KR101873198B1 - Apparatus For Connecting Meterial Of Rechargeable Battery - Google Patents

Abstract

A material connecting device for manufacturing a secondary battery according to the present invention in which a material for manufacturing a secondary battery such as an electrode plate or a separator used for manufacturing a secondary battery is exhausted, A first material supply unit for supplying a first material supported by the first material spool to the roll winder and a second material spool for supporting a second material to be connected to the first material, A second material supply unit for supplying the second material as it is exhausted, an alignment unit for aligning the end of the first material with the end of the second material, a tape attached to the end of the first material and the tip of the second material, And a spool exchange unit for exchanging the positions of the first material spool and the second material spool. Therefore, in the secondary battery manufacturing process, There is an effect that can enhance the production efficiency by granting the castle.

Description

[0001] Apparatus For Connecting Meterial Rechargeable Battery [

The present invention relates to a method for manufacturing a secondary battery, which comprises supplying a material for manufacturing the secondary battery to a roll winding machine for winding a material for manufacturing a secondary battery in the form of rolls and supplying the material for manufacturing the secondary battery to a new secondary battery And to a material connecting device for manufacturing a secondary battery that connects manufacturing materials.

Generally, a secondary battery is a battery which can be repeatedly used through discharging and reverse charging processes that convert chemical energy into electric energy. Examples of the secondary battery include a nickel-cadmium (Ni-Cd) battery, a nickel- A lithium-metal battery, a lithium-ion (Ni-Ion) battery, and a lithium-ion polymer battery (hereinafter referred to as "LIPB ").

A secondary cell is composed of an anode, a cathode, an electrolyte, and a separator, and stores and generates electricity using a voltage difference between different anode and cathode materials. Here, the discharge is to move electrons from a cathode having a high voltage to a cathode having a low voltage (generating electricity as much as the voltage difference of the anode), and charging means transferring the electrons again from the anode to the cathode where the anode material receives electrons and lithium ions And returned to the original metal oxide. That is, when the secondary battery is charged, the charge current flows as the metal atoms move from the anode to the cathode through the separator, and when discharged, the metal atoms move from the cathode to the anode and the discharge current flows.

Recently, secondary batteries have attracted attention as an energy source that is widely used in IT products, automobiles, and energy storage. In the field of IT products, the secondary battery can be used continuously for a long time, and it is required to be downsized and lightweight. In the field of automobiles, high output, durability and stability for eliminating explosion risk are required. In the energy storage field, surplus power produced by wind power, solar power generation, etc. is stored. As it is used as a fixed type, a secondary battery of a more relaxed condition can be applied.

In particular, lithium secondary batteries have been in research and development since the early 1970s. In 1990, lithium-ion batteries using carbon as a cathode instead of lithium metal were developed and put into practical use. The battery has a cycle life of over 500 cycles and a short charging time of 1 to 2 hours It has the highest sales growth rate among rechargeable batteries and can be lightened by 30 ~ 40% less than nickel-hydrogen battery. In addition, the lithium secondary battery has the highest unit cell voltage (3.0 to 3.7 V) among the existing secondary batteries and has excellent energy density, and can have characteristics optimized for mobile devices.

Such a lithium secondary battery is generally classified into a liquid electrolyte cell and a polymer electrolyte cell depending on the type of the electrolyte. A battery using a liquid electrolyte is called a lithium ion battery, and a battery using a polymer electrolyte is called a lithium polymer battery. In addition, the exterior material of the lithium secondary battery can be formed into various kinds, and typical exterior materials include cylindrical, prismatic, pouch, and the like. Inside the casing of the lithium secondary battery, a positive electrode plate, a negative electrode plate, and a separator (separator) interposed therebetween are stacked or wound.

On the other hand, the secondary battery manufacturing apparatus can include a roll winding machine for winding a material for manufacturing a secondary battery such as an electrode plate and a separator in the form of rolls, and a material supply section for supplying a material for manufacturing a secondary battery by a roll winding machine. Generally, the material for manufacturing the secondary battery is provided in a roll form and supported on the spool, and the material for manufacturing the secondary battery is unwound from the spool and wound around the roll coiler.

However, as the secondary battery manufacturing process proceeds, the secondary battery manufacturing material is exhausted. In order to replace the new secondary battery manufacturing material with the spool, the secondary battery manufacturing process must be stopped, .

Korean Laid-Open Patent No. 2015-0091828 (disclosed on Aug. 12, 2015)

An object of the present invention is to provide a secondary battery manufacturing method for connecting a material for manufacturing a secondary battery to a material for manufacturing a secondary battery when a material for manufacturing a secondary battery such as an electrode plate, Device.

A material for manufacturing the secondary battery is supplied to a roll winding machine for winding the material for manufacturing the secondary battery in the form of rolls and a new material for manufacturing the secondary battery is supplied to the material for manufacturing the secondary battery, The apparatus for connecting a material for manufacturing a secondary battery according to the present invention comprises a first material supply unit for supplying a first material supported by a first material spool to the roll winder, a second material supply unit for supporting a second material to be connected to the first material, A second material supply unit including a second material spool and supplying the second material as the first material is exhausted, an alignment unit for aligning the distal end of the first material with the tip of the second material, And a tape attaching portion for attaching a tape to the distal end of the second material to connect the distal end of the first material and the distal end of the second material, and a tape attaching portion for exchanging positions of the first material spool and the second material spool And may include a spool exchange portion.

The second material supply unit may include a second material spool for supporting the second material provided in a roll form, a second material spool disposed between the roll take-up unit and the second material spool, A second material attracting plate for attracting the front end portion of the second material, and a second material attracting portion for attracting the second material attracting plate to cut the second material from the second material, And a second material cutter for separating the surplus portion of the second material.

The second material feeder is disposed at one side of the first material fed toward the roll winder and the second material feeder is configured to cut the excess portion of the second material by the second material cutter, And a second material attracting plate rotating unit that rotates the second material attracting plate that has attracted the second material to arrange the tip of the second material in a direction in which the first material is conveyed.

Wherein the second material supply unit feeds the second material adsorption plate that has adsorbed the second material toward the first material fed toward the roll winder and feeds the tip of the second material toward the roll winder, And a second material attracting plate first conveying unit arranged in the conveying path of the first material attracting plate.

Wherein the aligning portion includes an alignment adsorption plate disposed in front of the second material adsorption plate in the conveying direction of the first material for adsorbing the first material and a second adsorption portion for cutting the first material adsorbed to the alignment adsorption plate, And the like.

The second material supply unit may further include a second material adsorption plate second transfer unit for transferring the second material adsorption plate toward the aligned adsorption plate to align the tip of the second material at the distal end of the first material.

Wherein the tape attaching portion includes a first tape attracting plate disposed on the opposite side of the aligned attracting plate and the second work attracting plate for attracting the first tape, a second tape attracting plate for conveying the first tape attracting plate toward the aligned attracting plate and the second work attracting plate, A first taping drive unit for attaching the first tape to a distal end of a first material and a distal end of the second material to form a first connection part, the first taping drive unit being disposed in a path of the first connection part to be transported toward the roll winder, A second tape attracting plate disposed on the opposite side of the first connecting portion for attracting the second tape, the second tape attracting plate being conveyed toward the first connecting portion to attach the second tape to the opposite side of the first connecting portion, And a second taping drive unit that forms a connection portion.

The tape attaching portion may further include a support plate which is opposite to the second tape sucking plate and supports the first connection portion when the second tape is attached.

Wherein the first material supply unit includes a first material spool that supports the first material provided in a roll shape, and after the first material is adsorbed to the aligned adsorption plate and the end of the first material is formed, The new first material may be connected to the second material as the first material is supported on the material spool and the second material connected to the first material is exhausted.

The material connecting apparatus for manufacturing the secondary battery may further include a stopper intermittently holding the first material or the second material while the first material and the second material are connected.

The material connecting apparatus for manufacturing a secondary battery according to the present invention can improve the production efficiency by connecting new materials when exhausting material such as an electrode plate and a separator used for manufacturing a secondary battery, It is effective.

1 is a perspective view showing a material connecting apparatus for manufacturing a secondary battery according to the present embodiment.
2 is a front view showing a material connecting apparatus for manufacturing a secondary battery according to the present embodiment.
FIGS. 3 to 20 are process diagrams showing a material connecting process using a material connecting apparatus for manufacturing a secondary battery according to the present embodiment.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed 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 only examples of the present invention, and are not intended to represent all of the technical ideas of the present invention, so that various equivalents and modifications may be made thereto .

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention.

FIG. 1 is a perspective view showing a material connecting apparatus for manufacturing a secondary battery according to the present embodiment, FIG. 2 is a front view showing a material connecting apparatus for manufacturing a secondary battery according to this embodiment, and FIGS. FIG. 2 is a process diagram showing a material connecting process using a material connecting device for manufacturing a secondary battery according to the present invention.

1 to 20, a material connecting apparatus 100 for manufacturing a secondary battery according to an embodiment of the present invention is used in a secondary battery manufacturing apparatus. The apparatus includes a pole plate 2, A secondary battery manufacturing material such as a separator is supplied to a new material when the material is exhausted, so that the supply of the material is continuous without interruption.

For this purpose, the material connecting apparatus 100 for manufacturing a secondary battery according to the present embodiment may include a first material supplying unit 100, a second material supplying unit 200, an aligning unit 300, and a tape attaching unit 400 have.

First, the first material supply unit 100 is provided to supply the first material 10 to the roll winding machine 2. The first material supply unit 100 may include a first material spool 110. The first material spool 110 supports the first material 10 provided in the form of a roll. The first material 10 released from the first material spool 110 is wound around the roll winding machine 2.

When the first material 10 is used to manufacture the secondary battery, the first material 10 supported by the first material spool 110 may be exhausted.

The second material supply unit 200 connects the second material 20 that is the same as the first material 10 to the first material 10 as the first material 10 supplied to the roll winding unit 2 is exhausted . The second material supply unit 200 includes a second material spool 210, a second material take-up unit 220, a second material attracting plate 230, a second material cutter 240, a second material attracting plate rotating unit 250 , A second material attracting plate first conveying unit 260 and a second material attracting plate second conveying unit 270. [

The second material spool 210 may be disposed on the opposite side of the first material spool 110 with the first material 10 being conveyed toward the roll winding machine 2 therebetween. The second material spool 210 supports the second material 20 provided in the form of a roll. A surplus portion such as a protective tape for protecting the tip of the second material 20 may be present at the distal end of the second material 20 supported by the second spool 210, In order to connect the tip of the second material 20, the excess portion of the second material 20 should be cut. Therefore, the operator can clamp the tip of the second material 20 to the second material take-up winder 220 before the first material 10 is used up.

The second material winder 220 is disposed between the roll winder 2 and the second material spool 210. The second material winder 220 is disposed on one side of the first material 10 to be transported toward the roll winder 2 in order to prevent the first material 10 fed to the roll winder 2 from interfering with the first material 10. [ . The second material adsorption plate 230 adsorbs the second material 20 clamped to the second material take-up machine 220. The second workpiece cutter 240 cuts the second workpiece 20 wound around the second workpiece winder 220 and attracted to the second workpiece attracting plate 230. Therefore, the excess portion of the second material 20 can be separated from the second material 20, and wound and wound around the second material take-up machine 220.

The second material attracting plate rotating unit 250 is configured such that after the surplus portion of the second workpiece 20 is cut by the second workpiece cutter 240 and then the second workpiece attracting plate 230 by which the second workpiece 20 is attracted, . Therefore, the tip of the second material 20 can be arranged in the direction in which the first material 10 is fed.

The second material attracting plate first conveying unit 260 conveys the second material attracting plate 230 which attracts the second material 20 toward the first material 10 conveyed toward the roll winding machine 2. The tip of the second workpiece 20 can be aligned with the conveyance path of the first workpiece 10 being conveyed toward the roll copier 2.

The alignment unit 300 is provided to align the distal ends of the first and second materials 20 and 20 fed to the roll holder 2 with each other. The alignment unit 300 may include an alignment attracting plate 310 and an alignment cutter 320. The sorting adsorption plate 310 is disposed in front of the second material adsorption plate 230 in the conveying direction of the first material 10 to adsorb the first material 10. The alignment cutter 320 cuts the first material 10 adsorbed on the alignment adsorption plate 310 to form the end of the first material 10.

In order to prevent the first material 10 from being continuously wound by the roll winding machine 2 as the first workpiece 10 is cut and the end of the first workpiece 10 is formed, And the aligning attracting plate 310 may be provided with a stopper 500. The stopper 500 may include a support roller 510 for supporting one surface of the first material 10 by rolling and a pressure pad 520 for being linearly conveyed toward the support roller 510. When the first material 10 is supported by the alignment support plate 450, the stopper 500 presses the first material 10 to maintain the position of the first material 10.

When the first material 10 is cut by the alignment cutter 320 to form the end of the first material 10, the second material attracting plate second conveying unit 270 is moved toward the aligning attracting plate 310 The second material attracting plate 230 to which the tip of the second material 20 is adsorbed is transferred. Accordingly, the tip of the second material 20 can be aligned with the end of the first material 10.

The tape attaching unit 400 is provided to attach the tape to the end of the first material and the tip of the second material to connect the end of the first material 10 to the tip of the second material 20 . The tape attaching portion 400 may include a first tape attracting plate 410, a first taping driving unit 420, a second tape attracting plate 430 and a second taping driving unit 440.

The worker is required to attach the first tape adsorption plate 410 to the first material 10 in consideration of the connection between the first material 10 and the second material 20 before starting the secondary battery manufacturing process or before the first material 10 is exhausted. And the second tape 51 can be attracted to the second tape attracting plate 430. In this case,

The first tape attracting plate 410 may be disposed opposite the alignment attracting plate 310 and the second material attracting plate 230. The second taping drive unit 440 feeds the first tape sucking plate 410 toward the alignment sucking plate 310 and the second material sucking plate 230. The first tape 51 is attached to the end of the first material 10 adsorbed on the alignment adsorption plate 310 and to the tip of the second material 20 adsorbed to the second material adsorption plate 230, A first connecting portion 71 having a first tape 51 is formed at the distal end of the material 10 and at the tip of the second material 20.

When the first connection portion 71 is formed in this manner, the stopper 500 releases the first material 10 from the compressed state, and the transfer of the first material 10 can be resumed. When the first connection part 71 is positioned on the side of the second tape attraction plate 430, the stopper 500 presses the first workpiece 10 again to maintain the position of the first workpiece 10.

Subsequently, the second tape suction plate 430 is disposed in the path of the first connection portion 71 for transfer toward the roll-brush dryer 2, and may be disposed on the opposite side of the first connection portion 71. The second taping drive unit 440 transfers the second tape attracting plate 430 toward the first connecting portion 71. The second tape 52 is attached to the opposite side of the first connection portion 71 and the second connection portion 72 is formed on the opposite side of the first connection portion 71. [ A second tape 52 attached to the second tape attracting plate 430 is provided on the opposite side of the second tape attracting plate 430 with the first connecting portion 71 therebetween. A support plate 450 supporting the first connection portion 71 may be disposed so that the first connection portion 52 can be smoothly attached.

When the first connecting portion 71 and the second connecting portion 72 are formed at the ends of the first material 10 and the second material 20 as described above, The remainder of the first material 10 and the second material 20 connected to the first material 10 are supplied and the secondary battery manufacturing process can be continuously performed.

On the other hand, the spool exchange part 600 changes the positions of the first material spool 110 and the second material spool 210. Although not shown, the spool exchanging part 600 supports the first material spool 110 and the second material spool 210 together, and reciprocally feeds the first material spool 110 and the second material spool 210 together And a combination of at least one linear actuator and at least one rotary actuator for rotating.

The second material spool 210 is transferred to the position of the first material spool 110 by the spool exchange unit 600 and the first material spool 110 is transferred to the position of the second material spool 210. [ A new first material 11 may be mounted on the first material spool 110 whose position is exchanged with the second material spool 210.

When the secondary battery manufacturing process continues and the second material 20 is exhausted, the second material 20, which is the same as the connecting process of the first material 10 and the second material 20 as described above, The connecting process of the first material 11 is performed and the connecting process of the second material 20 and the new first material 11 can be performed.

As described above, the material connecting apparatus 100 for manufacturing a secondary battery according to the present embodiment can be manufactured by connecting the first material 10 and the second material 20 as described above, The connecting process of the secondary battery 11 can be repeated indefinitely while repeating the connecting process of the secondary battery 11.

Therefore, the material connecting apparatus for manufacturing secondary batteries according to the present embodiment can improve the production efficiency by providing continuity of the manufacturing process of the secondary battery.

The embodiments of the present invention described above and shown in the drawings should not be construed as limiting the technical idea of the present invention. The scope of protection of the present invention is limited only by the matters described in the claims, and those skilled in the art will be able to modify the technical idea of the present invention in various forms. Accordingly, such improvements and modifications will fall within the scope of the present invention as long as they are obvious to those skilled in the art.

1: Material for producing secondary battery connection device 2: Roll winding
10: first material 11: new first material
20: second material 51: first tape
52: second tape 71: first connection part
72: second connecting portion 73: third connecting portion
74: fourth connection part 100: first material supply part
110: First material spool
200: second material supply unit 210: second material spool
220: second material take-up machine 230: second material attracting plate
240: second material cutter 250: second material suction plate rotating unit
260: Second material attraction plate first feed unit
270: second material attracting plate second conveying unit
300: Aligning unit 310: Aligning suction plate
320: alignment cutter 400: tape attaching part
410: first tape attracting plate 420: first taping driving unit
430: second tape attracting plate 440: second taping drive unit
450: support plate 500: stopper
510: support roller 520: pressure pad
600: spool exchange part

Claims (10)

A material for manufacturing the secondary battery is supplied to a roll winding machine for winding the material for manufacturing the secondary battery in the form of rolls and a new material for manufacturing the secondary battery is supplied to the material for manufacturing the secondary battery, 1. A material connecting apparatus for manufacturing a secondary battery,
A first material supply unit for supplying a first material supported by the first material spool to the roll winder;
A second material supply unit including a second material spool for supporting a second material to be connected to the first material, the second material supply unit supplying the second material as the first material is exhausted;
An aligning portion for aligning a distal end of the first material with a distal end of the second material;
A tape attaching portion attaching a tape to a distal end of the first material and a distal end of the second material to connect the distal end of the first material and the distal end of the second material;
And a spool exchange unit for exchanging positions of the first material spool and the second material spool,
The second material supply unit
A second material spool for supporting the second material provided in a roll form;
A second material winder disposed on one side of the first material fed toward the roll winder and winding an excess portion of the second material disposed at the tip end of the second material;
A second material adsorption plate for adsorbing a front end portion of the second material;
A second material cutter for cutting the second material adsorbed on the second material adsorption plate to separate an excess portion of the second material from the second material;
After the surplus portion of the second workpiece is cut by the second workpiece cutter, the second workpiece attracting plate that has attracted the second workpiece is rotated so that the tip of the second workpiece is moved in the direction in which the first workpiece is fed And a second material attracting plate rotating unit arranged to align the first material attracting plate rotating unit and the second material attracting plate rotating unit. delete delete The method according to claim 1,
The second material supply unit
The second material attracting plate that has sucked the second material toward the first material being fed toward the roll winder is fed to feed the tip of the second material to the feed path of the first material to be fed toward the roll winder And a second material attraction plate first transfer unit for aligning the second material attraction plate. 5. The method of claim 4,
The alignment unit
An alignment adsorption plate disposed in front of the second material adsorption plate in a conveying direction of the first material to adsorb the first material;
And an alignment cutter for cutting the first material adsorbed on the aligned adsorption plate to form an end of the first material. 6. The method of claim 5,
The second material supply unit
And a second material attracting plate second transfer unit for transferring the second material attracting plate toward the aligned attracting plate to align the tip of the second material with the end of the first material. Connection device. The method according to claim 6,
The tape attaching portion
A first tape adsorption plate disposed opposite to the aligned adsorption plate and the second material adsorption plate for adsorbing the first tape;
A first taping drive for transferring the first tape chucking plate toward the aligned chucking plate and the second chucking chuck to form a first connecting portion by attaching the first tape to a distal end of the first material and a tip of the second raw material, unit;
A second tape sucking plate disposed on a path of the first connecting portion for feeding toward the roll winder and disposed on the opposite side of the first connecting portion for sucking the second tape;
And a second taping drive unit for transferring the second tape sucking plate toward the first connecting unit and attaching the second tape to the opposite surface of the first connecting unit to form a second connecting unit. Material connection for battery manufacturing. 8. The method of claim 7,
The tape attaching portion
Further comprising a support plate facing the second tape attracting plate and supporting the first connecting portion when the second tape is attached to the second tape attracting plate. 9. The method of claim 8,
The first material supply unit
And a first material spool for supporting the first material provided in a roll form,
After the first material is adsorbed on the sorted adsorption plate and the end of the first material is formed,
Wherein the new first material is connected to the second material as the first material is supported on the first material spool and the second material connected to the first material is exhausted. Connection device. 10. The method of claim 9,
Further comprising a stopper intermittently holding a position of the first material or the second material while the first material and the second material are connected to each other.

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