JP2024162705A - Large capacity polymer lithium ion battery packaging machine - Google Patents

Abstract

To provide a large-capacity polymer lithium ion battery packaging machine for improving a problem of reduction in efficiency of a cell packaging process.SOLUTION: A large-capacity polymer lithium ion battery packaging machine 10 includes: at least a pair of an upper packaging mechanism 120 and a lower packaging mechanism 122 provided with an interval; a first lifting mechanism 124; a cell jig for fixing a cell 160; and a conveyance mechanism connected to the cell jig in a transmittable state. Each of the upper packaging mechanism and the lower packing mechanism comprises a molding apparatus having a molding block for welding packaging materials. The molding block of the upper packaging mechanism 120 and the molding block of the lower packaging mechanism face each other with an interval in a height direction. The first lifting mechanism is used for driving the upper packaging mechanism so as to be close to or separate from the lower packaging mechanism.SELECTED DRAWING: Figure 4

Description

The present invention relates to the field of battery processing technology, and more specifically to a packaging machine for large-capacity polymer lithium-ion batteries.

In the lithium battery production process, after the cell production is completed, the packaging process must be carried out. The packaging process uses a hot press method to weld the periphery of the aluminum plastic film that surrounds the cell to form an airtight space, and then encase the cell within that space.

Large-capacity polymer lithium-ion batteries have a relatively large volume, long cell top and bottom seals, and an airbag is added to the cell body, resulting in a packaging length of typically 1200 mm, making it necessary to fabricate a molded block with a length of more than 1200 mm. This makes the packaging process difficult. Therefore, currently, packaging of large-capacity polymer lithium-ion batteries is generally performed manually, which is inefficient.

The present invention aims to provide a large-capacity polymer lithium-ion battery packaging machine that improves the problem of reduced efficiency in the cell packaging process.

An embodiment of the present invention is implemented as follows:

The large-capacity polymer lithium-ion battery packaging machine includes at least one pair of upper packaging mechanisms spaced apart and at least one pair of lower packaging mechanisms spaced apart, a first lifting mechanism, a cell jig for fixing a cell, and a transport mechanism drivably connected to the cell jig for transporting the cell jig between the upper packaging mechanism and the lower packaging mechanism, the upper packaging mechanism and the lower packaging mechanism each include a molding device having a molding block for welding packaging material, the molding block of the upper packaging mechanism and the molding block of the lower packaging mechanism face each other with a gap in the height direction, and the first lifting mechanism drives the upper packaging mechanism to approach or move away from the lower packaging mechanism in order to abut or move away the molding block of the upper packaging mechanism and the molding block of the lower packaging mechanism.

The device includes a support frame, and the first lifting mechanism and the upper packaging mechanism are each provided on the support frame, and the upper packaging mechanism further includes a first lifting guide bar, one end of which is connected to a first fixed plate of the upper packaging mechanism and extends along the lifting direction of the upper packaging mechanism, and the first lifting guide bar passes through a through hole in the support frame.

The transport mechanism includes a screw, a guide rail, and a drive unit for driving the rotation of the screw, the cell jig is screw-connected to the screw and slidably connected to the guide rail, and the extension direction of the screw coincides with the extension direction of the guide rail.

The cell jig includes a mounting plate for mounting the cell and a pressing mechanism for pressing the cell, the pressing mechanism being provided above the mounting plate.

The pressing mechanism includes a pressing cylinder that can expand and contract vertically.

The cell jig includes a base plate that is slidably connected to the guide rail and is screw-connected to the screw, and the mounting plate is movably connected to the upper surface of the base plate via a second lifting mechanism for raising and lowering the mounting plate.

A second lift guide bar is provided on the underside of the mounting plate, perpendicular to the mounting plate, and the second lift guide bar is inserted into a through hole in the substrate and slidably connected to the substrate.

The mounting plate has a pair of clearance grooves to allow the molding blocks of the lower packaging mechanism to pass through.

The mounting plate is provided with two positioning blocks for clamping the pole tabs of the cells.

The molding block is provided with a heating device for heating the molding block.

The beneficial effects of the embodiment of the present invention are as follows:

A large-capacity polymer lithium-ion battery packaging machine according to an embodiment of the present invention includes at least one pair of upper packaging mechanisms spaced apart from each other and at least one pair of lower packaging mechanisms spaced apart from each other, a first lifting mechanism, a cell jig for fixing a cell, and a conveying mechanism operably connected to the cell jig. The upper packaging mechanism and the lower packaging mechanism each include a molding device having a molding block for welding a packaging material, and the molding block of the upper packaging mechanism and the molding block of the lower packaging mechanism face each other with a gap in the height direction. The first lifting mechanism drives the upper packaging mechanism to approach or move away from the lower packaging mechanism in order to bring the molding block of the upper packaging mechanism into contact with or away from the molding block of the lower packaging mechanism. When the molding blocks of the upper packaging mechanism and the lower packaging mechanism come into contact with each other, an aluminum plastic film can be welded to achieve a packaging effect. The conveying mechanism is used to carry the cell jig between the upper packaging mechanism and the lower packaging mechanism. The large-capacity polymer lithium-ion battery packaging machine of the present invention realizes the functions of clamping, transporting, and packaging cells, and can significantly improve battery packaging efficiency.

In order to more clearly describe the technical solutions of the embodiments of the present invention, the following briefly describes the necessary drawings used in the embodiments. The following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limitations on the scope of the present invention, and it should be understood that those skilled in the art can obtain other related drawings based on these drawings without creative efforts.
FIG. 2 is a schematic diagram of a first viewing angle of a molding apparatus according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a second viewing angle of a molding apparatus according to an embodiment of the present invention. FIG. 2 is an enlarged view of a region III in FIG. FIG. 2 is a schematic diagram of a first viewing angle of a large-capacity polymer lithium ion battery packaging machine according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a second viewing angle of the large-capacity polymer lithium ion battery packaging machine according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a third viewing angle of the large-capacity polymer lithium ion battery packaging machine according to an embodiment of the present invention; FIG. 7 is an enlarged view of a local area VII in FIG. 6 .

In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be described clearly and comprehensively below with reference to the drawings of the embodiments of the present invention. Of course, the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments. In general, the components of the embodiments of the present invention described and shown in the drawings herein may be laid out and designed in various different configurations.

Therefore, the detailed description of the embodiments of the present invention provided in the following drawings does not limit the scope of the invention to be protected, but merely represents a preferred embodiment of the present invention. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without any creative effort also fall within the scope of protection of the present invention.

It should be noted that like numerals and letters indicate like components in the following drawings, so that once a component is defined in one drawing, it does not require further definition and interpretation in subsequent drawings.

In the description of the embodiments of the present invention, the orientations or positional relationships indicated by terms such as "upper", "lower", "vertical", and "horizontal" are the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the product of the present invention is normally disposed when in use, and are merely intended to facilitate and simplify the description of the present invention. They do not expressly or imply that such devices or elements have a specific orientation, or must be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention. In addition, terms such as "first", "second", and "third" are used merely to distinguish between expressions, and are not understood to express or imply relative importance.

In the description of the embodiments of the present invention, it should be further explained that unless otherwise clearly specified or limited, the terms "provided," "attached," "connected," and "connected" should be understood in a broad sense, and may be, for example, a fixed connection, a removable connection, or an integral connection, a mechanical connection or an electrical connection, a direct connection, an indirect connection via an intermediate medium, or internal communication between two elements. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention according to the specific circumstances.

<Example>
Fig. 4 is a schematic diagram of a first viewing angle of the packaging machine 10 for large-capacity polymeric lithium-ion batteries according to an embodiment of the present invention, Fig. 5 is a schematic diagram of a second viewing angle of the packaging machine 10 for large-capacity polymeric lithium-ion batteries according to an embodiment of the present invention, Fig. 6 is a schematic diagram of a third viewing angle of the packaging machine 10 for large-capacity polymeric lithium-ion batteries according to an embodiment of the present invention, and Fig. 7 is an enlarged view of a part VII in Fig. 6. Referring to Figs. 4 to 7, the packaging machine 10 for large-capacity polymeric lithium-ion batteries according to the present embodiment includes a base 100, a support frame 110 provided on the base 100, a packaging mechanism provided on the base 100, a conveying mechanism, and a cell jig operably connected to the conveying mechanism. In this embodiment, the packaging mechanism includes a pair of upper packaging mechanisms 120 spaced apart, a pair of lower packaging mechanisms 122 spaced apart, and a first lifting mechanism 124, and both the upper packaging mechanism 120 and the lower packaging mechanism 122 include a molding device 130 (see FIGS. 1 and 2). The upper packaging mechanism 120 is located directly above the lower packaging mechanism 122, and the upper packaging mechanism 120 is attached to the support frame 110, and a molding block 138 (see FIGS. 1 and 2) of the upper packaging mechanism 120 and the molding block 138 of the lower packaging mechanism 122 face each other with a gap in the height direction.

1 is a schematic diagram of a first viewing angle of a molding device 130 according to an embodiment of the present invention, FIG. 2 is a schematic diagram of a second viewing angle of the molding device 130 according to an embodiment of the present invention, and FIG. 3 is an enlarged view of local III in FIG. 1. Referring to FIGS. 1 to 3, the molding device 130 of this embodiment includes a first fixing plate 131, a second fixing plate 132, and a molding block 138 that are stacked. The first fixing plate 131 and the second fixing plate 132 are connected by a first bolt 133. The second bolt 134 is inserted between the first fixing plate 131 and the second fixing plate 132 by penetrating the second fixing plate 132 from the side of the second fixing plate 132 away from the first fixing plate 131. The forming block 138 is fixed to the second fixing plate 132 on the side away from the first fixing plate 131, and the forming block 138 is provided with a heating device (not shown) for applying heat to the forming block 138. In the present invention, the first bolt 133 can be tightened by providing a pre-tightening force that brings the two fixing plates closer to each other. On the other hand, the end of the second bolt 134 can be abutted against the first fixing plate 131 to provide a pre-tightening force that moves the two fixing plates away from each other when screwed. By adjusting the first bolt 133 and the second bolt 134, the position of the second fixing plate 132 relative to the first fixing plate 131 can be adjusted. In this way, when the second fixing plate 132 is deformed or has relatively poor parallelism, the forming block 138 can obtain good parallelism through the above adjustment, and the packaging effect can be improved.

In this embodiment, the first fixing plate 131 and the forming block 138 are strip-shaped to selectively seal the sides of the battery. The material of the forming block 138 is metal, selectively brass, bronze or stainless steel, and the heating device is selectively an electric heating device to apply heat to the forming block 138. The two forming blocks 138, which are at a constant temperature, can clamp and weld the edges of two pieces of packaging material (e.g., aluminum plastic film) above and below the cell 160, thereby achieving a packaging effect.

To achieve an insulating effect that prevents the first fixed plate 131 from becoming excessively hot due to thermal conduction of the molding block 138, a first insulating plate 136 is further provided between the first fixed plate 131 and the second fixed plate 132. The first insulating plate 136 is made of an insulating material such as glass fiber, asbestos, or a vacuum material.

Furthermore, an adjustment groove is provided on the side of the second fixed plate 132 facing the first fixed plate 131, and both sides of the adjustment groove penetrate to both opposing sides of the second fixed plate 132, and the adjustment groove forms a gap 135 between the second fixed plate 132 and the first insulating plate 136, and the second bolt 134 is inserted into the adjustment groove and used to abut against the surface of the first insulating plate 136. The gap 135 further reduces heat conduction from the second fixed plate 132 to the first fixed plate 131, and further increases the distance adjustment range between the middle part of the second fixed plate 132 and the first fixed plate 131, thereby improving adjustability.

In this embodiment, the molding device 130 further includes a molding block base 137 fixed to the side of the second fixing plate 132 away from the first fixing plate 131, and the molding block 138 is fixedly connected to the molding block base 137. The connection method may be connection by a fastening member such as a bolt, connection by adhesion or magnetic attraction. In this embodiment, as shown in FIG. 2, the cross-sectional shape perpendicular to the longitudinal direction of the molding block base 137 is approximately L-shaped, and the molding block 138 is attached in close contact with both side walls of the inner corner of the molding block base 137. In order to reduce heat conduction, a second insulating plate 139 is provided between the second fixing plate 132 and the molding block base 137, and the material of the second insulating plate 139 may be the same as that of the first insulating plate 136. To facilitate assembly, the first fixed plate 131, the second fixed plate 132, the first insulating plate 136, the second insulating plate 139, and the molding block base 137 are flush at both ends in the longitudinal direction of the molding block 138, and the adjustment groove penetrates both sides of the second fixed plate 132 in a direction perpendicular to the longitudinal direction of the molding block 138.

In this embodiment, the first bolts 133 and the second bolts 134 are alternately arranged at intervals in the longitudinal direction of the forming block 138, and are arranged in two rows at intervals. That is, the two rows of bolts are attached at intervals in the width direction of the forming block 138, and extend along the longitudinal direction of the forming block 138.

In this embodiment, the second fixed plate 132, the first insulating plate 136, the second insulating plate 139 and the molding block base 137 of the molding device 130 each have multiple segments, and are arranged in sequence in the longitudinal direction of the molding block 138, and the multiple second fixed plates 132 are all connected to the same molding block 138 via the multiple second insulating plates 139 and the molding block base 137. That is, the length of the molding block 138 is approximately equal to the total length of the multiple molding block bases 137 arranged in a row. In this embodiment, the second fixed plate 132, the first insulating plate 136, the second insulating plate 139 and the molding block base 137 are all divided into three segments, and both ends of the corresponding second fixed plate 132, the first insulating plate 136, the second insulating plate 139 and the molding block base 137 are flush with each other. That is, the second fixing plate 132, the first insulating plate 136, the second insulating plate 139, and the molded block base 137 all correspond one-to-one to each other for each segment. In other embodiments of the present invention, the number of segments to be divided and the length of the molded block may be adjusted according to the size of the battery to be packaged.

Referring to FIG. 4, the first lifting mechanism 124 is provided on the support frame 110 above the base 100, and the first lifting mechanism 124 drives the upper packaging mechanism 120 to approach or move away from the lower packaging mechanism 122, thereby abutting or separating the molding block 138 of the upper packaging mechanism 120 and the molding block 138 of the lower packaging mechanism 122. The molding block 138 of the upper packaging mechanism 120 and the molding block 138 of the lower packaging mechanism 122 approach and abut each other in a heated state, thereby sandwiching and welding the aluminum plastic film on the edge of the cell 160, thereby achieving a packaging effect. The two upper packaging mechanisms 120 and the two lower packaging mechanisms 122 in this embodiment can weld the aluminum plastic film on both sides of the cell 160 in one go.

In this embodiment, the first lifting mechanism 124 includes a plurality of lifting cylinders provided on the support frame 110, and the upper packaging mechanism 120 further includes a first lifting guide bar 123, one end of which is connected to the first fixed plate 131 of the upper packaging mechanism 120 and extends along the lifting direction of the upper packaging mechanism 120. The first lifting guide bar 123 passes through the through hole of the support frame 110. With this design, the upper packaging mechanism 120 can stably maintain a vertical movement during lifting and is less likely to shake horizontally and affect the packaging effect.

4 and 5, the conveying mechanism includes a screw 142, a guide rail 140, and a drive unit 144 for driving the rotation of the screw 142. In this embodiment, the conveying mechanism includes two parallel and spaced apart guide rails 140, which are provided on the base 100. The screw 142 is located between the two guide rails 140, one end of which is rotatably connected to a drive unit 144 provided on one end of the base 100, and the other end of which is rotatably connected to one mounting seat on the other end of the base 100. The extension direction of the screw 142 coincides with the extension direction of the guide rail 140. The cell jig is screw-connected to the screw 142 and slidably connected to the guide rail 140, so that the drive unit 144 can drive the cell jig so that the cell jig carries the cell 160 and moves along the guide rail 140. A portion of the guide rail 140 enters the packaging mechanism, and the cell 160 is carried between the upper packaging mechanism 120 and the lower packaging mechanism 122 by the transport mechanism, and then carried out after being packaged. In this embodiment, the drive unit 144 is optionally a stepping motor and is connected to an external power source.

The cell jig is used to fix the cell 160, and includes a substrate 150, a mounting plate 151 for mounting the cell 160, a pressing mechanism 152 for pressing the cell 160, and a second lifting mechanism 154. In this embodiment, a nut that fits with the screw 142 is provided on the underside of the substrate 150, and the substrate 150 is slidably combined with the two guide rails 140. Since the width of the substrate 150 is smaller than the distance between the two lower packaging mechanisms 122, the substrate 150 is located between the two lower packaging mechanisms 122. The mounting plate 151 is connected to the upper part of the substrate 150 via the second lifting mechanism 154. In this embodiment, the second lifting mechanism 154 is a cylinder, and four second lifting guide bars 155 perpendicular to the mounting plate 151 are provided on the underside of the mounting plate 151. The second lifting guide bars 155 are inserted into four through holes in the substrate 150 and slidably connected to the substrate 150, so that the mounting plate 151 can maintain stable vertical movement without swaying side to side when lifting or lowering.

Furthermore, the width of the mounting plate 151 is greater than the distance between the forming blocks 138 of the two lower packaging mechanisms 122. The mounting plate 151 is provided with a pair of clearance grooves 156 (see FIG. 7) for passing the forming blocks 138 of the lower packaging mechanisms 122. When the mounting plate 151 moves above the lower packaging mechanism 122 with the cell 160 loaded thereon, the mounting plate 151 descends, and the forming blocks 138 of the lower packaging mechanism 122 pass through the clearance grooves 156 from bottom to top and arrive at the positions to be sealed on both sides of the cell 160. At this time, the upper packaging mechanism 120 descends and joins with the lower packaging mechanism 122 to complete the sealing of the aluminum plastic film on both sides of the cell 160.

In this embodiment, two positioning blocks 153 are provided on one side of the mounting plate 151. The positioning blocks 153 are used to clamp the pole tabs of the cells 160 so as to position the cells 160. The pressing mechanism 152 is a pressing cylinder provided above the mounting plate 151, and the pressing cylinder presses the cells 160 downward to firmly fix the cells 160 to the upper surface of the mounting plate 151.

The operating flow of the large-capacity polymer lithium-ion battery packaging machine 10 is as follows:

The worker first places the cell 160 to be packaged on the placement plate 151, positions the cell 160 with the two positioning blocks 153, and presses the cell 160 with the pressing mechanism 152. The driving unit 144 of the transport mechanism is started to move the jig of the cell 160 to the packaging area, and after it arrives accurately at the packaging position, the second lifting mechanism 154 lowers the placement plate 151 and transports the aluminum plastic film of the lower layer of the cell 160 to the surface of the molding block 138 of the lower packaging mechanism 122. Next, the first lifting mechanism 124 is started to lower the two upper packaging mechanisms 120, and the upper packaging mechanisms 120 and the molding block 138 of the lower packaging mechanism 122 are aligned to press and weld the upper and lower layers of the aluminum plastic film of the cell 160, completing the packaging process. After packaging is completed, the upper packaging mechanism 120 is raised, and the second lifting mechanism 154 raises the mounting plate 151 to lift the cell 160 and remove it from the molding block 138 of the lower packaging mechanism 122. The drive unit 144 of the transport mechanism is restarted, and the cell 160 is pulled away from the packaging area. Next, the worker removes the packaged cell 160.

As described above, the large-capacity polymer lithium-ion battery packaging machine 10 according to the embodiment of the present invention includes at least one pair of upper packaging mechanisms 120 spaced apart, at least one pair of lower packaging mechanisms 122 spaced apart, a first lifting mechanism 124, a cell jig for fixing the cell 160, and a conveying mechanism drivably connected to the cell jig. Both the upper packaging mechanism 120 and the lower packaging mechanism 122 include a molding device 130, which includes a molding block 138 for welding the packaging material, and the molding block 138 of the upper packaging mechanism 120 and the molding block 138 of the lower packaging mechanism 122 face each other with a gap in the height direction. The first lifting mechanism 124 is used to drive the upper packaging mechanism 120 to approach or move away from the lower packaging mechanism 122 so that the forming block 138 of the upper packaging mechanism 120 and the forming block 138 of the lower packaging mechanism 122 come into contact with or move away from each other. When the upper packaging mechanism 120 and the forming block 138 of the lower packaging mechanism 122 come into contact with each other, the aluminum plastic film can be welded to achieve a packaging effect. The conveying mechanism is used to convey the cell jig between the upper packaging mechanism 120 and the lower packaging mechanism 122. The large-capacity polymer lithium-ion battery packaging machine 10 of the present invention can realize the functions of clamping, conveying, and packaging the cell 160, and can greatly improve the packaging efficiency of the battery.

The above is merely a preferred embodiment of the present invention, and is not intended to limit the present invention. Those skilled in the art will appreciate that the present invention may be modified and changed in various ways. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

10 Large-capacity polymer lithium-ion battery packaging machine 100 Base 110 Support frame 120 Upper packaging mechanism 122 Lower packaging mechanism 123 First lifting guide bar 124 First lifting mechanism 130 Forming device 131 First fixing plate 132 Second fixing plate 133 First bolt 134 Second bolt 135 Gap 136 First heat insulating plate 137 Forming block base 138 Forming block 140 Guide rail 142 Screw 144 Drive unit 150 Substrate 151 Placement plate 152 Pressing mechanism 153 Positioning block 154 Second lifting mechanism 155 Second lifting guide bar 156 Relief groove 160 Cell

Claims (10)

at least one pair of spaced apart upper packaging mechanisms and at least one pair of spaced apart lower packaging mechanisms;
A first lifting mechanism;
a cell jig for fixing the cell;
a transport mechanism that is operably connected to the cell jig and that transports the cell jig between the upper packaging mechanism and the lower packaging mechanism;
the upper packaging mechanism and the lower packaging mechanism each include a molding device having a molding block for welding a packaging material, the molding block of the upper packaging mechanism and the molding block of the lower packaging mechanism face each other with a gap in the height direction;
A large-capacity polymer lithium-ion battery packaging machine, wherein the first lifting mechanism drives the upper packaging mechanism to approach or move away from the lower packaging mechanism in order to abut or separate the forming blocks of the upper packaging mechanism and the lower packaging mechanism. A support frame is included.
2. The large-capacity polymer lithium-ion battery packaging machine according to claim 1, wherein the first lifting mechanism and the upper packaging mechanism are each provided on the support frame, the upper packaging mechanism further includes a first lifting guide bar, one end of the first lifting guide bar is connected to a first fixed plate of the upper packaging mechanism and extends along the lifting direction of the upper packaging mechanism, and the first lifting guide bar passes through a through hole of the support frame. The large-capacity polymer lithium-ion battery packaging machine according to claim 1, wherein the conveying mechanism includes a screw, a guide rail, and a drive unit for driving the rotation of the screw, the cell jig is screw-connected to the screw and slidably connected to the guide rail, and the extension direction of the screw coincides with the extension direction of the guide rail. The large-capacity polymer lithium-ion battery packaging machine according to claim 3, wherein the cell jig includes a mounting plate for mounting the cells and a pressing mechanism for pressing the cells, the pressing mechanism being provided above the mounting plate. The large-capacity polymer lithium-ion battery packaging machine according to claim 4, wherein the pressing mechanism includes a pressing cylinder that is vertically extendable and retractable. The large-capacity polymer lithium-ion battery packaging machine according to claim 4, wherein the cell jig includes a base plate that is slidably connected to the guide rail and screw-connected to the screw, and the loading plate is movably connected to the upper surface of the base plate via a second lifting mechanism for lifting the loading plate. The large-capacity polymer lithium-ion battery packaging machine according to claim 6, wherein a second lift guide bar perpendicular to the loading plate is provided on the underside of the loading plate, and the second lift guide bar is inserted into a through hole in the base plate and slidably connected to the base plate. The large-capacity polymer lithium-ion battery packaging machine according to claim 4, wherein the loading plate is provided with a pair of escape grooves for passing the molding blocks of the lower packaging mechanism. The large-capacity polymer lithium-ion battery packaging machine according to claim 4, wherein the loading plate is provided with two positioning blocks for clamping the electrode tabs of the cells. 2. The large-capacity polymer lithium ion battery packaging machine according to claim 1, wherein the molding block is provided with a heating device for heating the molding block.

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