KR20230090115A - Electrode plate bonding device of pouch-type primary battery - Google Patents

Abstract

The present invention includes: a pouch supply unit which supplies pouches having a predetermined area; a support unit disposed on one side of the pouch supply unit and rotatably supporting the positive and negative electrode plates wound in a roll shape, respectively; a cutting unit provided at the front end of the support unit and cutting the positive or negative electrode plates pulled out from the support unit into a predetermined shape; a transfer unit which adsorbs the positive or negative electrode plates cut in the cutting unit and transfers the same to the pouch supply unit; and a bonding unit which adsorbs and transfers the positive or negative plates transferred by the transfer unit and bonds the same to one side of the pouch.

Description

Electrode plate bonding device of pouch-type primary battery {ELECTRODE PLATE BONDING DEVICE OF POUCH-TYPE PRIMARY BATTERY}

The present invention relates to an apparatus for bonding electrode plates of a pouch-type primary battery, and more particularly, to bonding electrode plates of a pouch-type primary battery configured to automatically bond a positive or negative electrode plate constituting a primary battery to one side of a pouch in an automated manner. It's about the device.

Unlike secondary batteries, primary batteries refer to single-use batteries that cannot be regenerated by charging, and include zinc chloride batteries, alkali manganese batteries, silver batteries, mercury batteries, lithium batteries, and the like.

There are various types of primary batteries depending on their appearance, but in general, cylindrical type primary batteries are the most widely used in the market.

Recently, pouch-type primary batteries having high energy density and excellent space efficiency are being manufactured. Since the pouch-type primary battery has a small volume and is thin, it has the advantage of being applicable to products having various shapes.

Recently, the demand for disposable auxiliary batteries for charging smart phones is increasing, and the disposable auxiliary batteries are developed and sold in a pouch type.

A pouch-type primary battery is manufactured by a manufacturing method different from that of a secondary battery because it is composed of one positive electrode plate and a negative electrode plate, unlike a secondary battery composed of a plurality of positive electrode plates and negative electrode plates.

For example, since the first pouch to which the positive electrode plate is bonded and the second pouch to which the negative electrode plate is bonded are sealed, a process of bonding the positive electrode plate or the negative electrode plate to one surface of the pouch is required.

Conventionally, the cutting process of cutting the positive and negative plates into set sizes and shapes, and the process of attaching the positive or negative plates cut in the cutting process to one side of the pouch are performed in separate places by different equipment, in particular, Since the process of attaching the positive electrode plate to one side of the pouch and the process of attaching the negative electrode plate to one side of the pouch are separately performed by different equipment, there is a problem in that the productivity of the primary battery is lowered.

Therefore, the applicant of the present invention has proposed the present invention in order to solve the above problems, and related prior art literature is Japanese Patent Publication No. 2021-158093 'Sheet-like lithium primary battery and manufacturing method thereof' .

The present invention is to solve the above problems, and is a pouch type configured to perform a process of cutting a positive electrode plate and a negative electrode plate to a set standard and a process of attaching the cut positive electrode or negative electrode plate to one side of a pouch in one facility. It is an object of the present invention to provide a device for bonding electrode plates of a primary battery.

The present invention, a pouch supply unit for supplying a pouch having a predetermined area; a support portion disposed on one side of the pouch supply unit and rotatably supporting the positive electrode plate and the negative electrode plate wound in a roll shape; a cutting unit provided at a front end side of the support unit and cutting the positive or negative electrode plate drawn out from the support unit into a set shape; a transfer unit adsorbing the positive electrode plate or the negative electrode plate cut by the cutting unit and transporting the positive electrode plate or the negative electrode plate in the direction in which the pouch is disposed; and a bonding unit adsorbing and transporting the positive electrode plate or the negative electrode plate transported by the transfer unit to bond the positive electrode plate or the negative electrode plate to one surface of the pouch.

In addition, the cutting unit may include a first seating block on which the positive electrode plate cut into a set shape is placed; a first separation block disposed above the first seating block and moving in a straight and vertical direction to separate the positive plate placed on the first seating block from the first seating block; a second seating block disposed on one side of the first seating block and on which the negative electrode plate cut into a set shape is placed; and a second separation block disposed above the second seating block and moving in a linear and vertical direction to separate the negative plate placed on the second seating block from the second seating block.

In addition, the transfer unit is moved in a straight line and a vertical direction and disposed to face the first seating block or the second seating block, and receives the positive electrode plate adsorbed to the first separation block or adsorbed to the second separation block. A transfer block for receiving the negative electrode plate; may be included.

In addition, the bonding unit may include a pressure block for receiving the positive electrode or negative electrode plate adsorbed by the transfer block and bringing the positive or negative electrode plate into contact with one surface of the pouch; and a support block provided to be liftable from a lower portion of the pouch and supporting the other surface of the pouch when the pressure block is lowered toward the pouch.

In addition, the pressing block may be provided in plurality on the rotation table at intervals from each other.

In addition, the support part, the cutting part, the transfer part, and the bonding part may be respectively disposed on both sides of the pouch supplied from the pouch supply unit.

The electrode plate bonding device for a pouch-type primary battery according to the present invention provides a configuration in which a positive electrode or negative electrode plate cut in a set shape can be selectively transported on one surface of a pouch in an automated manner and then bonded to the pouch. Productivity of the primary battery may be increased by accelerating a process of manufacturing the primary battery.

In addition, the device for attaching electrode plates of a pouch-type primary battery according to the present invention can simultaneously perform a process of attaching a positive electrode plate to a pouch and a process of attaching a negative electrode plate to a pouch at a certain place in a workplace, thereby simplifying the work space. there is.

1 is a perspective view of an electrode plate bonding device for a pouch-type primary battery according to an embodiment of the present invention.
2 is a side view of the electrode plate bonding device shown in FIG. 1;
3 is a perspective view illustrating a process in which a positive electrode plate or a negative electrode plate cut by a cutting unit according to an embodiment of the present invention is transferred to a transfer unit;
FIG. 4 is a perspective view illustrating a process in which the transfer unit shown in FIG. 3 transfers a positive electrode plate or a negative electrode plate to a bonding unit;
5 is a side view showing a state in which a positive electrode plate or a negative electrode plate is adsorbed by a bonding unit according to an embodiment of the present invention;
6 is a plan view showing a state in which electrode plate bonding devices according to an embodiment of the present invention are respectively disposed on both sides of a pouch supply unit;
7 is a front view of the electrode plate bonding device shown in FIG. 6;

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and will be implemented in various forms different from each other, only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims.

Hereinafter, an electrode plate bonding device for a pouch-type primary battery according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7 . In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order not to obscure the subject matter of the present invention.

1 is a perspective view of an electrode plate bonding device for a pouch-type primary battery according to an embodiment of the present invention, FIG. 2 is a side view of the electrode plate bonding device shown in FIG. 1, and FIG. 3 is a side view of the electrode plate bonding device shown in FIG. A perspective view showing a process in which the positive electrode or negative electrode plate cut by the cutting unit according to the present invention is transferred to the transfer unit, and FIG. 4 is a perspective view showing the process in which the transfer unit shown in FIG. 3 transfers the positive or negative electrode plate to the bonding unit, and FIG. 6 is a side view showing a state in which the bonding unit adsorbs the positive electrode plate or the negative electrode plate according to an embodiment of the present invention, and FIG. 6 is a plan view showing a state in which electrode plate bonding devices according to an embodiment of the present invention are respectively disposed on both sides of the pouch supply unit, 7 is a front view of the electrode plate bonding device shown in FIG. 6;

As shown in FIGS. 1 and 2 , the electrode plate bonding device 100 for a pouch-type primary battery according to an embodiment of the present invention includes a pouch supply unit 200 for supplying a pouch P having a predetermined area; see Figure 6); a support part 300 disposed on one side of the pouch supply part 200 and rotatably supporting the positive electrode plate 10 and the negative electrode plate 20 wound in a roll shape; a cutting part 400 provided at a front end side of the support part 300 and cutting the positive plate 10 or the negative plate 20 drawn out from the support part 300 into a set shape; a transfer unit 500 adsorbing the positive electrode plate 10' or the negative electrode plate 20' cut by the cutting unit 400 and transporting the pouch P in the direction in which the pouch P is disposed; and a bonding unit 600 adhering the positive electrode plate 10' or the negative electrode plate 20' transported by the transfer unit 500 to one side of the pouch P by adsorbing and transporting the positive electrode plate 10' or the negative electrode plate 20'.

First, the pouch supply unit 200 has a configuration in which the pouch P wound in a roll form is unwound and transported in a linear direction. The pouch P supplied from the pouch supply unit 200 has a predetermined area where the positive electrode plate 10' or the negative electrode plate 20' cut by the predetermined cutting unit 400 can be disposed. For example, a positive electrode plate 10' or a negative electrode plate 20' cut in a shape set on one side or the other side of the pouch P in the width direction may be bonded along the longitudinal direction of the pouch P.

The support part 300 rotatably supports the positive electrode plate 10 and the negative electrode plate 20 wound in a roll shape, respectively. For example, a roll-shaped positive electrode plate 10 is rotatably provided on one side of the support 300, and a roll-shaped negative electrode plate 20 is rotatably provided on the other side of the support unit 300. At this time, the slurry is coated on the positive electrode plate 10 or the negative electrode plate 20 .

In addition, a separator is coated on one surface of the negative electrode plate 20 or formed in a bonded state.

The positive electrode plate 10 or the negative electrode plate 20 drawn out from the support unit 300 may be transported toward the cutting unit 400 in a strip-shaped state via a plurality of guide rollers.

The strip-shaped positive plate 10 or negative electrode plate 20 transported toward the cutting unit 400 may be cut into a shape set by the cutting unit 400 .

The cutting unit 400 includes a first cutting member (not shown) for cutting the strip-shaped positive electrode plate 10 in a set shape and another second cutting member (not shown) for cutting the strip-shaped negative electrode plate 20 in a set shape ( not shown) are respectively provided. The first cutting member and the second cutting member have a configuration in which power is received from a driving unit (not shown) to be lifted, and may include a blade corresponding to the set shape of the positive electrode plate 10 or the negative electrode plate 20. . Since the configuration of the first cutting member and the second cutting member as described above is a configuration that can be easily performed by those skilled in the art, detailed descriptions thereof are omitted in one embodiment of the present invention to avoid obscuring the subject matter of the present invention. do.

In addition, as shown in FIG. 3, the cutting unit 400 includes a first seating block 410, a second separation block 420, a second seating block 430, and a second separation block 440. can do.

The first seating block 410 is provided below the first cutting member for cutting the positive electrode plate 10, and has a configuration capable of moving up and down by receiving power from a driving unit (not shown). That is, the first seating block 410 is in contact with the bottom surface of the positive electrode plate 10 supplied in a strip shape to perform a supporting role, and when the positive electrode plate 10 is cut by the first cutting member, the cut positive electrode plate 10' ) while adsorbing it.

For reference, the first seating block 410 has a configuration to adsorb the cut positive electrode plate 10' by a vacuum adsorption method.

The first separation block 420 is disposed on the front upper side of the first seating block 410, and separates the positive plate 10' placed on the first seating block 410 from the first seating block 410. play a role in

That is, the first separation block 420 can be said to be a component for transferring the positive electrode plate 10' placed in an adsorbed state to the first seating block 410 to the next process, and in addition, the first seating block 420 It can be said to be a component that allows another positive plate 10' cut by the first cutting member to be placed on 410.

The first separation block 420 receives power from a driving unit (not shown) and is movable in a linear and vertical direction, and can adsorb the cut positive electrode plate 10' in a vacuum suction method.

The second seating block 430 is provided below the second cutting member for cutting the negative electrode plate 20, and has a configuration capable of moving up and down by receiving power from a driving unit (not shown). That is, the second seating block 430 is in contact with the bottom surface of the negative electrode plate 20 supplied in a strip shape to perform a supporting role, and when the negative electrode plate 20 is cut by the second cutting member, the cut negative electrode plate 20' ) while adsorbing it.

For reference, the second seating block 430 also has a configuration to adsorb the negative electrode plate 20' cut by a vacuum adsorption method.

The second separation block 440 is disposed on the front upper side of the second seating block 430, and separates the negative electrode plate 10' placed on the second seating block 430 on the second seating block 430. play a role in

That is, the second separation block 440 can be referred to as a component for transporting the negative electrode plate 20' placed in a state of adsorption to the second seating block 430 to the next process, and in addition, the second seating block 430 It can be referred to as a component that allows another negative electrode plate 20' cut by the second cutting member to be placed on 430.

The second separation block 440 receives power from a driving unit (not shown) and is movable in a linear and vertical direction, and can adsorb the cut cathode plate 20' in a vacuum adsorption method.

As shown in FIGS. 3 and 4 , the transfer unit 500 includes a positive electrode plate 10' adsorbed to the first separation block 420 or a negative electrode plate 20' adsorbed to the second separation block 440 . It may include a transfer block 510 that receives the transfer and transfers it to the bonding part 600 .

The transfer block 510 has a configuration capable of moving in a straight line and a vertical direction, and similarly has a configuration to adsorb the positive electrode plate 10' or the negative electrode plate 20' in a cut state by a vacuum adsorption method.

The transfer block 510 may be transferred in a linear direction and disposed to face the first seating block 410 when a process of attaching the cut positive electrode plate 10' to one surface of the pouch P is performed. In this case, the cut positive plate 10' is delivered from the first separation block 420. At this time, the first separation block 420 adsorbing the cut positive plate 10' may be moved toward the upper surface of the transfer block 510 to transfer the cut positive plate 10'.

In addition, the transfer block 510 may be transferred in a straight direction and disposed facing the second seating block 430 when a process of attaching the cut negative electrode plate 20' to one surface of the pouch P is performed. there is. In this case, the cut negative plate 20' is delivered from the second separation block 440. At this time, the second separation block 440 adsorbing the cut negative electrode plate 20' may be moved toward the upper surface of the transfer block 510 to transfer the cut negative electrode plate 20'.

As shown in FIGS. 4 and 5, the bonding portion 600 receives the positive electrode plate 10' or the negative electrode plate 20' adsorbed by the transfer block 510 and connects one surface of the pouch P to the other. Pressing block 610 to contact; and is provided to be able to move up and down from the lower part of the pouch P transported in a belt-shaped state, and the pressure block 610 holds the pouch P in a state in which the positive electrode plate 10' or the negative electrode plate 20' is adsorbed. A support block 620 supporting the other side of the pouch P when descending toward the pouch P may include a.

As described above, the pressing block 610 may receive the positive plate 10' or the negative plate 20' placed on the upper surface of the transfer block 510. At this time, the transfer block 510 may move in a straight line and a vertical direction in the direction in which the pressure block 610 is disposed. For reference, in one embodiment of the present invention, the pressing block 610 is shown in the drawing as receiving the negative electrode plate 20' placed on the transfer block 510.

The pressure block 610 may also adsorb the positive electrode plate 10' or the negative electrode plate 20' in a vacuum suction method. In addition, it has a configuration that is lifted by receiving power from a driving unit (not shown).

In addition, the pressure block 610 is heated by a heating means (not shown) to maintain the set temperature in order to bond the positive electrode plate 10' or the negative electrode plate 20' cut by the thermal fusion method to one surface of the pouch P. can

Meanwhile, a plurality of pressing blocks 610 may be provided on the rotation table at intervals from each other. Accordingly, the plurality of pressing blocks 610 can sequentially receive the positive electrode plate 10' or the negative electrode plate 20' transferred from the transfer block 510 while being rotated in one direction or the other direction.

As shown in FIG. 5, the support block 620 is located at a position corresponding to a region where the cut positive electrode plate 10' or negative electrode plate 20' is to be contacted in the area where the belt-shaped pouch P is transported. is placed on

The support block 620 is also configured to be lifted by receiving power from a driving unit (not shown), and the pressure block 610 is raised toward the other side of the pouch P before being in contact with one side of the pouch P. The bottom of (P) can be supported.

When the support block 620 operates prior to the pressure block 610 and contacts the other surface of the pouch P, the pressure block 610 adsorbing the cut positive plate 10' or negative plate 20' descends. It may be in contact with one surface of the pouch (P).

Then, the pressure block 610 and the support block 620 come into contact with each other with the pouch P interposed therebetween, and in this process, the cut positive electrode plate P or negative electrode plate 20' is attached to the pouch P. Can be bonded to one side.

The support block 620 may also be heated by a heating means (not shown) to maintain the set temperature in order to bond the positive plate 10' or the negative plate 20' cut by the heat welding method to one surface of the pouch P. .

When the pouch P and the cut positive plate 10' or negative plate 20' are bonded to each other, the pressure block 610 is raised and then another positive plate 10' is moved from the transfer block 510. Alternatively, it may be rotated and transferred to receive the negative electrode plate 20'.

For reference, FIG. 5 illustrates that the cut negative electrode plate 20' is bonded to one surface of the pouch P, but is not limited thereto. For example, the cut positive plate 10' may be bonded to one surface of the pouch P, or the cut positive plate 10' or negative plate 20' may be alternately selected and bonded to the pouch P and one surface. there is.

As shown in FIGS. 6 and 7, the electrode plate bonding device 100 of the pouch-type primary battery configured as described above has both sides of the strip-shaped pouch P drawn out from the pouch supply unit 200. may be arranged separately.

That is, the support part 300, the cutting part 400, the conveying part 500, and the bonding part 600 constituting the electrode plate bonding device 100 are formed into a pouch (P) supplied from the pouch supply unit 200. ) is preferably disposed on both sides of the base.

The electrode plate bonding device 100 disposed on one side of the pouch P performs a process of bonding the cut positive electrode plate 10' or negative electrode plate 20' to one side of the pouch P in the width direction, and The electrode plate bonding device 100 disposed on the other side of (P) may perform a process of bonding the cut positive electrode plate 10' or negative electrode plate 20' to the other side of the pouch P in the width direction.

For example, the cut positive electrode plate 10' may be bonded to one area of the pouch P in the width direction, and the cut negative electrode plate 20' may be bonded to the other area of the pouch P in the width direction. Therefore, the positive plate 10' and the negative plate 20' are not shown by simply folding the pouch P in which the positive plate 10' and the negative plate 20' cut in a predetermined area are bonded together in half in a post process. Since they are stacked on each other with an unopened separator interposed therebetween, the manufacturing process of the pouch-type primary battery can be made more simple and productivity and work convenience can be improved.

An electrode plate bonding device 100 for a pouch-type primary battery according to an embodiment of the present invention automatically attaches a positive electrode plate 10' or a negative electrode plate 20' cut in a set shape on one side of a pouch P. Since a configuration capable of being selectively transported and bonded to the pouch P is provided, productivity of the primary battery can be increased by accelerating the process of manufacturing the pouch type primary battery.

In addition, the electrode plate bonding device 100 of the pouch-type primary battery according to the present invention includes a process of bonding the positive electrode plate 10' to the pouch P and a process of bonding the negative electrode plate 20' to the pouch P. Since it can be performed at the same time in a certain place in the workplace, the work space can be simplified.

Although specific embodiments according to the present invention have been described so far, various modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments and should not be defined, but should be defined by not only the scope of the claims to be described later, but also those equivalent to the scope of these claims.

100: electrode plate bonding device
200: pouch supply unit
300: support
400: cutting part
410: first seating block
420: first separation block
430: second seating block
440: second separation block
500: transfer unit
510: transfer block
600: joint
610: press block
620: support block
10: positive plate 20: negative plate
P: Pouch

Claims (6)

a pouch supply unit supplying pouches having a predetermined area;
a support portion disposed on one side of the pouch supply unit and rotatably supporting the positive electrode plate and the negative electrode plate wound in a roll shape;
a cutting unit provided at a front end side of the support unit and cutting the positive or negative electrode plate drawn out from the support unit into a set shape;
a transfer unit adsorbing the positive electrode plate or the negative electrode plate cut by the cutting unit and transporting the positive electrode plate or the negative electrode plate in the direction in which the pouch is disposed; and
An electrode plate bonding device for a pouch-type primary battery, characterized in that it comprises a; bonding unit that adsorbs and transfers the positive electrode plate or the negative electrode plate transported by the transfer unit to adhere to one surface of the pouch.
According to claim 1,
The cutting part,
a first seating block on which the positive electrode plate cut into a set shape is placed;
a first separation block disposed above the first seating block and moving in a straight and vertical direction to separate the positive plate placed on the first seating block from the first seating block;
a second seating block disposed on one side of the first seating block and on which the negative electrode plate cut into a set shape is placed; and
A pouch-type primary comprising a; disposed above the second seating block and moved in a straight and vertical direction to separate the negative electrode plate placed on the second seating block from the second seating block. Battery electrode plate bonding device.
According to claim 2,
The transfer unit,
It is moved in a straight line and vertical direction and is disposed facing the first seating block or the second seating block,
Electrode plate bonding device for a pouch-type primary battery, comprising: a transfer block to receive the positive electrode plate adsorbed to the first separation block or to receive the negative electrode plate adsorbed to the second separation block.
According to claim 3,
The bonding part,
a pressure block for receiving the positive electrode or negative electrode adsorbed by the transfer block and bringing the positive or negative electrode plate into contact with one surface of the pouch; and
An electrode plate bonding device for a pouch-type primary battery comprising a; support block provided to be liftable from the lower part of the pouch and supporting the other surface of the pouch when the press block is lowered toward the pouch .
According to claim 4,
The pressure block is an electrode plate bonding device for a pouch-type primary battery, characterized in that provided in plurality at intervals from each other on the rotation table.
According to claim 5,
The electrode plate bonding device of a pouch-type primary battery, characterized in that the support part, the cutting part, the conveying part, and the bonding part are respectively disposed on both sides of the pouch supplied from the pouch supply unit.

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