WO2023213306A1

WO2023213306A1 - Slideway alternating type lamination platform for cell manufacturing, and lamination and separator pressing process thereof

Info

Publication number: WO2023213306A1
Application number: PCT/CN2023/092326
Authority: WO
Inventors: 陈开献; 李丰顺; 刘成; 彭强; 唐延弟; 宾兴
Original assignee: 深圳市兴禾自动化股份有限公司
Priority date: 2022-05-05
Filing date: 2023-05-05
Publication date: 2023-11-09
Also published as: CN115036580A; KR20240087824A

Abstract

The present application discloses a slideway alternating type lamination platform for cell manufacturing and a lamination separator pressing process thereof. The lamination platform comprises a lamination table and separator pressing assemblies arranged on the left and right sides of the lamination table. The lamination table is horizontally arranged so as to horizontally carry a separator or an electrode plate; there are two groups of separator pressing assemblies, and the two groups of separator pressing assemblies are respectively arranged on the left and right sides of the lamination table; an upper slideway and a lower slideway arranged at intervals in a vertical direction are arranged in each separator pressing assembly; one end of each of the upper slideway and the lower slideway close to the lamination table is of an open structure, and the other end is provided with a flexible opening; each separator pressing member is driven by vertical power to transfer from the lower slideway to the upper slideway at the open structure at one end of each of the upper slideway and the lower slideway and at the flexible opening at the other end; each flexible opening is automatically sealed so that the separator pressing member linearly moves on the upper slideway.

Description

A kind of electric core made of slideway rotating lamination platform and its lamination and diaphragm pressing process

Related applications

This application claims priority to the Chinese patent application with application number 202210478526.5 filed on May 5, 2022, the entire content of which is incorporated into this application by reference.

Technical field

This application relates to the field of lithium-ion power battery manufacturing, and specifically refers to a slide-type stacking platform for battery cores used in automated battery core lamination manufacturing and its stacking and diaphragm pressing process.

Background technique

Lithium battery Lithium battery refers to a battery containing lithium in the electrochemical system, including metallic lithium, lithium alloys, lithium ions, and lithium polymers. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium-ion batteries. A lithium battery is a rechargeable battery that relies primarily on the movement of lithium ions between the positive and negative electrodes to work. Batteries that generally use materials containing lithium as electrodes are representatives of modern high-performance batteries. As the country vigorously promotes the development of new energy, the demand for lithium-ion power batteries in all walks of life is growing day by day. In the composition structure of lithium-ion power batteries, the battery core is its core component. The battery core is generally composed of positive and negative electrode sheets interlaced with each other. become. The battery core structure includes multiple positive and negative electrode sheets staggered up and down. The positive and negative electrode sheets are isolated and insulated by separators. At present, domestic technologically advanced lithium battery equipment is mainly in the hands of foreign equipment suppliers, and domestic high-end lithium battery lamination equipment currently mainly relies on imports.

The cells of lithium-ion batteries are generally formed by staggered positive and negative electrode sheets, and an insulating separator needs to be inserted between the positive and negative electrode sheets. At present, the manufacturing process of battery cells includes two methods: strip lamination and single-chip lamination, depending on the separator insertion process. That is, continuous separators and single-chip separator lamination are used during lamination. For the strip lamination process, the positive and negative electrode sheets are alternately placed on the lamination platform during lamination. The strip-shaped separator is pulled back and forth on the lamination platform. After the positive electrode sheet or negative electrode sheet is stacked, it is covered with the positive electrode sheet or the negative electrode sheet. The surface of the negative electrode sheet, and then cut the separator; in this lamination method, the strip separator is tensioned and pulled back and forth during the lamination process. There is internal stress. After cutting, wrinkles will appear on the surface of the separator, which affects the quality of the battery core. . For the single-chip stacking process, the separator is cut into a single-piece structure before lamination. After stacking the positive and negative electrode sheets, the single-piece separator is stacked on the surface of the positive electrode sheet or negative electrode sheet to achieve lamination. This lamination process requires many The diaphragms are taken and stacked one after another, resulting in low lamination efficiency. In order to ensure the position accuracy of each lamination, the diaphragms need to be aligned before lamination. It is difficult to effectively guarantee the position accuracy of the laminations.

Regarding the strip lamination process, during the automated lamination design process, there are the following technical difficulties that need to be solved: During the lamination process, the continuous separator strips are pulled apart and the positive or negative electrode sheets are stacked on them. , then the separator is pulled back to the positive electrode sheet or the negative electrode sheet, the separator tape covers the film back and forth along the Z-shaped path, and the pole sheets of different polarities are stacked on the separator one after another; based on the above lamination principle, in During the process of laminating the left and right sides of the diaphragm, it is necessary to compress the horizontal diaphragm that has been covered on the lamination platform to prevent it from being lifted up when the film is subsequently pulled. The traditional laminating mechanism generally drives a suspended press plate through a cylinder to press the diaphragm from the outside of the lamination platform. Since it also needs to avoid interference with the lamination movement during the lamination process, the lamination process cannot only be done from the vertical direction. To press, the tablet needs to have retraction force in the horizontal direction; in order to achieve this requirement, the existing laminating device uses cam transmission to achieve vertical and horizontal drive. The transmission is unstable and affects the tableting process. The structural design is very complex, the force transmission path is long, and the transmission error is large.

Technical solutions

The technical problem to be solved by this application is to address the shortcomings of the prior art and provide an electric film using a slide guide to reduce the transmission error of the lamination and ensure the stability, movement accuracy and flatness of the lamination. The core is made into a sliding track rotating lamination platform and its lamination pressing diaphragm process.

The first aspect of this application provides: a slide-type stacking platform made of electric cores, including a lamination support and laminating components arranged on the left and right sides of the lamination support, wherein the lamination support is horizontal Set up to horizontally carry the diaphragm or pole piece; the film pressing assembly includes two groups, and the two groups of pressing film components are respectively arranged on the left and right sides of the lamination support;

The inside of the lamination assembly is provided with an upper slideway and a lower slideway spaced up and down along the vertical direction. The upper slideway and the lower slideway are arranged horizontally. The lamination component of the lamination assembly moves cyclically along the upper slideway and the lower slideway so that During the lamination process, move horizontally from the front or rear side of the lamination support from the outside of the lamination support to the direction of the lamination support, and press the diaphragm on the lamination support vertically downward;

The upper slideway and the lower slideway have an open structure at one end close to the lamination support, and a flexible opening at the other end. The lamination component is driven by vertical power at the open structure at one end of the upper slideway and the lower slideway and at the other end of the flexible opening. The opening is transferred from the lower slide to the upper slide; the flexible opening is automatically closed so that the lamination component can move linearly on the upper slide.

This application also provides a laminating and laminating process for making electric cores into a sliding track alternating laminating platform, which includes the following process steps:

S1. Film coating: The diaphragm is spread horizontally and covers the laminated support;

S2. Lamination: stack the positive electrode sheet or negative electrode sheet on the horizontally opened diaphragm on the lamination support in step S1;

S3. Secondary pressing: the diaphragm in the diaphragm unwinding mechanism is pulled open again and horizontally covered on the pole piece stacked on the diaphragm in step S2;

S4. Lamination: In steps S1 and S3, the horizontally covered diaphragm on the lamination support is compressed by the lamination components on the left and right sides of the lamination support; the compression tablets move in the horizontal and vertical directions. Film pressing; the film pressing component is internally provided with an upper slideway and a lower slideway that are spaced up and down along the vertical direction, and the upper slideway and the lower slideway are set horizontally; when the tablet press moves horizontally and vertically, it passes through the upper slideway and the lower slideway. The lower slide is guided and limited; one end of the upper slide and the lower slide is an open structure, and the other end of the upper slide is a flexible opening; the flexible opening is automatically sealed to maintain the linear motion of the tablet on the upper slide.

Description of the drawings

Figure 1 is one of the three-dimensional structural schematic diagrams of the present application.

Figure 2 is the second schematic diagram of the three-dimensional structure of the present application.

Figure 3 is one of the three-dimensional structural schematic diagrams of the lamination module of the present application.

Figure 4 is the second schematic diagram of the three-dimensional structure of the lamination module of the present application.

Figure 5 is one of the three-dimensional structural schematic diagrams of the lamination module of the present application.

Figure 6 is the second schematic diagram of the three-dimensional structure of the lamination module of the present application.

Figure 7 is the third schematic diagram of the three-dimensional structure of the lamination module of the present application.

Figure 8 is one of the structural schematic diagrams of the components of the lamination assembly of the present application.

Figure 9 is the second structural schematic diagram of the components of the lamination assembly of the present application.

Figure 10 is the third structural schematic diagram of the components of the lamination assembly of the present application.

Figure 11 is the fourth structural schematic diagram of the components of the lamination assembly of the present application.

Figure 12 is the fifth component structural diagram of the lamination assembly of the present application.

Figure 13 is the sixth component structural diagram of the lamination assembly of the present application.

Figure 14 is the seventh component structural diagram of the lamination assembly of the present application.

Figure 15 is a schematic three-dimensional structural diagram of the lifting mechanism of the present application.

Figure 16 is a flow chart of this application.

Embodiments of the invention

The present application will be further described below in conjunction with the accompanying drawings:

As shown in Figures 1 to 13, the technical solution adopted in this application is as follows: a battery core is made of a sliding track rotating lamination platform, which includes a lamination support 91 and presses arranged on the left and right sides of the lamination support 91 Membrane assembly 92, in which the lamination support 91 is arranged horizontally to carry the diaphragm or pole piece horizontally; the membrane pressing assembly 92 includes two groups, and the two groups of pressing membrane assemblies 92 are respectively arranged on the left and right sides of the lamination support 91 both sides;

The inside of the lamination assembly 92 is provided with an upper slideway and a lower slideway spaced up and down along the vertical direction. The upper slideway and the lower slideway are arranged horizontally. The lamination components of the lamination assembly 92 move cyclically along the upper slideway and the lower slideway. , so that during the lamination process, the lamination support 91 can move horizontally from the front or rear side of the lamination support 91 from the outside of the lamination support 91 to the direction of the lamination support 91 , and press the lamination support 91 vertically downward. diaphragm;

One end of the upper slideway and the lower slideway close to the lamination support 91 is an open structure, and the other end is provided with a flexible opening. The lamination component is driven by vertical power at the open structure at one end of the upper slideway and the lower slideway and at the other end. The flexible opening is transferred from the lower slide to the upper slide; the flexible opening is automatically closed so that the lamination component can move linearly on the upper slide.

The lamination assembly 92 includes a lamination support plate 921, a horizontal power component, a lamination component, a slide changer component, and a slide component. The lamination support plate 921 is horizontally disposed on the front or rear side of the lamination support 91. side; the horizontal power component is arranged on the lamination support plate 921, and the power output direction is horizontally arranged along the direction perpendicular to the front or rear side of the lamination support 91; the lamination component is connected to the horizontal power component on the output end, and is movably connected with the output end of the horizontal power component in the vertical direction; the slide change component is arranged on the horizontal power component, and the output end is arranged in the vertical direction and connected to the lamination film on the component; the slide component is arranged on the lamination support plate 921, and the slide component includes an upper slide and a lower slide that extend horizontally along the power output direction of the horizontal power component; the lamination component is driven by the horizontal power component to slide upward The slideway or the lower slide moves horizontally and linearly, and is driven by the slideway replacement component to transfer between the upper slideway and the lower slideway.

The horizontal power components include a linear motor 922, a motor slide 923 and a horizontal drive slide 924. The linear motor 922 is horizontally arranged on the lamination support plate 922; the motor slide 923 is vertical to the lamination support 91 The front side or the rear side is movably arranged horizontally on the linear motor 922, and is driven by the linear motor 922 to move linearly; the horizontal driving slide 924 is connected to the motor slide 923.

The pressing component includes a vertical slide rail 925, a lifting slide 926, a pressing sheet 927 and a guide wheel 929. The vertical slide rail 925 is arranged on the side wall of the horizontal driving slide 924 in the vertical direction; the lifting The slide seat 926 is slidably embedded in the vertical slide rail 925; the pressing film 927 is horizontally connected to the side wall of the lifting slide seat 926 and faces perpendicular to the front or rear side of the lamination support 91 The guide wheel 929 extends in the direction; the guide wheel 929 is connected to the lifting slide 926 through the connecting block, and the guide wheel 929 rolls freely on the upper slide or the lower slide, and is limited and guided by the upper slide or the lower slide.

The slide changing component includes a slide changing cylinder 928, wherein the slide changing cylinder 928 is connected to the horizontal driving slide 924, and the output end is set in the vertical direction and connected to the lifting slide 926 to drive the lifting slide. The seat 926 drives the diaphragm 927 to move from the lower slide to the upper slide against the influence of gravity.

The slideway component includes a slideway support plate 9210, an upper slideway 9215, a lower slideway 9216 and a flexible sealing member. The slideway support plate 9210 is arranged vertically on the lamination support plate 921, and is perpendicular to the lamination support. The front side or rear side of the platform 91 extends; the upper slide 9215 and the lower slide 9216 are spaced up and down on one side wall of the slide support plate 9210, and are in the same extension direction as the slide support plate 9210 ; The upper slideway 9215 extends horizontally, and has a flexible opening at one end away from the lamination support 91; the two ends of the lower slideway 9216 are provided with transitional slopes, and the transitional slopes slope downward toward the direction close to the lamination support 91 Extend; the flexible sealing member is provided at the flexible opening.

The flexible sealing member includes a sealing support 9211, a sealing rocker 9212, a sealing spring 9213, and a sealing plate 9214. The sealing support 9211 is provided on the other side wall of the slide support plate 9210; the sealing rocker 9212 One end is rotatably connected to the sealing support 9211, and the other end extends to the flexible opening and is connected to the sealing spring 9213 provided on the sealing support plate 9210; the sealing plate 9214 is horizontally connected to the sealing rocker 9212, And is located in the flexible opening. In the natural state, the elastic force of the sealing spring 9213 drives the sealing plate 9214 downward through the sealing swing block 9212, so that the sealing plate 9214 maintains a horizontal state and is fastened to the flexible opening to seal the flexible opening. At the sealing point, the slide cylinder 928 drives the lifting slide 926 to move upward, and the lifting slide 926 drives the guide wheel 929 to push the sealing plate 9214 upward, so that the guide wheel 929 enters the upper slide 9215 from the lower slide 9216 through the flexible opening, and the guide wheel 929 After fully entering the upper slide 9215, the sealing plate 9214 is automatically pulled to the level by the sealing spring 9213, so that the guide wheel 929 can roll linearly on the upper slide 9215.

In one embodiment, as shown in FIGS. 14 and 15 , the application also includes a slide rail 10 and a lifting mechanism 11 . The slide rail 10 includes an upper slide rail and a lower slide rail arranged at parallel intervals along the vertical direction. The upper slide rail and Lifting stations are respectively provided at the corresponding upper and lower positions on both sides of the lower rail, and a lamination station is provided on the upper slide rail, and a blanking station is provided at one end of the lower rail; the above-mentioned lamination platform is slidably provided on the slide rail 10 , driven by the conveyor belt on the side of the slide rail 10 to move linearly; the above-mentioned lifting mechanism 11 includes two sets, which are respectively installed at the lifting stations on both sides. The lifting mechanism 11 receives the lamination platform and drives the lamination platform to move on the upper slide rail. and transfer between lower rails.

The lifting mechanism 11 of the present application includes a lifting support 111, a lifting motor 112 and a lifting slide 113. The above-mentioned lifting support 111 is arranged vertically, and a screw rod is vertically provided in the middle of the lifting support 111. The two ends of the screw rod are respectively Rotably connected to the bottom plate and top plate of the lifting support 111, two linear slide rails are vertically provided on one side wall of the lifting support 111; the above-mentioned lifting motor 112 is provided on the bottom plate of the lifting support 111, and outputs The shaft is connected to the screw through a transmission belt; the above-mentioned lifting slide 113 is slidably connected to the linear slide rail, the side of the lifting slide 113 is threadedly connected to the screw through the screw seat, and the lifting motor 112 drives the screw to rotate. The rod drives the lifting support 111 to move up and down through the screw seat.

As shown in Figure 16, this application also provides a laminating and laminating process for making battery cells into a slideway alternating lamination platform, which includes the following process steps:

S1. Film coating: The diaphragm is spread horizontally to cover the lamination support, and the empty platform is supplied: After the pole piece group that has been laminated on the lamination platform is taken out of the unloading station, the empty lamination platform moves along the lower rail to the lifting position. At the mechanism, the lifting mechanism transfers the lamination platform to the upper slide rail, and the lamination platform moves along the upper slide rail to the lamination station;

In one embodiment, S4 also includes platform unloading: after forming the battery core pole piece group, the stacking platform moves linearly on the upper slide rail to the lowering station, is transferred to the lower rail via the lifting mechanism, and moves along the lower rail Move straight to the blanking station.

This application designs a method that uses a lamination platform to circulate along a rectangular path to realize automatic loading of laminations and pole piece groups, effectively reducing the waiting time for materials and greatly improving the production capacity of the entire line.

In response to the integration needs of the battery cell automation production line, this application creatively uses the lamination platform as both the lamination carrying and pole piece carrying structure. The upper and lower rails are spaced up and down to form the movement path of the lamination platform. Lifting mechanisms are respectively provided on both sides of the slide rail and the lower rail to form a rectangular movement path. The upper slide rail realizes the supply of empty platforms, and the lower rail is used to load the full platform of the pole piece group after stacking. There is a The stacking station has a unloading station at one end of the lower rail extending outward. Multiple lamination platforms flow between the lamination station and the unloading station to achieve cyclic supply of platforms. After lamination is completed, the full platform moves After leaving, the next empty platform is connected to the lamination station for lamination, which effectively reduces the waiting time between lamination and blanking, while improving the automation of the entire line and greatly increasing the production capacity of the entire line.

This application designs a slide-type rotating lamination platform and its lamination made of battery cores that use slide-type guided lamination to reduce lamination transmission errors and ensure the stability, movement accuracy and flatness of the lamination. Press diaphragm process. This application has the same function as the traditional lamination platform, that is, it is used to carry the pole pieces and diaphragms, and assists in compressing the diaphragm during the lamination process. Based on the above process requirements, the lamination platform of this application includes a lamination support arranged in the middle The platform is used to carry the pole pieces and diaphragms horizontally, and also includes lamination components arranged on the front and rear sides of the lamination support. The lamination assembly is used to press the lamination support after the diaphragm is covered on the lamination support or the pole piece. The upper horizontally covered diaphragm is pressed tightly for subsequent lamination. The difference between this application and the prior art is that the lamination assembly of this application completely adopts a lamination method that is different from the prior art. The upper slide and the lower slide, which are horizontally spaced up and down, serve as the load-bearing and guide during the lamination movement. The carrier and tablet press realize movement from the horizontal and vertical directions during the cyclic movement along the movement path formed by the upper slide and the lower slide, which not only ensures the requirement for vertical downward pressure during film pressing, but also achieves It retracts outward in the horizontal direction to avoid interference with the lamination movement, and this slide guide structure forms a stable motion path for lamination. Compared with the existing lamination process, the transmission path is reduced. The transmission error is reduced, and the stable motion guide structure ensures the stability during the tableting movement and effectively improves the accuracy of the film pressing. Specifically, the lamination component of the present application includes a lamination support plate, a horizontal power component, a lamination component, a slide changer component and a slide component. The lamination support plate is horizontally arranged on the front or rear side of the lamination support; The horizontal power component is arranged on the lamination support plate, and the power output direction is set horizontally along the direction perpendicular to the front side or the rear side of the lamination support; the lamination component is connected to the output end of the horizontal power component, and is vertically connected to the output end of the horizontal power component. The output end of the horizontal power component is movably connected in the straight direction; the slide change component is arranged on the horizontal power component, and the output end is arranged in the vertical direction and connected to the lamination component; the slide component is disposed on the lamination component. On the support plate, the slide component includes an upper slide and a lower slide that extend horizontally along the power output direction of the horizontal power component; the laminating component is driven by the horizontal power component to move horizontally and linearly along the upper slide or the lower slide, and is replaced by the slide. The components are driven to transfer between the upper slide and the lower slide.

The embodiments of the present application are only to introduce the specific implementation, and are not intended to limit the scope of protection. Those skilled in the industry can make certain modifications inspired by this embodiment. Therefore, any equivalent changes or modifications made in accordance with the patent scope of this application fall within the scope of the patent claims of this application.

Claims

An electric core is made into a sliding track rotating lamination platform, which includes a lamination support (91) and lamination components (92) arranged on the left and right sides of the lamination support (91), wherein the lamination support The platform (91) is set horizontally to carry the diaphragm or pole piece horizontally; the lamination assembly (92) includes two groups, and the two groups of lamination assembly (92) are respectively arranged on the left and right sides of the lamination support (91);

The lamination component (92) is provided with an upper slideway and a lower slideway spaced up and down along the vertical direction. The upper slideway and the lower slideway are arranged horizontally. The lamination component of the lamination component (92) is along the upper slideway and the lower slideway. The lower slide moves cyclically so that during the lamination process, it moves horizontally from the front or rear side of the lamination support (91) from the outside of the lamination support (91) to the direction of the lamination support (91), and vertically. Press down the diaphragm on the lamination support (91);

One end of the upper slideway and the lower slideway close to the lamination support (91) is an open structure, and the other end is provided with a flexible opening. The lamination component is driven by vertical power at both ends of the upper slideway and the lower slideway. The lower slide is transferred to the upper slide; the flexible opening is automatically closed so that the lamination component can move linearly on the upper slide.
An electric core made of a sliding track rotation laminating platform according to claim 1, wherein the laminating assembly (92) includes a laminating support plate (921), a horizontal power component, a laminating component, and a slide changer. path components and slide components, wherein the lamination support plate (921) is horizontally arranged on the front or rear side of the lamination support (91); the horizontal power component is disposed on the lamination support plate (921) , and the power output direction is set horizontally along the direction perpendicular to the front side or rear side of the lamination support (91); the lamination component is connected to the output end of the horizontal power component, and is vertically aligned with the horizontal direction. The output end of the power component is movably connected; the slide change component is arranged on the horizontal power component, and the output end is arranged in the vertical direction and connected to the lamination component; the slide component is disposed on the lamination support On the plate (921), the slideway component includes an upper slideway and a lower slideway that extend horizontally along the power output direction of the horizontal power component; the laminating component is driven by the horizontal power component to move horizontally and linearly along the upper slideway or the lower slideway, and is replaced by The slide component is driven to move between the upper slide and the lower slide.
A battery core made of slideway rotation type stacking platform according to claim 2, wherein the horizontal power components include a linear motor (922), a motor slide (923) and a horizontal driving slide (924). Wherein, the linear motor (922) is horizontally arranged on the lamination support plate (922); the motor slide (923) can be horizontally moved along the direction perpendicular to the front side or the rear side of the lamination support (91). It is movably arranged on the linear motor (922) and driven by the linear motor (922) to move linearly; the horizontal driving slide (924) is connected to the motor slide (923).
A slide-track rotating stacking platform made of electric cores according to claim 3, wherein the film-pressing component includes a vertical slide rail (925), a lifting slide (926), a film-pressing piece (927) and Guide wheel (929), wherein the vertical slide rail (925) is arranged on the side wall of the horizontal driving slide (924) along the vertical direction; the lifting slide (926) is slidably embedded in the vertical slide on the rail (925); the diaphragm sheet (927) is horizontally connected to the side wall of the lifting slide (926), and extends in a direction perpendicular to the front or rear side of the lamination support (91); The guide wheel (929) is connected to the lifting slide (926) through a connecting block, and the guide wheel (929) rolls freely on the upper slide or the lower slide, and is limited and guided by the upper slide or the lower slide.
An electric core made of a slide-way rotating lamination platform according to claim 4, wherein the slide-changing component includes a slide-changing cylinder (928), wherein the slide-changing cylinder (928) is connected to On the horizontal driving slide (924), the output end is set in the vertical direction and connected to the lifting slide (926), so that the lifting slide (926) can be driven to drive the diaphragm (927) to overcome the influence of gravity and slide down the slide. Move to the upper slide.
An electric core made of a sliding track rotating lamination platform according to claim 5, wherein the slideway components include a slideway support plate (9210), an upper slideway (9215), a lower slideway (9216) and Flexible sealing member, wherein the slide support plate (9210) is arranged vertically on the lamination support plate (921) and extends in a direction perpendicular to the front side or rear side of the lamination support (91); The upper slide (9215) and the lower slide (9216) are spaced up and down on one side wall of the slide support plate (9210), and extend in the same direction as the slide support plate (9210); the upper slide The channel (9215) extends horizontally, and a flexible opening is provided at one end away from the lamination support (91); the two ends of the sliding channel (9216) are provided with transitional slopes, and the transitional slope faces the direction close to the lamination support (91) Extending obliquely downward; the flexible sealing member is arranged at the flexible opening.
An electric core made of a sliding track rotation lamination platform according to claim 6, wherein the flexible sealing member includes a sealing support (9211), a sealing rocker (9212), a sealing spring (9213) and a sealing plate (9214), wherein the sealing support (9211) is provided on the other side wall of the slide support plate (9210); one end of the sealing swing block (9212) is rotatably connected to the sealing support (9212) 9211), the other end extends to the flexible opening and is connected to the sealing spring (9213) provided on the sealing support plate (9210); the sealing plate (9214) is horizontally connected to the sealing swing block (9212), and Located in the flexible opening, the elastic force of the sealing spring (9213) in the natural state drives the sealing plate (9214) downward through the sealing pendulum block (9212), so that the sealing plate (9214) maintains a horizontal state and is fastened to the flexible opening. The flexible opening is sealed. At the flexible sealing point, the slide cylinder (928) drives the lifting slide (926) to move upward, and the lifting slide (926) drives the guide wheel (929) to push the sealing plate (9214) upward, causing the guide wheel to (929) Enters the upper slide (9215) from the lower slide (9216) through the flexible opening. After the guide wheel (929) completely enters the upper slide (9215), the sealing plate (9214) is automatically pulled to the level by the sealing spring (9213) , so that the guide wheel (929) rolls straight on the upper slide (9215).
A battery core made of a sliding track rotating lamination platform according to claim 1, which further includes: a slide rail (10) and two sets of lifting mechanisms (11);

The slide rail (10) includes an upper slide rail and a lower slide rail arranged at parallel intervals along the vertical direction. Lifting stations are respectively provided at corresponding positions on both sides of the upper slide rail and the lower slide rail, and the upper slide rail is provided with laminations. Work station, one end of the lower rail is equipped with a blanking station;

The lamination platform is slidably disposed on the slide rail (10), and is driven by a conveyor belt on the side of the slide rail (10) to move linearly;

The two sets of lifting mechanisms (11) are respectively installed at the lifting stations on both sides. Each set of lifting mechanisms (11) is connected to the stacking platform and drives the stacking platform to transfer between the upper slide rail and the lower slide rail.
An electric core made of a slideway rotating lamination platform according to claim 8, wherein each set of the lifting mechanism (11) includes a lifting support (111), a lifting motor (112) and a lifting slide. (113);

The lifting support (111) is arranged vertically, and a screw rod is vertically provided in the middle of the lifting support (111). Both ends of the screw rod are rotatably connected to the bottom plate and the top plate of the lifting support (111). Two linear slide rails are vertically provided on one side wall of the support (111);

The lifting motor (112) is arranged on the bottom plate of the lifting support (111), and the output shaft is connected to the screw rod through a transmission belt;

The lifting slide (113) is slidably connected to the linear slide rail. The side of the lifting slide (113) is threadedly connected to the screw through a screw seat. The lifting motor (112) drives the screw to rotate. The lifting movement of the lifting support (111) is driven by the screw seat.
A laminating and laminating process for making a sliding track alternating laminating platform for battery cores according to any one of claims 1 to 9, which includes the following process steps:

S1. Film coating: The diaphragm is spread horizontally and covers the laminated support;

S2. Lamination: stack the positive electrode sheet or negative electrode sheet on the horizontally opened diaphragm on the lamination support in step S1;

S3. Secondary pressing: the diaphragm in the diaphragm unwinding mechanism is pulled open again and horizontally covered on the pole piece stacked on the diaphragm in step S2;

S4. Lamination: In steps S1 and S3, the horizontally covered diaphragm on the lamination support is compressed by the lamination components on the left and right sides of the lamination support; the compression tablets move in the horizontal and vertical directions. Film pressing; the film pressing component is internally provided with an upper slideway and a lower slideway that are spaced up and down along the vertical direction, and the upper slideway and the lower slideway are set horizontally; when the tablet press moves horizontally and vertically, it passes through the upper slideway and the lower slideway. The lower slide is guided and limited; one end of the upper slide and the lower slide is an open structure, and the other end of the upper slide is a flexible opening; the flexible opening is automatically sealed to maintain the linear motion of the tablet on the upper slide.