KR101416813B1 - Electrolyte impregnation system, manufacturing system and manufacturing method of super capacitor thereof - Google Patents

Electrolyte impregnation system, manufacturing system and manufacturing method of super capacitor thereof Download PDF

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KR101416813B1
KR101416813B1 KR1020120158148A KR20120158148A KR101416813B1 KR 101416813 B1 KR101416813 B1 KR 101416813B1 KR 1020120158148 A KR1020120158148 A KR 1020120158148A KR 20120158148 A KR20120158148 A KR 20120158148A KR 101416813 B1 KR101416813 B1 KR 101416813B1
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electrode sheet
negative electrode
positive electrode
roll
bat
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KR1020120158148A
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Korean (ko)
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KR20140088638A (en
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한상진
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비나텍주식회사
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

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  • Engineering & Computer Science (AREA)
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  • Manufacturing & Machinery (AREA)
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Abstract

The present invention relates to an electrolyte solution impregnation device, and more particularly, to an electrolyte solution impregnation device that includes an electrode separator in which a roll-shaped electrode sheet is wound, and a bat containing an electrolyte solution and impregnating an electrolyte solution into the electrode sheet, Since the positive electrode sheet and the negative electrode sheet are impregnated with the electrolytic solution and the capacitor element including the positive electrode sheet and the negative electrode sheet impregnated with the electrolyte and the separator is wound, the electrolytic solution can be uniformly distributed in the capacitor element.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electrolyte impregnation apparatus, a supercapacitor manufacturing system,

The present invention relates to a supercapacitor, and more particularly, to an electrolytic solution impregnating apparatus capable of uniformly distributing an electrolytic solution between electrodes when impregnating an electrode with an electrolytic solution after an electrode is formed in manufacturing a supercapacitor, And a method of manufacturing the same.

In the information age, high-value-added industries that collect and utilize diverse and useful information in real time through various information and communication devices are leading. In order to secure the reliability of such systems, it is recognized that supply of stable energy is an important factor.

As part of ensuring a stable energy, batteries, the most common energy storage devices, are widely used because they can store a considerable amount of energy in relatively small volumes and weights and can output moderate power in many applications. However, there is a common problem that the battery has low storage characteristics and cycle life regardless of the type. This is due to the natural deterioration of the chemical contained in the battery or deterioration due to use. These battery disadvantages are natural phenomena, so alternative alternatives have been proposed and are not available.

On the other hand, a super capacitor improved in capacity by a high capacity is an energy storage device using an electric double layer formed between an electrode and an electrolyte, unlike a battery using a chemical reaction. These supercapacitors utilize charge phenomena by simple ion transfer or surface chemical reaction to the electrode and electrolyte interface. As a result, rapid charging and discharging is possible, and due to its high charge / discharge efficiency and semi-permanent cycle life characteristics, it is attracting attention as a next generation energy storage device which can be used as a secondary battery or a substitute for a battery.

The basic structure of a supercapacitor consists of an electrode, an electrolyte, a current collector, and a separator. A voltage of several volts is applied to both ends of the unit cell electrode, A series of electrochemical mechanisms that move and adsorb onto the surface of the electrode is the operating principle.

Various materials have been used in the fabrication of electrodes for real super capacitors. The most basic material of the electrode is a carbon electrode material (active material), a conductive material, and a polymer binder. These materials are made into a slurry and applied to a current collector to produce an electrode. Here, the binder plays an important role in providing bonding between the active materials and between the collector and the electrode materials.

One type of supercapacitor, a wound type super capacitor, is fabricated by laminating an anode and a cathode on both sides of a separator and a separator and spirally winding it. In the course of manufacturing such a winding type super capacitor, a process of distributing an electrolyte between electrodes, that is, a process of impregnating an electrolyte is performed.

Conventionally, in the process of distributing the electrolyte to the capacitor element, an electrolyte is supplied to the capacitor element in which the positive electrode and the negative electrode are wrapped around the separator as a reference, thereby impregnating the electrolyte into the capacitor element. However, such a process has a problem that the electrolytic solution is not uniformly distributed throughout the capacitor device.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above problems and to solve the above problems, and an object of the present invention is to provide a positive electrode sheet and a negative electrode sheet which are impregnated with an electrolyte solution before a capacitor element comprising a positive electrode sheet, A supercapacitor manufacturing system using the same, and a manufacturing method thereof.

In order to achieve the above object, the present invention provides an electrode sheet comprising an electrode sheet having a roll-shaped electrode sheet wound thereon, and an electrode sheet which contains the electrolyte solution and is impregnated with the electrolyte solution, And a bath for making the electrolyte solution impregnated with the electrolyte solution.

In the electrolytic solution impregnating apparatus of the present invention, the bat includes a first bat and a second bat that accommodate the electrolytic solution, and the electrode sitrol includes a positive electrode sheet and a roll negative electrode sheet Wherein the anode sheet is advanced by a roll-to-roll process and is introduced into the first bat to impregnate the electrolyte, and the cathode sheet is advanced by a roll-to-roll process, 2 < / RTI > batt to impregnate the electrolyte solution.

In the electrolyte solution impregnating apparatus of the present invention, the positive electrode sheet includes a positive electrode collector and a positive electrode active material provided on both surfaces or one surface of the positive electrode collector, and the negative electrode sheet includes a negative electrode collector and both surfaces And a negative electrode active material.

In the electrolyte impregnating apparatus of the present invention, the material of the cathode current collector and the anode current collector is PC (polycarbonate).

In the electrolytic solution impregnating apparatus of the present invention, the first bat and the second bat may further include a lid provided on the upper portion so as to be openable and closable and having a draw-out hole and a draw-in hole.

In the electrolyte-impregnating apparatus of the present invention, the first bat and the second bat may further include an ultrasonic wave generating unit provided inside the first and second bats for vibrating the electrolytic solution accommodated in the first and second bats by ultrasonic waves .

The present invention relates to a positive electrode sheet comprising a positive electrode sheet wound with a rolled positive electrode sheet, a negative electrode sheet having a rolled negative electrode sheet wound thereon, A second batt that receives the electrolyte and impregnates the electrolyte solution into the negative electrode sheet which is advanced by a roll-to-roll method and is introduced into the positive electrode sheet; A negative electrode sheet impregnated with the electrolytic solution, a compression roller disposed between the positive electrode sheet and the negative electrode sheet to form a capacitor element by stacking and separating a separator for electrically insulating the positive electrode sheet and the negative electrode sheet, And a winding roll for winding the element.

A first step of impregnating a positive electrode sheet which is advanced by a roll-to-roll method in a first bat containing an electrolyte solution into the positive electrode sheet, a second impregnating step of impregnating the positive electrode sheet into the electrolyte, A second impregnating step of impregnating the negative electrode sheet into the interior of the negative electrode sheet, wherein the positive electrode sheet impregnated with the electrolyte, the negative electrode sheet impregnated with the electrolyte, and the negative electrode sheet impregnated with the electrolyte, A step of forming a capacitor element by laminating and then pressing a separator to electrically insulate the first and second capacitors, and a winding step of winding the capacitor element.

In the method of manufacturing a supercapacitor of the present invention, the case may further include a step of wrapping the outer surface of the wound capacitor element.

According to the electrolytic solution impregnating apparatus, the supercapacitor manufacturing system and the manufacturing method using the electrolytic solution impregnating apparatus, the positive electrode sheet and the negative electrode sheet are impregnated with the electrolyte solution and then the capacitor element comprising the positive electrode sheet and the negative electrode sheet impregnated with the electrolyte, Can be uniformly distributed in the capacitor element.

1 is a view illustrating an electrolyte solution impregnating apparatus according to an embodiment of the present invention.
2 is a diagram illustrating a system for manufacturing a supercapacitor according to an embodiment of the present invention.
3 and 4 are views for explaining a supercapacitor manufacturing system according to an embodiment of the present invention,
3 is a view for explaining the formation of a capacitor element by stacking a cathode sheet, a cathode sheet and a separator according to an embodiment of the present invention,
4 is a view for explaining winding of a capacitor element according to an embodiment of the present invention.
5 is a flowchart illustrating a method of manufacturing a supercapacitor according to an embodiment of the present invention.
6 is a flowchart illustrating a method of manufacturing a supercapacitor according to a second embodiment of the present invention
7 is a view for explaining the completion step according to the second embodiment of the present invention.
8 is a view showing a first bat and a second bat provided with a lid according to a third embodiment of the present invention.

In the following description, only parts necessary for understanding the embodiments of the present invention will be described, and the description of other parts will be omitted so as not to obscure the gist of the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor is not limited to the meaning of the terms in order to describe his invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely preferred embodiments of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents And variations are possible.

A supercapacitor manufactured according to the present invention is an energy storage device using an electric double layer formed between an electrode and an electrolyte, unlike a battery using a chemical reaction. That is, it is an energy storage device using simple phenomenon of ion transfer to the interface between the electrode and the electrolyte or charging phenomenon by surface chemical reaction.

Hereinafter, an electrolyte impregnation apparatus, a system for manufacturing a supercapacitor, and a manufacturing method thereof according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a view illustrating an electrolyte solution impregnating apparatus according to an embodiment of the present invention.

Referring to FIG. 1, an electrolyte solution impregnating apparatus 1 according to an embodiment of the present invention includes an electrode shield and a first bat.

A roll-to-roll method is applied to the electrolyte solution impregnating device 1, which will be described later.

The electrode sheet is wound with a rolled electrode sheet. The electrode sheet may include a positive electrode sheet 35 wound with a rolled positive electrode sheet 30 or a negative electrode sheet 45 wound with a negative electrode sheet 40 in the form of a hole.

The bat comprises a first bat (10) and a second bat (20) which receive the electrolyte (15). Further, the bat can be impregnated with the electrolytic solution 15 by the roll-to-roll process, so that the electrode sheet to be introduced into the bat can be impregnated. For example, the positive electrode sheet 30, which is one of the electrode sheets, is advanced by a roll-to-roll process and is introduced into the first bat 10 to impregnate the electrolyte 15, The electrolyte solution 15 may be impregnated into the second batt 20 by the roll-to-roll method.

As mentioned above, the first bat 10 can receive the electrolyte 15. That is, the first bat 10 has a tubular structure having an opening on one side, and can receive the electrolyte 15 through the opening.

In the embodiment of the present invention, the first bat 10 is formed in a rectangular pipe structure. The technical idea of the present invention is not limited to this, and it may have various tubular structures such as a circular pipe, a triangular pipe, a square pipe, and a square pipe.

As described above, the electrolyte 15 can be impregnated into the positive electrode sheet 30 in the first bat 10 containing the electrolyte solution 15. That is, according to the progress of the electrolyte solution impregnating apparatus 1 according to the embodiment of the present invention, the anode sheet 30 is charged into the first bat 10 containing the electrolyte 15, (15) may be impregnated on both sides or one side of the electrolyte membrane (30).

As mentioned above, the second bat 20 can receive the electrolyte 15. That is, the second bat 20 has a tubular structure having an opening on one side, and can receive the electrolyte 15 through the opening.

In the embodiment of the present invention, the second bats 20 are formed in a rectangular pipe structure. The technical idea of the present invention is not limited to this, and it may have various tubular structures such as a circular pipe, a triangular pipe, a square pipe, and a square pipe.

The electrolyte 15 can be impregnated into the negative electrode sheet 40 in the second battery 20 in which the electrolyte 15 is accommodated. That is, according to the progress of the electrolyte solution impregnating apparatus 1 according to the embodiment of the present invention, the negative electrode sheet 40 is charged into the second bat 20 containing the electrolyte 15, (15) is impregnated on both sides or one side of the electrolyte membrane (40).

The positive electrode sheet 30 and the negative electrode sheet 40 serve to store positive and negative charges, respectively, when an electric field is applied from the outside. Thus, the positive electrode sheet 30 and the negative electrode sheet 40 are electrically adsorbed and desorbed with the positive and negative ions in the electrolyte 15. That is, when an electric field is applied from the outside, positive and negative ions are adsorbed on the interface between the positive electrode sheet 30 and the negative electrode sheet 40, respectively. When the electric field is removed, the adsorbed ions are desorbed and discharged.

The positive electrode sheet 30 includes a positive electrode collector and a positive electrode material made of a slurry provided on one or both sides of the positive collector. The negative electrode sheet 30 includes a negative electrode collector and a negative electrode collector, And may include a negative electrode material made of a slurry.

The positive electrode current collector and the negative electrode current collector accumulate electrons generated by the electrochemical reaction of the active material in the supercapacitor and transfer the electrons to the external circuit. Although polycarbonate (PC) is used as the positive electrode current collector and the negative electrode current collector according to the embodiment of the present invention, the technical idea of the present invention is not limited thereto, and the positive electrode current collector and the negative electrode current collector may be made of aluminum, nickel, An alloy or a compound of titanium, copper, gold, silver, platinum or cobalt may be used, and a conductive polymer such as conductive carbon, polyaniline, polythiophene or polypropylene may be used.

The anode active material, the conductive material, and the binder are used for the anode material and the cathode material made of slurry.

Activated carbon can be used as an electrode active material. Porous carbon-based materials having high electrical conductivity, thermal conductivity, low density, suitable corrosion resistance, low coefficient of thermal expansion and high purity can be used. For example, active carbon powder (ACP), carbon nano tube (CNT), graphite, vapor grown carbon fiber (VGCF), carbon Carbon nanofibers (CNFs) and activated carbon nano-fibers (carbon nanotubes) prepared by carbonizing polymers such as carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, carbon nanotubes, Activated carbon nano fiber (ACNF), or the like may be used.

The conductive material may be carbon black, acetylene black, ketjen black, graphite, super-p, or the like as a material for imparting conductivity to the electrode .

The binder serves as a bridge for bonding the electrode active material and the conductive material, and for binding the electrode active material, the positive electrode collector, and the negative electrode collector. Examples of materials usable as the binder include carboxy methyl cellulose (CMC), polyvinylpyrrolidone (PVP), polytetrafluoroethylene (PTFE) powder or emulsion of fluorine type, and styrene butadiene rubber And styrene butadiene rubber (SBR). These materials may be used in a mixture of at least one of these materials. Carboxy methyl cellulose (CMC) plays a role in increasing the binding strength with the positive electrode collector and the negative electrode collector while maintaining the viscosity of the electrode slurry in a state similar to the paste. CMC increases the binding force but increases the embrittlement of the electrode material layer after casting the electrode slurry. This CMC can be used to obtain the binding force between the current collector and the electrode slurry. Polyvinylpyrrolidone (PVP) acts as a dispersant and helps disperse the particles forming the electrode slurry. Such polyvinylpyrrolidone can be substituted if there is other material that is low in addition and can aid dispersion. Polytetrafluoroethylene (PTFE) is emulsified in the electrode slurry, and when it melts above the melting point, the polymer encapsulates the particles like a spider web. Such polytetrafluoroethylene can stably increase the bonding force between particles. Rubber-based styrene butadiene rubber (SBR) serves to protect the surface by coating the surface of the particles. In addition, the binder may further include polyvinylidene fluoride, carboxymethyl cellulose, hydropropyl methylcellulose, polyvinyl alcohol, and the like.

The electrolyte 15 can make the charge generated in the positive electrode sheet 30 and the negative electrode sheet 40 move smoothly and can be composed of a salt of a cation and an anion as a liquid solvent.

The electrolytic solution 15 may be a non-aqueous solvent, and may be selected from cyclic carbonates, linear carbonates, lactones, ethers, esters, ketones, and / or water.

Examples of the cyclic carbonates include ethylene carbonate (EC), propylene carbonate (PC), and butylene carbonate (BC). Examples of the linear carbonate include diethyl carbonate (DEC), dimethyl carbonate (DMC), dipropyl carbonate ), Ethyl methyl carbonate (EMC), and methyl propyl carbonate (MPC). Examples of the lactone are gamma butyrolactone (GBL), and examples of the ether include dibutyl ether, tetrahydrofuran, 2-methyltetrahydrofuran, 1,4-dioxane, 1,2-dimethoxyethane and the like . Examples of the esters include methyl acetate, ethyl acetate, methyl propionate, methyl pivalate, and the like. The ketones include, but are not limited to, polymethyl vinyl ketone. These non-aqueous solvents may be used alone or in combination of two or more.

The electrolytic solution 15 contains an alkali metal cation such as Li + , Na + , K + , or an ion composed of a combination of these, and is made of PF 6 - , BF 4 - , Cl - , Br - , I - , ClO 4 - , anions such as ASF 6 - , CH 3 CO 2 - , CF 3 SO 3 - , N (CF 3 SO 2 ) 2 - , C (CF 2 SO 2 ) 3 - (DEC), dimethyl carbonate (DMC), dipropyl carbonate (DPC), dimethyl sulfoxide, acetonitrile, dimethoxyethane, diethoxyethane, tetrahydrofuran And those dissolved and dissolved in an organic solvent selected from the group consisting of N-methyl-2-pyrrolidone (NMP), ethylmethyl carbonate (EMC), gamma-butyrolactone, and mixtures thereof. , But it is not limited thereto, and it is composed of a salt composed of a cation and an anion as a liquid solvent This can be used a variety of materials.

The first bat 10 may include an ultrasonic wave generator 17 installed inside the first bat 10 to vibrate the electrolyte 15 contained in the first bat 10 by ultrasonic waves. That is, when the ultrasonic wave generator 17 generates ultrasonic waves and vibrates to vibrate the electrolyte 15 contained in the first bat 10, the electrolyte 15 can be decomposed into fine particles. Therefore, the electrolytic solution 15 decomposed into fine particles can be impregnated into the positive electrode sheet 30 more easily than before the electrolytic solution 15 is decomposed into fine particles.

The second bat 20 may include an ultrasonic generator 17 installed in the second bat 20 to vibrate the electrolyte 15 contained in the second bat 20 by ultrasonic waves. That is, when the ultrasonic wave generator 17 generates ultrasonic waves and vibrates to vibrate the electrolyte 15 contained in the second bath 20, the electrolyte 15 can be decomposed into fine particles. Therefore, the electrolytic solution 15 decomposed into fine particles can be impregnated into the negative electrode sheet 40 more easily than before the electrolytic solution 15 is decomposed into fine particles.

2 is a diagram illustrating a system for manufacturing a supercapacitor according to an embodiment of the present invention. FIGS. 3 and 4 are views for explaining a supercapacitor manufacturing system according to an embodiment of the present invention. FIG. 3 is a view for explaining the formation of a capacitor element by stacking a positive electrode sheet, a negative electrode sheet and a separator according to an embodiment of the present invention And FIG. 4 is a view for explaining the winding of the capacitor element according to the embodiment of the present invention.

2 through 4, a system 100 for manufacturing a supercapacitor according to an exemplary embodiment of the present invention includes an anode shield 35, a cathode shield 45, a first bat 10, a second bat 20 , A pressing roller 80 and a winding roll 85. [

2, the anode shield 35, the anode shield 45, the first bat 10 and the second bat 20 are made of the anode shield 35, the anode shield 45, The first bat 10 and the second bat 20 are the same. Therefore, the pressing roller 80 and the winding roll 85 will be mainly described below.

As described above, the electrolytic solution impregnating apparatus is applied to the roll-to-roll system, and the supercapacitor manufacturing system 100 using the roll-to-roll system is also applied. The roll-to-roll system is a system in which a roll-shaped base material is supplied and the base material is continuously processed in accordance with the progress of the supercapacitor manufacturing system 100 to produce a complete product in the form of a roll. That is, the positive electrode sheet 30, the negative electrode sheet 40, the first separator 50, the second separator 52, and the third separator 54 are used as the base material in the supercapacitor manufacturing system 100 of the present invention, The positive electrode sheet 30 is bonded to the positive electrode sheet 35, the negative electrode sheet 40 is bonded to the negative electrode sheet 45, the first separator 50 is connected to the first separator roll 51, The third separation membrane 54 is wound on the separation membrane roll 53 in the form of a roll in the third separation membrane roll 55. A driving roller may be used as the anode separator 35, the anode separator 45, the first separator roll 51, the second separator roll 53 or the third separator roll 55. This base material can be processed through respective processes to be described later to form a rolled, i.e., wound capacitor element.

The pressing rollers 80a and 80b are disposed between the positive electrode sheet 10 impregnated with the electrolyte 15 and the negative electrode sheet 20 impregnated with the electrolyte 25 and between the positive electrode sheet 10 and the negative electrode sheet 20, A separator 50 for electrically insulating is laminated and then pressed to form a capacitor element 90.

The capacitor element 90 formed of the positive electrode sheet 10, the negative electrode sheet 20 and the separator 50 passes through the gap between the compression rollers 80a and 90b to form the positive electrode sheet 10, the negative electrode sheet 20, The anode sheet 30, the cathode sheet 40, and the separator 52 can be further adhered to each other, as compared with the case where the separators 50 and 50 are laminated without passing between the crimping rollers 80a and 90b.

The separator 50 may be laminated on both sides of the positive electrode sheet 30 or on both sides of the negative electrode sheet 40. That is, in order to electrically isolate the negative electrode sheet 40 and the positive electrode sheet 30 in the embodiment of the present invention, the first separator 50 and the second separator 30 are formed on both sides of the positive electrode sheet 30 with the positive electrode sheet 30 interposed therebetween. The first separator 50 and the third separator 54 are laminated on both sides of the negative electrode sheet 40 with the negative electrode sheet 40 sandwiched therebetween to form the capacitor element 90 However, the technical idea of the present invention is not limited to this, and may be applied to a separator 50 disposed between the positive electrode sheet 30 and the negative electrode sheet 40, a positive electrode sheet 30 having no separator 50 stacked thereon, The separator 52 may be laminated only on one surface of the negative electrode sheet 40 on which the negative electrode sheet 50 is not laminated.

The separating membranes 50, 52, and 54 are not limited to specific shapes, but a porous separating membrane is preferably used. For example, a polypropylene-based, polyethylene-based, or polyolefin-based porous separating membrane may be used.

The capacitor element 90 includes a positive electrode terminal 32 having one end attached to the positive electrode sheet 30 and the other end protruding in a predetermined direction and a negative electrode terminal 32 having one end attached to the negative electrode sheet 40 and the other end protruding in a certain direction And a negative electrode terminal 42. [ That is, the capacitor element 90 may include a positive electrode terminal 32 and a negative electrode terminal 42 arranged in a direction perpendicular to the positive electrode sheet 30 and the negative electrode sheet 40.

The material of the positive electrode terminal 32 and the negative electrode terminal 42 can be either aluminum or steel or stainless steel and the surface of the positive electrode terminal 32 and the negative electrode terminal 42 can be coated or formed by nickel or tin. .

The positive terminal 32 and the negative terminal 42 are connected to external power.

The winding roll 85 winds the capacitor element 90 formed through the pressing roller 80. That is, the winding roll 85 can rotate and spirally wind the sheet-like capacitor element 90. Thus, a wound-type supercapacitor is manufactured.

5 is a flowchart illustrating a method of manufacturing a supercapacitor according to an embodiment of the present invention.

5, a method of fabricating a supercapacitor according to an exemplary embodiment of the present invention includes a first impregnation step of impregnating an electrolyte solution into a cathode sheet that is introduced into a first bat by a roll- S11) and a second impregnation step (S12) of impregnating the negative electrode sheet, which is introduced into the first bat by the roll-to-roll method, into the electrolyte.

In the first impregnation step (S11), first of all, a first bat accommodating the electrolytic solution is prepared. The prepared first bat is processed by a roll-to-roll process, and a positive electrode sheet composed of the above-mentioned material is introduced. The charged positive electrode sheet is brought into contact with the electrolytic solution contained in the first bat, and the electrolytic solution is impregnated into the positive electrode sheet. When the positive electrode sheet is drawn out from the first bat after a certain period of time, the positive electrode sheet may be impregnated with the electrolytic solution uniformly distributed as a whole.

In the second impregnation step (S12), first, a second bat containing the electrolytic solution is prepared. The prepared second bat is processed by a roll-to-roll process, and a negative electrode sheet composed of the aforementioned material is introduced. The charged negative electrode sheet is brought into contact with the electrolytic solution contained in the second bat, and the electrolytic solution is impregnated into the negative electrode sheet. When the negative electrode sheet is drawn out from the second bat after a certain period of time, the negative electrode sheet may be impregnated with the electrolytic solution uniformly distributed as a whole.

Conventionally, a capacitor element formed by laminating a positive electrode sheet, a negative electrode sheet and a separator is laminated and wound up, and then an electrolyte solution is injected into the positive electrode sheet and the negative electrode sheet to impregnate the electrolyte. When the capacitor element is impregnated with the electrolytic solution after the capacitor element is wound, the positive electrode sheet and the negative electrode sheet are wound so that the contact area of the electrolyte solution with the positive electrode sheet and the negative electrode sheet is not uniform and the electrolyte solution is not uniformly distributed in the positive electrode sheet and the negative electrode sheet .

However, since the positive electrode sheet and the negative electrode sheet are impregnated with the electrolyte solution before the electrolyte solution is impregnated into the positive electrode sheet and negative electrode sheet through the first impregnation step (S11) and the second impregnation step (S12) Can be uniformly distributed and impregnated in the positive electrode sheet and the negative electrode sheet.

Next, the pressing roller is laminated (step S20) in which a cathode sheet impregnated with an electrolytic solution, a cathode sheet impregnated with an electrolyte, and a separator for electrically isolating the cathode sheet and the cathode sheet are laminated and then pressed to form a capacitor element ) Is performed.

In the laminating step S20, the separator may be laminated on both sides of the positive electrode sheet or on both sides of the negative electrode sheet. That is, the separator may have the first separator and the second separator stacked on both sides of the anode sheet with the anode sheet interposed therebetween, and the first separator and the second separator may be stacked on both sides of the anode sheet with the negative electrode sheet therebetween.

In addition, the first separator and the second separator may be stacked on both sides of the anode sheet with the anode sheet interposed therebetween, and the first separator and the second separator may be stacked on both sides of the anode sheet with the anode sheet therebetween. That is, the capacitor element may include a first separator, a second separator, and a third separator.

The stacked capacitor elements can pass between the compression rollers. The capacitor element having passed through the compression roller can have a thickness thinner than that before passing through the compression roller and can be further adhered to the positive electrode sheet, the negative electrode sheet and the separation membrane than before passing through the compression roller.

Before the step of stacking S20 and performing winding step S30 to be described later is performed, the capacitor element has a positive electrode terminal having one end attached to the positive electrode sheet and the other end protruding in a certain direction, And a negative terminal protruding in a predetermined direction. That is, the capacitor element may have a positive electrode terminal and a negative electrode terminal arranged in a direction perpendicular to the positive electrode sheet and the negative electrode sheet.

Next, a winding step (S30) for winding the capacitor element is performed.

The winding type super capacitor can be manufactured by spirally winding the capacitor element through the winding step S30. When the super capacitor is manufactured by winding, the capacity can be easily controlled according to the lengths of the wound anode and cathode sheets, the filling ratio of the electrode active material per unit volume is high, and the internal structure is excellent in pressure resistance, so that it can be used as a large capacity electric double layer capacitor.

The tips of the positive electrode sheet and the negative electrode sheet when wound, can be arranged and wound at approximately the same position. Therefore, if the capacitor element is formed in a state in which the positive electrode sheet and the negative electrode sheet face each other at substantially the same position, the power capacity efficiency of the supercapacitor can be increased, and unnecessary power can be prevented from being wasted.

After the capacitor element is wound, the capacitor element is fixed with a tape or the like. In this case, the tape or the like is contact-fixed to the separator having a relatively excellent resistance to breakage, whereby the breakage of the positive electrode sheet and the negative electrode sheet can be prevented.

6 is a flowchart illustrating a method of manufacturing a supercapacitor according to a second embodiment of the present invention, and FIG. 7 is a diagram illustrating a completion step according to a second embodiment of the present invention.

6 to 7, a method of fabricating a supercapacitor according to a second embodiment of the present invention includes a first impregnation step S11, a second impregnation step S12, a lamination step S20, a winding step S30, And a completion step S40.

6, the first impregnation step S11, the second impregnation step S12, the laminating step S20 and the winding step S30 are the same as the first impregnation step S11, the second impregnation step S12 ), The lamination step (S20), and the winding step (S30). Therefore, the following description focuses on the completion step (S40).

In the completion step (S40), the case 70 surrounds the appearance of the wound capacitor element 90. That is, the user can wrap the outer surface of the capacitor element 90 wound in accordance with the second embodiment of the present invention with the case 70 to safely use the supercapacitor.

The case 70 may be formed in a cylindrical shape and sized to cover the wound capacitor element 90. The positive electrode terminal 32 and the negative electrode terminal 42 protrude from one side of the capacitor element 90. The case 70 surrounds the surface on which the positive electrode terminal 32 and the negative electrode terminal 42 protrude, The positive electrode terminal hole 72 and the negative electrode terminal hole 74 may be formed so that the positive electrode terminal 32 and the negative electrode terminal 42 may protrude from the case 70. [ The positive terminal 32 and the negative terminal 42 may protrude out of the case 70 so that the capacitor element 90 can be connected to external power through the positive terminal 32 and the negative terminal 42.

8 is a view showing a first bat and a second bat provided with a lid according to a third embodiment of the present invention.

Referring to FIG. 8, the first bat 10 according to the third embodiment of the present invention may be provided with a lid 60, which is openable and closable at an upper portion and is provided with a draw-in hole 62 and a draw- have.

For example, if the lid 60 is not provided in the first bat 10, dust, germs and other foreign matter of the outside air may be injected into the electrolyte 15 contained in the first bat 10. However, the first bat 10 according to the third embodiment of the present invention is provided with the lid 60 in which the inside of the first bat 10 is opened and closed and the inlet hole 62 and the outlet hole 64 are formed, Dust, germs and other foreign matter may be little injected into the electrolytic solution 15 when the first bat 10 does not have the lid 60 and the positive electrode sheet 30 may be inserted into the inlet hole 62, And can be drawn out from the first bat 10 through the draw-out holes 64. [0050]

The second bat 20 according to the third embodiment of the present invention may be provided with a lid 60 provided on the upper portion to be openable and closable and formed with a draw-in hole 62 and a draw-out hole 64. [

For example, if the lid 60 is not provided in the second bat 20, dust, germs and other foreign matter may be introduced into the electrolyte 15 contained in the second bat 20. However, the second bat 20 according to the third embodiment of the present invention is provided with a lid 60 having an inlet hole 62 and a draw-out hole 64 formed therein to open and close the inside of the second bat 20, Dust, germs, and other foreign matter may be supplied to the electrolyte 15 less than when the second battery 20 is not provided with the lid 60. When the negative electrode sheet 40 is inserted into the inlet hole 62, And can be drawn out of the second bats 20 through the draw-out holes 64. [0064]

It should be noted that the embodiments disclosed in the drawings are merely examples of specific examples for the purpose of understanding, and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

1: electrolyte impregnation device
10: First bat
15: electrolyte
17: Ultrasonic wave generator
20: The second bat
30: anode sheet
35: anodic sytrol
32: positive terminal
40: cathode sheet
45: Negative sytrol
42: cathode terminal
50: first separator
51: first separator roll
52: Second separation membrane
53: Second separation membrane roll
54: third separator
55: Third separation membrane roll
60: Lid
62: Inlet hole
64: Draw-out hole
70: Case
72: Positive electrode terminal hole
74: negative terminal hole
80a, 80b:
85: Winding roll
90: Capacitor element
100: Super Capacitor Manufacturing System

Claims (9)

An electrode sitrol in which a rolled electrode sheet is wound;
And a bat accommodating the electrolyte solution and impregnated with the electrolyte solution by the roll-to-roll method,
Wherein the bat comprises a first bat and a second bat that receive the electrolyte,
Wherein the electrode sheet includes a positive electrode sheet having a roll-shaped positive electrode sheet wound thereon and a negative electrode sheet having a rolled negative electrode sheet wound thereon,
The positive electrode sheet is fed by a roll-to-roll process into the first bat, impregnated with the electrolyte,
Wherein the negative electrode sheet is advanced by a roll-to-roll process and is introduced into the second bat to impregnate the electrolyte solution. delete The method according to claim 1,
Wherein the positive electrode sheet includes a positive electrode collector and a positive electrode active material provided on one or both surfaces of the positive electrode collector,
Wherein the negative electrode sheet includes a negative electrode collector and a negative electrode active material provided on one or both surfaces of the negative electrode collector. The method of claim 3,
Wherein the positive electrode current collector and the negative electrode current collector are made of PC (polycarbonate). The method according to claim 1,
Wherein the first and second bats further include a lid provided on the upper portion so as to be openable and closable and having a draw-out hole and a draw-in hole, respectively. The method according to claim 1,
Wherein the first and second bats further include an ultrasonic wave generating unit installed inside the ultrasonic wave generating unit to vibrate the electrolytic solution accommodated in the first and second bats by ultrasonic waves. A positive electrode sheet having a rolled positive electrode sheet wound thereon;
A negative electrode sheet in which a rolled negative electrode sheet is wound;
A first bat containing an electrolyte solution and impregnated with the electrolyte solution, the positive electrode sheet being advanced to the inside by a roll-to-roll method;
A second bat accommodating the electrolyte solution and impregnating the negative electrode sheet with the electrolyte solution by a roll-to-roll method,
A negative electrode sheet impregnated with the electrolyte solution, the negative electrode sheet impregnated with the electrolyte solution, and a separator for electrically insulating the positive electrode sheet and the negative electrode sheet from each other, and then pressing and forming a capacitor element;
A winding roll for winding the capacitor element formed through the compression roller;
And a second capacitor connected to the second capacitor. A first impregnation step of impregnating the electrolyte sheet into a positive electrode sheet which is advanced by a roll-to-roll process in a first bat containing the electrolyte,
A second impregnation step of impregnating the electrolyte solution into the negative electrode sheet which is introduced into the second bat by the roll-to-roll method in the second bat containing the electrolyte solution;
A pressing roller is disposed between the positive electrode sheet impregnated with the electrolyte, the negative electrode sheet impregnated with the electrolyte, and the separator separating the positive electrode sheet and the negative electrode sheet, which electrically isolate the positive electrode sheet and the negative electrode sheet, step;
A winding step of winding the capacitor element;
And forming a super capacitor on the substrate. 9. The method of claim 8,
A case surrounding the outer surface of the wound capacitor element;
Further comprising the step of:
KR1020120158148A 2012-12-31 2012-12-31 Electrolyte impregnation system, manufacturing system and manufacturing method of super capacitor thereof KR101416813B1 (en)

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Application Number Priority Date Filing Date Title
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09139325A (en) * 1995-11-16 1997-05-27 Shoei Kk Device and method for manufacturing electrolytic capacitor
KR100273393B1 (en) * 1998-07-10 2000-12-15 권호택 Manufacturing method of aluminum electrolytic capacitor
JP2001191014A (en) * 2000-01-07 2001-07-17 Nikku Ind Co Ltd Vacuum impregnating method of sheet like material
KR20120019849A (en) * 2010-08-27 2012-03-07 삼성전기주식회사 Method of manufacturing lithium ion capacitor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09139325A (en) * 1995-11-16 1997-05-27 Shoei Kk Device and method for manufacturing electrolytic capacitor
KR100273393B1 (en) * 1998-07-10 2000-12-15 권호택 Manufacturing method of aluminum electrolytic capacitor
JP2001191014A (en) * 2000-01-07 2001-07-17 Nikku Ind Co Ltd Vacuum impregnating method of sheet like material
KR20120019849A (en) * 2010-08-27 2012-03-07 삼성전기주식회사 Method of manufacturing lithium ion capacitor

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