CN103928234A - Electrolyte for aluminum electrolytic capacitor - Google Patents
Electrolyte for aluminum electrolytic capacitor Download PDFInfo
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- CN103928234A CN103928234A CN201410175868.5A CN201410175868A CN103928234A CN 103928234 A CN103928234 A CN 103928234A CN 201410175868 A CN201410175868 A CN 201410175868A CN 103928234 A CN103928234 A CN 103928234A
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- electrolytic capacitor
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Abstract
The invention relates to an electrolyte for an aluminum electrolytic capacitor. The electrolyte for the aluminum electrolytic capacitor is prepared from 10%-15% of a main electrolyte, 5%-10% of an auxiliary electrolyte, 65%-73% of a solvent, 10%-20% of a sparking voltage increasing agent, 0.1%-1% of a waterproof mixture and 0.1%-1% of a hydrogen eliminating agent, wherein 2,5-dimethyl hexanedioic acid serves as the main electrolyte, benzoic acid serves as the auxiliary electrolyte, and ethylene glycol serves as the solvent. The electrolyte for the aluminum electrolytic capacitor has the advantages that due to the fact that the 2,5-dimethyl hexanedioic acid serves as the main electrolyte, the solubility and the thermostability of the 2,5-dimethyl hexanedioic acid are better in the ethylene glycol, and medium-pressure or high-pressure aluminum electrolytic capacitors containing the electrolyte has the advantages of being long in service life and good in low-temperature performance.
Description
Technical field
The present invention relates to aluminium electrolytic capacitor electrolyte, particularly can be advantageously used for the driving electrolytic solution of aluminium electrolytic capacitor for mesohigh.
Background technology
The electrolyte of at present known high-pressure aluminum electrolytic capacitor is to take ethylene glycol as main solvent, and the inorganic compounds such as boric acid or ammonium pentaborate are main solute.There is the problem that conductivity is low in such electrolyte.Along with scientific and technical progress, adopt the straight chain bisgallic acids such as azelaic acid, decanedioic acid or its ammonium salt etc. as the main solute of electrolyte, there is the poor problem of high high-temp stability in such electrolyte.After long term high temperature, its conductivity declines larger, thereby the resistance value that causes capacitor raises and affects capacitor life-span, its mesoboric acid or its salt also can at high temperature produce water with glycol reaction, affect the life-span of capacitor, and ammonium sebacate, dodecandioic acid ammonium and acid solubility in ethylene glycol thereof are little, under normal temperature, be no more than 6%, make the poor performance at low temperatures of aluminium electrolytic capacitor.
Summary of the invention
For the problems referred to above, the invention provides a kind of working electrolyte for aluminium electrolytic capacitor.
Concrete technical scheme of the present invention is as follows:
A kind of aluminum electrolytic capacitor electrolyte, it is characterized in that, the weight proportion of described each component of electrolyte is as follows: main electrolyte 10%～15%, assisted electrolysis matter 5%～10%, solvent 65%～73%, flash over voltage elevator 10%～20%, waterproof mixture 0.1%～1%, hydrogen agent 0.1%～1% disappears;
Wherein, described main electrolyte is 2,5-dimethyl adipic acid, and described assisted electrolysis matter is benzoic acid, and described solvent is ethylene glycol.
Further, described flash over voltage elevator is sorbierite, can effectively improve electrolyte flash over voltage.
Further, described waterproof mixture is tributyl phosphate, mainly suppresses aquation, makes alumite insensitive to hydration reaction, thus protection aluminium dielectric oxide film.
The described hydrogen agent that disappears is o-nitrophenol.
Use this working electrolyte of electrolytic capacitor can reach following performance index: flash over voltage 410V-450V, conductivity (2.8～3.0) * 10 at 30 ℃
-3s/cm.
According to technical scheme provided by the invention, compared with prior art there are following several respects:
It is main electrolyte that the present invention utilizes 2,5-dimethyl adipic acid, and 2,5-dimethyl adipic acid has better dissolubility and better thermal stability in ethylene glycol; The middle high-pressure aluminium electrolytic capacitor that contains this electrolyte has the advantages that capacitor life-span is long, cryogenic property is good.
Embodiment
Following embodiment is for the present invention is described better, but not limits the scope of the invention.
A kind of aluminum electrolytic capacitor electrolyte, it is characterized in that, the weight proportion of described each component of electrolyte is as follows: main electrolyte 10%～15%, assisted electrolysis matter 5%～10%, solvent 65%～73%, flash over voltage elevator 10%～20%, waterproof mixture 0.1%～1%, hydrogen agent 0.1%～1% disappears;
Wherein, described main electrolyte is 2,5-dimethyl adipic acid, and described assisted electrolysis matter is benzoic acid, and described solvent is ethylene glycol.
Further, described flash over voltage elevator is sorbierite.
Further, described waterproof mixture is tributyl phosphate, described in the hydrogen agent that disappears be o-nitrophenol.
Embodiment 1
Prepare electrolyte of the present invention, in Table 1.
Table 1 electrolyte prescription table
Embodiment 2
Prepare electrolyte of the present invention, in Table 1.
Electrolyte of the present invention and traditional electrolyte are compared, the results are shown in Table 1.As can be seen from Table 1, with 2,5-dimethyl adipic acid, be that electrolyte flash over voltage and the conductivity that electrolyte is prepared is all significantly improved, be applicable to the above electrolyte quota of 400V.
Above embodiment is only not used in and limits the scope of the invention for the present invention is described, after having read the present invention, those skilled in the art all fall within the application's claims limited range to the modification of the various equivalent form of values of the present invention.
Claims (4)
1. an aluminum electrolytic capacitor electrolyte, it is characterized in that, the weight proportion of described each component of electrolyte is as follows: main electrolyte 10%～15%, assisted electrolysis matter 5%～10%, solvent 65%～73%, flash over voltage elevator 10%～20%, waterproof mixture 0.1%～1%, hydrogen agent 0.1%～1% disappears;
Wherein, described main electrolyte is 2,5-dimethyl adipic acid, and described assisted electrolysis matter is benzoic acid, and described solvent is ethylene glycol.
2. a kind of aluminum electrolytic capacitor electrolyte according to claim 1, is characterized in that, described flash over voltage elevator is glycerol.
3. a kind of aluminum electrolytic capacitor electrolyte according to claim 1, is characterized in that, described waterproof mixture is tributyl phosphate.
4. a kind of aluminum electrolytic capacitor electrolyte according to claim 1, is characterized in that, described in the hydrogen agent that disappears be o-nitrophenol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175868.5A CN103928234A (en) | 2014-04-28 | 2014-04-28 | Electrolyte for aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410175868.5A CN103928234A (en) | 2014-04-28 | 2014-04-28 | Electrolyte for aluminum electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103928234A true CN103928234A (en) | 2014-07-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410175868.5A Pending CN103928234A (en) | 2014-04-28 | 2014-04-28 | Electrolyte for aluminum electrolytic capacitor |
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| CN (1) | CN103928234A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154952A (en) * | 2015-09-01 | 2015-12-16 | 广西贺州市桂东电子科技有限责任公司 | Formation method of ultrahigh-pressure electronic aluminum foil |
| CN105239128A (en) * | 2015-09-01 | 2016-01-13 | 广西贺州市桂东电子科技有限责任公司 | Ultrahigh pressure formed foil forming liquid and preparation method |
| CN105469988A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-conductivity and high-sparking electrolyte for aluminum electrolytic capacitor and preparation method therefor |
| CN105469991A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-sparking and long-service-life electrolyte for aluminum electrolytic capacitor and preparation method therefor |
| CN105469992A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-sparking and anti-lightning electrolyte for aluminum electrolytic capacitor and preparation method therefor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005005336A (en) * | 2003-06-10 | 2005-01-06 | Matsushita Electric Ind Co Ltd | Electrolyte for driving electrolytic capacitor, and electrolytic capacitor using the same |
| CN101521117A (en) * | 2009-03-27 | 2009-09-02 | 深圳新宙邦科技股份有限公司 | Electrolyte for aluminium electrolytic capacitor and preparation method of core solute thereof |
| CN102222568A (en) * | 2011-03-31 | 2011-10-19 | 肇庆绿宝石电子有限公司 | Aluminium electrolytic capacitor specially used in LED driving power supply and manufacturing method thereof |
| CN102254690A (en) * | 2011-04-21 | 2011-11-23 | 南通瑞达电子材料有限公司 | Medium and high voltage working electrolyte of electrolytic capacitor |
-
2014
- 2014-04-28 CN CN201410175868.5A patent/CN103928234A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005005336A (en) * | 2003-06-10 | 2005-01-06 | Matsushita Electric Ind Co Ltd | Electrolyte for driving electrolytic capacitor, and electrolytic capacitor using the same |
| CN101521117A (en) * | 2009-03-27 | 2009-09-02 | 深圳新宙邦科技股份有限公司 | Electrolyte for aluminium electrolytic capacitor and preparation method of core solute thereof |
| CN102222568A (en) * | 2011-03-31 | 2011-10-19 | 肇庆绿宝石电子有限公司 | Aluminium electrolytic capacitor specially used in LED driving power supply and manufacturing method thereof |
| CN102254690A (en) * | 2011-04-21 | 2011-11-23 | 南通瑞达电子材料有限公司 | Medium and high voltage working electrolyte of electrolytic capacitor |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105154952A (en) * | 2015-09-01 | 2015-12-16 | 广西贺州市桂东电子科技有限责任公司 | Formation method of ultrahigh-pressure electronic aluminum foil |
| CN105239128A (en) * | 2015-09-01 | 2016-01-13 | 广西贺州市桂东电子科技有限责任公司 | Ultrahigh pressure formed foil forming liquid and preparation method |
| CN105154952B (en) * | 2015-09-01 | 2018-03-27 | 广西贺州市桂东电子科技有限责任公司 | A kind of chemical synthesizing method of ultrahigh voltage electron aluminium foil |
| CN105239128B (en) * | 2015-09-01 | 2018-03-30 | 广西贺州市桂东电子科技有限责任公司 | A kind of super-pressure Waste Acid From Hua Cheng Foil forms liquid and compound method |
| CN105469988A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-conductivity and high-sparking electrolyte for aluminum electrolytic capacitor and preparation method therefor |
| CN105469991A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-sparking and long-service-life electrolyte for aluminum electrolytic capacitor and preparation method therefor |
| CN105469992A (en) * | 2015-12-22 | 2016-04-06 | 东莞市久制电子有限公司 | High-sparking and anti-lightning electrolyte for aluminum electrolytic capacitor and preparation method therefor |
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Application publication date: 20140716 |