CN107331518A - The manufacture method of solid electrolyte/aluminum electrolytic capacitor - Google Patents
The manufacture method of solid electrolyte/aluminum electrolytic capacitor Download PDFInfo
- Publication number
- CN107331518A CN107331518A CN201710685754.9A CN201710685754A CN107331518A CN 107331518 A CN107331518 A CN 107331518A CN 201710685754 A CN201710685754 A CN 201710685754A CN 107331518 A CN107331518 A CN 107331518A
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- Prior art keywords
- core bag
- foil
- anode foil
- cathode
- manufacture method
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 71
- 239000003990 capacitor Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000007784 solid electrolyte Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000011888 foil Substances 0.000 claims abstract description 140
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 40
- 238000005470 impregnation Methods 0.000 claims abstract description 36
- 239000000126 substance Substances 0.000 claims abstract description 31
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 230000032683 aging Effects 0.000 claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 14
- 238000005538 encapsulation Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 239000007800 oxidant agent Substances 0.000 claims description 20
- 230000001590 oxidative effect Effects 0.000 claims description 20
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 17
- 239000000178 monomer Substances 0.000 claims description 16
- 239000004745 nonwoven fabric Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 229920000642 polymer Polymers 0.000 claims description 11
- 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
- 238000005096 rolling process Methods 0.000 claims description 10
- 239000004411 aluminium Substances 0.000 claims description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 9
- 229920004933 Terylene® Polymers 0.000 claims description 8
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical group C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 7
- 239000002390 adhesive tape Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 229930192474 thiophene Natural products 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 3
- 229950004288 tosilate Drugs 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 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 2
- 239000003792 electrolyte Substances 0.000 claims 1
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 238000002791 soaking Methods 0.000 claims 1
- 230000002950 deficient Effects 0.000 description 8
- 238000001035 drying Methods 0.000 description 8
- 229920001577 copolymer Polymers 0.000 description 7
- 230000004888 barrier function Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 5
- 230000005540 biological transmission 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
- 238000004026 adhesive bonding Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 3
- 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
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004308 accommodation Effects 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 238000007743 anodising Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000003292 glue Substances 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
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003466 welding 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
- FLDCSPABIQBYKP-UHFFFAOYSA-N 5-chloro-1,2-dimethylbenzimidazole Chemical compound ClC1=CC=C2N(C)C(C)=NC2=C1 FLDCSPABIQBYKP-UHFFFAOYSA-N 0.000 description 1
- 239000001741 Ammonium adipate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 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
- 235000019293 ammonium adipate Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000003763 carbonization Methods 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
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 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
- 229920000728 polyester 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
- 238000005476 soldering Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- -1 thiophene Fen class Chemical class 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
- H01G9/15—Solid electrolytic capacitors
- H01G9/151—Solid electrolytic capacitors with wound foil electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The present invention relates to the manufacture method of solid electrolyte/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, be wound into core bag 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 the electrolytic bath with forming liquid, the exposed parts of the cathode foil upper end of core bag are electrically connected with being melted into the positive pole of power supply, the exposed parts of the anode foil bottom of core bag are electrically connected with being melted into the negative pole of power supply, during chemical conversion, while the cathode foil and anode foil to core bag are powered.The present invention can reduce the series equivalent resistance of capacitor, and the size fluctuating range of ESR values is small, and the homogeneity of product is good.
Description
Technical field
The present invention relates to technical field of electrolytic, more particularly to a kind of manufacture of solid electrolyte/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 solid electrolyte/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 solid electrolyte
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, fraction defective reduction.
To solve above technical problem, a kind of technical scheme that the present invention takes is：
A kind of manufacture method of solid electrolyte/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, the capacitor also includes what is welded respectively with the exposed parts of cathode foil and anode foil
Cathode conductive film and cathode conductive film, positive terminal are welded on cathode conductive film, and negative terminal is connected with the bottom of aluminum hull,
Cathode conductive film is also mutually welded with aluminum hull, the step of manufacture method of the capacitor forms core bag including the winding carried out successively,
Carburising step, chemical conversion step, impregnation step, heating polymerization procedure, encapsulation step and Aging Step, wherein winding core bag step
For：Electrolytic paper will be intervened between cathode foil and anode foil, be wound into core bag, wherein, cathode foil is equal with the width of anode foil, makes
In gained core bag the upper end of cathode foil exceed electrolytic paper and anode foil and exposed, the bottom of anode foil exceed electrolytic paper and
Cathode foil and it is 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.
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 in the anode foil upper end of core bag
Below portion edge.
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, when chemical conversion, and can is electrically connected with being melted into the negative pole of 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, encapsulation step is：First cathode conductive film is welded and fixed with aluminum hull using ultrasonic bond or Laser Welding, then
The polymer dielectric on the surface of exposed anode foil is removed, with laser by the exposed part of anode foil and cathode conductive film
Welding, then aluminum hull and the Jiao Gai form sealed by rolling sealed, that is, complete encapsulation；
It is that four-part form polymerize to heat polymerization procedure, and wherein first paragraph polymerization temperature is 35 DEG C~45 DEG C, polymerization time for 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
In addition, the step of also carrying out testing, sorting while aging, wherein, high temperature ageing condition is as follows：Environment temperature
Control is between 85 DEG C~200 DEG C, and 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, is put in the high temperature that temperature is 270 ± 5 DEG C and dries
Carbonization treatment is carried out in case.
(3) the core bag described in step (2) is erect and be placed in can (electrolytic bath), the exposed portion of cathode foil upper end
Point upward, the exposed parts of anode foil bottom are erected in can down, then by cathode conductive film by cathode foil
The exposed parts of 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 is electrically connected, and can is electrically connected with being melted into the negative pole of power supply, forming liquid is then added into can so that electrolytic bath
The liquid level of interior forming liquid is in below the anode foil upper end edge of core bag, meanwhile, it regard fixture as positive pole, can conduct
Negative pole, is then electrified to chemical conversion.
(4) the core bag after chemical conversion is carried out successively cleaning and drying 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 be impregnated with, then under the conditions of 50 DEG C
Drying, the time 2 h of drying, then by core bag place into contain oxidant groove in be impregnated with, specifically first progress 2~
The normal pressure impregnation of 8 minutes, then the vacuum impregnation of 1~3 minute is carried out, finally carry out the pressurization impregnation of 2~3 minutes.
(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), first cathode conductive film and aluminum hull are welded and fixed using ultrasonic bond or Laser Welding, then by exposed anode foil
The polymer dielectric on surface remove, the exposed part of anode foil and cathode conductive film are welded with laser, then by aluminium
Shell is sealed with the Jiao Gai forms sealed by rolling, that is, completes encapsulation.
(8), aluminum hull and the Jiao Gai form sealed by rolling are sealed, then environment temperature control is at 85 DEG C~200 DEG C
Between, it is respectively 20% to apply voltage, 80%, 100% and 120% operating voltage, and ageing time is 10~240 minutes, is entered
Row aging, produces copolymer solid electrolyte aluminium electrolytic capacitor 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, fraction defective reduction.
Brief description of the drawings
Fig. 1 is the structural representation of the solid electrolyte/aluminum electrolytic capacitor according to the present invention；
Fig. 2 is the structural representation of the core bag of the solid electrolyte/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, cathode conductive film；6th, insulating barrier；7th, core
Bag；71st, it is anodizing to aluminium foil；72nd, Cathode Foil；73rd, electrolytic paper；C1, upper strata；C2, intermediate layer；C3, lower floor；8th, positive conductive
Piece.
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 solid electrolyte/aluminum electrolytic capacitor, and specification is 25V820 μ F, raw
Produce quantity be 300, it include positive terminal 1, negative terminal 2, glue lid 3, aluminum hull 4, cathode conductive film 5, cathode conductive film 8 with
And core bag 7.Core bag 7 is constituted by being anodizing to aluminium foil 71, Cathode Foil 72, electrolytic paper 73 and polymer dielectric.The upper end of core bag 7
Positive terminal 1, the lower weld cathode conductive film 5 of core bag 7 are welded on welding cathode conductive film 8, cathode conductive film 8.The He of glue lid 3
Aluminum hull 4 is separately positioned on top and the surrounding of core bag 7, and aluminum hull 4 is welded with cathode conductive film 5, the bottom of aluminum hull 4 connection negative terminal
2, aluminum hull 4 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 solid electrolyte/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 19mm；Electrolytic paper cuts width
Spend for 19mm；Appropriate anode foil is chosen, width is cut for 19mm.
(2) above-mentioned electrolytic paper will be intervened between cathode foil and anode foil, is wound into core bag, wherein, cathode foil and negative pole
The width of paper tinsel is equal so that the upper end of cathode foil is exposed more than electrolytic paper and anode foil in gained core bag, under anode foil
End is exposed more than electrolytic paper and cathode foil, and electrolytic paper keeps apart two paper tinsels between cathode foil and anode foil, not shape
Into short circuit, 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 be placed in can (electrolytic bath), the exposed portion of cathode foil upper end
Point upward, the exposed parts of anode foil bottom are erected in can down, then by cathode conductive film by cathode foil
The exposed parts of end are electrically connected with positive terminal, and multiple core bags are divided into multiple core bag rows, per on adjacent two core bags row
Core bag be staggered setting, each core bag row is mutually concatenated superposed positive terminal by fixture or iron bar, then will be many
The fixture or iron bar of individual core bag row 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 phosphate forming liquid.
(5) the core bag after chemical conversion is carried out successively cleaning and drying 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 1 hour at 130 DEG C of temperature.
(6) above-mentioned dried core bag is placed in the groove for containing monomer solution and be 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, polymerization time
For 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, polymerization
Time is 2 hours；4th section of polymerization temperature is 145 ± 2 DEG C, and polymerization time is 1 hour.
(8) first the polymer dielectric on the surface of exposed anode foil is removed, then will using ultrasonic bond or Laser Welding
Cathode conductive film is welded and fixed with aluminum hull, and core then is packed into gluing lid, is fitted into and is externally provided with the aluminum hull of insulating barrier (PE resins),
Cathode conductive film and aluminum hull are welded with ultrasonic bond, then aluminum hull and the Jiao Gai form sealed by rolling are sealed, that is, completed
Encapsulation.
(9) aluminum hull and the Jiao Gai form sealed by rolling are sealed, then controls the baking oven at 125 DEG C in environment temperature
In, apply 5V, 15V, 25V and 30V voltage respectively, the time is set to 30 minutes, 30 minutes, 30 minutes and 60 minutes, entered
Row aging, produces copolymer solid electrolyte aluminium 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 2 of leakage current, totally 4 defective products, examination
It is 98.67% to test yields, while ESR values are relatively uniform, and the amplitude of ESR values fluctuation is smaller, therefore, the homogeneity of product
It is good.
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 | 825.3 | 2.28 | 4.3 | 9.8 |
| 2 | 824.6 | 2.20 | 4.5 | 9.6 |
| 3 | 824.8 | 2.18 | 4.4 | 9.8 |
| 4 | 825.8 | 2.18 | 4.5 | 9.4 |
| 5 | 826.6 | 2.24 | 4.2 | 9.6 |
| 6 | 825.7 | 2.16 | 4.4 | 9.6 |
| 7 | 826.5 | 2.18 | 4.3 | 9.4 |
| 8 | 825.7 | 2.23 | 4.5 | 9.8 |
| 9 | 825.3 | 2.20 | 4.4 | 9.5 |
| 10 | 824.5 | 2.18 | 4.4 | 9.4 |
| Maximum | 826.6 | 2.28 | 4.5 | 9.8 |
| Minimum value | 824.5 | 2.18 | 4.2 | 9.4 |
| Average value | 825.48 | 2.203 | 4.39 | 9.59 |
Comparative example 1
The present embodiment provides a kind of copolymer solid electrolyte aluminium electrolutic capacitor, and specification is 25V820 μ F, production quantity
For 300, and the structure of capacitor is identical with embodiment 1, and 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 19mm；Electrolytic paper cuts width
Spend for 19mm；Appropriate anode foil is chosen, width is cut for 19mm.
(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, the core bag adhesive tape ring of winding is around clinging fixation.
(3), the core bag of winding is sent in battery formation clamp by chemical conversion machine, dipping 10 minutes in forming liquid are put into, so
Afterwards using fixture as positive pole, forming liquid is powered as negative pole, is melted into 25 minutes, wherein formation voltage is 50V, forming liquid
For phosphate 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 on exposed anode foil surface and the cathode foil surface of leakage is removed, first using ultrasonic bond or sharp
Cathode conductive film is welded and fixed by flush weld with aluminum hull, then removes the polymer dielectric on the surface of exposed anode foil, will
Core packs gluing lid, is fitted into and is externally provided with the aluminum hull of insulating barrier (PE resins), is welded cathode conductive film and aluminum hull with ultrasonic bond,
Then aluminum hull and the Jiao Gai form sealed by rolling are sealed, that is, completes encapsulation.
(7) product is put into temperature control in 125 DEG C of baking oven, applies 5V respectively, 15V, 25V and 30V 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 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 ESR value sizes fluctuation it is also obvious that fraction defective
Reduction.
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 copolymer solid electrolyte aluminium electrolutic capacitor that a kind of specification is 10V2200 μ F, and its is basic
Structure be the same as Example 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 14mm；Electrolytic paper is cut
Width is 14mm；Appropriate anode foil is chosen, width is cut for 14mm.
(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,
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 90 DEG C；Dry and carried out 1 hour 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, 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 5 minutes, then carries out the vacuum impregnation of 3 minutes, finally carries out the pressurization of 6 minutes
Impregnation, wherein oxidant are p-methyl benzenesulfonic acid.
(7) heating polymerization, is carried out, and using four-part form polymerization, wherein first paragraph polymerization temperature is 43 ± 2 DEG C, during polymerization
Between be 4 hours；Second segment polymerization temperature is 64 ± 2 DEG C, and polymerization time is 1 hour；Three stage polymerization temperature is 86 ± 2 DEG C, is gathered
The conjunction time is 2 hours；4th section of polymerization temperature is 147 ± 2 DEG C, and polymerization time is 1 hour.
(8), first cathode conductive film and aluminum hull are welded and fixed using ultrasonic bond or Laser Welding, then by exposed anode foil
Surface polymer dielectric remove, by core pack gluing lid, is fitted into and is externally provided with the aluminum hull of insulating barrier (PE resins), with surpass
Sonic soldering welds cathode conductive film and aluminum hull, then seals aluminum hull and the Jiao Gai form sealed by rolling, that is, completes encapsulation.
(9), aluminum hull and the Jiao Gai form sealed by rolling are sealed, then the baking at 125 DEG C is controlled in environment temperature
In case, apply 2V, 8V, 10V and 12V voltage respectively, the time is set to 30 minutes, 30 minutes, 30 minutes and 60 minutes, entered
Row aging, produces solid electrolyte/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 defective products,
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 | 2205.2 | 2.56 | 4.1 | 22 |
| 2 | 2201.8 | 2.44 | 4.0 | 23 |
| 3 | 2203.1 | 2.44 | 4.1 | 21 |
| 4 | 2201.2 | 2.54 | 3.9 | 22 |
| 5 | 2203.5 | 2.56 | 4.3 | 25 |
| 6 | 2204.3 | 2.45 | 4.2 | 25 |
| 7 | 2204.1 | 2.38 | 4.1 | 25 |
| 8 | 2206.2 | 2.39 | 4.0 | 23 |
| 9 | 2200.3 | 2.49 | 4.1 | 28 |
| 10 | 2203.3 | 2.65 | 4.2 | 26 |
| Maximum | 2206.2 | 2.65 | 4.3 | 28 |
| Minimum value | 2200.3 | 2.38 | 3.9 | 21 |
| Average value | 2203.3 | 2.49 | 4.1 | 24 |
Comparative example 2
The present embodiment provides a kind of copolymer solid electrolyte aluminium electrolutic capacitor, and specification is 10V2200 μ F, production quantity
For 300, and the structure of capacitor is identical with embodiment 1, and difference is preparation method.
The preparation method process 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 14mm；Electrolytic paper is cut
Width is 14mm；Appropriate anode foil is chosen, width is cut for 14mm.
(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, the core bag adhesive tape ring of winding is around clinging fixation.
(3), the core bag of winding is sent in battery formation clamp by chemical conversion machine, dipping 10 minutes in forming liquid are put into, so
Afterwards using fixture as positive pole, forming liquid is powered as negative pole, is melted into 25 minutes, wherein formation voltage is 20.5V, chemical conversion
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 on exposed anode foil surface and the cathode foil surface of leakage is removed, first using ultrasonic bond or sharp
Cathode conductive film is welded and fixed by flush weld with aluminum hull, then removes the polymer dielectric on the surface of exposed anode foil, will
Core packs gluing lid, is fitted into and is externally provided with the aluminum hull of insulating barrier (PE resins), is welded cathode conductive film and aluminum hull with ultrasonic bond,
Then aluminum hull and the Jiao Gai form sealed by rolling are sealed, that is, completes encapsulation.
(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 4 of leakage current, ESR values are above standard value
Have 3, totally 10 defective products, experiment yields is 96.67%, 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 50V voltage measurements.
Table 4
| Sequence number | Capacity (uf) | It is lost (100%) | ESR(mΩ) | Leakage current (uA/1 minutes) |
| Specification | 1760~2640 | 6% | 8 | 2050 |
| 1 | 2204.6 | 2.25 | 4.8 | 20 |
| 2 | 2205.5 | 2.56 | 4.9 | 21 |
| 3 | 2204.5 | 2.42 | 4.4 | 31 |
| 4 | 2205.2 | 2.34 | 6.2 | 43 |
| 5 | 2206.2 | 2.41 | 6.0 | 23 |
| 6 | 2205.5 | 2.54 | 4.9 | 26 |
| 7 | 2206.9 | 2.32 | 4.3 | 34 |
| 8 | 2205.9 | 2.31 | 6.5 | 25 |
| 9 | 2204.4 | 2.47 | 5.8 | 37 |
| 10 | 2204.6 | 2.52 | 4.6 | 45 |
| Maximum | 2206.9 | 2.56 | 6.5 | 45 |
| Minimum value | 2204.4 | 2.25 | 4.3 | 20 |
| Average value | 2205.33 | 2.414 | 4.94 | 30.5 |
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 solid electrolyte/aluminum electrolytic capacitor, the solid electrolyte/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 consolidates
Body electrolyte aluminium electrolutic capacitor also includes the positive conductive welded respectively with the exposed parts of described cathode foil and anode foil
Piece and cathode conductive film, described positive terminal are welded on the cathode conductive film, the negative terminal and the aluminum hull
Bottom is connected, and the cathode conductive film is also mutually welded with the aluminum hull, and described manufacture method includes the winding carried out successively
The step of forming core bag, carburising step, chemical conversion step, impregnation step, heating polymerization procedure, encapsulation step and Aging Step,
Wherein described winding core bag step is：Electrolytic paper will be intervened between cathode foil and anode foil, be wound into core bag, wherein, it is described
Cathode foil is equal with the width of anode foil so that the upper end of the cathode foil described in gained core bag exceedes electrolytic paper and anode foil
And it is exposed, and the bottom of the anode foil exceedes electrolytic paper and cathode foil is exposed, and the core bag adhesive tape ring of winding is solid around clinging
It is fixed,
It is characterized in that：Described electrolytic paper is made up of three layers of non-woven fabrics, and wherein the upper and lower are respectively 10 ~ 30 μm of thickness
Terylene spun-bonded non-woven fabrics；Intermediate layer is the PET non-woven fabrics of 10 ~ 40 μm of thickness, and the terylene for constituting the 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 the PET non-woven fabrics is 0.5 ~ 2.0 μm；
Described chemical conversion step is：The core bag is put into the electrolytic bath with forming liquid, by the cathode foil upper end of core bag
Exposed parts be melted into power supply positive pole electrically connect, by the exposed parts of the anode foil bottom of core bag with chemical conversion power supply bear
Pole is electrically connected, during chemical conversion, while the cathode foil and anode foil to core bag are powered.
2. the manufacture method of solid electrolyte/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 in the anode foil upper end edge of core bag
Below.
3. the manufacture method of solid electrolyte/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 solid electrolyte/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 solid electrolyte/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 solid electrolyte/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 solid electrolyte/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 solid electrolyte/aluminum electrolytic capacitor according to claim 1, it is characterised in that：The heating
Polymerization procedure polymerize for four-part form, and wherein first paragraph polymerization temperature is 35 DEG C ~ 45 DEG C, and polymerization time is 4 ~ 6 hours；Second segment gathers
It is 55 DEG C ~ 70 DEG C to close temperature, and polymerization time is 1 ~ 3 hour；Three stage polymerization temperature is 80 DEG C ~ 90 DEG C, and polymerization time is 2 ~ 5 small
When；4th section of polymerization temperature is 130 DEG C ~ 150 DEG C, and polymerization time is 1 ~ 3 hour.
9. the manufacture method of solid electrolyte/aluminum electrolytic capacitor according to claim 1, it is characterised in that：The encapsulation
Step is：First cathode conductive film is welded and fixed with aluminum hull using ultrasonic bond or Laser Welding, then by the table of exposed anode foil
The polymer dielectric in face is removed, and is welded the exposed part of anode foil and cathode conductive film with laser, then by aluminum hull with
The form that Jiao Gai is sealed by rolling is sealed, that is, completes encapsulation.
10. the manufacture method of solid electrolyte/aluminum electrolytic capacitor according to claim 1, it is characterised in that：In aging
While the step of also carry out testing, sorting, wherein, high temperature ageing condition is as follows：Environment temperature control 85 DEG C~200 DEG C it
Between, it is respectively 20% to apply voltage, 80%, 100% and 120% operating voltage, and ageing time is 10~240 minutes.
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| CN114068192A (en) * | 2021-11-20 | 2022-02-18 | 深圳市力容电子有限公司 | Ultra-low temperature rise core package of high-voltage aluminum electrolytic capacitor |
| CN114156090A (en) * | 2021-11-26 | 2022-03-08 | 佛山市三水日明电子有限公司 | Manufacturing process of cover plate type high-voltage solid aluminum electrolytic capacitor |
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