Aluminum plastic film packaging equipment for solid-state battery

Abstract

The application relates to the technical field of battery production and manufacturing, and particularly discloses an aluminum-plastic film packaging device for solid-state batteries; the device comprises a rack, a material table arranged on the rack, two turnover tables symmetrically arranged on the two sides of the material table, a horizontal relative turnover driving device arranged on the rack, an adsorption platform arranged on the turnover table, two tensioning mechanisms symmetrically arranged on the two turnover tables, two edge sealing mechanisms symmetrically arranged on the two turnover tables, a side clamping mechanism arranged on the rack and used for clamping the battery cell laterally, a pressing mechanism arranged on the rack and used for pressing the top end of the battery cell, and a lifting execution member assembled on the lifting end of the pressing mechanism. The device provided by the application improves the shaping and wrapping tightness of the aluminum-plastic film on the battery cell through packaging positioning, lifting and tensioning the aluminum-plastic film and other modes, thereby reducing the influence of the obvious packaging gap on the mechanical buffering protection property, the heat dissipation property, the battery module assembly difficulty and the light weight of the battery cell, and improving the overall quality of the battery.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production and manufacturing, and specifically proposes aluminum-plastic film packaging equipment for solid-state batteries. Background Art

[0002] Solid-state batteries are a new type of battery technology that replaces traditional liquid electrolytes with solid-state electrolytes. Like traditional batteries, the use of aluminum-plastic film for packaging is a common way to protect the external appearance of solid-state battery cells. Before packaging, the aluminum-plastic film is pre-cut according to the required size. During packaging, the packaging is basically completed according to the two-time packaging process. During the first packaging, the aluminum-plastic film is folded in half and hot-pressed and sealed on both sides of the fold, so that the battery cell is fixed in an open shell at one end formed by the aluminum-plastic film packaging. During the second packaging, the air and water vapor in the aluminum-plastic film shell are emptied, and the open end is hot-pressed and sealed, thereby completing the complete packaging of the solid-state battery.

[0003] In the existing packaging operation, the battery cell is basically placed horizontally, then the aluminum-plastic film is folded in half and wrapped, and then the two sides are press-sealed. The entire operation process is quite arbitrary and is prone to the following packaging problems.

[0004] (1) During the placement of the battery cells and the folding and packaging of the aluminum-plastic film, the battery cells are usually not precisely positioned. However, the effectiveness of the packaging seal must be ensured. Therefore, a large margin is left in the aluminum-plastic film during pre-cutting. After the final packaging is completed, the aluminum-plastic film needs to be trimmed and cut, which will result in the generation of a large amount of aluminum-plastic film waste and waste of aluminum-plastic film materials. In the process of large-scale packaging manufacturing, the cost of packaging materials accumulates and increases.

[0005] (2) Due to the lack of effective positioning during the cell packaging process and the inconvenience of tensioning and laminating the aluminum-plastic film when the cell is placed horizontally, there is a high probability that a gap will be created between the edge seal and the cell during the first packaging. Although the cell can be hollowed out during the second packaging, the cell will experience repeated thermal expansion and contraction during actual use, and subsequent use will more quickly and gradually return to the packaging state before the hollowing out. The overall performance is poor packaging tightness.

[0006] (3) Poor tightness of packaging will cause many problems. First, when the battery cell is subjected to external impact or vibration, there will be a large space for movement, and the mechanical buffering protection effect of the aluminum-plastic film on the battery cell will be reduced; second, the effect of the battery cell using the aluminum-plastic film as a medium to dissipate heat to the outside will be affected, causing heat to accumulate in the gap, affecting the safety of the battery cell; third, loose packaging means that there is excess aluminum-plastic film. The battery module is assembled with several battery cells, which will increase the overall weight of the battery module, reduce lightweight, and increase the difficulty of assembling the battery module.

[0007] (4) When the battery cell is placed horizontally, it can only be packaged by downward pressure. The single-sided packaging causes the battery cell to bear single-sided force, affecting the uniformity of the force during battery cell packaging and posing a potential impact on the safety of the battery cell. Summary of the Invention

[0008] In order to solve the above problems, the present invention provides an aluminum-plastic film packaging device for solid-state batteries, which is used to solve the problems mentioned in the above background technology.

[0009] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: an aluminum-plastic film packaging device for solid-state batteries, comprising: a frame, on which a material table for vertically placing a power supply core is provided; two turning tables, symmetrically arranged on both sides of the material table, and driven to turn relative to each other horizontally on the frame; the two turning tables turn between a horizontally unfolded state and an upward vertical state; an adsorption platform for adsorbing and fixing the aluminum-plastic film is provided on the turning table; two tensioning mechanisms, symmetrically arranged on the two turning tables; when the turning tables are vertical, the tensioning mechanism is located on the upper side of the adsorption platform; two edge sealing mechanisms, symmetrically arranged on the two turning tables; the edge sealing mechanism includes It includes two edge banding plates that are driven vertically relative to the adsorption surface of the adsorption platform for hot-pressing the edge of the aluminum-plastic film. The adsorption platform and the tensioning mechanism are located between the two edge banding plates; a side clamping mechanism is provided on the frame and located between the two turning tables, and is used to clamp the battery cell laterally; a downward pressing mechanism is provided on the frame and located directly above the material table, and is used to press the top of the battery cell; and a lifting actuator is assembled at the lifting end of the downward pressing mechanism. When the turning table is vertical and the adsorption platform is released, the two tensioning mechanisms are indirectly driven by the lifting actuator in the process of releasing the clamping of the side clamping mechanism, thereby driving the aluminum-plastic film to be lifted and tensioned, and tightly wrapped around the battery cell.

[0010] Preferably, the turning table is symmetrically provided with avoidance grooves on both sides of the adsorption platform in the axial direction of the rotating shaft; the two edge sealing plates are symmetrically arranged at the two avoidance grooves; when the turning table is horizontal and the edge sealing plates are in contact with the avoidance grooves, the upper end surface of the material table, the adsorption surface of the adsorption platform and the edge sealing surface of the edge sealing plates are horizontally aligned.

[0011] Preferably, the tensioning mechanism includes an embedded sliding bottom frame installed on the turning table, a connecting frame is fixed on the sliding bottom frame, and the connecting frame and the turning table are elastically connected; a tensioning member is installed in the sliding bottom frame in a sliding manner, and the tensioning member is guided to slide by the turning table; when the turning table is vertical and the sliding bottom frame is pulled upward by the connecting frame, the tensioning member first slides horizontally outward on the sliding bottom frame, and then moves upward synchronously with the sliding bottom frame.

[0012] Preferably, a slide groove is provided on the end face of the turning table on the same side as the adsorption platform, and the sliding bottom frame is embedded in the slide groove and slides; the tensioning member includes a clamping roller frame slidably installed in the sliding bottom frame and a plurality of clamping rollers horizontally rotatably installed in the clamping roller frame; the clamping roller frame slides in a direction perpendicular to the adsorption surface; track grooves are relatively opened on the two side walls of the slide groove located in the axial direction of the clamping roller, and two movable pins symmetrically distributed on both sides are horizontally rotatably installed on the clamping roller frame, and the movable pins move along the track groove on the adjacent side; when the turning table is vertical, the clamping rollers are arranged vertically, and the track groove contains arc segments and vertical segments from bottom to top, and the vertical segment is horizontally closer to the material table than the arc segment.

[0013] Preferably, the side clamping mechanism includes two side clamping blocks that are horizontally and reversely slidably arranged on both sides of the material table, and the side clamping blocks are located between the two turning tables; a lifting member that is vertically slidably installed on the frame and cooperates with the two side clamping blocks; when the turning table is vertical, the downward pressure mechanism is pressed against the top of the battery cell, and the two side clamping blocks slide relatively away from each other, the lifting member is synchronously driven to lift the lifting actuator upward, and the lifting actuator synchronously pulls the two connecting members upward, and the two sliding bottom frames slide upward accordingly.

[0014] Preferably, the pressing mechanism includes a travel seat that is arranged to be lifted and lowered and a pressing member arranged on the travel seat; the lifting actuator is vertically slidably installed on the travel seat; the pressing member includes two pressure touch plates that are horizontally slidably installed at the bottom end of the travel seat, and a contraction block that can elastically contract is fixed between the two pressure touch plates, and the contraction block is fixed at the bottom end of the travel block.

[0015] Preferably, when the sliding bottom frame slides upward, when the movable pin moves from the arc segment of the track groove to the vertical segment, the aluminum-plastic film is clamped between the pressure touch plate and the clamping roller, and the shrinkage block shrinks horizontally in the sliding direction of the pressure touch plate.

[0016] Preferably, the lifting actuator includes a hanging guide block vertically slidably mounted on the travel seat, and the top of the hanging guide block overlaps the top of the travel seat; a contact plate is fixed to the bottom end of the hanging guide block, and two lifting rollers distributed on both sides of the lower pressure piece are horizontally mounted on the contact plate, and the two lifting rollers are correspondingly arranged with two tensioning mechanisms; the connecting frame includes a lifted plate, and when the turning table is vertical and the lower pressure piece presses on the top of the battery cell, the lifting roller is located below the corresponding lifted plate.

[0017] Preferably, the side clamping mechanism further includes a lifting drive end, and connecting rods are hinged between the two side clamping blocks and the lifting drive end; and the lifting member is fixedly connected to the lifting drive end.

[0018] Preferably, the lifting member includes a horizontal plate horizontally fixed to the lifting drive end, a guide rod vertically fixed to the horizontal plate, and a lifting plate horizontally fixed to the top of the guide rod; the guide rod is slidably mounted on the frame, and the lifting plate is located below the contact plate.

[0019] The above technical solution has the following advantages or beneficial effects: the present invention provides an aluminum-plastic film packaging device for solid-state batteries. When the solid-state battery cells are packaged once, the cells are placed vertically instead of the traditional horizontal packaging. A structural layout is adopted in which a material table is arranged in the middle and flip tables are arranged on both sides. Both flip tables are provided with adsorption platforms for adsorbing and fixing the aluminum-plastic film. The aluminum-plastic film can be flattened, fixed, and stably folded relative to each other. The synchronous centering edge sealing processing can be achieved through two edge sealing mechanisms correspondingly arranged on the flip tables, which avoids the problem of single-sided edge sealing force of the battery cell during edge sealing under the existing horizontal placement. The problem is solved, which ensures the uniformity of the force on the battery cells to form protection; a side clamping mechanism is arranged between the two turning tables for placing and positioning the battery cells, which can realize the packaging positioning, and is convenient for the precise pre-cutting of the aluminum-plastic film and reducing the margin to save the use of film materials. At the same time, it is convenient for the edge sealing plate to perform the edge sealing operation on the battery cells, and improves the tightness of the edge sealing on both sides of the battery cells while ensuring effective sealing; in addition, before the edge sealing operation, with the cooperation of the downward pressing mechanism to press the battery cells, the aluminum-plastic film can be pulled and tensioned by the tensioning mechanisms correspondingly arranged on the two turning tables to further improve the tightness of the aluminum-plastic film in shaping and wrapping the battery cells.

[0020] In summary, the equipment provided by the present invention can ensure the uniformity of force during battery cell packaging, indirectly protect the battery cells, and improve the tightness of the aluminum-plastic film in shaping and wrapping the battery cells through various methods such as packaging positioning and pulling and tensioning the aluminum-plastic film, thereby reducing the impact of the obvious packaging gap on the mechanical buffering protection, heat dissipation, battery module assembly difficulty and lightweight of the battery cells, thereby improving the overall quality and service life of the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention and its features, configurations and advantages will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings, in which like reference numerals indicate like parts throughout the drawings, which are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of an aluminum-plastic film packaging device for solid-state batteries provided by the present invention.

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of an aluminum-plastic film packaging device for solid-state batteries provided by the present invention from another perspective.

[0024] Figure 3 It is a side view of an aluminum-plastic film packaging device for solid-state batteries provided by the present invention.

[0025] Figure 4 It is a three-dimensional structural diagram of the tensioning mechanism and edge banding mechanism assembled on the turning table (without the rotating shaft frame).

[0026] Figure 5 is a schematic view of the three-dimensional structure of the turnover table.

[0027] Figure 6 is a schematic view of the three-dimensional structure of the side clamping mechanism, material table and base beam assembly.

[0028] Figure 7 is a packaging state diagram when the aluminum plastic film is folded in half and not edge sealed.

[0029] Figure 8 is a three-dimensional processing state diagram of the aluminum plastic film packaging equipment for solid-state batteries provided by the present application when the aluminum plastic film is not folded in half.

[0030] Figure 9 is a planar processing state diagram of the aluminum plastic film packaging equipment for solid-state batteries provided by the present application when the aluminum plastic film is not folded in half.

[0031] Figure 10 is Figure 9 is a partial enlarged view of position A in FIG.

[0032] Figure 11 is a planar processing state diagram of the aluminum plastic film packaging equipment for solid-state batteries provided by the present application when the aluminum plastic film is folded in half and not edge sealed.

[0033] In the figure: 1, rack; 11, material table; 12, base beam; 2, turnover table; 21, adsorption platform; 22, position avoidance groove; 23, slide groove; 231, track groove; 24, rotating shaft frame; 25, gear; 3, tensioning mechanism; 31, sliding bottom frame; 32, connecting frame; 321, lifted plate; 33, tension spring; 34, clamping roller frame; 341, moving pin; 35, clamping roller; 4, edge sealing mechanism; 41, driving assembly; 411, No. 1 air cylinder; 412, driving plate; 413, connecting block; 42, edge sealing plate; 5, side clamping mechanism; 51, No. 2 air cylinder; 52, connecting rod; 53, side clamping block; 531, rubber block; 54, lifting part; 541, horizontal plate; 542, guide rod; 543, lifting plate; 6, pressing mechanism; 61, No. 3 air cylinder; 62, stroke seat; 63, pressing part; 631, pressure contact plate; 632, contraction block; 7, lifting execution part; 71, hanging guide block; 72, contact plate; 73, lifting roller; 81, battery cell; 811, electrode sheet; 82, aluminum plastic film. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the present application.

[0035] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] See Figure 7 and Figure 8 , a solid-state battery aluminum-plastic film packaging device, it should be noted that the device provided by the present invention is used for Figure 7 The solid-state battery cell 81 of a specific standard size shown in the figure is subjected to a primary packaging operation of an aluminum-plastic film 82. During the production process of the cell 81, the cell 81 is laminated, pressurized and cured using a standard cell mold. It has a standard rectangular structure and is relatively hard as a whole, which can maintain the integrity of the shape of the cell 81. In addition, the positive and negative electrode sheets 811 of the cell 81 are located at one end of the cell 81; the cell 81 is packaged and protected using an aluminum-plastic film 82. Before packaging, the aluminum-plastic film 82 is pre-cut according to the packaging size structure. During the primary packaging, the aluminum-plastic film 82 is folded in half, and the cell 81 is placed in the aluminum-plastic film 82, and the folded sides of the aluminum-plastic film 82 are hot-pressed and sealed. Figure 7 In the cutting process of the aluminum-plastic film 82 , rectangular notches are cut at both ends of the folded portion, and in order to ensure that the battery cell 81 is completely wrapped, a margin for wrapping the battery cell 81 is reserved at the rectangular notches.

[0037] See Figure 1 、 Figure 2 、 Figure 6 and Figure 7 The above-mentioned packaging equipment includes a frame 1, on which a material table 11 is provided on which the battery core 81 is placed vertically. A base beam 12 is horizontally welded to the bottom end of the material table 11, and both ends of the base beam 12 are welded to the frame 1; the material table 11 is a rectangular table top, and it should be noted that the width of the material table 11 is slightly smaller than the thickness of the battery core 81, and the length of the material table 11 is slightly smaller than the width of the battery core 81.

[0038] See Figure 1 、 Figure 4 and Figure 5, two turning tables 2 are installed on the frame 1 for relative rotation horizontally, and the two turning tables 2 are symmetrically arranged on both sides of the material table 11 in the width direction of the material table 11; rotating shaft frames 24 are symmetrically welded on the turning tables 2 at both ends in the length direction of the material table 11, and the two rotating shaft frames 24 are horizontally rotatably installed on the frame 1; in this embodiment, the two rotating shaft frames 24 on the same side of the two turning tables 2 are fixed with gears 25, and the two gears 25 have the same structure and mesh with each other. In order to realize the relative turning drive of the two turning tables 2, a stepping motor (not shown in the figure) can be fixedly installed horizontally on the frame 1, and the stepping motor The output shaft is fixedly connected to the shaft end of one of the gears 25. The stepper motor drives the two flipping platforms 2 to flip between the horizontally expanded state and the upward vertical state. The stepper motor is a self-locking motor. The two flipping platforms 2 can remain locked in the horizontal or vertical state. The flipping platform 2 is provided with an adsorption platform 21 for adsorbing and fixing the aluminum-plastic film 82. The adsorption platform 21 is centered relative to the axial ends of the flipping platform 2. The other end of the flipping platform 2 is provided with a pipe joint for the adsorption platform 21 to be externally connected to an air pipe. The adsorption platforms 21 on the two flipping platforms 2 are commonly connected to the same negative pressure generator through two air pipes.

[0039] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 9 and Figure 11, the two turning tables 2 are respectively equipped with an edge sealing mechanism 4, and the two edge sealing mechanisms 4 are symmetrically distributed on both sides of the material table 11; the turning table 2 is symmetrically provided with avoidance grooves 22 on both sides of the adsorption platform 21 in the axial direction of the rotating shaft; the edge sealing mechanism 4 includes a driving component 41 and two edge sealing plates 42, and the two edge sealing plates 42 are symmetrically arranged at the two avoidance grooves 22. In order to hot-press the rectangular notch margin of the aluminum-plastic film 82, on the side close to the material table 11, one end of the edge sealing plate 42 extends relative to the side of the turning table 2. It should be noted that the edge sealing plate 42 is an existing electrically heated hot-pressing edge sealing structure, and the hot-pressing temperature is controllable; the driving component 41 includes a No. 1 cylinder 411 fixed to the back of the turning table 2 by a fixing frame, and the output end of the No. 1 cylinder 411 is welded with a driving plate 412, and the driving plate 412 Two connecting blocks 413 are fixed by bolts, and the two connecting blocks 413 slide through the turning table 2, and the two edge sealing plates 42 are welded to the two connecting blocks 413 in a one-to-one manner. The two edge sealing plates 42 can be synchronously driven by the driving component 41 to move in the direction perpendicular to the adsorption surface of the adsorption platform 21. In this embodiment, when the output end of the No. 1 cylinder 411 is not output, the edge sealing plate 42 overlaps and contacts the avoidance groove 22; when the turning table 2 is horizontal and the edge sealing plate 42 contacts the avoidance groove 22, the upper end surface of the material table 11, the adsorption surface of the adsorption platform 21 and the edge sealing surface of the edge sealing plate 42 are horizontally aligned, together forming a discharge surface for flatly placing the aluminum-plastic film 82. During actual processing, the pre-cut aluminum-plastic film 82 can be automatically grabbed and placed on the discharge surface by the existing adsorption grabbing robot.

[0040] See Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 and Figure 11, the two turning tables 2 are respectively equipped with a tensioning mechanism 3, which is symmetrically distributed on both sides of the material table 11; a slide groove 23 is provided on the end surface of the turning table 2 on the same side as the adsorption platform 21, and the slide groove 23 is opened at the end of the turning table 2 away from the material table 11, and the slide groove 23 is located between the two avoidance grooves 22; the tensioning mechanism 3 includes a sliding bottom frame 31 embedded and slidably installed in the slide groove 23, and a connecting frame 32 is assembled on the sliding bottom frame 31. The connecting frame 32 includes a connecting plate and a lifted plate 321. The side wall of the sliding bottom frame 31 is welded to the lifted plate 321 by a connecting plate, and two tension springs 33 are welded between the lifted plate 321 and the turning table 2; A clamping roller frame 34 is slidably mounted within the sliding base frame 31, sliding perpendicularly to the suction surface of the suction platform 21. Multiple clamping rollers 35 are mounted horizontally within the clamping roller frame 34. Track grooves 231 are formed on opposite sides of the slideway 23, axially aligned with the clamping rollers 35. Two symmetrically mounted movable pins 341 are mounted horizontally on the clamping roller frame 34, moving along the adjacent track grooves 231. When the turning platform 2 is vertical, the tensioning mechanism 3 is positioned above the suction platform 21. The clamping rollers 35 are arranged vertically, with the track grooves 231 comprising an arc segment and a vertical segment from bottom to top, with the vertical segment being closer to the material platform 11 than the arc segment. When the turning platform 2 is horizontal, the sliding base frame 31, the clamping roller frame 34, and the clamping rollers 35 are positioned within the suction surface of the suction platform 21, allowing the aluminum-plastic film 82 to be placed horizontally against the surface and preventing it from being partially lifted and causing bending and wrinkling.

[0041] When the edge sealing mechanism 4 is used to seal the aluminum-plastic film 82 on both sides of the battery cell 81, in order to ensure the tightness of the aluminum-plastic film 82 edge sealing, the edge sealing plate 42 basically needs to be attached to the side wall of the battery cell 81 for hot pressing and sealing. Figure 2 、 Figure 3 、 Figure 6 、 Figure 7 and Figure 9 , a side clamping mechanism 5 for laterally clamping and positioning the battery cell 81 is installed between the two turning tables 2 on the frame 1, which is used to ensure the vertical placement accuracy of the battery cell 81 to avoid interference between the battery cell 81 itself and the edge sealing of the edge sealing plate 42; the side clamping mechanism 5 includes a No. 2 cylinder 51 vertically fixed to the frame 1 through a fixed plate, and the No. 2 cylinder 51 is located directly below the base crossbeam 12, and a slide rail arranged along the long side direction of the material table 11 is welded on the base crossbeam 12, and two side clamping blocks 53 are horizontally slidably installed on the base crossbeam 12, and the two side clamping blocks 53 are symmetrically distributed on both sides of the material table 11; the side clamping blocks 53 vertically pass through the base crossbeam 12, and a connecting rod 52 is hinged between the bottom end of the two side clamping blocks 53 and the output end of the No. 2 cylinder 51; a rubber block 531 that is in flexible contact with the side wall of the battery cell 81 is glued and fixed on the side clamping block 53.

[0042] During the packaging process, when the two turning tables 2 are in a horizontal state, the pre-cut aluminum-plastic film 82 is horizontally grasped and placed on the tabletops of the two turning tables 2 by a suction grasping robot specifically for grasping the aluminum-plastic film 82. It should be noted that, on the one hand, the suction grasping robot automatically grasps the aluminum-plastic film 82 between the placement point and the packaging equipment, and on the other hand, the pre-cut aluminum-plastic film 82 is placed in a standardized manner at the placement point. Therefore, the aluminum-plastic film 82 can be basically placed on the two turning tables 2, with the two rectangular notches of the aluminum-plastic film 82 facing the two side clamps 53. After the placement is completed, the two suction platforms 21 immediately absorb and fix the aluminum-plastic film 82. The suction fixation can not only maintain the flat state of the aluminum-plastic film 82, but also prevent displacement caused by subsequent operations.

[0043] In order to realize automatic packaging, the battery cell 81 can also be equipped with an existing robot for automatic grabbing and placement; after the aluminum-plastic film 82 is adsorbed and fixed, the robot automatically grabs the battery cell 81 and places it vertically on the material table 11, with the positive and negative electrode sheets 811 at the top of the battery cell 81. It should be noted that the thickness of the battery cell 81 is sufficient to allow its bottom to be placed stably on the material table 11; then, the No. 2 cylinder 51 is started, and its output end contracts, and the two side clamps 53 are pulled horizontally and relatively close to each other through the two connecting rods 52, and then the battery cell 81 is horizontally clamped between the two rubber blocks 531. The specific state can be seen Figure 8 and Figure 9 As shown; it should be added here that the two sides of the battery cell 81 are only flexibly placed between the two rubber blocks 531, which mainly play the role of side clamping positioning to ensure that the battery cell 81 is in the center position between the two rectangular notches of the aluminum-plastic film 82, and will not produce a potential squeezing and breaking effect on the battery cell 81.

[0044] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 、 Figure 9 、 Figure 10 and Figure 11 The frame 1 is equipped with a pressing mechanism 6 for pressing the top of the battery cell 81 and located directly above the material table 11; the pressing mechanism 6 includes a No. 3 cylinder 61 vertically fixed to the top of the frame 1 by bolts, a stroke seat 62 horizontally fixed to the output end of the No. 3 cylinder 61, and a pressing member 63 assembled on the stroke seat 62; the pressing member 63 includes two pressure touch plates 631 installed at the bottom end of the stroke seat 62 for horizontal relative sliding along the width direction of the material table 11, and a contraction block 632 that can elastically contract is glued and fixed between the two pressure touch plates 631, and the contraction block 632 is fixed to the bottom end of the stroke block by screws and is located directly above the material table 11. The contraction block 632 is specifically made of memory rubber; a rubber layer is attached to the bottom end of the pressure touch plate 631, which flexibly presses the top of the battery cell 81, and the gap between the two pressure touch plates 631 can avoid the positive and negative electrode sheets 811.

[0045] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 7 、 Figure 10 and Figure 11 The travel seat 62 is equipped with a lifting actuator 7 that cooperates with the two tensioning mechanisms 3 to realize the lifting and tensioning of the aluminum-plastic film 82; the lifting actuator 7 includes a hanging guide block 71 that is vertically slidably mounted on the travel seat 62, and the top of the hanging guide block 71 is integrally formed with an overlapping edge, so that the top of the hanging guide block 71 overlaps the top of the travel seat 62; a contact plate 72 is welded to the bottom end of the hanging guide block 71, and two lifting rollers 73 distributed on both sides of the lower pressure piece 63 are horizontally rotatably mounted on the contact plate 72, and the two lifting rollers 73 are correspondingly arranged with the two tensioning mechanisms 3; in the present invention, when the turning table 2 is vertical and the lower pressure piece 63 presses on the top of the battery cell 81, the lifting roller 73 is located below the corresponding lifted plate 321.

[0046] See Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 and Figure 7 The side clamping mechanism 5 also includes a lifting member 54 fixed to the output end of the No. 2 cylinder 51 and linked with the two side clamping blocks 53; the lifting member 54 includes a horizontal plate 541 horizontally fixed to the output end of the No. 2 cylinder 51 by bolts, a guide rod 542 vertically fixed to the horizontal plate 541 by bolts, and a lifting plate 543 horizontally fixed to the top of the guide rod 542 by bolts; the guide rod 542 is installed on the frame 1 in a lifting and sliding manner, and the lifting plate 543 is located below the contact plate 72.

[0047] After the side clamp positioning is completed, the No. 3 cylinder 61 is started to drive the stroke seat 62 to descend, causing the two pressure contact plates 631 to descend accordingly, avoiding the electrode sheet 811, and synchronously pressing on the top of the battery cell 81; the lifting actuator 7 descends synchronously with the stroke seat 62.

[0048] Subsequently, the two turning tables 2 are driven to turn upward toward each other, and the turning tables 2 synchronously drive the aluminum-plastic film 82 to fold stably through the adsorption platform 21. During the folding process, if the battery cell 81 is placed slightly to one side in the width direction of the material table 11, the turning table 2 on that side will push the battery cell 81 to move to the other side. When the turning table 2 is turned to a vertical state, the battery cell 81 is basically in the center position of the material table 11, and the two lifting rollers 73 are also just located below the two lifted plates 321. It should be noted that in order to avoid the two turning tables 2 from squeezing the battery cell 81, the aluminum-plastic film 82 is not completely squeezed and pressed against the two side surfaces of the battery cell 81.

[0049] Before edge sealing, the aluminum-plastic film 82 can be pulled upward and tensioned; specifically, the two adsorption platforms 21 first release the adsorption and fixing effect on the aluminum-plastic film 82, and then start the No. 2 cylinder 51 to drive the two side clamping blocks 53 to slide back and forth, so that the side clamping blocks 53 are moved away from between the two edge sealing plates 42 to complete the avoidance. At the same time, the No. 2 cylinder 51 drives the lifting member 54 to move upward. After moving up for a while, the lifting plate 543 contacts the contact plate 72. Under the sliding cooperation of the hanging guide block 71 and the stroke seat 62, the lifting actuator 7 rises as a whole, and the lifting actuator 7 lifts the two lifted plates 321 accordingly through the two lifting rollers 73. The two sliding bottom frames 31 slide upward, indirectly causing the moving pin 341 to move along the track groove 231, and the moving pin 341 moves from the track groove When the arc segment of 231 moves to the vertical segment, the two clamping roller frames 34 produce a near-to-near displacement in the horizontal direction, so that both ends of the aluminum-plastic film 82 are clamped between a row of clamping rollers 35 and the side wall of the pressure touch plate 631, and the shrinking block 632 is squeezed and contracted horizontally, and the two pressure blocks approach synchronously, and the two ends of the aluminum-plastic film 82 are retracted and naturally adhere to the two side surfaces of the battery cell 81. Then, while keeping the battery cell 81 pressed, the lifting actuator 7 continues to rise, so that a row of clamping rollers 35 rolls upward. Under the upward clamping driving force of the clamping rollers 35, the two ends of the aluminum-plastic film 82 are lifted and tensioned, and the aluminum-plastic film 82 is forced to further wrap and adhere to the battery cell 81. Combined with the material properties of the aluminum-plastic film 82 itself, the shaping and wrapping effect of the aluminum-plastic film 82 on the battery cell 81 is greatly improved. It should be noted that the upward movement distance of the sliding bottom frame 31 is smaller than the upward movement distance of the lifting member 54, and the upward tensioning distance of the two tensioning mechanisms 3 on both ends of the aluminum-plastic film 82 is actually short. The purpose of pulling and tensioning upward is only to ensure the tightness of the plastic wrapping, and excessive pulling will not cause the aluminum-plastic film 82 to be pulled and deformed, and excessive wrapping force will not be formed on the battery cell 81.

[0050] Subsequently, while maintaining the two ends of the aluminum-plastic film 82 in a state of lifting and clamping, the two No. 1 cylinders 411 are started synchronously. Driven by the two driving assemblies 41, the two sets of edge sealing plates 42 on the two turning tables 2 move toward each other, and the two edge sealing plates 42 on the same side of the battery cell 81 are close to the side wall of the battery cell 81 to perform hot pressing and edge sealing on the aluminum-plastic film 82. After maintaining the hot pressing for a few seconds, the two sets of edge sealing plates 42 are separated and returned to their initial positions under the driving of the two driving assemblies 41 again. Then, the two turning tables 2 are turned over to a horizontal state. During the turning process, the lifted plate 321 is separated from the lifting roller 73. Under the tension of the tension spring 33, the sliding bottom frame 31 and the clamping roller frame 34 are reset. Then, the pressing member 63 rises and resets, the pressure on the battery cell 81 is released, and the lifting actuator 7 rises as a whole along with the stroke seat 62, and finally the battery cell 81 that has completed one package can be removed.

[0051] The present invention provides an aluminum-plastic film packaging device for solid-state batteries. When a solid-state battery cell 81 is packaged once, the cell 81 is placed vertically instead of the traditional horizontal packaging. A structural layout is adopted in which a material table 11 is arranged in the middle and flip tables 2 are arranged on both sides. The two flip tables 2 are both provided with an adsorption platform 21 for adsorbing and fixing the aluminum-plastic film 82. The aluminum-plastic film 82 can be flattened, fixed, and stably folded relative to each other. The edge sealing mechanism 4 correspondingly arranged on the flip tables 2 can realize synchronous centering and edge sealing processing, thereby avoiding the problem of single-side edge sealing force of the cell 81 during edge sealing under the existing horizontal placement condition and ensuring uniform force on the cell 81. Uniformity is provided to form protection; a side clamping mechanism 5 is provided between the two turning tables 2 for placing and positioning the battery cell 81, which can realize packaging positioning, and is convenient for the aluminum-plastic film 82 to be accurately cut in advance and reduce the margin to save the use of film material. At the same time, it is convenient for the edge sealing plate 42 to perform the edge sealing operation on the battery cell 81, and improve the tightness of the edge sealing wrapping on both sides of the battery cell 81 while ensuring effective sealing; in addition, before the edge sealing operation, with the cooperation of the pressing mechanism 6 to press the battery cell 81, the aluminum-plastic film 82 can be pulled and tensioned by the tensioning mechanism 3 correspondingly arranged on the two turning tables 2, so as to further improve the tightness of the aluminum-plastic film 82 in shaping and wrapping the battery cell 81.

[0052] To sum up, the equipment provided by the present invention can ensure the uniformity of force applied to the battery cell 81 during packaging, indirectly protect the battery cell 81, and improve the tightness of the plastic wrapping of the aluminum-plastic film 82 on the battery cell 81 through various methods such as packaging positioning and pulling and tensioning the aluminum-plastic film 82, thereby reducing the impact of the obvious packaging gap on the mechanical buffering protection, heat dissipation, battery module assembly difficulty and lightweight of the battery cell 81, thereby improving the overall quality and service life of the battery.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0054] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0055] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A solid-state battery aluminum-plastic film packaging device, characterized in that: include: A frame, on which a material table is provided on which the power core is placed vertically; Two turning tables are symmetrically arranged on both sides of the material table and are set on the frame in a horizontal relative turning drive; the two turning tables turn between a horizontally unfolded state and an upward vertical state; the turning tables are provided with an adsorption platform for adsorbing and fixing the aluminum-plastic film; Two tensioning mechanisms are symmetrically arranged on the two turning platforms; when the turning platforms are vertical, the tensioning mechanisms are located on the upper side of the adsorption platforms; Two edge sealing mechanisms are symmetrically arranged on the two turning tables; the edge sealing mechanisms include two edge sealing plates that are vertically driven relative to the adsorption surface of the adsorption platform for hot-pressing the aluminum-plastic film, and the adsorption platform and the tensioning mechanism are located between the two edge sealing plates; The side clamping mechanism is provided on the frame and located between the two turning tables, and is used to clamp the battery cells laterally; The pressing mechanism is installed on the frame and is located directly above the material table, and is used to press the top of the battery cell; And the lifting actuator is assembled at the lifting end of the pressing mechanism. When the flip table is vertical and the adsorption platform releases the adsorption, during the process of the side clamping mechanism releasing the clamping, the two tensioning mechanisms are indirectly driven by the lifting actuator, driving the aluminum-plastic film to be lifted and tensioned, and tightly wrapped around the battery cell.

2. The aluminum-plastic film packaging device for solid-state batteries according to claim 1, characterized in that: The turning table is symmetrically provided with avoidance grooves on both sides of the adsorption platform in the axial direction of the rotating shaft; the two edge sealing plates are symmetrically arranged at the two avoidance grooves; when the turning table is horizontal and the edge sealing plates are in contact with the avoidance grooves, the upper end surface of the material table, the adsorption surface of the adsorption platform and the edge sealing surface of the edge sealing plates are horizontally aligned.

3. The aluminum-plastic film packaging device for solid-state batteries according to claim 2, characterized in that: The tensioning mechanism includes a sliding bottom frame embedded and slidably mounted on the turning table, a connecting frame fixed on the sliding bottom frame, and an elastic connection between the connecting frame and the turning table; a tensioning member is slidably mounted in the sliding bottom frame, and the tensioning member is guided to slide by the turning table; When the turning platform is vertical and the sliding bottom frame is pulled upward by the connecting frame, the tensioning member first slides horizontally outward on the sliding bottom frame, and then moves upward synchronously with the sliding bottom frame.

4. The aluminum-plastic film packaging device for solid-state batteries according to claim 3, characterized in that: A slide groove is provided on the end face of the turning table on the same side as the adsorption platform, and the sliding bottom frame is embedded in the slide groove and slides; the tensioning part includes a clamping roller frame slidably installed in the sliding bottom frame and a plurality of clamping rollers horizontally rotatably installed in the clamping roller frame; the clamping roller frame slides in a direction perpendicular to the adsorption surface; track grooves are relatively opened on the two side walls of the slide groove located in the axial direction of the clamping roller, and two moving pins symmetrically distributed on both sides are installed on the clamping roller frame for horizontal rotation, and the moving pins move along the track groove on the adjacent side; when the turning table is vertical, the clamping rollers are arranged vertically, and the track groove contains arc segments and vertical segments from bottom to top, and the vertical segment is horizontally closer to the material table than the arc segment.

5. The aluminum-plastic film packaging device for solid-state batteries according to claim 4, characterized in that: The side clamping mechanism includes two side clamping blocks that are horizontally and reversely slidably arranged on both sides of the material table, and the side clamping blocks are located between the two turning tables; a lifting piece that is vertically slidably installed on the frame and cooperates with the two side clamping blocks; when the turning table is vertical, the downward pressure mechanism is pressed against the top of the battery cell, and the two side clamping blocks slide relatively away from each other, the lifting piece is synchronously driven to lift the lifting actuator upward, and the lifting actuator synchronously pulls the two connecting parts upward, and the two sliding bottom frames slide upward accordingly.

6. The aluminum-plastic film packaging device for solid-state batteries according to claim 5, characterized in that: The pressing mechanism includes a travel seat that is arranged to be lifted and lowered and a pressing member arranged on the travel seat; the lifting actuator is vertically slidably installed on the travel seat; the pressing member includes two pressure touch plates that are horizontally relatively slidably installed at the bottom end of the travel seat, and a contraction block that can elastically contract is fixed between the two pressure touch plates, and the contraction block is fixed at the bottom end of the travel block.

7. The aluminum-plastic film packaging device for solid-state batteries according to claim 6, characterized in that: When the sliding bottom frame slides upward, the moving pin moves from the arc segment of the track groove to the vertical segment, the aluminum-plastic film is clamped between the pressure touch plate and the clamping roller, and the shrink block shrinks horizontally in the sliding direction of the pressure touch plate.

8. The aluminum-plastic film packaging device for solid-state batteries according to claim 6, characterized in that: The lifting actuator includes a hanging guide block vertically slidably installed on the travel seat, and the top of the hanging guide block overlaps the top of the travel seat; a contact plate is fixed to the bottom end of the hanging guide block, and two lifting rollers distributed on both sides of the lower pressure piece are horizontally installed on the contact plate, and the two lifting rollers are correspondingly arranged with two tensioning mechanisms; the connecting frame includes a lifted plate, and when the turning table is vertical and the lower pressure piece presses on the top of the battery cell, the lifting roller is located below the corresponding lifted plate.

9. The aluminum-plastic film packaging device for solid-state batteries according to claim 8, characterized in that: The side clamping mechanism also includes a lifting drive end, and connecting rods are hinged between the two side clamping blocks and the lifting drive end; the lifting member is fixedly connected to the lifting drive end.

10. The aluminum-plastic film packaging device for solid-state batteries according to claim 9, characterized in that: The jacking member includes a horizontal plate horizontally fixed on the lifting drive end, a guide rod vertically fixed on the horizontal plate, and a jacking plate horizontally fixed on the top of the guide rod; the guide rod is slidably installed on the frame, and the jacking plate is located below the contact plate.

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