KR20220010934A - Overhang inspection device for secondary battery and manufacturing system having the same - Google Patents

Abstract

The present invention relates to an overhang inspection device for a secondary battery. The overhang inspection device for a secondary battery, according to the present invention, comprises: a jig unit for a first laminate body for clamping an electrode laminate body provided by alternating a negative electrode and a positive electrode with a separator therebetween; a jig unit for a second laminate body for clamping the electrode laminate body and spaced apart from the jig unit for the first laminate body; an inspection imaging unit for imaging respective electrode laminate bodies clamped to the jig unit for the first laminate body and the jig unit for the second laminate body; a rotation unit for a first laminate body connected to the jig unit for the first laminate body and rotating the electrode laminate body; and a rotation unit for the second laminate body connected to the jig unit for the second laminate body and rotating the electrode laminate body. The present invention quickly and efficiently inspects an electrode laminate body formed by stacking electrodes during the manufacturing process of a secondary battery made in-line to detect an overhang part of the electrodes.

Description

Overhang inspection device for secondary battery and secondary battery manufacturing system having the same

The present invention relates to an overhang inspection apparatus for a secondary battery and a secondary battery manufacturing system having the same, and more particularly, to a short circuit ( Short circuit) to a secondary battery overhang inspection apparatus capable of inspecting whether or not, and to a secondary battery manufacturing system having the same.

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

Such secondary batteries may be variously classified according to the structure of the electrode stack. For example, the secondary battery may be classified into a stack type structure, a winding type structure, a stack/folding type structure, and the like.

Among the various classifications, the stacked structure cuts an electrode, that is, a positive electrode and a negative electrode to a predetermined size, and then places a separator P between the positive electrode E1 and the negative electrode E2 as shown in FIG. It indicates that the electrode laminate M is formed by alternately stacking the positive electrode E1 and the negative electrode E2. This stacking process is performed in a stacking device for secondary batteries. In this electrode stack M, the positive electrode E1 may protrude laterally, and a portion protruding laterally in this way is called an overhang portion.

On the other hand, during the stacking process, some of the electrodes E1 and E2 stacked on the electrode stack M as shown in FIG. Defects may occur. That is, when the distal ends of some of the electrodes E1 and E2 protrude to the side excessively (out of the reference value) compared to the other electrodes E1 and E2, the overhang portions of the protruding electrodes E1 and E2 are in contact with each other. A short circuit (short circuit) may occur, but the secondary battery in which the short circuit (short circuit) of the electrodes E1 and E2 has occurred cannot be used.

The overhang portion of the electrodes E1 and E2 protruding excessively (out of the reference value) is mainly caused by lamination failure. Defects may occur in the entire manufactured product.

Therefore, there is a need to develop an inspection device capable of quickly inspecting the overhang portion of the electrodes E1 and E2 protruding excessively (out of the reference value) during the manufacturing process of the secondary battery made in the inline in the inline equipment.

Republic of Korea Patent Publication No. 10-2013-0105578, (2013.09.25.)

Therefore, the technical problem to be achieved by the present invention is an overhang inspection apparatus for secondary batteries capable of detecting overhang portions of electrodes by quickly and efficiently inspecting an electrode stack formed by stacking electrodes during the manufacturing process of a secondary battery made in inline. And to provide a secondary battery manufacturing system having the same.

According to an aspect of the present invention, a jig unit for a first laminate for clamping the electrode laminate provided by alternating the negative electrode and the positive electrode with a separator therebetween; a second jig unit for a stacked body clamping the electrode stack and spaced apart from the first stacked body jig unit; an inspection imaging unit for capturing images of each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack; a rotation unit for a first laminate connected to the jig unit for the first laminate and configured to rotate the electrode laminate; And it is connected to the jig unit for the second laminate, the secondary battery overhang inspection device including a rotation unit for a second laminate for rotating the electrode laminate may be provided.

The inspection imaging unit may include: a radiation emitting unit emitting radiation toward each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack; and a radiation detector that is disposed to be spaced apart from the radiation emitter and detects the radiation emitted from the radiation emitter.

The inspection imaging unit is connected to the radiation emission unit and the radiation detection unit, and the radiation emission unit and the radiation detection unit are relatively rotated with respect to the first jig unit for a laminate and the jig unit for the first laminate. It may further include a rotating part.

The inspection rotating unit, the rotating unit frame unit; a moving block unit connected to the rotating frame to be movable relative to each other, the radiation emitting unit coupled to the emitting unit; a moving block unit for a detection unit connected to the rotation unit frame unit to be movable relative to each other, and to which the radiation detection unit is coupled; a movement guide for the emission unit coupled to the rotating frame and connected to the moving block for the emission unit to guide the movement of the moving block for the detection unit; a movement guide unit for the detection unit coupled to the frame unit of the rotating unit and connected to the moving block unit for the detection unit to guide the movement of the moving block unit for the emission unit; a moving driving unit coupled to the rotating frame and connected to the moving block for the discharging unit to move the moving block for the discharging unit; and a movement driving unit for the detection unit coupled to the frame unit of the rotation unit and connected to the moving block unit for the detection unit to move the moving block unit for the detection unit.

The rotation unit for the first laminate may include a first tilting unit to which the jig unit for the first laminate is rotatably coupled, and rotates the jig unit for the first laminate.

The rotation unit for the second laminate may include a second tilting unit to which the jig unit for the second laminate is rotatably coupled, and a second tilting unit for rotating the jig unit for the second laminate.

The first rotation unit for a laminate is rotatably coupled to the first jig unit for a laminate with a first axial direction as a rotation axis, and the first jig unit for a laminate with a rotation axis with the first axial direction as a rotation axis a first tilting unit to rotate; a first rotating block unit to which the first tilting unit is coupled; and a first rotating block unit rotatably coupled to a second axis direction intersecting the first axis direction as a center of rotation, and rotating the first rotating block unit with the second axis direction as a center of rotation 1 may include a rotating driving unit.

The second rotation unit for a laminate is rotatably coupled to the second jig unit for a laminated body with a first axial direction as a rotation axis, and the second jig unit for a laminate with the first axial direction as a rotation axis a second tilting unit to rotate; a second rotating block unit to which the second tilting unit is coupled; and the second rotating block unit is rotatably coupled to a second axis direction intersecting the first axis direction as a rotation axis, and the second rotating block unit rotates with the second axis direction as the axis of rotation. 2 may include a rotating driving unit.

According to another aspect of the present invention, a secondary battery crossover device for generating an electrode stack by alternately crossing the negative electrode and the positive electrode with a separator therebetween; and an overhang inspection device for secondary batteries that receives the electrode stack produced by the crossover device for secondary batteries and captures an image of the electrode stack, wherein the overhang inspection device for secondary batteries clamps the electrode stack a first jig unit for a laminate; a second jig unit for a stacked body clamping the electrode stack and spaced apart from the first stacked body jig unit; an inspection imaging unit for capturing images of each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack; a tilting unit for a first stack, which is connected to the jig unit for the first stack and tilts the electrode stack with respect to the imaging unit for inspection; And it is connected to the jig unit for the second laminate, the overhang inspection apparatus for a secondary battery comprising a tilting unit for a second laminate for tilting the electrode laminate with respect to the imaging unit for inspection may be provided.

The inspection imaging unit may include: a radiation emitting unit emitting radiation toward each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack; and a radiation detector that is disposed to be spaced apart from the radiation emitter and detects the radiation emitted from the radiation emitter.

The inspection imaging unit is connected to the radiation emission unit and the radiation detection unit, and the radiation emission unit and the radiation detection unit are relatively rotated with respect to the first jig unit for a laminate and the jig unit for the first laminate. It may include a rotating part.

The inspection rotating unit, the rotating unit frame unit; a moving block unit connected to the rotating frame to be movable relative to each other, the radiation emitting unit coupled to the emitting unit; a moving block unit for a detection unit connected to the rotation unit frame unit to be movable relative to each other, and to which the radiation detection unit is coupled; a movement guide unit for a block coupled to the rotating frame unit and guiding the movement of the moving block unit for the emission unit and the moving block unit for the detection unit; And it is coupled to the frame portion of the rotating unit, it may include a movement driving unit for a block for moving the moving block unit for the emission unit and the moving block unit for the detection unit.

The first rotation unit for the laminate includes a first tilting unit to which the first jig unit for the laminate is rotatably coupled, and a first tilting unit for rotating the jig unit for the first laminate, the rotation unit for the second laminate is the The jig unit for the second stacked body is rotatably coupled, and may include a second tilting part for rotating the jig unit for the second stacked body.

The first rotation unit for a laminate is rotatably coupled to the first jig unit for a laminate with a first axial direction as a rotation axis, and the first jig unit for a laminate with a rotation axis with the first axial direction as a rotation axis a first tilting unit to rotate; a first rotating block unit to which the first tilting unit is coupled; and a first rotating block unit rotatably coupled to a second axis direction intersecting the first axis direction as a center of rotation, and rotating the first rotating block unit with the second axis direction as a center of rotation 1 may include a rotating driving unit.

The second rotation unit for a laminate is rotatably coupled to the second jig unit for a laminated body with a first axial direction as a rotation axis, and the second jig unit for a laminate with the first axial direction as a rotation axis a second tilting unit to rotate; a second rotating block unit to which the second tilting unit is coupled; and the second rotating block unit is rotatably coupled to a second axis direction intersecting the first axis direction as a rotation axis, and the second rotating block unit rotates with the second axis direction as the axis of rotation. 2 may include a rotating driving unit.

According to the present invention, a jig unit for a first laminate for clamping an electrode laminate, a jig unit for a first laminate for clamping the electrode laminate, and a jig unit for a first laminate and a jig unit for a first laminate are spaced apart from the first jig unit for the laminate, and By providing the inspection imaging unit for imaging the respective electrode laminates clamped to the second jig unit for the laminate, it is possible to simultaneously inspect two electrode laminates at a time, thereby reducing the time required for inspection.

1 is a diagram illustrating a state in which electrodes of a secondary battery are stacked.
2 is a diagram illustrating a secondary battery manufacturing system according to a first embodiment of the present invention.
FIG. 3 is a view of the inside of the overhang inspection apparatus for a secondary battery of FIG. 2 as viewed from above.
FIG. 4 is a view showing a jig unit for a first stack and a jig unit for a second stack for clamping the electrode stack transferred by the transfer unit of FIG. 3 and imaged by the imaging unit for inspection.
FIG. 5 is a view showing the inside of the rotating part for inspection of FIG. 3 .
FIG. 6 is a view showing the jig unit for the first laminate of FIG. 3 .
7 is a plan view of FIG. 6 .
FIG. 8 is a side view of FIG. 6 ;
FIG. 9 is a view showing the inside of the radiation emitting part of FIG. 5 .
10 is a view showing the inside of the rotating part for inspection of the secondary battery manufacturing system according to the second embodiment of the present invention.
11 is a diagram illustrating a secondary battery manufacturing system according to a third embodiment of the present invention.
12 is a view of the inside of the overhang inspection apparatus for a secondary battery of FIG. 11 as viewed from above.
13 is a view illustrating a change in a position at which an electrode stack is imaged by rotation of the electrode stack according to the operation of the rotation unit for the first stacked body and the rotation unit for the second stack of FIG. 12 .
14 is a diagram illustrating a secondary battery manufacturing system according to a fourth embodiment of the present invention.
15 is a view of the inside of the overhang inspection apparatus for a secondary battery of FIG. 14 as viewed from above.
16 is a view of the inside of the overhang inspection apparatus for a secondary battery of FIG. 14 as viewed from the front.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects 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 known functions or configurations will be omitted in order to clarify the gist of the present invention.

2 is a view showing a secondary battery manufacturing system according to a first embodiment of the present invention, FIG. 3 is a view of the inside of the overhang inspection apparatus for a secondary battery of FIG. 2 viewed from the top, and FIG. 4 is a view of FIG. A jig unit for a first stack and a jig unit for a second stack for clamping the electrode stack transported by the transfer unit and imaged by the imaging unit for inspection are shown, and FIG. 5 is the inside of the rotating part for inspection of FIG. is a view shown, FIG. 6 is a view showing the jig unit for the first laminate of FIG. 3, FIG. 7 is a plan view of FIG. 6, FIG. 8 is a side view of FIG. 6, and FIG. 9 is the radiation emission of FIG. It is a drawing showing the inside of the part.

The secondary battery manufacturing system according to this embodiment, as shown in FIGS. 2 to 9 , a secondary battery crossing device (SC), an inspection transfer device 200 , and a secondary battery overhang inspection device 100 ), and an external surface inspection device (SD), a Tape Automated Bonding (TAB) device, a transfer device for delivery (SF), and a control unit (not shown).

The secondary battery crossing device SC alternately crosses a negative electrode (not shown) and a positive electrode (not shown) with a separator (not shown) interposed therebetween to produce an electrode stack.

This crossover device for secondary batteries supplies a device body (not shown), a positive electrode supply unit (not shown) for supplying a positive electrode (not shown), a supply unit (not shown) for supplying a negative electrode (not shown), and a separator (not shown). and a supply unit (not shown) and a mobile crossover unit (not shown).

A mobile crossover unit (not shown) forms a place where an anode (not shown), a cathode (not shown), and a separator (not shown) intersect, such a mobile crossover unit (not shown) includes an anode supply (not shown) and a cathode The cross operation is performed while moving between the supply units (not shown).

The inspection transfer device 200 transfers the electrode stack produced in the secondary battery crossover device SC. The inspection transfer device 200 is connected to the secondary battery crossover device SC and the secondary battery overhang inspection device 100 to transfer the electrode stack to the secondary battery overhang inspection device 100 .

In addition, the transport device for inspection 200 is connected to the transport device for delivery (SF) and transfers the transport device (SF) for transferring the overhang inspection is completed electrode stack.

This inspection transfer device 200, as shown in FIGS. 2 to 3, transfers the electrode stack to be imaged by the inspection imaging unit 120 to be described later of the overhang inspection apparatus 100 for secondary batteries. It includes a transfer unit 210 for supply and a transfer unit 220 for discharging disposed adjacent to the overhang inspection apparatus 100 for secondary batteries and transferring the electrode stack imaged by the inspection imaging unit 120 .

The feeding unit 210 for supply is a supply in which a plurality of supply conveyor rollers (not shown) that support the electrode laminate and transport the electrode laminate by rotation, and a supply conveyor roller (not shown) are rotatably coupled. It includes a roller frame (not shown) for use.

The discharging conveying unit 220 is a discharging in which a plurality of discharging conveyor rollers (not shown) that support the electrode laminate and transfer the electrode laminate by rotation, and a discharging conveyor roller (not shown) are rotatably coupled It includes a roller frame (not shown) for use.

On the other hand, the overhang inspection apparatus 100 for secondary batteries receives the electrode stack manufactured by the crossover device SC for secondary batteries. The overhang inspection apparatus 100 for such a secondary battery takes an image of the electrode laminate.

The overhang inspection apparatus 100 for a secondary battery of this embodiment inspects an overhang region in which the distal end of some electrodes (not shown) protrude laterally compared to other electrodes (not shown) by imaging the received electrode stack. do.

As shown in FIGS. 2 to 9, the overhang inspection apparatus 100 for the secondary battery includes a first jig unit 110a for a laminate, a jig unit 110b for a second laminate, and an imaging unit 120 for inspection. and a rotation unit 130 for a first laminate, a rotation unit 140 for a second laminate, a transfer unit 150, and an imaging unit 120 for inspection are disposed therein, and a radiation shielding wall 129 for shielding radiation. include

The inspection imaging unit 120 captures the two electrode stacks clamped to each of the first jig unit 110a and the second stacked body jig unit 110b together.

The inspection imaging unit 120 according to the present embodiment is, as shown in FIGS. 3 to 5, the first stacked body jig unit 110a and the second stacked body jig unit 110b clamped to each electrode stacked. A radiation emitting unit 121 that emits radiation toward the body, a radiation detection unit 122 that is disposed to be spaced apart from the radiation emitting unit 121 and detects radiation emitted from the radiation emitting unit 121 , and a radiation emitting unit 121 and the radiation detection unit 122, the radiation emitting unit 121 and the radiation detection unit 122 are relatively rotated with respect to the first jig unit 110a for the laminate and the jig unit 110a for the first laminate. Includes a rotating part 123 for.

In this embodiment, X-rays are used as radiation, and the radiation emitting unit 121 emits X-rays.

The radiation emitting part 121 according to the present embodiment may be formed in a structure using a filament emitter or a carbon nanotube emitter. Hereinafter, a case in which the radiation emitting unit 121 uses a carbon nanotube emitter will be described, but the radiation emitting unit according to the present embodiment may use a filament as a cathode.

The radiation emitting unit 121 according to the present embodiment includes, as shown in FIG. 9 , an emitter 121a corresponding to a cathode, a gate electrode 121b disposed on an upper region of the emitter 121a, It includes a target anode 121c disposed on the upper region of the gate electrode 121b, and a focus electrode 121d disposed between the gate electrode 121b and the target anode 121c.

A cathode power is connected to the emitter 121a, and an electron beam is emitted from the emitter 121a. In this embodiment, carbon nanotubes are used for the emitter 121a. Carbon nanotubes are formed in a paste form, applied on a substrate, patterned through exposure, etc., and then proceeded through a firing process, a surface treatment process, and the like.

As described above, the radiation emitting unit 121 of this embodiment uses the emitter 121a to which carbon nanotubes are applied rather than a filament, thereby solving the problems of X-ray preheating time, response time, and double shielding structure. That is, in the case of using a filament emitter, it takes about 8 seconds to reach 130kV/300uA, which is capable of CT examination in an OFF state that does not emit X-rays. Therefore, in order to shorten the inspection time, the radiation emitting unit (not shown) is maintained in an always-on state, and a shutter that opens and closes only the radiation emitting unit (not shown) in addition to the radiation shielding wall 129 is installed. Although a double shielding structure has been proposed, there is a problem in that the structure is complicated, consumes a lot of power, and breaks down frequently, which consumes a lot of money for maintenance.

On the other hand, the radiation emitting unit 121 having the emitter 121a to which carbon nanotubes are applied as in this embodiment reaches 130kV/300uA, which allows CT examination in an OFF state that does not emit X-rays. Since it takes only tens of nanoseconds (ns), the radiation emitting unit 121 does not need to be kept in an always-on state, so a double shielding structure is not required, and there is an advantage of high stability and high service life.

The gate electrode 121b is disposed on the upper region of the emitter 121a. A gate power supply (not shown) for applying or releasing a higher potential than that of the cathode is connected to the gate electrode 121b. An electron beam is emitted from the emitter 121a by the potential difference between the voltage applied to the gate electrode 121b and the cathode.

A plurality of gate holes (not shown) are formed in the gate electrode 121b at a constant pitch, and electrons emitted from the emitter 121a pass through the gate hole (not shown) to advance to the target anode 121c.

The target anode 121c is disposed on the upper region of the gate electrode 121b. A voltage having a higher potential than that of the gate electrode 121b is applied to the target anode 121c. Accordingly, the electron beam emitted from the emitter 121a and passing through the gate electrode 121b is accelerated in the direction of the target anode 121c to reach the target anode 121c.

A target (not shown) emitting X-rays by collision of incident electrons is provided on the target anode 121c. This target is disposed on the lower surface facing the cathode as one surface of the anode 121c for the target. In this embodiment, the lower surface of the anode 121c for the target is formed in an inclined shape forming an acute angle with the direction in which electrons are incident. Accordingly, when electrons are incident on the target anode 121c, X-rays can be generated and emitted in a direction symmetrical to the electron incident angle with respect to the normal direction of the inclined surface. That is, the generated X-rays are emitted in the direction shown in FIG.

The focus electrode 121d is disposed between the gate electrode 121b and the target anode 121c. This focusing electrode focuses the electron beam passing through the gate electrode 121b at a high density and guides it to the target anode 121c. That is, the electrons passing through the gate electrode 121b gradually spread due to the repulsive force between the electrons, so the focus electrode 121d focuses the electron beam to direct the electrons to the focal spot of the target anode 121c. . The focus electrode 121d is formed in a cylindrical shape with a hole formed in the center.

A radiation emitting part 121 and a radiation detecting part 122 are mounted on the rotating part 123 for inspection. The rotation unit 123 for inspection rotates the radiation emitting unit 121 and the radiation detection unit 122 relative to the first jig unit 110a for the laminate and the jig unit 110a for the first laminate.

As shown in FIG. 5 , the rotating unit 123 for inspection is connected to the rotating unit frame unit 124 and the rotating unit frame unit 124 to be relatively movably moved and the radiation emitting unit 121 is coupled to the emitting unit for movement. The block unit 125, the moving block unit 126 for the detection unit, which is relatively movably connected to the rotation unit frame unit 124 and to which the radiation detection unit 122 is coupled, and the rotation unit frame unit 124 and is coupled to the emitting unit for movement. A movement guide unit 127 for the discharge unit 127 for guiding the movement of the block unit 125, and a movement guide unit 128 for the detection unit coupled to the frame unit 124 of the rotating unit and guiding the movement of the moving block unit 126 for the detection unit. and a moving driving unit (not shown) coupled to the rotating unit frame unit 124 and moving the moving block unit 125 for the discharging unit, and a moving block unit 126 for the detecting unit coupled to the rotating unit frame unit 124 and It includes a movement driving unit (not shown) for the detection unit to move.

The rotating frame portion 124 is fixed to the installation surface, and is formed in a circular annular shape with a hollow central region. The transfer unit 150 passes through the central region of the rotating frame portion 124 .

The moving block unit 125 for the discharge unit is connected to the rotating unit frame unit 124 to be movable relative to each other and can be rotated in a circular arc around the central region. The radiation emitting unit 121 is coupled to the moving block unit 125 for the emitting unit.

The moving block unit 126 for the detection unit is connected to the rotating unit frame unit 124 to be relatively movable and can be rotated while drawing an arc around the central region. The radiation detection unit 122 is coupled to the moving block unit 126 for the detection unit.

The moving guide part 127 for the discharge part is coupled to the rotating part frame part 124 . The moving guide portion 127 for the discharge unit is formed in an arc shape to guide the arc-shaped movement of the moving block unit 125 for the discharge unit. In this embodiment, the moving guide unit 127 for the discharge unit has a guide rail structure to which the moving block unit 125 for the discharge unit is slidably coupled.

The movement guide unit 128 for the detection unit is coupled to the rotating unit frame unit 124 . The movement guide unit 128 for the detection unit is formed in an arc shape to guide the arc-shaped movement of the movement block unit 126 for the detection unit. In this embodiment, the moving guide unit 128 for the detection unit has a guide rail structure to which the moving block unit 126 for the detection unit is slidably coupled.

A moving driving unit (not shown) for the discharge unit is coupled to the rotating unit frame unit 124 . The moving driving unit (not shown) for the discharging unit is connected to the moving block unit 125 for the discharging unit to move the moving block unit 125 for the discharging unit. In this embodiment, the moving driving unit (not shown) for the discharge unit may be formed of an actuator such as a pressurized cylinder or a servo motor.

A movement driving unit (not shown) for the detection unit is coupled to the rotating unit frame unit 124 . This movement driving unit (not shown) for the detection unit is connected to the movement block unit 126 for the detection unit to move the movement block unit 126 for the detection unit. In the present embodiment, the movement driving unit (not shown) for the detection unit may be formed of an actuator such as a pressure cylinder or a servo motor.

The jig unit 110a for the first laminate is coupled to the upper portion of the rotation unit 130 for the first laminate. The first jig unit 110a for the stacked body clamps the electrode stacked body.

The first jig unit 110a for the laminate is coupled to the rotation unit 130 for the first laminate, as shown in FIGS. 6 to 8 , and a clamping movement driving unit for moving the clamping units 111c and 111d for the laminate. (111e) is provided.

The clamping parts 111c and 111d for the stacked body are moved in a direction approaching and spaced apart from the electrode stacked body to clamp and unclamp the electrode stacked body. The clamping units 111c and 111d for the laminate are spaced apart from the first holding plate unit 111c connected to the clamping movement driving unit 115 and the first holding plate unit 111c, and are provided for clamping. and a second holding plate part 111d connected to the movement driving part 111e.

The electrode stack is disposed between the first gripping plate portion 111c and the second gripping plate portion 111d, and the first gripping plate portion 111c and the second gripping plate portion 111d are mutually By the movement in the approaching direction and the movement in the mutually spaced apart direction of the first holding plate portion 111c and the second holding plate portion 111d, the electrode stack is formed between the first holding plate portion 111c and the second holding plate portion 111c. It is clamped and unclamped by pressing and releasing the pressure by the plate part 111d for the finger.

The clamping movement driving unit 111e is coupled to the rotation unit 130 for the first stacked body. The clamping movement driving unit 111e moves the first holding plate part 111c and the second holding plate part 111d.

The clamping movement driving unit 111e according to the present embodiment is connected to the first holding plate part 111c and the second holding plate part 111d, and the first holding plate part 111c and the second holding plate part 111c. A gripping movement guide portion 111f for guiding the movement of the plate portion 111d, the first gripping plate portion 111c and the second gripping plate portion 111d are connected to each of the first gripping plate portion ( 111c) and a pair of gripping moving bars (111g) for moving each of the second gripping plate parts 111d in mutually approaching and mutually spaced directions, and a gripping movable bar (111g) connected to for gripping and a gripping moving driving unit (not shown) for moving the moving bar 111g.

The gripping movement guide portion 111f is provided in the shape of a guide rail to guide the movement of the first gripping plate portion 111c and the second gripping plate portion 111d.

A pneumatic cylinder (not shown) which is connected to the gripping moving bar 111g to move the first gripping plate portion 111c and the second gripping plate portion 111d may be used in the gripping movement driving unit (not shown). have.

The jig unit 110b for the second laminate is coupled to the upper portion of the rotation unit 140 for the second laminate. The second jig unit 110b for the stacked body clamps the electrode stacked body. Since the jig unit 110b for the second laminate has the same structure as the jig unit 110a for the first laminate, the structure of the jig unit 110b for the second laminate is the above-described jig unit for the first laminate 110a. replaced by an explanation for

The jig unit 110a for the first laminate is coupled to the rotation unit 130 for the first laminate. The rotation unit 130 for the first laminate rotates the electrode laminate as shown in FIG. 4 .

The rotation unit 130 for the first laminate includes a first tilting unit 131 to which the jig unit 110a for the first laminate is rotatably coupled and rotates the jig unit 110a for the first laminate.

As shown in FIG. 4 , the first tilting part 131 is formed in a rectangular box shape. The first tilting part 131 is provided with a rotation shaft H to which the first jig unit 110a for a laminate is rotatably coupled. In addition, a rotation actuator (not shown) connected to the first jig unit 110a for a stacked body to rotate the first jig unit 110a for the first stacking body is disposed inside the first tilting part 131 . A servo motor may be used for the actuator for rotation (not shown).

The second rotation unit 140 for the laminate includes a second tilting unit 141 to which the jig unit 110b for the second laminate is rotatably coupled and rotates the jig unit 110b for the second laminate.

As shown in FIG. 4 , the second tilting part 141 is formed in a rectangular box shape. The second tilting part 141 is provided with a rotation shaft H to which the second jig unit 110b for a stacked body is rotatably coupled. In addition, a rotation actuator (not shown) connected to the jig unit 110b for the second stacked body to rotate the jig unit 110b for the second stacked body is disposed inside the second tilting part 141 . A servo motor may be used for the actuator for rotation (not shown).

The radiation shielding wall 129 is provided as a housing structure that shields the radiation emitting unit 121 and the radiation detection unit 122 . The above-described radiation shielding wall 129 is provided with a through hole K through which the laminate passes.

The transfer unit 150 is a rotation unit 130 for a first stack to which the jig unit 110a for the first stack to which the electrode stack is clamped, and the jig unit 110b for the second stack to which the electrode stack is clamped. The rotation unit 140 for the second laminate is transferred. Here, for convenience of explanation, the first stacked body jig unit 110a and the second stacked body jig unit 110b are described. For inspection, only two electrode stacks are simply transported, but a plurality of electrode stacked bodies are in-line. Since it is transferred, the electrode stack is clamped to the third, fourth, ... jig units for the stack and transferred through the transfer unit 150 .

The transfer unit 150 supports the rotation unit 130 for the first laminate and the rotation unit 140 for the second laminate and rotates the rotation unit 130 for the first laminate and the rotation unit for the second laminate ( 140) includes a plurality of conveying conveyor rollers (not shown) for conveying, and a conveying roller frame (not shown) to which the conveying conveyor rollers (not shown) are rotatably coupled.

On the other hand, in a position adjacent to the supply transfer unit 210 and the one end region of the transfer unit 150, the rotation unit 130 for the first stack and the rotation unit 140 for the second stack are loaded onto the transfer unit 150. A loading robot (not shown) is disposed. This loading robot (not shown) is a jig unit for a first laminate in which the electrode laminate supplied from the supply transfer unit 210 is coupled to the rotation unit 130 for the first laminate and the rotation unit 140 for the second laminate, respectively. (110a) and the second laminate for the jig unit (110b) is transferred.

In addition, at a position adjacent to the discharging transfer unit 220 and the other end region of the transfer unit 150, the electrode stack clamped to the first stacked body jig unit 110a and the second stacked body jig unit 110b is discharged. An unloading robot (not shown) that delivers to the transfer unit 220 is disposed. In addition, the unloading robot (not shown) includes a rotation unit 130 for a first laminate in which the first jig unit 110a for a laminate from which the electrode laminate is removed, and a jig unit 110b for a second laminate from which the electrode laminate is removed. ) is transferred to the combined second rotation unit 140 for the laminate to a conveyance line (transport line).

A transfer line (not shown) includes a rotation unit 130 for a first stack to which the jig unit 110a for an empty first stack that is not clamped to the electrode stack is coupled, and a jig for an empty second stack that is not clamped with the electrode stack. The unit 110b moves the rotation unit 140 for the second laminate coupled to the transfer unit 210 for supply in the direction of the transfer unit 220 for discharging. This conveying line (not shown) is configured in a conveyor type.

Meanwhile, the outer surface inspection device SD receives the electrode stack on which the overhang inspection process of the overhang inspection device 100 for secondary batteries has been performed through the transfer device SF. The outer surface inspection device SD inspects the outer surface of the electrode stack.

In this embodiment, the external surface inspection device SD is connected to a camera unit (not shown) and a camera unit (not shown) for capturing the outer surface of the electrode stack to control information acquired by the camera unit (not shown). It includes a communication unit (not shown) for transmitting to the unit.

A camera unit (not shown) captures the outer surface of the electrode stack. Such a camera unit (not shown) inspects whether foreign matter is attached to the outer surface of the electrode laminate and the external appearance of the electrode laminate by capturing an image of the outer surface of the electrode laminate.

On the other hand, the transfer device for delivery (SF) is connected to the transport device for inspection 200 and the outer surface inspection device (SD) and passes the electrode stack passing through the overhang inspection device for secondary batteries 100 to the outer surface inspection device (SD). ) to pass

In addition, the transfer device for delivery (SF) is connected to the outer surface inspection device (SD) and the TAB device (TAB) to transfer the electrode stack passing through the outer surface inspection device (SD) to the TAB device (TAB).

The transfer device SF includes a plurality of conveyors (not shown) for transferring the electrode stack, and a direction changer (not shown) for changing the transport direction of the electrode stack.

On the other hand, the control unit (not shown) according to the present embodiment is a secondary battery crossing device (SC), an outer surface inspection device (SD), an overhang inspection device 100 for secondary batteries, a TAB device (TAB), a transfer for inspection Electrically connected to the device 200 and the transfer device (SF) for a secondary battery (SC), an outer surface inspection device (SD), an overhang inspection device for a secondary battery 100, a TAB device (TAB), Controls the operation of the transfer device 200 and the transfer device for delivery (SF) for inspection.

Hereinafter, the operation of the secondary battery manufacturing system according to the present embodiment will be described with reference to FIGS. 2 to 9 mainly with reference to the overhang inspection apparatus 100 for secondary batteries.

First, the electrode stack on which the cross process is completed in the cross device for secondary batteries (SC) is transferred in the direction to the overhang inspection device 100 for secondary batteries by the supply transfer unit 210, and the jig unit for the first stack (110a) and It is clamped to the jig unit 110b for the second laminate.

The jig unit 110a for the first laminate and the jig unit 110b for the second laminate are transferred by the transfer unit 150, and in the transfer process, the jig unit 110a for the first laminate and the jig unit for the second laminate ( When 110b) is positioned in front of the radiation emitting unit 121, as shown in FIG. 4 , the rotation unit 130 for the first laminate and the rotation unit 140 for the second laminate are the first jig unit 110a for the laminate. ) and the second jig unit 110b for the stacked body are rotated to face the edges of the electrode stacked body on both sides.

Thereafter, the inspection imaging unit 120 simultaneously images the two electrode stacks clamped to the jig unit 110a for the first stack and the jig unit 110b for the second stack to image a plurality of single layers such as CT. Acquire video footage. A plurality of tomography images acquired by the imaging unit 120 for inspection are recombined by a control unit (not shown).

At this time, the radiation emitting unit 121 and the radiation detecting unit 122 are rotated around the electrode stack clamped to the jig unit 110a for the first stack and the jig unit 110b for the second stack, and the electrode stack is captured. do.

As described above, the overhang inspection apparatus 100 for a secondary battery according to the present embodiment acquires a tomography image such as CT for the electrode laminate, thereby more accurately displaying the structure of the edge region of the electrode laminate, thereby displaying the overhang region. can be accurately detected.

The electrode stack, which has been inspected by the overhang inspection device 100 for secondary batteries, is transferred to the TAB device TAB through the outer surface inspection device SD.

As such, the secondary battery manufacturing system according to the present embodiment is spaced apart with respect to the first jig unit 110a for a stacked body clamping the electrode stack and the first jig unit 110a for clamping the electrode stacked body. The inspection imaging unit 120 for imaging the respective electrode stacks clamped to the jig unit 110b for the second stacked body, the jig unit 110a for the first stacked body, and the jig unit 110b for the second stacked body to be imaged together. By providing, it is possible to simultaneously inspect two electrode laminates at a time, thereby reducing the time required for inspection.

10 is a view showing the inside of the rotating part for inspection of the secondary battery manufacturing system according to the second embodiment of the present invention.

Hereinafter, a second embodiment of the present invention will be described. Compared with the first embodiment, the present embodiment is the same as the configuration of the first embodiment of FIGS. 2 to 9 except that the configuration of the inspection radiation emitting unit 121 and the radiation detection unit 122 is different from that of the first embodiment. Therefore, a configuration with a difference will be described below.

As shown in FIG. 10 , the imaging unit 120 for inspection according to the present embodiment includes two radiation emitting units 121 and two radiation detection units 122 that move independently of each other.

In order to move the two radiation emitting units 121 and the two radiation detecting units 122 , the inspection rotation unit 123 according to the present embodiment is a moving block unit 125 for two emission units and a movement for two detection units. It has a block part 126, two movement drive parts for emission parts, and two movement drive parts for detection parts.

As described above, the overhang inspection apparatus 100 for a secondary battery according to the present embodiment includes a plurality of radiation emitting units 121 and a radiation detecting unit 122 , so that each of the radiation emitting unit 121 and the radiation detecting unit 122 is By reducing the travel distance and time, the time required for the inspection can be reduced.

11 is a view showing a secondary battery manufacturing system according to a third embodiment of the present invention, FIG. 12 is a view of the inside of the overhang inspection apparatus for a secondary battery of FIG. 11 as viewed from above, and FIG. It is a view showing that the position at which the electrode laminate is imaged is changed by the rotation of the electrode laminate according to the operation of the rotation unit for the first laminate and the rotation unit for the second laminate.

Hereinafter, a third embodiment of the present invention will be described. This embodiment differs from the first embodiment in that the electrode stack is rotated with respect to the inspection imaging unit 120, and in other configurations, it is the same as the configuration of the first embodiment of FIGS. 2 to 9. , Hereinafter, a configuration with a difference will be described.

In the present embodiment, the radiation emitting unit 121 and the radiation detecting unit 122 are arranged in a fixed state without being rotated with respect to the electrode stack, unlike the first embodiment.

The jig unit 110a for the first laminate is connected to the rotation unit 130 for the first laminate. The first rotation unit 130 for the laminate is, as shown in FIGS. 12 and 13, the first jig unit 110a for the laminate is rotatable in the first axial direction (Z-axis direction) as the rotation axis. A first rotating unit to which the first tilting unit 131 coupled and rotating the first jig unit 110a for the stacked body in the first axial direction (Z-axis direction) as a center of rotation, and the first tilting unit 131 are coupled The rotating block unit 132 and the first rotating block unit 132 are rotatably coupled with the second axis direction (X-axis direction) intersecting the first axis direction (Z-axis direction) as the rotation axis, and 1 The first rotating driving unit 133 that rotates the rotating block unit 132 in the second axis direction (X-axis direction) as the center of rotation, and the first rotating driving unit 133 are coupled to each other in the first axis direction (Z-axis direction) and the second axis direction (X-axis direction) connected to the first moving block unit 134 and the first moving block unit 134 moving in the third axis direction (Y axis direction) intersecting the direction and a first block moving driving unit 135 for moving the moving block unit.

The first tilting part 131 is provided with a rotation shaft H to which the first jig unit 110a for the stacked body is rotatably coupled to the first axial direction (Z-axis direction) as a rotation axis. A rotation actuator (not shown) connected to the first jig unit 110a for a stacked body and rotates the first jig unit 110a for a stack is disposed inside the first tilting part 131 . As the actuator for rotation, a servo motor may be used.

The first rotating block unit 132 is provided in a plate shape, and the first tilting unit 131 is coupled to the upper surface of the first rotating block unit 132 . The first rotating block unit 132 is rotatably coupled to the first rotating driving unit 133 .

The first rotating driving unit 133 rotates the first rotating block unit 132 . A rotational driving motor (not shown) connected to the first rotating block unit 132 to rotate the first rotating block unit 132 is mounted on the first rotating driving unit 133 .

The first block movement driving unit 135 is connected to the first movement block unit 134 and moves the first movement block unit 134 . The first block moving driving unit 135 may move the first moving block unit 134 using a linear motor method.

The jig unit 110b for the second laminate is connected to the rotation unit 140 for the second laminate. As shown in FIGS. 12 to 13, the second rotation unit 140 for the second laminate allows the second jig unit 110b for the laminate to rotate in the first axial direction (Z-axis direction) as the rotation axis. A second rotating unit coupled to the second tilting unit 141 and the second tilting unit 141 for rotating the second jig unit 110b in the first axial direction (Z-axis direction) as a center of rotation. The rotating block unit 142 and the second rotating block unit 142 are rotatably coupled with the second axis direction (X-axis direction) as a rotation axis, and the second rotating block unit 142 is connected to the second axis. A second moving block that is coupled to a second rotating driving unit 143 that rotates in a direction (X-axis direction) as a rotation axis and a second rotating driving unit 143 is moved in a third axis direction (Y-axis direction) It includes a unit 144 and a second block movement driving unit 145 connected to the second moving block unit 144 and moving the moving block unit.

The second tilting part 141 is provided with a rotation shaft H to which the second jig unit 110b for the stacked body is rotatably coupled to the first axial direction (Z-axis direction) as a rotation axis. A rotation actuator (not shown) connected to the jig unit 110b for the second stacked body and rotates the jig unit 110b for the second stacked body is disposed inside the second tilting part 141 . As the actuator for rotation, a servo motor may be used.

The second rotating block unit 142 is provided in a plate shape, and the second tilting unit 141 is coupled to the upper surface of the second rotating block unit 142 . The second rotating block unit 142 is rotatably coupled to the second rotating driving unit 143 .

The second rotating driving unit 143 rotates the second rotating block unit 142 . A rotation driving motor (not shown) connected to the second rotating block unit 142 to rotate the second rotating block unit 142 is mounted on the second rotating driving unit 143 .

The second block movement driving unit 145 is connected to the second movement block unit 144 and moves the second movement block unit 144 . The second block movement driving unit 145 may move the second movement block unit 144 using a linear motor method.

In addition, in the inside of the radiation shielding wall 129 of this embodiment, the electrode stack supplied by the supply transfer unit 210 is transferred to the jig unit 110a for the first stack and the jig unit 110b for the second stack, An articulated robot 160 that transfers the imaging-finished electrode stack from the jig unit 110a for the first stack and the jig unit 110b for the second stack to the transfer unit 220 for discharging is disposed.

The articulated robot 160 includes a robot support body (not shown) supported on an installation surface, and an articulated arm (not shown) connected to the robot support body (not shown) and having at least three different axes.

In this embodiment, the multi-joint arm (not shown) is applied in a 6-axis structure having 6 different axes. That is, in the present embodiment, the multi-joint arm (not shown) moves the electrode stack after holding it by different 6-axis motions.

As shown in FIG. 12 , the electrode stack clamped to the jig unit 110a for the first stack and the jig unit 110b for the second stack is disposed adjacent to the radiation emitting unit 121 to face each other.

The overhang inspection apparatus 100 for a secondary battery according to the present embodiment, as shown in FIG. 13( a ), uses the second corner of the left electrode stack and the first corner of the right front stack as the radiation emitting part 121 . can be captured simultaneously.

Thereafter, the left and right electrode stacks are rotated 180 degrees in the second axis direction (X-axis direction) through the first rotating driving unit 133 and the second rotating driving unit 143 . At this time, the left and right electrode stacks are rotated in the first axial direction (Z-axis direction) by the operation of the first tilting part 131 and the second tilting part 141 to have the posture of FIG. 13( b ).

In this state, the first corner of the left electrode stack and the second corner of the right front stack may be simultaneously imaged by the operation of the radiation emitting unit 121 .

As such, the secondary battery manufacturing system according to the present embodiment is spaced apart with respect to the first jig unit 110a for a stacked body clamping the electrode stack and the first jig unit 110a for clamping the electrode stacked body. The inspection imaging unit 120 for imaging the respective electrode stacks clamped to the jig unit 110b for the second stacked body, the jig unit 110a for the first stacked body, and the jig unit 110b for the second stacked body to be imaged together. By providing, it is possible to simultaneously inspect two electrode laminates at a time, thereby reducing the time required for inspection.

14 is a view showing a secondary battery manufacturing system according to a fourth embodiment of the present invention, FIG. 15 is a view of the inside of the overhang inspection apparatus for a secondary battery of FIG. 14 viewed from the top, and FIG. 16 is a view of FIG. It is a view of the inside of the overhang inspection device for secondary batteries viewed from the front. For convenience of illustration in FIG. 16 , illustration of the articulated robot 160 , the transfer unit 170 , and the tray holding unit 180 is omitted.

Hereinafter, a fourth embodiment of the present invention will be described. Compared with the third embodiment, in this embodiment, the inspection imaging unit 120 is disposed in a vertical direction with respect to the inspection imaging unit 120 , and the first stacked body jig unit 110a and the second stacked body jig There is a difference in that the unit 110b is composed of a plurality of units and can be moved relative to the imaging unit 120 for inspection. This configuration will be described.

The secondary battery manufacturing system according to this embodiment can move the tray on which the electrode stack can be loaded in the vertical direction and transfer the tray to the overhang inspection device 100 for secondary batteries. , the tray can be moved in the vertical direction, and the stacked body take-out device 400 that receives the tray loaded with the inspected electrode stack from the overhang inspection device for secondary batteries, and the empty tray from the stacked body take-out device 400 It further includes a tray conveying device 500 for delivering to the inlet device (300).

In addition, a loading robot (not shown) for loading the electrode stack transferred by the supply transfer unit 210 on a tray is disposed around the stacked body lead-in device 300 and the discharge transfer unit 220 . A loading robot (not shown) for transferring the inspected electrode stack to the discharging transfer unit 220 is disposed around the stacked body take-out device 400 and the discharging transfer unit 220 .

The stacked body withdrawing device 300 includes a lifting block unit NB for supporting the tray, a lifting guide unit NG for guiding vertical movement of the lifting block unit NB, and the lifting block unit NB up and down. It includes a lift driving unit (NP) for moving in the direction.

The tray is supported on the lifting block part NB. A conveying roller (not shown) connected to the lower surface of the tray and conveying the tray to the conveying unit 170 to be described later by drawing the inside of the radiation shielding wall 129 is provided in the lifting block NB. The elevating guide part NG is provided in the shape of a rod. The elevating block unit NB is slidably connected to the elevating guide unit NG. The lifting driving unit NP moves the lifting block NB in the vertical direction. The lifting driving unit NP includes a moving nut (not shown) coupled to the lifting block NB, a ball screw meshed with the moving nut, and a servo mother rotating the ball screw.

The stacked body take-out device 400 includes a lifting block unit NB for supporting the tray, a lifting guide unit NG for guiding vertical movement of the lifting block unit NB, and the lifting block unit NB up and down. It includes a lift driving unit (NP) for moving in the direction.

The tray is supported on the lifting block part NB. A transfer roller (not shown) connected to the lower surface of the tray and receiving the tray from the transfer unit 170 to be described later is provided in the lifting block unit NB. Since the elevating guide part NG and the elevating driving part NP are configured to be substantially the same as those of the stacked body pull-in device 300 , descriptions thereof will be omitted for convenience of description.

The tray transfer device 500 transfers an empty tray from the stacked body take-out device 400 to the stacked body pull-in device 300 . The tray conveying device 500 supports the empty tray and a plurality of conveying conveyor rollers (not shown) for conveying the empty tray by rotation, and a feeding roller to which a conveying conveyor roller (not shown) is rotatably coupled. frame (not shown).

On the other hand, the overhang inspection apparatus 100 for a secondary battery according to the present embodiment is disposed inside the radiation shielding wall 129 and transfers the tray received from the stacked body pull-in device 300 to the stacked body take-out device 400 . and a tray holding unit 180 disposed adjacent to the conveying unit 170 and receiving a tray from the conveying unit 170, and a tray holding unit disposed adjacent to the tray holding unit 180 The electrode laminate loaded on the tray supported by 180 is transferred to the jig unit 110a for the first laminate and the jig unit 110b for the second laminate, and the electrode laminate after imaging is transferred to the jig unit for the first laminate ( 110a) and the second multi-joint robot 160 for transferring from the jig unit 110b for the stacked body to the tray is disposed.

The articulated robot 160 includes a robot support body (not shown) supported on an installation surface, and an articulated arm (not shown) connected to the robot support body (not shown) and having at least three different axes.

In this embodiment, the multi-joint arm (not shown) is applied in a 6-axis structure having 6 different axes. That is, in the present embodiment, the multi-joint arm (not shown) moves the electrode stack after holding it by different 6-axis motions.

The transfer unit 170 transfers the tray received from the stacked body pull-in device 300 to the stacked body take-out device 400 . The transfer unit 170 includes a first transfer unit (not shown) for transferring the tray loaded with the electrode stack in the X-axis direction, and a second transfer unit for transferring the tray in the Y-axis direction.

The first transfer unit (not shown) transfers the tray in the X-axis direction. The second transfer unit transfers the tray in the Y-axis direction to the tray holding unit 180 . The second transfer unit serves as a diverter, and may move the tray transferred in the X-axis direction by the first transfer unit (not shown) in the Y-axis direction.

The tray holding unit 180 is disposed adjacent to the transfer unit 170 to receive the tray from the transfer unit 170 . The tray holding unit 180 is provided with a conveying roller (not shown) capable of transferring the tray back to the conveying unit 170 .

On the other hand, as shown in FIGS. 15 and 16 , three imaging units 120 for inspection are provided and disposed inside the radiation shielding wall 129 , and the number of imaging units 120 for inspection may be variously changed. have. The first rotation unit 130 for the laminate and the rotation unit 140 for the second laminate are disposed inside the radiation shielding wall 129 in numbers corresponding to the number of imaging units 120 for inspection.

In this embodiment, the radiation emitting unit 121 and the radiation detection unit 122 are disposed to be spaced apart from each other in the vertical direction, unlike the third embodiment.

The jig unit 110a for the first laminate is connected to the rotation unit 130 for the first laminate. The first rotation unit 130 for the laminate is, as shown in FIGS. 15 and 16, the first jig unit 110a for the laminate is rotatable in the first axial direction (Y-axis direction) as the rotation axis. A first rotation unit to which the first tilting unit 131 coupled and rotating the first jig unit 110a for the stacked body with the first axis direction (Y axis direction) as the center of rotation, and the first tilting unit 131 are coupled The rotating block unit 132 and the first rotating block unit 132 are rotatably coupled with the second axis direction (X axis direction) intersecting the first axis direction (Y axis direction) as a rotation axis, and 1 The first rotating driving unit 133 that rotates the rotating block unit 132 in the second axis direction (X-axis direction) as the center of rotation, and the first rotating driving unit 133 are coupled to each other in the first axis direction It includes a first moving block unit 134 moving in the (Y-axis direction), and a first block moving driving unit 135 connected to the first moving block unit 134 and moving the moving block unit.

The first tilting part 131 is provided with a rotation shaft to which the first jig unit 110a for the stacked body is rotatably coupled to the first axial direction (Y-axis direction) as a rotation axis. A rotation actuator (not shown) connected to the first jig unit 110a for a stacked body and rotates the first jig unit 110a for a stack is disposed inside the first tilting part 131 . As the actuator for rotation, a servo motor may be used.

The first rotating block unit 132 is provided in a plate shape, and the first tilting unit 131 is coupled to the upper surface of the first rotating block unit 132 . The first rotating block unit 132 is rotatably coupled to the first rotating driving unit 133 .

The first rotating driving unit 133 rotates the first rotating block unit 132 . A rotational driving motor (not shown) connected to the first rotating block unit 132 to rotate the first rotating block unit 132 is mounted on the first rotating driving unit 133 .

The first block movement driving unit 135 is connected to the first movement block unit 134 and moves the first movement block unit 134 . The first block moving driving unit 135 may move the first moving block unit 134 using a linear motor method.

In the present embodiment, two first moving block units 134 are provided and are moved by the first block moving driving unit 135 . The jig unit 110a for the first stack supported by the first moving block unit 134 is moved by the movement of each of the first moving block units 134 . That is, the electrode stack may be disposed between the radiation emitting unit 121 and the radiation detection unit 122 by the movement of the first moving block unit 134 , and between the radiation emission unit 121 and the radiation detection unit 122 . can deviate from

As described above, the secondary battery manufacturing system according to the present embodiment includes moving means 134 and 135 that support the electrode stack and move the electrode stack relative to the radiation emitting unit 121 , so that the electrode stack is stacked. The inspection time of the body can be shortened.

The jig unit 110b for the second laminate is connected to the rotation unit 140 for the second laminate. As shown in FIGS. 15 to 16 , the second rotation unit 140 for the second laminate allows the jig unit 110b for the second laminate to rotate in the first axial direction (Y-axis direction) as the rotation axis. A second rotating unit coupled to the second tilting unit 141 and the second tilting unit 141 for rotating the second jig unit 110b in the first axial direction (Y-axis direction) as the center of rotation. The rotating block part 142 and the second rotating block part 142 are rotatably coupled with the second axis direction (X-axis direction) as the center of rotation, and the second rotating block part 142 is connected to the second axis. A second moving block that is coupled to a second rotating driving unit 143 that rotates in a direction (X-axis direction) as a rotation axis and a second rotating driving unit 143 is moved in the first axis direction (Y-axis direction) It includes a unit 144 and a second block movement driving unit 145 connected to the second moving block unit 144 and moving the moving block unit.

The second tilting part 141 is provided with a rotation shaft to which the second jig unit 110b for the stacked body is rotatably coupled to the first axial direction (Y-axis direction) as a rotation axis. A rotation actuator (not shown) connected to the jig unit 110b for the second stacked body and rotates the jig unit 110b for the second stacked body is disposed inside the second tilting part 141 . As the actuator for rotation, a servo motor may be used.

The second rotating block unit 142 is provided in a plate shape, and the second tilting unit 141 is coupled to the upper surface of the second rotating block unit 142 . The second rotating block unit 142 is rotatably coupled to the second rotating driving unit 143 .

The second rotating driving unit 143 rotates the second rotating block unit 142 . A rotation driving motor (not shown) connected to the second rotating block unit 142 to rotate the second rotating block unit 142 is mounted on the second rotating driving unit 143 .

The second block movement driving unit 145 is connected to the second movement block unit 144 and moves the second movement block unit 144 . The second block movement driving unit 145 may move the second movement block unit 144 using a linear motor method.

In this embodiment, two second movement block units 144 are provided and are moved by the second block movement driving unit 145 . The jig unit 110b for the second stack supported by the second moving block unit 144 is moved by the movement of each of the second moving block units 144 . That is, the electrode stack may be disposed between the radiation emitting unit 121 and the radiation detection unit 122 by the movement of the second moving block unit 144 , and between the radiation emission unit 121 and the radiation detection unit 122 . can deviate from

As described above, the secondary battery manufacturing system according to the present embodiment includes moving means 144 and 145 that support the electrode stack and can relatively move the electrode stack with respect to the radiation emitting unit 121, so that the electrode stack is stacked. The inspection time of the body can be shortened.

In addition, in the overhang inspection apparatus 100 for a secondary battery according to the present embodiment, a plurality of inspection imaging units 120 are provided in the radiation shielding wall 129, and the electrodes are moved relative to the inspection imaging unit 120. By providing the moving means 134 , 135 , 144 , and 145 for moving the laminate to the imaging position, the waiting time for imaging of the imaging unit 120 for inspection is reduced, thereby shortening the inspection time of the electrode laminate.

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

As such, the present invention is not limited to the described embodiments, and it is apparent 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. Accordingly, it should be said that such modifications or variations are included in the claims of the present invention.

100: overhang inspection device for secondary battery 110a: jig unit for the first laminate
110b: jig unit for second laminate 120: imaging unit for inspection
121: radiation emitting unit 122: radiation detection unit
123: rotation part for inspection 124: rotation part frame part
125: moving block unit for emitting unit 126: moving block unit for detection unit
127: movement guide unit for the discharge unit 128: movement guide unit for the detection unit
130: rotation unit for the first laminate 131: first tilting unit
132: first rotating block unit 133: first rotating driving unit
140: rotation unit for second laminate 141: second tilting unit
142: second rotating block unit 143: second rotating driving unit
200: transfer device for inspection 210: transfer unit for supply
220: transfer unit for discharge

Claims (15)

a jig unit for a first laminate for clamping the electrode laminate provided by alternating the negative electrode and the positive electrode with a separator therebetween;
a second jig unit for a stacked body clamping the electrode stack and spaced apart from the first stacked body jig unit;
an inspection imaging unit for capturing images of each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack;
a rotation unit for a first laminate connected to the jig unit for the first laminate and configured to rotate the electrode laminate; and
An overhang inspection apparatus for a secondary battery connected to the jig unit for the second laminate and including a rotation unit for a second laminate for rotating the electrode laminate. According to claim 1,
The inspection imaging unit,
a radiation emitting unit emitting radiation toward each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack; and
The overhang inspection apparatus for a secondary battery is spaced apart from the radiation emitting part, and comprising a radiation detection part for detecting the radiation emitted from the radiation emitting part. 3. The method of claim 2,
The inspection imaging unit,
The secondary further comprising a rotation part for inspection connected to the radiation emitting part and the radiation detection part, for relatively rotating the radiation emitting part and the radiation detection part with respect to the first jig unit for a laminate and the jig unit for the first laminate Battery overhang inspection device. 4. The method of claim 3,
The rotating part for the inspection,
Rotating part frame part;
a moving block unit connected to the rotating frame to be movable relative to each other, the radiation emitting unit coupled to the emitting unit;
a moving block unit for a detection unit connected to the rotation unit frame unit to be movable relative to each other, and to which the radiation detection unit is coupled;
a movement guide for the emission unit coupled to the rotating frame and connected to the moving block for the emission unit to guide the movement of the moving block for the detection unit;
a movement guide unit for the detection unit coupled to the frame unit of the rotating unit and connected to the moving block unit for the detection unit to guide the movement of the moving block unit for the emission unit;
a moving driving unit coupled to the rotating frame and connected to the moving block for the discharging unit to move the moving block for the discharging unit; and
A secondary battery overhang inspection apparatus coupled to the frame of the rotating unit and connected to the moving block unit for the detection unit and including a moving driving unit for the detecting unit to move the moving block unit for the detecting unit. According to claim 1,
The rotation unit for the first laminate,
The jig unit for the first laminate is rotatably coupled, and an overhang inspection apparatus for a secondary battery including a first tilting part for rotating the jig unit for the first laminate. According to claim 1,
The rotation unit for the second laminate,
The jig unit for the second stack is rotatably coupled to the jig unit for a secondary battery, and a second tilting part for rotating the jig unit for the second stack. According to claim 1,
The rotation unit for the first laminate,
a first tilting unit to which the first jig unit for a laminate is rotatably coupled to a first axial direction as a rotation axis, and rotates the first jig unit for a laminate as a rotation axis in the first axial direction;
a first rotating block unit to which the first tilting unit is coupled; and
The first rotating block unit is rotatably coupled with a second axis direction intersecting the first axis direction as a rotation axis, and the first rotating block unit rotates with the second axis direction as the axis of rotation An overhang inspection device for a secondary battery including a rotating driving unit. According to claim 1,
The rotation unit for the second laminate,
a second tilting unit to which the second jig unit for a stacked body is rotatably coupled to a first axial direction as a rotation axis, and rotates the second jig unit for a second stacked body with the first axial direction as a rotational axis;
a second rotating block unit to which the second tilting unit is coupled; and
The second rotating block unit is rotatably coupled with a second axis direction intersecting the first axis direction as a center of rotation, and the second rotating block unit rotates with the second axis direction as a center of rotation. An overhang inspection device for a secondary battery including a rotating driving unit. a crossover device for a secondary battery that alternately crosses an anode and a cathode with a separator interposed therebetween to produce an electrode stack; and
and an overhang inspection device for secondary batteries that receives the electrode stack produced in the crossover device for secondary batteries and captures an image of the electrode stack,
The overhang inspection device for the secondary battery,
a jig unit for a first stack for clamping the electrode stack;
a second jig unit for a stacked body clamping the electrode stack and spaced apart from the first stacked body jig unit;
an inspection imaging unit for capturing images of each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack;
a rotation unit for a first laminate connected to the jig unit for the first laminate and configured to rotate the electrode laminate; and
An overhang inspection apparatus for a secondary battery connected to the jig unit for the second laminate and including a rotation unit for a second laminate for rotating the electrode laminate. 10. The method of claim 9,
The inspection imaging unit,
a radiation emitting unit emitting radiation toward each of the electrode stacks clamped to the jig unit for the first stack and the jig unit for the second stack; and
The secondary battery manufacturing system comprising a radiation detector that is disposed to be spaced apart from the radiation emitter and detects the radiation emitted from the radiation emitter. 11. The method of claim 10,
The inspection imaging unit,
A secondary battery connected to the radiation emitting part and the radiation detection part, and including a rotation part for inspection which relatively rotates the radiation emitting part and the radiation detection part with respect to the first jig unit for a laminate and the jig unit for the first laminate. manufacturing system. 12. The method of claim 11,
The rotating part for the inspection,
Rotating part frame part;
a moving block unit connected to the rotating frame to be movable relative to each other, the radiation emitting unit coupled to the emitting unit;
a moving block unit for a detection unit connected to the rotation unit frame unit to be movable relative to each other, and to which the radiation detection unit is coupled;
a movement guide unit for a block coupled to the rotating frame unit and guiding the movement of the moving block unit for the emission unit and the moving block unit for the detection unit; and
A secondary battery manufacturing system coupled to the rotating frame unit, and including a moving block unit for a block for moving the moving block unit for the emission unit and the moving block unit for the detection unit. 10. The method of claim 9,
The rotation unit for the first laminate,
The jig unit for the first laminate is rotatably coupled, and a first tilting unit for rotating the jig unit for the first laminate is included.
The second rotation unit for the laminate,
A secondary battery manufacturing system comprising a second tilting unit to which the jig unit for the second stack is rotatably coupled, and a second tilting unit for rotating the jig unit for the second stack. 10. The method of claim 9,
The rotation unit for the first laminate,
a first tilting unit to which the first jig unit for a laminate is rotatably coupled to a first axial direction as a rotation axis, and rotates the first jig unit for a laminate as a rotation axis in the first axial direction;
a first rotating block unit to which the first tilting unit is coupled; and
The first rotating block unit is rotatably coupled with a second axis direction intersecting the first axis direction as a rotation axis, and the first rotating block unit rotates with the second axis direction as the axis of rotation A secondary battery manufacturing system including a rotating driving unit. 10. The method of claim 9,
The rotation unit for the second laminate,
a second tilting unit to which the second jig unit for a stacked body is rotatably coupled to a first axial direction as a rotation axis, and rotates the second jig unit for a second stacked body with the first axial direction as a rotational axis;
a second rotating block unit to which the second tilting unit is coupled; and
The second rotating block unit is rotatably coupled with a second axis direction intersecting the first axis direction as a center of rotation, and the second rotating block unit rotates with the second axis direction as a center of rotation. A secondary battery manufacturing system including a rotating driving unit.

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