Packaging apparatus of pouch type stack cell assembly

Abstract

The disclosed invention relates to a pouch-type stack cell packaging device in which a plurality of pouch-type stack cells are stacked and a pouch-type stack cell assembly is inserted and installed in a module frame to assemble the assembly, comprising: a support frame having an assembly space formed in the central part and left and right upper plates respectively arranged opposite to the assembly space as a frame forming the main body; a cell pressing device installed on the left and right upper plates of the support frame to press and fix both sides of the pouch-type stack cell assembly in the stacking direction of the pouch-type stack cell; a module frame lifting device provided to be vertically movable toward the cell pressing device and having a module frame installed on the upper surface on which the pouch-type stack cell assembly is seated; and a sagging prevention device provided at the bottom of the cell pressing device to support the lower surface of the pouch-type stack cell assembly pressed and fixed by the cell pressing device to prevent lower sagging of the pouch-type stack cells located in the central part.

Description

Technology Field

[0001] The present invention relates to a pouch-type stack cell packaging device.

[0002] More specifically, the invention relates to a pouch-type stack cell packaging device capable of aligning a plurality of pouch-type stack cells, stacked to form a pouch-type stack cell assembly, without sagging and installing them on a module frame during a packaging process for modularizing a pouch-type stack cell assembly. Background Technology

[0003] Recently, rechargeable secondary batteries are being widely used as an energy source for wireless mobile devices.

[0004] Furthermore, secondary batteries are attracting attention not only as an energy source for portable devices such as mobile phones, laptops, and camcorders, but also for electric vehicles and hybrid electric vehicles, which are being proposed as solutions to address air pollution caused by conventional gasoline and diesel vehicles that use fossil fuels.

[0005] Therefore, the types of applications using secondary batteries are becoming highly diversified due to their advantages, and it is expected that secondary batteries will be applied to many more fields and products in the future than they are now.

[0006] These secondary batteries are classified into lithium-ion batteries, lithium-ion polymer batteries, and lithium-polymer batteries depending on the composition of the electrodes and electrolytes; the use of lithium-ion polymer batteries is increasing because they have a low risk of electrolyte leakage and are easy to manufacture.

[0007] Generally, secondary batteries are classified according to the shape of the battery case into cylindrical batteries and prismatic batteries, in which the electrode assembly is embedded in a cylindrical or prismatic metal can, and pouch-type battery cells, in which the electrode assembly is embedded in a pouch-type case made of aluminum laminate sheets.

[0008] In addition, the electrode assembly embedded in the battery case is a power generation element capable of charging and discharging, having a structure comprising a positive plate, a negative plate, and a separator interposed between the positive plate and the negative plate. It is classified into a jelly roll type, which is wound with a separator interposed between long sheet-type positive plates and negative plates coated with respective active materials, and a stack type, which is formed by sequentially stacking a plurality of positive plates and negative plates of a predetermined size with a separator interposed between them.

[0009] Here, a pouch-type battery cell is manufactured by embedding an electrode assembly, in which a positive plate and a negative plate are alternately stacked with a separator in between, together with an electrolyte in a pouch-type case to produce a pouch-type stack cell.

[0010] These pouch-type stack cells are manufactured by stacking multiple units to form a pouch-type stack cell assembly, and then modularized by performing a packaging process in which the manufactured pouch-type stack cell assembly is installed and assembled into a module frame.

[0011] Meanwhile, in the packaging process, to improve the energy density of the pouch-type stack cell assembly, the number of pouch-type stack cells forming the pouch-type stack cell assembly was increased, and after manufacturing a large number of pouch-type stack cells into a pouch-type stack cell assembly, the manufactured pouch-type stack cell assembly was packaged in a module frame.

[0012] That is, as illustrated in FIG. 1, the existing pouch-type stack cell packaging device (10) presses both sides of the pouch-type stack cell assembly (11) with a cell pressurizing device (13), and then moves a module frame lifting device (15), which has a module frame (15a) installed on its upper surface, toward the pressurized pouch-type stack cell assembly (11), thereby inserting and installing the pouch-type stack cell assembly (11) into the module frame (15a).

[0013] At this time, if the number of pouch-type stack cells forming the pouch-type stack cell assembly is large or heavy, the pouch-type stack cells located in the center of the assembly may sag downward due to their own weight, which can disrupt the stacking arrangement of the pouch-type stack cells and cause an internal short circuit.

[0014] In addition, there was a problem that in severe cases, pouch-type stack cells placed in the center of the pouch-type stack cell assembly could fall downwards and be damaged. Prior art literature

[0015] Republic of Korea Registered Patent No. 10-1360072 The problem to be solved

[0016] The present invention aims to solve the problems described above by providing a pouch-type stack cell packaging device capable of aligning a plurality of pouch-type stack cells, stacked to form a pouch-type stack cell assembly, without sagging and installing them on a module frame during a packaging process for modularizing a pouch-type stack cell assembly.

[0017] In addition, the present invention aims to provide a pouch-type stack cell packaging device that can prevent pouch-type stack cells located in the center of a pouch-type stack cell assembly from sagging downward due to their own weight by supporting the lower surface of a plurality of pouch-type stack cells stacked to form a pouch-type stack cell assembly with a sagging prevention device. means of solving the problem

[0018] To achieve the above-mentioned objectives, the present invention comprises a pouch-type stack cell packaging device in which a plurality of pouch-type stack cells are stacked and a pouch-type stack cell assembly is inserted and installed in a module frame for assembly, wherein the device comprises: a support frame having an assembly space formed in the central part and left and right upper plates respectively arranged opposite to the assembly space; a cell pressing device installed on the left and right upper plates of the support frame to press and fix both sides of the pouch-type stack cell assembly in the stacking direction of the pouch-type stack cells; a module frame lifting device provided to be vertically movable toward the cell pressing device and having a module frame installed on the upper surface on which the pouch-type stack cell assembly is seated; and a sagging prevention device provided at the bottom of the cell pressing device to support the lower surface of the pouch-type stack cell assembly pressed and fixed by the cell pressing device, thereby preventing lower sagging of the pouch-type stack cells located in the central part.

[0019] Specifically, the sagging prevention device includes a sagging prevention sheet installed on the lower surface of a pouch-type stack cell assembly in the stacking direction of the pouch-type stack cell, and a pair of sheet fixing devices that fix both ends of the sagging prevention sheet so as to be vertically movable.

[0020] As an example, the anti-sagging sheet is either a plastic sheet or a polycarbonate sheet.

[0021] As an example, the seat fixing device includes an installation part installed on the outer side of the left and right upper plates, a lifting part provided to be vertically movable in the installation part, and a fixing part provided in the lifting part to fix the end of the sagging prevention sheet.

[0022] As a specific example, the installation part includes a vertical plate provided vertically on the side of the support frame, a horizontal plate provided horizontally on the vertical plate, and a connecting plate connecting the vertical plate and the horizontal plate, and a plurality of movable holes are formed in the horizontal plate at regular intervals.

[0023] As a specific example, the lifting member includes a cylinder member vertically provided on the lower part of a horizontal plate, and a lifting member that moves up and down with the lower surface center connected to the piston of the cylinder member, and the piston moves up and down on a moving hole formed through the center of the horizontal plate.

[0024] As another specific example, guide pieces are provided on both sides of the lower surface of the lifting member, guide plates are installed on movable holes formed through both sides of the horizontal plate, and a guide hole of the same diameter as the guide piece is formed through the center of the guide plate so that the guide piece can be movably installed.

[0025] As another specific example, the fixing member includes a pair of fixing pieces provided on the upper surface of the lifting member and detachably coupled to fix the end of the sagging prevention sheet in a zigzag shape, and a protruding piece formed to protrude vertically from the center of the vertical plate.

[0026] As another example, the sheet fixing device includes a tensioning part that is vertically movable and provided on the outer side of the left and right upper plates, respectively, and a fixing part provided on the tensioning part to fix the end of the sagging prevention sheet.

[0027] As a specific example, the tension member includes a cylinder member installed vertically on the side of the support frame, and a lifting member connected to the lower center of the piston of the cylinder member to move up and down.

[0028] As another specific example, the fixing member is provided with a pair of fixing pieces that are detachably coupled to be installed on the side of the cylinder member to fix the end of the sagging prevention sheet in a zigzag shape.

[0029] As another example, in a module frame lifting device, a cutting device is provided on each of the upper surfaces on both sides in the stacking direction of the pouch-type stack cell to cut the exposed portion of the anti-sagging sheet extending outside the lower surface of the pouch-type stack cell assembly. Effects of the invention

[0030] According to the present invention, in a packaging process for modularizing a pouch-type stack cell assembly, a plurality of pouch-type stack cells stacked to form a pouch-type stack cell assembly can be aligned without sagging and installed on a module frame.

[0031] In addition, the present invention prevents pouch-type stack cells located in the center of the pouch-type stack cell assembly from sagging downward due to their own weight, thereby enabling stable assembly of the pouch-type stack cell assembly within the module frame and securing mass production and process stability for the modularization of the pouch-type stack cell assembly. Brief explanation of the drawing

[0032] FIG. 1 is a front view schematically showing a pouch-type stack cell packaging device according to the prior art. FIG. 2 is a perspective view schematically showing a pouch-type stack cell packaging device according to one embodiment of the present invention. FIG. 3 is a front view schematically showing a pouch-type stack cell packaging device according to one embodiment of the present invention. FIG. 4 is a schematic plan view illustrating a pouch-type stack cell packaging device according to one embodiment of the present invention. FIG. 5 is a schematic diagram showing an enlarged view of a sagging prevention device of a pouch-type stack cell packaging device according to one embodiment of the present invention. FIG. 6 is a schematic perspective view showing a module frame in which a pouch-type stack cell assembly is installed in a pouch-type stack cell packaging device according to one embodiment of the present invention. FIGS. 7 and 8 are schematic diagrams illustrating a packaging process for installing a pouch-type stack cell assembly into a module frame through a pouch-type stack cell packaging device according to the present embodiment. FIG. 9 is a front view schematically showing a pouch-type stack cell packaging device according to another embodiment of the present invention. FIG. 10 is a schematic diagram showing an enlarged view of a sagging prevention device of a pouch-type stack cell packaging device according to another embodiment of the present invention. Specific details for implementing the invention

[0033] The present invention will be described in detail below. Prior to this, terms or words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings. Instead, based on the principle that the inventor may appropriately define the concepts of terms to best describe their invention, they must be interpreted in a meaning and concept consistent with the technical spirit of the present invention.

[0034] Terms such as "comprising" or "having," as used throughout the specification of the present invention, are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0035] Furthermore, when a part such as a layer, film, region, or plate is described as being "on" another part, this includes not only cases where it is "immediately above" the other part, but also cases where there is another part in between. Conversely, when a part such as a layer, film, region, or plate is described as being "under" another part, this includes not only cases where it is "immediately below" the other part, but also cases where there is another part in between. Additionally, in the specification of the present invention, being "placed on" may include cases where it is placed on the lower part as well as the upper part.

[0036] (First embodiment)

[0037] FIG. 2 is a schematic perspective view of a pouch-type stack cell packaging device according to an embodiment of the present invention. FIG. 3 is a schematic front view of a pouch-type stack cell packaging device according to an embodiment of the present invention. FIG. 4 is a schematic plan view of a pouch-type stack cell packaging device according to an embodiment of the present invention. FIG. 5 is a schematic enlarged view of a sagging prevention device of a pouch-type stack cell packaging device according to an embodiment of the present invention. FIG. 6 is a schematic perspective view of a module frame on which a pouch-type stack cell assembly is installed in a pouch-type stack cell packaging device according to an embodiment of the present invention. FIG. 7 and FIG. 8 are schematic drawings illustrating a packaging process of installing a pouch-type stack cell assembly on a module frame through a pouch-type stack cell packaging device according to the present embodiment.

[0038] The pouch-type stack cell packaging device according to the present invention is intended to package and modularize a pouch-type stack cell assembly (3) manufactured by stacking a plurality of pouch-type stack cells, each having an electrode assembly formed by alternately stacking a positive plate and a negative plate with a separator in between, and embedded in a pouch-type case.

[0039] As illustrated in FIGS. 2 to 4, a pouch-type stack cell packaging device (1) according to one embodiment of the present invention includes a support frame (100), a cell pressurizing device (200), a module frame lifting device (300), and a sagging prevention device (500).

[0040] The above support frame (100) is a frame forming the main body, and an assembly space (101) is formed in the central part, and left and right upper plates (103a, 103b) are respectively provided so as to be horizontally positioned above the assembly space (101) and positioned opposite to the assembly space (101).

[0041] Here, the support frame (100) may be provided with a movable member (105) including a wheel at each lower edge, and a fixing member (107) for fixing the support frame (100) may be provided at each lower part of the support frame (100).

[0042] The cell pressurizing device (200) is installed on the left and right upper plates (103a, 103b) of the support frame (100) and presses both sides of the pouch-type stack cell assembly (3) in the stacking direction of the pouch-type stack cell (3a) to fix them.

[0043] Specifically, as illustrated in FIG. 5, the cell pressurizing device (200) comprises a pressurizing support (201) provided symmetrically on the left and right upper plates (103a, 103b) of the support frame (100), a connecting member (203) connecting the upper portions of each pressurizing support (201), a pressurizing piece (205) provided to be movable in the horizontal direction on each pressurizing support (201), a pressurizing plate (207) provided at one free end of each pressurizing piece (205) to press both sides of the pouch-type stack cell assembly (3), and a pressurizing part (208) provided at the other end of each pressurizing piece (205) to move the pressurizing piece (205) in the stacking direction of the pouch-type stack cell (3a).

[0044] Here, the pressure support (201) is formed in the shape of a bracket and is formed vertically on the left and right upper plates (103a, 103b) of the support frame (100), respectively, and a connecting member (203) is provided on each upper side of each pressure support (201) to connect each pressure support (201).

[0045] And, the pressure piece (205) is a rod-shaped body and is provided on each pressure support (201) and is configured to move horizontally toward the assembly space (101) of the support frame (100).

[0046] Meanwhile, the pressure plate (207) is a plate-shaped body and, as the pressure piece (205) moves in the horizontal direction, it presses the center of both sides of the pouch-type stack cell assembly (3) in the stacking direction of the pouch-type stack cell (3a).

[0047] The pressurizing unit (208) is for moving each pressurizing piece (205) in the stacking direction of the pouch-type stack cell (3a), and may consist of a rack gear (not shown) formed on the outer circumference of each pressurizing piece (205) and a pinion gear (not shown) that meshes with the rack gear.

[0048] As a result, the rotational motion of the pinion gear is converted into linear motion, and each pressure piece (205) having a rack gear moves in the stacking direction of the pouch-type stack cell (3a), thereby applying pressure to the pouch-type stack cell assembly (3).

[0049] Here, it is preferable that the pinion gear be driven by a motor (not shown) controllable by a control unit (not shown), but it is also possible to provide a handle member (not shown) perpendicular to the pinion gear and to press the pouch-type stack cell assembly (3) by having the operator rotate the handle member to move each pressing piece (205) in the stacking direction of the pouch-type stack cell (3a).

[0050] A module frame lifting device (300) is installed on the assembly space (101) of a support frame (100) and is configured to be able to move up and down toward a cell pressurizing device (200) located on the upper part of the assembly space (101), and a module frame (400) is installed on which a pouch-type stack cell assembly (3) is seated on the upper surface.

[0051] To this end, the module frame lifting device (300) includes a lifting plate (301) on which a module frame (400) is installed on the upper surface, and a driving motor (303) connected to the lifting plate (301) to lift the lifting device (300) toward a fixed pouch-type stack cell assembly (3) that is pressed by a cell pressing device (200).

[0052] Here, a mounting piece (not shown) may be formed protrudingly on the upper surface of the lifting plate (301) in a shape that surrounds the lower edge of the module frame (400) so as to accurately mount the module frame (400).

[0053] Meanwhile, as illustrated in FIG. 6, the module frame (400) installed on the lifting plate (301) is formed in a roughly "U" shape, comprising a base frame (401) on which a pouch-type stack cell assembly (3) is seated, and a pair of side frames (403) that are formed with both sides corresponding to both sides of the pouch-type stack cell assembly (3) open and extend from the front and rear ends of the base frame (401), respectively.

[0054] Here, the module frame (400) does not necessarily have to be identical to a "U" shape and may include all shapes similar to a "U" shape, but is not limited thereto and can be formed in various shapes.

[0055] The sagging prevention device (500) is provided at the bottom of the cell pressurizing device (200) to prevent a plurality of pouch-type stack cells (3a) forming a pouch-type stack cell assembly (3) from sagging toward the module case lifting device (300).

[0056] That is, the sagging prevention device (500) supports the lower surface of the pouch-type stack cell assembly (3) which is pressurized and fixed by the cell pressurizing device (200), thereby preventing the lower sagging of the pouch-type stack cells (3a) located in the central part of the pouch-type stack cell assembly (3).

[0057] Specifically, the sagging prevention device (500) includes a sagging prevention sheet (500a) installed in the stacking direction of the pouch-type stack cell (3a) on the lower surface of the pouch-type stack cell assembly (3), and a pair of sheet fixing devices (500b) that fix both ends of the sagging prevention sheet (500a) so as to be vertically movable.

[0058] Here, the anti-sagging sheet (500a) may be either a plastic sheet or a polycarbonate (PC) sheet.

[0059] And, the sheet fixing device (500b) includes an installation part (510) installed on the outer side in the width direction of the left and right upper plates (103a, 103b), a lifting part (530) provided to be vertically movable on the installation part (510), and a fixing part (550) provided on the lifting part (530) to fix the end of the sagging prevention sheet (500a).

[0060] Specifically, the installation part (510) includes a vertical plate (511) vertically provided on the side of the support frame (100), a horizontal plate (513) horizontally provided on the vertical plate (511), and a connecting plate (515) connecting the vertical plate (511) and the horizontal plate (513).

[0061] Here, the installation part (510) is formed in the shape of a bracket and is provided on the side of the support frame (100) adjacent to the left and right upper plates (103a, 103b), and is located on the same line as the pressure piece (205).

[0062] In addition, a plurality of movable holes (513a, 513b, 513c) are formed through the horizontal plate (513) at regular intervals along the longitudinal direction. In this embodiment, a movable hole (513a) is formed in the center of the horizontal plate (513), and other movable holes (513b, 513c) are formed on each side of the movable hole (513a), but this is not limited thereto and various other modifications are possible.

[0063] The lifting unit (530) maintains tension by pulling both ends of the anti-sagging sheet (500a) by lifting so as not to wrinkle or deform the anti-sagging sheet (500a) installed on the lower surface of the pouch-type stack cell assembly (3).

[0064] To this end, the lifting unit (530) includes a cylinder member (531) vertically provided at the bottom of the horizontal plate (513), and a lifting member (533) connected to the piston (531a) of the cylinder member (531) and moving up and down in a vertical direction.

[0065] Here, the piston (531a) moves up and down on the moving hole (513a) formed in the center of the moving holes (513a, 513b, 513c) that are formed at regular intervals along the longitudinal direction of the horizontal plate (513). To this end, the diameter of the piston (531a) may be formed to be smaller than or equal to the diameter of the moving hole (513a).

[0066] Meanwhile, guide pieces (533a) are provided on both sides of the lower surface of the lifting member (533), and guide plates (535) are installed on each of the moving holes (513b, 513c) formed on both sides of the moving hole (513a) formed in the center of the horizontal plate (513).

[0067] And, a guide hole (535a) with a diameter equal to the diameter of the guide piece (533a) is formed through the center of each guide plate (535) so that the guide piece (533a) can be movably installed.

[0068] By the structure described above, when the piston (531a) of the cylinder member (531) moves up and down on the moving hole (513a), each guide piece (533a) moves up and down on the guide hole (535a), thereby stably guiding and supporting the lifting member (533).

[0069] The fixing part (550) is provided on the lower surface of the pouch-type stack cell assembly (3) to fix the end of the sagging prevention sheet (500a) which prevents sagging of the pouch-type stack cell (3a).

[0070] Specifically, the fixing part (550) includes a pair of fixing pieces (551a, 551b) that are detachably coupled to fix the end of the sagging prevention sheet (500a) in a zigzag shape and are provided on the upper surface of the lifting member (533), and a protruding piece (553) that is formed to protrude vertically upward in the center of the vertical plate (511) and contacts the lower surface of the end of the sagging prevention sheet (500a) as the fixing pieces (551a, 551b) descend.

[0071] Here, a pair of fixed pieces (551a, 551b) are detachably installed on the lifting member (533) by a fastening member (not shown), and a coupling groove is formed in the center of the vertical plate (511) for the protruding piece (553) to be coupled.

[0072] Hereinafter, a packaging process for installing a pouch-type stack cell assembly on a module frame using a pouch-type stack cell packaging device according to an embodiment of the present invention will be schematically described with reference to FIGS. 2, 7, and 8.

[0073] First, a pouch-type stack cell assembly (3) in which a plurality of pouch-type stack cells (3a) are stacked is installed in the cell pressurizing device (200).

[0074] At this time, an adhesive material is applied to the contact surface of each pouch-type stack cell (3a), or a double-sided tape having adhesive surfaces on both sides is attached to fix the pouch-type stack cells (3a) and form a stacked pouch-type stack cell assembly (3).

[0075] In this way, a pouch-type stack cell assembly (3) is installed in a cell pressure device (200) such that both sides of the pouch-type stack cell assembly (3), formed by stacking multiple pouch-type stack cells (3a) in the thickness direction of the pouch-type stack cells (3a), are pressed and fixed to each pressure plate (207).

[0076] Meanwhile, the installation of the pouch-type stack cell assembly (3) on the cell pressurizing device (200) is performed by first installing the pouch-type stack cell assembly (3) on the module frame lifting device (300), and then driving the drive motor (303) so that the module frame lifting device (300) rises toward the cell pressurizing device (200).

[0077] Next, each pressure piece (205) is moved onto the assembly space (101) by the driving of the pressure member (208), and each pressure plate (207) provided at the free end of the pressure piece (205) presses and fixes both sides of the pouch-type stack cell assembly (3), thereby installing the pouch-type stack cell assembly (3) in the cell pressure device (200).

[0078] As described above, a pouch-type stack cell assembly (3) is installed in the cell pressurizing device (200), and a module frame (400) in the shape of a roughly "U" is installed in the module frame lifting device (300).

[0079] At this time, the module frame (400) is positioned so that the parts formed open on both sides are located in the stacking direction of the pouch-type stack cell (3a).

[0080] Then, a sagging prevention sheet (500a) is installed in the thickness direction of the pouch-type stack cell (3a) at the center of the lower surface of the pouch-type stack cell assembly (3).

[0081] At this time, it is preferable that the sagging prevention sheet (500a) be supplied to the sagging prevention device (500) in a rolled state and installed at the bottom of the cell pressurizing device (200). To this end, the sagging prevention sheet (500a) may be installed in a rolled state on a supply roller (not shown) provided on the side of the support frame (100).

[0082] Specifically, the above-mentioned anti-sagging sheet (500a) is installed on a supply roller provided on the side of the support frame (100) while wound in a roll type, and can be provided as a cartridge type that can be replaced after use.

[0083] Here, the anti-sagging sheet (500a) is fixedly installed on each fixing part (550) of a pair of sheet fixing devices (500b) to prevent lower sagging of the pouch-type stack cells (3a) located in the center of the pouch-type stack cell assembly (3), and at the same time, by applying tension to the anti-sagging sheet (500a) by the lifting of the lifting part (530), the anti-sagging sheet (500a) can be prevented from being crumpled or deformed.

[0084] Specifically, the anti-sagging sheet (500a) is fixed in a zigzag shape to a pair of fixing pieces (551a, 551b) provided on one of the pair of sheet fixing devices (500a, 500b), and after the lower surface is seated on the protruding piece (553), it is fixed in a zigzag shape to a pair of fixing pieces (551a, 551b) provided on the other sheet fixing device (500a) across the center of the lower surface of the pouch-type stack cell assembly (3).

[0085] At this time, both ends of the anti-sagging sheet (500a) fixed to a pair of fixed pieces (551a, 551b) are pulled downward by the lowering of the lifting member (533) driven by the cylinder member (531), and the tension is adjusted so that they are installed flat on the lower surface of the pouch-type stack cell assembly (3).

[0086] In this way, by installing a sagging prevention sheet (500a) made of a plastic sheet or a polycarbonate sheet on the lower surface of the pouch-type stack cell assembly (3), the lower sagging of the pouch-type stack cells (3a) located in the central part of the pouch-type stack cell assembly (3) can be prevented.

[0087] As described above, after installing a sagging prevention sheet (500a) on the lower surface of the pouch-type stack cell assembly (3) that has been pressurized by the cell pressurizing device (200), the drive motor (303) is driven to raise the lifting plate (301) on which the module frame (400) is installed so that it faces the cell pressurizing device (200), thereby installing the pouch-type stack cell assembly (3) on the module frame (400).

[0088] At this time, since a thermally conductive adhesive resin layer (R) is formed on both sides in the width direction of the base frame (401), the anti-sagging sheet (500a) is positioned at the center of the base frame (401) where the thermal resin is not applied, thereby minimizing interference with the thermal resin.

[0089] Here, the thermally conductive adhesive resin layer (R) may be made of silicone resin, modified silicone resin, acrylic resin, etc. Also, the thermally conductive adhesive resin layer (R) can prevent flow of the pouch-type stack cell assembly (3) installed on the base frame (401).

[0090] In addition, since the thermally conductive adhesive resin layer (R) is a thermal resin, it can efficiently absorb heat generated in the pouch-type stack cell assembly (3).

[0091] In this way, a thermally conductive adhesive resin layer (R) is formed on the module frame (400), and the pouch-type stack cell assembly (3) is packaged, thereby making the pouch-type stack cell assembly (3) modular.

[0092] Then, after the pouch-type stack cell assembly (3) and the anti-sagging sheet (500a) are installed on the module frame (400), the exposed portion of the anti-sagging sheet (500a) exposed outwardly from the lower surface of the pouch-type stack cell assembly (3) is cut.

[0093] To this end, in the module frame lifting device (300), a cutting device (not shown) is provided on each of the upper surfaces in the thickness direction of the pouch-type stack cell (3a) to cut the exposed portion of the anti-sagging sheet (500a) exposed outwardly from the lower surface of the pouch-type stack cell assembly (3).

[0094] As described above, by providing a cutting device in the module frame lifting device (300), the exposed portion of the anti-sagging sheet (500a) exposed outside the module frame (400) is cut, so that the anti-sagging sheet (500a) is positioned only on the lower surface of the pouch-type stack cell assembly (3).

[0095] Then, the module frame (400) with the pouch-type stack cell assembly (3) and the anti-sagging sheet (500a) installed is transferred to a subsequent process.

[0096] (Second embodiment)

[0097] FIG. 9 is a front view schematically showing a pouch-type stack cell packaging device according to another embodiment of the present invention. FIG. 10 is a diagram schematically showing an enlarged view of a sagging prevention device of a pouch-type stack cell packaging device according to another embodiment of the present invention.

[0098] As illustrated in FIGS. 9 and 10, the sheet fixing device (500c) of the sagging prevention device (500') in the pouch-type stack cell packaging device (1') according to the present embodiment includes a tensioning part (560) which is installed on the outer side in the width direction of the left and right upper plates (103a, 103b) facing the assembly space (101) and is configured to be vertically movable, and a fixing part (580) which fixes the end of the sagging prevention sheet (500a) provided in the tensioning part (560).

[0099] Here, the tension member (560) includes a cylinder member (561) installed vertically on the side of the support frame (100), and a lifting member (563) connected to the lower center of the piston (561a) of the cylinder member (561) and moving up and down in the vertical direction.

[0100] At this time, guide pieces (not shown) may be provided on both sides of the lower surface of the lifting piece (563) as in the first embodiment to guide the movement of the lifting piece (563). To this end, moving holes (not shown) may be formed on both sides of the upper surface of the cylinder member (561), and a guide plate (not shown) may be installed in which a guide hole (not shown) is formed through the moving hole, but is not limited thereto.

[0101] And, the fixing part (580) includes a pair of fixing pieces (581a, 581b) that are detachably coupled to be installed on the side of the cylinder member (561) to fix the end of the anti-sagging sheet (500a) in a zigzag shape.

[0102] In the second embodiment of the present invention, the sheet fixing device (500c) can maintain the tension of the sagging prevention sheet (500a) provided on the lower surface of the pouch-type stack cell assembly (3) by pulling both ends of the sagging prevention sheet (500a) by means of a cylinder member (561), and by means of a lifting member (563) of a tension member (560) that contacts the lower surface of the end of the sagging prevention sheet (500a) as shown in FIG. 5, without the fixing member (551a, 551b) to which the sagging prevention sheet (500a) is fixed being raised and lowered as shown in FIG. 10.

[0103] Although the present invention is illustrated and described above in relation to specific embodiments, it will be readily apparent to those skilled in the art that various modifications and changes are possible without departing from the spirit and scope of the invention as set forth in the appended claims. Explanation of the symbols

[0104] 1, 1' : Pouch-type stacked cell packaging device 3: Pouch-type stacked cell assembly 3a: Pouch-type stacked cell 100 : Support frame 101 : Assembly space 103a, 103b: Left and right top panels 105 : Moving member 107 : Fixing member 200 : Cell pressurizer 201 : Pressure support 203 : Connecting rod 205 : Pressure piece 207 : Pressure plate 208 : Pressurizing part 300 : Module frame lifting device 301 : Elevator plate 303 : Drive motor 400 : Module Frame 401 : Base Frame 403 : Side frame 500, 500' : Anti-sagging device 500a: Anti-sagging sheet 500b, 500c: Seat fixing device 510 : Installation part 511: Vertical plate 513 : Horizontal plate 513a, 513b, 513c: Moving holes 515 : Connection plate 530 : Elevator 531 : Cylinder member 531a : Piston 533 : Elevator member 533a : Guide 535 : Guide plate 535a : Guide hole 550 : Fixed part 551a, 551b: Fixed piece 553 : Protruding piece 560 : Tension part 561 : Cylinder member 561a : Piston 563 : Elevator 580 : Fixed part 581a, 581b: Fixed piece

Claims

Claim 1 A pouch-type stack cell packaging device for assembling a pouch-type stack cell assembly in which a plurality of pouch-type stack cells are stacked, by inserting and installing the assembly into a module frame, comprising: a support frame forming a main body, wherein an assembly space is formed in the central portion and left and right upper plates are respectively provided to be positioned opposite to the assembly space; a cell pressing device installed on the left and right upper plates of the support frame to press and fix both sides of the pouch-type stack cell assembly in the stacking direction of the pouch-type stack cells; and a module frame lifting device provided to be vertically movable toward the cell pressing device, wherein a module frame is installed on the upper surface on which the pouch-type stack cell assembly is seated. A pouch-type stack cell packaging device comprising: a sagging prevention device provided at the lower part of the cell pressurizing device and supporting the lower surface of a pouch-type stack cell assembly that is pressurized and fixed by the cell pressurizing device to prevent lower sagging of the pouch-type stack cells located in the central part; wherein the sagging prevention device comprises a sagging prevention sheet installed in the stacking direction of the pouch-type stack cell on the lower surface of the pouch-type stack cell assembly, and a pair of sheet fixing devices that fix both ends of the sagging prevention sheet so as to be vertically movable, and wherein the sheet fixing device comprises a fixing part that fixes the ends of the sagging prevention sheet in a zigzag shape. Claim 2 delete Claim 3 A pouch-type stack cell packaging device according to claim 1, wherein the anti-sagging sheet is either a plastic sheet or a polycarbonate sheet. Claim 4 A pouch-type stack cell packaging device according to claim 1, wherein the sheet fixing device comprises an installation part installed on the outer side of the left and right upper plates, a lifting part provided to be vertically movable in the installation part, and a fixing part provided in the lifting part to fix the end of the sagging prevention sheet. Claim 5 A pouch-type stack cell packaging device according to claim 4, wherein the installation part comprises a vertical plate vertically provided on the side of the support frame, a horizontal plate horizontally provided on the vertical plate, and a connecting plate connecting the vertical plate and the horizontal plate, and wherein a plurality of movable holes are formed in the horizontal plate at regular intervals. Claim 6 A pouch-type stack cell packaging device according to claim 5, wherein the lifting member comprises a cylinder member vertically provided on the lower part of the horizontal plate and a lifting member having a lower surface center connected to the piston of the cylinder member and moving up and down, and wherein the piston moves up and down on a movable hole formed through the center of the horizontal plate. Claim 7 A pouch-type stack cell packaging device according to claim 6, wherein guide pieces are provided on both sides of the lower surface of the lifting member, a guide plate is installed on a movable hole formed through both sides of the horizontal plate, and a guide hole having the same diameter as the guide piece is formed through the center of the guide plate so that the guide piece can be movably installed. Claim 8 A pouch-type stack cell packaging device according to claim 6, wherein the fixing member comprises a pair of fixing pieces detachably coupled to fix the end of the sagging prevention sheet in a zigzag shape and provided on the upper surface of the lifting member, and a protruding piece formed to protrude vertically from the center of the vertical plate. Claim 9 A pouch-type stack cell packaging device according to claim 1, wherein the sheet fixing device comprises a tension part each provided on the outer side of the left and right upper plates so as to be vertically movable, and a fixing part provided on the tension part for fixing the end of the sagging prevention sheet. Claim 10 A pouch-type stack cell packaging device according to claim 9, wherein the tension member comprises a cylinder member installed vertically on the side of the support frame and a lifting member having a lower surface center connected to the piston of the cylinder member and moving up and down. Claim 11 A pouch-type stack cell packaging device according to claim 10, wherein the fixing member comprises a pair of fixing pieces that are detachably coupled to be installed on the side of the cylinder member to fix the end of the sagging prevention sheet in a zigzag shape. Claim 12 A pouch-type stack cell packaging device according to claim 1, characterized in that, in the module frame lifting device, a cutting device for cutting the exposed portion of a sagging prevention sheet extending outside the lower surface of the pouch-type stack cell assembly is provided on each of the upper surfaces on both sides in the stacking direction of the pouch-type stack cell.

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