JPH0426107A - Electrolyte for electrolytic capacitor - Google Patents
Electrolyte for electrolytic capacitorInfo
- Publication number
- JPH0426107A JPH0426107A JP13175290A JP13175290A JPH0426107A JP H0426107 A JPH0426107 A JP H0426107A JP 13175290 A JP13175290 A JP 13175290A JP 13175290 A JP13175290 A JP 13175290A JP H0426107 A JPH0426107 A JP H0426107A
- Authority
- JP
- Japan
- Prior art keywords
- acid
- boric acid
- electrolytic
- dissolved
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 21
- 239000003792 electrolyte Substances 0.000 title claims abstract description 8
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004327 boric acid Substances 0.000 claims abstract description 13
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 10
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 5
- 239000008151 electrolyte solution Substances 0.000 claims description 16
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 claims description 3
- 150000007524 organic acids Chemical class 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 abstract description 9
- 239000002253 acid Substances 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- VWSRWGFGAAKTQG-UHFFFAOYSA-N ammonium benzoate Chemical compound [NH4+].[O-]C(=O)C1=CC=CC=C1 VWSRWGFGAAKTQG-UHFFFAOYSA-N 0.000 abstract 1
- IUZSEJJESGRFMH-UHFFFAOYSA-N azane;decanedioic acid Chemical compound N.OC(=O)CCCCCCCCC(O)=O IUZSEJJESGRFMH-UHFFFAOYSA-N 0.000 abstract 1
- IKFMRFYLIRAXAJ-UHFFFAOYSA-N azane;nonanedioic acid Chemical compound N.OC(=O)CCCCCCCC(O)=O IKFMRFYLIRAXAJ-UHFFFAOYSA-N 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- DIOQZVSQGTUSAI-UHFFFAOYSA-N n-butylhexane Natural products CCCCCCCCCC DIOQZVSQGTUSAI-UHFFFAOYSA-N 0.000 abstract 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- QUJSFPXBUIZZAC-UHFFFAOYSA-N boric acid;ethane-1,2-diol Chemical class OCCO.OB(O)O QUJSFPXBUIZZAC-UHFFFAOYSA-N 0.000 description 2
- 230000007123 defense Effects 0.000 description 2
- 229940021013 electrolyte solution Drugs 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- KWIPUXXIFQQMKN-UHFFFAOYSA-N 2-azaniumyl-3-(4-cyanophenyl)propanoate Chemical compound OC(=O)C(N)CC1=CC=C(C#N)C=C1 KWIPUXXIFQQMKN-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 229910019142 PO4 Inorganic materials 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
- 229940090948 ammonium benzoate Drugs 0.000 description 1
- SATJMZAWJRWBRX-UHFFFAOYSA-N azane;decanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCCC([O-])=O SATJMZAWJRWBRX-UHFFFAOYSA-N 0.000 description 1
- ORKKMKUDEPWHTG-UHFFFAOYSA-N azane;nonanedioic acid Chemical compound [NH4+].[NH4+].[O-]C(=O)CCCCCCCC([O-])=O ORKKMKUDEPWHTG-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- SPZBYSKKSSLUKN-UHFFFAOYSA-N diazanium;2-butyloctanedioate Chemical compound [NH4+].[NH4+].CCCCC(C([O-])=O)CCCCCC([O-])=O SPZBYSKKSSLUKN-UHFFFAOYSA-N 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- -1 phosphate ester Chemical class 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- WYXIGTJNYDDFFH-UHFFFAOYSA-Q triazanium;borate Chemical compound [NH4+].[NH4+].[NH4+].[O-]B([O-])[O-] WYXIGTJNYDDFFH-UHFFFAOYSA-Q 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）
本光明は、電解コンデンサ用電解液に関し、特に難燃性
を改良した中高圧用の電解コンデンサ用電解液に関する
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an electrolytic solution for electrolytic capacitors, and particularly to an electrolytic solution for medium-high voltage electrolytic capacitors with improved flame retardance.
（従来の技術）
従来の中高圧用アルミ電解コンデンサに用いられる電解
液は、エチレングリコールを主溶媒とし、これにホウ酸
やホウ酸アンモニウムを溶解した成分となっている。(Prior Art) The electrolytic solution used in conventional medium-high voltage aluminum electrolytic capacitors has ethylene glycol as its main solvent, and has boric acid or ammonium borate dissolved therein as a component.
このエチレングリコール−ホウ酸系の電解液は、エステ
ル化反応によって生じる縮合水のために多量の水分を生
成し、難燃性を有している。This ethylene glycol-boric acid electrolyte produces a large amount of water due to condensed water produced by the esterification reaction, and has flame retardant properties.
（弁明が解決しようとする課題）
しかし、この従来の電解液は、１００℃よりも高い温度
で使用すると、ガスを多量に発生し、電解コンデンサに
設けられている防爆弁が作動し易く、短時間で不良とな
る欠点がある。(The problem that the defense aims to solve) However, when this conventional electrolyte is used at temperatures higher than 100°C, it generates a large amount of gas, and the explosion-proof valve installed in the electrolytic capacitor tends to operate, causing short-term It has the disadvantage of becoming defective over time.
このガス光生を防止するために、エチレングリコールに
有様酸を溶解した成分の電解液を用いることがある。し
かし、この電解液は、電解コンデンサが過電圧を印加さ
れたり、バンクした際にＲ１ずるスパークにより容易に
着火し、燃焼するという欠点がある。In order to prevent this gas photogeneration, an electrolytic solution containing a specific acid dissolved in ethylene glycol may be used. However, this electrolytic solution has the disadvantage that when an overvoltage is applied to the electrolytic capacitor or the electrolytic capacitor is banked, it is easily ignited and combusted by a spark that moves through R1.
本光明は、以上の欠点を改良し、ガス発生を抑制でき、
かつ燃焼し難い電解コンデンサ用電解液を提供すること
を目的とする。This Komei improves the above drawbacks and suppresses gas generation.
It is an object of the present invention to provide an electrolytic solution for an electrolytic capacitor that is difficult to burn.
（１題を解決するための手段）
本発明は、上記の目的を達成するために、エチレンゲリ
コールを主成分とする溶媒に、有ＩＮ酸あるいはその塩
を溶解した電解コンデンサ用電解液において、部分的に
ホウ酸およびリン酸でエステル化したポリビニルアルコ
ール（以下ポリビニルアルコール−ホウ酸、リン酸エス
テルと略言”）を溶解することを特徴とする電解コンデ
ンサ用電解液を提供するものである。(Means for Solving a Problem) In order to achieve the above object, the present invention provides an electrolytic solution for electrolytic capacitors in which an IN acid or a salt thereof is dissolved in a solvent containing ethylene gelicol as a main component. The present invention provides an electrolytic solution for an electrolytic capacitor, which is characterized in that it dissolves polyvinyl alcohol partially esterified with boric acid and phosphoric acid (hereinafter abbreviated as "polyvinyl alcohol-boric acid, phosphoric acid ester").
（作用）
エチレングリコール等に有機酸やその塩を溶解している
ために、エチレングリコール−硼酸系電解液に比較して
、エステル化反応による縮合水がほとんど生じることな
く、水和劣化を生じ難く、ガス発生が抑制される。(Function) Because organic acids and their salts are dissolved in ethylene glycol, etc., compared to ethylene glycol-boric acid electrolytes, almost no condensation water is generated due to the esterification reaction, and hydration deterioration is less likely to occur. , gas generation is suppressed.
また、ポリビニルアルコール−ホウ酸、リン酸エステル
はポリビニルアルコールの水ＭＭにホウ酸やリン酸が反
応し、ホウ酸やリン酸が架橋剤として作用しそのために
三次元化して網目構造となる。これにより、電解液は沸
点が上昇し気化し難くなり、ガス発生が抑制される。Further, polyvinyl alcohol-boric acid or phosphoric acid ester reacts with water MM of polyvinyl alcohol, and the boric acid or phosphoric acid acts as a crosslinking agent, thereby forming a three-dimensional structure and forming a network structure. As a result, the boiling point of the electrolytic solution increases, making it difficult to vaporize, and gas generation is suppressed.
ぞして架橋によって三次元結合を生じた化合物が気化し
て燃焼するには、これらの化合物の原子間の結合を切断
して低分子化合物に分解しなければならず、その切断の
ために大きなエネルギーを必要とづる。そのために、ス
パーク等が生じても、そのエネルギーの大部分はこの分
解のために費やされ、気化した物質を燃焼させ難くなる
。In order for compounds that have formed three-dimensional bonds through cross-linking to vaporize and burn, the bonds between the atoms of these compounds must be broken and decomposed into low-molecular compounds, and due to this cutting, large It requires energy. Therefore, even if a spark or the like occurs, most of the energy is spent on this decomposition, making it difficult to burn the vaporized substance.
さらに、ポリビニルアルコール−ホウ酸、リン酸エステ
ルには、熱分解によって生じる低分子化合物を炭素と水
に分解で−る炭化を生じ易くし、ガ燃性を高める作用が
ある。Furthermore, polyvinyl alcohol-boric acid and phosphoric acid ester have the effect of making it easier for low-molecular compounds produced by thermal decomposition to undergo carbonization by decomposing them into carbon and water, thereby increasing gas flammability.
なお、ポリビニルアルコール−ホウ酸、リン酸エステル
が三次元網目Ｉｎを有しているために、イオンの移動を
妨げる作用は少なく、比抵抗はほとんど増大しない。In addition, since polyvinyl alcohol-boric acid and phosphoric acid ester have a three-dimensional network In, there is little effect of hindering the movement of ions, and the specific resistance hardly increases.
また、三次元網目構造を有するこの電解液は高温度でも
電解紙により保持されるため、信頼性が高い。Furthermore, this electrolytic solution having a three-dimensional network structure is held by the electrolytic paper even at high temperatures, so it is highly reliable.
（実施例） 以下、本発明を実施例に基づいて説明する。(Example) Hereinafter, the present invention will be explained based on examples.
主溶媒としてはエチレングリコールを用い、これに、安
息香酸アンモニウムや１，６−デカンジカルボン酸アン
モニウム、アゼライン酸アンモニウム、セバシン酸アン
モニウム等を溶質とし、て溶解する。そしてこの溶媒及
び溶質からなる溶液にポリビニルアルコール−ホウ酸、
リン酸エステルを溶解する。Ethylene glycol is used as the main solvent, and ammonium benzoate, ammonium 1,6-decanedicarboxylate, ammonium azelaate, ammonium sebacate, etc. are dissolved therein as solutes. Then, polyvinyl alcohol-boric acid,
Dissolve the phosphate ester.
次に、木Ｒ明の実施例と従来例について、表の通りの成
分比の電解液として比抵抗及び火花電圧を測定した。Next, the specific resistance and spark voltage were measured for the Example and the conventional example made by Rime, using electrolytes having the component ratios shown in the table.
以下余白。Margin below.
表によれば、溶媒及び溶質に同じ物質を用いた実施例１
と従来例１、実施例２と従来例２、実施例３と従来例３
、実施例４と従来例４を各々比べると、比抵抗及び火花
電圧がほぼ同じ値を示している。According to the table, Example 1 using the same substance as solvent and solute
and Conventional Example 1, Example 2 and Conventional Example 2, Example 3 and Conventional Example 3
Comparing Example 4 and Conventional Example 4, it is found that the specific resistance and spark voltage are approximately the same.
また、実施例１と従来例１の電解液を定格２５０Ｖ、１
０．０００μＦの電解コンデンサの含浸液として用い、
実施例２〜実施例４及び従来例２〜従来例４の電解液を
定格４００■、４，７００μＦの電解液の含浸液として
用いる。そしてこれ等の電解コンデンサを各１０ケづつ
、過電圧を印加して破壊状況を調査した。試験条件は、
定格電圧２５０Ｖの電解コンデンサに対しては電圧４０
０■を印加し、定格電圧４００Ｖのそれに対しては電圧
６００Ｖを印加し、各々電流３０Ａ＠流す。In addition, the electrolytes of Example 1 and Conventional Example 1 were rated at 250 V and 1
Used as an impregnating liquid for 0.000 μF electrolytic capacitors,
The electrolytic solutions of Examples 2 to 4 and Conventional Examples 2 to 4 are used as an impregnating solution for an electrolytic solution with a rating of 400 μF and 4,700 μF. An overvoltage was applied to each of these 10 electrolytic capacitors, and the state of destruction was investigated. The test conditions are
For an electrolytic capacitor with a rated voltage of 250V, the voltage is 40V.
For the rated voltage of 400V, a voltage of 600V is applied, and a current of 30A@ is applied in each case.
結果は、試験に用いた全部の電解コンデンサのキャップ
が破壊した。そして実施例１〜実施例４の電解液を含浸
した電解コンデンサは全数白煙を発生するが、発火燃焼
はしなかった。しかし、従来例１〜従来例４の電解液を
含浸した電解コンデンサは全数が発火燃焼した。As a result, the caps of all electrolytic capacitors used in the test were destroyed. All of the electrolytic capacitors impregnated with the electrolyte solutions of Examples 1 to 4 produced white smoke, but did not ignite and burn. However, all of the electrolytic capacitors impregnated with the electrolyte solutions of Conventional Examples 1 to 4 ignited and burned.
（発明の効果）
以上の通り、本弁明によれば、ポリビニルアルコール−
ホウ酸、リン酸エステルを溶解することにより、難燃性
を向上できるとともにガス発生を抑制できる電解コンデ
ンサ用電解液が得られ、電解コンデンサの信頼性を向上
できる。(Effect of the invention) As described above, according to the present defense, polyvinyl alcohol-
By dissolving boric acid and phosphoric acid ester, an electrolytic solution for electrolytic capacitors that can improve flame retardance and suppress gas generation can be obtained, and the reliability of electrolytic capacitors can be improved.
特許出願人 日立コンデンサ株式会社Patent applicant: Hitachi Capacitor Co., Ltd.
Claims (1)
酸あるいはその塩を溶解した電解コンデンサ用電解液に
おいて、部分的にホウ酸およびリン酸でエステル化した
ポリビニルアルコールを溶解することを特徴とする電解
コンデンサ用電解液。(1) Polyvinyl alcohol partially esterified with boric acid and phosphoric acid is dissolved in an electrolytic solution for electrolytic capacitors in which an organic acid or its salt is dissolved in a solvent mainly composed of ethylene glycol. Electrolyte for electrolytic capacitors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2131752A JPH0748460B2 (en) | 1990-05-22 | 1990-05-22 | Electrolytic solution for electrolytic capacitors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2131752A JPH0748460B2 (en) | 1990-05-22 | 1990-05-22 | Electrolytic solution for electrolytic capacitors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0426107A true JPH0426107A (en) | 1992-01-29 |
| JPH0748460B2 JPH0748460B2 (en) | 1995-05-24 |
Family
ID=15065363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2131752A Expired - Lifetime JPH0748460B2 (en) | 1990-05-22 | 1990-05-22 | Electrolytic solution for electrolytic capacitors |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0748460B2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03152918A (en) * | 1989-11-09 | 1991-06-28 | Hiroyoshi Shirai | Electrolyte for electrolytic capacitor |
-
1990
- 1990-05-22 JP JP2131752A patent/JPH0748460B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03152918A (en) * | 1989-11-09 | 1991-06-28 | Hiroyoshi Shirai | Electrolyte for electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0748460B2 (en) | 1995-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2611262B2 (en) | Flame retardant electrolytic capacitor | |
| JPS62145715A (en) | Electrolyte for electrolytic capacitor | |
| JPH0426107A (en) | Electrolyte for electrolytic capacitor | |
| US3403304A (en) | Electrolytic capacitor with an electrolyte of an ammonium organoboron compound | |
| JPH06168850A (en) | Electrolyte for electrolytic capacitor | |
| JPH03225906A (en) | Electrolyte for electrolytic capacitor | |
| JPH0797541B2 (en) | Electrolytic solution for electrolytic capacitors | |
| FR2976734A1 (en) | SPECIFIC ELECTROLYTIC COMPOSITION FOR ENERGY STORAGE DEVICE | |
| JPH0513276A (en) | Electrolyte for driving electrolytic capacitor | |
| JPWO2004051679A1 (en) | Flame retardant electrolyte electrolytic capacitor | |
| JP2000252168A (en) | Electrochemical capacitor | |
| JPH0461488B2 (en) | ||
| JPH07106207A (en) | Electrolytic capacitor driving electrolyte | |
| JPH04286110A (en) | Electrolytic solution for electrolytic capacitor | |
| JPH06314636A (en) | Electrolyte for electrolytic capacitor | |
| JPH03180014A (en) | Electrolyte for electrolytic capacitor | |
| JPS62254415A (en) | Electrolyte for electrolytic capacitor | |
| JPH09251932A (en) | Electrolyte soln. for driving electrolytic capacitor | |
| JP2961435B2 (en) | Aluminum electrolytic capacitors | |
| JP2773446B2 (en) | Electrolyte for electrolytic capacitors | |
| JP3281945B2 (en) | Electrolyte for driving electrolytic capacitors | |
| JPH0748459B2 (en) | Electrolytic solution for electrolytic capacitors | |
| JPH04286109A (en) | Electrolytic solution for electrolytic capacitor | |
| JPH0719730B2 (en) | Electrolytic solution for electrolytic capacitors | |
| JP2607255B2 (en) | Electrolyte for driving electrolytic capacitors |