Carring apparatus for unit cell and carring method for the same

Abstract

A unit cell transfer device according to one embodiment of the present invention detects the alignment of a unit cell by a first sensing unit before the rotor unit adsorbs the unit cell, and corrects the alignment of the unit cell based on the detected information, thereby performing alignment detection and correction operations in advance to correct the alignment of the unit cell more precisely. In addition, by placing a first to third sensing unit at each position, the unit cell transfer device can secure an alignment correction range and reduce the number of discarded unit cells, thereby increasing the production volume of electrodes.

Description

Technology Field

[0001] The present invention relates to an apparatus and method for transporting a unit cell during the manufacturing process of a secondary battery. Background Technology

[0002] Generally, types of secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, and lithium-ion polymer batteries. These secondary batteries are used not only in small products such as digital cameras, P-DVDs, MP3 players, mobile phones, PDAs, portable game devices, power tools, and E-bikes, but also in large products requiring high output such as electric vehicles and hybrid vehicles, as well as in power storage devices and backup power storage devices that store surplus generated power or renewable energy.

[0003] To manufacture such a secondary battery, first, an electrode active material slurry is applied to a positive electrode current collector and a negative electrode current collector to produce a positive electrode and a negative electrode, and these are stacked on both sides of a separator to form an electrode assembly of a predetermined shape. Then, the electrode assembly is housed in a battery case, and after injecting an electrolyte, it is sealed.

[0004] In the process of manufacturing electrode assemblies, multiple unit cells stacked in a magazine are transferred to the next process, and a unit cell transfer device may be utilized during this transfer. Since the design and transfer of unit cells with alignment are essential steps in the manufacturing process of electrode assemblies using unit cells, the unit cell transfer device must transfer the cells while maintaining their alignment with precision. Therefore, there is a need for a transfer device that detects the alignment of unit cells more precisely and effectively corrects alignment errors. The problem to be solved

[0005] The problem that the present invention aims to solve is to provide a transfer device and a transfer method. means of solving the problem

[0006] In a transfer device for transferring a plurality of unit cells stacked in a magazine, the transfer device for unit cells according to an embodiment of the present invention may include an adsorption part for adsorbing the unit cell placed in the magazine, a rotor part for moving the unit cell through rotational movement while receiving the unit cell from the adsorption part and adsorbing it, and a first sensing part for detecting the alignment of the unit cell adsorbed to the adsorption part.

[0007] The above rotor may include at least one rotating blade that rotates around a rotation axis and at least one adsorption plate connected to one end of each rotating blade to adsorb and transport the unit cell.

[0008] It may further include a control unit that controls the adsorption and transfer operations of the rotor unit based on the alignment of the unit cell detected by the first sensing unit.

[0009] The above adsorption unit may include a first adsorption unit that adsorbs the unit cell placed in the magazine, and a second adsorption unit located outside the first adsorption unit that receives and adsorbs the unit cell from the first adsorption unit.

[0010] The control unit can adjust the adsorption angle and position of the adsorption plate located above the second adsorption unit based on the alignment of the unit cell detected by the first detection unit.

[0011] The adsorption plate may be characterized by sequentially moving to a first position for receiving the unit cell from the adsorption part, a second position for detecting the alignment of the adsorbed unit cell, a third position for releasing the adsorbed unit cell, and a fourth position for discarding the unit cell that was not released at the third position.

[0012] It may further include a second sensing unit located on the lower side of the unit cell adsorbed at the second position and detecting the alignment of the lower surface of the unit cell.

[0013] It may further include a third detection unit located at the above third position that detects the alignment of the unit cell before the unit cell is released.

[0014] The above control unit can determine whether to release the unit cell based on the alignment of the unit cell measured by the second and third sensing units, and control the rotor unit to transfer the unit cell that was not released to the fourth position.

[0015] The first sensing unit is located at the first position and can detect the alignment of the unit cell before the unit cell is transferred from the first adsorption unit to the second adsorption unit.

[0016] The first adsorption unit adsorbs the unit cell located below the first adsorption unit and moves the unit cell to the upper side of the first adsorption unit through rotational movement, and the first sensing unit can detect the alignment of the unit cell located above the first adsorption unit while located above the first adsorption unit.

[0017] In a transfer method for transferring a plurality of unit cells stacked in a magazine, the transfer method of the unit cells according to another embodiment of the present invention may include an adsorption step in which an adsorption part adsorbs the unit cell placed in the magazine, a first sensing step in which a first sensing part detects the alignment of the unit cell adsorbed by the adsorption part, and a transfer step in which a rotor part receives the unit cell from the adsorption part and transfers it.

[0018] The above rotor may include at least one rotating blade that rotates around a rotation axis and at least one adsorption plate connected to one end of each rotating blade to adsorb and transport the unit cell.

[0019] The above adsorption step may include a first adsorption step in which a first adsorption unit adsorbs the unit cell placed in the magazine, and a second adsorption step in which a second adsorption unit receives and adsorbs the unit cell adsorbed by the first adsorption unit.

[0020] The above transfer step may include an adjustment step in which the adsorption angle and position of the adsorption plate located above the second adsorption unit are adjusted based on the alignment of the unit cell detected by the first sensing unit.

[0021] The adsorption plate may be characterized by sequentially moving to a first position for receiving the unit cell from the adsorption part, a second position for detecting the alignment of the adsorbed unit cell, a third position for releasing the adsorbed unit cell, and a fourth position for discarding the unit cell that was not released at the third position.

[0022] The above transfer step may further include a second detection step in which a second detection unit is positioned below the unit cell at the second position to detect alignment of the lower surface of the unit cell, and a third detection step in which a third detection unit detects alignment of the unit cell at the third position before the unit cell is released.

[0023] The above transfer step may further include a determination step in which the release of the unit cell is determined based on the alignment of the unit cell detected by the second and third detection units, a release step in which the unit cell determined to be released in the determination step is released, and a disposal step in which the unit cell that was not released in the release step is disposed of at the fourth position. Effects of the invention

[0024] According to a preferred embodiment of the present invention, the alignment of the unit cell is detected by a first detection unit before the rotor unit adsorbs the unit cell, and the alignment of the unit cell is corrected based on the detected information, thereby performing the alignment detection and correction work in advance to correct the alignment more precisely.

[0025] According to a preferred embodiment of the present invention, by arranging first to third sensing units at each position, the alignment correction range can be secured and the production volume of electrodes can be increased by reducing the number of discarded unit cells.

[0026] In addition to this, the configurations according to the preferred embodiments of the present invention may include effects that are easily predictable by those skilled in the art. Brief explanation of the drawing

[0027] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description of the invention provided below; therefore, the present invention should not be interpreted as being limited only to the matters described in such drawings. FIG. 1 is a perspective view of a unit cell transfer device according to one embodiment of the present invention. FIG. 2 is a plan view of a state in which a unit cell is adsorbed to a first adsorption part according to one embodiment of the present invention. FIG. 3 is a plan view of a state in which an adsorption plate is disposed on one side of a second adsorption part according to one embodiment of the present invention. FIG. 4 is a control block diagram of a unit cell transfer device according to one embodiment of the present invention. FIG. 5 is a flowchart of a method for transferring a unit cell according to another embodiment of the present invention. FIG. 6 is a flowchart of a transfer step according to another embodiment of the present invention. Specific details for implementing the invention

[0028] Hereinafter, preferred embodiments of the present invention are described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited or restricted by the following embodiments.

[0029] In order to clearly explain the present invention, detailed descriptions of related prior art that are irrelevant to the explanation or that may unnecessarily obscure the essence of the invention have been omitted. Furthermore, when assigning reference numerals to the components of each drawing in this specification, identical or similar reference numerals are assigned to identical or similar components throughout the entire specification.

[0030] Furthermore, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0031] FIG. 1 is a perspective view of a unit cell transfer device (1) according to one embodiment of the present invention.

[0032] Referring to FIG. 1, the unit cell transfer device (1) can adsorb and transfer unit cells (2) stacked in a magazine (m) one by one. For example, the unit cell transfer device (1) can transfer the unit cells (2) along a rotational radius through rotational movement while adsorbing the unit cells (2). At each position spaced apart at a certain angle from the rotation axis of the unit cell transfer device (1), the alignment of the unit cells (2) is detected, the unit cells (2) are released, and the unit cells (2) can be discarded. Additionally, by detecting the alignment of the unit cells (2) again at multiple positions, the accuracy of the alignment correction of the unit cells (2) can be increased. In particular, by detecting the alignment of the unit cells (2) in advance while they are first adsorbed from the magazine (m), the alignment can be corrected more precisely.

[0033] The unit cell transfer device (1) may include an adsorption part (10), a rotor part (11), and a first sensing part (12). Additionally, the unit cell transfer device (1) may further include a second sensing part (13), a third sensing part (14), and a control part (15), respectively.

[0034] The adsorption unit (10) can adsorb a unit cell (2) placed in a magazine (m). In other words, the adsorption unit (10) can adsorb one of the multiple unit cells (2) stacked in the magazine (m), move it through rotational motion, and then transfer it to the rotor unit (11) described later.

[0035] The adsorption part (10) may include a first adsorption part (10a) and a second adsorption part (10b).

[0036] The first adsorption unit (10a) can adsorb a unit cell (2) placed in a magazine (m) and can rotate around a rotation axis horizontal to the ground. For example, the first adsorption unit (10a) may include a first main body that rotates around a rotation axis horizontal to the ground and an adsorption pad that moves so as to vary the distance from the main body.

[0037] The first adsorption unit (10a) can move the unit cell (2) to the upper side by rotating it 180 degrees through rotational movement while adsorbing the unit cell (2) located on the lower side through the adsorption pad. Additionally, the first adsorption unit (10a) can transfer the adsorbed unit cell (2) to the second adsorption unit (10b) located on one side after rotating it 90 degrees in the same direction of rotation.

[0038] In this case, the adsorption pad of the first adsorption unit (10a) can descend toward the magazine (m) to adsorb the unit cell (2), and then ascend and rotate to transfer the unit cell (2) to the second adsorption unit (10b).

[0039] Specifically, the first suction unit (10a) can grasp only one unit cell (2) among the multiple unit cells (2) stacked in the magazine (m) through the suction pad. To prevent the phenomenon of multiple unit cells (2) being transported overlapping, the first suction unit (10a) can separate the overlapping unit cells (2) through a shaking motion while grasping the unit cell (2). The first suction unit (10a) can transmit to the second suction unit (10b) by rotating while grasping only a single unit cell (2) through the shaking motion.

[0040] The second adsorption unit (10b) is located on the outside of the first adsorption unit (10a) and can receive and adsorb a unit cell (2) from the first adsorption unit (10a), and can rotate around a rotation axis horizontal to the ground. For example, the second adsorption unit (10b) may include a second main body that rotates around a rotation axis horizontal to the ground and an adsorption surface formed to adsorb a unit cell (2) while moving so that the distance relative to the second main body is variable. The adsorption surface of the second adsorption unit (10b) can adsorb the unit cell (2) using a vacuum state. In other words, for structural reasons, it is difficult to design an adsorption pad in the second adsorption unit (10b), so the second adsorption unit (10b) can receive and grasp the unit cell (2) from the first adsorption unit (10a) through a vacuum adsorption method.

[0041] The second adsorption unit (10b) can rotate while adsorbing the unit cell (2) to move the unit cell (2) to the upper side of the second adsorption unit (10b). At this time, the rotation axis of the second adsorption unit (10b) and the rotation axis of the first adsorption unit (10a) may be parallel to each other. After the unit cell (2) is moved to the upper side of the second adsorption unit (10b), the unit cell (2) can be moved upward through the upward movement of the adsorption surface and delivered to the rotor unit (11).

[0042] The rotor unit (11) can move the unit cell (2) through rotational movement while receiving and adsorbing the unit cell (2) from the adsorption unit (10). For example, the rotor unit (11) can sequentially move the adsorbed unit cell (2) to a predetermined plurality of positions, and as a result, release a plurality of unit cells (2) stacked in the magazine (m) to a specific position. Additionally, the rotor unit (11) can discard unit cells (2) that do not satisfy the alignment condition at another specific position without releasing them.

[0043] The rotor (11) may include at least one rotating blade (110) and at least one adsorption plate (111).

[0044] Each rotating blade (110) can rotate around a rotation axis. Each rotating blade (110) can be spaced apart at a certain angle around the rotation axis. For example, the rotating blades can be composed of a total of four blades and can form a 90-degree angle with each other.

[0045] Each adsorption plate (111) can adsorb and transport a unit cell (2). For example, each adsorption plate (111) is connected to one end of each rotating blade (110), and through the rotational movement of the rotating blade, the unit cell (2) can be transported while adsorbed along the rotational radius. The adsorption plate (111) is connected to the lower surface of the rotating blade, and the unit cell (2) can be transported while adsorbed to the lower surface of the adsorption plate (111).

[0046] However, the structure of the first adsorption part (10a) and the second adsorption part (10b) is not limited thereto, and the adsorption pad of the first adsorption part (10a) may be replaced with an adsorption surface that performs vacuum adsorption, or the adsorption surface of the second adsorption part (10b) may be replaced with an adsorption pad.

[0047] The adsorption plate (111) can sequentially move to a first position (P1) for receiving a unit cell (2) from the adsorption unit (10), a second position (P2) for detecting alignment of the unit cell (2), a third position (P3) for releasing the adsorbed unit cell (2), and a fourth position (P4) for discarding the unit cell (2) that was not released at the third position (P3). For example, the first position (P1) to the fourth position (P4) are arranged sequentially at a 90-degree angle with respect to the rotation axis, and when one adsorption plate (111) moves from the first position (P1) to the second position (P2), another adsorption plate (111) located at the rear with respect to the rotation direction can move from the fourth position (P4) to the first position (P1).

[0048] The first detection unit (12) can detect the alignment of the unit cell (2) adsorbed to the adsorption unit (10). Specifically, the first detection unit (12) can detect the alignment of the unit cell (2) before the unit cell (2) is transferred from the first adsorption unit (10a) to the second adsorption unit (10b). For example, the first detection unit (12) can be located above the first adsorption unit (10a) among the first positions (P1). That is, the first adsorption unit (10a) adsorbs the unit cell (2) located below the first adsorption unit (10a) and moves the unit cell (2) to the upper side of the first adsorption unit (10a) through rotational movement, and the first detection unit (12) can detect the alignment of the unit cell (2) located above the first adsorption unit (10a).

[0049] Specifically, regarding the variable of whether a plurality of unit cells (2) are stacked in the magazine (m) in a pre-designed position and orientation, and the variable of whether the position and orientation of the unit cells (2) have changed during the shaking operation of the first adsorption part (10a) to prevent the phenomenon of separation, the first detection part (12) can detect such variables in advance.

[0050] More specifically, the first sensing unit (12) can detect changes in the unit cells (2), such as when a plurality of unit cells (2) are stacked in a twisted shape in the magazine (m). Additionally, the first sensing unit (12) can detect changes in the unit cells (2), such as when the orientation of the unit cells (2) is distorted or the gripping position changes due to the shaking operation of the first adsorption unit (10a).

[0051] That is, before the unit cell (2) is moved to the second adsorption unit (10b), the first detection unit (12) detects the alignment of the unit cell (2), and while the second adsorption unit (10b) receives the unit cell (2) and rotates, the adsorption plate (111) on the upper side of the second adsorption unit (10b) adjusts the adsorption angle and position in advance, thereby shortening the process time and increasing process efficiency. In addition, by detecting the alignment of the unit cell (2) in advance before the rotor unit (11) transports the unit cell (2), the first detection unit (12) can function to perform a more precise alignment detection process, and the burden on subsequent alignment detection processes can be reduced.

[0052] The second detection unit (13) is located below the unit cell (2) adsorbed at the second position (P2) and can detect the alignment of the lower surface of the unit cell (2). In other words, the second detection unit (13) can detect whether the alignment of the unit cell (2) is maintained in its initial arrangement form while the unit cell (2) is being transported by the rotational movement of the rotor unit (11). That is, the second detection unit (13) is located on the movement path of the unit cell (2) and can reconfirm the alignment of the unit cell (2).

[0053] The third detection unit (14) is located at the third position (P3) and can detect the alignment of the unit cell (2) before the unit cell (2) is released. For example, the third detection unit (14) can be located at either the upper or lower position of the unit cell (2). According to the detection operation of the third detection unit (14) in this manner, the alignment of the unit cell (2) is reconfirmed to ensure that it is maintained in a planned arrangement form before the unit cell (2) is released from the third position (P3). Therefore, during the process of stacking or designing the unit cell (2) through the release operation, the unit cell (2) is placed with accurate alignment, allowing the process of the unit cell (2) to proceed without difficulty.

[0054] FIG. 2 is a plan view of a state in which a unit cell (2) is adsorbed to a first adsorption part (10a) according to one embodiment of the present invention, FIG. 3 is a plan view of a state in which an adsorption plate (111) is disposed on one side of a second adsorption part (10b) according to one embodiment of the present invention, and FIG. 4 is a block diagram of a unit cell transfer device (1) according to one embodiment of the present invention.

[0055] The control unit (15) can control the adsorption and transfer operations of the rotor unit (11) based on the alignment of the unit cell (2) detected by the first detection unit (12). Specifically, the control unit (15) can adjust the adsorption angle and position of the adsorption plate (111) located on the upper side of the second adsorption unit (10b) based on the alignment of the unit cell (2) detected by the first detection unit (12).

[0056] For example, referring to FIG. 2, the first sensing unit (12) is located above the first adsorption unit (10a) and can detect the alignment of the unit cell (2) located adsorbed on the upper surface of the first adsorption unit (10a). As shown in FIG. 2, the first sensing unit (12) can detect the alignment of the unit cell (2) adsorbed at a certain angle rotated from the upper surface of the first adsorption unit (10a).

[0057] Referring to FIG. 3, based on the detection information of the first detection unit (12), the control unit (15) can rotate the adsorption plate (111) located on the upper side of the second adsorption unit (10b) to align with the unit cell (2) and change the adsorption position of the adsorption plate (111). For example, the adsorption plate (111) can be moved three-dimensionally with respect to the X-axis, Y-axis, and Z-axis by the control unit (15), and the adsorption plate (111) can also perform pitching, yawing, and rolling movements through joint movements. By such operation of the adsorption plate (111), the adsorption plate (111) can change the gripping angle and gripping position to match the unit cell (2) whose position and posture have been changed, and can grip the unit cell (2).

[0058] By controlling the operation and position of the adsorption plate (111) using the alignment detection information of the first detection unit (12), the adsorption plate (111) can adsorb and transport the unit cell (2) more precisely, and as a result, the accuracy and efficiency of the entire process can be improved.

[0059] Additionally, referring to FIG. 4, the control unit (15) can determine whether to release the unit cell (2) based on the alignment of the unit cell (2) measured by the second detection unit (13) and the third detection unit (14). In other words, the control unit (15) can control the rotor unit (11) so that the unit cell (2) is released at the third position (P3) only when both the alignment value of the unit cell (2) detected by the second detection unit (13) and the alignment value of the unit cell (2) detected by the third detection unit (14) satisfy the alignment reference value for release. According to the function of the control unit (15) as described above, the alignment of the unit cell (2) is detected again, and only the unit cell (2) with a more accurate alignment is released, so the accuracy of the process is increased and the yield can be increased.

[0060] The control unit (15) can control the rotor unit (11) to transfer the unit cell (2) that has not been released to the fourth position (P4). The unit cell (2) transferred to the fourth position (P4) can be discarded.

[0061] Below, a method for transferring unit cells (2) is disclosed. Descriptions will be omitted to the extent that they overlap with the configuration and concepts described above.

[0062] FIG. 5 is a flowchart of a transfer method of a unit cell (2) according to another embodiment of the present invention.

[0063] Referring to FIG. 5, through a method of transporting unit cells (2), a plurality of unit cells (2) stacked in a magazine (m) can be adsorbed and transported one by one. For example, unit cells (2) can be transported along a rotational radius through rotational movement while adsorbed. During the transport process of unit cells (2), alignment of unit cells (2) is detected, and unit cells (2) that satisfy a release criterion value can be released at a specific location.

[0064] The transfer method of the unit cell (2) may include an adsorption step, a first detection step (S21), and a transfer step (S22).

[0065] In the adsorption step, the adsorption unit (10) can adsorb a unit cell (2) placed in the magazine (m). For example, the adsorption unit (10) may include a first adsorption unit (10a) and a second adsorption unit (10b). The adsorption step may include a first adsorption step (S201) and a second adsorption step (S202).

[0066] In the first adsorption step (S201), the first adsorption unit (10a) can adsorb a unit cell (2) placed in the magazine (m). For example, the first adsorption unit (10a) may include an adsorption pad. The first adsorption unit (10a) can move the unit cell (2) to the upper side by rotating 180 degrees through rotational movement while adsorbing the unit cell (2) located on the lower side through the adsorption pad. Additionally, the first adsorption unit (10a) can transfer the adsorbed unit cell (2) to the second adsorption unit (10b) located on one side after rotating 90 degrees in the same rotational direction.

[0067] In the second adsorption step (S202), the second adsorption unit (10b) can receive and adsorb the unit cell (2) adsorbed from the first adsorption unit (10a). For example, the second adsorption unit (10b) may include an adsorption surface formed to adsorb the unit cell (2). The adsorption surface of the second adsorption unit (10b) can adsorb the unit cell (2) using a vacuum state. The second adsorption unit (10b) can rotate while adsorbing the unit cell (2) to move the unit cell (2) to the upper side of the second adsorption unit (10b).

[0068] In the first detection step (S21), the first detection unit (12) can detect the alignment of the unit cell (2) adsorbed to the adsorption unit (10). Specifically, the first detection unit (12) can detect the alignment of the unit cell (2) before the unit cell (2) is transferred from the first adsorption unit (10a) to the second adsorption unit (10b). For example, the first detection unit (12) can be located above the first adsorption unit (10a) among the first positions (P1). That is, the first adsorption unit (10a) adsorbs the unit cell (2) located below the first adsorption unit (10a) and moves the unit cell (2) to the upper side of the first adsorption unit (10a) through rotational movement, and the first detection unit (12) can detect the alignment of the unit cell (2) located above the first adsorption unit (10a).

[0069] FIG. 6 is a flowchart of a transfer step (S22) according to another embodiment of the present invention.

[0070] Referring to FIG. 6, in the transfer step (S22), the rotor (11) can receive and transfer a unit cell (2) from the adsorption unit (10). The rotor (11) may include at least one rotating blade (110) and at least one adsorption plate (111). Each rotating blade (110) can rotate around a rotation axis. Each adsorption plate (111) can adsorb and transfer a unit cell (2).

[0071] The transfer step (S22) may include a control step (S220), a second detection step (S221), a third detection step (S222), a determination step (S223), a release step (S224), and a disposal step (S225).

[0072] In the adjustment step (S220), the adsorption angle and position of the adsorption plate (111) located on the upper side of the second adsorption unit (10b) can be adjusted based on the alignment of the unit cell (2) detected by the first detection unit (12). For example, the first detection unit (12) can detect the alignment of the unit cell (2) located on the upper side of the first adsorption unit (10a) and adsorbed to the upper surface of the first adsorption unit (10a). The first detection unit (12) can detect the alignment of the unit cell (2) adsorbed by rotating at a certain angle from the upper surface of the first adsorption unit (10a). Based on the detection information of the first detection unit (12), the control unit (15) can rotate the adsorption plate (111) located on the upper side of the second adsorption unit (10b) to match the alignment of the unit cell (2) and change the adsorption position of the adsorption plate (111).

[0073] In the second detection step (S221), the second detection unit (13) is positioned at the lower side of the unit cell (2) at the second position (P2) to detect the alignment of the lower surface of the unit cell (2). In other words, the second detection unit (13) can detect whether the alignment of the unit cell (2) is maintained in the initial arrangement form while the unit cell (2) is being transported by the rotational movement of the rotor unit (11).

[0074] In the third detection step (S222), the third detection unit (14) can detect the alignment of the unit cell (2) before the unit cell (2) is released at the third position (P3).

[0075] In the decision step (S223), whether to release the unit cell (2) can be determined based on the alignment of the unit cell (2) detected by the second detection unit (13) and the third detection unit (14). Only when both the alignment value of the unit cell (2) detected by the second detection unit (13) and the alignment value of the unit cell (2) detected by the third detection unit (14) satisfy the alignment reference value for release, the control unit (15) can control the rotor unit (11) so that the unit cell (2) is released at the third position (P3).

[0076] In the release step (S224), the unit cell (2) for which the release decision was made in the decision step (S223) can be released.

[0077] In the disposal step (S225), the unit cell (2) that was not released in the release step (S224) can be disposed of at the fourth position (P4).

[0078] The above description is merely an illustrative explanation of the technical concept of the present invention, and those skilled in the art to which the present invention pertains will be able to make various modifications and variations within the scope of the essential characteristics of the present invention.

[0079] Accordingly, the embodiments disclosed in this invention are intended to explain, not limit, the technical concept of the invention, and the scope of the technical concept of the invention is not limited by these embodiments.

[0080] The scope of protection of the present invention shall be interpreted by the claims below, and all technical ideas within an equivalent scope shall be interpreted as being included within the scope of rights of the present invention. Explanation of the symbols

[0081] 1: Transfer device of the unit cell 10: Adsorption part 11: Rotor section 12: First detection unit 13: Second detection unit 14: Third detection unit 15: Control unit 10a: First adsorption part 10b: Second adsorption part 110: Multiple rotor blades 111: Adsorption plate S201: First adsorption step S202: Second adsorption step S21: First detection step S22: Transfer stage S220: Adjustment step S221: Second detection step S222: Third detection stage S223: Decision stage S224: Release phase S225: Disposal stage

Claims

Claim 1 A transfer device for transferring a plurality of unit cells stacked in a magazine, comprising: a first adsorption part for adsorbing the unit cell placed in the magazine, and a second adsorption part located outside the first adsorption part and receiving and adsorbing the unit cell from the first adsorption part; a rotor part for moving the unit cell through rotational movement while in a state of receiving and adsorbing the unit cell from the adsorption part; and a first sensing part for detecting the alignment of the unit cell adsorbed by the adsorption part. Claim 2 A unit cell transfer device according to claim 1, wherein the rotor receives and adsorbs the unit cell from the second adsorption unit. Claim 3 A unit cell transfer device according to claim 1, wherein the rotor part comprises: a rotating blade that rotates around a rotation axis; and an adsorption plate connected to one end of the rotating blade to adsorb and transfer the unit cell. Claim 4 A unit cell transfer device according to paragraph 3, further comprising a control unit that controls the adsorption and transfer operation of the rotor unit based on the alignment of the unit cell detected by the first sensing unit. Claim 5 A unit cell transfer device according to claim 4, wherein the control unit adjusts the adsorption angle and position of the adsorption plate located above the second adsorption unit based on the alignment of the unit cell detected by the first detection unit. Claim 6 A unit cell transfer device according to claim 5, wherein the adsorption plate is sequentially moved to a first position receiving the unit cell from the adsorption part, a second position detecting the alignment of the adsorbed unit cell, a third position releasing the adsorbed unit cell, and a fourth position discarding the unit cell that was not released at the third position, and the first detection part is located at the first position to detect the alignment of the unit cell before the unit cell is transferred from the first adsorption part to the second adsorption part. Claim 7 A unit cell transfer device according to claim 1, wherein the first adsorption unit adsorbs the unit cell located below the first adsorption unit and moves the unit cell to the upper side of the first adsorption unit through rotational movement, and the first sensing unit detects the alignment of the unit cell located above the first adsorption unit while located above the first adsorption unit. Claim 8 A transfer device for transferring a plurality of unit cells stacked in a magazine, comprising: an adsorption part that adsorbs the unit cells placed in the magazine; a rotor part that moves the unit cells through rotational movement while adsorbing the unit cells received from the adsorption part; and a first detection part that detects the alignment of the unit cells adsorbed to the adsorption part, wherein the rotor part comprises a rotating blade that rotates around a rotation axis; and an adsorption plate connected to one end of the rotating blade to adsorb and transfer the unit cells, wherein the adsorption plate is characterized by sequentially moving to a first position that receives the unit cells from the adsorption part, a second position that detects the alignment of the adsorbed unit cells, a third position where the adsorbed unit cells are released, and a fourth position where the unit cells that are not released at the third position are discarded. Claim 9 A unit cell transfer device according to claim 8, further comprising a second sensing unit located below the unit cell adsorbed at the second position and detecting the alignment of the lower surface of the unit cell. Claim 10 A unit cell transfer device according to claim 9, further comprising a third sensing unit located at the third position and detecting the alignment of the unit cell before the unit cell is released. Claim 11 A unit cell transfer device according to claim 10, further comprising a control unit that controls the adsorption and transfer operation of the rotor unit based on the alignment of the unit cell detected by the first sensing unit, wherein the control unit determines whether to release the unit cell based on the alignment of the unit cell measured by the second sensing unit and the third sensing unit, and controls the rotor unit to transfer the unit cell that has not been released to the fourth position. Claim 12 A transfer method for transferring a plurality of unit cells stacked in a magazine, comprising: a first adsorption step in which a first adsorption unit adsorbs the unit cell placed in the magazine; a first detection step in which a first detection unit detects the alignment of the unit cell adsorbed by the first adsorption unit; a second adsorption step in which a second adsorption unit receives and adsorbs the unit cell adsorbed by the first adsorption unit; and a transfer step in which a rotor unit receives and transfers the unit cell from the second adsorption unit. Claim 13 A method for transporting a unit cell according to claim 12, wherein the rotor part comprises a rotating blade that rotates around a rotation axis; and an adsorption plate connected to one end of the rotating blade to adsorb and transport the unit cell. Claim 14 A method for transferring a unit cell according to claim 13, wherein the transfer step comprises a control step in which the adsorption angle and position of the adsorption plate located above the second adsorption part are adjusted based on the alignment of the unit cell detected by the first sensing part. Claim 15 A transfer method for transferring a plurality of unit cells stacked in a magazine, comprising: a suction step in which a suction part suctions the unit cell placed in the magazine; a first detection step in which a first detection part detects the alignment of the unit cell suctioned by the suction part; and a transfer step in which a rotor part receives the unit cell from the suction part and transfers it, wherein the rotor part includes a rotating blade that rotates around a rotation axis; and a suction plate connected to one end of the rotating blade to suction and transfer the unit cell, wherein the suction plate is sequentially moved to a first position for receiving the unit cell from the suction part, a second position for detecting the alignment of the suctioned unit cell, a third position for releasing the suctioned unit cell, and a fourth position for discarding the unit cell that was not released at the third position. Claim 16 A method for transferring a unit cell according to claim 15, wherein the transfer step further comprises: a second sensing step in which a second sensing unit is positioned below the unit cell at the second position to detect alignment of the lower surface of the unit cell; and a third sensing step in which a third sensing unit detects alignment of the unit cell before the unit cell is released at the third position. Claim 17 A method for transferring a unit cell according to claim 16, wherein the transfer step further comprises: a determination step in which the release of the unit cell is determined based on the alignment of the unit cell detected by the second and third detection units; a release step in which the unit cell determined to be released in the determination step is released; and a disposal step in which the unit cell that was not released in the release step is disposed of at the fourth position. Claim 18 delete

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