JPS63301514A - Electrolyte for driving aluminum electrolytic capacitor - Google Patents
Electrolyte for driving aluminum electrolytic capacitorInfo
- Publication number
- JPS63301514A JPS63301514A JP13795187A JP13795187A JPS63301514A JP S63301514 A JPS63301514 A JP S63301514A JP 13795187 A JP13795187 A JP 13795187A JP 13795187 A JP13795187 A JP 13795187A JP S63301514 A JPS63301514 A JP S63301514A
- Authority
- JP
- Japan
- Prior art keywords
- salt
- acid
- electrolyte
- driving
- aluminum electrolytic
- 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
- 239000003792 electrolyte Substances 0.000 title claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 14
- 239000003990 capacitor Substances 0.000 title claims description 16
- MNUOZFHYBCRUOD-UHFFFAOYSA-N hydroxyphthalic acid Natural products OC(=O)C1=CC=CC(O)=C1C(O)=O MNUOZFHYBCRUOD-UHFFFAOYSA-N 0.000 claims abstract description 14
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 10
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 10
- UWYVPFMHMJIBHE-OWOJBTEDSA-N (e)-2-hydroxybut-2-enedioic acid Chemical compound OC(=O)\C=C(\O)C(O)=O UWYVPFMHMJIBHE-OWOJBTEDSA-N 0.000 claims abstract description 8
- 125000005210 alkyl ammonium group Chemical group 0.000 claims abstract description 8
- 239000008151 electrolyte solution Substances 0.000 claims description 15
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 6
- 239000012046 mixed solvent Substances 0.000 claims description 6
- 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 2
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical class NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 claims 2
- QEMXHQIAXOOASZ-UHFFFAOYSA-N tetramethylammonium Chemical class C[N+](C)(C)C QEMXHQIAXOOASZ-UHFFFAOYSA-N 0.000 claims 2
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical class CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims 2
- BZCOSCNPHJNQBP-UPHRSURJSA-N (z)-2,3-dihydroxybut-2-enedioic acid Chemical compound OC(=O)C(\O)=C(\O)C(O)=O BZCOSCNPHJNQBP-UPHRSURJSA-N 0.000 claims 1
- MWRVRCAFWBBXTL-UHFFFAOYSA-N 4-hydroxyphthalic acid Chemical compound OC(=O)C1=CC=C(O)C=C1C(O)=O MWRVRCAFWBBXTL-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
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 claims 1
- 239000002904 solvent Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 239000011259 mixed solution Substances 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- 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
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000001556 precipitation Methods 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
本発明はアルミニウム電解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 aluminum electrolytic capacitor (
(hereinafter referred to as electrolyte).
従来の技術
従来、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.
本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型化、高信頼化
に伴い、電解液としては比抵抗が低く広温度で安定な電
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 more reliable, there has been a demand for electrolytic solutions that have low specific resistance and are stable over a wide range of temperatures. 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、ｒ −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、ヒド
ロキシマレイン酸またはヒドロキシフタル酸のアルキル
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 provides that an alkylammonium salt of hydroxymaleic acid or hydroxyphthalic acid is dissolved in a mixed solvent consisting of r-butyrolactone and a polyhydric alcohol. It is an electrolytic solution characterized by:
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。また、低温においても溶質の析
出がなく、溶媒の粘度変化も著しく小さいため、アルミ
ニウム電解コンデンサの静電容量や損失の低温特性も著
しく向上する。Function: The electrolytic solution according to the present invention has extremely high solubility of solute and extremely low specific resistance. Furthermore, since there is no precipitation of solutes even at low temperatures and the change in viscosity of the solvent is extremely small, the low-temperature characteristics of the capacitance and loss of aluminum electrolytic capacitors are also significantly improved.
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℃および一５５℃におけ
る電解液の比抵抗値を示す。Table 1 shows the electrolyte composition and the specific resistance values of the electrolyte at temperatures of 30°C and -55°C.
第１表から明らかなように、本発明に係わる電第１表
解法は従来の電解液に比べ低い比抵抗値を有し、低温に
おいても極めて低い比抵抗値を与えている。As is clear from Table 1, the electrolyte solution method according to the present invention has a lower specific resistance value than the conventional electrolytic solution, and provides an extremely low specific resistance value even at low temperatures.
第２表は、第１表に示す電解液を用いて試作した定格１
０ＷＶ １００μＦのコンデンサの温度特性を示す。Table 2 shows the rated 1 prototype manufactured using the electrolyte shown in Table 1.
This shows the temperature characteristics of a 0WV 100μF capacitor.
第 ２ 表
第２表から電解液Ａ、Ｂ、Ｃ，Ｄ、Ｅ、Ｆ、Ｇ、Ｈ，Ｉ
、Ｊを用いた本発明品は、低温において電解液Ｋを用い
た従来品に比較して著しく特性が改善されている。Table 2 From Table 2, electrolytes A, B, C, D, E, F, G, H, I
, J has significantly improved characteristics at low temperatures compared to conventional products using electrolyte K.
第３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。Table 3 shows the results of a high-temperature load test at 105° C. in which the same capacitor as above was 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 ３ 表 第３表から判るように電解液Ａ、、Ｂ、Ｃ，，Ｄ。Table 3 As can be seen from Table 3, electrolytes A, B, C, D.
Ｅ、Ｆ、Ｇ、、Ｈ，Ｉ、Ｊを用いた本発明のコンデンサ
は高温負荷試験においても、容量変化率や損失変化が小
さり、優れた耐久性を与える。The capacitor of the present invention using E, F, G, , H, I, and J has a small capacitance change rate and a small loss change even in high-temperature load tests, and provides excellent durability.
なお、上述の混合溶媒はＴ−ブチロラクトン９５〜２０
ｗｔ％と多価アルコール５〜８０ｗｔ％であることが好
ましく、最適比は前者が８０ｗｔ％、後者が２Ｑｗｔ％
である。In addition, the above-mentioned mixed solvent is T-butyrolactone 95-20
wt% and polyhydric alcohol from 5 to 80 wt%, and the optimal ratio is 80 wt% for the former and 2Qwt% for the latter.
It is.
多価アルコール５ｗｔ％未満では高温負荷試験での特性
変化が大となり、８０ｗｔ％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 wt%, the characteristics change in a high temperature load test will be large, and if it exceeds 80 wt%, the capacity change rate and loss change at low temperature will be large.
また溶質の添加量は溶媒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 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、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、ヒドロキシマレ
イ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 solution for driving an aluminum electrolytic capacitor is characterized by dissolving an alkyl ammonium salt of hydroxymaleic acid in a mixed solvent consisting of γ-butyrolactone and a polyhydric alcohol. ,
It exhibits excellent properties over a wide temperature range and is of great industrial and practical value.
Claims (8)
混合溶媒に、ヒドロキシマレイン酸またはヒドロキシフ
タル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 hydroxymaleic acid or hydroxyphthalic acid is dissolved in a mixed solvent of γ-butyrolactone and a polyhydric alcohol.
ｗｔ％と多価アルコール５〜８０ｗｔ％からなることを
特徴とする特許請求の範囲第１項記載のアルミニウム電
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 aluminum electrolytic capacitor according to claim 1, characterized in that the electrolytic solution comprises 5 to 80 wt% of polyhydric alcohol and 5 to 80 wt% 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項記載のアルミニウム電解コンデ
ンサの駆動用電解液。(3) The electrolytic solution for driving an aluminum electrolytic capacitor according to claim 1 or 2, wherein the polyhydric alcohol consists of ethylene glycol, diethylene glycol, triethylene glycol, or tetraethylene glycol.
イン酸、ジヒドロキシマレイン酸からなることを特徴と
する特許請求の範囲第１項記載のアルミニウム電解コン
デンサの駆動用電解液。(4) The electrolytic solution for driving an aluminum electrolytic capacitor according to claim 1, wherein the hydroxymaleic acid is composed of monohydroxymaleic acid or dihydroxymaleic acid.
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項記載のアルミニウム電
解コンデンサの駆動用電解液。(5) Claim 1, wherein the alkylammonium salt of hydroxymaleic 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 the aluminum electrolytic capacitor described above.
酸、４−ヒドロキシフタル酸からなることを特徴とする
特許請求の範囲第１項記載のアルミニウム電解コンデン
サの駆動用電解液。(6) The electrolytic solution for driving an aluminum electrolytic capacitor according to claim 1, wherein the hydroxyphthalic acid consists of 3-hydroxyphthalic acid and 4-hydroxyphthalic acid.
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項記載のアルミニウム電解
コンデンサの駆動用電解液。(7) Claim 1, wherein the alkylammonium salt of hydroxyphthalic 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 the aluminum electrolytic capacitor described above.
ル酸のアルキルアンモニム塩は、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項記載のアルミニウム電解コンデンサの駆動用電解
液。(8) The electrolytic solution for driving an aluminum electrolytic capacitor according to claim 1, wherein the alkyl ammonium salt of hydroxymaleic acid or hydroxyphthalic 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 |
|---|---|---|---|
| JP13795187A JPH0722086B2 (en) | 1987-06-01 | 1987-06-01 | Electrolytic solution for driving aluminum electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13795187A JPH0722086B2 (en) | 1987-06-01 | 1987-06-01 | Electrolytic solution for driving aluminum electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63301514A true JPS63301514A (en) | 1988-12-08 |
| JPH0722086B2 JPH0722086B2 (en) | 1995-03-08 |
Family
ID=15210526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13795187A Expired - Fee Related JPH0722086B2 (en) | 1987-06-01 | 1987-06-01 | Electrolytic solution for driving aluminum electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0722086B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006049676A (en) * | 2004-08-06 | 2006-02-16 | Sanyo Chem Ind Ltd | Electrolytic solution for electrolytic capacitor and electrolytic capacitor using the same |
| CN112687470A (en) * | 2020-12-03 | 2021-04-20 | 盐城星晨科技有限公司 | Electrolyte for accelerating aging rate of aluminum electrolytic capacitor product and preparation method thereof |
-
1987
- 1987-06-01 JP JP13795187A patent/JPH0722086B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006049676A (en) * | 2004-08-06 | 2006-02-16 | Sanyo Chem Ind Ltd | Electrolytic solution for electrolytic capacitor and electrolytic capacitor using the same |
| CN112687470A (en) * | 2020-12-03 | 2021-04-20 | 盐城星晨科技有限公司 | Electrolyte for accelerating aging rate of aluminum electrolytic capacitor product and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0722086B2 (en) | 1995-03-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |