CN101026038A - Working electrolyte of aluminum electrolytic capacitor - Google Patents
Working electrolyte of aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN101026038A CN101026038A CN 200610038464 CN200610038464A CN101026038A CN 101026038 A CN101026038 A CN 101026038A CN 200610038464 CN200610038464 CN 200610038464 CN 200610038464 A CN200610038464 A CN 200610038464A CN 101026038 A CN101026038 A CN 101026038A
- Authority
- CN
- China
- Prior art keywords
- electrolyte
- edta
- ethylene glycol
- ammonium salt
- electrolytic capacitor
- 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.)
- Granted
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 39
- 239000003990 capacitor Substances 0.000 title claims abstract description 20
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 11
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims abstract description 48
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 claims abstract description 24
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims abstract description 23
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 14
- 150000002170 ethers Chemical class 0.000 claims abstract description 13
- 239000012046 mixed solvent Substances 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 claims abstract description 9
- 150000007524 organic acids Chemical class 0.000 claims abstract description 8
- 150000002596 lactones Chemical class 0.000 claims abstract description 7
- 150000007522 mineralic acids Chemical class 0.000 claims abstract description 7
- 150000005846 sugar alcohols Polymers 0.000 claims abstract description 7
- 239000004411 aluminium Substances 0.000 claims description 9
- 239000010949 copper Substances 0.000 abstract description 11
- 239000011888 foil Substances 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 4
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052802 copper Inorganic materials 0.000 abstract description 4
- 229910001431 copper ion Inorganic materials 0.000 abstract description 2
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 abstract 1
- 150000004696 coordination complex Chemical class 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- DIHKMUNUGQVFES-UHFFFAOYSA-N n,n,n',n'-tetraethylethane-1,2-diamine Chemical compound CCN(CC)CCN(CC)CC DIHKMUNUGQVFES-UHFFFAOYSA-N 0.000 abstract 1
- 239000000654 additive Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 5
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 description 4
- 239000001741 Ammonium adipate Substances 0.000 description 4
- 235000019293 ammonium adipate Nutrition 0.000 description 4
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The invention relates to a working electrolyte of an aluminum electrolytic capacitor, which is prepared by mixing one or more of polyhydric alcohols such as ethylene glycol and diethylene glycol, lactones such as gamma-butyrolactone and ethers such as ethylene glycol monomethyl ether with pure water as a mixed solvent of the electrolyte, organic acid and ammonium salt thereof, inorganic acid and ammonium salt thereof as solutes, and 0.01-1.5% of tetraethyl Ethylene Diamine (EDTA) added into the mixed solvent to prepare the electrolyte, because the EDTA has the characteristics of high solubility, high stability and high corrosion resistanceComplexing function, when copper (Cu) is separated out from the negative electrode foil and is oxidized into copper ions (Cu)2+) Then, will react with Cu2+Form firm coordination complex with low solubility, thereby preventing Cu2+The discharge is reduced, and the phenomenon of short circuit between the electrodes is prevented.
Description
(1) technical field
The present invention relates to a kind of working electrolyte for aluminium electrolytic capacitor.
(2) background technology
At present, general working electrolyte for aluminium electrolytic capacitor is to be primary solvent with ethylene glycol etc., uses the dissolving of organic acid or its esters wherein to be made into.With cupric (〉=when 20mg/m2) anode foil is as capacitor anode, because of the capacitor long-term work or store, copper in the anode foil can slowly dissolve, separate out, copper (Cu) can be through oxidation-reduction reaction, at the anode foil surface sediment and infiltrate through in the electrolytic paper, cause two electrodes of capacitor to be short-circuited, capacitor was lost efficacy.
(3) summary of the invention
In order to overcome above-mentioned defective, the invention provides a kind of working electrolyte for aluminium electrolytic capacitor.
The present invention solves the technical scheme that its technical problem is taked: with ethers such as lactone such as polyalcohols such as ethylene glycol, diethylene glycol, gamma-butyrolacton, ethylene glycol monoemethyl ethers, above one or more mix the mixed solvent of back as electrolyte with pure water, with organic acid and ammonium salt thereof, inorganic acid and ammonium salt thereof are as solute, be made into basic electrolyte, and the EDTA (EDTA) that adds 0.01%-1.5% is as additive, thereby constitutes working electrolyte of electrolytic capacitor.
Beneficial effect of the present invention: from anode foil, separate out through peroxidating when copper (Cu) and to become copper ion (Cu
2+) after, EDTA is because of having the complexing function, meeting and Cu
2+Form the very low firm coordination fluor-complex of solubility, thereby prevented Cu
2+The discharge reduction, the phenomenon of short circuit between electrodes is prevented.
(4) description of drawings
No accompanying drawing
(5) embodiment
Embodiment:
Embodiment 1: with the ethylene glycol of 70wt% weight, with the pure water of 20% weight be mixed solvent, the ammonium adipate of 10% weight is made into basic electrolyte as solute, add 0.01% EDTA (EDTA) again as additive, thereby constitute working electrolyte of electrolytic capacitor.
Embodiment 2: with the diethylene glycol of 70wt% weight, with the pure water of 20% weight be mixed solvent, the ammonium adipate of 10% weight is made into basic electrolyte as solute, add 0.2% EDTA (EDTA) again as additive, thereby constitute working electrolyte of electrolytic capacitor.
Embodiment 3: with the gamma-butyrolacton of 70wt% weight, with the pure water of 20% weight be mixed solvent, the ammonium adipate of 10% weight is made into basic electrolyte as solute, add 1.0% EDTA (EDTA) again as additive, thereby constitute working electrolyte of electrolytic capacitor.
Embodiment 4: with the ethylene glycol monoemethyl ether of 70wt% weight, with the pure water of 20% weight be mixed solvent, the ammonium adipate of 10% weight is made into basic electrolyte as solute, add 1.5% EDTA (EDTA) again as additive, thereby constitute working electrolyte of electrolytic capacitor.
Claims (5)
1, a kind of working electrolyte for aluminium electrolytic capacitor, by with ethers such as lactone such as polyalcohols such as ethylene glycol, diethylene glycol, gamma-butyrolacton, ethylene glycol monoemethyl ethers, above one or more mix the mixed solvent of back as electrolyte with pure water, with organic acid and ammonium salt thereof, inorganic acid machine ammonium salt is as solute, be made into basic electrolyte and form, it is characterized in that: described electrolyte also adds 0.01%
-1.5% EDTA (EDTA).
2, a kind of working electrolyte for aluminium electrolytic capacitor according to claim 1, by with ethers such as lactone such as polyalcohols such as ethylene glycol, diethylene glycol, gamma-butyrolacton, ethylene glycol monoemethyl ethers, above one or more mix the mixed solvent of back as electrolyte with pure water, with organic acid and ammonium salt thereof, inorganic acid machine ammonium salt is as solute, be made into basic electrolyte and form, it is characterized in that: described electrolyte also adds 0.01% EDTA (EDTA).
3, a kind of working electrolyte for aluminium electrolytic capacitor according to claim 1, by with ethers such as lactone such as polyalcohols such as ethylene glycol, diethylene glycol, gamma-butyrolacton, ethylene glycol monoemethyl ethers, above one or more mix the mixed solvent of back as electrolyte with pure water, with organic acid and ammonium salt thereof, inorganic acid machine ammonium salt is as solute, be made into basic electrolyte and form, it is characterized in that: described electrolyte also adds 0.2% EDTA (EDTA).
4, a kind of working electrolyte for aluminium electrolytic capacitor according to claim 1, by with ethers such as lactone such as polyalcohols such as ethylene glycol, diethylene glycol, gamma-butyrolacton, ethylene glycol monoemethyl ethers, above one or more mix the mixed solvent of back as electrolyte with pure water, with organic acid and ammonium salt thereof, inorganic acid machine ammonium salt is as solute, be made into basic electrolyte and form, it is characterized in that: described electrolyte also adds 1.0% EDTA (EDTA).
5, a kind of working electrolyte for aluminium electrolytic capacitor according to claim 1, by with ethers such as lactone such as polyalcohols such as ethylene glycol, diethylene glycol, gamma-butyrolacton, ethylene glycol monoemethyl ethers, above one or more mix the mixed solvent of back as electrolyte with pure water, with organic acid and ammonium salt thereof, inorganic acid machine ammonium salt is as solute, be made into basic electrolyte and form, it is characterized in that: described electrolyte also adds 1.5% EDTA (EDTA).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100384647A CN101026038B (en) | 2006-02-23 | 2006-02-23 | Working electrolyte for aluminium electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100384647A CN101026038B (en) | 2006-02-23 | 2006-02-23 | Working electrolyte for aluminium electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101026038A true CN101026038A (en) | 2007-08-29 |
| CN101026038B CN101026038B (en) | 2010-12-01 |
Family
ID=38744201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100384647A Active CN101026038B (en) | 2006-02-23 | 2006-02-23 | Working electrolyte for aluminium electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101026038B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477901B (en) * | 2008-12-29 | 2010-12-29 | 南通江海电容器股份有限公司 | Fire retarding electrolytic solution and preparation thereof |
| CN101477900B (en) * | 2008-12-29 | 2010-12-29 | 南通江海电容器股份有限公司 | Wide temperature range high voltage aluminum electrolysis capacitor working electrolyte and preparation thereof |
| CN101477902B (en) * | 2008-12-29 | 2010-12-29 | 南通江海电容器股份有限公司 | High temperature durable and wide temperature range aluminum electrolysis capacitor working electrolyte and preparation thereof |
| CN102176379A (en) * | 2010-12-24 | 2011-09-07 | 东莞宏强电子有限公司 | Ternary mixed solvent with high boiling point and low freezing point and application thereof |
| CN102280257A (en) * | 2011-05-31 | 2011-12-14 | 肇庆绿宝石电子有限公司 | Method for enhancing high/low temperature resistance of aluminium electrolytic capacitors |
| CN102664108A (en) * | 2012-05-24 | 2012-09-12 | 深圳中元电子有限公司 | Manufacturing method of sound quality aluminum electrolysis capacitor and special electrolyte thereof |
| CN105575665A (en) * | 2015-12-22 | 2016-05-11 | 东莞市久制电子有限公司 | Electrolyte for high-conductance and long-life aluminum electrolytic capacitor and preparation method thereof |
| CN107863250A (en) * | 2017-10-23 | 2018-03-30 | 周瑛 | The electrolyte of the alminium electrolytic condenser of efficient stable |
| CN111384446A (en) * | 2018-12-29 | 2020-07-07 | 中国科学院物理研究所 | Wide-temperature range electrolyte, secondary battery and application thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SG97822A1 (en) * | 1998-12-01 | 2003-08-20 | Rubycon Corp | Electrolytic solution for electrolytic capacitor and electrolytic capacitor using the same |
-
2006
- 2006-02-23 CN CN2006100384647A patent/CN101026038B/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477901B (en) * | 2008-12-29 | 2010-12-29 | 南通江海电容器股份有限公司 | Fire retarding electrolytic solution and preparation thereof |
| CN101477900B (en) * | 2008-12-29 | 2010-12-29 | 南通江海电容器股份有限公司 | Wide temperature range high voltage aluminum electrolysis capacitor working electrolyte and preparation thereof |
| CN101477902B (en) * | 2008-12-29 | 2010-12-29 | 南通江海电容器股份有限公司 | High temperature durable and wide temperature range aluminum electrolysis capacitor working electrolyte and preparation thereof |
| CN102176379A (en) * | 2010-12-24 | 2011-09-07 | 东莞宏强电子有限公司 | Ternary mixed solvent with high boiling point and low freezing point and application 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 |
| CN102280257A (en) * | 2011-05-31 | 2011-12-14 | 肇庆绿宝石电子有限公司 | Method for enhancing high/low temperature resistance of aluminium electrolytic capacitors |
| CN102664108A (en) * | 2012-05-24 | 2012-09-12 | 深圳中元电子有限公司 | Manufacturing method of sound quality aluminum electrolysis capacitor and special electrolyte thereof |
| CN105575665A (en) * | 2015-12-22 | 2016-05-11 | 东莞市久制电子有限公司 | Electrolyte for high-conductance and long-life aluminum electrolytic capacitor and preparation method thereof |
| CN107863250A (en) * | 2017-10-23 | 2018-03-30 | 周瑛 | The electrolyte of the alminium electrolytic condenser of efficient stable |
| CN111384446A (en) * | 2018-12-29 | 2020-07-07 | 中国科学院物理研究所 | Wide-temperature range electrolyte, secondary battery and application thereof |
| CN111384446B (en) * | 2018-12-29 | 2022-04-08 | 中国科学院物理研究所 | Wide-temperature range electrolyte, secondary battery and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101026038B (en) | 2010-12-01 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20081226 Address after: Chao Ping Town Tongzhou city Jiangsu Tongyang Road No. 79 post encoding: 226300 Applicant after: Nantong Jianghai Capacitor Co., Ltd. Address before: Chao Ping Town Tongzhou city Jiangsu Tongyang Road No. 79 post encoding: 226300 Applicant before: Jianghai Capacitor Co., Ltd., Nantong |
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| ASS | Succession or assignment of patent right |
Owner name: NANTONG JIANGHAI CAPACITOR CO., LTD. Free format text: FORMER OWNER: NANTONG JIANGHAI CAPACITOR CO. Effective date: 20081226 |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |