JPS63250108A - Electrolyte for driving electrolytic capacitor - Google Patents
Electrolyte for driving electrolytic capacitorInfo
- Publication number
- JPS63250108A JPS63250108A JP8533487A JP8533487A JPS63250108A JP S63250108 A JPS63250108 A JP S63250108A JP 8533487 A JP8533487 A JP 8533487A JP 8533487 A JP8533487 A JP 8533487A JP S63250108 A JPS63250108 A JP S63250108A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- driving
- naphthol
- electrolyte
- derivatives
- 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
- 239000003990 capacitor Substances 0.000 title claims description 10
- 239000003792 electrolyte Substances 0.000 title claims description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 15
- 239000008151 electrolyte solution Substances 0.000 claims description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 9
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 9
- 239000000654 additive Substances 0.000 claims description 9
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims description 9
- OZJPLYNZGCXSJM-UHFFFAOYSA-N 5-valerolactone Chemical compound O=C1CCCCO1 OZJPLYNZGCXSJM-UHFFFAOYSA-N 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 claims description 6
- 230000000996 additive effect Effects 0.000 claims description 5
- 150000004780 naphthols Chemical class 0.000 claims description 5
- 150000002923 oximes Chemical class 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 150000003248 quinolines Chemical class 0.000 claims description 4
- 150000001408 amides Chemical class 0.000 claims description 3
- 229940027991 antiseptic and disinfectant quinoline derivative Drugs 0.000 claims description 3
- 235000019441 ethanol Nutrition 0.000 claims description 3
- 150000002596 lactones Chemical class 0.000 claims description 3
- 239000012046 mixed solvent Substances 0.000 claims description 3
- 239000000243 solution Substances 0.000 claims description 3
- 150000005846 sugar alcohols Polymers 0.000 claims description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims 2
- WAKHLWOJMHVUJC-SQFISAMPSA-N (2z)-2-hydroxyimino-1,2-diphenylethanol Chemical compound C=1C=CC=CC=1C(=N/O)/C(O)C1=CC=CC=C1 WAKHLWOJMHVUJC-SQFISAMPSA-N 0.000 claims 1
- JJZONEUCDUQVGR-WXUKJITCSA-N (NE)-N-[(2E)-2-hydroxyimino-1,2-diphenylethylidene]hydroxylamine Chemical compound c1ccccc1\C(=N/O)\C(=N\O)\c1ccccc1 JJZONEUCDUQVGR-WXUKJITCSA-N 0.000 claims 1
- CUNNCKOPAWXYDX-KQQUZDAGSA-N (NE)-N-[(2E)-2-hydroxyiminocyclohexylidene]hydroxylamine Chemical compound O\N=C1/CCCC/C/1=N\O CUNNCKOPAWXYDX-KQQUZDAGSA-N 0.000 claims 1
- RBOZTFPIXJBLPK-WGDLNXRISA-N (NZ)-N-[(2Z)-1,2-bis(furan-2-yl)-2-hydroxyiminoethylidene]hydroxylamine Chemical compound O\N=C(\C(=N\O)\c1ccco1)/c1ccco1 RBOZTFPIXJBLPK-WGDLNXRISA-N 0.000 claims 1
- YXAOOTNFFAQIPZ-UHFFFAOYSA-N 1-nitrosonaphthalen-2-ol Chemical compound C1=CC=CC2=C(N=O)C(O)=CC=C21 YXAOOTNFFAQIPZ-UHFFFAOYSA-N 0.000 claims 1
- SYUYTOYKQOAVDW-UHFFFAOYSA-N 2-nitrosonaphthalen-1-ol Chemical compound C1=CC=C2C(O)=C(N=O)C=CC2=C1 SYUYTOYKQOAVDW-UHFFFAOYSA-N 0.000 claims 1
- 239000005725 8-Hydroxyquinoline Substances 0.000 claims 1
- JGUQDUKBUKFFRO-CIIODKQPSA-N dimethylglyoxime Chemical compound O/N=C(/C)\C(\C)=N\O JGUQDUKBUKFFRO-CIIODKQPSA-N 0.000 claims 1
- 238000005868 electrolysis reaction Methods 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 150000004002 naphthaldehydes Chemical class 0.000 claims 1
- 229960003540 oxyquinoline Drugs 0.000 claims 1
- LOAUVZALPPNFOQ-UHFFFAOYSA-N quinaldic acid Chemical compound C1=CC=CC2=NC(C(=O)O)=CC=C21 LOAUVZALPPNFOQ-UHFFFAOYSA-N 0.000 claims 1
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical group C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims 1
- MHTSJSRDFXZFHQ-UHFFFAOYSA-N quinoline-8-thiol Chemical compound C1=CN=C2C(S)=CC=CC2=C1 MHTSJSRDFXZFHQ-UHFFFAOYSA-N 0.000 claims 1
- ORIHZIZPTZTNCU-YVMONPNESA-N salicylaldoxime Chemical compound O\N=C/C1=CC=CC=C1O ORIHZIZPTZTNCU-YVMONPNESA-N 0.000 claims 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 11
- 229910052802 copper Inorganic materials 0.000 description 11
- 239000010949 copper Substances 0.000 description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 5
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000011888 foil Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
- -1 T-butyrolactone Chemical class 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 description 1
- 239000001741 Ammonium adipate Substances 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 235000019293 ammonium adipate Nutrition 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Landscapes
- Primary Cells (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electric Double-Layer Capacitors Or The Like (AREA)
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】
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 The present invention provides a driving electrolyte for aluminum electrolytic capacitors (
(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
さ九でいる。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.
発明が解決しようとする問題点
このような有機酸のアンモニウム塩を使用している電解
液では、コンデンサを長期間放置するとアルミニウム電
極箔中に銅が含有している場合には銅が溶解し、さらに
は再析出し、この再析出が著しい場合には電極間の短絡
を起こし、コンデンサの機能が失われる現象が生じる。Problems to be Solved by the Invention In an electrolytic solution using such an ammonium salt of an organic acid, if a capacitor is left for a long period of time, if copper is contained in the aluminum electrode foil, the copper will dissolve. Further, redeposition occurs, and if this redeposition is significant, a short circuit occurs between the electrodes, resulting in a loss of capacitor function.
そのため、電極間距離を確保するため厚いセパレータを
使用することが検討されていたが、電気特性の低下や小
形化などへの障害となっていた。For this reason, the use of thick separators to ensure the distance between the electrodes has been considered, but this has resulted in deterioration of electrical characteristics and impediments to miniaturization.
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、エチレングリコ
ール、ジエチレングリコール等の多価アルコール類、メ
チルアルコール、エチルアルコール等のモノアルコール
類、ジメチルホルムアミド、モノメチルホルムアミド等
のアミド類、Ｔ−ブチロラクトン、バレロラクトン等の
ラクトン類および水のうち、一種あるいは二種以上の混
合溶媒に有機酸を溶解してなる溶液に添加剤としてオキ
シム類またはキノリン誘導体類またはナフトール誘導体
を０．０１ｗ ｔ％以上添加したことを特徴とする電解
液である。Means for Solving the Problems The present invention solves the above-mentioned problems by using polyhydric alcohols such as ethylene glycol and diethylene glycol, monoalcohols such as methyl alcohol and ethyl alcohol, and amides such as dimethylformamide and monomethylformamide. Oximes, quinoline derivatives, or naphthol derivatives are added as an additive to a solution prepared by dissolving an organic acid in one or more mixed solvents of lactones such as T-butyrolactone, valerolactone, and water. This is an electrolytic solution characterized by adding 0.01 wt% or more.
作用
上述のオキシム類、・キノリン誘導体類、ナフトール誘
導体の添加剤はアルミニウム電極箔に存在する銅の表面
に吸着し、電解液中に溶出する銅の濃度を著しく抑制す
るものである。Function: The above-mentioned additives such as oximes, quinoline derivatives, and naphthol derivatives are adsorbed on the surface of copper present in the aluminum electrode foil, and significantly suppress the concentration of copper eluted into the electrolytic solution.
実施例
以下、本発明の実施例を主溶媒のエチレングリコール７
５ｗｔ％に水１５ｗ ｔ％、アジピン酸アンモンｌＱｗ
ｔ％を配合した通常の電解液およびこの電解液に各添
加剤を０．０１ｗｔ％、Ｑ、５ｗｔ％添加した電解液に
銅片を浸漬させ、９５°Ｃ，１０００時間に溶出した銅
量を第１表に示す。Examples Below, examples of the present invention will be described using ethylene glycol as the main solvent.
5wt% water, 15wt% water, ammonium adipate 1Qw
A copper piece was immersed in a normal electrolytic solution containing t% and an electrolytic solution containing 0.01wt%, Q, and 5wt% of each additive to this electrolytic solution, and the amount of copper eluted at 95°C for 1000 hours was calculated. Shown in Table 1.
なお、銅片（９９，９％）はｌＸ４Ｘ５鶴のサイズのも
のを用い、電解液量はｌＱｍｊ２とした。In addition, the copper piece (99.9%) used was one with a size of 1×4×5 cranes, and the amount of electrolyte was set to 1Qmj2.
第 １ 表
第 ２ 表
第１表よりいずれの添加剤も銅の溶出を抑制する効果が
確認された。From Tables 1 and 2, it was confirmed that all the additives were effective in suppressing copper elution.
さらに、銅を１％含有するアルミニウム箔を陰極として
、前述の電解液を用いて１６ＷＶ ２２０μＦのコンデ
ンサを製作し、９５℃、５００時間の無負荷試験を実施
した。その結果のショート発生個数を第２表に示す。Furthermore, a 16WV 220μF capacitor was manufactured using the above-mentioned electrolyte and an aluminum foil containing 1% copper was used as a cathode, and a no-load test was conducted at 95° C. for 500 hours. The resulting number of short circuits is shown in Table 2.
第２表からも、上記の添加剤は銅の溶解、再析出による
電極間のショートを防止する効果が確認できた。From Table 2, it was confirmed that the above additives were effective in preventing short circuits between electrodes due to dissolution and redeposition of copper.
また溶媒の種類、配合比および有機酸塩の種類、濃度を
本発明の範囲内におきかえて繰り返し試験したが、いず
れの条件においても上述の添加剤の効果が確認された。Further, the test was repeated by changing the type and blending ratio of the solvent and the type and concentration of the organic acid salt within the range of the present invention, and the effect of the above-mentioned additive was confirmed under all conditions.
なお、添加剤は０．０１ｗｔ％未満では効果が十分では
なく、また飽和濃度を超える量は好ましくない。It should be noted that if the additive is less than 0.01 wt %, the effect will not be sufficient, and if the amount exceeds the saturation concentration, it is not preferable.
発明の効果
以上の結果から明らかなように、エチレングリコール、
ジエチレングリコール等の多価アルコール類、メチルア
ルコール、エチルアルコール等のモノアルコール類、ジ
メチルホルムアミド、モノメチルホルムアミド等のアミ
ド類、Ｔ−ブチロラクトン、バレロラクトン等のラクト
ン類および水のうち、一種あるいは二種以上の混合溶媒
に有機酸を溶解してなる溶液に添加剤としてオキシム類
またはキノリンＨｆ’ｒ ４体類またはナフトール誘導
体を０．ＯＩＷ ｔ％以上添加したことを特徴とする電
解液は、電解コンデンサのアルミニウム電極箔中に銅が
含有している場合においても、電気特性の低下、小形化
への障害となること無しに、電極間の短絡、ショートを
防止でき、工業的ならびに実用的価値の大なるものであ
る。As is clear from the results beyond the effects of the invention, ethylene glycol,
One or more of polyhydric alcohols such as diethylene glycol, monoalcohols such as methyl alcohol and ethyl alcohol, amides such as dimethylformamide and monomethylformamide, lactones such as T-butyrolactone and valerolactone, and water. Oximes, quinoline Hf'r tetramers, or naphthol derivatives are added as additives to a solution prepared by dissolving an organic acid in a mixed solvent. An electrolytic solution containing t% or more of OIW can be used without deteriorating electrical characteristics or hindering miniaturization, even when copper is contained in the aluminum electrode foil of an electrolytic capacitor. It is of great industrial and practical value as it can prevent short circuits between the two.
Claims (4)
多価アルコール類、メチルアルコール、エチルアルコー
ル等のモノアルコール類、ジメチルホルムアミド、モノ
メチルホルムアミド等のアミド類、γ−ブチロラクトン
、バレロラクトン等のラクトン類および水のうち、一種
あるいは二種以上の混合溶媒に有機酸を溶解してなる溶
液に添加剤としてオキシム類またはキノリン誘導体類ま
たはナフトール誘導体を０．０１ｗｔ％以上、添加した
ことを特徴とする電解コンデンサの駆動用電解液。(1) Among polyhydric alcohols such as ethylene glycol and diethylene glycol, monoalcohols such as methyl alcohol and ethyl alcohol, amides such as dimethylformamide and monomethylformamide, lactones such as γ-butyrolactone and valerolactone, and water, An electrolysis for driving an electrolytic capacitor, characterized in that 0.01 wt% or more of oximes, quinoline derivatives, or naphthol derivatives are added as an additive to a solution prepared by dissolving an organic acid in one or more mixed solvents. liquid.
リルジオキシム、α−ベンジルジオキシム、シクロヘキ
サンジオンジオキシム、α−ベンゾインオキシム、サリ
チルアルドキシム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) Claim 1, wherein the oximes include dimethylglyoxime, α-furyldioxime, α-benzyldioxime, cyclohexanedionedioxime, α-benzoinoxime, and salicylaldoxime. Electrolyte for driving the electrolytic capacitor described.
８−メルカプトキノリン、２−キノリンカルボン酸から
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。(3) The above quinoline derivative is 8-hydroxyquinoline,
The electrolytic solution for driving an electrolytic capacitor according to claim 1, characterized in that it consists of 8-mercaptoquinoline and 2-quinolinecarboxylic acid.
トール、β−ニトロソ−ナフトール、２−オキシ−１−
ナフトアルデヒド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 above naphthol derivatives are α-nitroso-β-naphthol, β-nitroso-naphthol, 2-oxy-1-
The electrolytic solution for driving an electrolytic capacitor according to claim 1, characterized in that it is made of naphthaldehyde.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8533487A JPS63250108A (en) | 1987-04-07 | 1987-04-07 | Electrolyte for driving electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8533487A JPS63250108A (en) | 1987-04-07 | 1987-04-07 | Electrolyte for driving electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63250108A true JPS63250108A (en) | 1988-10-18 |
Family
ID=13855741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8533487A Pending JPS63250108A (en) | 1987-04-07 | 1987-04-07 | Electrolyte for driving electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63250108A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000173868A (en) * | 1998-12-01 | 2000-06-23 | Nichicon Corp | Electrolytic solution for driving aluminum electrolytic |
| EP1437749A4 (en) * | 2001-09-26 | 2008-06-25 | Rubycon Corp | Electrolyte solution for driving electrolytic capacitor and electrolytic capacitor |
| JP2009117081A (en) * | 2007-11-02 | 2009-05-28 | Asahi Kasei Chemicals Corp | Electrolyte solution for lithium-ion secondary battery and lithium-ion secondary battery |
| JP2016026402A (en) * | 2010-02-15 | 2016-02-12 | パナソニックＩｐマネジメント株式会社 | Electrolytic capacitor manufacturing method and electrolytic capacitor |
-
1987
- 1987-04-07 JP JP8533487A patent/JPS63250108A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000173868A (en) * | 1998-12-01 | 2000-06-23 | Nichicon Corp | Electrolytic solution for driving aluminum electrolytic |
| EP1437749A4 (en) * | 2001-09-26 | 2008-06-25 | Rubycon Corp | Electrolyte solution for driving electrolytic capacitor and electrolytic capacitor |
| US7539006B2 (en) | 2001-09-26 | 2009-05-26 | Rubycon Corporation | Electrolytic solution for driving electrolytic capacitor and electrolytic capacitor |
| JP2009117081A (en) * | 2007-11-02 | 2009-05-28 | Asahi Kasei Chemicals Corp | Electrolyte solution for lithium-ion secondary battery and lithium-ion secondary battery |
| JP2016026402A (en) * | 2010-02-15 | 2016-02-12 | パナソニックＩｐマネジメント株式会社 | Electrolytic capacitor manufacturing method and electrolytic capacitor |
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