Packaging device of soft package battery

Abstract

The utility model relates to the technical field of battery production equipment, and discloses a packaging device of a soft package battery, which has a first direction and a second direction which are intersected, and comprises an upper seal head and a lower seal head which are oppositely arranged along the first direction; the upper end socket comprises an end socket body, a rod body and an elastic piece extending in the first direction, the end socket body is located between the rod body and the lower end socket, the two ends of the elastic piece are connected with the rod body and the end socket body respectively, the end socket body is provided with a body through groove, the body through groove penetrates through the end socket body in the first direction and the second direction respectively, and the rod body is connected with a movable block. The movable block is slidably installed in the main body through groove. According to the packaging device of the soft package battery, the number of packaging equipment is reduced, the purchase cost of the equipment is reduced, the operation convenience is improved, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of battery production equipment, and in particular to a packaging device for a soft-pack battery. Background Technology

[0002] In existing pouch cell battery packaging, the battery casing needs to be pre-packaged, with an injection channel left at the seal to facilitate electrolyte injection and allow gases generated during the formation process to escape. After electrolyte injection and venting of gases from the formation process are completed, the casing is then re-packaged, completely heat-sealed, including the injection channel. These two packaging processes in existing technology require separate equipment, resulting in high equipment purchase costs, inconvenient operation, and low production efficiency. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. It provides a packaging device for soft-pack batteries, reducing the number of packaging devices, lowering equipment purchase costs, improving operational convenience, and increasing production efficiency.

[0004] To achieve the above objectives, this utility model provides a packaging device for a soft-pack battery, having intersecting first and second directions, including an upper end cap and a lower end cap, wherein the upper end cap and the lower end cap are arranged opposite to each other along the first direction;

[0005] The upper end cap includes an end cap body, a rod, and an elastic element extending along the first direction. The end cap body is located between the rod and the lower end cap. The two ends of the elastic element are respectively connected to the rod and the end cap body. The end cap body is provided with a main body through groove extending along the first direction. The main body through groove passes through the end cap body along the first direction and the second direction, respectively. The rod is connected to a movable block, which is slidably installed in the main body through groove.

[0006] As a preferred embodiment, the movable block has a first sealing surface on the side facing the lower end cap, the end cap body has a second sealing surface on the side facing the lower end cap, and the upper end cap has a pre-sealed state and a secondary sealing state;

[0007] When the upper end cap is in a pre-sealed state, the first sealing surface is located in the main body through groove, and the second sealing surface is heat-sealed with the lower end cap.

[0008] When the upper end cap is in a secondary sealing state, the first sealing surface and the second sealing surface are flush, and the first sealing surface and the second sealing surface are respectively heat-sealed with the lower end cap.

[0009] As a preferred embodiment, the lower end cap is provided with a heat sealing surface on the side facing the upper end cap. The heat sealing surface includes a first heat sealing area and a second heat sealing area, and the second heat sealing area is positioned corresponding to the main body through groove.

[0010] When the upper end cap is in the pre-sealing state, the first heat-sealing area and the second heat-sealing area are respectively heat-sealed with the second sealing surface;

[0011] When the upper end cap is in the secondary sealing state, only the second heat-sealing area is heat-sealed with the first sealing surface and the second sealing surface respectively.

[0012] As a preferred embodiment, the end cap body has a receiving groove on the side facing the rod body. The receiving groove is provided in accordance with the number and position of the elastic elements. One end of the elastic element is connected to the receiving groove. When the upper end cap is in the secondary sealing state, the elastic element is accommodated in the receiving groove, and the opposite surface of the rod body is in contact with the end cap body.

[0013] As a preferred embodiment, the upper end cap further includes a limiting block, which is movably connected between the rod and the end cap body.

[0014] As a preferred embodiment, the limiting block has a first limiting protrusion at one end facing the rod, and the rod has a first limiting through groove on one side facing the limiting block, with the first limiting protrusion movably connected to the first limiting through groove.

[0015] And / or, the limiting block has a second limiting protrusion at one end facing the head body, and the head body has a second limiting through groove on one side facing the limiting block, with the second limiting protrusion movably connected to the second limiting through groove.

[0016] As a preferred embodiment, at least two movable blocks are provided, and the movable blocks are spaced apart along the extension direction of the rod. The main body through slot is provided in accordance with the number and position of the movable blocks, and the limiting block is movably connected between two adjacent movable blocks.

[0017] As a preferred embodiment, the width W of the main through groove is set between 5mm and 15mm.

[0018] As a preferred embodiment, the minimum distance between the main body through groove and one side of the end cap body is H, where H > 3 mm.

[0019] As a preferred embodiment, the main through groove has a chamfered edge at at least one end of its opening in the second direction, and the movable block has an outwardly protruding pressing block at at least one end of its edge in the second direction, the shape of which corresponds to the shape of the chamfer.

[0020] Compared with the prior art, the packaging device for a soft-pack battery according to this utility model has the following advantages: the rod and the end cap body are connected by an elastic element, forming a whole. The movable block of the rod slides relative to the main through groove of the end cap body. When the soft-pack battery shell is pre-packaged, the movable block is located in the main through groove. When the main through groove and the lower end cap are heat-sealed, an unsealed injection channel is formed on the soft-pack battery shell, corresponding to the main through groove. The end cap body and the lower end cap are heat-sealed together, forming a heat-sealing strip on the soft-pack battery shell. When secondary packaging is required, the movable block slides to the side of the end cap body facing the lower end cap. The movable block and the end cap body simultaneously cooperate with the lower end cap to seal the injection channel, completing the secondary packaging of the soft-pack battery. The pre-packing and secondary packaging of the soft-pack battery can be completed in the same device, reducing the number of packaging equipment, lowering equipment purchase costs, improving operational convenience, and increasing production efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0022] Figure 2 This is a schematic diagram of the structure in the pre-sealed state of an embodiment of this utility model.

[0023] Figure 3 This is a structural schematic diagram of the secondary packaging state of an embodiment of this utility model.

[0024] Figure 4 This is a schematic diagram of the assembly structure of the rod and the movable block in an embodiment of this utility model.

[0025] Figure 5 This is a front view of the head body of an embodiment of this utility model.

[0026] Figure 6 This is a top view of the assembly structure of the head body and the movable block in an embodiment of this utility model.

[0027] Figure 7 This is a schematic diagram of the structure of the limiting block in an embodiment of this utility model.

[0028] Figure 8 This is a top view of the movable block in an embodiment of this utility model.

[0029] In the picture:

[0030] X, first direction; Y, second direction; Z, third direction;

[0031] 10. Upper end cap; 11. End cap body; 111. Chamfer; 12. Second limiting through groove; 13. Second sealing surface; 14. Body through groove; 15. Receiving groove; 16. Rod; 17. First limiting through groove; 18. Movable block; 181. Pressing block; 19. First sealing surface; 20. Elastic element; 21. Limiting block; 22. First limiting protrusion; 23. Second limiting protrusion; 24. First main body section; 25. Second main body section; 26. Third main body section; 27. Connecting part;

[0032] 30. Bottom cover; 31. Heat seal cover; 32. First heat seal area; 33. Second heat seal area. Detailed Implementation

[0033] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0034] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" used to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] In the description of this utility model, it should be understood that the terms "connected," "linked," and "fixed," etc., used in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly defined. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] like Figures 1 to 8 As shown, a preferred embodiment of the present invention provides a packaging device for a soft-pack battery, which intersects a first direction X and a second direction Y, and includes an upper end cap 10 and a lower end cap 30, with the upper end cap 10 and the lower end cap 30 arranged opposite to each other along the first direction X.

[0037] The upper end cap 10 includes an end cap body 11, a rod 16, and an elastic member 20 extending along the first direction X. The end cap body 11 is located between the rod 16 and the lower end cap 30. The two ends of the elastic member 20 are respectively connected to the rod 16 and the end cap body 11. The end cap body 11 is provided with a main body through groove 14, which penetrates the end cap body 11 along the first direction X and the second direction Y. The rod 16 is connected to a movable block 18, which is slidably installed in the main body through groove 14.

[0038] The packaging device for a soft-pack battery of this utility model has a rod 16 connected to a head 11 via an elastic element 20, forming a whole. The movable block 18 of the rod 16 slides relative to the main through groove 14 of the head 11. When the soft-pack battery casing is pre-packaged, the movable block 18 is located in the main through groove 14, so that when the main through groove 14 and the lower head 30 are heat-sealed, an injection channel is formed on the soft-pack battery casing, which is positioned corresponding to the main through groove 14 and is not heat-sealed. The head 11 and the lower head 30 are heat-sealed together, forming a heat-sealing strip on the soft-pack battery casing. When secondary packaging is required, the movable block 18 slides to the side of the head 11 facing the lower head 30, and the movable block 18 and the head 11 simultaneously cooperate with the lower head 30 to seal the injection channel and complete the secondary packaging of the soft-pack battery. The pre-packaging and secondary packaging of pouch batteries can be completed in the same device, reducing the number of packaging equipment, lowering equipment purchase costs, improving ease of operation, and increasing production efficiency.

[0039] The injection channel is used for injecting electrolyte and for venting air during the formation process.

[0040] In one embodiment, the first direction X is perpendicular to the second direction Y.

[0041] As one embodiment, such as Figures 1 to 3 As shown, the elastic element 20 is a spring. Springs have high reliability and durability, and can maintain stable performance during long-term use.

[0042] Furthermore, such as Figures 1 to 5 As shown, the movable block 18 has a first sealing surface 19 on the side facing the lower end cap 30, and the end cap body 11 has a second sealing surface 13 on the side facing the lower end cap 30. The upper end cap 10 has a pre-sealed state and a secondary sealing state.

[0043] like Figure 2 As shown, when the upper end cap 10 is in the pre-sealing state, the first sealing surface 19 is located in the main body through groove 14, and the second sealing surface 13 is heat-sealed with the lower end cap 30.

[0044] like Figure 3As shown, when the upper end cap 10 is in the secondary sealing state, the first sealing surface 19 and the second sealing surface 13 are flush, and the first sealing surface 19 and the second sealing surface 13 are heat-sealed with the lower end cap 30 respectively.

[0045] By using the different combinations of the first sealing surface 19 and the second sealing surface 13 with the lower sealing head 30, the switching between the pre-sealing state and the secondary sealing state is realized. The operation is simple and the production efficiency is high.

[0046] Furthermore, the lower end cap 30 is provided with a heat sealing surface 31 on the side facing the upper end cap 10. The heat sealing surface 31 includes a first heat sealing area 32 and a second heat sealing area 33, and the second heat sealing area 33 is positioned corresponding to the main body through groove 14. The heat sealing surface 31 is partitioned so that the first heat sealing area 32 and the second heat sealing area 33 are individually temperature controlled in the pre-sealing state and the secondary packaging state. The partitioned setting of the lower end cap can prevent over-melting during secondary packaging and improve the reliability of packaging.

[0047] When the upper end cap 10 is in the pre-sealed state, the first heat-sealing area 32 and the second heat-sealing area 33 respectively heat-seal with the second sealing surface 13 to complete the pre-packing of the soft-pack battery and form an injection channel.

[0048] When the upper end cap 10 is in the secondary encapsulation state, only the second heat-sealing area 33 is heat-sealed with the first sealing surface 19 and the second sealing surface 13 respectively to achieve heat sealing of the injection channel and complete the secondary encapsulation of the soft pack battery.

[0049] In one embodiment, the encapsulation device has a third direction Z, and the first direction X, the second direction Y, and the third direction Z are perpendicular to each other. The head body 11 has two main body through slots 14 spaced apart in the third direction Z. The first heat-sealing area 32 is located between the two main body through slots 14 in the third direction Z. The first heat-sealing area 32 is connected to the second heat-sealing area 33 at both ends of the third direction Z. A portion of the second heat-sealing area 33 is positioned corresponding to the position of the first sealing surface 19 in the third direction Z, and a portion is positioned corresponding to the position of the second sealing surface 13 located at one end of the head body 11 in the third direction Z. In the pre-sealing state, the first heat-sealing area 32 and the two second heat-sealing areas 33 are heat-sealed with the second sealing surface 13 respectively. In the secondary encapsulation state, the first heat-sealing area 32 does not generate heat, while the two second heat-sealing areas 33 generate heat and are heat-sealed with the first sealing surface 19 and the second sealing surfaces 13 at both ends of the head body 11 in the third direction Z respectively. The second sealing surfaces 13 at both ends of the head body 11 in the third direction Z are the second sealing surfaces 13 located on the outer side of the main body through groove 14 in the third direction Z. Because two main body through grooves 14 are provided, two injection channels are formed on the soft-pack shell. The openings of the two injection channels are relatively small, which can reduce electrolyte loss during secondary encapsulation, further improving the electrolyte retention of the battery cell and enhancing the consistency of the electrolyte retention.

[0050] As one embodiment, one side of the second heat-sealing zone 33 and the main body through groove 14 have a distance A in the third direction Z, wherein the distance A > 5 mm.

[0051] Furthermore, such as Figures 2 to 3 as well as Figures 5 to 6 As shown, the end cap body 11 has a receiving groove 15 on the side facing the rod 16. The receiving groove 15 is arranged in a corresponding manner to the number and position of the elastic elements 20. One end of the elastic element 20 is connected to the receiving groove 15. When the upper end cap 10 is in the secondary sealing state, the elastic element 20 is accommodated in the receiving groove 15, and the opposite surface of the rod 16 is in contact with the end cap body 11. In the secondary sealing state, the elastic element 20 is entirely accommodated in the receiving groove 15, so that the opposite surface of the rod 16 is in contact with the end cap body 11, thereby improving the heat sealing stability of the upper end cap 10 and the lower end cap 30.

[0052] As one embodiment, such as Figure 6 As shown, the edge shape of the first sealing surface 19 corresponds to the shape of the end of the main body through groove 14 facing the lower end cap 30, so as to ensure that the injection channel can be heat-sealed.

[0053] Furthermore, such as Figure 2 and Figure 7 As shown, the upper end cap 10 also includes a limiting block 21, which is movably connected between the rod 16 and the end cap body 11. When the upper end cap 10 is in the pre-sealing state, the limiting block 21 is placed between the rod 16 and the end cap body 11, and the elastic element 20 is in a stretched state, so that the first sealing surface 19 is limited and held within the main body through groove 14, so that the end cap body 11 and the lower end cap 30 can be heat-sealed more smoothly, ensuring operational stability. When the upper end cap 10 is in the secondary sealing state, the limiting block 21 is removed from between the rod 16 and the end cap body 11, so that the first sealing surface 19 is flush with the second sealing surface 13 and heat-sealed with the lower end cap 30.

[0054] Furthermore, such as Figure 2 , Figure 4 and Figure 7 As shown, the limiting block 21 has a first limiting protrusion 22 at one end facing the rod 16, and the rod 16 has a first limiting through groove 17 on one side facing the limiting block 21. The first limiting protrusion 22 is movably connected to the first limiting through groove 17. The first limiting protrusion 22 is inserted into the first limiting through groove 17 from one end, which is simple to operate. By limiting the position of the first limiting protrusion 22 in the first limiting through groove 17, the connection stability between the limiting block 21 and the rod 16 is improved.

[0055] And / or, such as Figure 2 , Figures 5 to 7As shown, the end of the limiting block 21 facing the head body 11 is provided with a second limiting protrusion 23, and the side of the head body 11 facing the limiting block 21 is provided with a second limiting through groove 12. The second limiting protrusion 23 is movably connected to the second limiting through groove 12. The second limiting protrusion 23 is inserted into the second limiting through groove 12 from one end of the second limiting through groove 12. The operation is simple. By limiting the second limiting protrusion 23 to the second limiting through groove 12, the connection stability between the limiting block 21 and the head body 11 is improved.

[0056] Furthermore, such as Figures 1 to 2 As shown, at least two movable blocks 18 are provided, and the movable blocks 18 are spaced apart along the extension direction of the rod 16. The main body through slot 14 is provided with a corresponding number and position to the movable blocks 18. A limiting block 21 is movably connected between two adjacent movable blocks 18. The limiting block 21 is connected between two adjacent movable blocks 18 to improve the support stability in the pre-sealed state.

[0057] As one embodiment, such as Figures 1 to 2 As shown, a limit block 21 is provided between each pair of adjacent active blocks 18, so that the force is more even during pre-packaging.

[0058] As one embodiment, such as Figures 1 to 2 As shown, the distance between the limiting block 21 and the two adjacent movable blocks 18 is equal, indicating a pre-sealed state.

[0059] Furthermore, the width W of the main through groove 14 is set between 5 mm and 15 mm. When the width of the main through groove 14 is less than 5 mm, it will cause poor venting during formation, preventing timely discharge from the reserved injection channel, which may lead to the risk of the pouch battery casing being blown open by gas during the top sealing process. When the width of the main through groove 14 is greater than 15 mm, it will reduce the consistency of the secondary sealing pull force. Setting the width of the main through groove 14 within an appropriate range can avoid the risk of the pouch battery casing being blown open by gas, while ensuring the quality of the secondary sealing.

[0060] Furthermore, the minimum distance between the main body through groove 14 and one side of the end cap body 11 is H, where H > 3mm, to ensure the structural strength of the end cap body 11.

[0061] In one embodiment, multiple main through slots 14 are provided, and the number of movable blocks 18 corresponds to the number of main through slots 14. Each main through slot 14 is slidably connected to a movable block 18, and the multiple main through slots 14 are spaced apart along the extension direction of the head body 11. By setting multiple main through slots 14, multiple injection channels can be formed in the pre-sealed state, improving the injection efficiency of electrolyte and the venting efficiency of the formation process.

[0062] In one embodiment, the packaging device for the pouch battery also includes a lifting component and a base. The lifting component is fixed to the base, the rod 16 is connected to the base, and the lower end cap 30 is connected to the lifting end of the lifting component. The lifting component drives the lower end cap 30 to move up and down to cooperate with the upper end cap 10 for heat sealing.

[0063] In one embodiment, the head body 11 includes a connecting portion 27 and a first main body segment 24, a second main body segment 25, and a third main body segment 26 arranged sequentially along the extension direction of the head body 11. The upper ends of the first main body segment 24 and the second main body segment 25 are connected and fixed through the connecting portion 27. A main body through groove 14 is formed between the first main body segment 24 and the second main body segment 25. The upper ends of the second main body segment 25 and the third main body segment 26 are connected and fixed through the connecting portion 27. A main body through groove 14 is formed between the second main body segment 25 and the third main body segment 26.

[0064] In one embodiment, the movable block 18 does not generate heat, while the lower end cap 30 can generate heat, or both the upper end cap 10 and the lower end cap 30 can generate heat. Both of these methods can meet the heat sealing requirements for pre-packaging and secondary packaging.

[0065] Furthermore, the main body through groove 14 has a chamfer 111 at at least one end of its opening edge in the second direction Y, and the movable block 18 has an outwardly protruding pressing block 181 at at least one end of its edge in the second direction Y. The shape of the pressing block 181 corresponds to the shape of the chamfer 111. By setting the chamfer 111 and the pressing block 181, the sealing reliability is improved when the movable block 18 and the end cap body 11 are heat-sealed together. At the same time, it allows the gas generated during the formation process to be better discharged.

[0066] As one embodiment, chamfer 181 is an arc-shaped chamfer, and the central angle of the arc-shaped chamfer is set between 30° and 60°.

[0067] In summary, this utility model embodiment provides a packaging device for a soft-pack battery. The rod 16 and the end cap body 11 are connected by an elastic element 20, so that the rod 16 and the end cap body 11 are connected to form an integral whole. The movable block 18 of the rod 16 slides relative to each other in the main through groove 14 of the end cap body 11. When the soft-pack battery shell is pre-packaged, the movable block 18 is located in the main through groove 14, so that when the main through groove 14 and the lower end cap 30 are heat-sealed, an injection channel that is not heat-sealed is formed on the shell of the soft-pack battery and is positioned corresponding to the main through groove 14. The end cap body 11 and the lower end cap 30 are heat-sealed together, and a heat-sealing strip is formed on the shell of the soft-pack battery. When secondary packaging is required, the movable block 18 slides to the side of the end cap body 11 facing the lower end cap 30. The movable block 18 and the end cap body 11 are simultaneously engaged with the lower end cap 30 to close the injection channel and complete the secondary packaging of the soft-pack battery. The pre-packaging and secondary packaging of pouch batteries can be completed in the same device, reducing the number of packaging equipment, lowering equipment purchase costs, improving ease of operation, and increasing production efficiency.

[0068] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of this utility model, and these improvements and substitutions should also be considered within the protection scope of this utility model.

Claims

1. A packaging device of a pouch battery having a first direction and a second direction intersecting each other, characterized by: The upper head and the lower head are oppositely arranged along the first direction; The upper head comprises a head main body, a rod body and an elastic piece extending along the first direction, the head main body is located between the rod body and the lower head, two ends of the elastic piece are connected with the rod body and the head main body respectively, the head main body is provided with a main body through slot, the main body through slot penetrates the head main body along the first direction and the second direction respectively, and the rod body is connected with a movable block, the movable block is slidingly installed in the main body through slot. 2.The packaging device of the pouch battery according to claim 1, characterized in that: A first sealing surface is arranged on one side of the movable block facing the lower head, a second sealing surface is arranged on one side of the head main body facing the lower head, and the upper head has a pre-sealing state and a secondary packaging state; When the upper head is in the pre-sealing state, the first sealing surface is located in the main body through slot, and the second sealing surface is in thermal sealing cooperation with the lower head; When the upper head is in the secondary packaging state, the first sealing surface is flush with the second sealing surface, and the first sealing surface and the second sealing surface are respectively in thermal sealing cooperation with the lower head. 3.The packaging device of the pouch battery according to claim 2, characterized by: A heat sealing surface for thermal sealing is arranged on one side of the lower head facing the upper head, the heat sealing surface comprises a first heat sealing area and a second heat sealing area, and the second heat sealing area is arranged in position corresponding to the main body through slot; When the upper head is in the pre-sealing state, the first heat sealing area and the second heat sealing area are respectively in thermal sealing cooperation with the second sealing surface; When the upper head is in the secondary packaging state, only the second heat sealing area is in thermal sealing cooperation with the first sealing surface and the second sealing surface. 4.The packaging device of the pouch battery according to claim 2, characterized by: A containing groove is arranged on one side of the head main body facing the rod body, the containing groove is arranged in position corresponding to the number and position of the elastic piece, one end of the elastic piece is connected to the containing groove, the elastic piece is contained in the containing groove when the upper head is in the secondary packaging state, and the opposite surfaces of the rod body and the head main body are attached. 5.The packaging device of the pouch battery according to claim 1, characterized in that: The upper head further comprises a limiting block, and the limiting block is movably connected between the rod body and the head main body. 6.The packaging device of the pouch battery according to claim 5, characterized in that: One end of the limiting block facing the rod body is provided with a first limiting protrusion, one side of the rod body facing the limiting block is provided with a first limiting through slot, and the first limiting protrusion is movably connected to the first limiting through slot. Furthermore, one end of the limiting block facing the head main body is provided with a second limiting protrusion, one side of the head main body facing the limiting block is provided with a second limiting through slot, and the second limiting protrusion is movably connected to the second limiting through slot. 7.The packaging device of the pouch battery according to claim 5, characterized in that: The movable block is provided with at least two, the movable blocks are arranged at intervals along the extension direction of the rod body, the main body through slot is arranged in position corresponding to the number and position of the movable blocks, and the limiting block is movably connected between the two adjacent movable blocks. 8.The packaging device of the pouch battery according to claim 1, characterized in that: The width W of the main body through slot is 5mm-15mm. 9.The packaging device of the pouch battery according to claim 1, characterized in that: The minimum distance H between the main body through slot and one side of the head main body is greater than 3mm. 10.The packaging device of the pouch battery according to claim 1, characterized in that: The opening edge of at least one end of the main body through slot in the second direction is provided with a chamfer, and the edge of at least one end of the movable block in the second direction is provided with an outwardly protruding pressing block, and the shape of the pressing block is correspondingly arranged with the shape of the chamfer.

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