JPH07120616B2 - Electrolytic solution for driving electrolytic capacitors - Google Patents
Electrolytic solution for driving electrolytic capacitorsInfo
- Publication number
- JPH07120616B2 JPH07120616B2 JP62096574A JP9657487A JPH07120616B2 JP H07120616 B2 JPH07120616 B2 JP H07120616B2 JP 62096574 A JP62096574 A JP 62096574A JP 9657487 A JP9657487 A JP 9657487A JP H07120616 B2 JPH07120616 B2 JP H07120616B2
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic
- electrolytic solution
- driving
- hexite
- solution
- 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 - Fee Related
Links
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Primary Cells (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (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に関するものであり、詳しく言
えば、アルミ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 capacitor, and more specifically to an electrolytic solution for driving an aluminum electrolytic capacitor.
従来の技術 従来、電解コンデンサ駆動用電解液としては、エチレン
グリコールにイオノゲンを溶解した電解液が用いられて
いる。この種の電解コンデンサは低温における特性を悪
化させる。以上のような欠点を改良するため、特開昭61
−70711号公報にみられるように、γ−ブチロラクトン
を溶媒とし、フタル酸のトリエチルアミン塩を用いる例
や、特開昭54−7564号公報にみられるように、γ−ブチ
ロラクトンとエチレングリコールの混合溶媒にマレイン
酸のアミン塩を用いる例がある。2. Description of the Related Art Conventionally, as an electrolytic solution for driving an electrolytic capacitor, an electrolytic solution in which ionogen is dissolved in ethylene glycol has been used. This type of electrolytic capacitor deteriorates the characteristics at low temperatures. In order to improve the above drawbacks, JP-A-61
As disclosed in JP-A-70711, an example using γ-butyrolactone as a solvent and a triethylamine salt of phthalic acid, and, as seen in JP-A-54-7564, a mixed solvent of γ-butyrolactone and ethylene glycol. There is an example of using an amine salt of maleic acid.
また、特公昭54−39905号公報のようにエチレングリコ
ールとメチルセロソルブ又は、N,N−ジメチルホルムア
ミドの混合溶媒にアジピン酸アンモニウム，およびマン
ニット，キシリット，エリトリットの内いずれかの一種
を溶解し用いる例がある。In addition, as disclosed in Japanese Patent Publication No. 54-39905, ammonium adipate and any one of mannite, xylit, and erythritol are dissolved in a mixed solvent of ethylene glycol and methyl cellosolve or N, N-dimethylformamide. There is an example.
発明が解決しようとする問題点 しかし、従来の問題点として、γ−ブチロラクトンを溶
媒とし、フタル酸のトリエチルアミン塩を用いた場合、
また、γ−ブチロラクトンとエチレングリコールの混合
溶媒にマレイン酸のアミン塩を用いた場合は、比電導度
は十分であるが、火花電圧が低く50V級以下にしか使用
できなかった。Problems to be Solved by the Invention However, as a conventional problem, when γ-butyrolactone is used as a solvent and a triethylamine salt of phthalic acid is used,
Further, when the amine salt of maleic acid was used as the mixed solvent of γ-butyrolactone and ethylene glycol, the specific electric conductivity was sufficient, but the spark voltage was low and it could only be used in the 50V class or lower.
また、エチレングリコールとメチルセルソルブ又は、N,
N−ジメチルホルムアミドの混合溶媒にアジピン酸アン
モニウムおよびマンニット，キシリット，エリトリット
の内いずれか一種を溶解した電解液は、火花電圧は高い
が、比電導度は十分でなかった。Also, ethylene glycol and methyl cellosolve or N,
The electrolytic solution obtained by dissolving ammonium adipate and any one of mannite, xylit, and erythritol in a mixed solvent of N-dimethylformamide had a high spark voltage but a low specific electric conductivity.
本発明はこのような従来の欠点を解決するもので、火花
電圧が高く、しかも高電導度で、高温劣化の小さい電解
液を提供し、中圧級までの電解コンデンサの損失特性の
改善、並びに高温での長寿命化を図ることを目的とす
る。The present invention solves the above-mentioned conventional drawbacks, provides a high spark voltage, high electrical conductivity, and an electrolyte solution with little deterioration at high temperature, and improves the loss characteristics of an electrolytic capacitor up to an intermediate pressure class, and The purpose is to extend the service life at high temperature.
問題点を解決するための手段 上記問題点を解決するために、本発明においては、γ−
ブチロラクトンを主体とする溶媒に、マレイン酸のテト
ラメチルアンモニウム塩あるいはテトラエチルアンモニ
ウム塩を溶質とし、ヘキシットとホウ酸を添加溶解した
電解コンデンサ駆動用電解液である。Means for Solving the Problems In order to solve the above problems, in the present invention, γ-
This is an electrolytic solution for driving an electrolytic capacitor in which a tetramethylammonium salt or a tetraethylammonium salt of maleic acid is used as a solute in a solvent containing butyrolactone as a main component and hexite and boric acid are added and dissolved.
ヘキシットには、ソルビット，マンニット，イジット，
タリット，ズルシット，アリットがあるが、好ましくは
Ｄ−ソルビット,D−マンニット，ズルシットである。Hexite includes sorbit, mannite, exit,
There are tarit, dulsit, and alit, but D-sorbit, D-mannite, and dulsit are preferred.
ヘキシットとホウ酸のモル比は通常5:1〜1:5であるが、
好ましくは2.5:1〜1:3である。以上のモル比の範囲では
溶解性にすぐれている。The molar ratio of hexite to boric acid is usually 5: 1 to 1: 5,
It is preferably 2.5: 1 to 1: 3. It has excellent solubility in the above molar ratio range.
添加量は電解液重量に基づいて、ヘキシットが１〜15
％、ホウ酸が１〜15％である。これは、どちらも１％未
満では火花電圧上昇の効果が小さく、15％を越えると比
電導度が低下するからである。Hexite is added in an amount of 1 to 15 based on the weight of the electrolyte.
%, Boric acid is 1 to 15%. This is because if both are less than 1%, the effect of increasing the spark voltage is small, and if more than 15%, the specific electric conductivity decreases.
作用 γ−ブチロラクトンを主体とする溶媒に、マレイン酸の
テトラメチルアンモニウム塩あるいは、テトラエチルア
ンモニウム塩を溶質として組合わせた場合、高い電導度
が得られる。この系にヘキシットとホウ素を添加するこ
とによりあまり比電導度を下げずに火花電圧を上げるこ
とができる。Action When a solvent mainly composed of γ-butyrolactone is combined with a tetramethylammonium salt of maleic acid or a tetraethylammonium salt as a solute, a high electric conductivity is obtained. By adding hexite and boron to this system, the spark voltage can be increased without significantly reducing the specific conductivity.
また、ヘキシットとホウ酸を混合して用いるのはγ−ブ
チロラクトン主体の溶媒の場合、ヘキシット単独あるい
はホウ酸単独では溶解しにくいからである。これらを混
合することにより、溶液中でヘキシットのホウ素錯体が
でき溶解しやすくなると考えられる。Hexite and boric acid are used as a mixture because in the case of a solvent mainly composed of γ-butyrolactone, it is difficult to dissolve hexit alone or boric acid alone. It is considered that by mixing these, a hexite boron complex is formed in the solution and is easily dissolved.
実施例 以下、本発明による実施例について述べる。Examples Hereinafter, examples according to the present invention will be described.
表１に本発明の実施例及び従来の電解液組成例、並びに
常温における比電導度及び火花電圧を示す。Table 1 shows examples of the present invention and conventional electrolytic solution compositions, as well as the specific conductivity and spark voltage at room temperature.
表１に示したように、本発明電解液は従来の電解液と比
較して高い比電導度と高い火花電圧を得ることができ
る。 As shown in Table 1, the electrolytic solution of the present invention can obtain higher specific conductivity and higher spark voltage than the conventional electrolytic solutions.
表２に、表１の従来例3,実施例1,実施例4,実施例６の電
解液を用いたコンデンサの初期特性を示す。試料コンデ
ンサは100V470μＦ（φ16×32）のアルミ電解コンデン
サである。なお、従来例１および２は火花電圧が低いた
め、電圧印加時全数ショートした。Table 2 shows initial characteristics of capacitors using the electrolytic solutions of Conventional Example 3, Example 1, Example 4, and Example 6 of Table 1. The sample capacitor is a 100V 470μF (φ16 × 32) aluminum electrolytic capacitor. In addition, in the conventional examples 1 and 2, since the spark voltage was low, all of them were short-circuited when the voltage was applied.
表２から明らかなように、実施例は従来例と比較してta
nδを低くすることができる。 As is clear from Table 2, the embodiment has a ta
nδ can be lowered.
第１図〜第３図に、表２で示したアルミ電解コンデンサ
の105℃における特性経時変化を示している。第１図は
定格電圧印加における静電容量変化、第２図は定格電圧
印加における損失角の正接変化、第３図は電圧印加なし
における漏れ電流変化を示す図である。1 to 3 show the changes with time of the characteristics of the aluminum electrolytic capacitors shown in Table 2 at 105 ° C. FIG. 1 is a diagram showing a change in capacitance when a rated voltage is applied, FIG. 2 is a diagram showing a tangent change in loss angle when a rated voltage is applied, and FIG. 3 is a diagram showing a leak current change when no voltage is applied.
この第１図〜第３図から明らかなように、高温中におい
ても特性変化はきわめて小さく、信頼性の高いコンデン
サを得ることができる。As is apparent from FIGS. 1 to 3, the change in characteristics is extremely small even at high temperatures, and a highly reliable capacitor can be obtained.
発明の効果 以上のように本発明によれば、従来の電解液と比較し
て、損失特性を改善でき、しかも125℃という高温中で
もきわめて安定な信頼性の高い電解コンデンサを提供で
き、工業的価値の大なるものである。EFFECTS OF THE INVENTION As described above, according to the present invention, loss characteristics can be improved as compared with conventional electrolytic solutions, and an extremely stable and highly reliable electrolytic capacitor can be provided even at a high temperature of 125 ° C. Is a great thing.
第１図〜第３図はそれぞれ従来の電解液および本発明の
電解液を用いた定格100V470μＦ（φ16×32）のアルミ
電解コンデンサの105℃における特性経時変化を示した
ものであり、第１図は定格電圧印加における静電容量変
化、第２図は定格電圧印加における損失角の正接変化、
第３図は電圧印加なしにおける漏れ電流変化を示した特
性図である。FIGS. 1 to 3 show changes with time in characteristics at 105 ° C. of aluminum electrolytic capacitors rated at 100 V and 470 μF (φ16 × 32) using the conventional electrolytic solution and the electrolytic solution of the present invention, respectively. Is the capacitance change when the rated voltage is applied, and Fig. 2 is the loss tangent change when the rated voltage is applied.
FIG. 3 is a characteristic diagram showing a change in leakage current when no voltage is applied.
Claims (3)
マレイン酸のテトラメチルアンモニウム塩あるいはテト
ラエチルアンモニウム塩を溶質として、ヘキシットとホ
ウ酸を添加，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. A solvent containing γ-butyrolactone as a main component,
An electrolytic solution for driving an electrolytic capacitor, characterized in that a tetramethylammonium salt or a tetraethylammonium salt of maleic acid is used as a solute, and hexite and boric acid are added and dissolved.
びズルシットの内の一種または２種以上であることを特
徴とする特許請求の範囲第１項記載の電解コンデンサ駆
動用電解液。2. The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the hexite is one kind or two or more kinds of sorbit, mannite and dulcitt.
て１〜15％、ホウ酸の添加量が電解液重量に基づいて１
〜15％であることを特徴とする特許請求の範囲第２項記
載の電解コンデンサ駆動用電解液。3. The addition amount of hexite is 1 to 15% based on the weight of the electrolytic solution, and the addition amount of boric acid is 1% based on the weight of the electrolytic solution.
The electrolytic solution for driving an electrolytic capacitor according to claim 2, wherein the electrolytic solution is about 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62096574A JPH07120616B2 (en) | 1987-04-20 | 1987-04-20 | Electrolytic solution for driving electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62096574A JPH07120616B2 (en) | 1987-04-20 | 1987-04-20 | Electrolytic solution for driving electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63261823A JPS63261823A (en) | 1988-10-28 |
| JPH07120616B2 true JPH07120616B2 (en) | 1995-12-20 |
Family
ID=14168757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62096574A Expired - Fee Related JPH07120616B2 (en) | 1987-04-20 | 1987-04-20 | Electrolytic solution for driving electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07120616B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10431390B2 (en) | 2016-09-29 | 2019-10-01 | Panasonic Intellectual Property Management Co., Ltd. | Electrolytic capacitor and method for manufacturing same |
-
1987
- 1987-04-20 JP JP62096574A patent/JPH07120616B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63261823A (en) | 1988-10-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH07120616B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JPH11340097A (en) | Electrolytic solution for driving electrolytic capacitor | |
| JPH01114017A (en) | Electrolyte for driving electrolytic capacitors | |
| JP2921363B2 (en) | Electrolyte for electrolytic capacitors | |
| JPS63261824A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH07118432B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JP2819475B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JP2945699B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH01114024A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH01114028A (en) | Electrolyte for driving electrolytic capacitors | |
| JP3212322B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH01157514A (en) | Driving electrolyte of aluminum electrolytic capacitor | |
| JP2892078B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH04364015A (en) | Electrolytic capacitor driving electrolytic solution | |
| JP3347154B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPS63301514A (en) | Electrolyte for driving aluminum electrolytic capacitor | |
| JP3163151B2 (en) | Electrolytic solution for electrolytic capacitors | |
| JPH0218918A (en) | Electrolyte for driving electrolytic capacitors | |
| JPH04343409A (en) | Electrolyte for driving electrolytic capacitor | |
| JPS6263416A (en) | Electrolyte for driving aluminum electrolytic condenser | |
| JPH0636973A (en) | Electrolyte for driving electrolytic capacitor | |
| JPH0982576A (en) | Electrolyte for electrolytic capacitor | |
| JPH0754789B2 (en) | Electrolytic solution for driving aluminum electrolytic capacitors | |
| JPH0845791A (en) | Electrolyte for electrolytic capacitor | |
| JPH07192975A (en) | Electrolytic solution of electrolytic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |