JPH01119011A - Electrolytic solution for driving electrolytic capacitor - Google Patents
Electrolytic solution for driving electrolytic capacitorInfo
- Publication number
- JPH01119011A JPH01119011A JP62276980A JP27698087A JPH01119011A JP H01119011 A JPH01119011 A JP H01119011A JP 62276980 A JP62276980 A JP 62276980A JP 27698087 A JP27698087 A JP 27698087A JP H01119011 A JPH01119011 A JP H01119011A
- Authority
- JP
- Japan
- Prior art keywords
- polyhydric alcohol
- driving
- electrolytic
- electrolytic solution
- cyclopropanedicarboxylic acid
- 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
- 239000008151 electrolyte solution Substances 0.000 title claims description 16
- 239000003990 capacitor Substances 0.000 title claims description 12
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 14
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 12
- FDKLLWKMYAMLIF-UHFFFAOYSA-N cyclopropane-1,1-dicarboxylic acid Chemical compound OC(=O)C1(C(O)=O)CC1 FDKLLWKMYAMLIF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000012046 mixed solvent Substances 0.000 claims abstract description 9
- 125000005210 alkyl ammonium group Chemical group 0.000 claims abstract description 7
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000003792 electrolyte Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical class CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 claims 1
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical class NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims 1
- RLWFMZKPPHHHCB-UHFFFAOYSA-N cyclopropane-1,2-dicarboxylate;hydron Chemical compound OC(=O)C1CC1C(O)=O RLWFMZKPPHHHCB-UHFFFAOYSA-N 0.000 claims 1
- 229920001223 polyethylene glycol Polymers 0.000 claims 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N tetraethylene glycol Chemical compound OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 claims 1
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical class C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 claims 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical class CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims 1
- 239000002904 solvent Substances 0.000 abstract description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、電ｍコンデンサの駆動用電解液（以下電解液
という）に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an electrolytic solution for driving an electric capacitor (hereinafter referred to as an electrolytic solution).
従来の技術
従来、電解コンデンサの電解液としてはエチレングリコ
ールを主体とした溶媒にアジピン酸またはその塩を溶解
した電解液が多用されている。2. Description of the Related Art Conventionally, an electrolytic solution in which adipic acid or a salt thereof is dissolved in a solvent mainly composed of ethylene glycol has been frequently used as an electrolytic solution for electrolytic capacitors.
発明が解決しようとする問題点
近年、アルミニウム電解コンデンサの小形化、高倍転化
に伴い、電解液としては比抵抗が低く高温度で安定な電
解液が要求されている。比抵抗を低くするために、従来
電解液中の水分の配合比を増大したり、あるいは溶質量
を増大したものがあるが、水の配合比を増大すると高温
度雰囲気下における信頼性が著しく低下する。また、溶
質量を増大させると静電容量や損失の低温特性が悪化す
るなどの問題があった。Problems to be Solved by the Invention In recent years, as aluminum electrolytic capacitors have become smaller and have higher conversion rates, electrolytic solutions that have low specific resistance and are stable at high temperatures have been required. Conventionally, in order to lower the resistivity, the water content in the electrolyte has been increased or the amount of solute has been increased, but increasing the water content significantly reduces reliability in high-temperature environments. do. In addition, when the amount of solute is increased, there are problems such as deterioration of low-temperature characteristics of capacitance and loss.
問題点を解決するための手段
本発明は、上述の問題点を解決するため、γ−ブチロラ
クトンと多価アルコールとからなる混合溶媒に、シクロ
プロパンジカルボン酸のアルキルアンモニウム塩を溶解
したことを特徴とする電解液である。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention is characterized in that an alkyl ammonium salt of cyclopropanedicarboxylic acid is dissolved in a mixed solvent consisting of γ-butyrolactone and a polyhydric alcohol. It is an electrolyte solution.
作用
本発明に係わる電解液は溶質の溶解度が著しく高く、比
抵抗が極めて低くなる。Function: The electrolytic solution according to the present invention has extremely high solubility of solute and extremely low specific resistance.
実施例 以下、本発明の実施例について説明する。Example Examples of the present invention will be described below.
第１表は、電解液組成と温度３０℃における電解液の比
抵抗値を示す。Table 1 shows the electrolytic solution composition and the specific resistance value of the electrolytic solution at a temperature of 30°C.
第１表
第２表は、第１表に示す電解液で、上述と同じコンデン
サを試作し、１０５℃で定格電圧印加の高温負荷試験を
行った結果を示す。漏れ電流は定格電圧印加１分後の値
を示す。各々の特性値は試料数２０個の平均値である。Tables 1 and 2 show the results of a high-temperature load test at 105° C. in which the same capacitors as above were fabricated using the electrolyte shown in Table 1 and the rated voltage was applied. Leakage current indicates the value 1 minute after the rated voltage is applied. Each characteristic value is an average value of 20 samples.
第 ２ 表
第２表から判るように、本発明に係る電解液Ａ、Ｂ、Ｃ
，Ｄ、Ｅを用いたコンデンサは高温負荷試験においても
、容量変化率や損失変化が小さ（、優れた耐久性を与え
る。Table 2 As can be seen from Table 2, electrolytes A, B, and C according to the present invention
, D, and E have small capacitance change rate and loss change (and provide excellent durability) even in high-temperature load tests.
なお、上述の混合溶媒はγ−ブチロラクトン９５〜２０
重量％と多価アルコール５〜８０重量％であることが好
ましく、最適比は前者が８０重量％、後者が２０重量％
である。In addition, the above-mentioned mixed solvent contains γ-butyrolactone 95 to 20
It is preferable that the proportion of polyhydric alcohol is 5 to 80% by weight, and the optimum ratio is 80% by weight for the former and 20% by weight for the latter.
It is.
多価アルコール５重量％未満では高温負荷試験での特性
変化が大となり、８０重量％を超えると低温での容量変
化率や損失変化が大きくなる。If the polyhydric alcohol content is less than 5% by weight, the characteristics change in a high temperature load test will be large, and if it exceeds 80% by weight, the capacity change rate and loss change at low temperatures will be large.
また溶質の添加量は混合溶媒１００ｇに対し５ｇ以上が
好ましく、５ｇ未満では比抵抗を十分に低下させること
ができない。なお、添加量が飽和濃度を超えることは好
ましくない。Further, the amount of solute added is preferably 5 g or more per 100 g of the mixed solvent, and if it is less than 5 g, the specific resistance cannot be sufficiently lowered. Note that it is not preferable that the amount added exceeds the saturation concentration.
発明の効果
以上の結果から明らかなように、Ｔ−ブチロラクトンと
多価アルコールとからなる混合溶媒に、シクロプロパン
ジカルボン酸のアルキルアンモニウム塩を溶解したこと
を特徴とする電解液を用いた電解コンデンサは、広温度
範囲で優れた特性を示し、工業的ならびに実用的価値の
大なるものである。Effects of the Invention As is clear from the above results, an electrolytic capacitor using an electrolyte characterized by dissolving an alkyl ammonium salt of cyclopropanedicarboxylic acid in a mixed solvent consisting of T-butyrolactone and a polyhydric alcohol is It shows excellent properties over a wide temperature range and is of great industrial and practical value.
Claims (6)
混合溶媒に、シクロプロパンジカルボン酸のアルキルア
ンモニウム塩を溶解したことを特徴とするアルミニウム
電解コンデンサの駆動用電解液。(1) An electrolytic solution for driving an aluminum electrolytic capacitor, characterized in that an alkylammonium salt of cyclopropanedicarboxylic acid is dissolved in a mixed solvent consisting of γ-butyrolactone and a polyhydric alcohol.
重量％と多価アルコール５〜８０重量％からなることを
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
の駆動用電解液。(2) The above mixed solvent is γ-butyrolactone 95-20
The electrolytic solution for driving an electrolytic capacitor according to claim 1, characterized in that the electrolytic solution is comprised of 5% to 80% by weight of polyhydric alcohol and 5 to 80% by weight of polyhydric alcohol.
チレングリコール、トリエチレングリコール、テトラエ
チレングリコールからなることを特徴とする特許請求の
範囲第１項または第２項記載の電解コンデンサの駆動用
電解液。(3) The electrolytic solution for driving an electrolytic capacitor according to claim 1 or 2, wherein the polyhydric alcohol is composed of ethylene glycol, diethylene glycol, triethylene glycol, or tetraethylene glycol.
ロプロパンジカルボン酸または１、２−シクロプロパン
ジカルボン酸からな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の駆動用電解液。(4) The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the cyclopropanedicarboxylic acid consists of 1,1-cyclopropanedicarboxylic acid or 1,2-cyclopropanedicarboxylic acid.
モニウム塩がモノメチルアンモニウム塩、ジメチルアン
モニウム塩、トリメチルアンモニウム塩、テトラメチル
アンモニウム塩の一種または二種以上の組合せからなる
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
デンサの駆動用電解液。(5) Claim 1, characterized in that the alkylammonium salt of cyclopropanedicarboxylic acid is comprised of one or a combination of two or more of monomethylammonium salt, dimethylammonium salt, trimethylammonium salt, and tetramethylammonium salt. Electrolyte for driving electrolytic capacitors as described in Section 1.
モニウム塩は、混合溶媒１００ｇに対し、５ｇ以上存在
することを特徴とする特許請求の範囲第１項記載の電解
コンデンサの駆動用電解液。(6) The electrolytic solution for driving an electrolytic capacitor according to claim 1, wherein the alkyl ammonium salt of cyclopropanedicarboxylic acid is present in an amount of 5 g or more per 100 g of the mixed solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62276980A JPH01119011A (en) | 1987-10-30 | 1987-10-30 | Electrolytic solution for driving electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62276980A JPH01119011A (en) | 1987-10-30 | 1987-10-30 | Electrolytic solution for driving electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01119011A true JPH01119011A (en) | 1989-05-11 |
Family
ID=17577090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62276980A Pending JPH01119011A (en) | 1987-10-30 | 1987-10-30 | Electrolytic solution for driving electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119011A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8187763B2 (en) | 2003-07-11 | 2012-05-29 | Honda Motor Co., Ltd. | Cooling liquid composition for fuel cell |
-
1987
- 1987-10-30 JP JP62276980A patent/JPH01119011A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8187763B2 (en) | 2003-07-11 | 2012-05-29 | Honda Motor Co., Ltd. | Cooling liquid composition for fuel cell |
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