CN107331519A - A kind of manufacture method of solid-state capacitor - Google Patents
A kind of manufacture method of solid-state capacitor Download PDFInfo
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- CN107331519A CN107331519A CN201710685782.0A CN201710685782A CN107331519A CN 107331519 A CN107331519 A CN 107331519A CN 201710685782 A CN201710685782 A CN 201710685782A CN 107331519 A CN107331519 A CN 107331519A
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- Prior art keywords
- core bag
- out tablet
- manufacture method
- solid
- pole lead
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- 239000003990 capacitor Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 26
- 239000011888 foil Substances 0.000 claims abstract description 61
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 40
- 238000005470 impregnation Methods 0.000 claims abstract description 35
- 239000000126 substance Substances 0.000 claims abstract description 32
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- 230000032683 aging Effects 0.000 claims abstract description 15
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 7
- 238000005538 encapsulation Methods 0.000 claims abstract description 6
- 238000005868 electrolysis reaction Methods 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 27
- 239000000178 monomer Substances 0.000 claims description 21
- 239000007800 oxidant agent Substances 0.000 claims description 18
- 230000001590 oxidative effect Effects 0.000 claims description 18
- 239000003822 epoxy resin Substances 0.000 claims description 15
- 229920000647 polyepoxide Polymers 0.000 claims description 15
- 239000012212 insulator Substances 0.000 claims description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical group C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 8
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 229920002379 silicone rubber Polymers 0.000 claims description 5
- 229930192474 thiophene Natural products 0.000 claims description 4
- 229910019142 PO4 Inorganic materials 0.000 claims description 3
- 238000002386 leaching Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims 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 claims description 2
- 239000001741 Ammonium adipate Substances 0.000 claims description 2
- 235000019293 ammonium adipate Nutrition 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- 239000010452 phosphate 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
- 229950004288 tosilate Drugs 0.000 claims description 2
- 238000002242 deionisation method Methods 0.000 claims 1
- 239000007784 solid electrolyte Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 claims 1
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 11
- 229920001568 phenolic resin Polymers 0.000 description 11
- 239000005011 phenolic resin Substances 0.000 description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- 230000015572 biosynthetic process Effects 0.000 description 10
- 239000000741 silica gel Substances 0.000 description 10
- 229910002027 silica gel Inorganic materials 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 7
- 239000007787 solid Substances 0.000 description 7
- 238000001035 drying Methods 0.000 description 6
- 229920001971 elastomer Polymers 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 240000000907 Musa textilis Species 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical compound [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000003763 carbonization Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000002950 deficient Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 235000019837 monoammonium phosphate Nutrition 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000006193 liquid solution Substances 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 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
- H01G9/008—Terminals
- H01G9/012—Terminals specially adapted for solid 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
- H01G9/15—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 a kind of manufacture method of solid-state capacitor, the solid-state capacitor includes aluminum hull, sets core bag, cover plate, positive terminal, negative terminal, positive pole lead-out tablet, negative pole lead-out tablet, the manufacture method includes winding core bag step, carburising step, chemical conversion step, impregnation step, heating polymerization procedure, encapsulation step and the Aging Step carried out successively, and the winding core bag step is：With electrolysis folder with cathode foil and anode foil, core bag is rolled into, wherein positive pole lead-out tablet, one end of negative pole lead-out tablet is connected with cathode foil and anode foil respectively, and the other end is free end；Being melted into step is：Core bag is put into electrolytic bath, while respectively being electrically connected the free end of positive pole lead-out tablet and negative pole lead-out tablet with being melted into the positive pole and negative pole of power supply using fixture, during chemical conversion, while the cathode foil and anode foil to core bag are powered.The present invention can not only reduce the series equivalent resistance of capacitor, and small with the size fluctuating range of the ESR values of batch capacitor, 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 method of solid-state capacitor.
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 step of manufacture method of solid-state capacitor forms core bag including the winding carried out successively, carburising step is right
Core bag carries out the chemical conversion step of chemical conversion repair process, is impregnated with monomer step, is impregnated with oxidant step, heats polymerization procedure, encapsulation
Step and Aging Step, wherein chemical conversion step is also very important, its result being melted into directly affects the ESR of capacitor
Value.
However, in the prior art, its chemical conversion step used includes：Multiple core bags are arranged closely on posting frame simultaneously
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 carrier is put into the electrolytic bath equipped with forming liquid, clamping plate connection power supply
Positive pole, power-up is melted into, and the clamping plate includes a pair of ing jaw bodies being made up of phenolic resin and is arranged at a pair of clamping plate sheets
It is used for the aluminium strip for clamping positive pole lead-out tablet on the inner surface of body.
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-state capacitor
Manufacture method, it can not only reduce the series equivalent resistance of capacitor, and the big small echo of the ESR values with batch capacitor
Dynamic amplitude is small, and the homogeneity of product is good, and fraction defective declines.
To solve above technical problem, a kind of technical scheme that the present invention takes is：
A kind of manufacture method of solid-state capacitor, the solid-state capacitor includes aluminum hull, the core bag being arranged in aluminum hull, set
Cover plate, positive terminal, negative terminal, positive pole lead-out tablet, the negative pole lead-out tablet being tightly connected at the top of core bag and with aluminum hull, wherein
Core bag includes cathode foil, anode foil, the electrolytic paper and polymer dielectric being arranged between cathode foil and anode foil, the manufacture
Method includes winding core bag step, carburising step, chemical conversion step, impregnation step, heating polymerization procedure, the encapsulation step carried out successively
Rapid and Aging Step, the winding core bag step is：With electrolysis folder with cathode foil and anode foil, core bag, wherein positive pole are rolled into
Lead-out tablet, one end of negative pole lead-out tablet are connected with cathode foil and anode foil respectively, and the other end is free end；It is melted into step
For：Core bag is put into electrolytic bath, while using fixture respectively by the free end and chemical conversion of positive pole lead-out tablet and negative pole lead-out tablet
Positive pole and the negative pole electrical connection of power supply, 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, positive pole lead-out tablet and negative pole lead-out tablet from
By holding positioned at the top of core bag and setting upward.
Preferably, the forming liquid liquid level in electrolytic bath is flushed with the upper edge of core bag.
Further, multiple core bags are divided into multiple core bag rows, and are staggered per the core bag on adjacent two core bags row
Set.
According to one of present invention specific implementation and preferred aspect, fixture, which includes arranging with multiple core bags, corresponds what is set
Clamping, the clamping includes arranging the cleat insulator of length direction extension, the positive strap positioned at cleat insulator both sides along core bag
And negative strap, wherein positive strap and negative strap along cleat insulator length direction extend, positive pole lead-out tablet and
The free end of negative pole lead-out tablet is electrically connected with positive strap and negative strap respectively, positive strap and negative strap point
Do not electrically connected with being melted into the positive pole and negative pole of power supply.
Preferably, the material of cleat insulator is epoxy resin or silicon rubber.In this example, cleat insulator is phenolic resin plate.
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, the monomer
For thiophene-based material；Being impregnated with oxidant step is：Core bag is placed in the impregnating groove for containing oxidant, is first carried out 2~10 minutes
Normal pressure is impregnated with, then carries out the vacuum impregnation of 1~4 minute, then carries out the pressurization impregnation of 2~10 minutes, wherein, the oxidant is
P-methyl benzenesulfonic acid or tosilate, the normal pressure, which is impregnated with, to be referred to by the interior core bag direct impregnation for normal pressure in oxidant,
The vacuum impregnation refers to first be evacuated to vacuum inside core bag for 70~100KPa, is then impregnated in again in oxidant；
It is 2~4atm that the pressurization impregnation, which is directed to be passed through compressed air to pressure inside core bag, is then impregnated in again in oxidant.
Preferably, forming liquid is phosphate forming liquid, boric acid system forming liquid or ammonium adipate system forming liquid.
It is used in addition, above-mentioned solid electrolytic capacitor also includes being fixed on cover plate upper surface by capacitor and circuit
Connector and be filled between the aluminum hull madial wall and core bag outer wall for making completely not having therebetween that plate is mutually welded
The obturator in space.
Further, connector is shaped as ox horn capillary, weld tabs or bolt；Obturator is epoxy resin or silicon rubber.
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 schematic cross-sectional view of the capacitor of embodiment 1；
Fig. 2 is the structural representation of Fig. 1 SMIS bags；
Fig. 3 is Fig. 1 SMIS bag and cover plate deployed condition schematic diagram (not installing)；
Fig. 4 is the schematic top plan view of Fig. 1 cover plates；
Fig. 5 is the partial schematic diagram that Examples 1 and 2 capacitor is in chemical conversion step；
Fig. 6 is the schematic front view that Examples 1 and 2 capacitor is in chemical conversion step；
Fig. 7 is the partial schematic diagram that the capacitor of comparative example 1 and 2 is in chemical conversion step；
Fig. 8 is the schematic front view that the capacitor of comparative example 1 and 2 is in chemical conversion step；
Wherein：1st, aluminum hull；2nd, core bag；20th, cathode foil；21st, anode foil；22nd, electrolytic paper；3rd, cover plate；30th, phenolic resin plate
Layer；31st, rubber layer；32nd, projection；4th, positive terminal；5th, negative terminal；6th, positive pole lead-out tablet；7th, negative pole lead-out tablet；8th, connector
(ox horn capillary or bolt)；9th, obturator；10th, insulated plastic flitch；11st, sebific duct；A, electrolytic bath；B, fixture；B1, clamping；b10、
Cleat insulator；B11, positive strap；B12, negative strap；12nd, rod is pressed from both sides.
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. 6, the present embodiment provides a kind of solid electrolytic capacitor, and it includes aluminum hull 1, is arranged in aluminum hull 1
Core bag 2, be arranged on the top of core bag 2 and the cover plate 3, positive terminal 4, the negative terminal 5 that are tightly connected with aluminum hull 1, core bag 2 includes
Cathode foil 20, anode foil 21, the electrolytic paper 22 being arranged between cathode foil 20 and anode foil 21 and polymer dielectric are (in figure
Do not show).
Specifically, cover plate 3 includes phenolic resin flaggy 30 and is fixed at the rubber layer of the upper surface of phenolic resin flaggy 30
31。
Further, projection 32, core bag 2 have been downwardly extending from the lower surface of phenolic resin flaggy 30 on cover plate 3
Top be formed with hole (not shown), projection 32 inserts in the hole to compress cover plate 3 with core bag 2 and is connected.
In this example, above-mentioned solid electrolytic capacitor also includes positive pole lead-out tablet 6 and negative pole lead-out tablet 7, positive pole lead-out tablet 6
Lower end be connected with cathode foil 20, upper end and cover plate 3 are connected, the lower end of negative pole lead-out tablet 7 is connected with anode foil 21, upper end and lid
Plate 3 is connected.Positive terminal 4 and negative terminal 5 are connected with positive pole lead-out tablet 6 and negative pole lead-out tablet 7 at cover plate 3 respectively.
Further, the upper end of positive pole lead-out tablet 6 and negative pole lead-out tablet 7 is respectively by rivet in (the phenolic aldehyde tree of cover plate 3
Fat flaggy 30) on.
Further, positive pole lead-out tablet 6 and negative pole lead-out tablet 7 have multigroup respectively, multigroup positive pole lead-out tablet 6 and multigroup negative level
Lead-out tablet 7 is respectively along the radial distribution of core bag 2, and the upper end of multigroup positive pole lead-out tablet 6 is connected with positive terminal 4, multigroup
The upper end of negative pole lead-out tablet 7 is connected with negative terminal 5.It is very suitable for making the capacitor of larger capacity.
Meanwhile, solid electrolytic capacitor also includes being fixed on the upper surface of cover plate 3 and is used for capacitor and line in this example
Connector 8 and be filled between the madial wall of aluminum hull 1 and the outer wall of core bag 2 for making completely not having therebetween that road plate is mutually welded
The obturator 9 in space.The obturator 9 is provided with two effects, and one be easy for the positioning (stability) of core bag 2；Two be to improve
Insulation and sealing effectiveness.
Specifically, connector 8 is shaped as ox horn capillary, weld tabs or bolt.In this example, ox horn capillary is employed.Filling
Body 9 is epoxy resin or silicon rubber.
In this example, the formation device that is used in chemical conversion, it includes electrolytic bath a, for by the positive pole lead-out tablet of core bag 2
The 6 and negative pole lead-out tablet 7 and fixture b that is electrically connected of chemical conversion power supply.
Specifically, multiple core bags 2 are in chemical conversion, and it is rows of to be placed in electrolytic bath a, therefore, multiple core bag rows are formed, together
When positive pole lead-out tablet 6 and negative pole lead-out tablet 7 free end be located at core bag top and set upward.
Further, the core bag sequence on two neighboring core bag row is set, and several groups of cores can be put in such electrolytic bath a more
Bag row.
One fixture b of each core bag row's correspondence, fixture b, which includes arranging with multiple core bags, corresponds the clamping b1 set,
Clamping b1 includes arranging the cleat insulator b10 of length direction extension, the positive pole connection positioned at cleat insulator b10 both sides along core bag
Bar b11 and negative strap b12, wherein positive strap b11 and negative strap b12 are along cleat insulator b10 length directions
The free end of extension, positive pole lead-out tablet 6 and negative pole lead-out tablet 7 is electrically connected with positive strap b11 and negative strap b12 respectively
Connect, positive strap b11 and negative strap b12 are electrically connected with being melted into the positive pole and negative pole of power supply respectively.
Cleat insulator b10 material is epoxy resin or silicon rubber.In this example, cleat insulator b10 is phenolic resin plate.
In addition, the bottom face of aluminum hull 1 is provided with insulated plastic flitch 10.The periphery of aluminum hull 1 is coated with insulation rubber tube 11, the glue
Pipe 11 is made up of heat-shrinkage material.
Meanwhile, the manufacture method of solid-state capacitor includes the following steps carried out successively in this example：
(1) formation voltage, is used for 23VF cathode foil, using the anode foil that capacitance is infinitely great, in cathode foil and negative
Abaca electrolytic paper is intervened between the paper tinsel of pole and the core bag that theoretical capacity is 29000 μ F is wound into；
(2), carried out at 260 ± 5 DEG C, carbonization time is 2 hours；
(3), be placed on step (2) core bag is rows of in electrolytic bath, at the same by the cathode foil of each core bag of every row and
Anode foil is drawn and forms free end upwards by positive pole lead-out tablet and negative pole lead-out tablet from the top of core bag respectively, is then passed through
Fixture by the free end of positive pole lead-out tablet and negative pole lead-out tablet respectively be melted into power supply positive pole and negative pole be mutually electrically connected, then to
Forming liquid (10wt% ammonium dihydrogen phosphate aqueous solutions) is added in electrolytic bath, is first soaked 10 minutes, then while to the positive pole of core bag
Paper tinsel and anode foil are powered, and under conditions of formation voltage is 23V, are melted into 40 minutes, complete chemical conversion repair process；
(4) process cleaned and dried in deionized water, is carried out successively to core bag, the resistivity of wherein deionized water is not small
In 5M Ω, water temperature is 70 DEG C；Dry and carried out 2 hours at 130 ± 5 DEG C of temperature；
(5) monomer impregnation, is carried out to core bag, 5 minutes time is impregnated with, specifically, it is molten that core bag is integrally moved into splendid attire monomer
It is impregnated with the groove of liquid, the monomer is thiophene-based material, and when carrying out monomer impregnation, the height of core bag 2/3 is in impregnation liquid level
Below；
(6) the core bag after, monomer is impregnated with is dried under the conditions of 50 DEG C, the time 2 h of drying, then by core Bao Zaifang
Enter to contain and be impregnated with the groove of oxidant, the normal pressure specifically first carried out 2~8 minutes is impregnated with, then carry out 1~3 minute true
Sky impregnation, the pressurization finally carried out 2~3 minutes is impregnated with.
(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), core bag is connected with cover plate, is then placed in aluminum hull, injection epoxy resin or silica gel or combination, and
Solidification, makes to be filled with the epoxy resin and/or silica gel between aluminum hull madial wall and core bag outer wall, and completely without space, lid
Plate includes phenolic resin flaggy and is fixed at the rubber layer of the phenolic resin flaggy upper surface, and the upper surface of cover plate is provided with use
In the connector that capacitor is connected with wiring board, positive terminal and negative terminal are drawn with positive pole lead-out tablet and negative pole respectively
Piece is connected at cover plate；
(9), segmented burin-in process and sorting test：Applied 20 minutes with 5V voltages, then apply 20 points with 10V voltages
Clock, is finally applied 40 minutes with 12V voltages and carries out burin-in process, 125 ± 10 DEG C of aging temperature.Aging terminates extraction 10PCS and entered
Row test.As a result referring to table 1.
Table 1
Comparative example 1
The capacitor arrangement that the present embodiment is related to is identical with embodiment 1, and difference is specific forming step
(with reference to Fig. 7 and Fig. 8)：
1) formation voltage, is used for 23VF cathode foil, using the anode foil that capacitance is infinitely great, in cathode foil and negative pole
Abaca electrolytic paper is intervened between paper tinsel and the core bag that theoretical capacity is 29000 μ F is wound into；
2), carried out at 260 ± 5 DEG C, carbonization time is 2 hours；
3), it is placed on step (2) core bag is rows of in electrolytic bath, while by the cathode foil of each core bag of every row and negative
Pole paper tinsel is drawn and forms free end upwards by positive pole lead-out tablet and negative pole lead-out tablet from the top of core bag respectively, then with folder rod
12 clamp the free end of row's positive pole lead-out tablet, and forming liquid is then added into electrolytic bath, and (10wt% ammonium dihydrogen phosphates are water-soluble
Liquid), first soak 10 minutes, then to the cathode foil energization of core bag, and under conditions of formation voltage is 23V, change 35 minutes, i.e.,
Complete the chemical conversion reparation of cathode foil；
4) after the completion of, being melted into, core bag is cleaned, and dried at 130 ± 5 DEG C of temperature, its time dried is 2 small
When；
5) monomer, is impregnated with, it is single that the core bag of the transmission frame and position after chemical conversion, cleaning, drying in the inner is integrally moved into splendid attire
It is impregnated with, is then dried under the conditions of 50 DEG C, the time 2 h of drying in the groove of liquid solution；
6) oxidant, is impregnated with again, and specifically using special dipping device, core bag is put into the elongated impregnation of special dipping device
Groove, then carries out the normal pressure impregnation of 4~7 minutes, then carries out the vacuum impregnation of 2~3 minutes, then the pressurization carried out 3~6 minutes contains
Leaching；
7), heating polymerization, is polymerize using four-part form, and wherein first paragraph polymerization temperature is 42 ± 2 DEG C, and polymerization time is 4 small
When；Second segment polymerization temperature is 65 ± 2 DEG C, and polymerization time is 1 hour；Three stage polymerization temperature is 87 ± 2 DEG C, and polymerization time is
2 hours；4th section of polymerization temperature is 145 ± 2 DEG C, and polymerization time is 1 hour；
8), encapsulate, core bag is connected with cover plate, is then placed in aluminum hull, injection epoxy resin or silica gel or the group of the two
Close, vacuumize, solidify under conditions of 120 ± 2 DEG C, re-inject epoxy resin or silica gel or combination, vacuumize,
Solidify under conditions of 80 DEG C, make to be filled with epoxy resin and/or silica gel between aluminum hull madial wall and core bag outer wall, and do not have completely
Space, last edge curling seal；
9), aging, positive source is connected by the positive pole of the capacitor after encapsulation, and segmented burin-in process and sorting are tested：
Applied 20 minutes with 5V voltages, then applied 20 minutes with 10V voltages, finally applied 40 minutes with 12V voltages and carry out burin-in process,
125 ± 10 DEG C of aging temperature.Aging terminates to extract 10PCS progress test results referring to table 1.
Table 2
Therefore, it is compared by embodiment 2 with comparative example 1, it is clear that draw, the capacitor product ESR in embodiment 2 is initial
Value compare it is smaller, and be evenly distributed simultaneously life test 125 DEG C after 5000 hours ESR test values also than more uniform, change width
Degree is also small, and the homogeneity of product is more preferable.
Embodiment 3
The manufacture method for the solid capacitor product that the present embodiment is provided, it includes the following steps carried out successively：
(1) formation voltage, is used for 32VF cathode foil, using the anode foil that capacitance is infinitely great, in cathode foil and negative
Abaca electrolytic paper is intervened between the paper tinsel of pole and the core bag that theoretical capacity is 17670 μ F is wound into；
(2), core bag is put in the container that stainless steel is made, is put in the high temperature oven that temperature is 265 ± 5 DEG C and carries out carbon
Change is handled；
(3), be placed on step (2) core bag is rows of in electrolytic bath, at the same by the cathode foil of each core bag of every row and
Anode foil is drawn and forms free end upwards by positive pole lead-out tablet and negative pole lead-out tablet from the top of core bag respectively, is then passed through
Fixture by the free end of positive pole lead-out tablet and negative pole lead-out tablet respectively be melted into power supply positive pole and negative pole be mutually electrically connected, then to
Forming liquid (10wt% phosphates forming liquid) is added in electrolytic bath, 10 minutes are first soaked, then simultaneously to the cathode foil of core bag and
Anode foil is powered, and under conditions of formation voltage is 32V, is melted into 40 minutes, completes chemical conversion repair process；
(4) process cleaned and dried in deionized water, is carried out successively to core bag, the resistivity of wherein deionized water is not small
In 5M Ω, water temperature is 80 DEG C；Dry and carried out 2 hours at 130 ± 5 DEG C of temperature；
(5) monomer impregnation, is carried out to core bag, 3 minutes time is impregnated with, specifically, it is molten that core bag is integrally moved into splendid attire monomer
It is impregnated with the groove of liquid, the monomer is thiophene-based material, and when carrying out monomer impregnation, 2/3 height of core bag, which is in, contains immersion liquid
Below face；
(6) the core bag after, monomer is impregnated with is dried under the conditions of 50 DEG C, the time 2 h of drying, then by core Bao Zaifang
Enter to contain and be impregnated with the groove of oxidant, the normal pressure specifically first carried out 2~5 minutes is impregnated with, then carry out 1~2 minute true
Sky impregnation, the pressurization finally carried out 3~6 minutes is impregnated with.
(7) heating polymerization, is carried out, and using four-part form polymerization, wherein first paragraph polymerization temperature is 40 ± 2 DEG C, during polymerization
Between be 5 hours；Second segment polymerization temperature is 62 ± 2 DEG C, and polymerization time is 2 hours；Three stage polymerization temperature is 85 ± 2 DEG C, is gathered
The conjunction time is 3 hours；4th section of polymerization temperature is 140 ± 2 DEG C, and polymerization time is 5 hours；
(8), core bag is connected with cover plate, is then placed in aluminum hull, injection epoxy resin or silica gel or combination, and
Solidification, makes to be filled with the epoxy resin and/or silica gel between aluminum hull madial wall and core bag outer wall, and completely without space, lid
Plate includes phenolic resin flaggy and is fixed at the rubber layer of the phenolic resin flaggy upper surface, and the upper surface of cover plate is provided with use
In the connector that capacitor is connected with wiring board, positive terminal and negative terminal are drawn with positive pole lead-out tablet and negative pole respectively
Piece is connected at cover plate；
(9), segmented burin-in process and sorting test：Applied 20 minutes with 8V voltages, then apply 20 points with 16V voltages
Clock, 19.2V voltages, which apply 40 minutes, carries out burin-in process, 125 ± 10 DEG C of aging temperature.Aging terminates extraction 10PCS and surveyed
Examination.As a result referring to table 3.
Table 3
Comparative example 2
The manufacture method (with reference to Fig. 7 and Fig. 8) for the capacitor product that this example is provided, it comprises the following steps：
1) formation voltage, is used for 32VF cathode foil, using the anode foil that capacitance is infinitely great, in cathode foil and negative pole
Abaca electrolytic paper is intervened between paper tinsel and the core bag that theoretical capacity is 17670 μ F is wound into；
2), carried out at 265 ± 5 DEG C, carbonization time is 4 hours；
3), it is placed on step (2) core bag is rows of in electrolytic bath, while by the cathode foil of each core bag of every row and negative
Pole paper tinsel is drawn and forms free end upwards by positive pole lead-out tablet and negative pole lead-out tablet from the top of core bag respectively, then with folder rod
12 clamp the free end of row's positive pole lead-out tablet, and forming liquid is then added into electrolytic bath, and (10wt% ammonium dihydrogen phosphates are water-soluble
Liquid), first soak 10 minutes, then to the cathode foil energization of core bag, and under conditions of formation voltage is 32V, change 35 minutes, i.e.,
Complete the chemical conversion reparation of cathode foil；
4) after the completion of, being melted into, core bag is cleaned, and dried at 140 ± 5 DEG C of temperature, its time dried is 1 small
When；
5) monomer, is impregnated with, it is single that the core bag of the transmission frame and position after chemical conversion, cleaning, drying in the inner is integrally moved into splendid attire
It is impregnated with, is then dried under the conditions of 50 DEG C, the time 2 h of drying in the groove of liquid solution；
6) oxidant, is impregnated with again, and specifically using special dipping device, core bag is put into the elongated impregnation of special dipping device
Groove, then carries out the normal pressure impregnation of 2~5 minutes, then carries out the vacuum impregnation of 1~2 minute, then the pressurization carried out 2~5 minutes contains
Leaching；
7), heating polymerization, is polymerize using four-part form, and wherein first paragraph polymerization temperature is 38 ± 2 DEG C, and polymerization time is 6 small
When；Second segment polymerization temperature is 60 ± 2 DEG C, and polymerization time is 3 hours；Three stage polymerization temperature is 85 ± 2 DEG C, and polymerization time is
3.5 hour；4th section of polymerization temperature is 140 ± 2 DEG C, and polymerization time is 2 hours；
8), encapsulate, core bag is connected with cover plate, is then placed in aluminum hull, injection epoxy resin or silica gel or the group of the two
Close, vacuumize, solidify under conditions of 125 ± 2 DEG C, re-inject epoxy resin or silica gel or combination, vacuumize,
Solidify under conditions of 80 DEG C, make to be filled with epoxy resin and/or silica gel between aluminum hull madial wall and core bag outer wall, and do not have completely
Space, last edge curling seal；
9), aging, positive source is connected by the positive pole of the capacitor after encapsulation, and segmented burin-in process and sorting are tested：
Applied 20 minutes with 8V voltages, then applied 20 minutes with 16V voltages, finally applied 40 minutes with 19.2V voltages and carried out at aging
Reason, 125 ± 10 DEG C of aging temperature.Aging terminates extraction 10PCS and tested.As a result referring to table 4.
Table 4
Therefore, it is compared, it is clear that draw, therefore, is carried out by embodiment 2 with comparative example 1 with comparative example 2 by embodiment 3
Compare, it is clear that draw, the capacitor product ESR initial values comparison in embodiment 2 is smaller, and the life-span examinations simultaneously that are evenly distributed
125 DEG C of ESR test values after 5000 hours are tested also than more uniform, and amplitude of fluctuation is also small, and the homogeneity of product is more preferable.
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.
Claims (10)
1. a kind of manufacture method of solid-state capacitor, the solid-state capacitor includes aluminum hull, the core bag being arranged in the aluminum hull, set
Cover plate, positive terminal, negative terminal, positive pole lead-out tablet, the negative pole put at the top of the core bag and be tightly connected with the aluminum hull
Lead-out tablet, the core bag include cathode foil, anode foil, the electrolytic paper that is arranged between the cathode foil and the anode foil and
Polymer dielectric, described manufacture method includes the winding core bag step carried out successively, carburising step, chemical conversion step, impregnation
Step, heating polymerization procedure, encapsulation step and Aging Step, wherein the winding core bag step is：With electrolysis folder with just
Pole paper tinsel and anode foil, are rolled into core bag, wherein one end of the positive pole lead-out tablet, negative pole lead-out tablet respectively with the cathode foil and negative
Pole paper tinsel is connected, and the other end is free end；
It is described chemical conversion step be：Core bag is put into electrolytic bath, while using fixture respectively by the positive pole lead-out tablet and described
The free end of negative pole lead-out tablet electrically connect with being melted into the positive pole and negative pole of power supply, during chemical conversion, while to the cathode foil of core bag and bearing
Pole paper tinsel is powered.
2. the manufacture method of solid-state capacitor according to claim 1, it is characterised in that：In the chemical conversion step, by institute
The core bag stated, which is erect, to be placed in described electrolytic bath, and the free end of the positive pole lead-out tablet and the negative pole lead-out tablet is located at institute
State the top of core bag and set upward.
3. the manufacture method of solid-state capacitor according to claim 2, it is characterised in that：Chemical conversion in described electrolytic bath
Liquid liquid level is flushed with the upper edge of the core bag.
4. the manufacture method of solid-state capacitor according to claim 1, it is characterised in that：Multiple core bags are divided into many
Individual core bag row, and the setting that is staggered per the core bag on adjacent two core bags row.
5. the manufacture method of solid-state capacitor according to claim 4, it is characterised in that：Described fixture include with it is multiple
The core bag row corresponds the clamping set, and described clamping includes arranging the insulating blanked clamper of length direction extension along the core bag
Plate, positive strap and negative strap positioned at the cleat insulator both sides, wherein described positive strap and negative pole connect
Narrow bars extend along the cleat insulator length direction, the free end of the positive pole lead-out tablet and negative pole lead-out tablet respectively with it is described
Positive strap and negative strap electrical connection, described positive strap and negative strap respectively with the chemical conversion power supply
Positive pole and negative pole electrical connection.
6. the manufacture method of solid-state capacitor according to claim 5, it is characterised in that：The material of described cleat insulator
For epoxy resin or silicon rubber.
7. the manufacture method of solid-state capacitor according to claim 1, it is characterised in that：The manufacture method is additionally included in
After chemical conversion step, before impregnation step, the step cleaned and dried in deionized water, wherein deionization are carried out successively to core bag
The resistivity of water is not less than 5M Ω, and water temperature is 20 DEG C~100 DEG C；Dry and carried out 1~3 hour at 110~150 DEG C of temperature.
8. the manufacture method of solid-state capacitor according to claim 1, it is characterised in that：Described impregnation step includes containing
Monomer step and impregnation oxidant step are soaked, wherein impregnation monomer step is：Core bag is integrally moved to the groove for containing monomer solution
Interior to be impregnated with, the monomer is thiophene-based material；Being impregnated with oxidant step is：Core bag is placed in the impregnating groove for containing oxidant
It is interior, the normal pressure impregnation of 2~10 minutes is first carried out, then the vacuum impregnation of 1~4 minute is carried out, then the pressurization carried out 2~10 minutes contains
Leaching, wherein, the oxidant is p-methyl benzenesulfonic acid or tosilate, and the normal pressure impregnation refers to the interior core bag for normal pressure
Direct impregnation is in oxidant, and the vacuum impregnation refers to first be evacuated to vacuum inside core bag for 70~100KPa, so
It is impregnated in again in oxidant afterwards；It is 2~4atm that the pressurization impregnation, which is directed to be passed through compressed air to pressure inside core bag, then
It is impregnated in again in oxidant.
9. the manufacture method of solid-state capacitor according to claim 1, it is characterised in that：The forming liquid is phosphate
Into liquid, boric acid system forming liquid or ammonium adipate system forming liquid.
10. the manufacture method of solid-state capacitor according to claim 1, it is characterised in that：Described solid electrolyte capacitor
Device also includes being fixed at the connector for being used for mutually welding capacitor and wiring board on the cover plate upper surface and is filled in
It is used to make therebetween the obturator without space completely between the aluminum hull madial wall and the core bag outer wall.
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| CN112908724A (en) * | 2021-01-19 | 2021-06-04 | 上海永铭电子股份有限公司 | Super capacitor and preparation method thereof |
| CN113990666A (en) * | 2021-11-04 | 2022-01-28 | 肇庆绿宝石电子科技股份有限公司 | SMD solid capacitor and manufacturing method thereof |
| US11342129B2 (en) * | 2018-06-21 | 2022-05-24 | KYOCERA AVX Components Corporation | Solid electrolytic capacitor with stable electrical properties at high temperatures |
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