Unit cell stacking device and unit cell stacking method

Abstract

A unit cell stacking device according to an embodiment of the present disclosure may include: a seating plate on which a plurality of unit cells are sequentially seated so as to be stacked on each other; a guide unit connected to the placement plate and guiding the downward movement of the placement plate; a measuring unit that measures position information of the guide unit and position information of the unit battery; and a stacking unit that stacks the plurality of unit cells on the seating plate according to the position information of the guide unit and the position information of the unit cells measured by the measuring unit.

Description

TECHNICAL FIELD

[0001] Cross Reference to Related Applications

[0002] This application claims priority to Korean Patent Application No. 10-2023-0118518, filed on September 6, 2023, the disclosure of which is incorporated herein by reference. TECHNICAL FIELD

[0003] The present disclosure relates to an apparatus and method for aligning and stacking a plurality of unit cells of a secondary battery. BACKGROUND

[0004] In order to solve the problems of environmental pollution due to the use of oil resources and the shortage of energy due to the depletion of oil resources, research and development of power generation based on eco-friendly energy are being conducted. In particular, research on a secondary battery having high utilization due to repeated charging / discharging is actively being conducted, and various aspects such as materials, structures, processes, and stability of the secondary battery are being researched.

[0005] In general, types of secondary batteries include nickel-cadmium batteries, nickel-hydrogen batteries, lithium-ion batteries, and lithium-ion polymer batteries. These secondary batteries are not only applied and used in small products such as digital cameras, P-DVDs, MP3Ps, mobile phones, PDAs, portable game devices, power tools, and e-bikes, but also applied and used in large products requiring high power such as electric vehicles or hybrid vehicles, in power storage devices storing surplus generated power or renewable energy, and in power storage devices for backup.

[0006] In order 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 manufacture a positive electrode and a negative electrode, and then the positive electrode and the negative electrode are stacked on both sides of a separator to form an electrode assembly having a predetermined shape. Also, the electrode assembly is accommodated in a battery case, an electrolyte is injected, and then the battery case is sealed.

[0007] In a process of manufacturing an electrode assembly through a stacking process of a positive electrode and a negative electrode, various types of electrode assemblies are manufactured according to the type of a unit cell. For example, a Bi-cell is a unit cell in which the same type of electrode is positioned on both surfaces in a structure in which at least one positive electrode and at least one negative electrode are stacked with a separator interposed therebetween, a Mono-cell is a unit cell in which different types of electrodes are positioned on both surfaces in a structure in which at least one positive electrode and at least one negative electrode are stacked with a separator interposed therebetween, or stacking can be simply performed by interposing a separator between a positive electrode and a negative electrode.

[0008] However, in a process of stacking a plurality of unit cells, there is a problem in that the plurality of unit cells are stacked in a state in which they are not properly aligned. When a plurality of unit cells are stacked in a state in which they are not properly aligned to form an electrode assembly, there is a problem in that the yield and performance of a secondary battery are reduced.

[0009] A technology to more accurately stack a plurality of unit cells is introduced by measuring and comparing the position of a unit cell and the position of a stacked portion of a unit cell, but it is still difficult to stack a unit cell at a proper position. Therefore, there is a need for a unit cell stacking apparatus capable of more accurately stacking a unit cell. SUMMARY

[0010] TECHNICAL PROBLEM

[0011] The present disclosure aims to provide a unit cell stacking apparatus in which even if a plurality of unit cells are stacked on a seating plate, the position of a unit cell serving as a reference portion for determining the stacking position of a unit cell is maintained.

[0012] The present disclosure also aims to provide a unit cell stacking apparatus that readjusts a stacking operation when a unit cell is not stacked at a proper position.

[0013] TECHNICAL SOLUTION

[0014] A unit cell stacking apparatus according to an embodiment of the present disclosure can include a seating plate on which a plurality of unit cells are sequentially seated so as to be stacked with each other, a guide unit connected with the seating plate and guiding downward movement of the seating plate, a measurement unit measuring position information of the guide unit and position information of the unit cells, and a stacking unit stacking the plurality of unit cells on the seating plate according to the position information of the guide unit and the position information of the unit cells measured by the measurement unit.

[0015] The seating plate can include a connection hole formed through each corner, and the guide unit can be connected with the connection hole through.

[0016] As the plurality of unit cells are stacked on the seating plate, the seating plate can be moved downward along the guide unit.

[0017] The guide unit can be formed in a plurality of units so as to be disposed at each corner portion of the seating plate, and the measurement unit can measure a first reference point at which a plurality of imaginary lines connecting the plurality of guide units intersect, and can measure a second reference point which is a center point of a unit cell located at an uppermost end among the plurality of unit cells stacked on each other.

[0018] The stacking unit can stack the plurality of unit cells in such a manner that the first reference point coincides with the second reference point.

[0019] The unit cell stacking apparatus according to the embodiments of the disclosure can further include a control unit that controls an operation of the stacking unit according to position information of the guide unit and position information of the unit cell measured by the measurement unit.

[0020] The control unit can determine whether the first reference point coincides with the second reference point.

[0021] The control unit, upon determining that the first reference point does not coincide with the second reference point, can readjust a stacking operation of the stacking unit.

[0022] The guide unit can be formed so as to protrude upward from the seating plate as the seating plate is moved downward along the guide unit.

[0023] The stacking unit can sequentially stack the plurality of unit cells on the seating plate in such a manner that a top surface height of a unit cell located at an uppermost end among the plurality of unit cells is identical to a top surface height of the guide unit.

[0024] The top surface height of the guide unit can be maintained constant.

[0025] The connection hole can be formed in a stacking direction of the plurality of unit cells, and the seating plate can be moved along the guide unit in a direction parallel to the stacking direction of the plurality of unit cells.

[0026] The guide unit can be formed in a plurality of units, and a center position of the plurality of guide units can be identical to a center position of the plurality of unit cells stacked on the seating plate.

[0027] A cell stacking method according to another embodiment of the present disclosure may include: a stacking step, in which, as multiple cell stacks are stacked on a mounting plate via a stacking unit, the mounting plate moves downward along a guide unit that is connected through the mounting plate; a measurement step, in which a measurement unit measures position information of the guide unit and position information of the cell; and a control step, in which a control unit controls the operation of the stacking unit based on the position information of the guide unit and the position information of the cell measured in the measurement step.

[0028] In the stacking step, the mounting plate can be moved downward along the guide unit via a connecting hole that passes through the guide unit at each corner.

[0029] In the measurement step, the measurement unit can measure a first reference point where multiple imaginary lines connecting the plurality of guide units intersect, and can measure a second reference point that serves as the center point of the uppermost cell among the plurality of stacked cell cells.

[0030] The control steps may include: a judgment step, in which the control unit determines whether the first reference point and the second reference point coincide; and an adjustment step, in which, when it is determined that the first reference point and the second reference point do not coincide in the judgment step, the control unit readjusts the stacking operation of the stacking unit.

[0031] Beneficial effects

[0032] According to a preferred embodiment of the present disclosure, even when multiple cell units are stacked on a mounting plate, the position of the reference portion used to determine the stacking position of the cell units is maintained, so that even if the mounting plate is lowered according to the stacking of the cell units, the cell units can be stacked more accurately.

[0033] According to a preferred embodiment of this disclosure, when cell cells are not stacked in the correct position, the stacking operation can be readjusted to stack the cell cells more accurately.

[0034] In addition, it may include effects that can be readily predicted by those skilled in the art based on preferred embodiments of this disclosure. Attached Figure Description

[0035] The accompanying drawings illustrate preferred embodiments of the present disclosure and are used, together with the following detailed description, to provide a further understanding of the technical aspects of the present disclosure. Therefore, the present disclosure should not be construed as limited to the drawings.

[0036] Figure 1This is a perspective view of a cell battery being arranged in a cell battery stacking apparatus according to a comparative embodiment.

[0037] Figure 2 This is a schematic diagram showing the state of measuring the position of a cell by means of a cell stacking device according to a comparative embodiment.

[0038] Figure 3 This is a perspective view of a state in which multiple cell batteries are stacked in a cell battery stacking apparatus according to a comparative embodiment.

[0039] Figure 4 This is a schematic diagram showing the state of measuring the positions of multiple stacked cell batteries using a cell battery stacking device according to a comparative embodiment.

[0040] Figure 5 This is a perspective view of a cell stacking device according to an embodiment of the present disclosure.

[0041] Figure 6 This is a perspective view of a stacked state of multiple cell batteries in a cell battery stacking apparatus according to an embodiment of the present disclosure.

[0042] Figure 7 This is a block diagram of a cell stacking device according to an embodiment of the present disclosure.

[0043] Figure 8 This is a plan view of a cell stacking device according to an embodiment of the present disclosure.

[0044] Figure 9 This is a flowchart of a cell stacking method according to another embodiment of the present disclosure. Detailed Implementation

[0045] In the following description, preferred embodiments of the present disclosure will be described in full detail with reference to the accompanying drawings to enable those skilled in the art to readily implement the present disclosure. However, the present disclosure may be embodied in many different forms and is not limited to or construed as described below.

[0046] In order to clearly describe this disclosure, irrelevant descriptions or detailed descriptions of related known techniques that may unnecessarily obscure the main points of this disclosure have been omitted, and when reference numerals are attached to elements in each figure, the same or similar reference numerals are attached to the same or similar elements throughout this disclosure.

[0047] Furthermore, it should be understood that the terms or words used in this disclosure and the appended claims should not be construed as limited to their general and dictionary meanings, but rather as being interpreted based on the meanings and concepts corresponding to the technical aspects of this disclosure, on the basis of the principle that the inventors are permitted to properly define terms for the best interpretation.

[0048] Figure 1 This is a perspective view showing the state in which the cell cells are arranged in the cell cell stacking apparatus according to the comparative embodiment. Figure 2 This is a schematic diagram showing the state of measuring the position of a cell by means of a cell stacking device according to a comparative embodiment.

[0049] Reference Figure 1 and Figure 2 The cell stacking apparatus according to the comparative embodiment can measure the alignment of the cell C to place the cell. For example, the cell measuring apparatus according to the comparative embodiment may include: a plate P1 on which the cell C is placed; a measuring unit P2 on which the measuring unit P2 measures the position of the cell C and the position of the plate P1; and a stacking unit (not shown) on which a plurality of cell Cs are stacked on the plate P1.

[0050] Specifically, the stacking unit (not shown) can clamp the cell C located in different spaces and move the cell C to the upper side of the plate P1, and then, while releasing the clamping of the cell C, place the cell C on the top surface of the plate P1.

[0051] In this scenario, measurement unit P2 can measure the position information of cell C. For example, measurement unit P2 can measure the center point information of cell C by sensing the appearance of cell C and specifying the center point of cell C.

[0052] Furthermore, the measurement unit P2 can measure the position information of the board P1. For example, multiple visual marks M are formed at each corner of the board P1, and the measurement unit P2 designates the point where the imaginary lines connecting the multiple visual marks M intersect as the center of the board P1, so that the center position of the board P1 can be measured.

[0053] Based on the center position information of the cell C measured by the measuring unit P2 and the center position of the plate P1, the stacking unit (not shown) can place the cell C on the top surface of the plate P1. Specifically, the stacking unit (not shown) can place the cell C on the top surface of the plate P1 such that the center position of the cell C coincides with the center position of the plate P1.

[0054] Based on this operating principle, the cell C is placed on the plate P1, but when multiple cells C are stacked, the following problem may occur.

[0055] Figure 3 This is a perspective view of a state in which multiple cell stacks are stacked in a cell stacking apparatus according to a comparative embodiment. Figure 4 This is a schematic diagram showing the state of measuring the positions of multiple stacked cell batteries using a cell battery stacking device according to a comparative embodiment.

[0056] Reference Figure 3 and Figure 4 Multiple cell units C can be stacked on plate P1. During the stacking process of multiple cell units C, plate P1 can be gradually moved downwards. Furthermore, during the stacking process of multiple cell units C, the cell units C can be gradually stacked.

[0057] As described above, the measurement unit P2 measures the center position of the cell C and the center position of the plate P1. However, as multiple cells C are stacked, the measurement accuracy of the measurement unit P2 may decrease.

[0058] For example, when measuring unit P2 measures the center position of cell C, measuring unit P2 can measure the center position information of the cell C located at the topmost among multiple cell Cs. When measuring unit P2 measures the center position of board P1, measuring unit P2 can measure the center point of board P1, that is, the center point position of the cell C located at the bottommost among multiple cell Cs.

[0059] In other words, as multiple cell units C are stacked, there may be distortion between the center position of cell unit C measured by measurement unit P2 and the center position of plate P1. This is because there is a height difference between the center position of cell unit C and the center position of plate P1, and the measurement range of measurement unit P2 is formed by the viewing angle.

[0060] Therefore, when viewed from above, the position where the stacking unit (not shown) intends to stack the cell C is different from the position where the cell C is actually stacked, which may lead to the problem that multiple cell Cs may not be stacked as previously designed.

[0061] To avoid this problem and to stack the cell cells C more accurately, a cell cell stacking apparatus 1 according to the present disclosure can be used. Hereinafter, the cell cell stacking apparatus 1 according to the present disclosure will be described.

[0062] Figure 5 This is a perspective view of a cell stacking device 1 according to an embodiment of the present disclosure. Figure 6 This is a perspective view of a stacked plurality of cell cells C in a cell stacking apparatus 1 according to an embodiment of the present disclosure. Figure 7 This is a block diagram of a cell stacking device 1 according to an embodiment of the present disclosure.

[0063] Reference Figures 5 to 7According to the embodiments of the present disclosure, the cell stacking apparatus 1 can sequentially stack multiple cell Cs. Furthermore, the cell stacking apparatus 1 can stack the cell Cs in more precise positions based on the position information of the cell Cs and the position information of the stacked portions of the cell Cs.

[0064] For example, the cell stacking device 1 can compare the position of the cell C with the position of the stacked portion of the cell C, and can adjust the stacking operation to stack the cell C in the correct position when the cell C is not stacked in the correct position.

[0065] In this case, as multiple cell C units are stacked, the stacked portion of cell C decreases, and the cell stacking device 1 can perform the correct stacking operation in the same manner.

[0066] Specifically, the cell stacking device 1 may include a mounting plate 10, a guiding unit 11, a measuring unit 12, and a stacking unit 13.

[0067] Multiple cell units C can be sequentially arranged on the mounting plate 10 so as to stack on top of each other. For example, the mounting plate 10 can be formed in the shape of a plate forming a flat surface, and multiple cell units C can be sequentially stacked on the top surface of the mounting plate 10.

[0068] The guide unit 11 is connected to the mounting plate 10 and can guide the downward movement of the mounting plate 10. For example, the mounting plate 10 may include a connecting hole 100 formed through each corner, and the guide unit 11 may be connected through the connecting hole 100.

[0069] According to this structure, with the guide unit 11 configured to penetrate the connection hole 100, as multiple cell batteries C are stacked on the mounting plate 10, the mounting plate 10 can move downward along the guide unit 11. In other words, the connection hole 100 is formed through the stacking direction of the cell batteries C, and the mounting plate 10 can move along the guide unit 11 in a direction parallel to the stacking direction of the cell batteries C.

[0070] Furthermore, multiple guide units 11 may be formed so as to be disposed at each corner of the mounting plate 10. However, the shape of the guide unit 11 is not limited to this, and the guide unit 11 may include various shapes formed through the mounting plate 10, such that the mounting plate 10 can move along the guide unit 11.

[0071] When the mounting plate 10 moves downward along the guide unit 11, the guide unit 11 can be configured to protrude upward from the mounting plate 10. That is, the guide unit 11 can be formed in the vertical direction, and while the guide unit 11 maintains its posture and position, only the mounting plate 10 can move downward.

[0072] In other words, with the top surface of the guide unit 11 and the top surface of the mounting plate 10 forming the same plane, the mounting plate 10 moves downward along the guide unit 11, so that the top surface of the guide unit 11 can be positioned higher than the top surface of the mounting plate 10.

[0073] The measuring unit 12 can measure the position information of the guiding unit 11 and the position information of the cell C. For example, the measuring unit 12 can view the stacked cell C when it is positioned above the mounting plate 10.

[0074] The position information of the guide unit 11 and the position information of the cell battery C measured by the measurement unit 12 can be used as reference information for the stacking operation of the stacking unit 13, which will be described later.

[0075] Figure 8 This is a plan view of a cell stacking device 1 according to an embodiment of the present disclosure.

[0076] Reference Figure 8 The measuring unit 12 can measure the center position information of multiple guide units 11. For example, multiple guide units 11 are formed through each corner of the mounting plate 10, and the measuring unit 12 can calculate the center position with the top surface of the multiple guide units 11 as a reference when positioned above the guide units 11.

[0077] Specifically, the measuring unit 12 can measure the first reference point R1 where multiple imaginary lines connecting the multiple guide units 11 intersect. More specifically, when viewed from above, the measuring unit 12 can measure the intersection point of the imaginary lines among the multiple imaginary lines connecting the multiple guide units 11 as the first reference point R1. In other words, the measuring unit 12 can calculate the center intersection point of the imaginary lines connecting the center points of the top surfaces of the guide units 11 and use the center intersection point as the first reference point R1 for measurement.

[0078] Next, the measuring unit 12 can measure the center position information of the cell C. For example, multiple cells C are stacked, and the measuring unit 12 can measure the center position of the top surface of the multiple cells C while positioned above them. Specifically, the measuring unit 12 can measure a second reference point R2, which serves as the center point of the uppermost cell C among the multiple stacked cells C.

[0079] The stacking unit 13 can stack the cell C on the mounting plate 10. For example, the stacking unit 13 can attract and clamp the cell C located in different spaces to move the cell C to the upper side of the mounting plate 10. In this case, the stacking unit 13 can move horizontally while clamping the cell C to move the cell C to the upper side of the mounting plate 10.

[0080] The stacking unit 13 can release the clamps while the cell C is on the upper side of the mounting plate 10, so as to place the cell C on the top surface of the mounting plate 10. The stacking unit 13 can repeat this operation to stack multiple cell Cs.

[0081] The stacking unit 13 can sequentially stack multiple cell C units on the mounting plate 10, such that the top surface height of the uppermost cell C unit is the same as the top surface height of the guiding unit 11.

[0082] In other words, when multiple cell units C are stacked sequentially on the mounting plate 10, the top surface height of the uppermost cell unit C can be the same as the top surface height of the guide unit 11.

[0083] In other words, the top surface height of the guiding unit 11 remains constant, the stacking speed of multiple cell Cs through the stacking unit 13 is the same as the descent speed of the mounting plate 10, and the top surface height of the uppermost cell C among the multiple cell Cs can remain constant.

[0084] As a result, the height of the top surface of the guiding unit 11 and the height of the top surface of the uppermost cell C among the multiple cell Cs can remain constant while being equal to each other.

[0085] The stacking unit 13 can stack the unit batteries C on the mounting plate 10 based on the position information of the guide unit 11 and the position information of the unit batteries C measured by the measuring unit 12. For example, the unit battery stacking device 1 may further include a control unit 14 that controls the operation of the stacking unit 13 based on the position information of the guide unit 11 and the position information of the unit batteries C measured by the measuring unit 12.

[0086] In other words, the control unit 14 can readjust the stacking operation of the stacking unit 13 by comparing the position information of the guide unit 11 measured by the measurement unit 12 with the position information of the cell battery C. For example, the control unit 14 can determine whether the first reference point R1 and the second reference point R2 measured by the measurement unit 12 coincide, thereby determining whether the cell battery C is stacked in the correct position by the stacking unit 13. When the control unit 14 determines that the first reference point R1 and the second reference point R2 do not coincide, the control unit 14 can readjust the stacking operation of the stacking unit 13.

[0087] In other words, the control unit 14 can control the stacking unit 13 so that the first reference point R1 coincides with the second reference point R2. In other words, the stacking unit 13 can stack the cell batteries C so that the first reference point R1 coincides with the second reference point R2. In short, the center position of the multiple guiding units 11 can be the same as the center position of the cell batteries C stacked on the mounting plate 10.

[0088] In summary, as multiple cell units C are stacked on the top surface of the mounting plate 10 via the stacking unit 13, the mounting plate 10 can descend along the guide unit 11. In this case, the height of the top surface of the guide unit 11 remains constant while the guide unit 11 is fixed, and the stacking speed of the multiple cell units C is the same as the descent speed of the mounting plate 10, so that the height of the top surface of the uppermost cell unit C among the multiple cell units C can also remain constant.

[0089] In other words, multiple cell units C can be stacked on the mounting plate 10, such that the top surface of the uppermost cell unit C and the top surface of the guide unit 11 form the same plane. The measuring unit 12 can measure the first reference point R1 with the top surface of the guide unit 11 as a reference, and can measure the second reference point R2 with the top surface of the uppermost cell unit C as a reference.

[0090] Multiple cell cells C are stacked so that the first reference point R1 coincides with the second reference point R2. However, when the control unit 14 determines that the first reference point R1 and the second reference point R2 do not coincide, the control unit 14 can readjust the stacking operation of the stacking unit 13 so that the first reference point R1 coincides with the second reference point R2.

[0091] Based on the operating principle of the cell stacking device 1, even when the mounting plate 10 descends while stacking multiple cell Cs, the first reference point R1 can be calculated with the top surface of the guide unit 11 as a reference, thereby keeping the position of the first reference point R1 constant. That is, regardless of the descent operation of the mounting plate 10, the first reference point R1 and the second reference point R2 remain on the same plane, so multiple cell Cs can be stacked with the alignment of the cell Cs maintained constant.

[0092] As a result, even when multiple cell units C are stacked on the mounting plate 10, the position of the reference portion used to determine the stacking position of the cell units C is maintained, allowing the cell unit stacking device 1 to stack the cell units C more accurately even if the mounting plate 10 descends according to the stacking of the cell units C. Furthermore, when the cell units C are not stacked in the correct position, the cell unit stacking device 1 can stack the cell units C more accurately by readjusting the stacking operation.

[0093] Hereinafter, another embodiment of the cell battery C stacking method according to this disclosure will be described. This other embodiment of the cell battery C stacking method according to this disclosure involves stacking a plurality of cell batteries C using the cell battery stacking apparatus 1 described above according to an embodiment of this disclosure. Some content overlapping with the above-described cell battery stacking apparatus 1 according to an embodiment of this disclosure will be omitted below.

[0094] Figure 9 This is a flowchart of a cell C stacking method according to another embodiment of the present disclosure.

[0095] Reference Figure 9 A more precise cell C stacking process can be performed using a cell C stacking method according to another embodiment of this disclosure. For example, with the cell C stacking method, the cell C can be stacked in a more accurate position based on the position information of the cell C and the position information of the stacked portion of the cell C.

[0096] The cell stacking method may include a stacking step S10, a measurement step S20, and a control step S30.

[0097] In the stacking step S10, as the cell C is stacked into multiple units on the mounting plate 10 via the stacking unit 13, the mounting plate 10 can move downward along the guide unit 11 that is connected through the mounting plate 10.

[0098] In the stacking step S10, the mounting plate 10 can be moved downward along the guide unit 11 through the connecting holes 100 that are connected to the guide unit 11 at each corner. When the mounting plate 10 moves downward along the guide unit 11, the guide unit 11 can be configured to protrude upward from the mounting plate 10.

[0099] In measurement step S20, the measurement unit 12 can measure the position information of the guide unit 11 and the position information of the cell battery C. For example, the measurement unit 12 can view the stacked cell batteries C while positioned above the mounting plate 10.

[0100] In measurement step S20, the measurement unit 12 can measure the center position information of the multiple guide units 11. Specifically, the measurement unit 12 can measure the first reference point R1 where multiple imaginary lines connecting the multiple guide units 11 intersect. More specifically, when viewed from above, the measurement unit 12 can measure the intersection point of the multiple imaginary lines connecting the multiple guide units 11 that intersect with each other as the first reference point R1.

[0101] In measurement step S20, the measurement unit 12 can measure the center position information of the cell C. Specifically, the measurement unit 12 can measure a second reference point R2, which is the center point of the uppermost cell C among the multiple stacked cell Cs.

[0102] In control step S30, control unit 14 can control the operation of stacking unit 13 based on the position information of guide unit 11 and cell battery C measured in measurement step S20. Control unit 14 can readjust the stacking operation of stacking unit 13 by comparing the position information of guide unit 11 measured by measurement unit 12 with the position information of cell battery C.

[0103] Control step S30 may include judgment step S31 and adjustment step S32.

[0104] In the determination step S31, the control unit 14 can determine whether the first reference point R1 and the second reference point R2 coincide. In other words, the control unit 14 can receive information about the first reference point R1 and the second reference point R2 measured by the measurement unit 12, and can determine whether the first reference point R1 and the second reference point R2 coincide in position.

[0105] When the control unit 14 determines in the judgment step S31 that the first reference point R1 and the second reference point R2 do not coincide, the control unit 14 can readjust the stacking operation of the stacking unit 13 in the adjustment step S32. That is, the control unit 14 can control the stacking unit 13 so that the first reference point R1 and the second reference point R2 coincide. In other words, the stacking unit 13 can stack the cell batteries C so that the first reference point R1 and the second reference point R2 coincide through the control unit 14. In short, the center position of the multiple guiding units 11 can be the same as the center position of the cell batteries C stacked on the mounting plate 10.

[0106] The above description is merely an illustrative description of the technical ideas in this disclosure, and various modifications and changes may be made by those skilled in the art without departing from the basic characteristics of this disclosure.

[0107] Therefore, the embodiments disclosed in this disclosure are not intended to limit the technical ideas of this disclosure, but are for illustrative purposes, and the scope of the technical ideas of this disclosure is not limited to these embodiments.

[0108] The scope of protection of this disclosure shall be interpreted in accordance with the following claims, and all technical ideas within the same scope shall be interpreted as being included within the scope of this disclosure.

[0109] [Reference Marker Explanation]

[0110] 1: Cell stacking device

[0111] 10: Installation board

[0112] 11: Guiding Unit

[0113] 12: Measurement Unit

[0114] 13: Stacking Units

[0115] 14: Control Unit

[0116] 100: Connecting hole

[0117] C: Cell

[0118] R1: First reference point

[0119] R2: Second reference point

[0120] S10: Stacking Steps

[0121] S20: Measurement Procedure

[0122] S30: Control Procedure

[0123] S31: Judgment Step

[0124] S32: Adjustment Steps

Claims

1. A cell stacking device, comprising: A mounting plate on which multiple cell units are sequentially arranged so as to be stacked on top of each other; A guiding unit, which is connected to the mounting plate and guides the downward movement of the mounting plate; The measuring unit measures the position information of the guiding unit and the position information of the unit battery; as well as A stacking unit that stacks the plurality of cell batteries on the mounting plate based on the position information of the guide unit and the position information of the cell batteries measured by the measuring unit.

2. The cell stacking device according to claim 1, The mounting plate includes a connecting hole formed through each corner, and The guide unit is connected through the connection hole.

3. The cell stacking device according to claim 2, As the multiple cell units are stacked on the mounting plate, the mounting plate moves downward along the guide unit.

4. The cell stacking device according to claim 3, The guide units are formed in plurality, so as to be disposed at each corner of the mounting plate, and The measuring unit measures a first reference point where multiple imaginary lines connecting the plurality of guide units intersect, and measures a second reference point that serves as the center point of the uppermost cell among the plurality of stacked cell cells.

5. The cell stacking device according to claim 4, The stacking units are stacked such that the first reference point coincides with the second reference point.

6. The cell stacking device according to claim 4, further comprising: A control unit controls the operation of the stacked unit based on the position information of the guide unit and the position information of the unit battery measured by the measuring unit.

7. The cell stacking device according to claim 6, The control unit determines whether the first reference point and the second reference point coincide.

8. The cell stacking device according to claim 6, When it is determined that the first reference point and the second reference point do not coincide, the control unit readjusts the stacking operation of the stacking unit.

9. The cell stacking device according to claim 3, When the mounting plate moves downward along the guide unit, the guide unit is configured to protrude upward from the mounting plate.

10. The cell stacking device according to claim 9, The stacking unit sequentially stacks the plurality of cell units on the mounting plate such that the top surface height of the uppermost cell unit is the same as the top surface height of the guiding unit.

11. The cell stacking device according to claim 3, The top surface height of the guide unit remains constant.

12. The cell stacking device according to claim 2, The connection hole is formed through the plurality of cell units along their stacking direction, and The mounting plate moves along the guide unit in a direction parallel to the stacking direction of the plurality of cell units.

13. The cell stacking device according to claim 1, The guiding units are formed in multiple ways, and The center position of the plurality of guiding units is the same as the center position of the plurality of cell batteries stacked on the mounting plate.

14. A method for stacking cell units, comprising: In the stacking step, as multiple cell units are stacked on a mounting plate via stacking units, the mounting plate moves downward along a guide unit that is connected through the mounting plate. In the measurement step, the measurement unit measures the position information of the guide unit and the position information of the unit battery; as well as The control step involves the control unit controlling the operation of the stacked unit based on the position information of the guide unit and the position information of the unit battery measured in the measurement step.

15. The cell stacking method according to claim 14, In the stacking step, the mounting plate moves downward along the guide unit through the connecting holes at each corner that are connected to the guide unit.

16. The cell stacking method according to claim 15, In the measurement step, the measurement unit measures a first reference point where multiple imaginary lines connecting the plurality of guide units intersect, and measures a second reference point which is the center point of the uppermost cell among the plurality of stacked cell cells.

17. The cell stacking method according to claim 16, The control steps include: In the determination step, the control unit determines whether the first reference point and the second reference point coincide. as well as In the adjustment step, when it is determined that the first reference point and the second reference point do not coincide in the judgment step, the control unit readjusts the stacking operation of the stacking unit.

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