JPH0457089B2 - - Google Patents
Info
- Publication number
- JPH0457089B2 JPH0457089B2 JP20404285A JP20404285A JPH0457089B2 JP H0457089 B2 JPH0457089 B2 JP H0457089B2 JP 20404285 A JP20404285 A JP 20404285A JP 20404285 A JP20404285 A JP 20404285A JP H0457089 B2 JPH0457089 B2 JP H0457089B2
- Authority
- JP
- Japan
- Prior art keywords
- acid
- salt
- paste
- ethylene glycol
- aluminum electrolytic
- 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
Links
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 239000003990 capacitor Substances 0.000 claims description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052782 aluminium Inorganic materials 0.000 claims description 9
- 150000003839 salts Chemical class 0.000 claims description 8
- LWBHHRRTOZQPDM-UHFFFAOYSA-N undecanedioic acid Chemical compound OC(=O)CCCCCCCCCC(O)=O LWBHHRRTOZQPDM-UHFFFAOYSA-N 0.000 claims description 8
- 239000002904 solvent Substances 0.000 claims description 5
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 4
- 239000004327 boric acid Substances 0.000 claims description 4
- DXNCZXXFRKPEPY-UHFFFAOYSA-N tridecanedioic acid Chemical compound OC(=O)CCCCCCCCCCCC(O)=O DXNCZXXFRKPEPY-UHFFFAOYSA-N 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 claims 1
- 239000008151 electrolyte solution Substances 0.000 description 4
- 150000007519 polyprotic acids Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- QUJSFPXBUIZZAC-UHFFFAOYSA-N boric acid;ethane-1,2-diol Chemical compound OCCO.OB(O)O QUJSFPXBUIZZAC-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000203 mixture Substances 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
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
産業上の利用分野
本発明はアルミニウム電解コンデンサ駆動用電
解液に係り、特にエチレングリコールを主体とす
る溶媒に高級多塩基酸またはその塩を主たる溶質
とした電解液の改良に関するものである。
従来の技術
従来の中高圧用アルミニウム電解コンデンサ駆
動用電解液（以下ペーストという）にはエチレン
グリコールに硼酸あるいは硼酸アンモニウムを溶
解したいわゆるエチレングリコール−硼酸系のペ
ーストが使用されていたが、使用温度範囲の拡大
とりわけ上限使用温度を高くするため、高級多塩
基酸を使用したペーストが提案されている。
発明が解決しようとする問題点
エチレングリコールを主体とした溶媒に高級二
塩基酸としてウンデカン二酸、トリデカン二酸あ
るいはその塩を主溶質として構成したペーストを
含浸したコンデンサではアルミニウムに対する高
級二塩基酸の錯体形成能が強いため、静電容量の
低下をもたらす場合があることが確認されてい
る。
問題点を解決するための手段
本発明は、上述の問題点を解消したもので、エ
チレングリコールを主体とした溶媒にウンデカン
二酸、トリデカン二酸あるいはその塩を主溶質と
し、硼酸またはその塩の何れかを添加して溶解さ
せたことを特徴とするアルミニウム電解コンデン
サ駆動用電解液である。
作 用
本発明においてはエチレングリコールを主体と
した溶媒にウンデカン二酸、トリデカン二酸ある
いはその塩を主溶質としたペーストから得られる
優れた特性を損なうことなく、アルミニウムに対
する錯体形成能を阻止して、使用温度範囲の広い
ペーストが得られると共に、これに硼酸またはそ
の塩の何れかを添加して溶解したものをアルミニ
ウム電解コンデンサのペーストに用いることによ
り静電容量の減少を大幅に低減せしめる作用を有
する。
実施例
以下本発明の具体的実施例について説明する。
第１表は、本発明の実施例と従来例についてペ
ーストの組成を変えて比抵抗および火花電圧につ
いて測定した結果を示す。
INDUSTRIAL APPLICATION FIELD The present invention relates to an electrolytic solution for driving an aluminum electrolytic capacitor, and more particularly to an improvement in an electrolytic solution containing a solvent mainly composed of ethylene glycol and a higher polybasic acid or a salt thereof as a main solute. Conventional technology A so-called ethylene glycol-boric acid paste, in which boric acid or ammonium borate is dissolved in ethylene glycol, has been used as the electrolytic solution (hereinafter referred to as paste) for driving medium-to-high voltage aluminum electrolytic capacitors. Pastes using higher polybasic acids have been proposed in order to increase the upper limit of usage temperature. Problems to be Solved by the Invention In a capacitor impregnated with a paste containing undecanedioic acid, tridecanedioic acid, or a salt thereof as the main solute in a solvent mainly composed of ethylene glycol, the high dibasic acid is It has been confirmed that due to its strong ability to form complexes, it may cause a decrease in capacitance. Means for Solving the Problems The present invention solves the above-mentioned problems by using undecanedioic acid, tridecanedioic acid, or a salt thereof as a main solute in a solvent mainly composed of ethylene glycol, and using boric acid or a salt thereof as a main solute. This is an electrolytic solution for driving an aluminum electrolytic capacitor, which is characterized by adding and dissolving either of them. Effect In the present invention, the ability to form a complex with aluminum is inhibited without impairing the excellent properties obtained from a paste containing undecanedioic acid, tridecanedioic acid, or a salt thereof as a main solute in a solvent mainly composed of ethylene glycol. In addition to obtaining a paste that can be used over a wide temperature range, by adding and dissolving either boric acid or its salt and using it as a paste for aluminum electrolytic capacitors, it has the effect of significantly reducing the decrease in capacitance. have Examples Specific examples of the present invention will be described below. Table 1 shows the results of measuring specific resistance and spark voltage for the examples of the present invention and conventional examples, with different paste compositions.
【表】
第２表は、第１表の従来品（試料番号１、２）
のペーストと本発明の実施例（試料番号３、４）
のペーストを使つたアルミニウム電解コンデンサ
（定格400WV、220μF）を各々450Vでエージング
した時における不良数および105℃2000時間の高
温負荷試験を行つた結果を示し、各々試料数20個
の平均値を示す。本発明の実施例のペーストを使
つたコンデンサ試料は、全て高温負荷試験におけ
る容量変化率、tanδ、漏れ電流、外観の全ての特
性に対し改善効果が得られている。[Table] Table 2 shows the conventional products (sample numbers 1 and 2) in Table 1.
paste and examples of the present invention (sample numbers 3 and 4)
Shows the number of defects when aluminum electrolytic capacitors (rated 400WV, 220μF) using the paste were aged at 450V and the results of a high temperature load test at 105℃ for 2000 hours, and the average value of 20 samples for each is shown. . All of the capacitor samples using the pastes of the examples of the present invention showed improvements in all characteristics including capacitance change rate, tan δ, leakage current, and appearance in high-temperature load tests.
【表】
発明の効果
以上のように本発明のペーストをアルミニウム
電解コンデンサに使用することにより従来の欠点
であつた容量減少を防止し、かつ信頼性の高い中
高圧用アルミニウム電解コンデンサが得られ、工
業的ならびに実用的価値の大なるものである。[Table] Effects of the Invention As described above, by using the paste of the present invention in an aluminum electrolytic capacitor, a decrease in capacity, which was a drawback of the conventional capacitor, can be prevented, and a highly reliable aluminum electrolytic capacitor for medium and high voltages can be obtained. It has great industrial and practical value.
Claims (1)
デカン二酸、トリデカン二酸あるいはその塩の少
なくとも一種を主溶質とし、硼酸またはその塩の
何れかを添加して溶解したことを特徴とするアル
ミニウム電解コンデンサ駆動用電解液。1. For driving an aluminum electrolytic capacitor, characterized in that the main solute is at least one of undecanedioic acid, tridecanedioic acid, or a salt thereof, and either boric acid or a salt thereof is added and dissolved in a solvent mainly composed of ethylene glycol. Electrolyte.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20404285A JPS6263416A (en) | 1985-09-13 | 1985-09-13 | Electrolyte for driving aluminum electrolytic condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20404285A JPS6263416A (en) | 1985-09-13 | 1985-09-13 | Electrolyte for driving aluminum electrolytic condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6263416A JPS6263416A (en) | 1987-03-20 |
| JPH0457089B2 true JPH0457089B2 (en) | 1992-09-10 |
Family
ID=16483790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20404285A Granted JPS6263416A (en) | 1985-09-13 | 1985-09-13 | Electrolyte for driving aluminum electrolytic condenser |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6263416A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101960548B1 (en) | 2010-03-26 | 2019-03-20 | 닛뽄 케미콘 가부시끼가이샤 | Electrolyte for electrolytic capacitor |
-
1985
- 1985-09-13 JP JP20404285A patent/JPS6263416A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6263416A (en) | 1987-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |