CN110993353A - Winding method of electrolytic capacitor core cladding - Google Patents

Winding method of electrolytic capacitor core cladding Download PDF

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Publication number
CN110993353A
CN110993353A CN202010010542.2A CN202010010542A CN110993353A CN 110993353 A CN110993353 A CN 110993353A CN 202010010542 A CN202010010542 A CN 202010010542A CN 110993353 A CN110993353 A CN 110993353A
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China
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electrolyte
winding
electrode foil
core
core package
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CN202010010542.2A
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欧阳忠东
刘毅然
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Shenzhen Xingchuangjia Technology Co Ltd
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Shenzhen Xingchuangjia Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/145Liquid electrolytic capacitors
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01GCAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004Details
    • H01G9/14Structural combinations or circuits for modifying, or compensating for, electric characteristics of electrolytic capacitors

Abstract

The invention discloses a winding method of an electrolytic capacitor core package, which comprises the following steps: and winding the electrode foils with the intervening isolation paper to form a core package, wherein the surface of the electrode foils and/or the isolation paper is wound with electrolyte, so that the electrode foils and the isolation paper and the electrolyte are contained in the core package obtained by winding. According to the invention, the surface of the electrode foil and/or the surface of the isolation paper are wound with the electrolyte, so that the electrode foil, the isolation paper and the electrolyte contained between the electrode foil and the isolation paper in the core package obtained by winding are obtained, namely the electrolyte is soaked and adsorbed in the core package, for the subsequent impregnation process, as the electrolyte is soaked and adsorbed in the core package, most of the subsequent impregnation time is used for soaking the end part of the core package, and the impregnation time of the core package is greatly shortened.

Description

Winding method of electrolytic capacitor core cladding
Technical Field
The invention relates to the technical field of capacitor production, in particular to a winding method of an electrolytic capacitor core cladding.
Background
In the production of the traditional aluminum electrolytic capacitor, the anode foil, the cathode foil and the separator paper are generally transmitted and wound by a winding machine and then cut into individual core packages, and the core packages are impregnated after the winding is finished, wherein the impregnation method generally adopts a disordered vacuum impregnation method, namely, the core packages are placed into an impregnation cylinder in a disordered manner and then are impregnated for 10 to 20 hours in a vacuum state, so as to ensure the impregnation quality. But has the following disadvantages: the impregnation time is long, generally 5 to 20 hours, and the conventional impregnation time is as high as 15 to 20 hours for a product with a large core package diameter; secondly, the impregnation is insufficient, so that the capacity of the capacitor is reduced, and the loss angle is increased; thirdly, the lead wires on the core bag are easy to bend due to the disordered core bag.
In order to overcome the problems, an improved impregnation method is also provided in the industry, for example, Chinese patent publication No. CN101916665A (published 2010-12-15) discloses an impregnation method of an aluminum electrolytic capacitor core with short impregnation time, which specifically comprises the following steps of orderly placing the core to be impregnated into an impregnation cylinder ⑴, vacuumizing the impregnation cylinder ⑵ until the vacuum degree is-0.05 MPa to-0.15 MPa, maintaining the pressure for 10 minutes to 15 minutes, opening a communication valve, pumping electrolyte from a liquid storage tank to the impregnation cylinder, closing the communication valve, vacuumizing the impregnation cylinder ⑶ until the vacuum degree is-0.05 MPa to-0.15 MPa, impregnating the core for 0.5 hour to 20 hours, and ⑷ drying the impregnated core.
Although the improved impregnation method shortens the impregnation time to a certain extent and improves the production efficiency, the following defects still exist:
first, the time that soaks of core package is still longer, the core package of small dimension product soaks the time and generally is more than 3 hours, the core package of big specification product soaks the time more than 10 hours at least, longer soak the time and make whole activity time elongate, and because it is inside to get into the core package from the outside to soak electrolyte, thereby make the core package both ends soak easily, and the core package is close to the intermediate part more difficult to soak completely, it has big piece dry spot to discover the intermediate part of the core package that does not soak completely in the experiment easily, it is also most time-consuming to soak the intermediate part of core package completely, most of the time in soaking often is used for soaking the intermediate part of core package, operation cycle and operating cost have been improved by a wide margin, production efficiency is reduced.
Secondly, the impregnation effect of the whole batch of core packages is generally consistent, the core packages are wound by aluminum foils and isolation paper, the tightness of each core package is different, the viscosity of different positions in electrolyte is different, under the condition of the same impregnation time, the interiors of some core packages in the whole batch of core packages are already soaked, the interiors of some core packages are just soaked, and the interiors of some core packages have un-soaked parts, so that the impregnation degree of each core package in the whole batch is different, and the consistency of the finished capacitor is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a winding method of an electrolytic capacitor core package, which enables the surfaces of electrode foils and/or barrier paper to be wound with electrolyte, so that the electrode foils, the barrier paper and the electrolyte between the electrode foils and the barrier paper in the core package obtained by winding are enabled to be contained, namely the core package is soaked and adsorbed with the electrolyte firstly, for the subsequent impregnation process, as the core package is soaked and adsorbed with the electrolyte, the subsequent impregnation time is used for soaking most of the end part of the core package, thus the impregnation time of the core package is greatly reduced, and for the core package with the common size, the impregnation time can be shortened to several minutes; and because the electrolyte is injected before winding, the injection amount of the electrolyte is easier to control, so that the injection amount of the electrolyte in each core package tends to be consistent, the situation that the interiors of some core packages are soaked in the whole batch of core packages, the interiors of some core packages are just soaked, and the interiors of some core packages have un-soaked parts is avoided, the impregnation degree of each core package is almost consistent, and the consistency of the capacitors in the same batch is greatly improved.
The technical problem to be solved by the invention is realized by the following technical scheme:
a method of winding an electrolytic capacitor core package comprising the steps of: and winding the electrode foils with the intervening isolation paper to form a core package, wherein the surface of the electrode foils and/or the isolation paper is wound with electrolyte, so that the electrode foils and the isolation paper and the electrolyte are contained in the core package obtained by winding.
As an improvement of the winding method of the electrolytic capacitor core package provided by the invention, the winding of the surface of the electrode foil and/or the separator paper with the electrolyte is realized by an electrolyte injection step of injecting the electrolyte onto the surface of the electrode foil and/or the separator paper before the electrode foil and the separator paper are wound.
As an improvement of the winding method of the electrolytic capacitor core package provided by the invention, the winding of the surface of the electrode foil and/or the separator paper with the electrolyte is realized by an electrolyte injection step of injecting the electrolyte on the surface of the electrode foil and/or the separator paper before the electrode foil and the separator paper are laminated together.
As an improvement of the winding method of the electrolytic capacitor core package provided by the invention, the winding of the surface of the electrode foil and/or the separator paper with the electrolyte is realized by an electrolyte injection step of injecting the electrolyte on the surface of the electrode foil and/or the separator paper in the area to be intersected.
As an improvement of the winding method of the electrolytic capacitor core package, the surface of the electrode foil and/or the surface of the isolation paper are wound with the electrolyte by an electrolyte injection step of injecting the electrolyte on the surface of the electrode foil and/or the isolation paper between the cutting device and the winding core of the winding device.
As an improvement of the winding method of the electrolytic capacitor core package provided by the invention, the surface of the electrode foil and/or the separator paper is wound with the electrolyte by an electrolyte injection step of injecting the electrolyte on the surface of the electrode foil and/or the separator paper which is positioned between a winding core and a support roller closest to the winding core of the winding device.
As an improvement of the winding method of the electrolytic capacitor core package provided by the invention, the winding of the electrode foil surface with the electrolyte comprises winding at least the positive electrode foil surface with the electrolyte.
As an improvement of the winding method of the electrolytic capacitor core package provided by the invention, the winding of the surface of the electrode foil and/or the separator paper with the electrolyte refers to the winding of the surface of the electrode foil and/or the separator paper with the electrolyte in the middle.
As an improvement of the winding method of the electrolytic capacitor core package provided by the present invention, the electrolyte injection step is performed simultaneously or intermittently with the winding step.
As an improvement of the winding method of the core package of the electrolytic capacitor, the electrode foil and the separation paper are subjected to heating treatment before the electrolyte is injected.
The invention has the following beneficial effects:
(1) according to the invention, the surface of the electrode foil and/or the surface of the isolation paper are wound with the electrolyte, so that the electrode foil, the isolation paper and the electrolyte contained between the electrode foil and the isolation paper in the core package obtained by winding are obtained, namely the electrolyte is soaked and adsorbed in the core package, for the subsequent impregnation process, as the electrolyte is soaked and adsorbed in the core package, most of the subsequent impregnation time is used for soaking the end part of the core package, and the impregnation time of the core package is greatly shortened.
(2) Because the electrolyte is injected before winding, the injection amount of the electrolyte is easier to control, so that the injection amount of the electrolyte in each core package tends to be consistent, the situation that the interiors of some core packages are wetted in the whole batch of core packages, the interiors of some core packages are wetted just and the interiors of some core packages have unwetted parts is avoided, the impregnation degree of each core package is almost consistent, and the consistency of the capacitors in the same batch is greatly improved.
(3) By adopting the method provided by the invention, the subsequent impregnation and permeation time of a small-size core package (such as a core package with a diameter of 8-12 mm) can be shortened to 30 s-2 min, and the impregnation time can be further shortened by combining a pressurization mode; the soaking time of a large-size core package (such as a core package with a diameter of 16-18 mm) can be shortened to 2-5 minutes, and the soaking time can be further shortened by combining a pressurizing mode. Compared with the existing impregnation time which is as long as 3 hours to 10 hours, even as long as 15 hours to 20 hours, the subsequent impregnation time of the invention is extremely short, most of the core packages can be completely impregnated by the extremely short impregnation time, the whole impregnation operation time is shortened due to the short impregnation time, the operation period and the operation cost are greatly reduced, and the production efficiency is obviously improved.
Drawings
FIG. 1 is a schematic structural view of comparative examples and examples.
Detailed Description
In order to solve the technical problems described in the above background art, the present invention provides a winding method of an electrolytic capacitor core package, comprising the steps of: and winding the electrode foils with the intervening isolation paper to form a core package, wherein the surface of the electrode foils and/or the isolation paper is wound with electrolyte, so that the electrode foils and the isolation paper and the electrolyte are contained in the core package obtained by winding. The electrode foils on two sides of the isolation paper in the core package are opposite in polarity.
Wherein, the winding of the electrode foil and/or the surface of the isolation paper with the electrolyte is realized by an electrolyte injection step. In particular, the amount of the solvent to be used,
an electrolyte injection step of injecting an electrolyte onto the surface of the electrode foil and/or the separator paper before the electrode foil and the separator paper are wound; injecting electrolyte into the surface of the electrode foil and/or the isolation paper before the electrode foil and the isolation paper are laminated together; electrolyte can also be injected into the surfaces of the electrode foils and/or the isolation paper positioned in the areas to be intersected; electrolyte can also be injected into the surface of the electrode foil and/or the surface of the isolation paper between the cutting device and the winding core of the winding device; alternatively, the electrolyte may be injected onto the surface of the electrode foil and/or separator paper located between the winding core of the winding device and the support roller closest to the winding core.
The above-described electrolyte injection step is only a preferred embodiment, and any embodiment may be used in which the electrode foil and/or the separator is wound with the electrolyte on the surface thereof. The separation paper is used for separating electrode foils with different polarities and paper for adsorbing electrolyte, and is also called as electrolytic paper and liner paper.
It should be noted that the electrolyte may be injected during the transportation of the electrode foil and the separator, before the electrode foil and the separator are brought into contact with each other near the winding device without being laminated, or simultaneously. Whether before electrode foil and barrier paper intersection range upon range of, or to being located the district of waiting to intersect, or to being located between the book core of cutting device and take-up device, still to the surface injection electrolyte of electrode foil and/or barrier paper that is located between the book core of take-up device and the backing roll that is closest to roll core, the main purpose is just overlapping together and then coiling at the back electrode foil that pours into electrolyte into and barrier paper, thereby guarantee as far as possible that electrolyte gets into the winding step completely, avoid the electrolyte on electrode foil and barrier paper volatilizing and splashing in the feed transmission process, also avoid extravagant electrolyte and prevent pollution equipment, can also avoid electrolyte exposure time overlength and take place the reaction with environmental substance.
Preferably, but not limited to, the surface of the electrode foil and/or the release paper is wound with the electrolyte, and the surface of the electrode foil and/or the release paper is wound with the electrolyte in the middle. The part which is most difficult to be completely soaked in the subsequent impregnation process can be soaked in advance, so that the time of the subsequent impregnation process is shortened. And electrolyte is injected into the middle part of the surface of the electrode foil and/or the isolation paper, and the two ends of the electrode foil and/or the isolation paper are dried, so that the electrolyte at the two ends of the core package is prevented from polluting equipment, and the electrolyte is prevented from reacting with environmental substances due to overlong exposure time.
Further, the electrolyte injection step is performed simultaneously with the winding step or at intervals, wherein the simultaneous injection is understood to be injection while winding, and the interval injection is understood to be the cycle of injection and winding. Because the electrolyte injection is specific to the surface of the electrode foil and/or the isolation paper before being wound, the electrode foil and the isolation paper are drawn to move relative to the electrolyte injection opening while being wound, preferably, the mode of injection while winding is adopted, and the mode of relative interval circulation is adopted, so that the working efficiency can be improved, and the problem of volatilization or chemical reaction of the electrolyte caused by the fact that the electrolyte is injected in advance is avoided.
Further, the electrode foil and the separator paper are subjected to a heat treatment before the electrolyte is injected. The electrode foil and the separator may be directly heated by adding a heating device to the winding machine, or may be heated when the electrode foil and the separator are wound materials. The heating treatment mainly aims to perform drying and dewatering treatment on the electrode foil and the release paper so as to reduce the moisture on the surfaces of the electrode foil and the release paper.
Generally speaking, the effect of injecting the electrolyte into the surface of the electrode foil is better, and the electrolyte is not injected into the surface of the isolation paper, because the isolation paper is easy to break in the winding process after being injected with the electrolyte, the winding fails, but the electrolyte can be injected into the isolation paper for the isolation paper which has stronger toughness and does not break in a wet state. In this embodiment, it is preferable that the electrolyte is injected into the surface of the electrode foil (the electrode foil includes a positive electrode foil and a negative electrode foil, hereinafter referred to as an anode foil and a cathode foil).
In general, when the core pack is impregnated with the electrolyte, the cathode foil and the separator paper in the core pack are more likely to permeate than the anode foil, that is, the reason why the impregnation time is too long is that the anode foil is too long to permeate, and in order to solve this problem, the electrolyte may be injected into the surface of the anode foil and/or the surface of the separator paper in contact with the anode foil so that the anode foil in the core pack preferentially adsorbs the electrolyte. Of course, it is preferable to inject the electrolyte on the surface of the electrode foil (anode foil and/or cathode foil) or the separator paper, and more preferable to inject the electrolyte on the surface of the electrode foil and the separator paper, so that the core package absorbs the electrolyte through better and more uniform wetting.
The winding method mainly comprises the steps of winding the electrode foil and the isolation paper through a winding machine, and injecting electrolyte into the electrode foil and/or the isolation paper through an injection mechanism. The position of the injection mechanism can be adjusted according to the above injection steps.
Preferably but not limitatively, annotate liquid mechanism and set up between cutting device and book core for electrolyte pours into in cutting device's rear end, avoids being stained with electrolyte when cutting device cuts, prevents that electrolyte from corroding cutting device.
Furthermore, the cutting device comprises a movable cutter and a static cutter which are oppositely arranged, and the liquid injection mechanism can be fixed at the rear end of the static cutter. A certain gap is reserved between the static cutter station and the winding completion station on the traditional winding machine, and a liquid injection mechanism can be arranged at the gap, so that the structural arrangement of the winding machine does not need to be changed, and the redesign and redevelopment cost is saved.
Referring to fig. 1, the present invention will be described in detail with reference to the following examples, which are only preferred embodiments of the present invention and are not intended to limit the present invention.
Example 1:
the anode foil 100, the cathode foil 200 and the isolation paper 300 are respectively placed into a rotating wheel 1 of a winding machine to be transmitted and are transmitted to a winding core 2 together to be wound, a plurality of rollers 3 used for providing tension are arranged between the rotating wheel 1 and the winding core 2, a cutting device 4 is further arranged at the rear end of the roller 3 closest to the winding core 2, a liquid injection mechanism 5 is fixed between the cutting device 4 and the winding core 2, electrolyte is injected into the surface of the anode foil 100 through the liquid injection mechanism 5, and the anode foil 100, the cathode foil 200 and the isolation paper 300 are cut into an independent core package after being wound.
Comparative example 1:
the anode foil 100, the cathode foil 200 and the separator 300 are respectively placed into a rotating wheel 1 of a winding machine to be transmitted and are transmitted to a winding core 2 together for winding, a plurality of rollers 3 for providing tension are arranged between the rotating wheel 1 and the winding core 2, a cutting device 4 is further arranged at the rear end of the roller 3 closest to the winding core 2, and the anode foil 100, the cathode foil 200 and the separator 300 are cut into a single core package after being wound.
Example 2:
the difference is that the anode foil 100, the cathode foil 200 and the separator paper 300 are heat-treated before the anode foil 100 is injected with the electrolyte according to the winding method of example 1.
Example 3:
based on the winding method in example 1, except that the electrolyte is injected into the middle of the front surface of the anode foil 100 and both ends are kept dry.
The various examples are compared under identical conditions:
the core packages prepared in example 1, comparative example 1, example 2 and example 3 were placed in an impregnation device for vacuumization and impregnation, the impregnation time was controlled to be 3 minutes, and the core packages of the respective examples were taken out and expanded to compare the impregnation effect.
Comparative example 1 test results:
the core pack of comparative example 1 had partially wet ends, but had large dry spots in the middle of the core pack.
Example 1 test results and conclusions:
in embodiment 1, both ends of the core pack are soaked, and the electrolyte is injected into the middle part of the core pack in the winding machine and is also soaked, so that the core pack is completely soaked, and the impregnation effect is completely soaked.
In this embodiment, before entering the core 2, the electrolyte is injected onto the surface of the anode foil 100, so that the electrolyte stays on the front surface of the anode foil 100 in a droplet shape (not limited to a droplet shape), at this time, the anode foil 100, the cathode foil 200, and the release paper 300 are continuously wound, and the droplet electrolyte is rolled into a planar state, so that the electrolyte can be adsorbed on the front surface of the anode foil 100 and soaked on the wound release paper 300, and further the inside of the core pack is soaked first and then impregnated after being wound into the core pack, because the inside of the core pack is soaked, most of the subsequent impregnation time is used for soaking the end of the core pack, thereby greatly reducing the impregnation time of the core pack, and the impregnation time can be shortened to several minutes for core packs of general sizes; and because just inject into electrolyte before getting into core 2, make the injection volume of electrolyte obtain control more easily, thereby make the injection volume of the inside electrolyte of every core package tend to unanimously, avoided appearing some core packages in the whole batch of core packages inside having soaked, some core packages inside just soak, some core packages inside has had the condition of not soaking the part, and then make the degree of soaking of every core package almost reach unanimously, the uniformity of finished product capacitor will increase substantially.
Example 2 test results and conclusions:
the incoming material water content is not controlled in embodiment 1, and the incoming material is not suitable for being heated and dried after electrolyte is injected, so that more residual moisture is left in the core bag, and some core bags cannot reach the moisture control standard. In the embodiment 2, the two ends of the core bag are soaked, and the electrolyte is injected into the middle part of the core bag at the winding machine and is also soaked, so that the core bag is completely soaked; and because the anode foil 100, the cathode foil 200 and the release paper 300 are heated and dried before the electrolyte is injected, most of moisture in the anode foil 100, the cathode foil 200 and the release paper 300 is removed, the situation that the drying is carried out after the electrolyte is injected is avoided, the electrolyte is prevented from volatilizing, the residual moisture reaches the expected standard, and the performance of the core package is not influenced.
Example 3 test results and conclusions:
in example 1, the injection position of the electrolyte is not controlled, so that the electrolyte may wet the two ends during the winding process, and the electrolyte at the two ends may contaminate the winding machine. In embodiment 3, the two ends of the core pack are wetted, and the electrolyte is injected into the winding machine at the middle part of the core pack and is also wetted, so that the core pack is completely wetted, and the middle part of the core pack is the most difficult to be completely wetted, so that the electrolyte is injected into the middle of the front surface of the anode foil 100, and the part which is most difficult to be completely wetted can be wetted in advance, thereby shortening the time of the subsequent impregnation process; when electrolyte is injected, the two ends of the core bag are kept dry, so that the electrolyte at the two ends of the core bag is prevented from polluting equipment, the electrolyte is prevented from reacting with environmental substances due to too long exposure time, and the electrolyte is prevented from deteriorating.
The invention also provides an electrolytic capacitor winding machine, which comprises a transmission mechanism, a winding mechanism and a liquid injection mechanism, wherein the transmission mechanism is used for transmitting the anode foil, the cathode foil and the electrolytic paper; the winding mechanism is connected with the conveying mechanism and is used for winding the anode foil, the cathode foil and the electrolytic paper sent by the conveying mechanism; the liquid injection mechanism is arranged on a transmission path of the transmission mechanism and is used for injecting electrolyte into the surface of at least one of the anode foil, the cathode foil and the electrolytic paper.
Further, the liquid injection mechanism is arranged in the middle of the transmission path of the transmission mechanism. The electrolyte injection mechanism may inject the electrolyte into the middle of the surface of at least one of the anode foil, the cathode foil, and the electrolytic paper.
Further, annotate the liquid mechanism and locate between transport mechanism and the winding mechanism. So that the electrolyte injecting mechanism can inject the electrolyte into the surface of at least one of the anode foil, the cathode foil and the electrolytic paper at the position closest to the winding mechanism and before the anode foil, the cathode foil and the electrolytic paper are in overlapped contact.
Further, still including locating the cutting device between transmission device and the winding mechanism, cutting device is including the relative movable cutter and the quiet cutter that set up, annotate the liquid mechanism and locate the rear end of quiet cutter.
Further, the liquid injection mechanism is a nozzle.
Further, the conveying mechanism comprises an anode foil conveying mechanism, a cathode foil conveying mechanism and an electrolytic paper conveying mechanism.
Further, the liquid injection mechanism is arranged on at least one transmission path of the anode foil transmission mechanism, the cathode foil transmission mechanism and the electrolytic paper transmission mechanism. The electrolyte can be injected into the anode foil, the cathode foil and the electrolytic paper simultaneously or only into one surface or only into two surfaces according to actual needs.
Further, the liquid injection mechanism is arranged on a transmission path of the anode foil transmission mechanism.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.

Claims (10)

1. A winding method of an electrolytic capacitor core package is characterized by comprising the following steps: and winding the electrode foils with the intervening isolation paper to form a core package, wherein the surface of the electrode foils and/or the isolation paper is wound with electrolyte, so that the electrode foils and the isolation paper and the electrolyte are contained in the core package obtained by winding.
2. The winding method of an electrolytic capacitor core package according to claim 1, wherein the winding of the surface of the electrode foil and/or the separator paper with the electrolyte is performed by an electrolyte injection step of injecting the electrolyte onto the surface of the electrode foil and/or the separator paper before the electrode foil and the separator paper are wound.
3. The winding method of an electrolytic capacitor core package according to claim 1, wherein the winding of the surface of the electrode foil and/or the separator paper with the electrolyte is carried out by an electrolyte injection step of injecting the electrolyte onto the surface of the electrode foil and/or the separator paper before the electrode foil and the separator paper are laminated together.
4. The winding method of an electrolytic capacitor core package according to claim 1, wherein the winding of the surface of the electrode foil and/or the separator paper with the electrolyte is performed by an electrolyte injection step of injecting the electrolyte on the surface of the electrode foil and/or the separator paper located at the region to be joined.
5. The winding method of an electrolytic capacitor core package according to claim 1, wherein the winding of the surface of the electrode foil and/or the separator with the electrolyte is performed by an electrolyte injection step of injecting the electrolyte onto the surface of the electrode foil and/or the separator located between the cutting means and the winding core of the winding means.
6. The winding method of an electrolytic capacitor core package according to claim 1, wherein the winding of the surface of the electrode foil and/or the separator paper with the electrolyte is carried out by an electrolyte injection step of injecting the electrolyte onto the surface of the electrode foil and/or the separator paper located between the winding core of the winding device and the support roller closest to the winding core.
7. The winding method of the electrolytic capacitor core package according to claim 1, wherein the winding of the surface of the electrode foil and/or the separator paper with the electrolyte means that the middle part of the surface of the electrode foil and/or the separator paper is wound with the electrolyte.
8. The method of winding an electrolytic capacitor core package of claim 1, wherein winding the electrode foil surface with electrolyte comprises winding at least a positive electrode foil surface with electrolyte.
9. The method of winding an electrolytic capacitor core package of claim 1, wherein the electrolyte injection step is performed simultaneously or at intervals with the winding step.
10. The winding method of an electrolytic capacitor core package according to claim 1, wherein the electrode foil and the separator paper are further subjected to a heating treatment before the electrolyte is injected.
CN202010010542.2A 2020-01-06 2020-01-06 Winding method of electrolytic capacitor core cladding Pending CN110993353A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111540624A (en) * 2020-05-21 2020-08-14 深圳新益昌科技股份有限公司 Impregnation technology for aluminium electrolytic capacitor

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Application publication date: 20200410