JPH0815131B2 - Electrolyte for capacitors - Google Patents
Electrolyte for capacitorsInfo
- Publication number
- JPH0815131B2 JPH0815131B2 JP9786787A JP9786787A JPH0815131B2 JP H0815131 B2 JPH0815131 B2 JP H0815131B2 JP 9786787 A JP9786787 A JP 9786787A JP 9786787 A JP9786787 A JP 9786787A JP H0815131 B2 JPH0815131 B2 JP H0815131B2
- Authority
- JP
- Japan
- Prior art keywords
- solvent
- acid
- electrolytic solution
- quaternary ammonium
- electrolyte
- 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.)
- Expired - Fee Related
Links
- 239000003990 capacitor Substances 0.000 title claims description 9
- 239000003792 electrolyte Substances 0.000 title description 5
- 239000008151 electrolyte solution Substances 0.000 claims description 15
- 150000004714 phosphonium salts Chemical group 0.000 claims description 8
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 8
- 125000000217 alkyl group Chemical group 0.000 claims description 3
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims 1
- 239000002904 solvent Substances 0.000 description 17
- 239000002253 acid Substances 0.000 description 15
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 10
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- -1 phosphonium ion Chemical class 0.000 description 3
- OZJPLYNZGCXSJM-UHFFFAOYSA-N 5-valerolactone Chemical compound O=C1CCCCO1 OZJPLYNZGCXSJM-UHFFFAOYSA-N 0.000 description 2
- 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
- PMDCZENCAXMSOU-UHFFFAOYSA-N N-ethylacetamide Chemical compound CCNC(C)=O PMDCZENCAXMSOU-UHFFFAOYSA-N 0.000 description 2
- ATHHXGZTWNVVOU-UHFFFAOYSA-N N-methylformamide Chemical compound CNC=O ATHHXGZTWNVVOU-UHFFFAOYSA-N 0.000 description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- GAEKPEKOJKCEMS-UHFFFAOYSA-N gamma-valerolactone Chemical compound CC1CCC(=O)O1 GAEKPEKOJKCEMS-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- HXJUTPCZVOIRIF-UHFFFAOYSA-N sulfolane Chemical compound O=S1(=O)CCCC1 HXJUTPCZVOIRIF-UHFFFAOYSA-N 0.000 description 2
- CBXCPBUEXACCNR-UHFFFAOYSA-N tetraethylammonium Chemical compound CC[N+](CC)(CC)CC CBXCPBUEXACCNR-UHFFFAOYSA-N 0.000 description 2
- HTGQCLJTWPSFNL-UHFFFAOYSA-N (2-methylphenoxy)boronic acid Chemical compound CC1=CC=CC=C1OB(O)O HTGQCLJTWPSFNL-UHFFFAOYSA-N 0.000 description 1
- ZZXUZKXVROWEIF-UHFFFAOYSA-N 1,2-butylene carbonate Chemical compound CCC1COC(=O)O1 ZZXUZKXVROWEIF-UHFFFAOYSA-N 0.000 description 1
- CYSGHNMQYZDMIA-UHFFFAOYSA-N 1,3-Dimethyl-2-imidazolidinon Chemical compound CN1CCN(C)C1=O CYSGHNMQYZDMIA-UHFFFAOYSA-N 0.000 description 1
- HVVRUQBMAZRKPJ-UHFFFAOYSA-N 1,3-dimethylimidazolium Chemical compound CN1C=C[N+](C)=C1 HVVRUQBMAZRKPJ-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- OOWFYDWAMOKVSF-UHFFFAOYSA-N 3-methoxypropanenitrile Chemical compound COCCC#N OOWFYDWAMOKVSF-UHFFFAOYSA-N 0.000 description 1
- VWIIJDNADIEEDB-UHFFFAOYSA-N 3-methyl-1,3-oxazolidin-2-one Chemical compound CN1CCOC1=O VWIIJDNADIEEDB-UHFFFAOYSA-N 0.000 description 1
- CMJLMPKFQPJDKP-UHFFFAOYSA-N 3-methylthiolane 1,1-dioxide Chemical compound CC1CCS(=O)(=O)C1 CMJLMPKFQPJDKP-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 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
- OHLUUHNLEMFGTQ-UHFFFAOYSA-N N-methylacetamide Chemical compound CNC(C)=O OHLUUHNLEMFGTQ-UHFFFAOYSA-N 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- GSCLMSFRWBPUSK-UHFFFAOYSA-N beta-Butyrolactone Chemical compound CC1CC(=O)O1 GSCLMSFRWBPUSK-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000001768 cations Chemical class 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
- 239000003759 ester based solvent Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 125000000524 functional group Chemical group 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
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 231100000053 low toxicity Toxicity 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
- 150000002825 nitriles Chemical class 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 125000004433 nitrogen atom Chemical group N* 0.000 description 1
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 125000004437 phosphorous atom Chemical group 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- SZWHXXNVLACKBV-UHFFFAOYSA-N tetraethylphosphanium Chemical compound CC[P+](CC)(CC)CC SZWHXXNVLACKBV-UHFFFAOYSA-N 0.000 description 1
- 125000005425 toluyl group Chemical group 0.000 description 1
- WVLBCYQITXONBZ-UHFFFAOYSA-N trimethyl phosphate Chemical compound COP(=O)(OC)OC WVLBCYQITXONBZ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
- Networks Using Active Elements (AREA)
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 the Invention According to the present invention, an excellent electrolytic solution for a capacitor having high electric conductivity (hereinafter sometimes simply referred to as electrolytic solution) can be obtained.
従来の技術 コンデンサの特性は種々の要因によつて決定されてい
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価直列
抵抗（ESR）に大きな影響を及ぼすことが判明してい
る。2. Description of the Related Art Although the characteristics of capacitors are determined by various factors, the characteristics of the electrolytic solution that is housed in the outer case together with the capacitor element can greatly affect the impedance or equivalent series resistance (ESR). It's known.
汎用の電解コンデンサには、従来よりエチレングリコ
ール−アジピン酸アンモニウム系の電解液が使用されて
いる。Conventionally, an ethylene glycol-ammonium adipate-based electrolytic solution has been used for a general-purpose electrolytic capacitor.
しかし、近年のスイツチングレギニレーターの高周波
化に伴い。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。However, with the recent shift to higher frequencies for switching reguinators. Furthermore, a capacitor having low impedance or low equivalent series resistance is required, and development of an electrolyte having 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、アルカン硼酸およびアリール硼酸の四
級アンモニウム塩あるいは四級ホスホニウム塩を使用し
た電解液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 Problems The inventors of the present invention have conducted extensive studies to find an electrolyte having a high conductivity, and an electrolyte using a quaternary ammonium salt or a quaternary phosphonium salt of alkaneboric acid and arylboric acid has a high conductivity. The present invention has been completed by finding out that the degree is shown.
即ち、本発明はアルカン硼酸およびアリール硼酸の四
級アンモニウム塩あるいは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 by using a quaternary ammonium salt or a quaternary phosphonium salt of alkaneboric acid and arylboric acid as a solute.
発明の効果 本発明で溶質として使用するアルカン硼酸およびアリ
ール硼酸の四級アンモニウム塩あるいはホスホニウム塩
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
により、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 ammonium salt or phosphonium salt of alkaneboric acid and arylboric acid used as a solute in the present invention has good solubility in a solvent, and its electrolytic solution exhibits high conductivity and is associated with a solvent having a wide freezing point to boiling point range. When used as an electrolyte solution, the electrolyte solution for capacitors has a wide operating temperature range.
発明の具体的説明 本発明において、溶質として用いられるアルカン硼酸
およびアリール硼酸の四級アンモニウム塩あるいは四級
ホスホニウム塩のアニオン成分は一般式（Ｉ）で表わさ
れる。DETAILED DESCRIPTION OF THE INVENTION In the present invention, the anion component of the quaternary ammonium salt or quaternary phosphonium salt of alkaneboric acid and arylboric acid used as a solute is represented by the general formula (I).
式中のＲは、メチル、エチル、プロピル、イソプロピ
ル、ブチル、フエニル、トルイル等の炭素数１〜10のア
ルキル基またはアリール基であり、これらアルキル基ま
たはアリール基は、水酸基、アミノ基、ニトロ基等の官
能基を含んでいても良い。 R in the formula is an alkyl group or aryl group having 1 to 10 carbon atoms such as methyl, ethyl, propyl, isopropyl, butyl, phenyl, toluyl, and the alkyl group or aryl group is a hydroxyl group, an amino group or a nitro group. It may include a functional group such as.
具体的には、メタン硼酸、エタン硼酸、フエニル硼
酸、トリル硼酸等の共役塩基を例示することができる。Specific examples thereof include conjugated bases such as methaneboric acid, ethaneboric acid, phenylboric acid and tolylboric acid.
カチオン成分としては一般式（II）で表わされる脂肪
族四級アンモニウムイオンまたはホスホニウムイオンの
他、一般式（III）、（IV）で表わされる脂環式四級ア
ンモニウイオンまたはホスホニウムイオン、そして、Ｎ
−エチルピリジニウム、N,N′−ジメチルイミダゾリウ
ム等の芳香族四級アンモニウムイオンを例示することが
できる。また、上記モノカチオンの他、一般式（Ｖ）で
表わされるポリカチオンも例示することができる。As the cation component, in addition to the aliphatic quaternary ammonium ion or phosphonium ion represented by the general formula (II), the alicyclic quaternary ammonium ion or phosphonium ion represented by the general formula (III) or (IV), and N
Examples thereof include aromatic quaternary ammonium ions such as -ethylpyridinium and N, N'-dimethylimidazolium. In addition to the above monocations, polycations represented by the general formula (V) can be exemplified.
一般式（II）〜（Ｖ）中のＡはＮ原子又はＰ原子であ
り、R1〜R6はメチル、エチル、プロピル、ブチルおよび
フエニル等である。また、ｌ、ｍは４〜６、ｎは１〜10
が一般的である。 In the general formulas (II) to (V), A is an N atom or a P atom, and R 1 to R 6 are methyl, ethyl, propyl, butyl, phenyl and the like. Also, l and m are 4 to 6 and n is 1 to 10.
Is common.
本発明のアルカンおよびアリール硼酸の四級アンモニ
ウム塩又は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−エチルホルムアミ
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、Ｎ−メチルオキサ
ゾリジノン、N,N′−ジメチルイミダゾリジノン等のア
ミド溶媒、γ−ブチロラクトン、β−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、メチルセロソルブ等のア
ルコール溶媒、スルホラン、３−メチルスルホラン等の
スルホラン溶媒、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エート等の燐酸エ
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。As a solvent for dissolving the quaternary ammonium salt or quaternary phosphonium salt of the alkane and arylboric acid of the present invention, N-methylformamide, N-ethylformamide, N, N-dimethylformamide, N, N-diethylformamide, N- Amide solvents such as methylacetamide, N-ethylacetamide, N, N-dimethylacetamide, N, N-diethylacetamide, N-methylpyrrolidinone, N-methyloxazolidinone, N, N′-dimethylimidazolidinone, γ-butyrolactone, β-butyrolactone,
γ-valerolactone, lactone solvent such as δ-valerolactone, carbonate solvent such as ethylene carbonate, propylene carbonate, butylene carbonate, alcohol solvent such as ethylene glycol, glycerin, methyl cellosolve, sulfolane, sulfolane solvent such as 3-methylsulfolane, Examples thereof include nitrile solvents such as 3-methoxypropionitrile, and phosphoric acid ester solvents such as trimethylphosphate, either alone or as a mixed solvent.
これらの中でも、γ−ブチロラクトンを主体溶媒とす
る電解液が、使用温度範囲が広く、電導度が高く、毒性
が低く、耐ハロゲン性が強い等のことから好ましい。Among these, an electrolytic solution containing γ-butyrolactone as a main solvent is preferable because it has a wide operating temperature range, high electric conductivity, low toxicity, and strong halogen resistance.
上記溶媒に対するアルカン硼酸およびアリール硼酸の
四級アンモニウム塩あるいはホスホニウム塩の溶解量は
飽和濃度以下、好ましくは0.1〜40重量％である。The amount of the quaternary ammonium salt or phosphonium salt of alkaneboric acid and arylboric acid dissolved in the solvent is not more than the saturation concentration, preferably 0.1 to 40% by weight.
本発明の電解液は本質的には、アルカン硼酸およびア
リール硼酸の四級アンモニウム塩あるいはホスホニウム
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 comprises a quaternary ammonium salt or phosphonium salt of alkaneboric acid and arylboric acid and a solvent, but a small amount of a solute is added for various purposes such as prevention of electrolytic corrosion and reduction of leakage current. It doesn't matter.
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 described in more detail with reference to the following examples.
実施例１ γ−ブチロラクトン溶媒に20重量％のメタン硼酸テト
ラエチルアンモニウムを溶解させて、電解液を得た。こ
の電解液の25℃における電導度は5.5mS/cmであり、＋、
−一組のアルミニウム平滑箔に5mA/cm2の定電流を印加
した時の火花電圧は120Vであつた。Example 1 20 wt% tetraethylammonium methaneborate was dissolved in a γ-butyrolactone solvent to obtain an electrolytic solution. The conductivity of this electrolyte at 25 ° C is 5.5 mS / cm, +,
-The spark voltage was 120 V when a constant current of 5 mA / cm 2 was applied to a set of aluminum smooth foils.
実施例２ 実施例１において、メタン硼酸テトラエチルアンモニ
ウムの代わりに、メタン硼酸テトラエチルホスホニウム
を使用した電解液の電導度および火花電圧はそれぞれ4.
6mS/cm、210Vであつた。Example 2 In Example 1, the electric conductivity and the spark voltage of the electrolytic solution using tetraethylphosphonium methaneborate instead of tetraethylammonium methaneborate were 4.
It was 6 mS / cm and 210 V.
実施例３ 実施例１において、γ−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
の電導度および火花電圧はそれぞれ7.5mS/cm、195Vであ
つた。Example 3 In Example 1, the conductivity and the spark voltage of the electrolytic solution using N, N-dimethylformamide solvent instead of γ-butyrolactone solvent were 7.5 mS / cm and 195 V, respectively.
実施例４ 実施例１において、γ−ブチロラクトン溶媒の代わり
に、プロピレンカーボネート溶媒を使用した電解液の電
導度および火花電圧は、それぞれ5.4mS/cm、310Vであつ
た。Example 4 In Example 1, the electrical conductivity and the spark voltage of the electrolytic solution using a propylene carbonate solvent instead of the γ-butyrolactone solvent were 5.4 mS / cm and 310 V, respectively.
Claims (1)
四級アンモニウム塩あるいは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。 （式中、Ｒは炭素数１〜10のアルキル基、またはアリー
ル基を示す。）1. An electrolytic solution for a capacitor, comprising a quaternary ammonium salt or a quaternary phosphonium salt of a boric acid derivative represented by the following general formula (I) as a solute. (In the formula, R represents an alkyl group having 1 to 10 carbon atoms or an aryl group.)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9786787A JPH0815131B2 (en) | 1987-04-21 | 1987-04-21 | Electrolyte for capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9786787A JPH0815131B2 (en) | 1987-04-21 | 1987-04-21 | Electrolyte for capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63262832A JPS63262832A (en) | 1988-10-31 |
| JPH0815131B2 true JPH0815131B2 (en) | 1996-02-14 |
Family
ID=14203697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9786787A Expired - Fee Related JPH0815131B2 (en) | 1987-04-21 | 1987-04-21 | Electrolyte for capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0815131B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118675898B (en) * | 2024-08-23 | 2024-11-05 | 南通江海电容器股份有限公司 | A corrosion-resistant electrolyte for high-voltage aluminum electrolytic capacitor and a preparation method thereof, and an electrolytic capacitor |
-
1987
- 1987-04-21 JP JP9786787A patent/JPH0815131B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63262832A (en) | 1988-10-31 |
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| JPH0815131B2 (en) | Electrolyte for capacitors | |
| JPH0340495B2 (en) | ||
| JPS63262830A (en) | Electrolyte for capacitors | |
| JPH0556846B2 (en) | ||
| JPS63175412A (en) | Electrolyte for electrolytic capacitors | |
| JPH0760780B2 (en) | Electrolytic solution for aluminum electrolytic capacitors | |
| JPS6320818A (en) | Electrolyte for capacitor | |
| JPH0815130B2 (en) | Electrolyte for capacitors | |
| JPS631017A (en) | Electrolyte for aluminum electrolytic capacitors | |
| JPS63181413A (en) | Electrolyte for electrolytic capacitors | |
| JPS63262831A (en) | Electrolyte for capacitors | |
| JPH0342693B2 (en) | ||
| JPS631015A (en) | Electrolyte for capacitor | |
| JPS631020A (en) | Electrolyte for capacitor | |
| JPS6365615A (en) | Capacitor electrolyte | |
| JP3281945B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPS635510A (en) | Electrolyte for capacitor | |
| JPH07118432B2 (en) | Electrolytic solution for driving electrolytic capacitors | |
| JPS631019A (en) | Electrolyte for capacitor | |
| JPH0391911A (en) | Electrolyte for electrolytic capacitor | |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |