CN101373665A - Long-life working electrolyte for electrolytic capacitor - Google Patents
Long-life working electrolyte for electrolytic capacitor Download PDFInfo
- Publication number
- CN101373665A CN101373665A CNA2007100451612A CN200710045161A CN101373665A CN 101373665 A CN101373665 A CN 101373665A CN A2007100451612 A CNA2007100451612 A CN A2007100451612A CN 200710045161 A CN200710045161 A CN 200710045161A CN 101373665 A CN101373665 A CN 101373665A
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- electrolytic capacitor
- salt
- solvent
- acid
- 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 24
- 239000003792 electrolyte Substances 0.000 title claims abstract description 24
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 49
- 239000002904 solvent Substances 0.000 claims abstract description 16
- 150000003839 salts Chemical class 0.000 claims abstract description 15
- HGPLPTQLYAHGDY-UHFFFAOYSA-N 2,9-dimethyldecanedioic acid Chemical compound OC(=O)C(C)CCCCCCC(C)C(O)=O HGPLPTQLYAHGDY-UHFFFAOYSA-N 0.000 claims abstract description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 6
- 239000001257 hydrogen Substances 0.000 claims abstract description 6
- 239000008151 electrolyte solution Substances 0.000 claims description 13
- 238000005868 electrolysis reaction Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 7
- CXMXRPHRNRROMY-UHFFFAOYSA-N sebacic acid Chemical group OC(=O)CCCCCCCCC(O)=O CXMXRPHRNRROMY-UHFFFAOYSA-N 0.000 claims description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N methanol Natural products OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 6
- BDJRBEYXGGNYIS-UHFFFAOYSA-N nonanedioic acid Chemical compound OC(=O)CCCCCCCC(O)=O BDJRBEYXGGNYIS-UHFFFAOYSA-N 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- -1 meta-dinitro-benzent Chemical compound 0.000 claims description 5
- 229920000305 Nylon 6,10 Polymers 0.000 claims description 4
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 claims description 4
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 3
- IQUPABOKLQSFBK-UHFFFAOYSA-N 2-nitrophenol Chemical compound OC1=CC=CC=C1[N+]([O-])=O IQUPABOKLQSFBK-UHFFFAOYSA-N 0.000 claims description 2
- BTJIUGUIPKRLHP-UHFFFAOYSA-N 4-nitrophenol Chemical compound OC1=CC=C([N+]([O-])=O)C=C1 BTJIUGUIPKRLHP-UHFFFAOYSA-N 0.000 claims description 2
- 239000005711 Benzoic acid Substances 0.000 claims description 2
- BNUHAJGCKIQFGE-UHFFFAOYSA-N Nitroanisol Chemical compound COC1=CC=C([N+]([O-])=O)C=C1 BNUHAJGCKIQFGE-UHFFFAOYSA-N 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims description 2
- 150000001298 alcohols Chemical class 0.000 claims description 2
- 235000010233 benzoic acid Nutrition 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 150000002170 ethers Chemical class 0.000 claims description 2
- 150000002828 nitro derivatives Chemical class 0.000 claims description 2
- 239000003960 organic solvent Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 239000000243 solution Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 6
- 239000000654 additive Substances 0.000 abstract description 4
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000005611 electricity Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000002516 radical scavenger Substances 0.000 abstract 1
- 150000001990 dicarboxylic acid derivatives Chemical class 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- OWCLRJQYKBAMOL-UHFFFAOYSA-N 2-butyloctanedioic acid Chemical compound CCCCC(C(O)=O)CCCCCC(O)=O OWCLRJQYKBAMOL-UHFFFAOYSA-N 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- TVIDDXQYHWJXFK-UHFFFAOYSA-N dodecanedioic acid Chemical compound OC(=O)CCCCCCCCCCC(O)=O TVIDDXQYHWJXFK-UHFFFAOYSA-N 0.000 description 2
- IQXJCCZJOIKIAD-UHFFFAOYSA-N 1-(2-methoxyethoxy)hexadecane Chemical compound CCCCCCCCCCCCCCCCOCCOC IQXJCCZJOIKIAD-UHFFFAOYSA-N 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- GJYJYFHBOBUTBY-UHFFFAOYSA-N alpha-camphorene Chemical compound CC(C)=CCCC(=C)C1CCC(CCC=C(C)C)=CC1 GJYJYFHBOBUTBY-UHFFFAOYSA-N 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
- 239000004411 aluminium Substances 0.000 description 1
- NTBYNMBEYCCFPS-UHFFFAOYSA-N azane boric acid Chemical compound N.N.N.OB(O)O NTBYNMBEYCCFPS-UHFFFAOYSA-N 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
- 229950009789 cetomacrogol 1000 Drugs 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
The invention provides a novel long-life working electricity of an electrolytic capacitorThe liquid is prepared by using the characteristics that 2, 9-dimethyl sebacic acid and salt thereof have high solubility in ethylene glycol and are liquid at normal temperature. Therefore, even if the ethylene glycol solvent in the electrolyte volatilizes at high temperature, the 2, 9-dimethyl sebacic acid and the salt thereof can still maintain the conductivity, and the service life of the capacitor is prolonged. The invention adopts glycol as solvent, 2, 9-dimethyl sebacic acid and salt thereof as main solute, and various additives are added to prepare the high-voltage working electrolyte for driving the electrolytic capacitor, and the high-voltage working electrolyte is characterized by comprising the following components in parts by weight: main electrolyte: 1% -10%, auxiliary electrolyte: 2% -5%, solvent: 64.5% -80%, sparking voltage booster: 10% -20%, waterproof adhesive: 0.1% -1%, hydrogen scavenger: 0.1 to 1 percent. The working electrolyte of the electrolytic capacitor can achieve the following indexes: the flash voltage is 450-－3S/cm, high temperature resistance, long service life, and service life test at 125 ℃ of more than 2000 h.
Description
Technical field
The present invention relates to electrolyte for electrolytic capacitor, i.e. the driving electrolytic solution of electrolytic capacitor particularly relates to and can be advantageously used for the electrolyte composition of mesohigh with the driving electrolytic solution of aluminium electrolytic capacitor.
Background technology
Former electrolytic capacitor driving electrolytic solution, particularly as making spent glycol in the mesohigh electrolyte substantially as solvent, boric acid or boric acid ammonium salt are used as electrolytical additive, such electrolyte produces the crystallization water from boric acid, and between ethylene glycol and the boric acid because esterification generates a large amount of condensation water, cause the moisture of electrolyte system inside to raise, when its result uses this electrolyte under surpassing 100 ℃ serviceability temperature condition, water in the electrolyte will become steam and evaporate, voltage rise height in the assembly of electrochemical capacitor produces so-called destruction problem unavoidably thereupon.
In order to improve this shortcoming, can adopt straight chain type saturated dicarboxylic acid such as containing azelaic acid, decanedioic acid, dodecanedioic acid or its salt as electrolyte solution.But, this straight chain type saturated dicarboxylic acid is lower for solvent dissolubilities such as ethylene glycol, and along with the volatilization down of the ethylene glycol solvent high temperature in the use electrolyte of capacitor, the straight chain type saturated dicarboxylic acid is separated out as crystallization easily, thereby the generation super-high-current, can not avoid capacitor hot properties deterioration.
Chinese patent CN1511326A discloses a kind of 2-butyl suberic acid and salt thereof the electrolyte as solute, because 2-butyl suberic acid makes moderate progress for the solubility of the ethylene glycol solvent solubility than aforementioned linear type saturated dicarboxylic acid or its salt, thereby tells on.
Summary of the invention
The invention provides a kind of new long life service working electrolytic solution of electrolytic capacitor, it utilizes 2, and 9-dimethyl decanedioic acid and salt thereof solubility in ethylene glycol is big, and promptly presents liquid characteristic at normal temperatures.Therefore, though the volatilization down of the ethylene glycol solvent high temperature in the electrolyte, 2,9-dimethyl decanedioic acid and salt thereof still can keep its conductivity, prolong the useful life of capacitor, can get around existing patent limitation.
It is solvent that the present invention adopts ethylene glycol, with 2,9-dimethyl decanedioic acid and salt thereof are main solute, add various additives and be mixed with electrolytic capacitor and drive, it is characterized in that it is made up of following components in weight percentage: main electrolyte: 1%-10%, assisted electrolysis matter: 2%-5% with high-pressure work electrolysis liquid, solvent: 64.5%-80%, flash over voltage elevator: 10%-20%, waterproof mixture: 0.1%-1%, hydrogen agent: 0.1%-1% disappears.
Use this long life service working electrolytic solution of electrolytic capacitor can reach following index: flash over voltage 450-460V, 40 ℃ of following conductivity (2.0～2.4) * 10
-3S/cm, the high temperature resistance and long life-span is more than 125 ℃ of life test 2000h.
Embodiment
The invention provides a kind of electrochemical capacitor long life service working and separate liquid, it adopts ethylene glycol is solvent, with 2,9-dimethyl decanedioic acid and salt thereof are main solute, add various additives and be mixed with electrolytic capacitor and drive, it is characterized in that it is made up of following components in weight percentage with high-pressure work electrolysis liquid:
Main electrolyte: 1%-10%
Assisted electrolysis matter: 2%-5%
Solvent: 64.5%-80%
Flash over voltage elevator: 10%-20%
Waterproof mixture: 0.1%-1%
Hydrogen agent: 0.1%-1% disappears
Wherein main electrolyte is 2,9-dimethyl decanedioic acid and salt thereof; Assisted electrolysis matter is decanedioic acid, azelaic acid, dodecandioic acid, benzoic acid, phthalic acid and salt thereof; Solvent is one or more organic solvents in alcohols or the ethers, preferred ethylene glycol; Described flash over voltage elevator is the multipolarity high molecular polymer, comprises polyvinyl alcohol, polyvinylpyrrolidone, polyacrylamide etc.; Described waterproof mixture is a phosphorus-containing compound; The described hydrogen agent that disappears is a nitro compound, comprises in p-nitrophenol, o-nitrophenol, meta-dinitro-benzent, paranitroanisole or the p-nitrophenyl methyl alcohol one or more.
Embodiment:
Following embodiment is for the present invention is described better, and unrestricted protection scope of the present invention.
Dispose electrolyte by following weight ratio:
| Composition | Content |
| Ethylene glycol | 85.6％ |
| Cetomacrogol 1000 | 4％ |
| 2,9-dimethyl decanedioic acid | 4％ |
| Ammonium sebacate | 3％ |
| Ammonium hypophosphite | 0.5％ |
| P-nitrophenyl methyl alcohol | 0.5％ |
| Polyvinyl alcohol | 2.4％ |
Institute's electrolyte performance index are as follows according to the above ratio:
| Project | Technical indicator |
| Sparking voltage | 490V |
| Conductivity M/S 40℃ | 2.2±0.2ms/cm |
| The pH value | 6.5-6.8 |
| Arrive voltage | 520V |
| 125 ℃ of life tests | ≥2000h |
Claims (6)
1. long life service working electrolytic solution of electrolytic capacitor, it is a solvent with ethylene glycol, and with 2,9-dimethyl decanedioic acid and salt thereof are main solute, its proportioning is: main electrolyte: 1%-10%, assisted electrolysis matter: 2%-5%, solvent: 64.5%-80%, flash over voltage elevator: 10%-20%, waterproof mixture: 0.1%-1%, hydrogen agent: the 0.1%-1% that disappears, it is characterized in that: main electrolyte is 2,9-dimethyl decanedioic acid and salt thereof.
2. according to claims 1 described a kind of long life service working electrolytic solution of electrolytic capacitor, it is characterized in that: assisted electrolysis matter is decanedioic acid, azelaic acid, dodecandioic acid, benzoic acid, phthalic acid and salt thereof.
3. according to claims 1 described a kind of long life service working electrolytic solution of electrolytic capacitor, it is characterized in that: solvent is one or more organic solvents in alcohols or the ethers, preferred ethylene glycol.
4. according to claims 1 described a kind of long life service working electrolytic solution of electrolytic capacitor, it is characterized in that: the flash over voltage elevator is the ethylene glycol solution that contains 12% polyvinyl alcohol.
5. according to claims 1 described a kind of long life service working electrolytic solution of electrolytic capacitor, it is characterized in that: the waterproof mixture is a phosphorus-containing compound.
6. according to claims 1 described a kind of long life service working electrolytic solution of electrolytic capacitor, it is characterized in that: the hydrogen agent that disappears is a nitro compound, comprises in p-nitrophenol, o-nitrophenol, meta-dinitro-benzent, paranitroanisole or the p-nitrophenyl methyl alcohol one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100451612A CN101373665A (en) | 2007-08-23 | 2007-08-23 | Long-life working electrolyte for electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100451612A CN101373665A (en) | 2007-08-23 | 2007-08-23 | Long-life working electrolyte for electrolytic capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101373665A true CN101373665A (en) | 2009-02-25 |
Family
ID=40447765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100451612A Pending CN101373665A (en) | 2007-08-23 | 2007-08-23 | Long-life working electrolyte for electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101373665A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789900A (en) * | 2012-04-24 | 2012-11-21 | 南通一品机械电子有限公司 | Electrolytic capacitor working electrolyte capable of improving high-temperature resistance and prolonging service life of electrolytic capacitor |
| CN102834882A (en) * | 2010-03-26 | 2012-12-19 | 日本贵弥功株式会社 | Electrolyte for electrolytic capacitor |
| CN103325570A (en) * | 2013-07-03 | 2013-09-25 | 中国振华（集团）新云电子元器件有限责任公司 | Preparation method of high temperature resistant capacitor |
| CN105977027A (en) * | 2016-08-04 | 2016-09-28 | 湖南柯立凯科技开发有限公司 | Electrolyte for aluminum electrolytic capacitor |
| CN106449109A (en) * | 2016-10-26 | 2017-02-22 | 安徽飞达电气科技有限公司 | Electrolytic capacitor long-service-life working electrolyte |
| CN106449108A (en) * | 2016-10-26 | 2017-02-22 | 安徽飞达电气科技有限公司 | Electrolytic capacitor high-temperature-resistance working electrolyte |
| CN109273268A (en) * | 2018-09-18 | 2019-01-25 | 益阳市锦汇电子有限公司 | A kind of aluminum electrolytic capacitor electrolyte and preparation method of boron-doping acid glycerine polyester |
-
2007
- 2007-08-23 CN CNA2007100451612A patent/CN101373665A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102834882A (en) * | 2010-03-26 | 2012-12-19 | 日本贵弥功株式会社 | Electrolyte for electrolytic capacitor |
| CN102834882B (en) * | 2010-03-26 | 2017-03-15 | 日本贵弥功株式会社 | Electrolyte for electrolytic capacitor |
| CN102789900A (en) * | 2012-04-24 | 2012-11-21 | 南通一品机械电子有限公司 | Electrolytic capacitor working electrolyte capable of improving high-temperature resistance and prolonging service life of electrolytic capacitor |
| CN103325570A (en) * | 2013-07-03 | 2013-09-25 | 中国振华（集团）新云电子元器件有限责任公司 | Preparation method of high temperature resistant capacitor |
| CN103325570B (en) * | 2013-07-03 | 2016-05-11 | 中国振华（集团）新云电子元器件有限责任公司 | The preparation method of high temperature resistant capacitor |
| CN105977027A (en) * | 2016-08-04 | 2016-09-28 | 湖南柯立凯科技开发有限公司 | Electrolyte for aluminum electrolytic capacitor |
| CN105977027B (en) * | 2016-08-04 | 2017-11-17 | 湖南柯立凯科技开发有限公司 | A kind of electrolyte for aluminum electrolytic capacitor |
| CN106449109A (en) * | 2016-10-26 | 2017-02-22 | 安徽飞达电气科技有限公司 | Electrolytic capacitor long-service-life working electrolyte |
| CN106449108A (en) * | 2016-10-26 | 2017-02-22 | 安徽飞达电气科技有限公司 | Electrolytic capacitor high-temperature-resistance working electrolyte |
| CN109273268A (en) * | 2018-09-18 | 2019-01-25 | 益阳市锦汇电子有限公司 | A kind of aluminum electrolytic capacitor electrolyte and preparation method of boron-doping acid glycerine polyester |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101373665A (en) | Long-life working electrolyte for electrolytic capacitor | |
| CN1744247B (en) | Aluminium electrolytic capacitor working electrolyte and capacitor obtained thereof | |
| CN102969161A (en) | Electrolyte for driving of aluminum electrolytic capacitor and preparation method of main solute of electrolyte | |
| CN106158380A (en) | A kind of electrolyte of high-pressure aluminum electrolytic capacitor and preparation method thereof | |
| CN101004976B (en) | Electrolyte of electrolytic capacitor | |
| CN103915258A (en) | 650V-700V extra-high-voltage aluminum electrolytic capacitor, working electrolyte and preparation method thereof | |
| CN103839682B (en) | 600V working electrolyte for aluminium electrolytic capacitor and its application | |
| CN1646659A (en) | Heat transfer compositions with high electrical resistance for fuel cell assemblies | |
| CN101521116A (en) | Working electrolyte of electrolytic capacitor | |
| CN105304332B (en) | A kind of 650V working electrolyte for aluminium electrolytic capacitor | |
| CN102254690A (en) | Medium and high voltage working electrolyte of electrolytic capacitor | |
| CN105513801A (en) | High temperature resistant, ripple resistant, and long life electrolyte for aluminium electrolytic capacitor and preparation method thereof | |
| JP2014524159A (en) | Aluminum electrolytic capacitor electrolyte and aluminum electrolytic capacitor | |
| CN101373666B (en) | High pressure working electrolytic solution of electrolytic capacitor | |
| CN106992075A (en) | The electrolyte and its compound method of high temperature resistance and the aluminium electrolutic capacitor of high pressure | |
| CN102789900A (en) | Electrolytic capacitor working electrolyte capable of improving high-temperature resistance and prolonging service life of electrolytic capacitor | |
| CN103928234A (en) | Electrolyte for aluminum electrolytic capacitor | |
| CN102930989A (en) | Long-lifetime working electrolyte formula | |
| CN107275093B (en) | A kind of 600V electrolyte and preparation method thereof | |
| CN105469991A (en) | High-sparking and long-service-life electrolyte for aluminum electrolytic capacitor and preparation method therefor | |
| CN105575665A (en) | Electrolyte for high-conductance and long-life aluminum electrolytic capacitor and preparation method thereof | |
| CN102254689A (en) | Working electrolyte for electrolytic capacitor | |
| CN112837939A (en) | High-temperature-resistant high-voltage electrolyte and aluminum electrolytic capacitor using same | |
| CN102930988A (en) | Electrolytic capacitor solution | |
| CN101477901B (en) | Fire retarding electrolytic solution and preparation 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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090225 |