Battery core manufacturing apparatus

Abstract

The present application relates to a battery core manufacturing apparatus, comprising a sheet manufacturing mechanism, stacking mechanisms, and electrode sheet transfer mechanisms. The sheet manufacturing mechanism comprises a first conveyor line and a second conveyor line arranged in parallel. The first conveyor line and the second conveyor line are capable of conveying first electrode sheets and second electrode sheets to stacking mechanisms at any stacking station, and the electrode sheet transfer mechanisms are capable of transferring the conveyed first electrode sheets and second electrode sheets to the corresponding stacking mechanisms, so that the stacking mechanisms may stacking the first electrode sheets and the second electrode sheets into battery cores. The electrode sheet transfer mechanism corresponding to each stacking station can work independently and transfer the first electrode sheets and the second electrode sheets to the stacking mechanisms in the corresponding station. Therefore, the stacking mechanisms at the plurality of stacking stations can perform battery core stacking at the same time, so that the stacking efficiency matches the sheet manufacturing efficiency, thereby significantly improving the battery core manufacturing efficiency.

Description

Battery cell manufacturing equipment Technical Field

[0001] This application relates to the field of lithium battery equipment technology, and in particular to a cell manufacturing apparatus. Background Technology

[0002] With the rapid development of the new energy industry, the demand for lithium-ion batteries and other battery cells has increased dramatically, leading to increasingly higher requirements for cell manufacturing efficiency and quality. Currently, integrated cutting and stacking machines are commonly used to manufacture battery cells, with a wafer fabrication mechanism producing electrodes in real time, and a stacking mechanism using the produced electrodes to stack the cells. The stacking process is one of the key steps, and its efficiency directly affects the overall production efficiency. Traditional integrated cutting and stacking machines typically use a single stacking station and electrode handling mechanism, resulting in a slow stacking speed that is difficult to match with high-speed wafer fabrication processes, becoming a bottleneck restricting the efficiency of battery cell production.

[0003] Application content

[0004] Therefore, it is necessary to provide a battery cell manufacturing apparatus that can improve the efficiency of battery cell production in order to address the above problems.

[0005] A battery cell manufacturing apparatus has multiple spaced-apart stacking stations, the battery cell manufacturing apparatus comprising:

[0006] The wafer fabrication mechanism includes a first conveyor line and a second conveyor line arranged in parallel. The first conveyor line and the second conveyor line are respectively used to carry and transport a first electrode sheet and a second electrode sheet. The first conveyor line and the second conveyor line can transport the first electrode sheet and the second electrode sheet to any of the said lamination stations.

[0007] The lamination mechanism is provided in each of the lamination stations, and at least one of the lamination mechanisms is provided therein;

[0008] An electrode transport mechanism is provided for each of the stacking stations. The electrode transport mechanism is used to transport the first electrode and the second electrode conveyed by the first conveyor line and the second conveyor line to the stacking mechanism. The stacking mechanism can stack the first electrode and the second electrode into a battery cell.

[0009] In one embodiment, the sheet-making mechanism further includes a first slicing mechanism and a second slicing mechanism. The first slicing mechanism can sequentially cut multiple first electrode groups and place the first electrode groups sequentially on the first conveyor line. Each first electrode group includes two first electrodes facing opposite directions. The second slicing mechanism can sequentially cut multiple second electrode groups and place the second electrode groups sequentially on the second conveyor line. Each second electrode group includes two second electrodes facing opposite directions.

[0010] In one embodiment, each of the stacking mechanisms includes a first buffer platform and a second buffer platform, and the electrode transport mechanism is capable of transporting the first electrode group and the second electrode group transported by the first conveyor line and the second conveyor line to the first buffer platform and the second buffer platform, respectively.

[0011] In one embodiment, the first buffer platform is rotatable and causes the first electrode it carries to change orientation, and the second buffer platform is rotatable and causes the second electrode it carries to change orientation.

[0012] In one embodiment, each of the stacking mechanisms further includes a stacking stage, a stacking robot, a first alignment stage, and a second alignment stage. The electrode transport mechanism is capable of transporting the first electrode and the second electrode on the first buffer stage and the second buffer stage to the first alignment stage and the second alignment stage, respectively. The stacking robot is capable of stacking the first electrode and the second electrode on the first alignment stage and the second alignment stage onto the stacking stage.

[0013] In one embodiment, the first correction stage and the second correction stage are respectively located on opposite sides of the stacking stage along the electrode conveying direction, the first buffer stage is located between the first correction stage and the electrode forming mechanism, and the second buffer stage is located between the second correction stage and the electrode forming mechanism.

[0014] In one embodiment, the stacking mechanism is distributed on at least one side of the first conveyor line facing away from the second conveyor line and on the side of the second conveyor line facing away from the first conveyor line.

[0015] In one embodiment, each stacking station is provided with two stacking mechanisms, which are located on opposite sides of the first conveyor line and the second conveyor line, respectively.

[0016] In one embodiment, each of the electrode handling mechanisms includes a first handling robot and a second handling robot, which are located on opposite sides of the stacking mechanism along the electrode conveying direction, and are used to handle the first electrode and the second electrode to the stacking mechanism, respectively.

[0017] In one embodiment, both the first and second handling robots include a transfer component and a gripper disposed on the transfer component. The transfer component spans the first and second conveyor lines, and the gripper is capable of passing over the first and second conveyor lines under the drive of the transfer component.

[0018] In one embodiment, each stacking station is provided with two stacking mechanisms. The first handling robot and the second handling robot each include two sets of grippers. One set of grippers is used to transport the first electrode or the second electrode to one of the stacking mechanisms in the stacking station, and the other set of grippers is used to transport the first electrode or the second electrode to another stacking mechanism.

[0019] In one embodiment, a feeding mechanism is also included, which includes a feeding robot and a feeding conveyor line located between the first conveyor line and the second conveyor line. The feeding robot is capable of transporting the battery cells on the stacking mechanism to the feeding conveyor line.

[0020] In one embodiment, a hot pressing mechanism is also included, and the feeding conveyor line is capable of conveying the battery cells into the hot pressing mechanism.

[0021] In the aforementioned cell fabrication apparatus, the first and second conveyor lines transport the first and second electrodes fabricated by the wafer fabrication unit to the stacking mechanism at any stacking station. The electrode transport mechanism then transports the transported first and second electrodes to the stacking mechanism, which can then stack the first and second electrodes to form a cell. Each stacking station's corresponding electrode transport mechanism can operate independently, transporting the first and second electrodes to the stacking mechanism within its designated station. Therefore, multiple stacking stations can simultaneously perform cell stacking, thereby matching the stacking efficiency with the wafer fabrication efficiency and significantly improving the cell fabrication efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 is a schematic diagram of the structure of a cell manufacturing apparatus in one embodiment of this application.

[0024] Figure 2 is a schematic diagram of the stacking mechanism in the cell manufacturing apparatus shown in Figure 1. Detailed Implementation

[0025] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0026] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0029] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] Please refer to Figure 1. This application provides a battery cell fabrication apparatus 10. The battery cell fabrication apparatus 10 includes a wafer fabrication mechanism 100, a wafer stacking mechanism 200, and an electrode transport mechanism 300.

[0032] The electrode fabrication mechanism 100 includes a first conveyor line 110 and a second conveyor line 120, which are arranged side by side and are respectively used to carry and convey a first electrode 21 and a second electrode 31. The first electrode 21 is either a negative electrode or a positive electrode, and the second electrode 31 is either a negative electrode or a positive electrode. The first conveyor line 110 and the second conveyor line 120 can be vacuum belt conveyors or other forms, and can convey the electrode along a straight path or a curved path. Specifically, in this embodiment, the first conveyor line 110 and the second conveyor line 120 can convey the electrode along a first direction, i.e., the horizontal direction shown in the figure, and the first conveyor line 110 and the second conveyor line 120 are arranged at intervals along a second direction perpendicular to the first direction, i.e., the vertical direction shown in the figure.

[0033] The cell manufacturing apparatus 10 has multiple stacking stations spaced apart. Specifically, the multiple stacking stations are spaced apart along the conveying directions of the first conveyor line 110 and the second conveyor line 120, i.e., in the first direction. Each stacking station is equipped with at least one stacking mechanism 200, and the first conveyor line 110 and the second conveyor line 120 can convey the first electrode 21 and the second electrode 31 to any stacking station. Moreover, an electrode handling mechanism 300 is provided for each stacking station.

[0034] The electrode transport mechanism 300 is used to transport the first electrode 21 and the second electrode 31 conveyed by the first transport line 110 and the second transport line 120 to the stacking mechanism 200, which can stack the first electrode 21 and the second electrode 31 to form a battery cell (not shown). Specifically, the stacking mechanism 200 can alternately stack the first electrode 21 and the second electrode 31 and place a separator between the first electrode 21 and the second electrode 31 to produce a battery cell. The stacking mechanism 200 can perform the stacking in the same manner as in related technologies, so it will not be described in detail here.

[0035] Taking Figure 1 as an example, the cell fabrication apparatus 10 has three stacking stations, which are spaced apart along a first direction. Three electrode transport mechanisms 300 are respectively disposed at the three stacking stations, and each stacking station has two stacking mechanisms 200, for a total of six stacking mechanisms 200. Each electrode transport mechanism 300 can operate independently, transporting the first electrode 21 and the second electrode 31 to the two stacking mechanisms 200 in the corresponding station. Therefore, the stacking mechanisms 200 in multiple stacking stations can stack cells simultaneously, thereby matching the stacking efficiency with the wafer fabrication efficiency and significantly improving the cell fabrication efficiency.

[0036] Furthermore, in this embodiment, the stacking mechanisms 200 are distributed on at least one side of the first conveyor line 110 facing away from the second conveyor line 120 and on the other side of the second conveyor line 120 facing away from the first conveyor line 110. More specifically, each stacking station is provided with two stacking mechanisms 200, which are respectively located on the opposite sides of the first conveyor line 110 and the second conveyor line 120. That is, the stacking mechanisms 200 are distributed on the outer side of at least one of the first conveyor line 110 and the second conveyor line 120. Specifically, the outer side of the first conveyor line 110 refers to the side of the first conveyor line 110 facing away from the second conveyor line 120, and the outer side of the second conveyor line 120 refers to the side of the second conveyor line 120 facing away from the first conveyor line 110.

[0037] As can be seen, the stacking mechanism 200 is located outside the film-making mechanism 100 and is not restricted by the first conveyor line 110 and the second conveyor line 120. Therefore, when performing maintenance on the stacking mechanism 200, it is not necessary to pass through the first conveyor line 110 or the second conveyor line 120, thus providing ample operating space and facilitating maintenance operations on the stacking mechanism 200.

[0038] In addition, in this embodiment, each electrode handling mechanism 300 includes a first handling robot 310 and a second handling robot 320. The first handling robot 310 and the second handling robot 320 are located on opposite sides of the stacking mechanism 200 along the electrode conveying direction, and are used to handle the first electrode 21 and the second electrode 31 to the stacking mechanism 200, respectively.

[0039] The first handling robot 310 can continuously pick up the first electrode 21 from the first conveyor line 110 and transport it to the stacking mechanism 200, while the second handling robot 320 can continuously pick up the second electrode 31 from the second conveyor line 120 and transport it to the stacking mechanism 200. Therefore, the transfer efficiency of the first electrode 21 and the second electrode 31 is accelerated, which can further improve the stacking efficiency. Moreover, the first handling robot 310 and the second handling robot 320 transport the electrode to the stacking mechanism 200 from both sides respectively. The two operate independently without interfering with each other, and the running trajectory of the first handling robot 310 and the second handling robot 320 is simplified, which also helps to ensure the smooth operation of the cell manufacturing device 10 for a long time.

[0040] Specifically, the first handling robot 310 and the second handling robot 320 are located on opposite sides of the stacking mechanism 200 in the first direction, and both can adopt the same structure. For example, both the first handling robot 310 and the second handling robot 320 can include a transfer component (not shown) and a gripper (not shown) disposed on the transfer component. The gripper can be a chuck or a suction cup. The transfer component spans across the first conveyor line 110 and the second conveyor line 120 along the second direction. The gripper can pass over the first conveyor line 110 and the second conveyor line 120 under the drive of the transfer component to facilitate gripping the first electrode 21 or the second electrode 31.

[0041] In this embodiment, since each stacking station is equipped with two stacking mechanisms 200, both the first handling robot 310 and the second handling robot 320 are equipped with two sets of grippers, each set of grippers may include one or more grippers. One set of grippers is responsible for transporting the first or second electrode sheet to one stacking mechanism 200, while the other set of grippers is responsible for transporting the first or second electrode sheet to another stacking mechanism 200. The two sets of grippers do not interfere with each other, thus further improving the handling efficiency of the first handling robot 310 and the second handling robot 320.

[0042] In this embodiment, the sheet-making mechanism 100 further includes a first slicing mechanism 130 and a second slicing mechanism 140. The first slicing mechanism 130 can sequentially cut multiple first electrode groups 20 and place the first electrode groups 20 sequentially on the first conveyor line 110. Each first electrode group 20 includes two first electrodes 21 facing opposite directions. The second slicing mechanism 140 can sequentially cut multiple second electrode groups 30 and place the second electrode groups 30 sequentially on the second conveyor line 120. Each second electrode group 30 includes two second electrodes 31 facing opposite directions.

[0043] The first slicing mechanism 130 and the second slicing mechanism 140 can produce two first electrode sheets 21 and two second electrode sheets 31 respectively in one cutting operation, thus improving the sheet production efficiency. Within the first electrode sheet group 20, the tabs of the first electrode sheets 21 are located on one edge of the first electrode sheet 21 facing away from the other side, meaning the two first electrode sheets 21 face opposite directions. The same applies to the second electrode sheet group 30. Multiple first electrode sheet groups 20 are arranged sequentially on the first conveyor line 110 and conveyed to the stacking mechanism 200, while multiple second electrode sheet groups 30 are arranged sequentially on the second conveyor line and conveyed to the stacking mechanism 200.

[0044] Please refer to Figure 2. In this embodiment, each stacking mechanism 200 includes a first buffer platform 210 and a second buffer platform 220. The electrode transport mechanism 300 can transport the first electrode group 20 and the second electrode group 30 transported by the first conveyor line 110 and the second conveyor line 120 to the first buffer platform 210 and the second buffer platform 220, respectively.

[0045] Before being stacked into a battery cell, the electrode handling mechanism 300 first transports the first electrode 21 and the second electrode 31 to the first buffer stage 210 and the second buffer stage 220, respectively. Specifically, the first electrode 21 can be transported to the first buffer stage 210 by the first handling robot 310, and the second electrode 31 can be transported to the second buffer stage 220 by the second handling robot 320. The first handling robot 310 can pick up one first electrode group 20 (i.e., two first electrodes 21) at a time, and the second handling robot 320 can pick up one second electrode group 30 (i.e., two second electrodes 31) at a time. Due to the increased wafer fabrication efficiency, the stacking efficiency of a single stacking mechanism 200 may not match the overall wafer fabrication efficiency. Therefore, the first electrode 21 and the second electrode 31 can be buffered on the first buffer stage 210 and the second buffer stage 220. Moreover, by setting up multiple stacking mechanisms 200, the overall stacking efficiency of the multiple stacking mechanisms 200 can be matched with the overall wafer fabrication efficiency.

[0046] Furthermore, in this embodiment, the first buffer platform 210 can rotate and cause the first electrode 21 it carries to change its orientation, and the second buffer platform 220 can rotate and cause the second electrode 31 it carries to change its orientation.

[0047] The first buffer stage 210 and the second buffer stage 220 can adopt the same structure, and a driving component such as a rotary motor (not shown) can be installed below them to drive the first buffer stage 210 and the second buffer stage 220 to rotate around an axis perpendicular to their bearing surface. Typically, during stacking, one first electrode 21 or second electrode 31 is removed from the first buffer stage 210 or the second buffer stage 220 at a time. After removing one first electrode 21 from the first electrode group 20 buffered in the first buffer stage 210 and using it for stacking, the first buffer stage 210 can be rotated 180 degrees to rotate another first electrode 21 to the same orientation as the previous first electrode. In this way, the orientation of the first electrode 21 removed from the first buffer stage 210 is consistent each time, thereby reducing the difficulty of grasping and ensuring smooth electrode retrieval. The working principle of the second buffer stage 220 is similar, so it will not be described further.

[0048] It should be noted that in other embodiments, the first buffer stage 210 and the second buffer stage 220 may not need to be rotated. During stacking, two first electrodes 21 from the first electrode group 20 or two second electrodes 31 from a second electrode group 30 are simultaneously grasped and stacked. In this way, two cells can be obtained in one stacking operation, and the two cells are oriented in opposite directions.

[0049] Furthermore, in this embodiment, each stacking mechanism 200 also includes a stacking stage 230, a stacking robot 240, a first alignment stage 250, and a second alignment stage 260. The electrode transport mechanism 300 can transport the first electrode 21 and the second electrode 31 on the first buffer stage 210 and the second buffer stage 220 to the first alignment stage 250 and the second alignment stage 260, respectively. The stacking robot 240 can stack the first electrode 21 and the second electrode 31 on the first alignment stage 250 and the second alignment stage 260 onto the stacking stage 230.

[0050] The electrode handling mechanism 300 can first transport the first electrode 21 and the second electrode 31 on the first buffer stage 210 and the second buffer stage 220 to the first correction stage 250 and the second correction stage 260 respectively for correction. After the correction is completed, the stacking robot 240 will alternately place the first electrode 21 and the second electrode 31 on the first correction stage 250 and the second correction stage 260 on the stacking stage 230 to stack them into a battery cell.

[0051] Specifically, the first handling robot 310 transports the first electrode 21 from the first buffer platform 210 to the first alignment platform 250, and the second handling robot 320 transports the second electrode 31 from the second buffer platform 220 to the second alignment platform 260. Based on this, each set of grippers for the first handling robot 310 includes two grippers: one gripper for transporting the first electrode 21 from the first conveyor line 110 to the first buffer platform 210, and the other gripper for transporting the first electrode 21 from the first buffer platform 210 to the first alignment platform 250. The two grippers do not interfere with each other, resulting in high efficiency. Similarly, each set of grippers for the second handling robot 320 also includes two grippers: one gripper for transporting the second electrode 31 from the second conveyor line 120 to the second buffer platform 220, and the other gripper for transporting the first electrode 31 from the second buffer platform 220 to the second alignment platform 260.

[0052] In this embodiment, the first correction stage 250 and the second correction stage 260 are located on opposite sides of the stacking stage 230 along the electrode conveying direction, the first buffer stage 210 is located between the first correction stage 250 and the electrode making mechanism 100, and the second buffer stage 220 is located between the second correction stage 260 and the electrode making mechanism 100.

[0053] Specifically, the first correction stage 250 and the second correction stage 260 are located on opposite sides of the stacking stage 230 in the first direction, the first buffer stage 210 and the first correction stage 250 are located on the same side of the stacking stage 230, and the second buffer stage 220 and the second correction stage 260 are located on the same side of the stacking stage 230. This arrangement ensures that the operating paths of the first electrode 21 and the second electrode 31 do not intersect or overlap, thus preventing mutual interference between the first electrode 21 and the second electrode 31 during operation and ensuring the orderly operation of the cell fabrication apparatus 10.

[0054] Please refer to Figure 1 again. In this embodiment, the cell manufacturing apparatus 10 further includes a feeding mechanism 400. The feeding mechanism 400 includes a feeding robot 410 and a feeding conveyor line 420 located between the first conveyor line 110 and the second conveyor line 120. The feeding robot 410 can transport the cells on the stacking mechanism 200 to the feeding conveyor line 420.

[0055] The unloading conveyor line 420 can adopt the same form as the first conveyor line 110 and the second conveyor line 120, such as a belt conveyor line. After the wafers are stacked, the unloading robot 410 can pick up the battery cells from the stacking table 230 and transport them to the unloading conveyor line 420, which can then carry the battery cells to the next process. Moreover, since the unloading conveyor line 420 is located between the first conveyor line 110 and the second conveyor line 120, the battery cells on the stacking mechanisms 200 on both sides of the wafer making mechanism 100 are relatively close to the unloading conveyor line 420, which facilitates the timely transfer of the battery cells to the unloading conveyor line 420.

[0056] In this embodiment, the unloading conveyor line 420 passes through multiple stacking stations in sequence. The unloading robot 410 is set up one-to-one with the stacking station, and each unloading robot 410 is used to transport the battery cells on the stacking mechanism 200 in the corresponding stacking station to the unloading conveyor line 420.

[0057] Furthermore, in this embodiment, the battery cell manufacturing apparatus 10 also includes a hot pressing mechanism 500, and the unloading conveyor line 420 can transport the battery cell into the hot pressing mechanism 500. The hot pressing mechanism 500 can hot press the battery cell to further compress it.

[0058] The aforementioned cell fabrication apparatus 10, with its first conveyor line 110 and second conveyor line 120, can transport the first electrode 21 and second electrode 31 fabricated by the wafer fabrication unit 100 to the stacking unit 200 at any stacking station. The electrode transporting unit 300 can then transport the transported first electrode 21 and second electrode 31 to the stacking unit 200, whereby the stacking unit 200 can stack the first electrode 21 and second electrode 31 to form a cell. Since the electrode transporting unit 300 corresponding to each stacking station can operate independently and transport the first electrode 21 and second electrode 31 to the stacking unit 200 within its corresponding station, the stacking units 200 in multiple stacking stations can simultaneously perform cell stacking, thereby matching the stacking efficiency with the wafer fabrication efficiency and significantly improving the cell fabrication efficiency.

[0059] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0060] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A battery cell manufacturing apparatus, characterized in that, The cell fabrication apparatus includes multiple spaced-apart stacking stations. The wafer fabrication mechanism includes a first conveyor line and a second conveyor line arranged in parallel. The first conveyor line and the second conveyor line are respectively used to carry and transport a first electrode sheet and a second electrode sheet. The first conveyor line and the second conveyor line can transport the first electrode sheet and the second electrode sheet to any of the said lamination stations. The lamination mechanism is provided in each of the lamination stations, and at least one of the lamination mechanisms is provided therein; An electrode transport mechanism is provided for each of the stacking stations. The electrode transport mechanism is used to transport the first electrode and the second electrode conveyed by the first conveyor line and the second conveyor line to the stacking mechanism. The stacking mechanism can stack the first electrode and the second electrode into a battery cell.

2. The cell manufacturing apparatus according to claim 1, characterized in that, The film-making mechanism further includes a first slicing mechanism and a second slicing mechanism. The first slicing mechanism can sequentially cut multiple first electrode groups and place the first electrode groups sequentially on the first conveyor line. Each first electrode group includes two first electrodes facing opposite directions. The second slicing mechanism can sequentially cut multiple second electrode groups and place the second electrode groups sequentially on the second conveyor line. Each second electrode group includes two second electrodes facing opposite directions.

3. The cell manufacturing apparatus according to claim 2, characterized in that, Each of the stacking mechanisms includes a first buffer platform and a second buffer platform, and the electrode transport mechanism is capable of transporting the first electrode group and the second electrode group transported by the first conveyor line and the second conveyor line to the first buffer platform and the second buffer platform, respectively.

4. The cell manufacturing apparatus according to claim 3, characterized in that, The first buffer platform can rotate and cause the first electrode it carries to change its orientation, and the second buffer platform can rotate and cause the second electrode it carries to change its orientation.

5. The cell manufacturing apparatus according to claim 3, characterized in that, Each of the stacking mechanisms further includes a stacking table, a stacking robot, a first alignment table, and a second alignment table. The electrode transport mechanism can transport the first electrode and the second electrode on the first buffer table and the second buffer table to the first alignment table and the second alignment table, respectively. The stacking robot can stack the first electrode and the second electrode on the first alignment table and the second alignment table onto the stacking table.

6. The cell manufacturing apparatus according to claim 5, characterized in that, The first correction stage and the second correction stage are respectively located on opposite sides of the stacking stage along the electrode conveying direction. The first buffer stage is located between the first correction stage and the electrode forming mechanism, and the second buffer stage is located between the second correction stage and the electrode forming mechanism.

7. The cell manufacturing apparatus according to claim 1, characterized in that, The stacking mechanism is distributed on at least one side of the first conveyor line away from the second conveyor line and on the side of the second conveyor line away from the first conveyor line.

8. The cell manufacturing apparatus according to claim 7, characterized in that, Each stacking station is equipped with two stacking mechanisms, which are located on opposite sides of the first and second conveyor lines, respectively.

9. The cell manufacturing apparatus according to claim 1, characterized in that, Each of the electrode handling mechanisms includes a first handling robot and a second handling robot, which are located on opposite sides of the stacking mechanism along the electrode conveying direction, and are used to handle the first electrode and the second electrode to the stacking mechanism, respectively.

10. The cell manufacturing apparatus according to claim 9, characterized in that, Both the first and second handling robots include a transfer component and a gripper disposed on the transfer component. The transfer component spans the first and second conveyor lines, and the gripper is able to pass over the first and second conveyor lines under the drive of the transfer component.

11. The cell manufacturing apparatus according to claim 10, characterized in that, Each stacking station is equipped with two stacking mechanisms. The first and second handling robots each include two sets of grippers. One set of grippers is used to transport the first or second electrode to one of the stacking mechanisms in the stacking station, and the other set of grippers is used to transport the first or second electrode to another stacking mechanism.

12. The cell manufacturing apparatus according to claim 1, characterized in that, It also includes a feeding mechanism, which includes a feeding robot and a feeding conveyor line located between the first conveyor line and the second conveyor line. The feeding robot can transport the battery cells on the stacking mechanism to the feeding conveyor line.

13. The cell manufacturing apparatus according to claim 12, characterized in that, It also includes a hot pressing mechanism, and the feeding conveyor line can transport the battery cells into the hot pressing mechanism.

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