JPS6240715A - Electrolytic liquid for electrolytic capacitor - Google Patents
Electrolytic liquid for electrolytic capacitorInfo
- Publication number
- JPS6240715A JPS6240715A JP60180045A JP18004585A JPS6240715A JP S6240715 A JPS6240715 A JP S6240715A JP 60180045 A JP60180045 A JP 60180045A JP 18004585 A JP18004585 A JP 18004585A JP S6240715 A JPS6240715 A JP S6240715A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- aprotic solvent
- electrolytic solution
- formula
- compound
- 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
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】
（産業上の利用分野〕
本発明は、非プロトン溶媒中に窒素複素２縮合環化合物
のテトラフルオロホウ酸塩を電解質として含む電解コン
デンサ用電解液に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to an electrolytic solution for an electrolytic capacitor containing a tetrafluoroborate of a nitrogen hetero-condensed ring compound as an electrolyte in an aprotic solvent.
従来、電解コンデンサ用電解液とて有機酸又はその塩・
グリコール系ペーストが通常の用途に対し主流をなして
使用されるが、近年の電子機器の利用範囲の増大からコ
ンデンサ性能の向上改善の要求が高まり、ペースト中の
水の存在が大きな問題となり、非プロトン溶媒を使用す
ることにより有機酸又はその塩・グリコールペーストに
代わる電解液が注目されるに至っている。Conventionally, electrolytes for electrolytic capacitors have been made using organic acids or their salts.
Glycol-based pastes are mainly used for normal applications, but as the scope of use of electronic devices has increased in recent years, demands for improving capacitor performance have increased, and the presence of water in the paste has become a major problem, making it difficult to Electrolytic solutions that use proton solvents to replace organic acids or their salts/glycol pastes have been attracting attention.
しかし、非プロトン溶媒系電解液の最も大きな問題は、
いかにして高電導度の電解液を得るかにあり、この目的
達成のためには、これら非プロトン溶媒に良く熔解し、
かつ解離度の高い有機カルボン酸若しくはその塩の検索
が主体をなしているが、まだその目的を達し得ず、やむ
を得ず依然としてアルコール類、グリコール類などの酸
と反応して水を生成する溶媒、更には水を非プロトン溶
媒に配合して高電導度を得ようとしているが、十分に高
電導化できない、含水量の増加、電解質の増加で高温で
の安定性が欠如する欠点を免れないのが現状である。However, the biggest problem with aprotic solvent electrolytes is that
The problem is how to obtain an electrolytic solution with high conductivity, and in order to achieve this goal, it is necessary to dissolve well in these aprotic solvents,
The search for highly dissociated organic carboxylic acids or their salts has been the main focus, but this goal has not yet been achieved, and it is unavoidable that solvents that react with acids such as alcohols and glycols to produce water, and attempts to obtain high conductivity by blending water with an aprotic solvent, but the drawbacks are that the conductivity cannot be made sufficiently high, and that the increase in water content and electrolyte results in a lack of stability at high temperatures. This is the current situation.
それ故、本発明の目的は、非プロトン溶媒を使用し実質
的に非水系の高電導度の電解液を提供するにある。Therefore, it is an object of the present invention to provide a substantially non-aqueous highly conductive electrolyte using an aprotic solvent.
本発明者等は、非プロトン溶媒を使用しかつアルコール
類、グリコール類などの酸と反応して水を生成する溶媒
を使用することなく、実質的に非水系の電解液でかつ高
電導度を与える電解質につき鋭意研究を重ねた結果、テ
トラフルオロホウ酸（ＨＢＦ４）の窒素複素２縮合理化
合物塩が非プロトン溶媒に熔解性が高く、かつ解離度も
高く高電導度を付与することを見出し本発明に到達した
ものである。The present inventors have developed a substantially non-aqueous electrolytic solution with high conductivity by using an aprotic solvent and without using a solvent that reacts with acids such as alcohols and glycols to produce water. As a result of intensive research on the electrolyte to be applied, we discovered that the nitrogen hetero-condensation compound salt of tetrafluoroboric acid (HBF4) has high solubility in aprotic solvents, has a high degree of dissociation, and imparts high conductivity. This invention has been achieved.
すなわち、本発明に係る電解コンデンサ用電解液は、非
プロトン溶媒中に一般式
（式中ｍ−０又はｌ、ｍ＋ｎ＝２又は３．Ｒ，＝炭素原
子数１〜３のアルキル置換基が存在又は不存在、Ｒ＝Ｈ
又は炭素原子数１〜５のアルキル基の１又は２個により
窒素原子は３級又は４級アミンを構成する窒素複素２縮
合理化合物で環中に相互に共役の２重粘合Ｏ〜５個含有
する化合物）のテトラフルオロホウ酸塩を電解質として
含むことを特徴とする。That is, the electrolytic solution for an electrolytic capacitor according to the present invention has a general formula (where m-0 or l, m+n=2 or 3.R, = an alkyl substituent having 1 to 3 carbon atoms exists) in an aprotic solvent. or absent, R=H
Or a nitrogen hetero2 condensed compound in which one or two alkyl groups having 1 to 5 carbon atoms constitute a tertiary or quaternary amine, with O to 5 mutually conjugated double viscous atoms in the ring. It is characterized by containing tetrafluoroborate of the compound (containing compound) as an electrolyte.
本発明の対象となる窒素複素２縮合環化合物としては、
キノリン、２−メチルキノリン（キナルジン）、イソキ
ノリン及びこれらの部分水素化物又は完全水素化物、及
び以上の化合物類につきＮ−アルキル化物類；インドー
ル、３−メチルインドール（スカトール）、イソインド
ール、プソイドインドール、及びこれらの部分水素化物
又は完全水素化物、及び以上の化合物類につきＮ−アル
キル化物類が挙げられる。The nitrogen hetero two condensed ring compounds that are the object of the present invention include:
Quinoline, 2-methylquinoline (quinaldine), isoquinoline and their partially or completely hydrogenated products, and N-alkylated products of the above compounds; indole, 3-methylindole (skatole), isoindole, pseudoindole , their partially or completely hydrides, and N-alkylated products of the above compounds.
使用される非プロトン溶媒としては、
（１）アミド系溶媒
Ｎ−メチルホルムアミド、Ｎ−ジメチルホルムアミド、
Ｎ−エチルホルムアミド、Ｎ−ジエチルホルムアミド、
Ｎ−メチルアセトアミド、Ｎ−ジメチルアセトアミド、
Ｎ−エチルアセトアミド、Ｎ−ジエチルアセトアミド。The aprotic solvents used include (1) amide solvents N-methylformamide, N-dimethylformamide,
N-ethylformamide, N-diethylformamide,
N-methylacetamide, N-dimethylacetamide,
N-ethylacetamide, N-diethylacetamide.
ヘキサメチルホスホリンアミド。Hexamethylphosphorinamide.
（２）オキシド系
ジメチルスルホキシド
（３） ニトリル系
アセトニトリル
（４）環状エステル、アミド系
γ−ブチロラクトン、Ｎ−メチル−２−ピロリドンエチ
レンカーボネート プロピレンカーボネート
などが代表として挙げられるが、これに限定されるもの
でない。(2) Oxide-based dimethyl sulfoxide (3) Nitrile-based acetonitrile (4) Cyclic esters, amide-based γ-butyrolactone, N-methyl-2-pyrrolidone ethylene carbonate, propylene carbonate, etc. are representative examples, but they are not limited to these. Not.
本発明に係る電解コンデンサ用電解液は、一般的に５、
テトラフルオロホウ酸の水溶液に所望の窒素複素２縮金
環化合物類の当量を添加反応後減圧乾燥して無水塩を得
、これを所望の非プロトン溶媒の約１０重量％溶液とし
て容易に調製できる。The electrolytic solution for an electrolytic capacitor according to the present invention generally includes 5:
An equivalent amount of the desired nitrogen hetero-condensed ring compound is added to an aqueous solution of tetrafluoroboric acid, followed by drying under reduced pressure to obtain an anhydrous salt, which can be easily prepared as a solution of about 10% by weight in a desired aprotic solvent.
以下、本発明に係る電解コンデンサ用電解液の実施例に
つき、各種窒素複素２縮合環化合物テトラフルオロホウ
酸塩の各種非プロトン溶媒に対する１０重量％溶液の電
導度を第１表に示す。尚比較例として従来の標準的電解
液（エチレングリコール７８重量％、水１２％、アシヒ
ン酸アンモニウム１０％）を示しである。Table 1 below shows the conductivities of 10% by weight solutions of various nitrogen hetero-condensed ring compound tetrafluoroborate salts in various aprotic solvents for examples of the electrolytic solution for electrolytic capacitors according to the present invention. As a comparative example, a conventional standard electrolytic solution (78% by weight of ethylene glycol, 12% of water, 10% of ammonium acyphate) is shown.
」」
次に、実施例１乃至１２及び参考例の電解液
゛につき５０Ｖ２２μＦでのライフ特性を第２表
″に示す。"" Next, the electrolytes of Examples 1 to 12 and reference examples
Table 2 shows the life characteristics at 50V22μF per
”.
二
二
二
］［
表２
〔発明の効果〕
本発明に係る電解液によると、従来のグリコール類、水
、有機酸塩よりなる高電導度に匹敵若しくはそれ以上の
高電導度を有する非水系電解液が提供可能とされ、電解
コンデンサの設計分野に新しく広範囲な性能の選択手段
を提供できる。[222] [Table 2 [Effects of the Invention] According to the electrolytic solution according to the present invention, a non-aqueous electrolyte having a high conductivity comparable to or higher than that of conventional glycols, water, and organic acid salts can be obtained. The present invention provides a new and broader range of performance options for the field of electrolytic capacitor design.
Claims (2)
子数１〜３のアルキル置換基が存在又は不存在、Ｒ＝Ｈ
又は炭素原子数１〜５のアルキル基の１又は２個により
窒素原子は３級又は４級アミンを構成する窒素複素２縮
合環化合物で環中に相互に共役の２重結合０〜５個含有
する化合物のテトラフルオロホウ酸塩を電解質として含
む電解コンデンサ用電解液。(1) General formula ▲ Numerical formula, chemical formula, table, etc. in the aprotic solvent ▼ In the formula, m = 0 or l, m + n = 2 or 3, R_1 = presence or absence of an alkyl substituent having 1 to 3 carbon atoms. Existence, R=H
or a nitrogen hetero-2 condensed ring compound in which one or two alkyl groups having 1 to 5 carbon atoms constitute a tertiary or quaternary amine, containing 0 to 5 mutually conjugated double bonds in the ring; An electrolytic solution for electrolytic capacitors that contains tetrafluoroborate, a compound that acts as an electrolyte.
ジメチルホルムアミド、Ｎ−エチルホルムアミド、Ｎ−
ジエチルホルムアミド、Ｎ−メチルアセトアミド、Ｎ−
ジメチルアセトアミド、Ｎ−エチルアセトアミド、Ｎ−
ジエチルアセトアミド、Ｔ−ブチロラクトン、Ｎ−メチ
ル−２−ピロリドン、エチレンカーボネート、プロピレ
ンカーボネート、ジメチルスルホオキシド、アセトニト
リル又はこれらの混合物の群より選択される特許請求の
範囲第１項記載の電解コンデンサ用電解液。(2) The aprotic solvent is N-methylformamide, N-
Dimethylformamide, N-ethylformamide, N-
diethylformamide, N-methylacetamide, N-
Dimethylacetamide, N-ethylacetamide, N-
The electrolytic solution for an electrolytic capacitor according to claim 1, which is selected from the group of diethylacetamide, T-butyrolactone, N-methyl-2-pyrrolidone, ethylene carbonate, propylene carbonate, dimethyl sulfoxide, acetonitrile, or a mixture thereof. .
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60180045A JPS6240715A (en) | 1985-08-17 | 1985-08-17 | Electrolytic liquid for electrolytic capacitor |
| US06/886,987 US4664830A (en) | 1985-07-17 | 1986-07-16 | Electrolyte for electrolytic capacitor |
| EP86305476A EP0209376B1 (en) | 1985-07-17 | 1986-07-16 | An electrolyte for electrolytic capacitor |
| DE8686305476T DE3686914T2 (en) | 1985-07-17 | 1986-07-16 | ELECTROLYT FOR ELECTROLYT CAPACITOR. |
| CA000514064A CA1272016A (en) | 1985-07-17 | 1986-07-17 | Electrolyte for electrolytic capacitor |
| KR1019860005841A KR940004942B1 (en) | 1985-07-17 | 1986-07-18 | Electrolyte for electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60180045A JPS6240715A (en) | 1985-08-17 | 1985-08-17 | Electrolytic liquid for electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6240715A true JPS6240715A (en) | 1987-02-21 |
| JPH033370B2 JPH033370B2 (en) | 1991-01-18 |
Family
ID=16076520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60180045A Granted JPS6240715A (en) | 1985-07-17 | 1985-08-17 | Electrolytic liquid for electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6240715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965082B2 (en) | 2002-06-21 | 2005-11-15 | Carl Freudenberg Kg | Flexible flat cable |
-
1985
- 1985-08-17 JP JP60180045A patent/JPS6240715A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6965082B2 (en) | 2002-06-21 | 2005-11-15 | Carl Freudenberg Kg | Flexible flat cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH033370B2 (en) | 1991-01-18 |
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