JPH03209810A - Electrolyte for driving electrolytic capacitor - Google Patents
Electrolyte for driving electrolytic capacitorInfo
- Publication number
- JPH03209810A JPH03209810A JP351590A JP351590A JPH03209810A JP H03209810 A JPH03209810 A JP H03209810A JP 351590 A JP351590 A JP 351590A JP 351590 A JP351590 A JP 351590A JP H03209810 A JPH03209810 A JP H03209810A
- Authority
- JP
- Japan
- Prior art keywords
- electrolytic capacitor
- organic
- electrolyte
- polar solvent
- salt
- 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 abstract description 13
- 239000003792 electrolyte Substances 0.000 title abstract description 6
- 239000002798 polar solvent Substances 0.000 claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 239000008151 electrolyte solution Substances 0.000 claims description 10
- -1 alkyl phosphate ester Chemical class 0.000 claims description 8
- 229910019142 PO4 Inorganic materials 0.000 claims description 7
- 239000010452 phosphate Substances 0.000 claims description 7
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 4
- 239000002253 acid Substances 0.000 abstract description 8
- 150000002148 esters Chemical class 0.000 abstract description 5
- 230000002542 deteriorative effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 239000005711 Benzoic acid Substances 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
- 235000011037 adipic acid Nutrition 0.000 description 2
- 239000001361 adipic acid Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 150000003863 ammonium salts Chemical class 0.000 description 2
- 235000010233 benzoic acid Nutrition 0.000 description 2
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 2
- 239000011976 maleic acid Substances 0.000 description 2
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- FBPFZTCFMRRESA-KVTDHHQDSA-N D-Mannitol Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-KVTDHHQDSA-N 0.000 description 1
- JYFHYPJRHGVZDY-UHFFFAOYSA-N Dibutyl phosphate Chemical compound CCCCOP(O)(=O)OCCCC JYFHYPJRHGVZDY-UHFFFAOYSA-N 0.000 description 1
- 229930195725 Mannitol Natural products 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- HNEGQIOMVPPMNR-IHWYPQMZSA-N citraconic acid Chemical compound OC(=O)C(/C)=C\C(O)=O HNEGQIOMVPPMNR-IHWYPQMZSA-N 0.000 description 1
- 229940018557 citraconic acid Drugs 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 125000004177 diethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 1
- UCQFCFPECQILOL-UHFFFAOYSA-N diethyl hydrogen phosphate Chemical compound CCOP(O)(=O)OCC UCQFCFPECQILOL-UHFFFAOYSA-N 0.000 description 1
- HUDSKKNIXMSHSZ-UHFFFAOYSA-N dihexyl hydrogen phosphate Chemical compound CCCCCCOP(O)(=O)OCCCCCC HUDSKKNIXMSHSZ-UHFFFAOYSA-N 0.000 description 1
- ZJXZSIYSNXKHEA-UHFFFAOYSA-N ethyl dihydrogen phosphate Chemical compound CCOP(O)(O)=O ZJXZSIYSNXKHEA-UHFFFAOYSA-N 0.000 description 1
- PHNWGDTYCJFUGZ-UHFFFAOYSA-L hexyl phosphate Chemical compound CCCCCCOP([O-])([O-])=O PHNWGDTYCJFUGZ-UHFFFAOYSA-L 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 239000000594 mannitol Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は電解コンデンサの駆動用電解液、特にコンデン
サの特性を実質的に低下させることなく、火花電圧を向
上せしめたアルミ電解コンデンサの駆動用電解液に係る
ものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an electrolytic solution for driving an electrolytic capacitor, particularly an electrolytic solution for driving an aluminum electrolytic capacitor that improves spark voltage without substantially deteriorating the characteristics of the capacitor. This relates to electrolytes.
（従来の技術）
エチレングリコールやγ−ブチロラクトン等の有機極性
溶媒に安息香酸やアジピン酸、マレイン酸等の有機カル
ボン酸或はこれらのアンモニウム塩等を溶解して成る溶
液は、アルミ電解コンデンサの駆動用電解液として知ら
れている。(Prior art) A solution prepared by dissolving an organic carboxylic acid such as benzoic acid, adipic acid, or maleic acid, or an ammonium salt thereof in an organic polar solvent such as ethylene glycol or γ-butyrolactone is used to drive an aluminum electrolytic capacitor. It is known as an electrolyte for use.
又、これらに対して硼酸やマンニット等の添加剤を添加
することにより所謂火花電圧を向上せしめることにより
、より高電圧製品への適用をねらったものも提案され、
又一部は実用に供されている。Furthermore, by adding additives such as boric acid and mannitol to these products, the so-called spark voltage has been improved, thereby making it possible to apply them to higher voltage products.
Some of them are also put into practical use.
（発明の解決しようとする課題）
しかしながら、従来における火花電圧の向上に用いられ
る添加剤は、確かにその目的の為には効果があるが、コ
ンデンの最重要特性の一つである電導度が一般に阻害さ
れる欠点を有している。(Problem to be Solved by the Invention) However, although additives conventionally used to improve spark voltage are certainly effective for that purpose, their conductivity, which is one of the most important properties of condensate, It has drawbacks that are generally inhibited.
（課題を解決する為の手段）
本発明者は、従来法が有する欠点を排除し、電導度を実
質的に阻害することなく、火花電圧を向上せしめること
を目的として種々研究、検討した結果、電解液中への添
加剤としてアルキルリン酸エステルを用いることにより
、前記目的を達成し得ることを見出した。(Means for Solving the Problems) As a result of various studies and examinations, the present inventor has conducted various studies and examinations with the aim of eliminating the drawbacks of conventional methods and improving the spark voltage without substantially impairing the conductivity. It has been found that the above object can be achieved by using an alkyl phosphate ester as an additive in the electrolyte.
かくして本発明は、有機極性溶媒に、有機カルボン酸又
はその塩と、アルキリン酸エステルを溶解して成る電解
コンデンサの駆動用電解液を提供するにある。本発明に
おいて用いられる有機極性溶媒としては、例えばエチレ
ングリコールやγ−プチロラクトン等が挙げらる。Thus, the present invention provides an electrolytic solution for driving an electrolytic capacitor, which is formed by dissolving an organic carboxylic acid or its salt and an alkylic acid ester in an organic polar solvent. Examples of the organic polar solvent used in the present invention include ethylene glycol and γ-butyrolactone.
又、有機カルボン酸としては、例えば安息香酸、アジピ
ン酸、Ｏ−フタル酸、マレイン酸、シトラコン酸等が挙
げられ、これらの塩としては、例えばアンモニウム塩、
アミン塩等が挙げられる。Examples of organic carboxylic acids include benzoic acid, adipic acid, O-phthalic acid, maleic acid, and citraconic acid. Examples of salts thereof include ammonium salts,
Examples include amine salts.
又、アルキルリン酸エステルとしては、そのアルキル基
が炭素数２〜８程度のものが好ましく、例えば、リン酸
エチル、リン酸ブチル、リン酸ヘキシル、リン酸ジエチ
ル、リン酸ジブチル、リン酸ジヘキシル、ビロリン酸ジ
エチル、ビロリン酸ジブチル等が挙げられる。Further, the alkyl phosphate ester preferably has an alkyl group having about 2 to 8 carbon atoms, such as ethyl phosphate, butyl phosphate, hexyl phosphate, diethyl phosphate, dibutyl phosphate, dihexyl phosphate, Examples include diethyl birophosphate and dibutyl birophosphate.
本発明において用いられる有機極性溶媒と有機カルボン
酸やその塩、及びアルキルリン酸エステルの使用割合は
、厳密には、夫々用いられる物質により多少異なるがア
ルキルリン酸エステルの添加量としては０．１〜５重量
％を採用するのが適当である。Strictly speaking, the ratio of the organic polar solvent, organic carboxylic acid or its salt, and alkyl phosphate used in the present invention varies depending on the substances used, but the amount of alkyl phosphate added is 0.1 It is appropriate to employ up to 5% by weight.
これらのうち、アルキルリン酸エステルの使用量が前記
範囲に満たない場合にはその添加効果が不十分であり、
逆に前記範囲を超える場合には、最早や本発明の目的で
ある添加効果をそれ以上得られないのみならず、電解液
としての特性を阻害する虞れがある為好ましくない。そ
してこれら範囲のうち０．５〜２重量％を採用する場合
には何んらの不都合が生ぜず、十分な添加効果が得られ
るので特に好ましい。Among these, if the amount of alkyl phosphate used is less than the above range, the effect of its addition will be insufficient,
On the other hand, if the amount exceeds the above range, it is not preferable because not only the added effect which is the objective of the present invention cannot be obtained any more, but also the properties as an electrolytic solution may be impaired. It is particularly preferable to use 0.5 to 2% by weight within these ranges, since no inconvenience will occur and a sufficient addition effect can be obtained.
（実施例）
各電解液組成とこれらの４０℃における電導度及び８５
°Ｃにおける火花電圧とを第１表に示した。(Example) Each electrolytic solution composition and its conductivity at 40°C and 85
The spark voltage in °C is shown in Table 1.
第
表
次に第１表に示した電解液を用いて電解コンデンサを作
製し同電解コンデンサなエージングしたときの結果につ
いて第２表に示す。Table 2 Table 2 shows the results when an electrolytic capacitor was manufactured using the electrolytic solution shown in Table 1 and the same electrolytic capacitor was aged.
第 ２ 表
（効果）
以上のように本発明の電解コンデンサ駆動用電解液は電
解液の特性を損うことなくより高い電圧のコンデンサに
適用できるものである。Table 2 (Effects) As described above, the electrolytic solution for driving an electrolytic capacitor of the present invention can be applied to a higher voltage capacitor without impairing the characteristics of the electrolytic solution.
Claims (2)
ルキルリン酸エステルを溶解してなる電解コンデンサの
駆動用電解液。1. An electrolytic solution for driving an electrolytic capacitor, which is obtained by dissolving an organic carboxylic acid or its salt and an alkyl phosphate ester in an organic polar solvent.
れた請求項（１）の電解液。2. The electrolytic solution according to claim 1, wherein 0.1 to 5% by weight of the alkyl phosphate ester is dissolved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP351590A JPH03209810A (en) | 1990-01-12 | 1990-01-12 | Electrolyte for driving electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP351590A JPH03209810A (en) | 1990-01-12 | 1990-01-12 | Electrolyte for driving electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03209810A true JPH03209810A (en) | 1991-09-12 |
Family
ID=11559506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP351590A Pending JPH03209810A (en) | 1990-01-12 | 1990-01-12 | Electrolyte for driving electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03209810A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0543311A2 (en) | 1991-11-19 | 1993-05-26 | Nippon Chemi-Con Corporation | Electrolytic solution for electrolytic capacitor |
| JPH07192975A (en) * | 1992-01-28 | 1995-07-28 | Nichicon Corp | Electrolytic solution of electrolytic capacitor |
| US7163643B2 (en) | 2003-06-26 | 2007-01-16 | Matsushita Electric Industrial Co., Ltd. | Driving electrolyte and electrolytic capacitor using the same |
-
1990
- 1990-01-12 JP JP351590A patent/JPH03209810A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0543311A2 (en) | 1991-11-19 | 1993-05-26 | Nippon Chemi-Con Corporation | Electrolytic solution for electrolytic capacitor |
| US5338472A (en) * | 1991-11-19 | 1994-08-16 | Nippon Chemi-Con Corporation | Electrolytic solution for electrolytic capacitor |
| JPH07192975A (en) * | 1992-01-28 | 1995-07-28 | Nichicon Corp | Electrolytic solution of electrolytic capacitor |
| US7163643B2 (en) | 2003-06-26 | 2007-01-16 | Matsushita Electric Industrial Co., Ltd. | Driving electrolyte and electrolytic capacitor using the same |
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