KR102536549B1 - Degassing device for manufacturing secondary battery - Google Patents

Abstract

A degassing device for manufacturing a secondary battery is disclosed. In the degassing device for manufacturing a secondary battery according to the present invention, a degassing process for discharging gas accumulated in a secondary battery cell is performed therein, and a plurality of degassing chamber units spaced apart from each other, and a degassing chamber unit. A handling unit that is disposed adjacent to the degassing chamber unit, draws in the secondary battery cells into the degassing chamber unit, and takes out the secondary battery cells from the degassing chamber unit; and a buffer unit for temporarily storing the secondary battery cells and the secondary battery cells taken out of the chamber unit for degassing.

Description

Degassing device for manufacturing secondary battery {Degassing device for manufacturing secondary battery}

The present invention relates to a degassing device for manufacturing a secondary battery, and more particularly, to a degassing device for manufacturing a secondary battery capable of reducing work time by reducing congestion and bottlenecks in the logistics section.

In general, a secondary cell converts chemical energy into electrical energy to supply power to an external circuit, and when it is discharged, it receives external power and converts electrical energy into chemical energy to store electricity. points to Such a secondary battery is also commonly referred to as a capacitor.

Recently, as the utility of electric vehicles has been highlighted and commercialization of electric vehicles has been approaching, the standard of secondary batteries applied only to existing small electronic products tends to be considerably larger.

These secondary batteries may be variously classified according to their shapes. For example, secondary batteries may be classified into prismatic structures, cylindrical structures, and pouch-type structures.

The cylindrical secondary battery is covered with a can, and this can is made of iron plated with nickel.

A secondary battery with a pouch-type structure uses a pouch as an exterior material that surrounds an electrode laminate, and the secondary battery with this pouch-type structure can have higher unit weight and energy density per volume, and can be made thinner and lighter. There is an advantage to doing it.

A pouch-type secondary battery is a pouch-type secondary battery that puts an electrode assembly including a cathode, a separator, and a cathode in a pouch-type packaging material, injects electrolyte, seals the edges, and through a charging and discharging step and a degassing step to discharge gas. packaged

In performing this packaging step, there is a difference in the working speed of an electrode tab welding device, an electrolyte injection device, a sealing device, a degassing device, etc., which affects the overall packaging process speed.

However, in the case of the degassing apparatus according to the prior art, congestion and bottlenecks are caused in the process of transferring the secondary battery cells to the degassing chamber where the degassing is performed, thereby reducing the production efficiency per unit time of the secondary battery cells.

Republic of Korea Patent Publication No. 10-2011-0039012, (2011.04.15.)

An object to be solved by the present invention is to provide a degassing device for manufacturing secondary batteries capable of preventing congestion and bottlenecks from occurring in the process of transferring secondary battery cells to a chamber for degassing.

According to one aspect of the present invention, a degassing process for discharging gas accumulated in a secondary battery cell is performed therein, and a plurality of degassing chamber units spaced apart from each other; a handling unit that is disposed adjacent to the degassing chamber unit and draws the secondary battery cell into the degassing chamber unit and withdraws the secondary battery cell from the degassing chamber unit; and a buffer unit disposed adjacent to the degassing chamber unit and temporarily storing the secondary battery cells to be introduced into the degassing chamber unit and the secondary battery cells taken out of the degassing chamber unit. A degassing device may be provided.

The buffer unit may include a buffer support disposed spaced apart from the degassing chamber unit; a discharge buffer module disposed on an upper surface of the buffer support and storing the secondary battery cell drawn out from the degassing chamber unit; and an input buffer module disposed on an upper surface of the buffer support, spaced apart from the discharge buffer module, and storing the secondary battery cells to be input into the degassing chamber unit.

The buffer module for discharge and the buffer module for input are provided in plurality, and the plurality of buffer modules for discharge and the buffer module for input may be disposed alternately.

The discharge buffer module includes a first discharge buffer module; and a second buffer module for discharge disposed spaced apart from the first buffer module for discharge, wherein the buffer module for input includes: a first buffer module for input; and a second buffer module for input disposed spaced apart from the first buffer module for input.

A first input buffer module is positioned between the first discharge buffer module and the second discharge buffer module, and a second discharge buffer module is positioned between the first input buffer module and the second input buffer module. A buffer module may be located.

Each of the discharge buffer module and the input buffer module includes a buffer actuator unit coupled to the buffer support; and a pair of buffer gripper parts that are connected to the buffer actuator part and are moved in a mutually approaching direction by the buffer actuator part to grip the secondary battery cell.

Each of the discharge buffer module and the input buffer module is supported by the buffer gripper unit, and further includes a buffer cell presence detection unit for detecting that the secondary battery cell is positioned between the pair of buffer gripper units. can include

The chamber unit for degassing may include a chamber main body having a hollow interior so that the secondary battery cell may be accommodated therein; a chamber door part coupled to the chamber body part to be relatively movable and opening and closing the inside of the chamber body part; and a pocket portion supported by the chamber door portion and holding the secondary battery cell.

The pocket part may include a pocket base part coupled to the chamber door part; a fixed gripper part for a pocket coupled to the base part for a pocket; a mobile gripper unit for a pocket coupled to the base unit for a pocket to be relatively movable and moving in a direction approaching the fixed gripper unit for a pocket to grip the secondary battery cell; and an elastic body for gripping that is coupled to the fixed gripper for pocket and the movable gripper for pocket and elastically biases the movable gripper for pocket toward the fixed gripper for pocket.

The handling unit may include a support frame for the handling unit; a plurality of handler units gripping the secondary battery cells; and a handler moving unit coupled to the supporting frame unit for the handling unit and connected to the handler unit to move the handler unit.

The handler unit may include a gripping unit for a handler that grips the secondary battery cell; and a handler up/down moving unit coupled to the handler moving unit and connected to the handler gripping unit to move the handler gripping unit up/down.

The gripping unit for the handler may include a gripping frame unit for the handler coupled to the up/down moving unit of the handler; an actuator unit for the handler coupled to the gripping frame unit for the handler; and a pair of gripper parts for the handler that are connected to the actuator part for the handler and are rotated by the actuator part for the handler to grip the secondary battery cell.

The handler gripping unit may further include a handler cell presence detection unit supported by the handler gripping frame unit and detecting that the secondary battery cell is positioned between the pair of handler gripper units.

The gripper for the handler may further include a position detecting unit for the handler that is supported by the gripping frame for the handler and detects whether or not the secondary battery cell is in the proper position.

a cell supply unit disposed adjacent to the handling unit and supplying the secondary battery cells to be subjected to the degassing process to the handling unit; and a cell discharging unit disposed adjacent to the handling unit and receiving the secondary battery cells subjected to the degassing process from the handling unit.

Embodiments of the present invention are disposed adjacent to the degassing chamber unit and have a buffer unit for temporarily storing the secondary battery cell to be drawn into the degassing chamber unit and the secondary battery cell taken out of the degassing chamber unit, so that the secondary battery cell It is possible to prevent congestion and bottlenecks from occurring in the process of transferring the to the degassing chamber, and accordingly, the production quantity per unit time of the secondary battery can be increased.

1 is a plan view illustrating a degassing apparatus for manufacturing a secondary battery according to an embodiment of the present invention.
Figure 2 is a front view of Figure 1;
FIG. 3 is a view showing the buffer unit of FIG. 1;
FIG. 4 is a view showing the buffer unit of FIG. 2 .
5 is a view showing the buffer module for discharge of FIG. 4;
6 is a view showing the operation of the discharge buffer module of FIG. 5;
FIG. 7 is a view showing the chamber unit for degassing of FIG. 1;
8 is a perspective view illustrating the pocket portion of FIG. 7 .
9 is a perspective view of the pocket portion of FIG. 8 viewed from another direction.
Figure 10 is a side view of Figure 8;
FIG. 11 is a diagram illustrating a handler unit of FIG. 2 .
FIG. 12 is an enlarged view of part 'C' of FIG. 11 .
FIG. 13 is a diagram illustrating an operation of an actuator unit for a handler of FIG. 12 .

In order to fully understand the present invention and its operational advantages and objectives achieved by the practice of the present invention, reference should be made to the accompanying drawings illustrating preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings. However, in describing the present invention, descriptions of already known functions or configurations will be omitted to clarify the gist of the present invention.

1 is a plan view showing a degassing apparatus for manufacturing a secondary battery according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, FIG. 3 is a view showing a buffer unit of FIG. 1, and FIG. 2 is a view showing the buffer unit, FIG. 5 is a view showing the discharge buffer module of FIG. 4, FIG. 6 is a view showing the operation of the discharge buffer module of FIG. 5, and FIG. A drawing showing a chamber unit for degassing, FIG. 8 is a perspective view of the pocket portion of FIG. 7, FIG. 9 is a perspective view of the pocket portion of FIG. 8 viewed from another direction, FIG. 10 is a side view of FIG. 8, and FIG. FIG. 2 is a view showing the handler unit, FIG. 12 is an enlarged view of part 'C' of FIG. 11 , and FIG. 13 is a view showing the operation of the actuator unit for the handler of FIG. 12 . In FIG. 1, the handling unit is indicated by a dotted line for convenience of illustration.

In this embodiment, a pouch-type secondary battery cell (S) is used, and this pouch-type secondary battery cell (S) includes an electrode assembly (not shown) and a pouch-type case (not shown).

Although not shown in detail for convenience of drawing, the electrode stack is configured in a form in which one or more positive electrode plates and one or more negative electrode plates are disposed with a separator interposed therebetween and stored in a pouch-type case.

An electrode laminate is accommodated in the inner space of the pouch-type case, and an electrolyte (not shown) such as liquid, solid, or gel type is filled according to the type of the pouch-type secondary battery cell S.

The pouch-type case according to the present embodiment includes an upper sheet (not shown) and a lower sheet (not shown), and the upper sheet and the lower sheet are bonded by thermal fusion or the like.

As shown in FIG. 1, the degassing apparatus for manufacturing a secondary battery according to the present embodiment includes a degassing chamber unit (100a, 100b, 100c, 100d) in which a degassing process is performed inside, and a handling unit. 200, a buffer unit 300, a cell supply unit 400 and a cell discharge unit 500.

The cell supply unit 400 is disposed adjacent to the handling unit 200 . The cell supply unit 400 supplies the secondary battery cells S to be subjected to the degassing process to the handling unit 200 . The cell supply unit 400 may include a conveyor unit (not shown) for transporting a tray (not shown) on which the secondary battery cells S are loaded.

The cell discharge unit 500 is disposed adjacent to the handling unit 200 . The cell discharging unit 500 receives the secondary battery cells S on which the degassing process has been performed from the handling unit 200 and transfers them to the next process. The cell discharge unit 500 may include a conveyor unit (not shown) for transporting a tray (not shown) on which the secondary battery cells S are loaded.

Inside the degassing chamber units 100a, 100b, 100c, and 100d, a degassing process of discharging gas accumulated in the secondary battery cell S is performed. The chamber units 100a, 100b, 100c, and 100d for degassing are provided in plural numbers and are spaced apart from each other. In this embodiment, the degassing chamber units 100a, 100b, 100c, and 100d include a first degassing chamber unit 100a, a second degassing chamber unit 100b, a third degassing chamber unit 100c, and a fourth degassing chamber unit 100c. Four of the degassing chamber units 100d are provided. Accordingly, the scope of the present invention is not limited, and the degassing chamber units 100a, 100b, 100c, and 100d may be provided in various numbers. The above-described first degassing chamber unit 100a, second degassing chamber unit 100b, third degassing chamber unit 100c, and fourth degassing chamber unit 100d have the same structure.

As shown in FIG. 7, the chamber units 100a, 100b, 100c, and 100d for degassing include a chamber body 110 having a hollow interior so that a secondary battery cell S can be accommodated therein; The chamber door part 120 coupled to the chamber body part 110 to be relatively movable and opening and closing the inside of the chamber body part 110, supported by the chamber door part 120, and holding the secondary battery cell S It includes a pocket portion 130 to do.

The chamber main body 110 is provided in a rectangular box shape. A vacuum pump (not shown) capable of forming the inside of the chamber body 110 in a vacuum atmosphere is provided.

The chamber door part 120 is coupled to the chamber body part 110 to be relatively movable. The chamber door part 120 moves relative to the chamber body part 110 to open and close the inside of the chamber body part 110 .

The pocket part 130 is coupled to the chamber door part 120 and is disposed outside the chamber body part 110 and inside the chamber body part 110 according to the movement of the chamber door part 120 . The pocket portion 130 grips the secondary battery cell (S).

As shown in FIGS. 7 to 10 , the pocket portion 130 includes a pocket base portion 131 coupled to the chamber door portion 120 and a pocket fixed gripper coupled to the pocket base portion 131. The movable gripper part for a pocket that is coupled to the part 132 and the base part 131 for a pocket to be relatively movable and is moved in a direction approaching the fixed gripper part for a pocket 132 to grip the secondary battery cell (S). 133, an elastic body for gripping that is coupled to the fixed gripper for pocket 132 and the moving gripper for pocket 133 and elastically biases the moving gripper for pocket 133 in the direction of the fixed gripper for pocket 132 (134).

The pocket base part 131 is coupled to the chamber door part 120. A guide rail 131a to which the movement gripper 133 for the pocket is slidably coupled to the base portion 131 for the pocket is provided. The fixed gripper part 132 for the pocket is coupled to the upper surface of the base part 131 for the pocket.

A sliding block 133a coupled to the guide rail 131a to be slidably movable is provided at the bottom of the mobile gripper part 133 for the pocket. The movable gripper part 133 for the pocket moves in a direction approaching and away from the fixed gripper part 132 for the pocket along the guide rail 131a. The moving gripper part 133 for the pocket moves toward the fixed gripper part 132 for holding the secondary battery cell S together with the fixed gripper part 132 for the pocket.

In addition, the mobile gripper part 133 for the pocket is provided with a protruding bar 133b penetrating the fixed gripper part 132 for the pocket. The protruding bar 133b is disposed to face a separate pressing device (not shown) for releasing gripping disposed adjacent to the degassing chamber units 100a, 100b, 100c, and 100d. The pressing device (not shown) for releasing the grip pushes the protruding bar 133b at the position where the chamber door part 120 is moved to open the chamber body part 110, and moves the mobile gripper part 133 for the pocket. By separating from the fixed gripper unit 132 , the gripping of the secondary battery cell S held in the pocket unit 130 may be released.

One end of the gripping elastic body 134 is coupled to the fixed gripper part 132 for the pocket and the other end is coupled to the moving gripper part 133 for the pocket. The gripping elastic body 134 elastically biases the moving gripper part 133 for the pocket toward the fixed gripper part 132 for the pocket. Accordingly, when the pressing device (not shown) for gripping release is released, the moving gripper part 133 for the pocket is moved toward the fixed gripper part 132 for the pocket by the elastic force of the elastic body 134 for gripping.

Meanwhile, the handling unit 200 is disposed adjacent to the degassing chamber units 100a, 100b, 100c, and 100d. The handling unit 200 transfers the secondary battery cells S supplied by the cell supply unit 400 to the degassing chamber units 100a, 100b, 100c, and 100d, and the degassing chamber units 100a, 100b, 100c, In 100d), the secondary battery cells S are taken out and transferred to the cell discharging unit 500 .

The handling unit 200 according to the present embodiment includes a handling unit support frame part 210, a plurality of handler parts 220a and 220b holding the secondary battery cells S, and a handling unit support frame part ( 210) and is connected to the handler units 220a and 220b to move the handler units 220a and 220b.

The handler units 220a and 220b hold the secondary battery cell S in order to move the secondary battery cell S. In this embodiment, the handler units 220a and 220b include a first handler unit 220a and a second handler unit 220b. The first handler unit 220a and the second handler unit 220b have the same structure.

As shown in FIG. 2 , the first handler part 220a on the left is moved within zone 'A' and the second handler part 220b on the right is moved within zone 'B'. Therefore, among the secondary battery cells S supplied from the cell supply unit 400, the secondary battery cells S to be put into the third degassing chamber unit 100c and the fourth degassing chamber unit 100d are the first handlers. After being temporarily stored in the buffer unit 300 by the unit 220a, it is transferred to the third degassing chamber unit 100c and the fourth degassing chamber unit 100d by the second handler unit 220b. .

Similarly, among the secondary battery cells (S) to be delivered to the cell discharging unit 500 after the degassing process is completed, the secondary battery cells ( S) is transferred to the buffer unit 300 by the first handler unit 220a, temporarily stored, and then transferred to the cell discharging unit 500 by the second handler unit 220b.

As described above, the degassing apparatus for manufacturing a secondary battery according to the present embodiment includes a plurality of handler parts 220a and 220b that are moved by dividing the movement zone into categories, so that the plurality of handler parts 220a and 220b can move within the same zone. It is possible to prevent congestion and bottlenecks from occurring during the movement process.

As shown in FIGS. 11 to 13 , the handler parts 220a and 220b according to the present embodiment include a handler gripping part 221 for holding the secondary battery cell S and a handler moving part 230. and a handler up/down movement unit 228 connected to the handler gripping unit 221 to move the handler gripping unit 221 up/down.

The handler gripping unit 221 includes a handler gripping frame unit 222 coupled to the handler up/down movement unit 228 and a handler actuator unit 223 coupled to the handler gripping frame unit 222. , a pair of handler gripper parts 224 connected to the handler actuator part 223 and rotated by the handler actuator part 223 to hold the secondary battery cell S, and the handler gripper part 224 It is supported by the handler cell presence detection unit 225 that detects the position of the secondary battery cell S between the pair of gripper units 224 for the handler and the holding frame unit 222 for the handler. A position detecting unit 226 for a handler detecting whether the secondary battery cell S is in the correct position is included.

The actuator unit 223 for the handler is coupled to the gripping frame unit 222 for the handler. In this embodiment, the actuator unit 223 for the handler is formed of a rotary cylinder that rotates the gripper unit 224 for the handler.

The gripper part 224 for the handler is rotatably coupled to the actuator part 223 for the handler. In this embodiment, a pair of gripper parts 224 for handlers are provided, and the pair of gripper parts 224 for handlers grip and release the secondary battery cell S according to a rotation angle.

The cell presence detection unit 225 for the handler is coupled to the holding frame unit 222 for the handler. The handler cell presence/absence detection unit 225 emits a detection beam (laser, etc.) and receives the reflected detection beam to detect the secondary battery cell (S) between the pair of handler gripper units 224. A cell presence detection sensor (not shown) for the handler and a cell presence detection sensor (not shown) for the handler fastened to the holding frame 222 for the handler and equipped with a cell presence detection sensor (not shown) for the handler ( 225b).

The position detection unit 226 for the handler is coupled to the holding frame unit 222 for the handler. The position detecting unit 226 for the handler detects whether the secondary battery cell S gripped by the gripper unit 224 for the handler is in the correct position. In this embodiment, a plurality of position detectors 226 for handlers are provided and disposed at the corner regions of the secondary battery cells S, respectively. The position detection unit 226 for the handler emits a sensing beam (laser, etc.) to the corner regions of the secondary battery cell S, and then receives the reflected sensing beam. The information received by each of the position detection units 226 for handlers located in the corner areas is transmitted to a separate control unit (not shown) so that the secondary battery cell S held by the gripper unit 224 for handlers is distorted or It is judged whether it is in the right position without tilting.

The above-described position detection unit 226 for the handler includes a position detection sensor (not shown) for emitting a detection beam (laser, etc.) and receiving a reflected detection beam, and a position detection sensor equipped with the position detection sensor. A position detection bracket 226b is included.

The handler up/down moving unit 228 is coupled to the handler moving unit 230 . The handler up/down moving unit 228 is connected to the handler gripping unit 221 to move the handler gripping unit 221 up/down.

The handler up/down movement unit 228 according to the present embodiment includes an up/down movement block unit 228a coupled to the gripping frame unit 222 for the handler and an up/down movement block unit connected to the up/down block unit. An up/down movement guide unit (not shown) for guiding 228a, and an up/down movement driving unit 228c that is connected to the up/down movement block unit 228a and moves the up/down movement block unit 228a. includes In this embodiment, the up/down driving unit 228c is formed of a ball screw type linear motor.

The handler moving unit 230 is coupled to and supported by the support frame unit 210 for the handling unit. The handler moving unit 230 is connected to the handler units 220a and 220b to independently move the handler units 220a and 220b. In this embodiment, the handler moving unit 230 may be formed of a linear motor.

Meanwhile, as shown in FIGS. 1 and 2 , the buffer unit 300 is disposed between the chamber units 100a, 100b, 100c, and 100d for degassing. In this embodiment, the buffer unit 300 includes secondary battery cells S to be introduced into the degassing chamber units 100a, 100b, 100c, and 100d and secondary cells drawn out of the degassing chamber units 100a, 100b, 100c, and 100d. The battery cell (S) is temporarily stored.

Of the secondary battery cells S supplied from the cell supply unit 400, the secondary battery cells S to be put into the third degassing chamber unit 100c and the fourth degassing chamber unit 100d are selected from the first handler unit ( After being transferred to the buffer unit 300 by 220a and temporarily stored, it is transferred to the third degassing chamber unit 100c and the fourth degassing chamber unit 100d by the second handler unit 220b.

Similarly, among the secondary battery cells S to be delivered to the cell discharge unit 500 after the degassing process is completed, the secondary battery cells S drawn from the first degassing chamber unit 100a and the second degassing chamber unit 100b ) is transferred to the buffer unit 300 by the first handler unit 220a, temporarily stored, and then transferred to the cell discharging unit 500 by the second handler unit 220b.

As shown in FIGS. 3 to 6 , the buffer unit 300 includes a buffer support 310 disposed spaced apart from the degassing chamber units 100a, 100b, 100c, and 100d, and a buffer support 310 ) Disposed on the upper surface of the degassing chamber units (100a, 100b, 100c, 100d) of the discharge buffer module (320a, 320b) for storing the secondary battery cells (S) drawn out from, and the buffer support (310) It is disposed on the upper surface and is located away from the discharge buffer modules 320a and 320b, and the input buffer module 330a stores the secondary battery cells S to be input into the degassing chamber units 100a, 100b, 100c, and 100d. , 330b).

The discharge buffer module (320a, 320b) is disposed on the upper surface of the buffer support (310). The discharge buffer modules 320a and 320b temporarily store the secondary battery cells S drawn from the degassing chamber units 100a, 100b, 100c and 100d. In this embodiment, the discharge buffer module (320a, 320b) is spaced apart from the first discharge buffer module (320a) and the first discharge buffer module (320a), as shown in Figs. It includes a second discharge buffer module (320b) disposed.

The input buffer modules 330a and 330b are disposed on the upper surface of the buffer support 310 and are spaced apart from the discharge buffer modules 320a and 320b. The input buffer modules 330a and 330b store secondary battery cells S to be input into the degassing chamber units 100a, 100b, 100c, and 100d.

As shown in FIGS. 3 and 4 , the input buffer modules 330a and 330b are spaced apart from the first input buffer module 330a and the second input buffer module 330a. It includes a buffer module for input (330b).

In the present embodiment, the discharge buffer modules 320a and 320b and the input buffer modules 330a and 330b are alternately disposed. That is, the first input buffer module 330a is positioned between the first discharge buffer module 320a and the second discharge buffer module 320b, and the first input buffer module 330a and the second input buffer module 330a. A second buffer module for discharge (320b) is positioned between the buffer modules for discharge (330b).

In this embodiment, the buffer modules for input (330a, 330b) and the buffer modules for discharge (320a, 320b) have almost the same structure except for their different roles. Hereinafter, for convenience of description, the first buffer module for discharge. The structure of only 320a will be described.

As shown in FIGS. 5 and 6, the first discharge buffer module 320a is connected to the buffer actuator unit 321 coupled to the buffer support 310 and the buffer actuator unit 321, A pair of buffer gripper parts 322 that are moved in a mutually approaching direction by the buffer actuator part 321 to hold the secondary battery cell S, and a pair of buffer gripper parts 322 supported by the buffer gripper part 322 A buffer cell presence detection unit 323 detecting that the secondary battery cell S is positioned between the buffer gripper units 322 is included.

The actuator unit 321 for the buffer is coupled to the support 310 for the buffer. In this embodiment, the actuator unit 321 for the buffer is composed of a pressure cylinder that moves the gripper unit 322 for the buffer.

The gripper part 322 for the buffer is coupled to the actuator part 321 for the buffer. In this embodiment, the gripper parts 322 for buffers are provided as a pair, and the pair of gripper parts 322 for buffers 322 are moved in the direction of approaching and spaced apart from each other by the actuator part 321 for secondary battery cells. (S) is gripped and gripped.

The buffer cell presence detection unit 323 is supported on each of the buffer gripper units 322 . The buffer cell presence detection unit 323 detects that the secondary battery cell S is positioned between the pair of buffer gripper units 322 .

The buffer cell presence detector 323 according to the present embodiment emits a beam for detection (laser, etc.) and receives the reflected beam for detection so that the secondary battery cell is placed between the pair of gripper parts 322 for the buffer. Detect that (S) is located.

Hereinafter, the operation of the degassing apparatus for manufacturing a secondary battery according to this embodiment will be mainly described with reference to the buffer unit 300 with reference to FIGS. 1 to 13 .

Among the secondary battery cells S supplied from the cell supply unit 400, the secondary battery cells S to be transferred to the first degassing chamber unit 100a and the second degassing chamber unit 100b are selected from the first handler unit ( 220a).

Of the secondary battery cells S supplied from the cell supply unit 400, the secondary battery cells S to be transferred to the third degassing chamber unit 100c and the fourth degassing chamber unit 100d are included in the second handler unit ( 220b), the third degassing chamber unit 100c and the fourth degassing chamber unit 100c are temporarily stored in the first input buffer module 330a and the second input buffer module 330b by the second handler unit 220b. It is transferred to the chamber unit 100d for degassing.

After the degassing process is completed, the secondary battery cells S taken out of the third degassing chamber unit 100c and the fourth degassing chamber unit 100d are transferred to the cell discharging unit 500 by the second handler unit 220b. is forwarded to

After the degassing process is completed, the secondary battery cells (S) taken out of the first degassing chamber unit 100a and the second degassing chamber unit 100b are placed in the first discharge buffer module 320a and the second discharge buffer After being temporarily stored in the module 320b, it is transferred to the cell discharging unit 500 by the second handler unit 220b.

The first handler unit 220a and the second handler unit 220b are formed in the 'A' area shown in FIG. In , the second handler unit 220b is movable within zone 'B'.

Therefore, in the degassing device for manufacturing secondary batteries according to the present embodiment, the movement areas of the handler units 220a and 220b are divided through the buffer unit 300, so that the handler units 220a and 220b are moved within the same area. Congestion and bottlenecks can be prevented from occurring in the process.

In this way, the degassing apparatus for manufacturing a secondary battery according to the present embodiment is disposed adjacent to the degassing chamber units 100a, 100b, 100c, and 100d to be drawn into the degassing chamber units 100a, 100b, 100c, and 100d. By providing a buffer unit 300 for temporarily storing the battery cells S and the secondary battery cells S taken out from the degassing chamber units 100a, 100b, 100c, and 100d, the secondary battery cells S are degassed. It is possible to prevent congestion and bottlenecks from occurring in the process of transferring the battery to the storage chamber, and accordingly, the production quantity per unit time of the secondary battery can be increased.

Although the present embodiment has been described in detail with reference to the drawings, the scope of rights of the present embodiment is not limited to the above-described drawings and description.

As such, the present invention is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations should fall within the scope of the claims of the present invention.

100a, 100b, 100c, 100d: chamber unit for degassing
110: chamber body part 120: chamber door part
130: pocket part 131: pocket base part
132: fixed gripper part for pocket 133: moving gripper part for pocket
134: gripping elastic body 200: handling unit
210: support frame part for handling unit 220a, 220b: handler part
221: gripping part for handler 222: gripping frame part for handler
223: actuator unit for handler 224: gripper unit for handler
225: cell presence detection unit for handler 226: local position detection unit for handler
228: handler up/down moving unit 230: handler moving unit
300: buffer unit 310: support for buffer
320a, 320b: buffer module for discharge 320a: buffer module for first discharge
321: actuator part for buffer 322: gripper part for buffer
323: buffer cell presence detection unit 320b: second discharge buffer module
330a, 330b: input buffer module 330a: first input buffer module
330b: buffer module for second input 400: cell supply unit
500: cell discharge unit S: secondary battery cell

Claims (15)

A plurality of chamber units for degassing, in which a degassing process for discharging gas accumulated in the secondary battery cell is performed, and disposed spaced apart from each other;
a handling unit that is disposed adjacent to the degassing chamber unit and draws the secondary battery cell into the degassing chamber unit and withdraws the secondary battery cell from the degassing chamber unit; and
a buffer unit disposed adjacent to the degassing chamber unit and temporarily storing the secondary battery cell to be introduced into the degassing chamber unit and the secondary battery cell drawn out from the degassing chamber unit;
The buffer unit,
a support for a buffer disposed spaced apart from the chamber unit for degassing;
a discharge buffer module disposed on an upper surface of the buffer support and storing the secondary battery cell drawn out from the degassing chamber unit; and
A degassing device for manufacturing a secondary battery comprising a buffer module disposed on an upper surface of the support for buffer and spaced apart from the buffer module for discharge, and storing the secondary battery cell to be loaded into the chamber unit for degassing. delete According to claim 1,
The discharge buffer module and the input buffer module are provided in plurality, and the plurality of discharge buffer modules and the input buffer module are alternately arranged. . According to claim 1,
The discharge buffer module,
A buffer module for first discharge; and
And a second discharge buffer module disposed spaced apart from the first discharge buffer module,
The input buffer module,
A first input buffer module; and
A degassing device for manufacturing a secondary battery comprising a second input buffer module disposed spaced apart from the first input buffer module. According to claim 4,
A first input buffer module is positioned between the first discharge buffer module and the second discharge buffer module,
A degassing device for manufacturing a secondary battery, characterized in that a second discharge buffer module is positioned between the first input buffer module and the second input buffer module. According to claim 1,
Each of the buffer module for discharge and the buffer module for input,
an actuator unit for the buffer coupled to the support for the buffer; and
A degassing device for manufacturing a secondary battery comprising a pair of buffer gripper parts connected to the buffer actuator part and moving in a mutually approaching direction by the buffer actuator part to grip the secondary battery cell. According to claim 6,
Each of the buffer module for discharge and the buffer module for input,
The degassing device for manufacturing a secondary battery further comprising a buffer cell presence detection unit supported by the buffer gripper unit and detecting that the secondary battery cell is positioned between the pair of buffer gripper units. A plurality of chamber units for degassing, in which a degassing process for discharging gas accumulated in the secondary battery cell is performed, and disposed spaced apart from each other;
a handling unit that is disposed adjacent to the degassing chamber unit and draws the secondary battery cell into the degassing chamber unit and withdraws the secondary battery cell from the degassing chamber unit; and
a buffer unit disposed adjacent to the degassing chamber unit and temporarily storing the secondary battery cell to be introduced into the degassing chamber unit and the secondary battery cell drawn out from the degassing chamber unit;
The chamber unit for degassing,
a chamber main body having a hollow interior so that the secondary battery cell can be accommodated therein;
a chamber door part coupled to the chamber body part to be relatively movable and opening and closing the inside of the chamber body part; and
A degassing device for manufacturing a secondary battery including a pocket part supported by the chamber door part and holding the secondary battery cell. According to claim 8,
The pocket part,
a pocket base portion coupled to the chamber door portion;
a fixed gripper part for a pocket coupled to the base part for a pocket;
a mobile gripper unit for a pocket coupled to the base unit for a pocket to be relatively movable and moving in a direction approaching the fixed gripper unit for a pocket to grip the secondary battery cell; and
The degassing device for manufacturing a secondary battery comprising an elastic body for gripping which is coupled to the fixed gripper for pocket and the movable gripper for pocket and elastically biases the movable gripper for pocket toward the fixed gripper for pocket. A plurality of chamber units for degassing, in which a degassing process for discharging gas accumulated in the secondary battery cell is performed, and disposed spaced apart from each other;
a handling unit that is disposed adjacent to the degassing chamber unit and draws the secondary battery cell into the degassing chamber unit and withdraws the secondary battery cell from the degassing chamber unit; and
a buffer unit disposed adjacent to the degassing chamber unit and temporarily storing the secondary battery cell to be introduced into the degassing chamber unit and the secondary battery cell drawn out from the degassing chamber unit;
The handling unit,
a support frame for a handling unit;
a plurality of handler units gripping the secondary battery cells; and
A degassing device for manufacturing a secondary battery comprising a handler moving part coupled to the supporting frame part for the handling unit and connected to the handler part to move the handler part. According to claim 10,
The handler part,
a gripping part for a handler gripping the secondary battery cell; and
The degassing device for manufacturing a secondary battery includes a handler up/down moving part coupled to the handler moving part and connected to the handler gripping part to move the handler gripping part up/down. According to claim 11,
The gripping part for the handler,
a gripping frame unit for a handler coupled to the handler up/down moving unit;
an actuator unit for the handler coupled to the gripping frame unit for the handler; and
A degassing device for manufacturing a secondary battery comprising a pair of gripper parts for a handler connected to the actuator part for the handler and rotating by the actuator part for the handler to hold the secondary battery cell. According to claim 12,
The gripping part for the handler,
The degassing device for manufacturing a secondary battery is supported by the gripping frame unit for the handler and further includes a cell presence/absence detection unit for the handler that detects that the secondary battery cell is positioned between the pair of gripper units for the handler. According to claim 12,
The gripping part for the handler,
The degassing device for manufacturing a secondary battery is supported by the gripping frame part for the handler and further includes a position detection unit for the handler that detects whether the secondary battery cell is in the proper position. According to claim 11,
a cell supply unit disposed adjacent to the handling unit and supplying the secondary battery cells to be subjected to the degassing process to the handling unit; and
The degassing device for manufacturing a secondary battery further includes a cell discharging unit disposed adjacent to the handling unit and receiving the secondary battery cells subjected to the degassing process from the handling unit.

Images