CN101483101A - 125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid - Google Patents
125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid Download PDFInfo
- Publication number
- CN101483101A CN101483101A CNA2008102204205A CN200810220420A CN101483101A CN 101483101 A CN101483101 A CN 101483101A CN A2008102204205 A CNA2008102204205 A CN A2008102204205A CN 200810220420 A CN200810220420 A CN 200810220420A CN 101483101 A CN101483101 A CN 101483101A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- high temperature
- electrolyte
- aluminium
- long life
- 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
Images
Landscapes
- Electric Double-Layer Capacitors Or The Like (AREA)
Abstract
The present invention relates to the manufacture field of capacitor, specifically to a high temperature (125 DEG C) long life electrolytic capacitor, its manufacturing method and its special electrolyte. The capacitor is formed by manufacturing a capacitor core package by coiling together the cathode foil, cathode foil, electrolytic paper and leading-out wires; dipping the core packages in the electrolyte; and then putting in the aluminum shell; and sealing by the plug. The electrolyte has 85-88 parts of solvent composition, 5.5-11 parts of solute, 1-1.5 parts of additives and 3-5 parts of high temperature stabilizer. The capacitor has a low impedance, high-profile current resistance, long-life (5,000 hours in durability test at 125 DEG C).
Description
Technical field
The present invention relates to field of capacitor manufacture, be specifically related to a kind of 125 DEG C high temperature long life aluminum electrolysis capacitor, its manufacture method and special electrolysis liquid thereof.
Background technology
Along with developing rapidly of electronic technology, the occasion that aluminium electrolytic capacitor is applied in high temperature gets more and more, for example, and powerful electricity-saving lamp in the green illumination, electrodeless lamp; Engine control circuit in the automotive electronics, the electronic circuit of headstock HID headlight all requires long-life 125 ℃ aluminium electrolytic capacitor.
Producing long-life 125 ℃ of aluminium electrolytic capacitors has two big technological difficulties, at first is Working electrolyte, and guarantee has good stable under 125 ℃ of high temperature; Another difficult point is under long HTHP, is easy to bring out seal aluminium stalk and the aluminium tongue generation anodic attack of plug to lead-out wire.
Summary of the invention
In order to satisfy the application of aluminium electrolytic capacitor at 125 DEG C high temperature, primary and foremost purpose of the present invention provides a kind of electrolyte that good stability is arranged under 125 ℃ of high temperature.
The present invention also aims to provide a kind of aluminium electrolytic capacitor that contains the 125 DEG C high temperature long life of above-mentioned electrolyte.
Another object of the present invention provides a kind of manufacture method of above-mentioned capacitor.
For realizing purpose of the present invention, technical scheme of the present invention is as follows: a kind of electrolyte is characterized in that comprising the component of following weight portion: solvent 85-88 part, solute 5.5-11 part, additive 1-1.5 part and high-temperature stabiliser 3-5 part;
Described solvent is at least a in ethylene glycol, diethylene glycol (DEG), the polyethylene glycol; Described solute is boric acid, ammonium adipate, 1, at least a in 7-ammonium sebacate, ammonium sebacate, ammonium benzoate, the dodecandioic acid; Described additive is at least a in polyvinyl alcohol, ammonium hypophosphite, ammonium dihydrogen phosphate, paranitrobenzoic acid and the p-nitrophenyl methyl alcohol; Described high-temperature stabiliser is a sweet mellow wine.
The present invention also provides a kind of 125 DEG C high temperature long life aluminum electrolysis capacitor, and this capacitor comprises to be wound on by cathode foil, anode foil, electrolytic paper and lead-out wire to be made capacitor core bag, above-mentioned electrolyte, aluminum hull together and seal plug.
For making above-mentioned capacitor obtain more performance, the invention provides more preferred scheme:
The lead-out wire of capacitor of the present invention is made up of aluminium tongue, aluminium stalk portion and copper facing or zinc-plated steel wire, be divided into positive lead-out wire that is connected with cathode foil and the negative lead-out wire that is connected with anode foil, the positive lead-out wire that described positive lead-out wire adopts need pass through special processing, its aluminium tongue and aluminium stalk portion all will carry out voltage and change into processing, formation voltage is 300～600V, aluminium purity 〉=99.97%.The benefit of Chu Liing is to reduce the gas that seasoned process produces like this, reduce the leakage current of product, but main is, owing to seal plug is to contact with the aluminium stalk of lead-out wire, after aluminium stalk surface forms the aluminium oxide of one deck densification, will lower product greatly in use, aluminium stalk surface produces the chance of electrochemical reaction under the condition of HTHP, impurity in the plug, mainly be that chloride ion becomes slowly to the speed that aluminium obstructs surface migration, assembly, effectively prolong and suppressed the generation of anodic attack.
The plug of wood invention adopts ethylene-propylene diene copolymer (EPMD), requires whole chlorinty≤60PPM, and hardness is 72～83IRHD.Though butyl rubber (IIR) has better air-tightness than ethylene-propylene diene copolymer (EPMD), more helps the long-life of product, by present technological level, the chlorinty of butyl rubber (IIR) is too big, up to 300PPM, can not be used for 125 ℃ of high temperature, high die pressing product.Electrolyte among the present invention is added with high-temperature stabiliser, and electrolyte volatility under 125 ℃ of high temperature is very little, and ethylene-propylene diene copolymer (EPMD) is used and also can reaches 125 ℃ of long-lives of 5000 hours.
The present invention also provides the preparation method of described 125 DEG C high temperature long life aluminum electrolysis capacitor: be cathode foil, anode foil, electrolytic paper and lead-out wire to be wound on make described capacitor core bag together, after this core wraps in and flooded described electrolyte, put into described aluminum hull, seal with described plug and form.
The relative prior art of the present invention has following beneficial effect:
The capacitor that the wood invention obtains has Low ESR, anti-high line electric current and feature of long life, and its endurance test at 125 ℃ reaches 5000 hours.
Description of drawings
Fig. 1 is the cutaway view of 125 DEG C high temperature long life aluminum electrolysis capacitor of the present invention.
Fig. 2 is the structural representation of the core bag of 125 DEG C high temperature long life aluminum electrolysis capacitor of the present invention.
Embodiment
Further specify the present invention below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited thereto.
Table 1 and 2 is two electrolyte prescriptions provided by the invention and their performance.
Table 1 Working electrolyte formulation examples
| Component | Formulation Example 1 | Formulation Example 2 |
| (percentage by weight %) | ||
| Ethylene glycol | 85 | 83 |
| |
5 | |
| 1, the 7-ammonium sebacate | 3 | 3 |
| Certain herbaceous plants with big |
2 | |
| Ammonium adipate | 3 | |
| |
5 | |
| The dodecandioic acid ammonium | 0.5 | |
| |
3 | 5 |
| Ammonium hypophosphite | 0.2 | 0.2 |
| Paranitrobenzoic acid | 0.8 | |
| P-nitrophenyl methyl alcohol | 1.3 |
Table 2 example Working electrolyte characteristic
| Electrolyte | 30 ℃ of pH values | 30 ℃ of conductivity | 125 ℃ of flash over voltages |
| Formulation Example 1 | 6.8 | 1.9 | ≥400V |
| Formulation Example 2 | 6.4 | 0.9 | ≥480V |
Fig. 1 and Fig. 2 show the structure of 125 DEG C high temperature long life aluminum electrolysis capacitor of the present invention.This capacitor is cathode foil 1, anode foil 2, electrolytic paper 3 and lead-out wire 4 (being made up of aluminium tongue (not shown), aluminium stalk portion 9 and copper facing or zinc-plated steel wire 10) to be wound on make described capacitor core bag 5 together, this core bag 5 was after flooding electrolyte, put into described aluminum hull 6, seal and obtain with described plug 7, it is outer can set up sleeve pipe 8.
Provide several concrete mode that capacitor is made below.
Adopt the electrolyte of prescription 1 in the present embodiment.
The aluminium tongue of used positive lead-out wire and aluminium stalk portion formation voltage are 300V, aluminium purity 99.97%.
Used plug is that hardness is the ethylene-propylene diene copolymer (EPMD) of 72IRHD, whole chlorinty 60PPM.
Table 3 is data of endurance test, and the condition of test is 125 ℃, applies the operating voltage that contains ripple current, and the size of ripple current is 227mA/100HZ, test duration 5000 hours.
Table 3. 250V68 μ F, 125 ℃ of endurance test data of 16x30
| Time (h) | 0 | 1000 | 2000 | 3000 | 4000 | 5000 |
| Capacitance C (μ F) | 66.86 | 66.97 | 67.09 | 66.77 | 66.07 | 64.60 |
| Volume change rate (%) | 0 | 0.17 | 0.35 | -0.13 | -1.17 | -3.37 |
| Loss value tg δ (%) | 2.43 | 3.79 | 5.15 | 7.47 | 11.16 | 14.26 |
| Leakage current I (μ A) | 13.1 | 15.0 | 16.2 | 18.3 | 15.5 | 14.5 |
Adopt the electrolyte of prescription 2 in the present embodiment.
The aluminium tongue of used positive lead-out wire and aluminium stalk portion formation voltage are 600V, aluminium purity 99.97%.
Used plug is that hardness is the ethylene-propylene diene copolymer (EPMD) of 83IRHD, whole chlorinty 60PPM.
Table 4 is data of endurance test, and the condition of test is 125 ℃, applies the operating voltage that contains ripple current, and the size of ripple current is 158mA/100HZ, test duration 5000 hours.
Table 4. 450V33 μ F, 125 ℃ of endurance test data of 16x30
| Time (h) | 0 | 1000 | 2000 | 3000 | 4000 | 5000 |
| Capacitance C (μ F) | 30.85 | 30.47 | 29.54 | 28.75 | 28.01 | 26.32 |
| Volume change rate (%) | 0 | -1.23 | -4.25 | -6.8 | -9.2 | -14.68 |
| Loss value tg δ (%) | 4.78 | 6.267 | 9.24 | 12.14 | 13.45 | 17.43 |
| Leakage current I (μ A) | 20.5 | 8.36 | 9.73 | 11.07 | 11.21 | 10.21 |
The example product through 125 ℃ of endurance tests in 5000 hours after, electrical quantity is good, outward appearance is good, dissects the phenomenon that product after the test finds no anodic attack.
The foregoing description is a preferred implementation of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under spirit of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (5)
1, a kind of electrolyte is characterized in that comprising the component of following weight portion: solvent 85-88 part, solute 5.5-11 part, additive 1-1.5 part and high-temperature stabiliser 3-5 part;
Described solvent is at least a in ethylene glycol, diethylene glycol (DEG) and the polyethylene glycol; Described solute is boric acid, ammonium adipate, 1, at least a in 7-ammonium sebacate, ammonium sebacate, ammonium benzoate and the dodecandioic acid; Described additive is at least a in polyvinyl alcohol, ammonium hypophosphite, ammonium dihydrogen phosphate, paranitrobenzoic acid and the p-nitrophenyl methyl alcohol; Described high-temperature stabiliser is a sweet mellow wine.
2, a kind of 125 DEG C high temperature long life aluminum electrolysis capacitor, this capacitor comprises to be wound on by cathode foil, anode foil, electrolytic paper and lead-out wire to be made capacitor core bag, electrolyte, aluminum hull together and seals plug, and it is characterized in that: described electrolyte is the described electrolyte of claim 1.
3,125 DEG C high temperature long life aluminum electrolysis capacitor according to claim 2 is characterized in that: the described plug that seals adopts ethylene-propylene diene copolymer, the whole chlorinty≤60PPM of this plug, and hardness is 72～83IRHD.
4,125 DEG C high temperature long life aluminum electrolysis capacitor according to claim 2, it is characterized in that: described lead-out wire is made up of aluminium tongue, aluminium stalk portion and the zinc-plated steel wire of copper facing, be divided into positive lead-out wire that is connected with cathode foil and the negative lead-out wire that is connected with anode foil, the aluminium tongue of described positive lead-out wire and aluminium stalk portion all change into processing through overvoltage, formation voltage is 300～600V, aluminium purity 〉=99.97%.
5, the preparation method of each described 125 DEG C high temperature long life aluminum electrolysis capacitor among a kind of claim 2-4: be cathode foil, anode foil, electrolytic paper and lead-out wire to be wound on make described capacitor core bag together, after this core wraps in and flooded described electrolyte, put into described aluminum hull, seal with described plug and form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102204205A CN101483101A (en) | 2008-12-25 | 2008-12-25 | 125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102204205A CN101483101A (en) | 2008-12-25 | 2008-12-25 | 125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101483101A true CN101483101A (en) | 2009-07-15 |
Family
ID=40880162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102204205A Pending CN101483101A (en) | 2008-12-25 | 2008-12-25 | 125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101483101A (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866752A (en) * | 2010-06-23 | 2010-10-20 | 深圳清华大学研究院 | Electrolyte for driving ultrahigh voltage large-sized aluminium electrolytic capacitor and solute thereof |
| CN102013325A (en) * | 2010-09-22 | 2011-04-13 | 湖南省衡阳华高电子有限公司 | Electrolyte of wide-temperature long-life patch aluminium electrolytic capacitor and preparation method thereof |
| CN102074357A (en) * | 2010-12-24 | 2011-05-25 | 东莞宏强电子有限公司 | Preparation method, product and application of electrolyte for high voltage aluminum electrolytic capacitor |
| CN102222569A (en) * | 2011-03-31 | 2011-10-19 | 肇庆绿宝石电子有限公司 | Long-life aluminum electrolytic capacitor and manufacturing method thereof |
| CN102426923A (en) * | 2011-08-18 | 2012-04-25 | 青海金阳光电子材料股份有限公司 | Manufacturing method of electrode foil used in high pressure on plateau |
| CN103680982A (en) * | 2013-12-25 | 2014-03-26 | 佛山市高明区利明电子有限公司 | 250V electrolytic capacitor and production process thereof |
| CN103943363A (en) * | 2014-05-06 | 2014-07-23 | 广东风华高新科技股份有限公司 | Electrolyte of aluminum electrolytic capacitor, preparation method thereof and aluminum electrolytic capacitor |
| CN106024394A (en) * | 2016-08-03 | 2016-10-12 | 益阳市鹏程科技发展有限公司 | Capacitor with Z-shaped pin and production process thereof |
| CN107221438A (en) * | 2017-06-30 | 2017-09-29 | 东莞市久制电子有限公司 | A kind of super-pressure electrolyte solute and preparation method thereof |
| CN107393718A (en) * | 2017-08-16 | 2017-11-24 | 韶关东阳光电容器有限公司 | High temperature resistant aluminium electrolutic capacitor |
| CN108063052A (en) * | 2017-12-15 | 2018-05-22 | 肇庆绿宝石电子科技股份有限公司 | A kind of aluminium electrolutic capacitor and its manufacturing method in high pressure high temperature resistance and long service life |
| CN106683889B (en) * | 2016-11-29 | 2018-08-21 | 无锡泰威电子有限公司 | 130 DEG C of superhigh temperature Working electrolytes of one kind and preparation method thereof |
| CN110085420A (en) * | 2019-03-29 | 2019-08-02 | 南通江海电容器股份有限公司 | A kind of Flash capacitor |
| CN110223844A (en) * | 2019-03-29 | 2019-09-10 | 南通江海电容器股份有限公司 | A kind of super-pressure lead type capacitor and preparation method |
| CN110718394A (en) * | 2019-08-15 | 2020-01-21 | 深圳华容伟业电子有限公司 | Manufacturing method of high-voltage aluminum electrolytic capacitor with low electric leakage and high reliability |
| CN112687472A (en) * | 2020-12-03 | 2021-04-20 | 盐城星晨科技有限公司 | High-frequency electrolyte and preparation method thereof |
-
2008
- 2008-12-25 CN CNA2008102204205A patent/CN101483101A/en active Pending
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101866752A (en) * | 2010-06-23 | 2010-10-20 | 深圳清华大学研究院 | Electrolyte for driving ultrahigh voltage large-sized aluminium electrolytic capacitor and solute thereof |
| CN102013325A (en) * | 2010-09-22 | 2011-04-13 | 湖南省衡阳华高电子有限公司 | Electrolyte of wide-temperature long-life patch aluminium electrolytic capacitor and preparation method thereof |
| CN102013325B (en) * | 2010-09-22 | 2016-01-13 | 湖南省衡阳华高电子有限公司 | Electrolyte of wide temperature long-life patch aluminium electrolytic capacitor and preparation method thereof |
| CN102074357B (en) * | 2010-12-24 | 2012-11-21 | 东莞宏强电子有限公司 | Preparation method, product and application of electrolyte for high voltage aluminum electrolytic capacitor |
| CN102074357A (en) * | 2010-12-24 | 2011-05-25 | 东莞宏强电子有限公司 | Preparation method, product and application of electrolyte for high voltage aluminum electrolytic capacitor |
| CN102222569A (en) * | 2011-03-31 | 2011-10-19 | 肇庆绿宝石电子有限公司 | Long-life aluminum electrolytic capacitor and manufacturing method thereof |
| CN102222569B (en) * | 2011-03-31 | 2013-02-06 | 肇庆绿宝石电子有限公司 | Long-life aluminum electrolytic capacitor and manufacturing method thereof |
| CN102426923A (en) * | 2011-08-18 | 2012-04-25 | 青海金阳光电子材料股份有限公司 | Manufacturing method of electrode foil used in high pressure on plateau |
| CN103680982A (en) * | 2013-12-25 | 2014-03-26 | 佛山市高明区利明电子有限公司 | 250V electrolytic capacitor and production process thereof |
| CN103680982B (en) * | 2013-12-25 | 2017-01-04 | 佛山市高明区利明电子有限公司 | A kind of 250V electrolysis condenser and production technology thereof |
| CN103943363A (en) * | 2014-05-06 | 2014-07-23 | 广东风华高新科技股份有限公司 | Electrolyte of aluminum electrolytic capacitor, preparation method thereof and aluminum electrolytic capacitor |
| CN106024394A (en) * | 2016-08-03 | 2016-10-12 | 益阳市鹏程科技发展有限公司 | Capacitor with Z-shaped pin and production process thereof |
| CN106683889B (en) * | 2016-11-29 | 2018-08-21 | 无锡泰威电子有限公司 | 130 DEG C of superhigh temperature Working electrolytes of one kind and preparation method thereof |
| CN107221438A (en) * | 2017-06-30 | 2017-09-29 | 东莞市久制电子有限公司 | A kind of super-pressure electrolyte solute and preparation method thereof |
| CN107221438B (en) * | 2017-06-30 | 2019-04-26 | 东莞市久制电子有限公司 | A kind of super-pressure electrolyte solute and preparation method thereof |
| CN107393718A (en) * | 2017-08-16 | 2017-11-24 | 韶关东阳光电容器有限公司 | High temperature resistant aluminium electrolutic capacitor |
| CN107393718B (en) * | 2017-08-16 | 2019-09-20 | 韶关东阳光电容器有限公司 | High temperature resistant aluminium electrolutic capacitor |
| CN108063052A (en) * | 2017-12-15 | 2018-05-22 | 肇庆绿宝石电子科技股份有限公司 | A kind of aluminium electrolutic capacitor and its manufacturing method in high pressure high temperature resistance and long service life |
| CN110085420A (en) * | 2019-03-29 | 2019-08-02 | 南通江海电容器股份有限公司 | A kind of Flash capacitor |
| CN110223844A (en) * | 2019-03-29 | 2019-09-10 | 南通江海电容器股份有限公司 | A kind of super-pressure lead type capacitor and preparation method |
| CN110223844B (en) * | 2019-03-29 | 2021-10-22 | 南通江海电容器股份有限公司 | Ultrahigh voltage lead type capacitor and preparation method thereof |
| CN110718394A (en) * | 2019-08-15 | 2020-01-21 | 深圳华容伟业电子有限公司 | Manufacturing method of high-voltage aluminum electrolytic capacitor with low electric leakage and high reliability |
| CN110718394B (en) * | 2019-08-15 | 2021-11-02 | 深圳华容伟业电子有限公司 | Manufacturing method of high-voltage aluminum electrolytic capacitor with low electric leakage and high reliability |
| CN112687472A (en) * | 2020-12-03 | 2021-04-20 | 盐城星晨科技有限公司 | High-frequency electrolyte and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101483101A (en) | 125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid | |
| CN101447337A (en) | Long-service-life aluminum electrolytic capacitor for energy-saving lamp, method for preparing same, and special electrolyte | |
| CN101504887B (en) | Manufacturing method for solid aluminum electrolytic capacitor | |
| CN109192509B (en) | 600V high-voltage high-temperature-resistant long-life aluminum electrolytic capacitor and manufacturing method thereof | |
| CN1155031C (en) | Electrolyte solution and electrolyte capacitor using said electrolyte solution | |
| CN102222569B (en) | Long-life aluminum electrolytic capacitor and manufacturing method thereof | |
| CN1862729B (en) | High-specific volume cathode foil solid electrolytic capacitor and preparing method thereof | |
| CN103560006B (en) | Solid-liquid mixed type aluminium electrolutic capacitor preparation method | |
| CN1511327A (en) | Electrolytic solution for electrolytic capacitor and electrolytic capacitor using it | |
| CN101740236A (en) | Method of manufacturing solid electrolytic capacitor | |
| CN101326599A (en) | Electrolytic capacitor | |
| CN102867651A (en) | High-reliability solid electrolytic capacitor manufacturing method | |
| CN108767319A (en) | Formation method of lithium ion battery | |
| CN109461586B (en) | Preparation method for reducing leakage current of low-voltage electrode foil for aluminum electrolytic capacitor | |
| TW201526047A (en) | Composite electrode and electrolytic capacitor | |
| CN101916671A (en) | Preparation method of solid electrolytic capacitor capable of reducing ESR and enhancing electrostatic capacitance | |
| CN104681278A (en) | High-voltage aluminium electrolysis capacitor | |
| CN105977030A (en) | Preparation method for ultra-high-capacity tantalum capacitor | |
| KR20140136218A (en) | A method of a secondary battery and collector having non-etching | |
| CN102983007A (en) | Novel nano aluminum electrolytic capacitor | |
| KR20140136220A (en) | A method of a secondary battery and collector by electric etching | |
| CN102637535A (en) | Preparation method of solid electrolytic capacitor with high voltage and large capacity | |
| CN112582181B (en) | Electrolyte for low-voltage aluminum electrolytic capacitor with high hydration resistance and preparation method | |
| CN112831816B (en) | Anode foil and preparation method thereof | |
| CN102842434B (en) | A kind of cathode preparation method of electrolytic capacitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20090715 |