CN107316747A - The production method of low ESR laminations solid-state aluminum electrolytic capacitor - Google Patents
The production method of low ESR laminations solid-state aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN107316747A CN107316747A CN201710528416.4A CN201710528416A CN107316747A CN 107316747 A CN107316747 A CN 107316747A CN 201710528416 A CN201710528416 A CN 201710528416A CN 107316747 A CN107316747 A CN 107316747A
- Authority
- CN
- China
- Prior art keywords
- solid
- silver paste
- electric capacity
- lamination
- laminations
- 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
- 239000003990 capacitor Substances 0.000 title claims abstract description 39
- 238000003475 lamination Methods 0.000 title claims abstract description 38
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 19
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 17
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052709 silver Inorganic materials 0.000 claims abstract description 47
- 239000004332 silver Substances 0.000 claims abstract description 47
- 239000007787 solid Substances 0.000 claims abstract description 16
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 238000002360 preparation method Methods 0.000 claims abstract description 14
- 239000011248 coating agent Substances 0.000 claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 229920002521 macromolecule Polymers 0.000 claims 1
- 229920000642 polymer Polymers 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002322 conducting polymer Substances 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007784 solid electrolyte Substances 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
-
- 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
- H01G9/0029—Processes of manufacture
-
- 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
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The production method of low ESR laminations solid-state aluminum electrolytic capacitor, comprises the following steps, 1）The lamination electric capacity monolithic for being covered with electroconductive polymer layer and carbon-coating is immersed in silver paste, silver paste liquid level shields the lower edge of tree lace less than electric capacity monolithic；2）Electric capacity monolithic is soaked after silver paste, semi-solid preparation at a temperature of room temperature or 40 60 degrees Celsius is placed on so that silver layer is in the state of half softening, and the solvent in silver paste is volatilized；3）Electric capacity monolithic after semi-solid preparation is subjected to lamination formation fuse, the good capacitor core of lamination is placed in extrusion die compressed afterwards；4）The extrusion die for being extruded with capacitor core is placed in high temperature oven so that the elargol of silver paste and the lamination coating of semi-solid preparation is solidified.The ESR for the capacitor that the production method of the low ESR laminations solid-state aluminum electrolytic capacitor of the present invention is produced is small.
Description
Technical field
The present invention relates to a kind of lamination solid-state capacitor, more particularly to a kind of low ESR laminations solid-state aluminum electrolytic capacitor
Production method.
Background technology
Lamination solid-state aluminum electrolytic capacitor is to be used as solid electrolyte using the conducting polymer materials with high conductivity
Novel slice type electronic element products its have that volume is smaller, performance more preferably, wide temperature, long-life, high reliability and high-environmental etc. it is all
Many advantages, it is adaptable to miniaturization of electronic products, high frequency, high speed, highly reliable, high-environmental development trend and surface mount skill
Art (SMT) requirement.Equivalent series resistance（ESR）As one of most important classical insulation of capacitor, the ESR of electric capacity is not only
The effect of electric capacity is directly affected, or even can also cause the serious consequence such as circuit malfunction or even damage, and the aluminium electroloysis of lamination solid-state is electric
Container is well-known with ultralow ESR characteristics in all kinds of capacitors.The low ESR characteristics of lamination sheet type solid capacitor except with electric capacity in itself
Had outside the Pass using parallel-connection structure, be also relevant using silver paste interconnection with electric capacity negative pole（The good electric conductivity of silver paste）So that
Electric capacity has relatively low ESR.The contact of each elementary layer outside silver paste inside electric capacity, and the compaction rate of silver layer in itself can be straight
Connect the final ESR characteristics for having influence on product.
The content of the invention
The technical problem to be solved in the present invention is to overcome the deficiencies in the prior art high there is provided a kind of consistency of silver layer, etc.
Imitate the production method of the small lamination solid-state aluminum electrolytic capacitor of series resistance.
In order to solve the above technical problems, technical scheme proposed by the present invention is：Low ESR laminations solid-state aluminum electrolytic capacitor
Production method, comprises the following steps, and 1）The lamination electric capacity monolithic for being covered with electroconductive polymer layer and carbon-coating is immersed in silver paste, silver paste
Liquid level shields the lower edge of tree lace less than electric capacity monolithic；2）Electric capacity monolithic is soaked after silver paste, room temperature or 40-60 degrees Celsius is placed on
At a temperature of semi-solid preparation so that silver layer is in the state of half softening, and the solvent in silver paste is volatilized；3）After semi-solid preparation
Electric capacity monolithic carries out lamination formation fuse, the good capacitor core of lamination is placed in extrusion die compressed afterwards；4）Will extruding
The extrusion die for having capacitor core is placed in high temperature oven so that the elargol of silver paste and the lamination coating of semi-solid preparation is consolidated
Change.The silver paste of semi-solid preparation can be in extrusion process due to maintaining certain flexibility after lamination so that silver layer will not squeezed
Destroyed during pressure, it is also possible that the silver layer on each monolithic is fully contacted, so as to reduce silver layer contact resistance.In addition, squeezing
Solidifying silver paste under pressure condition can cause the silver layer of electric capacity to reach higher consistency, so that further caused by reduction silver layer
Resistance.
The production method of above-mentioned low ESR laminations solid-state aluminum electrolytic capacitor, it is preferred that solidified capacitor core
Afterwards, it is put into encapsulating mould and carries out resin-encapsulated, and carries out burn-in test.Capacitor core is subjected to resin-encapsulated, such energy
Enough reduce the size of capacitor, and can be without using metal shell and leather point.
The production method of above-mentioned low ESR laminations solid-state aluminum electrolytic capacitor, it is preferred that the extrusion die is included by upper
Briquetting, lower lock block, limit for height piece, residual plate and fastening screw, the limit for height piece both sides are respectively arranged with upper holder block and lower lock block, institute
State and Antisticking is provided between limit for height piece and upper holder block, Antisticking is also equipped between the limit for height piece and lower lock block；It is described tight
Gu screw is arranged on upper holder block, and upper holder block and lower lock block are linked together through two pieces of Antistickings and limit for height piece.
The production method of above-mentioned low ESR laminations solid-state aluminum electrolytic capacitor, it is preferred that the upper holder block and lower lock block by
Steel are made endlessly, and limit for height piece is the stainless steel substrates with preset thickness.In the present invention, limit for height piece primarily serves control
The effect of laminated body, capacitor thickness, this thickness is designed according to the thickness of stacked capacitor.Residual plate, which is primarily served, prevents silver
The effect that slurry and silver paste are sticked on extrusion die, the material of Antisticking preferentially selects polytetrafluoroethylene (PTFE).
Compared with prior art, the advantage of the invention is that：The life of the low ESR laminations solid-state aluminum electrolytic capacitor of the present invention
The capacitor that production method is produced, electric capacity monolithic is after impregnation silver paste, without hot setting, and low temperature half is solid in only carrying out
Change, after element stack is integrated, hot setting is carried out under squeezed state, it is favourable to reduce the resistance of silver layer in itself simultaneously,
Advantageously reduce the contact resistance between each unit silver layer.
Brief description of the drawings
Fig. 1 is the structural representation of electric capacity monolithic in the present invention.
Fig. 2 is the structural representation of extrusion die in the present invention.
Marginal data
1st, electroconductive polymer layer；2nd, carbon-coating；3rd, tree lace is shielded；4th, silver paste coating；5th, upper holder block；6th, lower lock block；7th, limit for height piece；8、
Residual plate；9th, fastening screw.
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
The production method of low ESR laminations solid-state aluminum electrolytic capacitor, comprises the following steps, 1）Electroconductive polymer layer will be covered with
1 and carbon-coating 2 lamination electric capacity monolithic immersion silver paste in, silver paste liquid level less than electric capacity monolithic shield tree lace 3 lower edge；2）By electric capacity
After monolithic leaching silver paste, semi-solid preparation at a temperature of room temperature or 50 degrees Celsius is placed on so that silver layer is in the state of half softening, and
And the solvent in silver paste volatilizees, so as to improve the compactness of silver paste；3）Electric capacity monolithic after semi-solid preparation is carried out into lamination to be formed
The good capacitor core of lamination, is placed in extrusion die compresses afterwards by fuse；4）The extrusion die of capacitor core will be extruded with
It is placed in high temperature oven so that the elargol of silver paste and the lamination coating of semi-solid preparation is solidified, and forms silver paste coating 4；5）Will
After capacitor core is solidified, it is put into encapsulating mould and carries out resin-encapsulated, and carry out burn-in test.
Extrusion die as Figure 1-Figure 2 is included by upper holder block 5, lower lock block 6, limit for height piece 7, residual plate 8 and fastening spiral shell
Silk 9, the both sides of limit for height piece 7 are respectively arranged with upper holder block 5 and lower lock block 6, and Antisticking 8 is provided between limit for height piece 7 and upper holder block 5,
Antisticking 8 is also equipped between limit for height piece 7 and lower lock block 6；Fastening screw 9 is arranged on upper holder block 5, and anti-sticking through two pieces
Plate 8 and limit for height piece 7 link together upper holder block 5 and lower lock block 6.Upper holder block 5 and lower lock block 6 are made by steel endlessly,
Limit for height piece 7 is the stainless steel substrates with preset thickness, and fastening screw is buttferfly-type fastening screw.
The capacitor that the production method of the low ESR laminations solid-state aluminum electrolytic capacitor of the present embodiment is produced, electric capacity list
Piece is after impregnation silver paste, without hot setting, low temperature semi-solid preparation in only carrying out, after element stack is integrated, in extruding shape
Hot setting is carried out under state, the resistance of favourable reduction silver layer in itself simultaneously, is also beneficial to reduce the contact between each unit silver layer
Resistance.
Claims (4)
1. the production method of low ESR laminations solid-state aluminum electrolytic capacitor, it is characterised in that：Comprise the following steps, 1）It will be covered with and lead
In the lamination electric capacity monolithic immersion silver paste of electric macromolecule layer and carbon-coating, silver paste liquid level shields the lower edge of tree lace less than electric capacity monolithic；
2）Electric capacity monolithic is soaked after silver paste, semi-solid preparation at a temperature of room temperature or 40-60 degrees Celsius is placed on so that silver layer is in medium-soft
The state of change, and the solvent in silver paste is volatilized；3）Electric capacity monolithic after semi-solid preparation is subjected to lamination formation fuse, afterwards will
The good capacitor core of lamination is placed on compression in extrusion die；4）The extrusion die for being extruded with capacitor core is placed on into high temperature to dry
In case so that the elargol of silver paste and the lamination coating of semi-solid preparation is solidified.
2. the production method of low ESR laminations solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that：By electricity
After appearance fuse is solidified, it is put into encapsulating mould and carries out resin-encapsulated, and carry out burn-in test.
3. the production method of low ESR laminations solid-state aluminum electrolytic capacitor according to claim 1, it is characterised in that：It is described
Extrusion die is included by upper holder block, lower lock block, limit for height piece, residual plate and fastening screw, and the limit for height piece both sides are respectively arranged with
Upper holder block and lower lock block, are provided with Antisticking, are also set between the limit for height piece and lower lock block between the limit for height piece and upper holder block
It is equipped with Antisticking；The fastening screw is arranged on upper holder block, and passes through two pieces of Antistickings and limit for height piece by upper holder block with
Briquetting links together.
4. the production method of low ESR laminations solid-state aluminum electrolytic capacitor according to claim 3, it is characterised in that：It is described
Upper holder block and lower lock block are made by steel endlessly, and limit for height piece is the stainless steel substrates with preset thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528416.4A CN107316747B (en) | 2017-07-01 | 2017-07-01 | The production method of low ESR lamination solid-state aluminum electrolytic capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710528416.4A CN107316747B (en) | 2017-07-01 | 2017-07-01 | The production method of low ESR lamination solid-state aluminum electrolytic capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107316747A true CN107316747A (en) | 2017-11-03 |
| CN107316747B CN107316747B (en) | 2019-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710528416.4A Expired - Fee Related CN107316747B (en) | 2017-07-01 | 2017-07-01 | The production method of low ESR lamination solid-state aluminum electrolytic capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107316747B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113990664A (en) * | 2020-07-27 | 2022-01-28 | 深圳市柏瑞凯电子科技股份有限公司 | Manufacturing method of laminated chip type solid aluminum electrolytic capacitor |
| CN114171322A (en) * | 2020-09-11 | 2022-03-11 | 丰宾电子（深圳）有限公司 | Lamination pressing method for solid electrolyte aluminum electrolytic capacitor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614725A (en) * | 2004-12-07 | 2005-05-11 | 宁夏星日电子股份有限公司 | Producing method for solid niobium capacitor |
| CN1649053A (en) * | 2005-02-05 | 2005-08-03 | 西安交通大学 | Method for producing solid sheet type electrolytic capacitor |
| CN101350253A (en) * | 2008-09-17 | 2009-01-21 | 中国振华（集团）新云电子元器件有限责任公司 | Solid electrolyte capacitor with ultra-low equivalent series resistance and manufacturing method thereof |
| CN201340806Y (en) * | 2008-11-21 | 2009-11-04 | 福建国光电子科技股份有限公司 | Solid electrolytic capacitor of cathode layer containing silver |
-
2017
- 2017-07-01 CN CN201710528416.4A patent/CN107316747B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1614725A (en) * | 2004-12-07 | 2005-05-11 | 宁夏星日电子股份有限公司 | Producing method for solid niobium capacitor |
| CN1649053A (en) * | 2005-02-05 | 2005-08-03 | 西安交通大学 | Method for producing solid sheet type electrolytic capacitor |
| CN101350253A (en) * | 2008-09-17 | 2009-01-21 | 中国振华（集团）新云电子元器件有限责任公司 | Solid electrolyte capacitor with ultra-low equivalent series resistance and manufacturing method thereof |
| CN201340806Y (en) * | 2008-11-21 | 2009-11-04 | 福建国光电子科技股份有限公司 | Solid electrolytic capacitor of cathode layer containing silver |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113990664A (en) * | 2020-07-27 | 2022-01-28 | 深圳市柏瑞凯电子科技股份有限公司 | Manufacturing method of laminated chip type solid aluminum electrolytic capacitor |
| CN113990664B (en) * | 2020-07-27 | 2023-03-21 | 深圳市柏瑞凯电子科技股份有限公司 | Manufacturing method of laminated chip type solid aluminum electrolytic capacitor |
| CN114171322A (en) * | 2020-09-11 | 2022-03-11 | 丰宾电子（深圳）有限公司 | Lamination pressing method for solid electrolyte aluminum electrolytic capacitor |
| CN114171322B (en) * | 2020-09-11 | 2023-06-30 | 丰宾电子科技股份有限公司 | Lamination pressing method for solid electrolyte aluminum electrolytic capacitor |
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| Publication number | Publication date |
|---|---|
| CN107316747B (en) | 2019-02-19 |
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Granted publication date: 20190219 |