JPS635509A - Electrolyte for capacitor - Google Patents
Electrolyte for capacitorInfo
- Publication number
- JPS635509A JPS635509A JP14869886A JP14869886A JPS635509A JP S635509 A JPS635509 A JP S635509A JP 14869886 A JP14869886 A JP 14869886A JP 14869886 A JP14869886 A JP 14869886A JP S635509 A JPS635509 A JP S635509A
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- capacitor
- quaternary phosphonium
- electrolytic solution
- solvents
- 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 description 8
- ZMZDMBWJUHKJPS-UHFFFAOYSA-N hydrogen thiocyanate Natural products SC#N ZMZDMBWJUHKJPS-UHFFFAOYSA-N 0.000 claims description 10
- 150000004714 phosphonium salts Chemical group 0.000 claims description 9
- 239000008151 electrolyte solution Substances 0.000 claims description 8
- ZMZDMBWJUHKJPS-UHFFFAOYSA-M Thiocyanate anion Chemical compound [S-]C#N ZMZDMBWJUHKJPS-UHFFFAOYSA-M 0.000 claims description 6
- 239000002904 solvent Substances 0.000 description 12
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- BBWVMXYKVQQWCK-UHFFFAOYSA-N dibutyl(dimethyl)phosphanium Chemical compound CCCC[P+](C)(C)CCCC BBWVMXYKVQQWCK-UHFFFAOYSA-N 0.000 description 2
- MVAZVRJQAZHEAE-UHFFFAOYSA-N diethyl(dipropyl)phosphanium Chemical compound CCC[P+](CC)(CC)CCC MVAZVRJQAZHEAE-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- OOWFYDWAMOKVSF-UHFFFAOYSA-N 3-methoxypropanenitrile Chemical compound COCCC#N OOWFYDWAMOKVSF-UHFFFAOYSA-N 0.000 description 1
- ZXULZCCIIYDGCE-UHFFFAOYSA-N CC[PH3]C Chemical compound CC[PH3]C ZXULZCCIIYDGCE-UHFFFAOYSA-N 0.000 description 1
- TVQBEEQDPWQLFD-UHFFFAOYSA-N CC[PH4] Chemical compound CC[PH4] TVQBEEQDPWQLFD-UHFFFAOYSA-N 0.000 description 1
- BYHZPCZRCSCPHG-UHFFFAOYSA-N C[PH3]C Chemical compound C[PH3]C BYHZPCZRCSCPHG-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 1
- SUAKHGWARZSWIH-UHFFFAOYSA-N N,N‐diethylformamide Chemical compound CCN(CC)C=O SUAKHGWARZSWIH-UHFFFAOYSA-N 0.000 description 1
- -1 N-ethelformamide Chemical compound 0.000 description 1
- PMDCZENCAXMSOU-UHFFFAOYSA-N N-ethylacetamide Chemical compound CCNC(C)=O PMDCZENCAXMSOU-UHFFFAOYSA-N 0.000 description 1
- OHLUUHNLEMFGTQ-UHFFFAOYSA-N N-methylacetamide Chemical compound CNC(C)=O OHLUUHNLEMFGTQ-UHFFFAOYSA-N 0.000 description 1
- 239000005456 alcohol based solvent Substances 0.000 description 1
- 125000002723 alicyclic group Chemical group 0.000 description 1
- 125000001931 aliphatic group Chemical group 0.000 description 1
- XCPGSFBEQZMSTL-UHFFFAOYSA-N butyl(triethyl)phosphanium Chemical compound CCCC[P+](CC)(CC)CC XCPGSFBEQZMSTL-UHFFFAOYSA-N 0.000 description 1
- YQPAAVMEUPILEE-UHFFFAOYSA-N butyl(trimethyl)phosphanium Chemical compound CCCC[P+](C)(C)C YQPAAVMEUPILEE-UHFFFAOYSA-N 0.000 description 1
- ARTHGSQAXVXICL-UHFFFAOYSA-N butyl(tripropyl)phosphanium Chemical compound CCCC[P+](CCC)(CCC)CCC ARTHGSQAXVXICL-UHFFFAOYSA-N 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- IBTMICNUANPMIH-UHFFFAOYSA-N diazanium ethane-1,2-diol hexanedioate Chemical compound C(CO)O.C(CCCCC(=O)[O-])(=O)[O-].[NH4+].[NH4+] IBTMICNUANPMIH-UHFFFAOYSA-N 0.000 description 1
- RBECNRCKEQGFRU-UHFFFAOYSA-N diethyl(dimethyl)phosphanium Chemical compound CC[P+](C)(C)CC RBECNRCKEQGFRU-UHFFFAOYSA-N 0.000 description 1
- 239000003759 ester based solvent Substances 0.000 description 1
- IQLVJVXTKNBZRC-UHFFFAOYSA-N ethyl(trimethyl)phosphanium Chemical compound CC[P+](C)(C)C IQLVJVXTKNBZRC-UHFFFAOYSA-N 0.000 description 1
- ATSROVAZOQKRJM-UHFFFAOYSA-N ethyl(tripropyl)phosphanium Chemical compound CCC[P+](CC)(CCC)CCC ATSROVAZOQKRJM-UHFFFAOYSA-N 0.000 description 1
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- AJFDBNQQDYLMJN-UHFFFAOYSA-N n,n-diethylacetamide Chemical compound CCN(CC)C(C)=O AJFDBNQQDYLMJN-UHFFFAOYSA-N 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- VBQCHPIMZGQLAZ-UHFFFAOYSA-N phosphorane Chemical group [PH5] VBQCHPIMZGQLAZ-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- BJQWBACJIAKDTJ-UHFFFAOYSA-N tetrabutylphosphanium Chemical compound CCCC[P+](CCCC)(CCCC)CCCC BJQWBACJIAKDTJ-UHFFFAOYSA-N 0.000 description 1
- SZWHXXNVLACKBV-UHFFFAOYSA-N tetraethylphosphanium Chemical compound CC[P+](CC)(CC)CC SZWHXXNVLACKBV-UHFFFAOYSA-N 0.000 description 1
- RQDVLBJYFVKECP-UHFFFAOYSA-M tetraethylphosphanium;thiocyanate Chemical compound [S-]C#N.CC[P+](CC)(CC)CC RQDVLBJYFVKECP-UHFFFAOYSA-M 0.000 description 1
- BXYHVFRRNNWPMB-UHFFFAOYSA-N tetramethylphosphanium Chemical compound C[P+](C)(C)C BXYHVFRRNNWPMB-UHFFFAOYSA-N 0.000 description 1
- XOGCTUKDUDAZKA-UHFFFAOYSA-N tetrapropylphosphanium Chemical compound CCC[P+](CCC)(CCC)CCC XOGCTUKDUDAZKA-UHFFFAOYSA-N 0.000 description 1
- HOMONHWYLOPSLL-UHFFFAOYSA-N tributyl(ethyl)phosphanium Chemical compound CCCC[P+](CC)(CCCC)CCCC HOMONHWYLOPSLL-UHFFFAOYSA-N 0.000 description 1
- XKFPGUWSSPXXMF-UHFFFAOYSA-N tributyl(methyl)phosphanium Chemical compound CCCC[P+](C)(CCCC)CCCC XKFPGUWSSPXXMF-UHFFFAOYSA-N 0.000 description 1
- WJLSOXBTGDOFOQ-UHFFFAOYSA-N tributyl(propyl)phosphanium Chemical compound CCCC[P+](CCC)(CCCC)CCCC WJLSOXBTGDOFOQ-UHFFFAOYSA-N 0.000 description 1
- TZWFFXFQARPFJN-UHFFFAOYSA-N triethyl(methyl)phosphanium Chemical compound CC[P+](C)(CC)CC TZWFFXFQARPFJN-UHFFFAOYSA-N 0.000 description 1
- PGFKTVMMTHIEKT-UHFFFAOYSA-N triethyl(propyl)phosphanium Chemical compound CCC[P+](CC)(CC)CC PGFKTVMMTHIEKT-UHFFFAOYSA-N 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
- YGDBTMJEJNVHPZ-UHFFFAOYSA-N trimethyl(propyl)phosphanium Chemical compound CCC[P+](C)(C)C YGDBTMJEJNVHPZ-UHFFFAOYSA-N 0.000 description 1
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
本発明によれば、電導度の高い優れたコンデンサ用電解
液（以下単に電解液と称することがある）が得られる。DETAILED DESCRIPTION OF THE INVENTION Industrial Field of Application According to the present invention, an excellent electrolytic solution for capacitors (hereinafter sometimes simply referred to as electrolytic solution) with high conductivity can be obtained.
従来の技術
］ンデンサの特性は種々の要因によって決定されている
が、特にコンデンサ素子とともに外装ケースに収納され
る電解液の特性は、インピーダンスあるいは等個直列抵
抗（ＥＳＲ）に大きな影響を及ぼすことが判明している
。[Prior art] The characteristics of a capacitor are determined by various factors, but in particular, the characteristics of the electrolyte that is housed in the outer case together with the capacitor element can have a large effect on impedance or equal series resistance (ESR). It's clear.
たとえば、電解コンデンサには、従来よ抄エチレングリ
コールーアジピン酸アンモニウム系の電解液が使用され
ている。For example, electrolytic capacitors have traditionally used ethylene glycol-ammonium adipate based electrolytes.
発明が解決しようとする問題点
しかし、近年のスイッチングレギュレーターの高周波化
に伴ない、更に低インピーダンスあるいは低等価直列抵
抗のコンデンサが必要となり、高電導度の電解液の開発
が望まれている。Problems to be Solved by the Invention However, as the frequency of switching regulators has increased in recent years, capacitors with lower impedance or lower equivalent series resistance are required, and the development of electrolytes with high conductivity is desired.
問題を解決するための手段
本発明者らは、電導度の高い電解液を見い出すべく鋭意
検討を行ない、チオシアン酸の四級ホスホニウム塩が高
い電導度を示すことを見い出し本発明を完成した。Means for Solving the Problem The present inventors conducted intensive studies to find an electrolytic solution with high conductivity, and completed the present invention by discovering that a quaternary phosphonium salt of thiocyanate exhibits high conductivity.
即ち、本発明はチオシアン酸の四級ホスホニウム塩を溶
質として使用することを特徴とするコンデンサ用電解液
を提供するものである。That is, the present invention provides an electrolytic solution for a capacitor characterized in that a quaternary phosphonium salt of thiocyanic acid is used as a solute.
１里９見止碓致鼠
本発明において溶質として用いられるチオシアン酸の四
級ホスホニウム塩における四級ホスホニウム塩としては
、テトラメチルホスホニウム、テトラエチルホスホニウ
ム、テトラプロピルホスホニウム、テトラブチルホスホ
ニウム、メチルトリエチルホスホニウム、メチルトリプ
αビルホスホニウム、メチルトリブチルホスホニウム、
ジメチルジエチルホスホニウム、ジエチルジプロピルホ
スホニウム、ジメチルジブチルホスホニウム、トリメチ
ルエチルホスホニウム、トリメチルプロピルホスホニウ
ム、トリメチルブチルホスホニウム、エチルトリプロピ
ルホスホニウム、エチルトリブチルホスホニウム、ジエ
チルジプロピルホスホニウム、ジメチルジブチルホスホ
ニウム、トリエチルプロピルホスホニウム、トリエチル
ブチルホスホニウム、プロピルトリブチルホスホニウム
、ジプロピルジプチルホスホニウム、トリプロピルブチ
ルホスホニウム等の脂肪族四級ホスホニウム塩および、
１．ｌ−ジメチルホスホラニウム、１−メチル−１−エ
チルホスホラニウム、１．１−シエデルホスホラニウム
、１，１−ジメチルホスホラニウム、１−メチル−１−
エチルホスホラニウム、１．１−シエテルホスホリナニ
ウム、１，１−ベンタメチレンホスホリナニウム等の脂
環式四級ホスホニウム塩を例示することができる。Examples of quaternary phosphonium salts of thiocyanate used as a solute in the present invention include tetramethylphosphonium, tetraethylphosphonium, tetrapropylphosphonium, tetrabutylphosphonium, methyltriethylphosphonium, and methyltripsylate. α-bilphosphonium, methyltributylphosphonium,
Dimethyldiethylphosphonium, diethyldipropylphosphonium, dimethyldibutylphosphonium, trimethylethylphosphonium, trimethylpropylphosphonium, trimethylbutylphosphonium, ethyltripropylphosphonium, ethyltributylphosphonium, diethyldipropylphosphonium, dimethyldibutylphosphonium, triethylpropylphosphonium, triethylbutylphosphonium , aliphatic quaternary phosphonium salts such as propyltributylphosphonium, dipropyldipylphosphonium, tripropylbutylphosphonium, and
1. l-dimethylphosphoranium, 1-methyl-1-ethylphosphoranium, 1,1-siedelphosphoranium, 1,1-dimethylphosphoranium, 1-methyl-1-
Examples include alicyclic quaternary phosphoranium salts such as ethylphosphoranium, 1,1-sietelphosphoranium, and 1,1-bentamethylenephosphorinium.
本発明のチオシアン酸の四級ホスホニウム塩を溶解させ
る溶媒としては、Ｎ−メチルホルムアミド、Ｎ−エテル
ホルムアミド、Ｎ、Ｎ−ジメチルホルムアミド、Ｎ、Ｎ
−ジエチルホルムアミド、Ｎ−メチルアセトアミド、Ｎ
−エチルアセトアミド、Ｎ、Ｎ−ジメチルアセトアミド
、Ｎ、Ｎ−ジエチルアセトアミド、Ｎ−メチルピロリジ
ノン等のアミド溶媒、ｒ−ブチロラクトン、γ−バレロ
ラクトン、δ−バレロラクトン等のラクトン溶媒、エチ
レンカーボネート、プロピレンカーボネート、ブチレン
カーボネート等のカーボネート溶媒、エチレングリコー
ル、グリセリン、メチルセロンルブ等のアルコール溶媒
、３−メトキシプロピオニトリル等のニトリル溶媒、お
よびトリメチルホスフェート等の燐酸エステル溶媒の単
独あるいは混合溶媒を例示することができる。これらの
中でもγ−ブチロラクトンを主体とする溶媒が毒性が低
く、コンデンサの封孔剤のアタックやハロゲンの混入が
少ない等の仁とから特に好ましい。Examples of solvents for dissolving the quaternary phosphonium salt of thiocyanic acid of the present invention include N-methylformamide, N-ethelformamide, N,N-dimethylformamide, N,N
-diethylformamide, N-methylacetamide, N
- Amide solvents such as ethylacetamide, N,N-dimethylacetamide, N,N-diethylacetamide, N-methylpyrrolidinone, lactone solvents such as r-butyrolactone, γ-valerolactone, δ-valerolactone, ethylene carbonate, propylene carbonate Examples include carbonate solvents such as butylene carbonate, alcohol solvents such as ethylene glycol, glycerin, and methylseronlube, nitrile solvents such as 3-methoxypropionitrile, and phosphoric acid ester solvents such as trimethyl phosphate, either alone or in combination. can. Among these, a solvent mainly composed of γ-butyrolactone is particularly preferred because of its low toxicity, low attack on capacitor sealants, and low halogen contamination.
上記溶媒に対するチオシアン酸の四級ホスホニウム塩の
溶解量は飽和濃度以下、好ましくは１〜４０重量シであ
る。The amount of the quaternary phosphonium salt of thiocyanate dissolved in the above solvent is below the saturation concentration, preferably 1 to 40 wt.
本発明の電解液は、本質的には、チオシアン酸の四級ホ
スホニウム塩と溶媒よりなるが、電蝕防止、漏れ電流の
低減等、種々の目的で少量の助溶質を添加しても差し支
えない。The electrolytic solution of the present invention essentially consists of a quaternary phosphonium salt of thiocyanate and a solvent, but a small amount of co-solute may be added for various purposes such as preventing galvanic corrosion and reducing leakage current. .
発明の効果
本発明で溶質として使用するチオシアン酸の四級ホスホ
ニウム塩は溶媒に対する溶解性が良く、その電解液は高
い電導度を示し、凝固点〜沸点範囲の広い溶媒と伴に用
いることによ抄、使用温度範囲の広いコンデンサ用電解
液となる。Effects of the Invention The quaternary phosphonium salt of thiocyanate used as a solute in the present invention has good solubility in solvents, and its electrolyte exhibits high conductivity. This is an electrolyte for capacitors that can be used over a wide temperature range.
実験例 以下に実施例を挙げて本発明を更に具体的に説明する。Experimental example The present invention will be explained in more detail with reference to Examples below.
実施例１
γ−ブチロラクトン溶媒に２０重Ｒ％のチオシアン酸の
テトラエチルホスホニウム塩を溶解して電解液を得た。Example 1 An electrolytic solution was obtained by dissolving 20% by weight of tetraethylphosphonium thiocyanate in a γ-butyrolactone solvent.
この電解液の２５℃における電導度は１５．ｓ ｍｓ／
−であった。The conductivity of this electrolyte at 25°C is 15. s ms/
-It was.
実施例２
実施例１において、ｒ−ブチロラクトン溶媒の代わりに
、Ｎ、Ｎ−ジメチルホルムアミド溶媒を使用した電解液
を作成した。この電解液の電導度はｚｘ、ｏｍｓ／譚で
あった。Example 2 In Example 1, an electrolytic solution was prepared using N,N-dimethylformamide solvent instead of r-butyrolactone solvent. The conductivity of this electrolyte was zx, oms/tan.
Claims (1)
ることを特徴とするコンデンサ用電解液。An electrolytic solution for capacitors characterized by using a quaternary phosphonium salt of thiocyanate as a solute.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14869886A JPS635509A (en) | 1986-06-25 | 1986-06-25 | Electrolyte for capacitor |
| DE8787304335T DE3768141D1 (en) | 1986-05-20 | 1987-05-15 | ELECTROLYTIC SOLUTION OF QUATERNAIAL SALTS FOR ELECTROLYTIC CAPACITOR. |
| EP87304335A EP0246825B1 (en) | 1986-05-20 | 1987-05-15 | Quaternary salt solution electrolyte for electrolytic capacitors |
| US07/050,574 US4774011A (en) | 1986-05-20 | 1987-05-18 | Electrolyte for aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14869886A JPS635509A (en) | 1986-06-25 | 1986-06-25 | Electrolyte for capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS635509A true JPS635509A (en) | 1988-01-11 |
Family
ID=15458595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14869886A Pending JPS635509A (en) | 1986-05-20 | 1986-06-25 | Electrolyte for capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS635509A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164132A (en) * | 1991-04-05 | 1992-11-17 | Air Products And Chemicals, Inc. | Process for the production of ultra-fine polymeric fibers |
-
1986
- 1986-06-25 JP JP14869886A patent/JPS635509A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5164132A (en) * | 1991-04-05 | 1992-11-17 | Air Products And Chemicals, Inc. | Process for the production of ultra-fine polymeric fibers |
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