CN109741955A - A kind of solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate - Google Patents
A kind of solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate Download PDFInfo
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- CN109741955A CN109741955A CN201910158741.5A CN201910158741A CN109741955A CN 109741955 A CN109741955 A CN 109741955A CN 201910158741 A CN201910158741 A CN 201910158741A CN 109741955 A CN109741955 A CN 109741955A
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Abstract
The invention discloses a kind of solid-state aluminum electrolytic capacitor preparation processes of high capacity extraction rate, are related to aluminium electrolutic capacitor field, are to solve the larger problem low with capacity extraction rate of leakage current.The present invention improves on existing Process ba- sis, after being impregnated with monomer and oxidant or being only impregnated with high molecular dispersion liquid, DC voltage is applied to sub-prime while polymerization is dry, then organize vertical, aging forms product, and the finished product of preparation has the advantages that capacity extraction rate height and leakage current are lower.
Description
Technical field
The present invention relates to aluminium electrolutic capacitor field, the solid-state aluminum electrolytic capacitor system of specifically a kind of high capacity extraction rate
Standby technique.
Background technique
Capacitor is a kind of device for accommodating charge, is one of the electronic component largely used in electronic equipment, answers extensively
It for the separated by direct communication in circuit, couples, bypasses, filtering, resonant tank, energy conversion, control etc..With electronic information
Technology is maked rapid progress, and the update speed of digital electronic goods is getting faster, with flat panel TV, laptop, number
Consumer electronics product volume of production and marketing sustainable growth based on the products such as camera has driven capacitor industry to increase.
Aluminium electrolutic capacitor is exactly a kind of common capacitor, including aluminum hull, core packet, Jiao Gai and anode and cathode terminals, core packet
Including cathode foil, anode foil, electrolytic paper and electroconductive polymer electrolyte.
The preparation method of existing solid-state aluminum electrolytic capacitor includes cutting, following closely volume, welding, chemical conversion, drying, pre-treatment, do
The processes such as vertical, cleaning, aging are organized in dry, impregnation, polymerization, and the existing soaking technology that contains includes: impregnation monomer, oxidant: impregnation monomer
Afterwards, into oven drying, it is impregnated with oxidant after dry, has been impregnated with after oxidant and has been directly placed into baking oven and carries out heating polymerization reaction；
It after the complete dispersion liquid of element soaking, is directly placed into baking oven and is dried, rubber plug is assembled after having dried and aluminum hull carries out group and stands, then
Aging, the product leakage current that this preparation method obtains is larger, does not apply under current conditions, polyelectrolyte movement speed
It is relatively slow, it can not be efficiently entering in the hole in cathode foil, so capacity extraction rate is lower.
Summary of the invention
The purpose of the present invention is to provide a kind of solid-state aluminum electrolytic capacitor preparation processes of high capacity extraction rate, to solve
The problems mentioned above in the background art.
To achieve the above object, the invention provides the following technical scheme:
A kind of solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate, the specific steps are as follows:
Positive paillon, negative paillon and barrier paper are cut into required width by step 1；
Step 2, by positive guide pin and negative guide pin difference nail joint on positive paillon and negative paillon, by after nail joint paillon with every
Sub-prime is coiled into from paper roll；
Sub-prime is welded on stainless steel iron bar by step 3, and carries out playing short circuit processing；
The sub-prime of step 3 is carried out chemical conversion treatment and drying, the sub-prime after being dried by step 4；
Step 5 by the element soaking pretreating reagent after drying and is dried, the sub-prime after being dried；
Sub-prime after drying is carried out impregnation monomer and oxidant or is only impregnated with high molecular dispersion liquid by step 6, single
Body is 3,4 ethylenedioxythiophene solution, and oxidant is at least one of p-methyl benzenesulfonic acid iron or p-methyl benzenesulfonic acid, macromolecule
Dispersion liquid is poly- 3,4 ethylenedioxythiophene solution, the sub-prime after being impregnated with；
Sub-prime after impregnation is applied the direct current of capacitor product voltage rating size by step 7 while polymerizeing dry
Voltage；
The sub-prime of step 7 is carried out group and stood, obtains semi-finished product by step 8；
Semi-finished product are carried out aging and charging to get finished product is arrived by step 9.
As a further solution of the present invention: using nailing machine by guide pin nail joint in step 2.
As a further solution of the present invention: welding manner uses spot welding in step 3, DC voltage when playing short circuit processing
It is 2-3 times of paillon pressure voltage.
As a further solution of the present invention: the time that pretreating reagent is impregnated in step 5 is 5-10min, and drying time is
60min-120min, drying temperature are 50 DEG C -140 DEG C.
As a further solution of the present invention: in step 6 be impregnated with monomer time be 1-5min, be impregnated with oxidant when
Between be 1-5min, need in temperature to be dry 20-40min in 40-55 DEG C of drying box after being impregnated with monomer.
As a further solution of the present invention: needing in temperature to be 120-200 after being impregnated with high molecular dispersion liquid in step 6
DEG C drying box in dry 60-120min.
As a further solution of the present invention: the sub-prime after being impregnated with monomer and oxidant in step 7 uses stage feeding polymerization work
Skill.
Compared with prior art, the beneficial effects of the present invention are: the present invention improves on existing Process ba- sis,
After being impregnated with monomer and oxidant or being only impregnated with high molecular dispersion liquid, direct current is applied to sub-prime while polymerization is dry
Pressure, then organize vertical, aging forms product, and the finished product of preparation has the advantages that capacity extraction rate height and leakage current are lower.
Specific embodiment
The technical solution of the patent is explained in further detail With reference to embodiment.
Embodiment 1
A kind of solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate, the specific steps are as follows:
Positive paillon, negative paillon and barrier paper are cut into required width by step 1；
Positive guide pin and negative guide pin are distinguished nail joint on positive paillon and negative paillon using nailing machine, after nail joint by step 2
Paillon and release paper be coiled into sub-prime；
Sub-prime is welded on stainless steel iron bar by step 3, and is carried out dozen short circuit processing and (played short circuit: being sub-prime nail clove hitch
After beam, the biggish DC voltage of sub-prime momentary connection generally uses 2 times of paillon pressure voltage of DC voltage, if it is larger to have an impact
Burr, which will appear spark, to choose the sub-prime of later period easily short circuit)；
The sub-prime of step 3 is carried out chemical conversion treatment and drying, the sub-prime after being dried by step 4；
Step 5, the element by the element soaking pretreating reagent 5min after drying, in 125 DEG C of drying 60min, after being dried
Son；
Sub-prime after drying is carried out impregnation monomer and oxidant by step 6, and the impregnation monomer time is 4min, has been impregnated with list
It is put into baking oven after body to be dried, drying temperature is 50 DEG C, time 30min, and dry to be impregnated with oxidant after the completion, the time is
Sub-prime after being impregnated with oxidant, is put into baking oven, carries out heating polymerization by 3min, is polymerize using six segmentations, and wherein first segment polymerize
Temperature is 40 DEG C, polymerization time 60min；Second segment polymerization temperature is 50 DEG C, polymerization time 90min；Third section polymerization temperature is
60 DEG C, polymerization time 90min；4th section of polymerization temperature is 70 DEG C, polymerization time 30min；5th section of polymerization temperature is 150 DEG C,
Polymerization time 30min；6th section of polymerization temperature is 165 DEG C, polymerization time 15min；Apply product voltage rating simultaneously, is contained
Sub-prime after leaching；
The sub-prime of step 6 is carried out group and stood, obtains semi-finished product by step 7；
Semi-finished product are carried out aging and charging to get finished product is arrived by step 8.
Select specification for 470 μ F16V, having a size of φ 6.3mm × 11mm as product, preparation method is the side of embodiment 1
Method is tested for the property product, and electrical performance data, which is shown in Table 1, CAP, indicates that capacity, DF indicate angle of loss tangent, ESR expression etc.
Series resistance is imitated, LC indicates leakage current.
Table 1
Comparative example 1
Select specification for 470 μ F16V, having a size of φ 6.3mm × 11mm as product, preparation method is existing method, is obtained
The product arrived is the product of comparative example 1.
The product of comparative example 1 is tested for the property, test result is shown in Table 2.
Table 2
As can be seen from Table 1 and Table 2, product of the product of embodiment 1 relative to comparative example 1, capacity extraction rate is higher,
Leakage current it is lower and leak electricity data consistency more preferably.
Embodiment 2
A kind of solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate, the specific steps are as follows:
Positive paillon, negative paillon and barrier paper are cut into required width by step 1；
Positive guide pin and negative guide pin are distinguished nail joint on positive paillon and negative paillon using nailing machine, after nail joint by step 2
Paillon and release paper be coiled into sub-prime；
Sub-prime is welded on stainless steel iron bar by step 3, and is carried out dozen short circuit processing and (played short circuit: being sub-prime nail clove hitch
After beam, the biggish DC voltage of sub-prime momentary connection generally uses 3 times of paillon pressure voltage of DC voltage, if it is larger to have an impact
Burr, which will appear spark, to choose the sub-prime of later period easily short circuit)；
The sub-prime of step 3 is carried out chemical conversion treatment and drying, the sub-prime after being dried by step 4；
Step 5, the element by the element soaking pretreating reagent 5min after drying, in 125 DEG C of drying 60min, after being dried
Son；
Step 6, by the element soaking after drying in high molecular dispersion liquid, the impregnation time is 13min, is impregnated with vacuum degree
For -90kpa, after being impregnated with dispersion liquid, 135 DEG C of oven drying 60min is put into, while applying product voltage rating, be repeated twice；
The sub-prime of step 6 is assembled rubber plug and aluminum hull carries out group and stands by step 7；
Semi-finished product capacitor aging of the group after vertical is charged, obtains finished product by step 8.
Select specification for 560 μ F25V, having a size of φ 10mm × 12mm as product, preparation method is the side of embodiment 2
Method is tested for the property product, and electrical performance data is shown in Table 3.
Table 3
Comparative example 2
Select specification for 560 μ F25V, having a size of φ 10mm × 12mm as product, preparation method is existing method, is obtained
Product be comparative example 2 product.
The product of comparative example 2 is tested for the property, test result is shown in Table 4.
Table 4
| Serial number | CAP(μF/120Hz) | DF (%) | ESR(mΩ) | LC(μA) |
| 1 | 548.52 | 2.2951 | 7.6074 | 5.338 |
| 2 | 550.77 | 2.2726 | 7.5018 | 5.317 |
| 3 | 550.47 | 2.3069 | 7.6211 | 4.513 |
| 4 | 555.39 | 2.258 | 7.6406 | 4.198 |
| 5 | 548.14 | 2.23 | 7.7278 | 20.172 |
| 6 | 548.34 | 2.3018 | 7.634 | 15.306 |
| 7 | 549.67 | 2.3015 | 7.7572 | 11.763 |
| 8 | 551.7 | 2.3065 | 7.6169 | 10.814 |
| 9 | 548.71 | 2.2778 | 7.3001 | 8.681 |
| 10 | 552.69 | 2.2562 | 7.6312 | 7.829 |
As can be seen that product of the product relative to comparative example 2 of embodiment 2 from table 3 and table 4, capacity extraction rate is higher,
Leakage current it is lower and leak electricity data consistency more preferably.
In conclusion solid-state aluminum electrolytic capacitor prepared by method of the invention has capacity extraction rate height and leakage current more
Low feature.
Method of the invention essentially consists in after being impregnated with monomer and oxidant or being only impregnated with high molecular dispersion liquid, gathers
DC voltage is applied to sub-prime while closing dry, then organizes vertical, aging formation product.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate, which is characterized in that specific step is as follows:
Positive paillon, negative paillon and barrier paper are cut into required width by step 1；
Step 2, by positive guide pin and the difference nail joint of negative guide pin on positive paillon and negative paillon, by the paillon and barrier paper after nail joint
It is wound into sub-prime；
Sub-prime is welded on stainless steel iron bar by step 3, and carries out playing short circuit processing；
The sub-prime of step 3 is carried out chemical conversion treatment and drying, the sub-prime after being dried by step 4；
Step 5 by the element soaking pretreating reagent after drying and is dried, the sub-prime after being dried；
Step 6, carries out impregnation monomer and oxidant for the sub-prime after drying or is only impregnated with high molecular dispersion liquid, and monomer is
3,4 ethylenedioxythiophene solution, oxidant are at least one of p-methyl benzenesulfonic acid iron or p-methyl benzenesulfonic acid, macromolecule dispersion
Liquid is poly- 3,4 ethylenedioxythiophene solution, the sub-prime after being impregnated with；
Sub-prime after impregnation is applied the direct current of capacitor product voltage rating size by step 7 while polymerizeing dry
Pressure；
The sub-prime of step 7 is carried out group and stood, obtains semi-finished product by step 8；
Semi-finished product are carried out aging and charging to get finished product is arrived by step 9.
2. the solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate according to claim 1, which is characterized in that institute
Stating in step 2 uses nailing machine by guide pin nail joint.
3. the solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate according to claim 1, which is characterized in that institute
It states welding manner in step 3 and uses spot welding, DC voltage is 2-3 times of paillon pressure voltage when playing short circuit processing.
4. the solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate according to claim 1, which is characterized in that institute
State in step 5 be impregnated with pretreating reagent time be 5-10min, drying time 60min-120min, drying temperature be 50 DEG C-
140℃。
5. the solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate according to claim 1, which is characterized in that institute
It states and is impregnated with the time of monomer in step 6 as 1-5min, the time for being impregnated with oxidant is 1-5min, is needed after being impregnated with monomer in temperature
Degree is 20-40min dry in 40-55 DEG C of drying box.
6. the solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate according to claim 1 or 3, feature exist
In needing in temperature to be dry 60- in 120-200 DEG C of drying box after being impregnated with high molecular dispersion liquid in the step 6
120min。
7. the solid-state aluminum electrolytic capacitor preparation process of high capacity extraction rate, feature exist according to claim 1 or 5
In the sub-prime after being impregnated with monomer and oxidant in the step 7 uses stage feeding polymerization technique.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110544587A (en) * | 2019-08-08 | 2019-12-06 | 益阳艾华富贤电子有限公司 | Low-cost solid-state aluminum electrolytic capacitor and preparation method thereof |
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| US20030008531A1 (en) * | 2001-07-05 | 2003-01-09 | Shoei Co., Ltd. | Method of manufacturing an aluminum solid electrolyte capacitor |
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Application publication date: 20190510 |