CN115477159A - Lamination system and production method of lamination battery - Google Patents

Abstract

The invention discloses a lamination system and a production method of a lamination battery, belonging to the technical field of battery manufacturing, and solves the problems in the prior art that pole pieces need to be grasped many times, which takes a long time and is easy to cause damage to the pole pieces. The lamination system of the present invention includes a feeding device, a conveying device, and a lamination alignment table; the conveying device includes a stator, a plurality of movers and a plurality of pole piece grabbing devices, and the number of the movers is the same as that of the pole pieces. The number of sheet grabbing devices is the same and connected in one-to-one correspondence; the stator controls the mover to move in a closed loop; the feeding device and the lamination alignment table are set on the movement track of the pole sheet grabbing device below.

Description

Lamination system and production method of lamination battery

technical field

The invention belongs to the technical field of battery manufacturing, and in particular relates to a lamination system and a production method of a lamination battery.

Background technique

In the production process of batteries, stacking is a relatively important process. At present, "z"-shaped stacking is the main method, but the productivity of this stacking method is low, which seriously affects the production cycle of the entire battery. Meet the current demand for batteries.

The prior art provides a stacking system, including: a circulation line, one side of the circulation line is provided with a plurality of feeding devices arranged at intervals along the conveying direction, and the side away from the feeding device is provided with a plurality of A stacking device arranged at intervals along its conveying direction; the feeding device includes an unwinding mechanism, a cutting mechanism and a manipulator, and the cutting mechanism is used to cut off the positive electrode roll to form a positive electrode sheet, and cut off the negative electrode roll to form a negative electrode sheet, The manipulator is located on one side of the cut-off mechanism to alternately transfer the cut positive electrode sheets and negative electrode sheets to the circulation line; the stacking device includes a stacking mechanism and a heat-pressing mechanism.

Although the above-mentioned technology realizes automatic assembly line production, in the production process, the pole piece needs to be moved to the circulation line by manipulator first, and after reaching the corresponding position, the pole piece needs to be grasped and moved from the circulation line to the stacking device. On the one hand, when grabbing the pole piece from the circulation line, it takes a certain amount of time for the lamination mechanism to align the pole piece. On the other hand, grabbing the pole piece multiple times is easy to cause damage to the pole piece.

Contents of the invention

In view of the above analysis, the present invention aims to provide a stacking system and a production method for stacked batteries to solve the problems in the prior art that the pole pieces need to be grasped many times, which takes a long time and is easy to cause damage to the pole pieces.

The purpose of the present invention is mainly achieved through the following technical solutions:

The invention provides a lamination system, including a feeding device, a conveying device and a lamination alignment table;

The conveying device includes a stator, a plurality of movers and a plurality of pole piece grabbing devices, the number of the movers is the same as the number of the pole piece grabbing devices and they are connected in one-to-one correspondence;

The stator controls the mover to move in a closed loop;

The feeding device and the lamination alignment table are arranged below the movement track of the pole piece grabbing device.

Further, the pole piece grabbing device is arranged on one side of the mover, or

The pole piece grabbing device is arranged at the bottom of the mover, and the center position of the pole piece grabbing device coincides with the center position of the mover in the vertical direction.

In a possible design, the stator is a magnetic drive stator, the magnetic drive stator includes a plurality of coils, and the magnetic drive stator is a planar magnetic drive platform or a magnetic drive ring line;

The lamination system further includes a slide rail, the slide rail is arranged directly above the magnetic drive stator, and the mover is slidably connected to the slide rail.

In another possible design, the stator is an annular guide rail, the movers are slidably arranged on the stator, and each mover is provided with an independent driving device.

Further, the pole piece grabbing device is a suction cup, and the suction cup is hollowed out.

Further, the feeding device is arranged on one side of the movement track of the pole piece grabbing device, and the lamination alignment table is arranged on a side away from the feeding device.

Further, the feeding device includes a first lamination material feeding device and a second lamination material feeding device; the first lamination material is the first composite material of the positive electrode material and the diaphragm material, and the second lamination The material is the second composite material of the negative electrode material and the separator material; or, the first laminate material is one of the positive and negative electrode materials, and the second laminate material is the other of the two-layer separator and the positive and negative electrode materials. a composite formed third composite material;

The feeding device is a belt-type feeding device or a lift-type feeding device.

Further, one or more of the lamination alignment table, the first lamination material feeding device and the second lamination material feeding device are arranged along the conveying direction of the mover.

Further, a detection device for detecting the position of the lamination material is also included.

The present invention also provides a method for producing laminated batteries, using the above-mentioned laminated system, comprising the following steps:

S1. The pole piece grabbing device grabs the lamination material;

S2. A pole piece grasping device slides to the top of the lamination alignment table, unloads the lamination material for lamination, and the rest of the pole piece grasping devices with the lamination material are queued up in the waiting area;

After the previous pole piece grabbing device unloads the lamination material, the latter pole piece grabbing device slides to the top of the lamination alignment table, and unloads the lamination material for lamination;

S3. Steps S1 and S2 are repeated until all laminations are completed.

Compared with the prior art, the present invention can at least achieve one of the following technical effects:

1. The lamination system provided by the present invention includes a feeding device, a conveying device and a lamination alignment table;

The conveying device includes a closed-loop stator, a plurality of movers and a plurality of pole piece grabbing devices, the number of the movers is the same as that of the pole piece grabbing devices and they are connected in one-to-one correspondence; the stator The mover is controlled to move in a closed loop, and the movement trajectory of the pole piece grabbing device is a closed loop; the feeding device and the lamination alignment table are arranged below the movement track of the pole piece grabbing device.

In the whole lamination process of the present invention, the lamination material only needs to be grasped once, which reduces the time required for lamination of each lamination material and reduces the probability of damage to the lamination material during the grasping process. The present invention is provided with a plurality of movers and each mover is provided with a pole piece grasping device. After taking the lamination material, wait at the position close to the lamination alignment table. After the previous pole piece grabbing device completes the lamination, the latter pole piece grabbing device quickly fills the position, which saves the transportation time of each lamination material. The overall time of lamination is greatly reduced, and the production efficiency is improved.

2. In the lamination system provided by the present invention, the center position of the pole piece grabbing device coincides with the center position of the mover in the vertical direction, which can reduce the vibration of the pole piece grabbing device far away from the connection part, and prevent the lamination material from being caught. , The displacement in the process of conveying and unloading ensures the lamination effect and improves the lamination efficiency.

3. In the lamination system provided by the present invention, the stator is a magnetic drive stator, and the magnetic drive stator includes a plurality of coils, and the magnetic drive stator is a planar magnetic drive platform or a magnetic drive ring line; the lamination system also includes a sliding The slide rail is arranged directly above the magnetic drive stator, and the mover is slidably connected to the slide rail.

When the coil in the magnetically driven stator is energized, the mover is magnetically driven to move along the slide rail. By controlling the power on and off of each individual coil, the movement track of the mover changes accordingly, so that each pole piece grabbing device Both can be driven and run independently, so that the two actions of transportation and lamination can be performed separately, so as to save the overall lamination time.

Another design is that the stator is an annular guide rail, the mover is slidably arranged on the stator, and each mover is provided with a separate driving device, which can also realize the grabbing of each pole piece The devices are individually driven to operate independently.

4. In the lamination system provided by the present invention, the feeding device is arranged on one side of the movement track of the pole piece grabbing device, and the lamination alignment table is arranged on the side away from the feeding device, so that the feeding device and the lamination are aligned There is a certain distance between the stations in the transport direction, and a waiting area can be set up. The pole piece grabbing device after grabbing the laminated materials waits in this waiting area. After the current stack of materials is stacked, the next stack Material is immediately available for lamination, saving overall time.

5. In the lamination system provided by the present invention, one or more lamination alignment tables and feeding devices are arranged along the moving direction of the mover. When multiple sets are provided, multiple groups of laminations can be carried out at the same time, further improving the lamination efficiency.

6. In the lamination system provided by the present invention, the pole piece grasping device is a suction cup, which avoids damage to the lamination material during the grasping process. A cushioning layer is provided on the surface of the suction cup in contact with the lamination material, and the cushioning layer is elastic, which further reduces possible damage to the lamination material, and at the same time avoids difficulty in adsorption and grasping failure when there are defects on the surface of the lamination material. The suction cup is a hollow design, which can reduce the weight of the suction cup and save energy.

7. The lamination system provided by the present invention also includes a detection device to improve the accuracy of lamination, combined with the structure of the stator and mover of the lamination system of the present invention, the separate detection time can be eliminated, and the lamination efficiency can be further improved.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and appended drawings.

Description of drawings

The drawings are for the purpose of illustrating specific embodiments only and are not to be considered as limiting the invention, and like reference numerals refer to like parts throughout the drawings.

Fig. 1 is the structural representation of embodiment 1;

Fig. 2 is the structural representation of embodiment 2;

3 is a schematic diagram of another laminated cell production method in Example 2;

Fig. 4 is a schematic structural diagram of embodiment 3.

Reference signs:

1-stator; 2-mover; 3-pole grabbing device; 4-lamination alignment table; 401-first lamination alignment table; 402-second lamination alignment table; 5-slide rail; 6-first lamination material feeding device; 7-second lamination material feeding device; 8-first waiting area; 9-second waiting area.

detailed description

The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or in a specific orientation. construction and operation, therefore, should not be construed as limiting the invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as there is no conflict with each other.

A lamination system, as shown in Figures 1-3, includes a feeding device, a conveying device, and a lamination alignment table 4; the conveying device includes a stator 1, a plurality of movers 2, and a plurality of pole piece grabbing Device 3, the number of the mover 2 is the same as the number of the pole piece grabbing device 3 and connected in one-to-one correspondence; the stator 1 controls the mover 2 to move in a closed loop, and the pole piece grabbing device 3 The trajectory of the movement is a closed loop; the feeding device and the lamination alignment table 4 are arranged below the movement trajectory of the pole piece grabbing device 3 .

During the working process, multiple movers 2 drive the pole piece grabbing device 3 on it to move around the annular stator 1. After the pole piece grabbing device 3 moves to the position of the feeding device, it grabs the lamination material, and then quickly runs to the stacking The sheet alignment station 4 unloads the grabbed laminated sheet material to the sheet alignment station 4, completes the sheet stacking, continues to run to the feeding device, and repeats the above steps. During the entire lamination process, the lamination material only needs to be grasped once, which reduces the time required for lamination of the lamination material and reduces the probability of damage to the lamination material during the grasping process.

When grabbing the lamination material and unloading the lamination material, the pole piece grabbing device 3 is in a non-transmitting state, and these two steps take a long time during the lamination process. If the previous lamination is unloaded, proceed The grabbing of the next lamination will waste more time waiting. The present invention is provided with a plurality of movers 2 and each mover 2 is provided with a pole piece grasping device 3, when the previous pole piece grasping device 3 unloads the lamination material on the lamination alignment platform 4, the subsequent After the pole piece grasping device 3 grabs the lamination material, it waits at the position close to the lamination alignment table 4. After the previous pole piece grasping device 3 completes the lamination, the latter device quickly fills in the position, saving each lamination The time of material transportation greatly reduces the overall time of lamination and improves production efficiency.

The pole piece grabbing device 3 is set on one side of the mover 2, or the pole piece grabbing device 3 is set on the bottom of the mover 2, and the center position of the pole piece grabbing device 3 coincides with the center position of the mover 2 in the vertical direction . When the center position of the pole piece grabbing device 3 coincides with the center position of the mover 2 in the vertical direction, the vibration of the pole piece grabbing device 3 away from the connection position can be reduced, and the lamination materials can be avoided during grabbing, conveying and unloading. The displacement during the process ensures the lamination effect and improves the lamination efficiency.

The stator 1 is a magnetic drive stator, the magnetic drive stator includes a plurality of coils, the magnetic drive stator is a planar magnetic drive platform or a magnetic drive ring line; the lamination system also includes a slide rail 5, and the slide rail 5 is ring-shaped, the slide rail 5 is arranged directly above the magnetic drive stator, and the mover 2 is slidably connected to the slide rail 5 . When the coil in the magnetically driven stator is energized, the mover 2 is magnetically driven to move along the slide rail. By controlling the power on and off of each individual coil, the movement track of the mover 2 changes accordingly, so that each pole piece grabs The fetching device 3 can be independently driven and run independently, so that the two actions of transportation and lamination can be performed separately, and the effect of saving the overall lamination time is achieved. Or the stator 1 is an annular guide rail, the mover 2 is slidably arranged on the stator 1, and each mover 2 is provided with a separate driving device, which can also realize the grabbing of each pole piece The individual drives of the device 3 operate independently.

The feeding device is arranged on one side of the movement track of the pole piece grabbing device 3 , and the lamination alignment table 4 is arranged on the side away from the feeding device. A waiting area is set between the feeding device and the lamination alignment platform 4 .

The feeding device includes a first lamination material feeding device 6 and a second lamination material feeding device 7, the first lamination material is the first composite material of the positive electrode material and the separator material, and the second lamination material is the negative electrode material and the second composite material of the diaphragm material; or, the first lamination material is one of the positive and negative electrode materials, and the second lamination material is formed by a composite of two layers of diaphragm and the other of the positive and negative electrode materials the third composite material.

The feeding device is a belt feeding device or a lifting feeding device. The feeding device may also include a membrane feeding device. Specifically, the belt-type feeding device includes a belt and a pulley. When the belt transmits the laminated material to the position above the pulley, the laminated material rises slightly, and the pole piece grabbing device 3 grabs the laminated material at this position; preferably, The belt-type feeding device also includes a linear motor. When the belt transfers the laminated material to the desired position, the linear motor lifts up the laminated material, which is convenient for the pole piece grabbing device 3 to grab the laminated material. At this time, it does not need to be limited. The grab position for the laminated material. The lifting type feeding device includes a linear motor and a supporting platform. The laminated materials are stacked on the supporting platform. After the top laminated material is grabbed, the linear motor lifts the next laminated material to the original position of the top laminated material.

One or more of the lamination alignment table 4 , the first lamination material feeding device 6 and the second lamination material feeding device are arranged along the conveying direction of the mover 2 .

In order to avoid damage to the laminated material during the grasping process of the laminated material, the pole piece grasping device 3 in the present invention is a suction cup, which uses suction to grasp the laminated material, preferably, on the surface where the suction cup contacts the laminated material There is a buffer layer on the top, and a plurality of through holes are opened on the buffer layer, and the through holes are connected with the air path inside the suction cup. The buffer layer is elastic, which further reduces the possible damage to the laminated material, and at the same time avoids when When there is a defect, it will cause difficulty in adsorption and failure in grasping. In order to reduce the weight of the suction cup and save energy, preferably, the suction cup is hollowed out.

The lamination system also includes an air supply device and a plurality of pneumatic rotary joints. One end of the pneumatic rotary joint is connected to the suction cup through the air pipe, and the other end is connected to the air supply device, so that each suction cup is connected to the air supply device and can be vacuumed. And break the vacuum operation, at the same time, the pneumatic rotary joint also meets the requirements for the suction cup to rotate and slide on the slide rail or the stator.

In order to improve the accuracy of stacking, the stacking system also includes a detection device, specifically a CCD detection system or an image recognition system. After the pole piece grabbing device 3 grabs the lamination material, a detection device is used in the waiting area to detect the position of the grabbed lamination material. When the position of the lamination material does not meet the requirements, the pole piece grabbing device 3 unloads the lamination Material, re-enter the next grabbing cycle. Inspection in the waiting area can eliminate the separate inspection time and further improve the lamination efficiency.

Example 1

This embodiment provides a lamination system, as shown in Figure 1, including a slide rail 5, a stator 1, multiple sets of movers 2, a lamination alignment table 4, and a first lamination material feeding device 6 and a second lamination material feeding device 7. The stator 1 is a ring-shaped magnetic drive stator, which is composed of multiple coils. The ring-shaped magnetic drive stator is installed and fixed on the bottom surface. The slide rail 5 is ring-shaped and arranged directly above the ring-shaped magnetic drive stator. The mover 2 is slidably connected to the slide rail. 5, when the coil in the stator 1 is energized, the mover 2 is magnetically driven to move along the slide rail 5, and the mover 2 and the stator 1 are in a suspended state, and there is a gap.

The first lamination material is a first composite material of the positive electrode material and the diaphragm material, and the second lamination material is the second composite material of the negative electrode material and the diaphragm material.

The first laminate material feeding device 6 and the second laminate material feeding device 7 are arranged on one side of the slide rail 5 , and the laminate alignment table 4 is arranged on the other side of the slide rail 5 . The first lamination material feeding device 6 and the second lamination material feeding device 7 are belt-type feeding devices.

Each mover 2 is provided with a pole piece grabbing device 3, the pole piece grabbing device 3 is arranged at the bottom of the mover 2, and the center position of the pole piece grabbing device 3 coincides with the center position of the mover 2 in the vertical direction , the pole piece grabbing device 3 is a sucker with a hollow design.

The method for producing laminated batteries using the above laminated system comprises the following steps:

S1. Multiple groups of movers 2 drive the suction cups to slide around the stator 1, and adjacent suction cups alternately grab the first lamination material and the second lamination material.

S2. A suction cup grabs the lamination material and quickly slides to the top of the lamination alignment table 4. The suction cup removes the suction force, and the lamination material is placed on the lamination alignment table 4 for lamination. During this process, the subsequent grabbing has Suction cups for laminated material are lined up in the waiting area. After the previous suction cup unloads the lamination material, the subsequent suction cup in the waiting area slides to the top of the lamination alignment table 4 for lamination.

S3. Steps S1 and S2 are repeated until all laminations are completed.

Example 2

This embodiment provides a lamination system, as shown in Figure 2, including a slide rail 5, an annular magnetic drive stator 1, multiple sets of magnetic drivers 2, a first lamination alignment table 401, a second lamination alignment Table 402, a first lamination material feeding device 6 and a second lamination material feeding device 7. The stator 1 is a planar magnetic drive platform, which is composed of multiple coils spliced together. The planar magnetic drive platform is installed and fixed on the bottom surface. The slide rail 5 is ring-shaped and arranged directly above the planar magnetic drive platform. The mover 2 is slidably connected to the slide rail. 5, when the coil in the planar magnetic drive platform is energized, the mover 2 is magnetically driven to move along the slide rail 5, and the mover 2 and the stator 1 are in a suspended state, and there is a gap.

The first lamination material is one of the positive and negative electrode materials, and the second lamination material is a third composite material composed of two layers of separators and the other of the positive and negative electrode materials.

The first lamination material feeding device 6 and the second lamination material feeding device 7 are arranged on one side of the slide rail 5, and the first lamination alignment table 401 and the second lamination alignment table 402 are both arranged on the slide rail 5 on the other side. The first lamination material feeding device 6 and the second lamination material feeding device 7 are belt-type feeding devices.

Each mover 2 is provided with a pole piece grabbing device 3, the pole piece grabbing device 3 is arranged at the bottom of the mover 2, and the center position of the pole piece grabbing device 3 coincides with the center position of the mover 2 in the vertical direction , the pole piece grabbing device 3 is a sucker with a hollow design.

The method for producing laminated batteries using the above laminated system comprises the following steps:

S1. Multiple groups of movers 2 drive the suction cups to slide around the stator 1. Two adjacent suction cups form a group. The suction cups in one group alternately grab the first lamination material and the second lamination material, or the suction cups in one group are both Grab the first or second lamination material.

S2. A group of suction cups grab the lamination material and slide quickly to the top of the first lamination alignment table 401 and the second lamination alignment table 402 at the same time. One suction cup corresponds to one lamination alignment table. The suction cup removes the suction force, and the lamination The material is placed on the lamination alignment table for lamination. During this process, the suction cups that subsequently grab the lamination material wait in line in the waiting area. After the front group of suction cups unloads the lamination materials, the latter group of suction cups slides to the top of the two lamination alignment tables for lamination.

S3. Steps S1 and S2 are repeated until the lamination is completed.

Another method for producing laminated batteries using the above laminated system comprises the following steps:

S1. Multiple groups of movers 2 drive the suction cups to slide around the stator 1, and adjacent suction cups alternately grab the first lamination material and the second lamination material.

S2. A first waiting area 8 is provided between the feeding device and the first lamination alignment table 401, and a second waiting area 9 is provided between the first lamination alignment table 401 and the second lamination alignment table 402. .

Adjacent even-numbered suction cups that have grasped the lamination material are laminated on the same lamination alignment platform.

In this embodiment, two adjacent suction cups that have grasped the lamination material are laminated on the same lamination alignment platform. Specifically, after the lamination system is started, the first suction cup quickly slides to the top of the second lamination alignment table 402 after grabbing the lamination material, and at the same time, the second suction cup that grabs the lamination material slides quickly Wait in line to the second waiting area 9, as shown in Figure 3. After the first suction cup unloads the lamination material, the second suction cup quickly slides to the top of the second lamination alignment platform 402 for lamination. While the first suction cup is laminating on the second lamination alignment table 402, the third suction cup grabbing the lamination material quickly slides to the first lamination alignment table 401 for lamination. The fourth, fifth... nth suction cups that grab the laminated materials are all waiting in line in the first waiting area 8. When the third suction cup completes the lamination, the fourth suction cup slides to the first stack. The sheets are stacked above the sheet alignment table 401 . When the second suction cup is stacked at the second lamination alignment station 402, there is no suction cup that grabs the lamination material waiting in the second waiting area 9, and the fourth suction cup completes the stack at the first lamination alignment station. After the sheet, the fifth and sixth suction cups that grab the lamination material in the first waiting area 8 enter the second waiting area 9, and the seventh and eighth suction cups that grab the lamination material continue to enter the second waiting area 9. Lamination is carried out on the first lamination alignment table 401 . S3. Steps S1 and S2 are repeated until the lamination is completed.

When the adjacent 4 suction cups that have grabbed the lamination material are laminated on the same lamination alignment platform, when the first suction cup is lamination above the second lamination alignment platform 402, the second- The fourth grabs the sucker that has lamination material and waits in line at the second waiting area 9 .

Example 3

This embodiment provides a lamination system, as shown in Figure 4, including a slide rail 5, an annular magnetic drive stator 1, multiple sets of magnetic drivers 2, a first lamination alignment table 401, a second lamination alignment Table 402 , 2 first lamination material feeding devices 6 and 2 second lamination material feeding devices 7 . The stator 1 is a ring-shaped magnetic drive stator, which is composed of multiple coils. The ring-shaped magnetic drive stator is installed and fixed on the bottom surface. The slide rail 5 is ring-shaped and arranged directly above the ring-shaped magnetic drive stator. The mover 2 is slidably connected to the slide rail. 5, when the coil in the stator 1 is energized, the mover 2 is magnetically driven to move along the slide rail 5, and the mover 2 and the stator 1 are in a suspended state, and there is a gap.

The first lamination material is a first composite material of the positive electrode material and the diaphragm material, and the second lamination material is the second composite material of the negative electrode material and the diaphragm material.

The first lamination material feeding device 6 and the second lamination material feeding device 7 are all arranged on one side of the slide rail 5, and the first lamination alignment platform 401 and the second lamination alignment platform 402 are all arranged on the slide rail 5. the other side of rail 5. The first lamination material feeding device 6 and the second lamination material feeding device 7 are lift-type feeding devices.

Each mover 2 is provided with a pole piece grabbing device 3 , the center position of the pole piece grabbing device 3 coincides with the center position of the mover 2 in the vertical direction, and the pole piece grabbing device 3 is a sucker with a hollow design.

The method for producing laminated batteries using the above laminated system comprises the following steps:

S1. Multiple groups of movers 2 drive the suction cups to slide around the stator 1. Two adjacent suction cups form a group. The suction cups in the same group all grab the first lamination material or the second lamination material, and the suction cups in adjacent groups grab alternately. Take the first lamination material and the second lamination material.

S2. A group of suction cups grab the lamination material and slide quickly to the top of the first lamination alignment table 401 and the second lamination alignment table 402 at the same time. One suction cup corresponds to one lamination alignment table. The suction cup removes the suction force, and the lamination The material is placed on the lamination alignment table for lamination. During this process, the suction cups that subsequently grab the lamination material wait in line in the waiting area. After the front group of suction cups unloads the lamination materials, the latter group of suction cups slides to the top of the two lamination alignment tables for lamination.

S3. Steps S1 and S2 are repeated until the lamination is completed.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention.

Claims (10)

1. The lamination system is characterized by comprising a feeding device, a conveying device and a lamination aligning table;

the conveying device comprises a stator, a plurality of rotors and a plurality of pole piece grabbing devices, wherein the number of the rotors is the same as that of the pole piece grabbing devices and the rotors are connected in a one-to-one correspondence manner;

the stator controls the rotor to move in a closed loop;

the feeding device and the lamination alignment table are arranged below the motion trail of the pole piece grabbing device.

2. The lamination system according to claim 1, wherein the pole piece gripping means are arranged on one side of the mover, or

The pole piece grabbing device is arranged at the bottom of the rotor, and the center position of the pole piece grabbing device and the center position of the rotor are overlapped in the vertical direction.

3. The lamination system according to claim 1, wherein the stator is a magnetic drive stator comprising a plurality of coils, the magnetic drive stator being a planar magnetic drive platform or a magnetic drive toroid;

the lamination system further comprises a sliding rail, the sliding rail is arranged right above the magnetic drive stator, and the rotor is connected to the sliding rail in a sliding mode.

4. The lamination system according to claim 1, wherein the stator is an annular rail, the movers are slidably disposed on the stator, and a separate drive is disposed on each of the movers.

5. The lamination system according to claim 1, wherein the pole piece capture device is a suction cup, the suction cup being openwork.

6. The lamination system according to claim 1, wherein the feeding device is disposed on one side of a motion trajectory of the pole piece gripping device, and the lamination alignment table is disposed on a side away from the feeding device.

7. The lamination system according to any one of claims 1-5, wherein the feeding device comprises a first lamination material feeding device and a second lamination material feeding device; the first lamination material is a first composite material of a positive electrode material and a diaphragm material, and the second lamination material is a second composite material of a negative electrode material and the diaphragm material; or the first lamination material is one of the anode material and the cathode material, and the second lamination material is a third composite material formed by compounding two layers of diaphragms and the other one of the anode material and the cathode material;

the feeding device is a belt type feeding device or a lifting type feeding device.

8. The lamination system according to claim 6, wherein the lamination alignment station, the first lamination material feeding device and the second lamination material feeding device are provided with 1 or more in the mover transfer direction.

9. The lamination system according to claim 8, further comprising a detection device for detecting the position of the lamination material.

10. A laminated battery production method, characterized in that the use of the lamination system according to any one of claims 1 to 9 comprises the steps of:

s1, a pole piece grabbing device grabs a laminated material;

s2, sliding one pole piece grabbing device to the position above the lamination aligning table, unloading the lamination material for lamination, and queuing the other pole piece grabbing devices grabbing the lamination material in a waiting area;

after the front pole piece gripping device unloads the lamination material, the back pole piece gripping device slides to the upper part of the lamination aligning table, and the lamination material is unloaded for lamination;

and S3, repeating the steps S1 and S2 until all the laminations are completed.

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