CN107331521A - The manufacture method of polymer solid aluminum electrolytic capacitor - Google Patents
The manufacture method of polymer solid aluminum electrolytic capacitor Download PDFInfo
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- CN107331521A CN107331521A CN201710685815.1A CN201710685815A CN107331521A CN 107331521 A CN107331521 A CN 107331521A CN 201710685815 A CN201710685815 A CN 201710685815A CN 107331521 A CN107331521 A CN 107331521A
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- Prior art keywords
- core bag
- foil
- anode foil
- cathode
- cathode foil
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 83
- 239000003990 capacitor Substances 0.000 title claims abstract description 48
- 229920000642 polymer Polymers 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 34
- 239000007787 solid Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 239000011888 foil Substances 0.000 claims abstract description 184
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 40
- 238000005470 impregnation Methods 0.000 claims abstract description 34
- 239000000126 substance Substances 0.000 claims abstract description 29
- 238000006243 chemical reaction Methods 0.000 claims abstract description 28
- 230000032683 aging Effects 0.000 claims abstract description 18
- 238000005538 encapsulation Methods 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 8
- 239000003292 glue Substances 0.000 claims abstract description 4
- 239000002245 particle Substances 0.000 claims description 43
- 239000007788 liquid Substances 0.000 claims description 39
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 33
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 23
- 239000007800 oxidant agent Substances 0.000 claims description 21
- 230000001590 oxidative effect Effects 0.000 claims description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000000178 monomer Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 239000004745 nonwoven fabric Substances 0.000 claims description 14
- 229910000989 Alclad Inorganic materials 0.000 claims description 11
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical group C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 11
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 229910052709 silver Inorganic materials 0.000 claims description 10
- 239000004332 silver Substances 0.000 claims description 10
- 229920004933 Terylene® Polymers 0.000 claims description 9
- 239000000853 adhesive Substances 0.000 claims description 9
- 230000001070 adhesive effect Effects 0.000 claims description 9
- 239000002390 adhesive tape Substances 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 9
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 229930192474 thiophene Natural products 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 3
- JOXIMZWYDAKGHI-UHFFFAOYSA-N toluene-4-sulfonic acid Chemical group CC1=CC=C(S(O)(=O)=O)C=C1 JOXIMZWYDAKGHI-UHFFFAOYSA-N 0.000 claims description 3
- 229950004288 tosilate Drugs 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 229920000915 polyvinyl chloride Polymers 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 2
- 238000001035 drying Methods 0.000 description 6
- -1 thiophene Fen class Chemical class 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000002950 deficient Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 229910001220 stainless steel Inorganic materials 0.000 description 5
- 239000010935 stainless steel Substances 0.000 description 5
- 239000002253 acid Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000002360 preparation method Methods 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
- 230000008859 change Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 description 2
- 239000001741 Ammonium adipate Substances 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 235000019293 ammonium adipate Nutrition 0.000 description 2
- 238000007743 anodising Methods 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007784 solid electrolyte Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- ZYUVGYBAPZYKSA-UHFFFAOYSA-N 5-(3-hydroxybutan-2-yl)-4-methylbenzene-1,3-diol Chemical compound CC(O)C(C)C1=CC(O)=CC(O)=C1C ZYUVGYBAPZYKSA-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229920001807 Urea-formaldehyde Polymers 0.000 description 1
- WRLRISOTNFYPMU-UHFFFAOYSA-N [S].CC1=CC=CC=C1 Chemical compound [S].CC1=CC=CC=C1 WRLRISOTNFYPMU-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- RATMLZHGSYTFBL-UHFFFAOYSA-N azanium;6-hydroxy-6-oxohexanoate Chemical compound N.OC(=O)CCCCC(O)=O RATMLZHGSYTFBL-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- NHADDZMCASKINP-HTRCEHHLSA-N decarboxydihydrocitrinin Natural products C1=C(O)C(C)=C2[C@H](C)[C@@H](C)OCC2=C1O NHADDZMCASKINP-HTRCEHHLSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 150000005690 diesters Chemical class 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 238000003466 welding Methods 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
- H01G9/004—Details
- H01G9/14—Structural combinations or circuits for modifying, or compensating for, electric characteristics of 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
- H01G9/004—Details
- H01G9/07—Dielectric layers
-
- 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
- H01G9/08—Housing; Encapsulation
- H01G9/10—Sealing, e.g. of lead-in wires
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Laminated Bodies (AREA)
Abstract
The present invention relates to the manufacture method of polymer solid aluminum electrolytic capacitor, the step of its winding for including carrying out successively forms core bag, carburising step, chemical conversion step, impregnation step, heating polymerization procedure, encapsulation step and Aging Step, wherein winding core bag step is：Electrolytic paper will be intervened between cathode foil and anode foil so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, the bottom of anode foil is exposed more than electrolytic paper and cathode foil；Being melted into step is：Core bag is put into electrolytic bath, the cathode foil exposed parts and anode foil exposed parts of core bag are electrically connected with being melted into the positive pole and negative pole of power supply respectively, during chemical conversion, while the cathode foil and anode foil to core bag are powered；Encapsulation step is：Cathode foil exposed parts are connected with positive terminal, the exposed parts of anode foil are electrically connected by conducting resinl and aluminum hull, aluminum hull and the sealing of glue lid rolling are then completed into encapsulation, series equivalent resistance is reduced, and ESR value fluctuating ranges are small.
Description
Technical field
The present invention relates to technical field of electrolytic, more particularly to a kind of manufacture of polymer solid aluminum electrolytic capacitor
Method.
Background technology
Solid electrolytic capacitor compares more common wet electrolytic capacitors, and its electrical property is very prominent, with equivalent series
Resistance (ESR) is low, resistance to ripple current height, service life length, steady performance.Changed with the continuous upgrading of electronic product
Generation, the continuous improvement of its function and performance, to the high frequency characteristics requirement of capacitor also more and more higher, people make different installations
Mode realizes different installation requirements, while also reduce the equivalent series resistance of solid electrolytic capacitor by all means
(ESR), to meet the high frequency characteristics of capacitor.
At present, the manufacture method of polymer solid aluminum electrolytic capacitor includes the step that the winding that carries out successively forms core bag
Suddenly, carburising step, to core bag be melted into the chemical conversion step of repair process, is impregnated with monomer step, is impregnated with oxidant step, heating
Polymerization procedure, encapsulation step and Aging Step, wherein chemical conversion step is also very important, its result being melted into is directly affected
The ESR values of capacitor.
However, in the prior art, its chemical conversion step used includes：A transmission frame is taken, transmission frame has open upper end
Accommodation space, transmission frame bottom be evenly equipped with multiple through holes, by multiple core bags be arranged closely in transmission frame accommodation space in
Form multiple core bags row, and make each core bag arrange in the positive pole lead-out tablet wrapped of each core be arranged in a row, then with clamping plate by institute
The free end for stating row's positive pole lead-out tablet is clamped, and finally transmission frame is put into the electrolytic bath equipped with forming liquid, made in electrolytic bath
The liquid level of forming liquid flushed with the upper edge of core bag, clamping plate connection positive source, power-up be melted into, the clamping plate include by phenol
A pair of ing jaw bodies and be arranged at the aluminium on the inner surface of a pair of ing jaw bodies for clamping positive pole lead-out tablet that urea formaldehyde is constituted
Band.
According to above-mentioned chemical synthesizing method, found in practical operation：It is this by forming liquid by transmitting frame or electrolytic bath phase
The problem of formation regime of negative pole has individual fatal is connected to become, is exactly that cathode foil is connected after voltage, although be between anode foil
Electrolytic paper is separated with, but because forming liquid has certain resistance value, there is certain pressure drop in a liquid, such anode foil will necessarily be held
The certain magnitude of voltage of load, it is pressure-resistant very low due to negative pole, bear after voltage, the functional layer on surface has a certain degree of damage,
After particularly positive and negative paper tinsel is jagged, the voltage being applied in anode foil is higher, and anode foil destruction is more serious.The result meeting of destruction
The rise of ESR series equivalent resistances is shown as, and the big minor swing of ESR values is larger, and product homogeneity is bad, and fraction defective is higher.
The content of the invention
The technical problems to be solved by the invention are to overcome the deficiencies in the prior art there is provided a kind of improved polymer solids
The manufacture method of aluminium electrolutic capacitor, it can not only reduce the series equivalent resistance of capacitor, and with batch capacitor
The size fluctuating range of ESR values is small, and the homogeneity of product is good, and fraction defective has also declined.
To solve above technical problem, a kind of technical scheme that the present invention takes is：
A kind of manufacture method of polymer solid aluminum electrolytic capacitor, the capacitor includes aluminum hull, is arranged in aluminum hull
Core bag, it is arranged on Jiao Gai, positive terminal, the negative terminal being tightly connected at the top of core bag and with aluminum hull, wherein cathode foil, anode foil
There are the exposed parts for exposing core bag respectively, polymer solid aluminum electrolytic capacitor also includes welding with the exposed parts of cathode foil
Cathode conductive film, positive terminal is welded on cathode conductive film, and negative terminal is connected with the bottom of aluminum hull, anode foil it is outer
Dew part is connected by conducting resinl with aluminum hull, and the manufacture method of the capacitor forms the step of core bag including the winding that carries out successively
Suddenly, carburising step, chemical conversion step, impregnation step, heating polymerization procedure, encapsulation step and Aging Step, wherein winding core bag
Step is：Electrolytic paper will be intervened between cathode foil and anode foil, be wound into core bag, wherein, the width phase of cathode foil and anode foil
Deng so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, and the bottom of anode foil exceedes electricity
Solve paper and cathode foil and exposed, the core bag adhesive tape ring of winding is around clinging fixation；
Described electrolytic paper is made up of three layers of non-woven fabrics, and wherein the upper and lower are respectively the terylene spinning of 10~30 μm of thickness
Bonded non-woven fabrics；Intermediate layer is the PET non-woven fabrics of 10~40 μm of thickness, constitute the terylene spun-bonded non-woven fabrics polyester fiber it is flat
A diameter of 10~20 μm, the average diameter for constituting the PET of the PET non-woven fabrics is 0.5~2.0 μm；
Being melted into step is：Core bag is put into the electrolytic bath with forming liquid, by the exposed of the cathode foil upper end of core bag
Part is electrically connected with being melted into the positive pole of power supply, and the exposed parts of the anode foil bottom of core bag are electrically connected with being melted into the negative pole of power supply
Connect, during chemical conversion, while the cathode foil and anode foil to core bag are powered；
Encapsulation step is：First pass through cathode conductive film cathode foil exposed parts are connected with positive terminal, while the bottom of at
Portion, which is connected with the inner bottom surface of the aluminum hull of negative terminal, coats conducting resinl, be then positioned at core bag in aluminum hull by Jiao Gai,
And the exposed parts of the anode foil of core bag are located at the top of conducting resinl, then heating makes conductive adhesive curing so that negative terminal energy
Enough exposed parts with anode foil are electrically connected by conducting resinl and aluminum hull, the shape for then sealing aluminum hull and Jiao Gai by rolling
Formula is sealed, that is, completes encapsulation.
Preferably, in chemical conversion step, core bag is erect and is placed in electrolytic bath, the exposed parts court of cathode foil upper end
The upper, exposed parts of anode foil bottom are set down, and the liquid level of the forming liquid in electrolytic bath is flushed with the upper edge of core bag.
According to one of present invention specific implementation and preferred aspect, electrolytic bath is can, and multiple core bags are respectively from negative pole
The exposed parts of paper tinsel are erected in can, and when chemical conversion, can is electrically connected with the negative pole with being melted into power supply.
Preferably, multiple core bags are divided into multiple core bag rows, and the core bag arranged per two adjacent core bags is staggered and opened up
Put.So that multiple core bag rows can be placed in same can.
Further, the exposed parts of cathode foil upper end are connected by cathode conductive film with positive terminal, Mei Gexin
Bag row is mutually concatenated superposed positive terminal by fixture or iron bar, the fixture for then arranging multiple core bags or iron bar and change
Into the positive pole of power supply be connected, wherein using fixture or iron bar as positive pole, can is subject to formation voltage as negative pole,
It can complete to be melted into step.
According to the present invention another specific implementation and preferred aspect, the manufacture method be additionally included in chemical conversion step after,
It is impregnated with before step, carries out the step cleaned and dried in deionized water, the wherein resistivity of deionized water successively to core bag not
Less than 5M Ω, water temperature is 20 DEG C~100 DEG C；Dry and carried out 1~3 hour at 110~150 DEG C of temperature.
Another specific implementation and preferred aspect according to the present invention, impregnation step include impregnation monomer step and impregnation oxygen
Agent step, wherein impregnation monomer step is：Core bag is integrally moved to and is impregnated with the groove for containing monomer solution, monomer is thiophene
Fen class material；Being impregnated with oxidant step is：Core bag is placed in the impregnating groove for containing oxidant, first carries out the normal pressure of 2~10 minutes
Impregnation, then the vacuum impregnation of 1~4 minute is carried out, then the pressurization impregnation of 2~10 minutes is carried out, wherein, oxidant is to toluene sulphur
Acid or tosilate, normal pressure impregnation refer to that vacuum impregnation refers to by the interior core bag direct impregnation for normal pressure in oxidant
Vacuum will be first evacuated to inside core bag for 70~100KPa, is then impregnated in again in oxidant；Pressurization impregnation is directed to core
Internal compressed air to the pressure that is passed through of bag is 2~4atm, is then impregnated in again in oxidant.
Preferably, realize cathode foil leakage part electrically connect with positive terminal and conduction adhesive curing before, respectively will just
The polymer dielectric of pole paper tinsel leakage part and anode foil leakage part surface is removed.
Preferably, the conducting particles of conducting resinl is constituted in silver particles, nickel particles, silver-colored alclad particle, silver-colored copper-clad particle
One or more combinations.
Preferably, cathode conductive film is fine aluminium material, and purity is more than or equal to 99.3%.
Preferably, Jiao Gai selects exotic material, for example, can be vulcanized butyl rubber or PET
(PET)。
In addition, being covered with the insulating barrier or be coated with poly terephthalic acid that thickness is 5 μm~50 μm on the outer wall of aluminum hull
The sebific duct of second diester (PET) material or polyethylene (PE) material, the wherein material of insulating barrier are terylene, epoxy resin or polyethylene
Resin.
Preferably, heating polymerization procedure polymerize for four-part form, and wherein first paragraph polymerization temperature is 35 DEG C~45 DEG C, during polymerization
Between be 4~6 hours；Second segment polymerization temperature is 55 DEG C~70 DEG C, and polymerization time is 1~3 hour；Three stage polymerization temperature is 80
DEG C~90 DEG C, polymerization time is 2~5 hours；4th section of polymerization temperature is 130 DEG C~150 DEG C, and polymerization time is 1~3 hour.
The step of also carrying out testing, sorting while aging, wherein high temperature ageing condition is as follows：Environment temperature control exists
Between 85 DEG C~200 DEG C, it is respectively 20% to apply voltage, 80%, 100% and 120% operating voltage, ageing time for 10~
240 minutes.
Specifically, forming liquid is phosphate forming liquid, boric acid system forming liquid or ammonium adipate system forming liquid.
The specific process of manufacture method involved by the application is as follows：
(1), electrolytic paper will be intervened between cathode foil and anode foil, is wound into core bag, wherein, the width of cathode foil and anode foil
Degree is equal so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, and the bottom of anode foil surpasses
Cross electrolytic paper and cathode foil and exposed, the core bag adhesive tape ring of winding is around clinging fixation.
(2), the core bag of coiling and molding is put in the container that stainless steel is made, the high temperature that temperature is 270 ± 5 DEG C is put in and dries
Carbonization treatment is carried out in case.
(3), the core bag described in step (2) is erect and is placed in can (electrolytic bath), cathode foil upper end it is exposed
Part upward, the exposed parts of anode foil bottom be erected at down in can, then by cathode conductive film by cathode foil
The exposed parts of upper end are electrically connected with positive terminal, while the positive terminal and chemical conversion power supply of being wrapped multiple cores by fixture
Positive pole electrical connection, by can with chemical conversion power supply negative pole electrically connect, forming liquid is then added into can so that be melted into
The liquid level of forming liquid in groove is flushed with the upper edge of core bag, meanwhile, using fixture as positive pole, can is used as negative pole, Ran Houtong
Electrification into.
(4), the core bag after chemical conversion is carried out successively to clean and dry in deionized water, wherein the resistivity of deionized water is not
Less than 5M Ω, water temperature is 20 DEG C~100 DEG C；Dry and carried out 1~3 hour at 110~150 DEG C of temperature.
(5), above-mentioned dried core bag is placed in the groove for containing monomer solution and is impregnated with, then under the conditions of 50 DEG C
Drying, the wherein time 2 h of drying, monomer are thiophene-based material, then place into enter in the groove for containing oxidant by core bag
Row impregnation, specifically first carries out the normal pressure impregnation of 2~8 minutes, then carries out the vacuum impregnation of 1~3 minute, finally carries out 2~3 points
The pressurization impregnation of clock, wherein oxidant are p-methyl benzenesulfonic acid.
(6) heating polymerization, is carried out, and using four-part form polymerization, wherein first paragraph polymerization temperature is 42 ± 2 DEG C, during polymerization
Between be 4 hours；Second segment polymerization temperature is 65 ± 2 DEG C, and polymerization time is 1 hour；Three stage polymerization temperature is 87 ± 2 DEG C, is gathered
The conjunction time is 2 hours；4th section of polymerization temperature is 145 ± 2 DEG C, and polymerization time is 1 hour.
(7), the polymer dielectric of cathode foil leakage part and anode foil leakage part surface is removed respectively, then led to
Cross cathode conductive film cathode foil exposed parts are connected with positive terminal, while the aluminum hull of negative terminal is connected with bottom
Conducting resinl is coated in inner bottom surface, then by core bag be positioned at by Jiao Gai in aluminum hull and core bag anode foil exposed parts
Positioned at the top of conducting resinl, then heating makes conductive adhesive curing so that negative terminal can pass through with the exposed parts of anode foil
Conducting resinl and aluminum hull are electrically connected, and then seal aluminum hull and the Jiao Gai form sealed by rolling, that is, complete encapsulation, wherein structure
Into conducting resinl conducting particles be silver particles, one or more combinations in nickel particles, silver-colored alclad particle, silver-colored copper-clad particle；
Cathode conductive film is fine aluminium material, and purity is more than or equal to 99.3%；Jiao Gai selects exotic material, for example, can be vulcanization butyl
Rubber or PET (PET).
(8) after the completion of, encapsulating, in environment temperature control between 85 DEG C~200 DEG C, it is respectively 20% to apply voltage,
80%th, 100% and 120% operating voltage, ageing time is 10~240 minutes, carries out aging, produces electrolytic capacitor production
Product.
(9) tested after, aging completion 2 is small.
Due to the use of above-mentioned technical proposal, the present invention has advantages below compared with prior art：
The present invention can not only reduce the series equivalent resistance of capacitor, and the size of the ESR values with batch capacitor
Fluctuating range is small, and the homogeneity of product is good, and fraction defective has also declined.
Brief description of the drawings
Fig. 1 is the structural representation of the polymer solid aluminum electrolytic capacitor according to the present invention；
Fig. 2 is the structural representation of the core bag of the polymer solid aluminum electrolytic capacitor according to the present invention；
Fig. 3 is the cathode conductive film and the structural representation of positive terminal for showing the capacitor of the present invention；
Fig. 4 is the structural representation of electrolytic paper of the present invention；
Wherein：1st, positive terminal；2nd, negative terminal；3rd, Jiao Gai；4th, aluminum hull；5th, conducting resinl；6th, insulating barrier；7th, core bag；71、
It is anodizing to aluminium foil；72nd, anode foil；73rd, electrolytic paper；C1, upper strata；C2, intermediate layer；C3, lower floor；8th, cathode conductive film.
Embodiment
It is contemplated that being improved by the manufacture method to capacitor, to realize capacitor product miniaturization and drop
The series equivalent (ESR) of low product, improves the anti-ripple ability of product.
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
Embodiment 1
Refering to Fig. 1 to Fig. 4, the present embodiment provides a kind of polymer solid aluminum electrolytic capacitor, and specification is 25V820 μ F, raw
It is 300 to produce quantity, and it includes positive terminal 1, negative terminal 2, glue lid 3, aluminum hull 4, cathode conductive film 8, conducting resinl 5 and core
Bag 7.Core bag 7 is constituted by being anodizing to aluminium foil 71, anode foil 72, electrolytic paper 73 and polymer dielectric 74.Weld the upper end of core bag 7
Cathode conductive film 8 is connect, positive terminal 1, the bottom connection conducting resinl 5 of core bag 7 are welded on cathode conductive film 8.Glue lid 3 and aluminum hull
4 are separately positioned on the top of core bag 7 and surrounding, and aluminum hull 4 is connected with conducting resinl 5, the bottom of aluminum hull 4 connection negative terminal 2, aluminum hull 4
It is overcoating to be stamped insulating barrier 6.
In this example, electrolytic paper 73, its by three layers it is non-woven fabric compounded form, its at the middle and upper levels c1 and lower floor c3 be respectively thickness about
20 μm of terylene spun-bonded non-woven fabrics；Intermediate layer c2 is the PET non-woven fabrics of 25 μm of thickness, and the terylene for constituting terylene spun-bonded non-woven fabrics is fine
The average diameter of dimension is 10~20 μm, and the average diameter for constituting the PET of PET non-woven fabrics is 0.5~2.0 μm.
The manufacture method of polymer solid aluminum electrolytic capacitor includes the following steps carried out successively：
(1) Waste Acid From Hua Cheng Foil of the formation voltage for 51V, is chosen as cathode foil, cuts width for 20mm；Electrolytic paper cuts width
Spend for 20mm；Appropriate anode foil is chosen, width is cut for 20mm.
(2), electrolytic paper will be intervened between cathode foil and anode foil, is wound into core bag, wherein, the width of cathode foil and anode foil
Degree is equal so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, and the bottom of anode foil surpasses
Cross electrolytic paper and cathode foil and exposed, electrolytic paper keeps apart two paper tinsels between cathode foil and anode foil, does not form short circuit,
So that the upper end of the cathode foil in gained core bag is exposed more than electrolytic paper 1mm and anode foil 2mm, the bottom of anode foil surpasses
Electrolytic paper 1mm and cathode foil 2mm are crossed and exposed, then using adhesive tape ring around clinging fixation.
(3), core bag is put in the container that stainless steel is made, is put in the high temperature oven that temperature is 270 ± 2 DEG C and carries out carbon
Change is handled.
(4), the core bag described in step (3) is erect and is placed in can (electrolytic bath), cathode foil upper end it is exposed
Part upward, the exposed parts of anode foil bottom be erected at down in can, then by cathode conductive film by cathode foil
The exposed parts of upper end are electrically connected with positive terminal, and multiple core bags are divided into multiple core bag rows, are arranged per two adjacent core bags
On core bag be staggered setting, each core bag row is mutually concatenated superposed positive terminal by fixture or iron bar, then will
The fixture or iron bar of multiple core bag rows is connected with the positive pole of the power supply of chemical conversion, and can is electrically connected with being melted into the negative pole of power supply
Connect, forming liquid is then added into can so that the liquid level of the forming liquid in electrolytic bath is in the anode foil upper end of core bag
Below edge, it is subsequently placed into forming liquid and impregnates 10 minutes, then using fixture as positive pole, can is energization as negative pole
Into in this example, under conditions of formation voltage is 50V, chemical conversion 25 minutes, forming liquid is ammonium adipate system forming liquid.
(5), the core bag after chemical conversion is carried out successively to clean and dry in deionized water, wherein the resistivity of deionized water is not
Less than 5M Ω, water temperature is 70 DEG C；Dry and carried out 1.5 hours at 130 DEG C of temperature.
(6), above-mentioned dried core bag is placed in the groove for containing monomer solution and is impregnated with, then under the conditions of 50 DEG C
Drying, wherein monomer are thiophene-based material, and core bag then is placed into enter in the groove for containing oxidant by the time 2 h of drying
Row impregnation, specifically first carries out the normal pressure impregnation of 2~5 minutes, then carries out the vacuum impregnation of 2~3 minutes, finally carries out 2~5 points
The pressurization impregnation of clock, wherein oxidant are tosilate.
(7) heating polymerization, is carried out, and using four-part form polymerization, wherein first paragraph polymerization temperature is 42 ± 2 DEG C, during polymerization
Between be 4 hours；Second segment polymerization temperature is 65 ± 2 DEG C, and polymerization time is 1 hour；Three stage polymerization temperature is 87 ± 2 DEG C, is gathered
The conjunction time is 2 hours；4th section of polymerization temperature is 145 ± 2 DEG C, and polymerization time is 1 hour.
(8), the polymer dielectric of cathode foil leakage part and anode foil leakage part surface is removed respectively, then led to
Cross cathode conductive film cathode foil exposed parts are connected with positive terminal, while the aluminum hull of negative terminal is connected with bottom
Conducting resinl is coated in inner bottom surface, then by core bag be positioned at by Jiao Gai in aluminum hull and core bag anode foil exposed parts
Positioned at the top of conducting resinl, then heating makes conductive adhesive curing so that negative terminal can pass through with the exposed parts of anode foil
Conducting resinl and aluminum hull are electrically connected, and then seal aluminum hull and the Jiao Gai form sealed by rolling, that is, complete encapsulation, wherein structure
Into conducting resinl conducting particles be silver particles, one or more combinations in nickel particles, silver-colored alclad particle, silver-colored copper-clad particle,
The combination of silver-colored alclad particle and silver-colored copper-clad particle is employed in this example；Cathode conductive film is fine aluminium material, and purity is more than or equal to
99.3%；Jiao Gai selects exotic material, for example, PET (PET).
(9), 5V, 15V, 25V and 30V voltage, time are applied respectively in 125 DEG C of baking oven in environment temperature control
It is set to 30 minutes, 30 minutes, 30 minutes and 60 minutes, carries out aging, produce the electrolytic capacitor product.
(10) tested after, aging completion 2 is small.
Produce after finished product number is 300 sortings, wherein big 2 are lost, big 3 of leakage current, totally 5 bad devices, examination
It is 98.33% to test yields, while ESR values are relatively uniform, and the amplitude of ESR values fluctuation is smaller, therefore, the homogeneity of product
Good, yields is all to be increased.
Table 1 show capacitance of this example 25V820 μ F products (optional 10) under 120Hz frequencies, loss,
The measured value of ESR under 100KHz frequencies, applies the leakage current of 25V voltage measurements.
Table 1
| Sequence number | Capacity (uf) | It is lost (100%) | ESR(mΩ) | Leakage current (uA/1 minutes) |
| Specification | 656-984 | 6% | 8 | 2050 |
| 1 | 825.2 | 2.12 | 4.1 | 22 |
| 2 | 820.3 | 2.14 | 4.0 | 24 |
| 3 | 827.1 | 2.22 | 4.0 | 25 |
| 4 | 820.5 | 2.13 | 3.8 | 32 |
| 5 | 825.9 | 2.31 | 4.3 | 22 |
| 6 | 827.3 | 2.15 | 4.2 | 24 |
| 7 | 821.9 | 2.26 | 4.1 | 25 |
| 8 | 824.2 | 2.12 | 4.1 | 24 |
| 9 | 821.3 | 2.10 | 4.1 | 28 |
| 10 | 826.3 | 2.15 | 4.3 | 34 |
| Maximum | 827.3 | 2.31 | 4.3 | 34 |
| Minimum value | 820.3 | 2.10 | 3.8 | 22 |
| Average value | 824.0 | 2.17 | 4.1 | 26 |
Comparative example 1
The present embodiment provides a kind of polymer solid aluminum electrolytic capacitor, and specification is 25V820 μ F, and production quantity is 300
, and the structure of capacitor is identical with embodiment 1, difference is preparation method.
The preparation method process is as follows：
(1) Waste Acid From Hua Cheng Foil of the formation voltage for 51V, is chosen as cathode foil, cuts width for 20mm；Electrolytic paper cuts width
Spend for 20mm；Appropriate anode foil is chosen, width is cut for 20mm.
(2), electrolytic paper will be intervened between cathode foil and anode foil, is wound into core bag, wherein, the width of cathode foil and anode foil
Degree is equal so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, and the bottom of anode foil surpasses
Cross electrolytic paper and cathode foil and exposed, electrolytic paper keeps apart two paper tinsels between cathode foil and anode foil, does not form short circuit,
Cathode foil is equal with the width of anode foil so that the upper end of the cathode foil in gained core bag exceedes electrolytic paper 1mm and anode foil
2mm and it is exposed, the bottom of anode foil exceedes electrolytic paper 1mm and cathode foil 2mm and exposed, and the core bag adhesive tape ring of winding is around viscous
Fasten.Then using adhesive tape ring around clinging fixation.
(3), the exposed parts of the cathode foil of multiple core bags are connected with positive terminal by cathode conductive film, then pressed from both sides
Have and multiple positive terminals are connected with the positive pole of chemical conversion power supply, be subsequently placed into forming liquid and impregnate 10 minutes, then with fixture
As positive pole, forming liquid is powered as negative pole, is melted into 25 minutes, wherein formation voltage is 50V, and forming liquid is adipic acid
Ammonium system forming liquid.
(4), core bag is put in the container that stainless steel is made, is put in the high temperature oven that temperature is 260 DEG C and is carbonized
Processing.
(5), polymerized monomer and oxidant are impregnated in core bag respectively, polymerisation is carried out, so that in cathode foil with bearing
Copolymer solid electrolyte is generated between the paper tinsel of pole and in electrolytic paper.
(6), the polymer dielectric of cathode foil leakage part and anode foil leakage part surface is removed respectively, then led to
Cross cathode conductive film cathode foil exposed parts are connected with positive terminal, while the aluminum hull of negative terminal is connected with bottom
Conducting resinl is coated in inner bottom surface, then by core bag be positioned at by Jiao Gai in aluminum hull and core bag anode foil exposed parts
Positioned at the top of conducting resinl, then heating makes conductive adhesive curing so that negative terminal can pass through with the exposed parts of anode foil
Conducting resinl and aluminum hull are electrically connected, and then seal aluminum hull and the Jiao Gai form sealed by rolling, that is, complete encapsulation, wherein structure
Into conducting resinl conducting particles be silver particles, one or more combinations in nickel particles, silver-colored alclad particle, silver-colored copper-clad particle,
The combination of silver-colored alclad particle and silver-bearing copper particle is employed in this example；Cathode conductive film is fine aluminium material, and purity is more than or equal to
99.3%；Jiao Gai selects exotic material, for example, PET (PET).
(7) product, is put into temperature control in 125 DEG C of baking oven, applies 5V respectively, 15V, 25V and 30V voltage,
Time is set to 30 minutes, 30 minutes, 30 minutes and 60 minutes, carries out aging, is tested after aging completion 2 is small.
Produce after finished product number is 300 sortings, wherein big 3 are lost, big 2 of leakage current, ESR values are more than standard gauge
Lattice have 3, totally 8 defective products, and experiment yields is 97.33%, and the fluctuations of ESR value sizes is also apparent from.
Table 2 show capacitance of the 25V820 μ F products in this example (optional 10) under 120Hz frequencies, loss,
The measured value of ESR under 100KHz frequencies, applies the leakage current of 25V voltage measurements.
Table 2
Embodiment 2
The present embodiment provides the polymer solid aluminum electrolytic capacitor that a kind of specification is 10V2200 μ F, and its basic structure is same
Embodiment 1.Unlike, the manufacture method of the capacitor is as follows：
(1) Waste Acid From Hua Cheng Foil of the formation voltage for 20.5V, is chosen as cathode foil, cuts width for 15mm；Electrolytic paper is cut
Width is 15mm；Appropriate anode foil is chosen, width is cut for 15mm.
(2), electrolytic paper will be intervened between cathode foil and anode foil, is wound into core bag, wherein, the width of cathode foil and anode foil
Degree is equal so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, and the bottom of anode foil surpasses
Cross electrolytic paper and cathode foil and exposed, electrolytic paper keeps apart two paper tinsels between cathode foil and anode foil, does not form short circuit,
So that the upper end of the cathode foil in gained core bag is exposed more than electrolytic paper 1mm and anode foil 2mm, the bottom of anode foil surpasses
Electrolytic paper 1mm and cathode foil 2mm are crossed and exposed, then using adhesive tape ring around clinging fixation.
(3), core bag is put in the container that stainless steel is made, is put in the high temperature oven that temperature is 269 DEG C and is carbonized
Processing.
(4), the core bag described in step (3) is erect and is placed in can (electrolytic bath), cathode foil upper end it is exposed
Part upward, the exposed parts of anode foil bottom be erected at down in can, then by cathode conductive film by cathode foil
The exposed parts of upper end are electrically connected with positive terminal, and multiple core bags are divided into multiple core bag rows, are arranged per two adjacent core bags
On core bag be staggered setting, each core bag row is mutually concatenated superposed positive terminal by fixture or iron bar, then will
The fixture or iron bar of multiple core bag rows is connected with the positive pole of the power supply of chemical conversion, and can is electrically connected with being melted into the negative pole of power supply
Connect, forming liquid is then added into can so that the liquid level of the forming liquid in electrolytic bath is in the anode foil upper end of core bag
Below edge, it is subsequently placed into forming liquid and impregnates 10 minutes, then using fixture as positive pole, can is energization as negative pole
Into in this example, under conditions of formation voltage is 20.5V, chemical conversion 25 minutes, forming liquid is boric acid system forming liquid.
(5), the core bag after chemical conversion is carried out successively to clean and dry in deionized water, wherein the resistivity of deionized water is not
Less than 5M Ω, water temperature is 80 DEG C；Dry and carried out 2 hours at 135 DEG C of temperature.
(6), above-mentioned dried core bag is placed in the groove for containing monomer solution and is impregnated with, then under the conditions of 50 DEG C
Drying, wherein monomer are thiophene-based material, are 3,4 two support group dioxygen thiophene, the time 2 h of drying, then by core in this example
Bag is placed into be impregnated with the groove for containing oxidant, and the normal pressure specifically first carried out 6 minutes is impregnated with, then carries out 2 minutes true
Sky impregnation, the pressurization finally carried out 4 minutes is impregnated with, and wherein oxidant is p-methyl benzenesulfonic acid.
(7) heating polymerization, is carried out, and using four-part form polymerization, wherein first paragraph polymerization temperature is 42 ± 2 DEG C, during polymerization
Between be 5 hours；Second segment polymerization temperature is 63 ± 2 DEG C, and polymerization time is 2 hours；Three stage polymerization temperature is 84 ± 2 DEG C, is gathered
The conjunction time is 3 hours；4th section of polymerization temperature is 145 ± 2 DEG C, and polymerization time is 2 hours.
(8), the polymer dielectric of cathode foil leakage part and anode foil leakage part surface is removed respectively, then led to
Cross cathode conductive film cathode foil exposed parts are connected with positive terminal, while the aluminum hull of negative terminal is connected with bottom
Conducting resinl is coated in inner bottom surface, then by core bag be positioned at by Jiao Gai in aluminum hull and core bag anode foil exposed parts
Positioned at the top of conducting resinl, then heating makes conductive adhesive curing so that negative terminal can pass through with the exposed parts of anode foil
Conducting resinl and aluminum hull are electrically connected, and then seal aluminum hull and the Jiao Gai form sealed by rolling, that is, complete encapsulation, wherein structure
Into conducting resinl conducting particles be silver particles, one or more combinations in nickel particles, silver-colored alclad particle, silver-colored copper-clad particle,
The combination of silver-colored alclad particle and silver particles is employed in this example；Cathode conductive film is fine aluminium material, and purity is more than or equal to 99.3%；
Jiao Gai selects exotic material, for example, PET (PET).
(9), in environment temperature control in 125 DEG C of baking oven, 2V, 8V, 10V and 12V voltage, time point are applied respectively
It is not set to 30 minutes, 30 minutes, 30 minutes and 60 minutes, carries out aging, produce polymer solid aluminum electrolytic capacitor product.
(10) tested after, aging completion 2 is small.
After wherein production finished product number is 300PCS sortings, wherein big 2 are lost, big 3 of leakage current, totally 5 bad, examinations
It is 98.33% to test yields, while the big minor swing of ESR values is smaller, it is relatively uniform.
Table 3 is capacitance of this example 10V2200 μ F products (optional 10) under 120Hz frequencies, loss, in 100KHz
The measured value of ESR under frequency, applies the leakage current of 10V voltage measurements.
Table 3
| Sequence number | Capacity (uf) | It is lost (100%) | ESR(mΩ) | Leakage current (uA/1 minutes) |
| Specification | 1760-2640 | 6% | 8 | 1100 |
| 1 | 2206.6 | 2.28 | 4.1 | 9.6 |
| 2 | 2204.6 | 2.36 | 4.2 | 9.8 |
| 3 | 2205.9 | 2.32 | 4.3 | 9.9 |
| 4 | 2207.0 | 2.31 | 4.2 | 9.6 |
| 5 | 2205.8 | 2.26 | 4.1 | 9.4 |
| 6 | 2205.6 | 2.42 | 4.2 | 9.8 |
| 7 | 2206.4 | 2.29 | 4.3 | 10.1 |
| 8 | 2260.0 | 2.34 | 4.2 | 9.6 |
| 9 | 2205.2 | 2.24 | 4.2 | 9.8 |
| 10 | 2204.9 | 2.38 | 4.2 | 9.4 |
| Maximum | 2207.0 | 2.42 | 4.3 | 10.1 |
| Minimum value | 2204.6 | 2.24 | 4.1 | 9.4 |
| Average value | 2205.8 | 2.32 | 4.2 | 9.7 |
Comparative example 2
The present embodiment provides a kind of polymer solid aluminum electrolytic capacitor, and specification is 10V2200 μ F, and production quantity is 300
, and the structure of capacitor is identical with embodiment 1, difference is preparation method.
The preparation method process is as follows：
(2), electrolytic paper will be intervened between cathode foil and anode foil, is wound into core bag, wherein, the width of cathode foil and anode foil
Degree is equal so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, and the bottom of anode foil surpasses
Cross electrolytic paper and cathode foil and exposed, electrolytic paper keeps apart two paper tinsels between cathode foil and anode foil, does not form short circuit,
Cathode foil is equal with the width of anode foil so that the upper end of the cathode foil in gained core bag exceedes electrolytic paper 1mm and anode foil
2mm and it is exposed, the bottom of anode foil exceedes electrolytic paper 1mm and cathode foil 2mm and exposed, and the core bag adhesive tape ring of winding is around viscous
Fasten.Then using adhesive tape ring around clinging fixation.
(3), the exposed parts of the cathode foil of multiple core bags are connected with positive terminal by cathode conductive film, then pressed from both sides
Have and multiple positive terminals are connected with the positive pole of chemical conversion power supply, be subsequently placed into forming liquid and impregnate 10 minutes, then with fixture
As positive pole, forming liquid is powered as negative pole, is melted into 25 minutes, wherein formation voltage is 10V, and forming liquid is boric acid system
Forming liquid.
(4), core bag is put in the container that stainless steel is made, is put in the high temperature oven that temperature is 260 DEG C and is carbonized
Processing.
(5), polymerized monomer and oxidant are impregnated in core bag respectively, polymerisation is carried out, so that in cathode foil with bearing
Copolymer solid electrolyte is generated between the paper tinsel of pole and in electrolytic paper.
(6), the polymer dielectric of cathode foil leakage part and anode foil leakage part surface is removed respectively, then led to
Cross cathode conductive film cathode foil exposed parts are connected with positive terminal, while the aluminum hull of negative terminal is connected with bottom
Conducting resinl is coated in inner bottom surface, then by core bag be positioned at by Jiao Gai in aluminum hull and core bag anode foil exposed parts
Positioned at the top of conducting resinl, then heating makes conductive adhesive curing so that negative terminal can pass through with the exposed parts of anode foil
Conducting resinl and aluminum hull are electrically connected, and then seal aluminum hull and the Jiao Gai form sealed by rolling, that is, complete encapsulation, wherein structure
Into conducting resinl conducting particles be silver particles, one or more combinations in nickel particles, silver-colored alclad particle, silver-colored copper-clad particle,
The combination of silver-colored alclad particle and silver particles is employed in this example；Cathode conductive film is fine aluminium material, and purity is more than or equal to 99.3%；
Jiao Gai selects exotic material, for example, PET (PET).
(7) product, is put into temperature control in 125 DEG C of baking oven, applies 2V respectively, 8V, 10V and 12V voltage, when
Between be set to 30 minutes, 30 minutes, 30 minutes and 60 minutes, carry out aging, aging complete 2 it is small after is tested.
Produce after finished product number is 300 sortings, wherein big 3 are lost, big 3 of leakage current, ESR values are above standard value
Have 3, totally 9 defective products, experiment yields is 97%, and the fluctuation of ESR values is also obvious.
Table 4 show capacitance of the 10V2200 μ F products in this example (optional 10) under 120Hz frequencies, loss,
The measured value of ESR under 100KHz frequencies, applies the leakage current of 10V voltage measurements.
Table 4
| Sequence number | Capacity (uf) | It is lost (100%) | ESR(mΩ) | Leakage current (uA/1 minutes) |
| Specification | 176~264 | 6% | 8 | 2050 |
| 1 | 2205.6 | 2.25 | 4.1 | 22 |
| 2 | 2205.5 | 2.56 | 4.5 | 23 |
| 3 | 2204.2 | 2.42 | 4.7 | 32 |
| 4 | 2205.2 | 2.34 | 6.2 | 41 |
| 5 | 2206.2 | 2.44 | 4.5 | 25 |
| 6 | 2205.5 | 2.54 | 4.7 | 26 |
| 7 | 2206.9 | 2.32 | 4.3 | 33 |
| 8 | 2205.9 | 2.36 | 5.9 | 25 |
| 9 | 2204.4 | 2.45 | 4.6 | 37 |
| 10 | 2204.6 | 2.52 | 4.5 | 46 |
| Maximum | 2206.9 | 2.56 | 6.2 | 46 |
| Minimum value | 2204.2 | 2.25 | 4.1 | 22 |
| Average value | 2205.4 | 2.42 | 4.8 | 31 |
Finally it should be noted that：The preferred embodiments of the present invention are these are only, are not intended to limit the invention, although
The present invention is described in detail with reference to embodiment, for those skilled in the art, it still can be to foregoing
Technical scheme described in each embodiment is modified, or carries out equivalent substitution to which part technical characteristic, as long as at this
Within the spirit and principle of invention, any modification, equivalent substitution and improvements made etc. should be included in the protection model of the present invention
Within enclosing.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar can understand present disclosure and implement according to this, and it is not intended to limit the scope of the present invention, all according to the present invention
The equivalent change or modification that Spirit Essence is made, should all be included within the scope of the present invention.
Claims (10)
1. a kind of manufacture method of polymer solid aluminum electrolytic capacitor, the polymer solid aluminum electrolytic capacitor include aluminum hull,
The core bag that is arranged in the aluminum hull, be arranged on the Jiao Gai being tightly connected at the top of the core bag and with the aluminum hull, positive terminal,
Negative terminal, the core bag include cathode foil, anode foil, the electrolytic paper that is arranged between the cathode foil and the anode foil with
And polymer dielectric, described cathode foil, the anode foil have the exposed parts for exposing the core bag respectively, and described is poly-
Compound solid aluminum electrolytic capacitor also includes the cathode conductive film welded with the exposed parts of described cathode foil, described positive pole
Terminal is welded on the cathode conductive film, and the negative terminal is connected with the bottom of the aluminum hull, outside the anode foil
Dew part is connected by conducting resinl with the aluminum hull, and described manufacture method forms the step of core bag including the winding that carries out successively
Suddenly, carburising step, chemical conversion step, impregnation step, heating polymerization procedure, encapsulation step and Aging Step, wherein the winding
Core bag step is：Electrolytic paper will be intervened between cathode foil and anode foil, be wound into core bag, wherein, described cathode foil and negative pole
The width of paper tinsel is equal so that the upper end of the cathode foil described in gained core bag is exposed more than electrolytic paper and anode foil, described
The bottom of anode foil is exposed more than electrolytic paper and cathode foil, and the core bag adhesive tape ring of winding is around fixation is clinged, and its feature exists
In：Described electrolytic paper is made up of three layers of non-woven fabrics, and wherein the upper and lower are respectively the terylene spun-bonded nonwoven of 10 ~ 30 μm of thickness
Cloth；Intermediate layer is the PET non-woven fabrics of 10 ~ 40 μm of thickness, constitutes the average diameter of the polyester fiber of the terylene spun-bonded non-woven fabrics
For 10 ~ 20 μm, the average diameter for constituting the PET of the PET non-woven fabrics is 0.5 ~ 2.0 μm；Described chemical conversion step is：Will
The core bag is put into the electrolytic bath with forming liquid, by the exposed parts of the cathode foil upper end of core bag with being melted into power supply just
Pole is electrically connected, and the exposed parts of the anode foil bottom of core bag is electrically connected with being melted into the negative pole of power supply, during chemical conversion, while to core
The cathode foil and anode foil of bag are powered；Described encapsulation step is：First pass through cathode conductive film by cathode foil exposed parts and just
Extreme son is connected, and conducting resinl is coated while being connected with bottom in the inner bottom surface of the aluminum hull of negative terminal, then by core bag
It is positioned at by Jiao Gai in aluminum hull and the exposed parts of the anode foil of core bag is located at the top of conducting resinl, then heating makes conduction
Adhesive curing so that negative terminal can be electrically connected with the exposed parts of anode foil by conducting resinl and aluminum hull, then by aluminum hull
Sealed with the Jiao Gai forms sealed by rolling, that is, complete encapsulation.
2. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 1, it is characterised in that：The chemical conversion
In step, described core bag is erect and is placed in described electrolytic bath, the exposed parts of cathode foil upper end upward, anode foil
The exposed parts of bottom are set down, and the liquid level of the forming liquid in the electrolytic bath is flushed with the upper edge of core bag.
3. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 1 or 2, it is characterised in that：It is described
Electrolytic bath be can, exposed parts of multiple core bags respectively from the anode foil are erected in can, during chemical conversion,
Can is electrically connected with being melted into the negative pole of power supply.
4. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 3, it is characterised in that：It is multiple described
Core bag is divided into multiple core bags row, and the setting that is staggered per the core bag on adjacent two core bags row.
5. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 4, it is characterised in that：The positive pole
The exposed parts of paper tinsel upper end are connected by cathode conductive film with positive terminal, and each core bag row passes through fixture or iron bar
The superposed positive terminal is mutually concatenated, then by the fixture or iron bar and the power supply of chemical conversion of multiple core bag rows
Positive pole be connected, wherein using fixture or iron bar as positive pole, can is subject to formation voltage, you can completionization as negative pole
Into step.
6. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 1, it is characterised in that：The manufacture
Method be additionally included in chemical conversion step after, impregnation step before, core bag is carried out successively in deionized water clean and dry step
Suddenly, wherein the resistivity of deionized water is not less than 5M Ω, and water temperature is 20 DEG C~100 DEG C；Dry and enter at 110~150 DEG C of temperature
Row 1~3 hour.
7. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 1, it is characterised in that：Described contains
Soaking step includes impregnation monomer step and impregnation oxidant step, wherein impregnation monomer step is：Core bag is integrally moved into splendid attire
It is impregnated with the groove of monomer solution, the monomer is thiophene-based material；Being impregnated with oxidant step is：Core bag is placed in splendid attire oxidation
In the impregnating groove of agent, the normal pressure impregnation of 2~10 minutes is first carried out, then carries out the vacuum impregnation of 1~4 minute, then carries out 2~10 points
The pressurization impregnation of clock, wherein, the oxidant is p-methyl benzenesulfonic acid or tosilate, normal pressure impregnation refer to be by interior
The core bag direct impregnation of normal pressure in oxidant, the vacuum impregnation refer to will to be first evacuated to inside core bag vacuum for 70~
100KPa, is then impregnated in oxidant again；The pressurization impregnation be directed to be passed through inside core bag compressed air to pressure be 2~
4atm, is then impregnated in oxidant again.
8. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 1, it is characterised in that：Realizing just
Pole paper tinsel leakage part electrically connect with positive terminal and conductive adhesive curing before, respectively by cathode foil leakage part and anode foil leakage
The polymer dielectric of part surface is removed.
9. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 1, it is characterised in that：Constitute conductive
The conducting particles of glue is one or more combinations in silver particles, nickel particles, silver-colored alclad particle, silver-colored copper-clad particle.
10. the manufacture method of polymer solid aluminum electrolytic capacitor according to claim 1, it is characterised in that：The aluminium
Insulating barrier or be coated with PET that thickness is 5 μm ~ 50 μm are covered with the outer wall of shell（PET）Material
Or polyethylene（PE）The sebific duct of material, wherein the material of the insulating barrier is terylene, epoxy resin or polyvinyl resin.
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| CN109741952A (en) * | 2019-02-12 | 2019-05-10 | 赣州市柏瑞凯电子科技有限公司 | A kind of packaging technology of small size solid-state aluminum electrolytic capacitor |
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