CN107039184A - A kind of solid-state aluminum electrolytic capacitor and preparation method thereof - Google Patents
A kind of solid-state aluminum electrolytic capacitor and preparation method thereof Download PDFInfo
- Publication number
- CN107039184A CN107039184A CN201710212913.3A CN201710212913A CN107039184A CN 107039184 A CN107039184 A CN 107039184A CN 201710212913 A CN201710212913 A CN 201710212913A CN 107039184 A CN107039184 A CN 107039184A
- Authority
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- China
- Prior art keywords
- monomer
- oxidant
- conducting polymer
- sodium sulfate
- core
- 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
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- 239000003990 capacitor Substances 0.000 title claims abstract description 24
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 19
- 238000002360 preparation method Methods 0.000 title claims description 7
- 239000000178 monomer Substances 0.000 claims abstract description 28
- 239000011888 foil Substances 0.000 claims abstract description 26
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 16
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 16
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims abstract description 15
- 239000007800 oxidant agent Substances 0.000 claims abstract description 15
- 230000001590 oxidative effect Effects 0.000 claims abstract description 15
- 239000002322 conducting polymer Substances 0.000 claims abstract description 14
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 14
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 12
- GKWLILHTTGWKLQ-UHFFFAOYSA-N 2,3-dihydrothieno[3,4-b][1,4]dioxine Chemical group O1CCOC2=CSC=C21 GKWLILHTTGWKLQ-UHFFFAOYSA-N 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 8
- FPVGTPBMTFTMRT-NSKUCRDLSA-L fast yellow Chemical compound [Na+].[Na+].C1=C(S([O-])(=O)=O)C(N)=CC=C1\N=N\C1=CC=C(S([O-])(=O)=O)C=C1 FPVGTPBMTFTMRT-NSKUCRDLSA-L 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 15
- 238000005470 impregnation Methods 0.000 claims description 8
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000002386 leaching Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000011259 mixed solution Substances 0.000 claims description 3
- 150000002085 enols Chemical class 0.000 claims 1
- 235000019441 ethanol Nutrition 0.000 claims 1
- 230000003068 static effect Effects 0.000 abstract description 4
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 7
- 239000004411 aluminium Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 239000003945 anionic surfactant Substances 0.000 description 2
- 229910052593 corundum Inorganic materials 0.000 description 2
- SNRUBQQJIBEYMU-UHFFFAOYSA-N dodecane Chemical compound CCCCCCCCCCCC SNRUBQQJIBEYMU-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000011244 liquid electrolyte Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 229910001845 yogo sapphire Inorganic materials 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- IDGUHHHQCWSQLU-UHFFFAOYSA-N ethanol;hydrate Chemical compound O.CCO IDGUHHHQCWSQLU-UHFFFAOYSA-N 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/15—Solid electrolytic capacitors
- H01G9/151—Solid electrolytic capacitors with wound foil electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/004—Details
- H01G9/04—Electrodes or formation of dielectric layers thereon
- H01G9/042—Electrodes or formation of dielectric layers thereon characterised by the material
- H01G9/0425—Electrodes or formation of dielectric layers thereon characterised by the material specially adapted for cathode
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Polyoxymethylene Polymers And Polymers With Carbon-To-Carbon Bonds (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
A kind of solid-state aluminum electrolytic capacitor, including anode foils, Cathode Foil and the electrolytic paper between anode foils Cathode Foil, anode foils, Cathode Foil and the co-wound city core bag of electrolytic paper, core, which is wrapped to contain, is soaked with monomer and oxidant, monomer and oxidant are formed in core bag contains dodecyl sodium sulfate and polyvinyl alcohol in conducting polymer, conducting polymer；Monomer is EDOT, and oxidant is to toluene yellow acid iron；Mass percent of the dodecyl sodium sulfate in conducting polymer is 0.01% 1%, and mass percent of the polyvinyl alcohol in conducting polymer is 0.01% 2%.Actual negative electrode in the solid-state aluminum electrolytic capacitor of the present invention is thermally-stabilised good, and static capacity is high and resistivity is small, and the capacitor equivalent series resistance that this allows for producing is small.
Description
Technical field
The present invention relates to a kind of aluminium electrolutic capacitor, more particularly to a kind of solid-state aluminum electrolytic capacitor and preparation method thereof.
Background technology
With the high frequency of electronic equipment power source, the demand of compactization and surface mounting technology development, aluminium electroloysis electricity
Container progressively develops towards miniaturization, Large Copacity, low ESR and high reliability.Due to liquid electrolyte aluminium electroloysis electricity
Container is difficult to bear high temperature reflux sweating heat, it is often more important that liquid electrolyte electrical conductivity is low so that the frequency characteristic of capacitor
Difference, it is difficult to adapt to the trend that electronic equipment develops to high frequency.With the development of technology, solid aluminum electrolytic capacitor manufacturing technology
It is increasingly mature, the problem of solving aluminium electrolutic capacitor miniaturization, Large Copacity, but actual negative electrode PEDT is thin in solid-state capacitor
The resistivity of film is high, easily departs from from anode foils.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art there is provided a kind of PEDT film resiativities are low simultaneously
And be difficult from solid-state aluminum electrolytic capacitor of anode foils disengaging and preparation method thereof.
In order to solve the above technical problems, technical scheme proposed by the present invention is：A kind of solid-state aluminum electrolytic capacitor, including sun
Pole paper tinsel, Cathode Foil and the electrolytic paper between anode foils Cathode Foil, anode foils, Cathode Foil and the co-wound city core of electrolytic paper
Bag, the core is wrapped containing monomer and oxidant is soaked with, and the monomer and oxidant form conducting polymer in core bag, described to lead
Contain dodecyl sodium sulfate and polyvinyl alcohol in electric polymer；The monomer is EDOT, and the oxidant is to toluene yellow acid
Iron；Mass percent of the dodecyl sodium sulfate in conducting polymer is 0.01%-1%, and the polyvinyl alcohol is in conduction
Mass percent in polymer is 0.01%-2%.
2nd, the preparation method of solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that：Including following step
Suddenly：1）Core is included into leaching monomer solution, 1.1）Monomer is prepared, EDOT monomers are added in absolute ethyl alcohol, EDOT monomers and nothing
The mol ratio of water-ethanol is 1：10, it is uniform with supersonic oscillations；1.2）Dodecyl sodium sulfate and polyvinyl alcohol are added, and is used
Supersonic oscillations are uniform, and dodecyl sodium sulfate concentration in mixed solution is 0-0.02mol/L, and the polyvinyl alcohol exists
Mass fraction in solution is 1%-4%；1.3）By core comprising being immersed in monomer solution, the impregnation time is 10-20 minutes；
2）Dry；
3）Oxidant is impregnated with, the impregnation time is 5-10 minutes；
4）Polymerization, polymerization technique is divided into two 60~65 DEG C of first stage in stage temperature, polymerize 25~30min, second stage temperature
165~170 DEG C of degree, 0~35min of polyase 13.
In the present invention, it is dissolved in as the dodecyl sodium sulfate of anion surfactant after water, pH value is 7-8, is in
Alkaline state.After appropriate addition anion surfactant dodecyl sodium sulfate, it can not only improve the surface of solution
Power, improves solution impregnation and dispersiveness, and do not interfere with the pH value of electrochemical solution；Add nonionic surfactant
After PVA, it can not only improve solution impregnation in electrochemical solution and improve the surface tension of solution, improve PEDT films and sun
Contact between the paper tinsel of pole so that resistivity reduces；And the electrochemical solution containing 1%-4%PVA can penetrate into anode foils
In hole so that during electropolymerization monomer can be allowed to polymerize in hole, so as to improve the static capacity of product.
Because the thermal coefficient of expansion of PEDT films is different from dielectric alundum (Al2O3) so that deposited between PEDT moulds and deielectric-coating
In stress.With the increase of product both end voltage, the internal calorific power of capacitor is increased, and the stress between them becomes big, therefore
Alundum (Al2O3) insulator may be caused to produce crack or rupture, PEDT films are even resulted in and break-off is produced from anode foils,
So as to cause capacitor failure.The toughness of PEDT films can be improved after adding PVA, mechanical stress is substantially reduced to three two moulds of oxidation
I.e. dielectric destruction.
Compared with prior art, the advantage of the invention is that：Actual negative electrode in the solid-state aluminum electrolytic capacitor of the present invention
Thermally-stabilised good, static capacity is high and resistivity is small, and the capacitor equivalent series resistance that this allows for producing is small.
Embodiment
For the ease of understanding the present invention, present invention work more comprehensively, is meticulously described below in conjunction with preferred embodiment,
But protection scope of the present invention is not limited to embodiment in detail below.
It should be strongly noted that when a certain element, to be described as " be fixed on, be fixed in, be connected to or be communicated in " another
When on element, it can be directly fixed, affixed, connection or connect on another element or by connecting in the middle of other
Fitting is indirectly fixed, affixed, connection or connection are on another element.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention
Protection domain.
Embodiment
A kind of solid-state aluminum electrolytic capacitor, including anode foils, Cathode Foil and the electrolytic paper between anode foils Cathode Foil,
Anode foils, Cathode Foil and the co-wound city core bag of electrolytic paper, core are wrapped containing monomer and oxidant is soaked with, and monomer and oxidant are in core
Formed in bag and contain dodecyl sodium sulfate and polyvinyl alcohol in conducting polymer, conducting polymer；Monomer is EDOT, oxidant
For to toluene yellow acid iron；Mass percent of the dodecyl sodium sulfate in conducting polymer is 0.01%-1%, and polyvinyl alcohol exists
Mass percent in conducting polymer is 0.01%-2%.
The preparation method of the solid-state aluminum electrolytic capacitor of the present embodiment, comprises the following steps：1）Core is molten comprising leaching monomer
Liquid, 1.1）Monomer is prepared, EDOT monomers are added in absolute ethyl alcohol, the mol ratio of EDOT monomers and absolute ethyl alcohol is 1：10,
It is uniform with supersonic oscillations；1.2）Dodecyl sodium sulfate and polyvinyl alcohol are added, and, dodecane uniform with supersonic oscillations
Base sodium sulfonate concentration in mixed solution is 0.02mol/L, and the mass fraction of polyvinyl alcohol in the solution is 4%；1.3）By core bag
Containing being immersed in monomer solution, the impregnation time is 20 minutes；
2）Dry；
3）Oxidant is impregnated with, the impregnation time is 10 minutes；
4）Polymerization, polymerization technique is divided into two 65 DEG C of first stage in stage temperature, polyase 13 0min, 165 DEG C of second stage temperature,
Polyase 13 0min.
Actual negative electrode in the solid-state aluminum electrolytic capacitor of the present embodiment is thermally-stabilised good, static capacity height and resistivity
Small, the capacitor equivalent series resistance that this allows for producing is small.
Claims (2)
1. a kind of solid-state aluminum electrolytic capacitor, including anode foils, Cathode Foil and the electrolytic paper between anode foils Cathode Foil, sun
Pole paper tinsel, Cathode Foil and the co-wound city core bag of electrolytic paper, it is characterised in that：The core, which is wrapped to contain, is soaked with monomer and oxidant, institute
State monomer and oxidant and formed in core bag and contain dodecyl sodium sulfate and poly- second in conducting polymer, the conducting polymer
Enol；The monomer is EDOT, and the oxidant is to toluene yellow acid iron；The dodecyl sodium sulfate is in conducting polymer
Mass percent be 0.01%-1%, mass percent of the polyvinyl alcohol in conducting polymer be 0.01%-2%.
2. the preparation method of solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that：Comprise the following steps：
1）Core is included into leaching monomer solution, 1.1）Monomer is prepared, EDOT monomers are added in absolute ethyl alcohol, EDOT monomers and anhydrous second
The mol ratio of alcohol is 1：10, it is uniform with supersonic oscillations；1.2）Add dodecyl sodium sulfate and polyvinyl alcohol, and with ultrasonic
Ripple shaken well, dodecyl sodium sulfate concentration in mixed solution is 0-0.02mol/L, and the polyvinyl alcohol is in solution
In mass fraction be 1%-4%；1.3）By core comprising being immersed in monomer solution, the impregnation time is 10-20 minutes；
2）Dry；
3）Oxidant is impregnated with, the impregnation time is 5-10 minutes；
4）Polymerization, polymerization technique is divided into two 60~65 DEG C of first stage in stage temperature, polymerize 25~30min, second stage temperature
165~170 DEG C of degree, 0~35min of polyase 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212913.3A CN107039184B (en) | 2017-04-01 | 2017-04-01 | A kind of solid-state aluminum electrolytic capacitor and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710212913.3A CN107039184B (en) | 2017-04-01 | 2017-04-01 | A kind of solid-state aluminum electrolytic capacitor and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107039184A true CN107039184A (en) | 2017-08-11 |
| CN107039184B CN107039184B (en) | 2019-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710212913.3A Expired - Fee Related CN107039184B (en) | 2017-04-01 | 2017-04-01 | A kind of solid-state aluminum electrolytic capacitor and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107039184B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270150A (en) * | 2018-09-29 | 2019-01-25 | 东莞东阳光科研发有限公司 | A kind of aluminium electrolutic capacitor capacity is than characterizing method and device |
| CN111403177A (en) * | 2020-03-26 | 2020-07-10 | 湖州一力电子有限公司 | Manufacturing method of ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901113A (en) * | 2006-07-11 | 2007-01-24 | 福建国光电子科技股份有限公司 | Process for preparing conductive polymer cathode material of solid sheet type aluminum electrolytic capacitor |
| CN102543491A (en) * | 2012-02-29 | 2012-07-04 | 万星光电子(东莞)有限公司 | Manufacturing method for laminated solid aluminium electrolytic capacitor |
| CN102812068A (en) * | 2010-03-01 | 2012-12-05 | 日本贵弥功株式会社 | Polymerization fluid, process for production thereof, transparent film made from the polymerization fluid, and transparent electrode |
| CN105551807A (en) * | 2016-03-07 | 2016-05-04 | 湖南艾华集团股份有限公司 | Square solid-state aluminum electrolytic capacitor with flexible package and manufacturing method thereof |
-
2017
- 2017-04-01 CN CN201710212913.3A patent/CN107039184B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1901113A (en) * | 2006-07-11 | 2007-01-24 | 福建国光电子科技股份有限公司 | Process for preparing conductive polymer cathode material of solid sheet type aluminum electrolytic capacitor |
| CN102812068A (en) * | 2010-03-01 | 2012-12-05 | 日本贵弥功株式会社 | Polymerization fluid, process for production thereof, transparent film made from the polymerization fluid, and transparent electrode |
| CN102543491A (en) * | 2012-02-29 | 2012-07-04 | 万星光电子(东莞)有限公司 | Manufacturing method for laminated solid aluminium electrolytic capacitor |
| CN105551807A (en) * | 2016-03-07 | 2016-05-04 | 湖南艾华集团股份有限公司 | Square solid-state aluminum electrolytic capacitor with flexible package and manufacturing method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109270150A (en) * | 2018-09-29 | 2019-01-25 | 东莞东阳光科研发有限公司 | A kind of aluminium electrolutic capacitor capacity is than characterizing method and device |
| CN109270150B (en) * | 2018-09-29 | 2022-11-04 | 东莞东阳光科研发有限公司 | Method and device for representing capacity ratio of aluminum electrolytic capacitor |
| CN111403177A (en) * | 2020-03-26 | 2020-07-10 | 湖州一力电子有限公司 | Manufacturing method of ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
| CN111403177B (en) * | 2020-03-26 | 2021-08-06 | 湖州新江浩电子有限公司 | Manufacturing method of ultra-wide temperature range high-voltage-resistant aluminum electrolytic capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107039184B (en) | 2019-10-22 |
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