.
【０００７】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。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。The concentration of the solute in the electrolytic capacitor driving electrolytic solution is preferably 1 to 35 wt%, and particularly preferably 10 to 25 wt% from the viewpoint of the electric conductivity and the spark voltage. Further, water, sugar alcohol, other acids or salts thereof may be added to the electrolytic solution.
【０００８】[0008]
【実施例】次に、本発明に係る駆動用電解液の実施例を
比較例とともに表１に示す。電解液組成はｗｔ％で示
す。電導度（ｍＳ／ｃｍ）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 Examples of the driving electrolyte solution according to the present invention are shown in Table 1 together with comparative examples. The electrolytic solution composition is shown in wt%. The electrical conductivity (mS / cm) was measured at a liquid temperature of 40 ° C, and the spark voltage (V) was measured at a liquid temperature of 85 ° C.
【０００９】[0009]
【表１】 [Table 1]
【００１０】[0010]
【発明の効果】表１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４０Ｖ程度までしか使
用できなかった電解コンデンサを７０Ｖ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。As can be seen from Table 1, the electrolytic solution for driving an electrolytic capacitor according to the embodiment of the present invention can increase the spark voltage without causing a decrease in the electric 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 withstand voltage up to about 40V, can be expanded up to about 70V.
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−株式会社内Front Page Continuation (72) Inventor Hidemi Yamada 2-2-1 Tsujido Shinmachi, Fujisawa City, Kanagawa Elna Co., Ltd.
Claims (1)
サリチ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, wherein a dimethylethylamine salt of salicylic acid is dissolved in a solvent mainly composed of γ-butyrolactone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6275597A JPH07201670A (en) | 1994-10-14 | 1994-10-14 | Electrolytic capacitor driving electrolytic solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6275597A JPH07201670A (en) | 1994-10-14 | 1994-10-14 | Electrolytic capacitor driving electrolytic solution |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2144633A Division JPH0782967B2 (en) | 1990-06-01 | 1990-06-01 | Electrolytic solution for driving electrolytic capacitors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH07201670A true JPH07201670A (en) | 1995-08-04 |
Family
ID=17557666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6275597A Pending JPH07201670A (en) | 1994-10-14 | 1994-10-14 | Electrolytic capacitor driving electrolytic solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07201670A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903994A (en) * | 2017-12-07 | 2019-06-18 | 深圳新宙邦科技股份有限公司 | A kind of high conductance electrolyte for aluminum electrolytic capacitor of high pressure |
-
1994
- 1994-10-14 JP JP6275597A patent/JPH07201670A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109903994A (en) * | 2017-12-07 | 2019-06-18 | 深圳新宙邦科技股份有限公司 | A kind of high conductance electrolyte for aluminum electrolytic capacitor of high pressure |
| CN109903994B (en) * | 2017-12-07 | 2021-05-14 | 深圳新宙邦科技股份有限公司 | Electrolyte for high-voltage high-conductivity aluminum electrolytic capacitor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |