Slicing device and slicing method

Abstract

The present application relates to the technical field of battery cell production, and provides a slicing device and a slicing method. The slicing device is used in the double insertion process of the ALD process, and includes an aluminum boat and an air knife device. The aluminum boat includes a support rod, and the support rod is provided with a plurality of insertion slots along the central axis thereof. The bottom of the insertion slot has a partition protrusion, and the partition protrusion divides the bottom of the slot into a first slot and a second slot; the air knife device includes an air outlet mechanism and a driving mechanism, and the driving mechanism is used to drive the air outlet mechanism to move along the central axis of the support rod, and the air outlet mechanism is used to blow the two battery cells in each insertion slot to the first slot and the second slot respectively. The slicing device provided in the present application separates the two battery cells in an insertion slot into the first slot and the second slot, and effectively avoids the uneven thickness of the coating on the surface of the battery cell caused by the close fit of the two battery cells in an insertion slot during the ALD coating process, thereby effectively ensuring the production quality of the battery cell.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell production, and in particular to a slicing device and a slicing method. Background Art

[0002] The production process of battery cells generally requires an ALD (Atomic Layer Deposition) coating process. The ALD coating process includes a double-insertion process and a single-insertion process. In order to save the cost of ALD equipment, the double-insertion process is generally adopted. In the double-insertion process, two battery cells need to be inserted into one insertion slot of the bottom tooth of the aluminum boat.

[0003] In the prior art, when ALD coating is performed on battery cells using a double-insertion process, two battery cells in the same insertion slot tend to stick together, resulting in poor airflow at the location where the two battery cells stick to each other, which can easily lead to uneven coating thickness on the opposite sides of the two battery cells, affecting the production quality of the battery cells.

[0004] It can be seen that in the prior art, when the double-insertion process is used to perform ALD coating on the battery cells, the uneven thickness of the battery cell coating is a technical problem that needs to be solved urgently. Summary of the Invention

[0005] The present application provides a slicing device and a slicing method to solve the technical problem that needs to be solved urgently when the ALD coating thickness of the battery cell is uneven when the double insertion process is used to coat the battery cell in the prior art.

[0006] To solve the above problems, the present application provides a slicing device, which is used in the double insertion process of the ALD process, including:

[0007] An aluminum boat includes a supporting rod, wherein the supporting rod has a plurality of insertion slots distributed along the central axis thereof, and the bottom of the insertion slots has a dividing protrusion, and the dividing protrusion divides the bottom of the slot into a first slot and a second slot;

[0008] The air knife device includes an air outlet mechanism and a driving mechanism, wherein the driving mechanism is used to drive the air outlet mechanism to move along the central axis of the support rod, and the air outlet mechanism is used to blow the two battery cells in each insertion slot to the first slot and the second slot respectively.

[0009] In some embodiments, the width of the first slot is D1, the width of the second slot is D2, the thickness of the battery cell inserted in the insertion slot is D, D1 satisfies: D<D1<2D, and D2 satisfies: D<D2<2D.

[0010] In some embodiments, the driving mechanism comprises:

[0011] A moving assembly, used for driving the air outlet mechanism to move along the central axis of the supporting rod;

[0012] The first lifting assembly is used to drive the air outlet mechanism to move closer to the aluminum boat or away from the aluminum boat.

[0013] In some embodiments, the air outlet mechanism is distributed below the aluminum boat.

[0014] In some embodiments, the air outlet mechanism is further distributed above the aluminum boat.

[0015] In some embodiments, the air outlet mechanism includes at least two air outlets, and the two air outlets are distributed on both sides of the supporting rod.

[0016] In some embodiments, the air outlet mechanism includes four air outlets, which are symmetrically distributed with the central axis of the support rod as the symmetry axis, and the two air outlets on each side of the support rod are spaced apart.

[0017] In some embodiments, the air knife device further comprises:

[0018] The lifting mechanism includes a lifting tooth plate, and a plurality of lifting tooth grooves are distributed on the lifting tooth plate along the central axis direction of the support rod. The lifting tooth grooves include a first guide slope and a second guide slope, and the inclination directions of the first guide slope and the second guide slope are opposite. The lifting tooth grooves are used to eject the battery cell from the first slot and the second slot.

[0019] In some embodiments, the inclination angle of the first guiding slope and the second guiding slope relative to the vertical plane is 45 degrees.

[0020] The present application also provides a slicing method, which is applied to ALD coating. Before coating a cell, slicing is performed using any of the slicing devices described above. The slicing method includes:

[0021] Put the battery cells into the aluminum boat, and insert two battery cells into each of the insertion slots;

[0022] Controlling the air outlet mechanism to blow air, and controlling the driving mechanism to drive the air outlet mechanism to move along the central axis of the supporting rod in a first direction, so as to blow the battery cell in the insertion slot close to the first slot into the first slot;

[0023] The driving mechanism is controlled to drive the air outlet mechanism to move in a second direction along the central axis of the supporting rod to blow the battery sheet close to the second slot in the insertion slot into the second slot, wherein the second direction is opposite to the first direction.

[0024] The beneficial effects of the embodiments of the present application are as follows: the slicing equipment provided by the present application separates the bottom of the insertion slot on the aluminum boat support rod into a first slot and a second slot, and sets an air outlet mechanism and a driving mechanism in the wind knife device, so that the driving mechanism drives the air outlet mechanism to move along the central axis direction of the support rod to separate the two battery cells in each insertion slot into the first slot and the second slot, thereby effectively avoiding the two battery cells in one insertion slot from being closely fitted together during ALD coating, ensuring the uniform coating thickness on both sides of each battery cell surface, and ensuring the production quality of the battery cells.

[0025] By distributing the air outlet mechanism in the air knife device not only below the aluminum boat but also above the aluminum boat, the separation effect of the two battery sheets in the insertion slot can be guaranteed.

[0026] When the wind knife device also includes a lifting mechanism, when another batch of battery cells to be coated needs to be replaced after the battery cells are coated, it is generally necessary to close the two battery cells separated into the first slot and the second slot. The lifting tooth plate in the lifting mechanism rises and can eject the battery cells from the first slot and the second slot through the lifting tooth groove. Since the first guide bevel and the second guide bevel are both inclined, the lifting tooth groove can drive the battery cells to move in the horizontal direction while driving the battery cells to move upwards in the process of lifting the battery cells. This can avoid the problem of battery cells being broken due to the misalignment between the insertion slot below the aluminum boat and the top tooth groove structure above along the central axis of the support rod, thereby ensuring the production yield of battery cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without inventive efforts. Among them:

[0028] Figure 1 This is a schematic diagram of the structure of a sharding device provided in one embodiment of the present application;

[0029] Figure 2 This is a schematic structural diagram of an aluminum boat in a slicing device provided in one embodiment of the present application;

[0030] Figure 3 This is a schematic structural diagram of a support rod in a slicing device provided in one embodiment of the present application;

[0031] Figure 4 This is a schematic diagram of a partial planar structure of a support rod in a slicing device provided in an embodiment of the present application from a first perspective;

[0032] Figure 5This is a schematic diagram of a partial planar structure of a support rod in a slicing device provided in an embodiment of the present application from a second perspective;

[0033] Figure 6 This is a partial structural diagram of a slot in a slicing device provided in one embodiment of the present application;

[0034] Figure 7 This is a schematic structural diagram of an air knife device in a slicing device provided in one embodiment of the present application;

[0035] Figure 8 This is a schematic structural diagram of a lifting mechanism in a slicing device provided in one embodiment of the present application;

[0036] Figure 9 yes Figure 8 Enlarged view of point A in the middle.

[0037] Figure 10 This is a flowchart of a sharding method provided in one embodiment of the present application;

[0038] In the figure: 1000, slicing equipment; 100, aluminum boat; 10, support rod; 11, insertion slot; 111, inclined wall; 112, vertical wall; 12, partition protrusion; 131, first slot; 132, second slot; 20, frame; 30, push rod; 200, wind knife device; 40, air outlet mechanism; 41, connecting block; 42, air outlet pipe; 43, air outlet; 50, driving mechanism; 51, moving component; 52, first lifting component; 60, lifting mechanism; 61, lifting tooth plate; 62, lifting tooth groove; 621, first guide slope; 622, second guide slope; 63, second lifting component; 300, battery cell; E, first direction; F, second direction. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It will be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some, rather than all, structures related to the present application are shown in the drawings. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0040] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0041] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0042] In this application, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0043] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0044] See also Figure 1 and Figure 2 The present application provides a slicing device 1000, which can be used in the double insertion process of the ALD (Atomic Layer Deposition) process. In the ALD process, before coating the battery cells 300 on the aluminum boat 100, the slicing device 1000 is used to separate the two battery cells 300 in an insertion slot 11 to prevent the two battery cells 300 in the same insertion slot 11 from being tightly attached.

[0045] Please also refer to Figures 3 to 6 The slicing device 1000 includes an aluminum boat 100 and an air knife device 200. The aluminum boat 100 includes a support rod 10, and the support rod 10 has a plurality of insertion slots 11 distributed along its central axis. The bottom of the insertion slot 11 has a partition protrusion 12, and the partition protrusion 12 divides the bottom of the insertion slot 11 into a first slot 131 and a second slot 132. The air knife device 200 includes an air outlet mechanism 40 and a driving mechanism 50. The driving mechanism 50 is used to drive the air outlet mechanism 40 to move along the central axis of the support rod 10. The air outlet mechanism 40 is used to blow the two battery cells 300 in each insertion slot 11 into the first slot 131 and the second slot 132 respectively. The slicing device 1000 separates the two battery cells 300 in the same insertion slot 11 in the aluminum boat 100 by separating the two battery cells 300 in the same insertion slot 11 into the first slot 131 and the second slot 132 respectively.

[0046] In the slicing apparatus 1000, the aluminum boat 100 is used to load silicon wafers. After the air knife device 200 separates two silicon wafers from the same insertion slot 11 of the aluminum boat 100 into the first slot 131 and the second slot 132, the silicon wafers separated into the first slot 131 and the second slot 132 continue to be coated on the aluminum boat 100. In the embodiments of the present application, the aluminum boat 100 is explained using the placement state of the aluminum boat 100 during normal use as an example. In addition to the support rod 10, the aluminum boat 100 generally includes a frame 20 and a top rod 30. The support rod 10 is disposed at the bottom of the frame 20, and the top rod 30 is disposed at the top of the frame 20 corresponding to the support rod 10. The insertion slots 11 on the support rods 10 are also called bottom teeth. When the battery cells 300 are loaded on the aluminum boat 100, the lower edges of the battery cells 300 are inserted into the insertion slots 11. It should be noted that to ensure that the support rods 10 stably support the battery cells 300, the lower edges of the battery cells 300 are generally supported by at least two support rods 10. The insertion slots 11 are distributed along the central axis of the support rods 10, and correspondingly, the battery cells 300 are arranged along the central axis of the support rods 10.

[0047] The bottom of the insertion slot 11 has a dividing protrusion 12, which divides the bottom of the insertion slot 11 into a first slot 131 and a second slot 132. The first slot 131 and the second slot 132 are used to insert the separated battery cells 300 in the insertion slot 11. The battery cells 300 are arranged along the central axis of the support rod 10. It can be understood that the first slot 131 and the second slot 132 are also arranged along the central axis of the support rod 10. To ensure that the two battery cells 300 in the insertion slot 11 can be respectively divided into the first slot 131 and the second slot 132, in some embodiments, the width of the first slot 131 is D1, the width of the second slot 132 is D2, and the thickness of the battery cell 300 inserted in the insertion slot 11 is D. This allows D1 to satisfy the following: D<D1<2D, and D2 to satisfy the following: D<D2<2D. It should be noted that the width of the first slot 131 and the second slot 132 refers to the dimensions of the first slot 131 and the second slot 132 along the central axis of the support rod 10, and the thickness of the battery cell 300 inserted in the insertion slot 11 refers to the thickness of each battery cell 300 in the insertion slot 11. The width of the first slot 131 and the second slot 132 are both greater than the thickness of one battery cell 300 and less than the thickness of two battery cells 300. The width of the first slot 131 and the width of the second slot 132 can be equal or different. For example, in one embodiment, the thickness of the battery cell 300 is 0.125 mm, and the width of the first slot 131 and the width of the second slot 132 can both be 0.2 mm.

[0048] The separation protrusion 12 can be a rectangular protrusion formed on the bottom surface of the insertion groove 11, and the rectangular protrusion extends from the bottom surface of the insertion groove 11 in a direction perpendicular to the central axis of the support rod 10. In the direction perpendicular to the central axis of the support rod 10, the rectangular protrusion can extend to both ends of the insertion groove 11, or it can be distributed only in the middle section of the bottom of the insertion groove 11, such as Figure 5 and Figure 6 As shown. Figure 6As shown, in some embodiments, since the battery cell 300 is placed through the insertion slot 11, in order to prevent the edges of the rectangular protrusion from causing the battery cell 300 to break when the wind knife device 200 blows the battery cell 300, the two adjacent vertical surfaces of the separation protrusion 12 can be connected by an arc surface. The specific shape of the insertion slot 11 is not limited in the embodiment of the present application. For example, in some embodiments, the two opposite side walls of the insertion slot 11 may include an inclined wall 111 and a vertical wall 112, and the inclined wall 111 and the vertical wall 112 are connected to each other. The inclined wall 111 is distributed at one end of the slot near the insertion slot 11, and the vertical wall 112 is distributed at one end of the slot near the bottom of the insertion slot 11. Among them, the two opposite inclined walls 111 of the insertion slot 11 are inclined in opposite directions, so that the insertion slot 11 forms an open slot. When the opposing walls of the insertion slot 11 include an inclined wall 111 and a vertical wall 112, in some embodiments, the height of the dividing protrusion 12 can be aligned with the height of the vertical wall 112, but this is not limited to this. Furthermore, it should be noted that the bottom of the insertion slot 11 is generally relatively wide. After the dividing protrusion 12 divides the bottom into the first slot 131 and the second slot 132, the width of the top surface of the dividing protrusion 12 is generally greater than twice the thickness of the battery cell 300.

[0049] Please also refer to Figures 7 to 9 The air knife device 200 in the slicing device 1000 includes an air outlet mechanism 40 and a drive mechanism 50, which are used to blow the two battery cells 300 in the same insertion slot 11 of the aluminum boat 100 into the first slot 131 and the second slot 132, respectively. The air outlet mechanism 40 is used to blow air. When the drive mechanism 50 drives the air outlet mechanism 40 to move along the central axis of the support rod 10, the air blown by the air outlet mechanism 40 sweeps across each battery cell 300 and blows into the space between the two battery cells 300 in the same insertion slot 11. As the air outlet mechanism 40 moves, the two battery cells 300 are moved into the corresponding slots under the action of wind pressure. It should be noted that since the battery cell 300 has undergone a texturing treatment before entering the ALD process, the surface of the battery cell 300 has a certain degree of roughness. Even if the two battery cells 300 in the same insertion slot 11 are pressed against each other, the probability of the two battery cells 300 being completely pressed against each other to form a vacuum state is extremely small. Therefore, when the driving mechanism 50 drives the air outlet mechanism 40 to sweep across the end faces of each battery cell 300, the gas blown out by the air outlet mechanism 40 can separate the two pressed battery cells 300.

[0050] The driving mechanism 50 is used to drive the air outlet mechanism 40 to move along the central axis of the support rod 10. It is understood that the driving mechanism 50 includes a moving component 51 for achieving linear movement, wherein the moving component 51 can be a cylinder component, a linear guide assembly, or a screw slider assembly, but is not limited thereto. In the embodiment of the present application, the moving component 51 is described as a linear guide assembly. The moving component 51 includes a guide rail and a slider that slides along the guide rail. The air outlet mechanism 40 can be arranged on the slider. It is understood that the guide rail in the moving component 51 is arranged along the central axis of the support rod 10.

[0051] In some embodiments, the driving mechanism 50 may further include a first lifting assembly 52, which is used to drive the air outlet mechanism 40 to move closer to or away from the aluminum boat 100. It can be understood that the first lifting assembly 52 is also a linear moving assembly 51. The first lifting assembly 52 can also be a cylinder assembly, a linear guide assembly, or a screw slider assembly, but is not limited to these. In the implementation of this application, the first lifting assembly 52 is described as a cylinder assembly. The cylinder body can be set on the slider of the moving assembly 51, and the air outlet mechanism 40 is set on the slider of the cylinder.

[0052] The air outlet mechanism 40 is used to blow the two battery cells 300 in each insertion slot 11 into the first slot 131 and the second slot 132, respectively. In some implementations, the air outlet mechanism 40 can be located below the aluminum boat 100, that is, the air outlet mechanism 40 blows air toward each battery cell 300 from below. Of course, in some embodiments, the air outlet mechanism 40 is not only located below the aluminum boat 100, but also above the aluminum boat 100. That is, the air outlet mechanism 40 in the air knife device 200 blows air toward the battery cell 300 from both above and below the battery cell 300 to ensure that the two battery cells 300 in the insertion slot 11 are effectively separated. It should be noted that when the air outlet mechanism 40 is located both below and above the aluminum boat 100, the movement direction of the air outlet mechanism 40 along the support rod 10 should be synchronized. Of course, in some embodiments, the movement direction and speed of the air outlet mechanism 40 above and below the aluminum boat 100 can also be synchronized.

[0053] The specific structure of the air outlet mechanism 40 is not limited in the embodiments of the present application. For example, in some embodiments, the air outlet mechanism 40 may include a connecting block 41 and an air outlet pipe 42. One end of the air outlet pipe 42 forms an air outlet 43 for blowing air toward the battery cell 300, and the other end is connected to the connecting block 41. The connecting block 41 is also connected to an air pump, so that the gas provided by the air pump can enter the air outlet pipe 42 through the connecting block 41 and then be blown toward the battery cell 300 from the air outlet 43 of the air outlet pipe 42. It should be noted that each air outlet pipe 42 may form one air outlet 43 or multiple air outlets 43. In the embodiments of the present application, each air outlet pipe 42 is described as an example of a single air outlet 43. In some embodiments, each air outlet mechanism 40 includes at least two air outlets 43, and the two air outlets 43 are distributed on both sides of the support rod 10. In this way, the battery cells 300 at both ends of each insertion slot 11 can be subjected to wind pressure, and the battery cells 300 are evenly stressed, making it easier for the battery cells 300 to be blown into the corresponding slots. The even stress on the battery cells 300 can reduce the risk of the battery cells 300 being broken. Figure 7 As shown, in some embodiments, the air outlet mechanism 40 may include four air outlets 43. When the air outlet mechanism 40 includes four air outlets 43, the four air outlets 43 are symmetrically distributed with the central axis of the support rod 10 as the axis of symmetry, ensuring that the battery cells 300 at both ends of the insertion slot 11 are evenly stressed. Of course, to prevent a battery cell 300 from being affected by the wind pressure of two air outlets 43 at the same time along the central axis of the support rod 10, the two air outlets 43 on each side of the support rod 10 are spaced apart.

[0054] like Figure 1 and Figure 8As shown, in some embodiments, the wind knife device 200 also includes a lifting mechanism 60. The lifting mechanism 60 includes a lifting tooth plate 61, and a plurality of lifting tooth grooves 62 are distributed on the lifting tooth plate 61 along the central axis direction of the support rod 10. The lifting tooth groove 62 includes a first guide bevel 621 and a second guide bevel 622, and the first guide bevel 621 and the second guide bevel 622 are inclined in opposite directions. The lifting tooth groove 62 is used to eject the battery cell 300 from the first slot 131 and the second slot 132. It should be noted that in order to ensure that the first guide bevel 621 and the second guide bevel 622 can guide the battery cell 300 when the lifting tooth groove 62 lifts the battery cell 300, it can be understood that the first guide bevel 621 and the second guide bevel 622 are inclined in a direction away from each other from the bottom of the lifting tooth groove 62 to the opening of the lifting tooth groove 62. For example, in some embodiments, the first guide slope 621 and the second guide slope 622 are both inclined at an angle of 45 degrees relative to the vertical plane. When the battery cells 300 are coated and another batch of battery cells 300 to be coated is needed, the two battery cells 300 separated into the first slot 131 and the second slot 132 generally need to be closed. The lifting tooth plate 61 in the lifting mechanism 60 rises and can push the battery cell 300 out of the first slot 131 and the second slot 132 through the lifting tooth groove 62. Since the first guide slope 621 and the second guide slope 622 are both inclined, when the lifting tooth groove 62 pushes the battery cell 300 upward, the first guide slope 621 and the second guide slope 622 can drive the battery cell 300 to move upward and in the horizontal direction at the same time, which can avoid the problem of the battery cell 300 being broken due to the misalignment between the insertion slot 11 below the aluminum boat 100 and the top tooth groove structure above along the central axis of the support rod 10, thereby ensuring the production yield of the battery cell 300.

[0055] The lifting tooth plate 61 can be disposed between the two supporting rods 10 corresponding to the battery cell 300. To ensure that the lifting tooth plate 61 stably lifts the battery cell 300, the lifting tooth plate 61 can be distributed with two rows of lifting tooth grooves 62 arranged along the central axis of the supporting rod 10. To achieve the lifting and lowering of the lifting tooth plate 61, it is understood that the lifting mechanism 60 also includes a second lifting assembly 63, which can also be a cylinder assembly, a linear guide assembly, or a screw slider assembly, but is not limited thereto.

[0056] The slicing device 1000 provided in the above embodiment of the present application separates the bottom of the insertion slot 11 on the support rod 10 of the aluminum boat 100 into a first slot 131 and a second slot 132, and sets an air outlet mechanism 40 and a driving mechanism 50 in the wind knife device 200, so that the driving mechanism 50 drives the air outlet mechanism 40 to move along the central axis direction of the support rod 10 to separate the two battery cells 300 in each insertion slot 11 into the first slot 131 and the second slot 132, thereby effectively avoiding the two battery cells 300 in one insertion slot 11 from being closely fitted together during ALD coating, ensuring the uniform coating thickness on both sides of the surface of each battery cell 300, and ensuring the production quality of the battery cell 300.

[0057] like Figure 10 As shown, in some embodiments, the present application further provides a slicing method, which is applied to ALD coating. Before coating the cell 300, the slicing device 1000 in the above embodiment can be used for slicing. The slicing method includes the following steps:

[0058] Step S100 , placing the battery cells 300 into the aluminum boat 100 , with two battery cells 300 being placed in each insertion slot 11 ;

[0059] During the ALD process, the two battery cells 300 placed in each insertion slot 11 may be close together. After placement, both battery cells 300 may rest on the upper surface of the partition protrusion 12. Alternatively, one battery cell 300 may rest on the upper surface of the partition protrusion 12 while the other battery cell 300 rests in the first slot 131 or the second slot 132. Alternatively, both battery cells 300 may rest in the first slot 131 and the second slot 132, respectively. In practice, the two battery cells 300 in each insertion slot 11 generally rest on the upper surface of the partition protrusion 12.

[0060] In step S200 , the air outlet mechanism 40 is controlled to blow air, and the driving mechanism 50 is controlled to drive the air outlet mechanism 40 to move along the central axis of the support rod 10 in the first direction E to blow the battery cell 300 near the first slot 131 in the insertion slot 11 into the first slot 131 .

[0061] In step S300 , the driving mechanism 50 is controlled to drive the air outlet mechanism 40 to move in the second direction F along the central axis of the support rod 10 to blow the battery cell 300 near the second slot 132 in the insertion slot 11 into the second slot 132 , wherein the first direction E is opposite to the second direction F.

[0062] In the embodiment of the present application, the air outlet mechanism 40 is disposed below the aluminum boat 100 as an example. When the driving mechanism 50 drives the air outlet mechanism 40 to move along the central axis of the tow bar in the first direction E or the second direction F, the air outlet 43 of the air outlet mechanism 40 sweeps across the battery cells 300 in each insertion slot 11 from the bottom of the battery cells 300. The first slot 131 and the second slot 132 in each insertion slot 11 are distributed along the central axis of the support bar 10. In the direction along the central axis of the support bar 10, the direction from the second slot 132 to the first slot 131 is referred to as the first direction E, and the direction from the first slot 131 to the second slot 132 is referred to as the second direction F. The air outlet mechanism 40 moves in the first direction E to blow the battery cell 300 near the first slot 131 in the insertion slot 11 into the first slot 131, and the air outlet mechanism 40 moves in the second direction F to blow the battery cell 300 near the second slot 132 in the insertion slot 11 into the second slot 132 in the same principle. In the embodiment of the present application, the air outlet mechanism 40 moves in the first direction E to blow the battery cell 300 near the first slot 131 in the insertion slot 11 into the first slot 131 as an example for explanation. During the movement of the air outlet mechanism 40 in the first direction E, the gas is first blown into between the two battery cells 300 that are close to each other to separate the two battery cells 300. As the air outlet mechanism 40 moves in the first direction E, the gas will push the battery cell 300 close to the first slot 131 to move toward the first slot 131, so that the battery cell 300 close to the first slot 131 can be blown into the first slot 131. At the same time, as the air outlet mechanism 40 moves in the first direction E, there will be a certain amount of airflow between the battery cell 300 close to the first slot 131 and the side wall of the insertion slot 11 on the side of the first slot 131. According to Bernoulli's principle, the battery cell 300 close to the first slot 131 will also move toward the first slot 131 under the action of negative pressure, effectively ensuring that the battery cell 300 close to the first slot 131 can be blown into the first slot 131.

[0063] The slicing method provided in the present application is applied to ALD coating. Before coating the battery cell 300, the slicing method provided in the present application is used to separate the two battery cells 300 in the same insertion slot 11 in the aluminum boat 100 into the first slot 131 and the second slot 132 respectively. This effectively avoids the problem of two battery cells 300 in one insertion slot 11 being closely attached together, resulting in uneven coating and the generation of crescent marks during coating, thereby ensuring the production quality of the battery cell 300.

[0064] The above description is only an implementation method of the present application and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A sharding device, characterized in that: In the double insertion process used in the ALD process, the slicing equipment includes: An aluminum boat includes a supporting rod, wherein the supporting rod has a plurality of insertion slots distributed along the central axis thereof, and the bottom of the insertion slots has a dividing protrusion, and the dividing protrusion divides the bottom of the slot into a first slot and a second slot; The air knife device includes an air outlet mechanism and a driving mechanism, wherein the driving mechanism is used to drive the air outlet mechanism to move along the central axis of the support rod, and the air outlet mechanism is used to blow the two battery cells in each insertion slot into the first slot and the second slot respectively; The air knife device also includes: The lifting mechanism includes a lifting tooth plate, and a plurality of lifting tooth grooves are distributed on the lifting tooth plate along the central axis direction of the support rod. The lifting tooth grooves include a first guide slope and a second guide slope, and the inclination directions of the first guide slope and the second guide slope are opposite. The lifting tooth grooves are used to eject the battery cell from the first slot and the second slot.

2. The slicing device according to claim 1, characterized in that: The width of the first slot is D1, the width of the second slot is D2, the thickness of the battery cell inserted in the insertion slot is D, D1 satisfies: D<D1<2D, and D2 satisfies: D<D2<2D.

3. The slicing device according to claim 1, wherein: The driving mechanism comprises: A moving assembly, used for driving the air outlet mechanism to move along the central axis of the supporting rod; The first lifting assembly is used to drive the air outlet mechanism to move closer to the aluminum boat or away from the aluminum boat.

4. The slicing device according to claim 1, wherein: The air outlet mechanism is distributed below the aluminum boat.

5. The slicing device according to claim 4, characterized in that: The air outlet mechanism is also distributed above the aluminum boat.

6. The slicing device according to claim 4 or 5, characterized in that: The air outlet mechanism comprises at least two air outlets, and the two air outlets are distributed on both sides of the supporting rod.

7. The slicing device according to claim 6, characterized in that: The air outlet mechanism includes four air outlets, which are symmetrically distributed with the central axis of the supporting rod as the symmetry axis, and the two air outlets on each side of the supporting rod are arranged at intervals.

8. The slicing device according to claim 1, wherein: The inclination angle of the first guiding slope and the second guiding slope relative to the vertical plane is 45 degrees.

9. A sharding method, characterized in that: Applied to ALD coating, before coating the cell, slicing is performed using the slicing device according to any one of claims 1 to 8, the slicing method comprising: Put the battery cells into the aluminum boat, and insert two battery cells into each of the insertion slots; Controlling the air outlet mechanism to blow air, and controlling the driving mechanism to drive the air outlet mechanism to move along the central axis of the supporting rod in a first direction, so as to blow the battery cell in the insertion slot close to the first slot into the first slot; The driving mechanism is controlled to drive the air outlet mechanism to move in a second direction along the central axis of the supporting rod to blow the battery sheet close to the second slot in the insertion slot into the second slot, wherein the second direction is opposite to the first direction.

Images