CN101404209B - Electrolyte for electrolytic capacitor - Google Patents
Electrolyte for electrolytic capacitor Download PDFInfo
- Publication number
- CN101404209B CN101404209B CN2008101980162A CN200810198016A CN101404209B CN 101404209 B CN101404209 B CN 101404209B CN 2008101980162 A CN2008101980162 A CN 2008101980162A CN 200810198016 A CN200810198016 A CN 200810198016A CN 101404209 B CN101404209 B CN 101404209B
- Authority
- CN
- China
- Prior art keywords
- acid
- electrolyte
- electrolytic capacitor
- additive
- solvent
- 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
Abstract
The invention relates to the field of electrolyte technique, in particular to an electrolyte used for an electrolytic capacitor. The invention adds dimer acid and salts of the dimmer acid in the original electrolyte as main solute; the dimmer acid is a compound which is formed by octadecadienoic acid in virtue of mutual polymerization of molecules and has extremely long molecule chain; as the dimer acid is used as the main solute and the long molecule chain of the dimer acid can greatly improve the flash voltage of the electrolyte used for the aluminium electrolyte capacitor, thus the electrolyte can solve the problems caused by the aluminium electrolytic container of more than 500V owning to lack of voltage withstanding.
Description
Technical field:
The present invention relates to the electrolyte technical field, particularly a kind of electrolyte for electrolytic capacitor.
Background technology:
In recent years, along with the high speed development of big screen panel TV, power supply, consumer electronic product, high-speed railway etc., and then the miniaturization and the high-pressure trend of aluminium electrolytic capacitor have been promoted.Working voltage will be further enhanced in the demand of the aluminium electrolytic capacitor of 500V～600V even higher working voltage.
Electrolyte is the actual negative electrode of aluminium electrolytic capacitor, the important function of play oxonium ion is provided, repairing anode oxide film, and therefore high performance electrolyte is for guaranteeing that aluminium electrolytic capacitor plays crucial effects.Yet, the situation of withstand voltage deficiency can appear during the aluminium electrolytic capacitor of existing electrolyte more than being applied to 500V.This solute with existing electrolyte is relevant, the solute of electrolyte has conclusive effect to the electrolyte flash over voltage, the existing employed solute of electrolyte is as decanedioic acid, azelaic acid, 12 diacid, 13 bisgallic acids, adipic acid etc. and ammonium salt and boric acid or ammonium pentaborate, these solutes are because chain is short, and then withstand voltage deficiency can appear in the aluminium electrolytic capacitor that is applied to more than the 500V, aluminium electrolytic capacitor in use is easy to cause puncture, and causes aluminium electrolytic capacitor to lose efficacy.
Summary of the invention:
The objective of the invention is to provides high pressure resistant electrolyte for electrolytic capacitor at the deficiencies in the prior art.
For achieving the above object, the present invention adopts following technical scheme: be made up of following raw materials by weight percent:
Solvent 60～96%
Main solute 2～20%
Secondary solute 1～5%
Optimize additive 0.1～5%,
Described solvent comprises: alcohols solvent, esters solvent and ether solvent;
Wherein alcohols solvent comprises following one or more: ethylene glycol, n-butanol, phenmethylol, diglycol, n-octyl alcohol, polyethylene glycol;
Wherein esters solvent comprises following one or more: γ-butyrolactone, δ-valerolactone, butyl acetate;
Wherein ether solvent comprises following one or more: EGME, ethylene glycol ethyl ether, butyl glycol ether;
Described main solute is: dimeric dibasic acid and salt thereof;
Described secondary solute comprises 18 following organic carboxyl acids of carbon and ammonium salt thereof, and decanedioic acid, azelaic acid, 12 diacid, 13 bisgallic acids, adipic acid, benzoic acid are arranged; Also comprise inorganic acid and ammonium salt thereof;
Described optimization additive comprises disappear hydrogen additive and methanol additive;
The hydrogen additive that disappears has nitro compound and salt thereof, nitro compound comprise o-nitrophenol, paranitrobenzoic acid, p-nitrophenyl methyl alcohol, nitro-acetophenone one or more;
The methanol additive has following one or more: phosphotungstic acid, phosphoric acid, phosphorous acid, ortho phosphorous acid, phosphoric acid and ammonium salt thereof.
Advantage of the present invention and good effect: dimeric dibasic acid is by the intermolecular compound that is polymerized mutually by octadecadienoic acid, it has very long strand, the present invention is owing to adopted dimeric dibasic acid as main solute, utilize the molecular chain length of dimeric dibasic acid and can bring very big raising with the flash over voltage of electrolyte, thereby solved the above aluminium electrolytic capacitor of 500V because the problem that withstand voltage deficiency is brought to aluminium electrolytic capacitor.
Embodiment:
Can describe the present invention in more detail by embodiment, and contrast with prior art, below be that the example of prior art and the prescription of the embodiment of the invention are formed, as shown in table 1:
Table 1
Preparation uses each routine raw material in the table 1 to form the aluminium electrolytic capacitor of formulated electrolyte respectively, and each makes 10, and each all supply to do the life-span and tests.The specification of aluminium electrolytic capacitor is: 500WV, and 150 μ F, Φ 30 * 40, and add the 500V load under 105 ℃.Result of the test is as shown in table 2:
Table 2
From the data of table 2 as can be seen, adopt dimeric dibasic acid can make the flash over voltage of electrolyte be greatly improved, thereby solved the problem of the resistance to pressure deficiency of the above aluminium electrolytic capacitor of 500V as main solute.
The above only is a better embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, feature and principle change or modify, is included in the patent claim of the present invention.
Claims (4)
1. electrolyte for electrolytic capacitor is characterized in that: be made up of following raw materials by weight percent:
Solvent 60%～96%
Main solute 2%～20%
Secondary solute 1%～5%
Optimize additive 0.1%～5%
Wherein each constituent content percentage sum equals 100%;
Described solvent comprises: alcohols solvent, esters solvent and ether solvent;
Wherein alcohols solvent comprises following one or more: ethylene glycol, n-butanol, phenmethylol, diglycol, n-octyl alcohol, polyethylene glycol;
Wherein esters solvent comprises following one or more: gamma-butyrolacton, δ-Wu Neizhi, butyl acetate;
Wherein ether solvent comprises following one or more: EGME, ethylene glycol ethyl ether, butyl glycol ether;
Described main solute is: dimeric dibasic acid and salt thereof;
Described secondary solute comprises 18 following organic carboxyl acids of carbon and ammonium salt thereof, also comprises inorganic acid and ammonium salt thereof;
Described optimization additive comprises disappear hydrogen additive and methanol additive;
The hydrogen additive that disappears has nitro compound and salt thereof; Nitro compound comprise o-nitrophenol, paranitrobenzoic acid, p-nitrophenyl methyl alcohol, nitro-acetophenone one or more;
The methanol additive has following one or more: phosphotungstic acid, phosphoric acid, phosphorous acid, ortho phosphorous acid, phosphoric acid and ammonium salt thereof.
2. electrolyte for electrolytic capacitor according to claim 1 is characterized in that: be made up of following raw materials by weight percent:
Solvent 65%～95%
Main solute 2%～15%
Secondary solute 2%～5%
Optimize additive 0.5%～3%
Wherein each constituent content percentage sum equals 100%.
3. electrolyte for electrolytic capacitor according to claim 1 is characterized in that: be made up of following raw materials by weight percent:
Ethylene glycol 50%～85%
Polyethylene glycol 10%～30%
Butyl glycol ether 1%～3%
Dimeric dibasic acid 3%～13%
Ammonium sebacate 1%～1.5%
Ammonium azelate 1%～1.5%
Ammonium hypophosphite 0.1%～0.2%
Paranitrobenzoic acid 0.5%～0.8%
Wherein each constituent content percentage sum equals 100%.
4. electrolyte for electrolytic capacitor according to claim 1 is characterized in that: described secondary solute has decanedioic acid, azelaic acid, 12 diacid, 13 bisgallic acids, adipic acid, benzoic acid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101980162A CN101404209B (en) | 2008-08-27 | 2008-08-27 | Electrolyte for electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101980162A CN101404209B (en) | 2008-08-27 | 2008-08-27 | Electrolyte for electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101404209A CN101404209A (en) | 2009-04-08 |
| CN101404209B true CN101404209B (en) | 2011-01-26 |
Family
ID=40538177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101980162A Expired - Fee Related CN101404209B (en) | 2008-08-27 | 2008-08-27 | Electrolyte for electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101404209B (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101556867B (en) * | 2009-05-20 | 2011-11-09 | 广东风华高新科技股份有限公司 | Electrolysis solution and preparation method thereof as well as preparation method for obtained aluminum capacitor |
| KR101147240B1 (en) | 2009-11-10 | 2012-05-21 | 삼성에스디아이 주식회사 | Rechargeable lithium battery |
| CN101866752B (en) * | 2010-06-23 | 2012-02-01 | 深圳清华大学研究院 | Electrolyte for driving ultrahigh voltage large-sized aluminium electrolytic capacitor and solute thereof |
| CN102176379B (en) * | 2010-12-24 | 2012-11-21 | 东莞宏强电子有限公司 | Ternary mixed solvent with high boiling point and low freezing point and application thereof |
| CN104240956A (en) * | 2013-06-06 | 2014-12-24 | 上海洪微电子科技有限公司 | Working electrolyte for ultrahigh-voltage aluminium electrolytic capacitor and manufacturing method thereof |
| CN103337366A (en) * | 2013-06-06 | 2013-10-02 | 上海洪微电子科技有限公司 | Flash voltage boosting agent used for capacitor working electrolyte and preparation method of flash voltage boosting agent |
| CN103794369B (en) * | 2014-02-25 | 2018-07-17 | 上海洪微电子科技有限公司 | A kind of 700V range high voltage aluminum electrolysis capacitor working electrolytes |
| CN103811183B (en) * | 2014-02-25 | 2018-05-11 | 上海洪微电子科技有限公司 | A kind of 630V range high voltage aluminum electrolysis capacitor working electrolytes and its manufacture method |
| CN105280385B (en) * | 2014-06-11 | 2019-05-21 | 东莞市东阳光电容器有限公司 | A kind of slender type high-pressure aluminum electrolytic capacitor Working electrolyte |
| CN106252079A (en) * | 2016-08-31 | 2016-12-21 | 湖南艾华集团股份有限公司 | A kind of electrolyte of 700V high-pressure aluminum electrolytic capacitor |
| CN108570127B (en) * | 2017-03-07 | 2021-06-08 | 东莞东阳光科研发有限公司 | High-molecular polymer and application thereof in electrolyte of aluminum electrolytic capacitor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050094352A1 (en) * | 2001-12-28 | 2005-05-05 | Akihito Komatsu | Electrolytic capacitor and electrolitic solution for driving electrolytic capacitor |
| CN1624833A (en) * | 2003-12-05 | 2005-06-08 | 广东风华高新科技集团有限公司 | Electrolyte for electrolytic condenser and capacitor using the electrolyte |
-
2008
- 2008-08-27 CN CN2008101980162A patent/CN101404209B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050094352A1 (en) * | 2001-12-28 | 2005-05-05 | Akihito Komatsu | Electrolytic capacitor and electrolitic solution for driving electrolytic capacitor |
| CN1624833A (en) * | 2003-12-05 | 2005-06-08 | 广东风华高新科技集团有限公司 | Electrolyte for electrolytic condenser and capacitor using the electrolyte |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101404209A (en) | 2009-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101404209B (en) | Electrolyte for electrolytic capacitor | |
| CN101599367B (en) | 600V extra-high voltage aluminum electrolyte capacitor working electrolyte and preparation and application thereof | |
| CN103839682B (en) | 600V working electrolyte for aluminium electrolytic capacitor and its application | |
| CN101866752B (en) | Electrolyte for driving ultrahigh voltage large-sized aluminium electrolytic capacitor and solute thereof | |
| CN1744247B (en) | Aluminium electrolytic capacitor working electrolyte and capacitor obtained thereof | |
| CN101004976B (en) | Electrolyte of electrolytic capacitor | |
| CN105304332B (en) | A kind of 650V working electrolyte for aluminium electrolytic capacitor | |
| TWI575546B (en) | Aluminum Electrolytic Capacitors Electrolyte and Aluminum Electrolytic Capacitors | |
| CN103632851B (en) | High conductivity boron series-free working electrolyte and preparation method thereof | |
| CN106531443A (en) | 650V high-voltage aluminium electrolytic capacitor working electrolyte and preparation method thereof | |
| CN106252079A (en) | A kind of electrolyte of 700V high-pressure aluminum electrolytic capacitor | |
| CN102969161A (en) | Electrolyte for driving of aluminum electrolytic capacitor and preparation method of main solute of electrolyte | |
| CN103794369A (en) | Working electrolyte of 700 V high-voltage aluminum electrolytic capacitor and preparation method of working electrolyte | |
| CN105280385A (en) | Working electrolyte for slender-type high-voltage aluminum electrolyte capacitors | |
| CN103811183B (en) | A kind of 630V range high voltage aluminum electrolysis capacitor working electrolytes and its manufacture method | |
| CN109903994B (en) | Electrolyte for high-voltage high-conductivity aluminum electrolytic capacitor | |
| CN102074357A (en) | Preparation method, product and application of electrolyte for high voltage aluminum electrolytic capacitor | |
| CN105140035A (en) | Working electrolytic solution of aluminum electrolytic capacitor with resistance to high voltage and wide-range temperature and manufacturing method thereof | |
| CN202758754U (en) | Boron-free high pressure aluminum electrolytic capacitor | |
| US9111685B2 (en) | Electrolytic solution for electrolytic capacitor | |
| CN107039183A (en) | Semi-solid preparation high-pressure aluminum electrolytic capacitor working electrolyte | |
| CN110931256A (en) | Electrolyte for high-voltage-resistant aluminum electrolytic capacitor and preparation method thereof | |
| CN105140033B (en) | A kind of medium-high voltage aluminum electrolytic capacitor Working electrolyte and preparation method thereof | |
| CN103295788A (en) | Working electrolytic solution with high water-containing system for high-frequency low-impedance aluminum electrolytic capacitor and preparation method of working electrolytic solution | |
| CN110808169A (en) | Electrolyte for 450-plus-500V aluminum electrolytic capacitor and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20200827 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |