JPH0225013A - Electrolyte for electrolytic capacitor - Google Patents
Electrolyte for electrolytic capacitorInfo
- Publication number
- JPH0225013A JPH0225013A JP17449988A JP17449988A JPH0225013A JP H0225013 A JPH0225013 A JP H0225013A JP 17449988 A JP17449988 A JP 17449988A JP 17449988 A JP17449988 A JP 17449988A JP H0225013 A JPH0225013 A JP H0225013A
- Authority
- JP
- Japan
- Prior art keywords
- conductivity
- electrolytic capacitor
- ammonium salt
- electrolyte
- solute
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 23
- 239000003792 electrolyte Substances 0.000 title abstract description 9
- -1 heterocyclic quaternary ammonium salt Chemical class 0.000 claims abstract description 14
- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 claims abstract description 10
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000008151 electrolyte solution Substances 0.000 claims description 18
- GARJMFRQLMUUDD-UHFFFAOYSA-N 1,1-dimethylpyrrolidin-1-ium Chemical group C[N+]1(C)CCCC1 GARJMFRQLMUUDD-UHFFFAOYSA-N 0.000 claims description 3
- MFQQHFRKVCFEBQ-UHFFFAOYSA-N 1-methyl-1-azoniabicyclo[2.2.2]octane Chemical compound C1CC2CC[N+]1(C)CC2 MFQQHFRKVCFEBQ-UHFFFAOYSA-N 0.000 claims description 3
- PQBAWAQIRZIWIV-UHFFFAOYSA-N N-methylpyridinium Chemical compound C[N+]1=CC=CC=C1 PQBAWAQIRZIWIV-UHFFFAOYSA-N 0.000 claims description 3
- OGLIVJFAKNJZRE-UHFFFAOYSA-N 1-methyl-1-propylpiperidin-1-ium Chemical compound CCC[N+]1(C)CCCCC1 OGLIVJFAKNJZRE-UHFFFAOYSA-N 0.000 claims description 2
- SRNYBWIINIZODS-UHFFFAOYSA-N 4,4-diethylmorpholin-4-ium Chemical compound CC[N+]1(CC)CCOCC1 SRNYBWIINIZODS-UHFFFAOYSA-N 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 abstract description 6
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 abstract description 4
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 150000003863 ammonium salts Chemical class 0.000 abstract 2
- 230000008021 deposition Effects 0.000 abstract 1
- 125000000623 heterocyclic group Chemical group 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 14
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 9
- 239000002904 solvent Substances 0.000 description 8
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 4
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 4
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 description 3
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 2
- ZHNUHDYFZUAESO-UHFFFAOYSA-N Formamide Chemical compound NC=O ZHNUHDYFZUAESO-UHFFFAOYSA-N 0.000 description 2
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- DVMCUMRTRNTLPH-UHFFFAOYSA-N 1-ethyl-2,4,6-trimethylpyridin-1-ium Chemical compound CC[N+]1=C(C)C=C(C)C=C1C DVMCUMRTRNTLPH-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- ZNQVEEAIQZEUHB-UHFFFAOYSA-N 2-ethoxyethanol Chemical compound CCOCCO ZNQVEEAIQZEUHB-UHFFFAOYSA-N 0.000 description 1
- MPCMNCUFYRHEON-UHFFFAOYSA-L 2-methylidenebutanedioate;tetramethylazanium Chemical compound C[N+](C)(C)C.C[N+](C)(C)C.[O-]C(=O)CC(=C)C([O-])=O MPCMNCUFYRHEON-UHFFFAOYSA-L 0.000 description 1
- VAJZCFLYJRMBFN-UHFFFAOYSA-N 4,4-dimethylmorpholin-4-ium Chemical compound C[N+]1(C)CCOCC1 VAJZCFLYJRMBFN-UHFFFAOYSA-N 0.000 description 1
- 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
- 101100027969 Caenorhabditis elegans old-1 gene Proteins 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
- OHLUUHNLEMFGTQ-UHFFFAOYSA-N N-methylacetamide Chemical compound CNC(C)=O OHLUUHNLEMFGTQ-UHFFFAOYSA-N 0.000 description 1
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 1
- 244000046052 Phaseolus vulgaris Species 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 125000005210 alkyl ammonium group Chemical group 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 235000019293 ammonium adipate Nutrition 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- RATMLZHGSYTFBL-UHFFFAOYSA-N azanium;6-hydroxy-6-oxohexanoate Chemical compound N.OC(=O)CCCCC(O)=O RATMLZHGSYTFBL-UHFFFAOYSA-N 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 230000002950 deficient Effects 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
- FRKMZLXCWXPBOB-UHFFFAOYSA-N diazanium;2-methylidenebutanedioate Chemical compound [NH4+].[NH4+].[O-]C(=O)CC(=C)C([O-])=O FRKMZLXCWXPBOB-UHFFFAOYSA-N 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- AEDZKIACDBYJLQ-UHFFFAOYSA-N ethane-1,2-diol;hydrate Chemical compound O.OCCO AEDZKIACDBYJLQ-UHFFFAOYSA-N 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920000609 methyl cellulose Polymers 0.000 description 1
- 239000001923 methylcellulose Substances 0.000 description 1
- 235000010981 methylcellulose Nutrition 0.000 description 1
- 150000007522 mineralic acids Chemical class 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- AJFDBNQQDYLMJN-UHFFFAOYSA-N n,n-diethylacetamide Chemical compound CCN(CC)C(C)=O AJFDBNQQDYLMJN-UHFFFAOYSA-N 0.000 description 1
- KERBAAIBDHEFDD-UHFFFAOYSA-N n-ethylformamide Chemical compound CCNC=O KERBAAIBDHEFDD-UHFFFAOYSA-N 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Pyridine Compounds (AREA)
- 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〕
この発明は、電解コンデンサに用いられる電解液に関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrolytic solution used in an electrolytic capacitor.
電解コンデンサは、アルミニウム、タンタル、ニオブな
どの表面に絶縁性の酸化皮膜が形成されるいわゆる弁金
属を陽極に用い、電極表面に陽極酸化処理などの操作に
よって、誘電体層となる前記絶縁酸化物層を形成する。Electrolytic capacitors use a so-called valve metal, such as aluminum, tantalum, or niobium, on the surface of which an insulating oxide film is formed as an anode, and the insulating oxide, which becomes a dielectric layer, is applied to the electrode surface by an operation such as anodizing. form a layer.
次にこの陽極電極に陰極側の集電極を対峙させこれら電
極間に電解液を介在させて構成されている。Next, a collector electrode on the cathode side faces this anode electrode, and an electrolytic solution is interposed between these electrodes.
電解コンデンサの電極は、一般に箔状の弁金属を帯状に
切断して、電解、液の保持と陽極、陰極分離のために挿
入されるセパレータとともに巻回して円筒状に形成され
る。The electrodes of an electrolytic capacitor are generally formed into a cylindrical shape by cutting a foil valve metal into strips and winding them together with a separator inserted for electrolysis, liquid retention, and separation of anode and cathode.
電解液はこのセパレータに保持されて、誘電体である酸
化皮膜表面に接触し、真の陰極として機能する。電解液
は、無機酸、有機酸あるいはこれらの塩を各種の溶媒に
溶解したものが用いられている。The electrolytic solution is held by this separator and comes into contact with the surface of the oxide film, which is a dielectric, and functions as a true cathode. The electrolytic solution used is an inorganic acid, an organic acid, or a salt thereof dissolved in various solvents.
電解液は、その電導性が電解コンデンサの損失やインピ
ーダンス特性に直接影響を与えることから、高い電導度
を持ったものが要求されている。The electrolyte is required to have high conductivity because its conductivity directly affects the loss and impedance characteristics of the electrolytic capacitor.
従来の電解液で、比較的高い電導度を持つものとして、
エチレングリコールにアジピン酸アンモニウムを溶解さ
せたものが良く知られている。As a conventional electrolyte with relatively high conductivity,
A well-known solution is ammonium adipate dissolved in ethylene glycol.
しかしこのような電解液の場合、電導度を高めるために
、水の添加がおこなわれている。しかし、水の存在は１
００°Ｃを越すような高温では水が気化し内部の圧力を
高め、電解コンデンサの封口部を破損させたり、防爆弁
を作動させ、電解コンデンサを不良にしてしまう不都合
があった。また低温では水分が凍結し、充分な電気特性
が得られないなどの欠点があり、広い温度範囲での使用
が求められる目的には、到底用いることができなかった
。However, in the case of such an electrolytic solution, water is added to increase the conductivity. However, the presence of water is 1
At high temperatures exceeding 00°C, water evaporates and increases the internal pressure, which can damage the sealing part of the electrolytic capacitor or activate the explosion-proof valve, causing the electrolytic capacitor to become defective. Furthermore, it has the disadvantage that water freezes at low temperatures, making it impossible to obtain sufficient electrical properties, and it has never been possible to use it for purposes that require use over a wide temperature range.
近年このような欠点を改良するものとして、水の含有を
極力減らし、しかも高い電導度が得られる電解液が検討
されている。このような目的に適合するものとして、例
えば特開昭５９−７８５２２号公報のように飽和鎖状ジ
カルボン酸の四級アンモニウム塩を溶質に用いたものや
、特開昭６２−２７６８１５号公報のように不飽和鎖状
ジカルボン酸の第四級アンモニウム塩を溶質として用い
これを極性溶媒に溶解したものがある。これらの従来例
は、既存の電解液に比べては確かに高い電導度を持ち損
失が小さくなるが、より高度な特性を要求される目的に
おいてはその特性は充分でなく、必要に応じて僅かな水
を加えて電導度を向上させているのが現状であった。In recent years, in order to improve these drawbacks, studies have been conducted on electrolytic solutions that can reduce the water content as much as possible and yet provide high electrical conductivity. Examples of materials suitable for this purpose include those using a quaternary ammonium salt of a saturated chain dicarboxylic acid as a solute, as disclosed in JP-A-59-78522, and JP-A-62-276,815, which uses a quaternary ammonium salt of a saturated chain dicarboxylic acid as a solute. There is a method in which a quaternary ammonium salt of an unsaturated chain dicarboxylic acid is used as a solute and dissolved in a polar solvent. These conventional examples certainly have higher conductivity and lower loss than existing electrolytes, but their characteristics are not sufficient for purposes that require more advanced characteristics, and if necessary, Currently, conductivity is improved by adding water.
この発明は、従来のこのような技術背景にもとづいて、
実質的に非水系の電解液であって高い電導度を有する新
規な電解液を得ることを目的としている。This invention is based on this conventional technical background,
The purpose of this invention is to obtain a novel electrolytic solution that is substantially non-aqueous and has high electrical conductivity.
〔課題を解決するための手段］
この発明の電解液は、イタコン酸の複素環式第四級アン
モニウム塩が、電解コンデンサ用の電解液用の溶質とし
て高い電導度を呈することを見出したもので、この溶質
を少なくとも電解液の溶質として含むことを特徴として
いる。[Means for Solving the Problems] The electrolytic solution of the present invention is based on the discovery that a heterocyclic quaternary ammonium salt of itaconic acid exhibits high conductivity as a solute for an electrolytic solution for an electrolytic capacitor. , is characterized in that it contains this solute at least as a solute in an electrolytic solution.
イタコン酸は、
の構造式を持った不飽和結合を持つジカルボン酸である
。Itaconic acid is a dicarboxylic acid with an unsaturated bond and the structural formula.
また複素環式第四級アンモニウムの具体例としては、Ｎ
、Ｎ−ジメチルピロリジニウム、Ｎ−メチルピリドコリ
ニウム、Ｎ−メチルキヌクリジニウム、Ｎ、Ｎ−ジエチ
ルモルホリニウム、Ｎ、Ｎ−ジエチル−１，２，３，６
−チトラヒドロピリジニウム、Ｎ−メチル−Ｎ−プロピ
ルピペリジニウム、Ｎ−メチルピリジニウム、Ｎ−エチ
ル−２，４，６−トリメチルピリジニウム、Ｎ−メチル
ピリニウム、Ｎ−メチルピリジニウムなどを例示するこ
とができる。Further, specific examples of heterocyclic quaternary ammonium include N
, N-dimethylpyrrolidinium, N-methylpyridocorrinium, N-methylquinuclidinium, N,N-diethylmorpholinium, N,N-diethyl-1,2,3,6
-titrahydropyridinium, N-methyl-N-propylpiperidinium, N-methylpyridinium, N-ethyl-2,4,6-trimethylpyridinium, N-methylpyrinium, N-methylpyridinium, etc. can.
これらの第四級アンモニウム塩を各種の溶媒中に溶解し
て電解液が得られる。Electrolytes can be obtained by dissolving these quaternary ammonium salts in various solvents.
溶媒は、この発明の溶質に対し可溶性を持つものであれ
ば特に限定はないが、具体例を例示すると、Ｎ−メチル
ホルムアミド、Ｎ、Ｎ−ジメチルホルムアミド、Ｎ−エ
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、Ｎ−ジエチルアセトア
ミドなどのアミド類。The solvent is not particularly limited as long as it is soluble in the solute of the present invention, but specific examples include N-methylformamide, N,N-dimethylformamide, N-ethylformamide, N,N-diethyl. Amides such as formamide, N-methylacetamide, and N,N-diethylacetamide.
γ−ブチロラクトン、γ−バレロラクトンなどのラクト
ン類。Lactones such as γ-butyrolactone and γ-valerolactone.
エチレンカーボネート、ブチレンカーボネート、プロピ
レンカーボネートなどのカーボネート類。Carbonates such as ethylene carbonate, butylene carbonate, and propylene carbonate.
エチレングリコール、ジエチレングリコール、プロピレ
ングリコール、エチルセルソルブ、メチルセルソルブな
どのアルコール類。Alcohols such as ethylene glycol, diethylene glycol, propylene glycol, ethyl cellosolve, methyl cellosolve, etc.
さらには、Ｎ−メチル−２−ピロリドン、ジメチルスル
ホキシド、アセトニトリルなどの各種の溶媒が使用可能
である。Furthermore, various solvents such as N-methyl-2-pyrrolidone, dimethyl sulfoxide, and acetonitrile can be used.
これらの溶媒は単一用いてもよいし、二種以上の溶媒を
組み合わせた混合溶媒であってもよい。These solvents may be used alone or as a mixed solvent of two or more solvents.
この発明のイタコン酸の複素環式第四級アンモニウム塩
は溶質として、各種の溶媒への溶解度が高く、高い電導
度が得られる。また電導度を高めるだめに水を添加する
必要がないので、高温での使用により電解コンデンサの
内圧が上昇することがない。また低温での凍結や溶質の
析出が起きにくい。The heterocyclic quaternary ammonium salt of itaconic acid of the present invention has high solubility in various solvents as a solute, and high electrical conductivity can be obtained. Furthermore, since there is no need to add water to increase conductivity, the internal pressure of the electrolytic capacitor does not increase when used at high temperatures. It is also less prone to freezing at low temperatures and precipitation of solutes.
次にこの発明を、実施例に基づいて説明する。 Next, the present invention will be explained based on examples.
まずこの発明のイタコン酸の複素環式第四級アンモニウ
ムと、各種の溶媒とを組み合わせて電解液を作成し、そ
の電導度を調べた。なお比較のため、アジピン酸アンモ
ニウム−エチレングリコール系の電解液および、イタコ
ン酸の第四級のアルキルアンモニウム塩を用いた電解液
とを併せて試験した。First, an electrolytic solution was prepared by combining the heterocyclic quaternary ammonium itaconic acid of the present invention with various solvents, and its conductivity was examined. For comparison, an ammonium adipate-ethylene glycol electrolytic solution and an electrolytic solution using a quaternary alkyl ammonium salt of itaconic acid were also tested.
以下に組成と電導度とを列挙する。なおいずれの例も組
成割合は重量％、電導度はｍ Ｓ ／ ｃｍ・３０°Ｃ
の単位である。The composition and conductivity are listed below. In each example, the composition ratio is % by weight, and the electrical conductivity is mS/cm・30°C
is the unit of
一主主里±土−
（組 成）
Ｔ−ブチロラクトン ８０イタコン酸モ
ノ−Ｎ、 Ｎ−
ジエチルピロリジニウム
（電導度）
一生主班拠又一
（組 成）
γ−ブチロラクトン
アセトニトリル
イタコン酸モノ−Ｎ、Ｎ−
ジエチルピペリジニウム
（電導度）
一本発皿斑主−
（組 成）
Ｎ、Ｎ−ジメチルホルムアミド
イタコン酸モノ−Ｎ、Ｎ
ジメチルモルホリニウム
（電導度）
一本立１阻土−
（組 成）
Ｎ、Ｎ−ジメチルホルムアミド
エチレングリコール
イタコン酸モノ−Ｎ〜
１１．５
１５．４
１５．３
メチルキヌクリジニウム
（電導度）
一本生豆皿ｉ−
（組 成）
Ｎ−メチルホルムアミド
イタコン酸ジーＮ、Ｎ−
ジメチルピロリジニウム
（電導度）
一本主皿斑旦一
（ａ 成）
Ｔ−ブチロラクトン
メチルセルソルブ
イタコン酸モノ−Ｎ〜
エチルキヌクリジニウム
（電導度）
一本主匪皿工一
（＆［ｌ 成）
アセトニトリル
エチレングリコール
イタコン酸モノ−Ｎ、Ｎ−
１４，０
１８，２
１３，３
ジメチルピロリジニウム
（電導度）
ＪｋＵ旧１
（組 成）
エチレングリコール
水
アジピン酸アンモニウム
（電導度）
一止較１
（組 成）
エチレングリコール
γ−ブチロラクトン
水
イタコン酸
テトラメチルアンモニウム
（電導度）
一止較貫主一
（組 成）
ブロビレンカーボネー［・
水
１４．９
イタコン酸
テトラエチルアンモニウム ２０
イタコン酸 １０（電導度）５
．９
これら組成かられかるように、この発明の電解液はいず
れも非水系の電解液でありながら、高い電導度を示すこ
とがわかる。(Composition) T-butyrolactone 80 itaconate mono-N, N-diethylpyrrolidinium (conductivity) Issei main base base (composition) γ-butyrolactone acetonitrile itaconate mono-N , N-diethylpiperidinium (conductivity) Single plate plate- (composition) N,N-dimethylformamide itaconic acid mono-N,N dimethylmorpholinium (conductivity) Single plate plate- (composition) Composition) N,N-dimethylformamide ethylene glycol itaconic acid mono-N~ 11.5 15.4 15.3 Methylquinuclidinium (conductivity) Single raw bean plate i- (Composition) N-Methylformamide Di-N, N- dimethylpyrrolidinium itaconate (conductivity) 1 main plate Madanichi (a composition) T-butyrolactone methyl cellulose mono-N-ethylquinuclidinium itaconate (conductivity) 1 main Koichi Inozara (& [l composition) Acetonitrile ethylene glycol itaconic acid mono-N, N- 14,0 18,2 13,3 Dimethylpyrrolidinium (conductivity) JkU old 1 (composition) Ethylene glycol water adipic acid Ammonium (conductivity) One-stop comparison 1 (composition) Ethylene glycol γ-butyrolactone water Tetramethyl ammonium itaconate (conductivity) One-stop comparison one (composition) Brobylene carbonate [water 14.9 Tetraethyl itaconate Ammonium 20 Itaconic acid 10 (conductivity) 5
．． 9 As can be seen from these compositions, it can be seen that the electrolytic solutions of the present invention exhibit high electrical conductivity even though they are all non-aqueous electrolytic solutions.
次にこれらの電解液を用いて電解コンデンサを作成し、
寿命試験をおこなった結果を示す。Next, create an electrolytic capacitor using these electrolytes,
The results of the life test are shown.
作成した電解コンデンサは、アルミニウム箔を陽極に用
いた巻回型のコンデンサ素子からなる定格電圧１６Ｖ、
静電容量１８０μＦのものである。The electrolytic capacitor we created consists of a wound-type capacitor element using aluminum foil as an anode, and has a rated voltage of 16V.
It has a capacitance of 180 μF.
このコンデンサ素子に前記の各電解液を含浸させ、金属
製の外装ケースに収納し、開口部を弾性ゴムで密封して
コンデンサとした。This capacitor element was impregnated with each of the electrolytic solutions described above, housed in a metal exterior case, and the opening was sealed with elastic rubber to form a capacitor.
各電解コンデンサについて、静電容量、損失（Ｔ ａ
ｎδ）および漏れ電流（２分値）についての初期値を第
１表に、また１１０°Ｃで１０００時間の負荷（定格電
圧印加）で高温寿命試験を実施した後を値を第２表に示
す、なお、いずれの測定もコンデンサ１０個の平均値で
ある。For each electrolytic capacitor, capacitance, loss (Ta
Table 1 shows the initial values for nδ) and leakage current (2-minute values), and Table 2 shows the values after performing a high-temperature life test under a load (rated voltage applied) at 110°C for 1000 hours. Note that all measurements are average values of 10 capacitors.
−」しＩ良−
（１１０’Ｃ，１０００時間経過値）
の電導度が高く、かつ非水の電解液であるので、損失や
、インピーダンスが低く、かつ使用温度範囲が広い電解
コンデンサを得ることができる。また高温で長期間使用
しても、内圧が上昇しないので、長期間安定した特性が
得られ、長寿命で信顛性の高い電解コンデンサを得るこ
とができる。Since it has high conductivity (110'C, 1000 hours elapsed value) and is a non-aqueous electrolyte, it is possible to obtain an electrolytic capacitor with low loss and impedance and a wide operating temperature range. I can do it. In addition, even if the capacitor is used at high temperatures for a long period of time, the internal pressure does not increase, so stable characteristics can be obtained for a long period of time, and an electrolytic capacitor with a long life and high reliability can be obtained.
Claims (2)
質として含むことを特徴とする電解コンデンサ用電解液
。(1) An electrolytic solution for an electrolytic capacitor, which contains a heterocyclic quaternary ammonium salt of itaconic acid as a solute.
ルピロリジニウム、Ｎ−メチルピリドコリニウム、Ｎ−
メチルキヌクリジニウム、Ｎ，Ｎ−ジエチルモルホリニ
ウム、Ｎ，Ｎ−ジエチル−１，２，３，６−テトラヒド
ロピリジニウム、Ｎ−メチル−Ｎ−プロピルピペリジニ
ウム、Ｎ−メチルピリジニウム、Ｎ−エチル−２，４，
６−トリメチルピリジニウム、Ｎ−メチルレピジニウム
、Ｎ−メチルチアルジニウムから選ばれた一種もしくは
二種以上の組み合わせであるところの請求項１記載の電
解コンデンサ用電解液。(2) Heterocyclic quaternary ammonium is N,N-dimethylpyrrolidinium, N-methylpyridocorinium, N-
Methylquinuclidinium, N,N-diethylmorpholinium, N,N-diethyl-1,2,3,6-tetrahydropyridinium, N-methyl-N-propylpiperidinium, N-methylpyridinium, N- ethyl-2,4,
2. The electrolytic solution for an electrolytic capacitor according to claim 1, which is one or a combination of two or more selected from 6-trimethylpyridinium, N-methyllepidinium, and N-methylthiardinium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63174499A JP2572021B2 (en) | 1988-07-13 | 1988-07-13 | Electrolyte for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63174499A JP2572021B2 (en) | 1988-07-13 | 1988-07-13 | Electrolyte for electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0225013A true JPH0225013A (en) | 1990-01-26 |
| JP2572021B2 JP2572021B2 (en) | 1997-01-16 |
Family
ID=15979564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63174499A Expired - Lifetime JP2572021B2 (en) | 1988-07-13 | 1988-07-13 | Electrolyte for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2572021B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0269914A (en) * | 1988-09-06 | 1990-03-08 | Nippon Chemicon Corp | Electrolyte for electrolytic capacitor |
| US5160019A (en) * | 1990-07-24 | 1992-11-03 | Staalkat B.V. | Carrier for articles such as eggs and conveying apparatus comprising such a carrier |
| WO2026033229A1 (en) * | 2024-08-08 | 2026-02-12 | Innospec Limited | Fuel compositions and method and uses relating thereto |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62272511A (en) * | 1986-05-20 | 1987-11-26 | 三菱油化株式会社 | Electrolyte for electrolytic capacitor |
| JPS62276815A (en) * | 1986-05-20 | 1987-12-01 | 旭硝子株式会社 | New electrolytic capacitor |
-
1988
- 1988-07-13 JP JP63174499A patent/JP2572021B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62272511A (en) * | 1986-05-20 | 1987-11-26 | 三菱油化株式会社 | Electrolyte for electrolytic capacitor |
| JPS62276815A (en) * | 1986-05-20 | 1987-12-01 | 旭硝子株式会社 | New electrolytic capacitor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0269914A (en) * | 1988-09-06 | 1990-03-08 | Nippon Chemicon Corp | Electrolyte for electrolytic capacitor |
| US5160019A (en) * | 1990-07-24 | 1992-11-03 | Staalkat B.V. | Carrier for articles such as eggs and conveying apparatus comprising such a carrier |
| WO2026033229A1 (en) * | 2024-08-08 | 2026-02-12 | Innospec Limited | Fuel compositions and method and uses relating thereto |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2572021B2 (en) | 1997-01-16 |
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