Cartridge and battery manufacturing apparatus

Abstract

The application relates to a material box and a battery manufacturing device, the material box comprising a box body, a bearing piece and a pressing piece. The box body is internally hollow, two through openings are arranged on the side surface of the box body and are mutually spaced, and two sections of the battery sheet are exposed through the two through openings respectively; the bearing piece is arranged in the box body and is used for bearing the battery sheet; and the pressing piece can press the battery sheet on the bearing piece.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic technology, and in particular to a material box and battery manufacturing equipment. Background Technology

[0002] With the photovoltaic industry's increasing demand for cost reduction and efficiency improvement in solar cells, increasing module power has become a key research and development direction. In recent years, the size of silicon wafers has continued to increase, leading to an increase in cell current and consequently, increased resistance loss. To reduce losses, the industry has widely adopted cell slicing technology (such as half-cell, three-cell, and four-cell slicing), which reduces the current proportionally with the number of slices.

[0003] Currently, atomic layer deposition (ALD) passivation repair technology is widely used for repairing the cut surfaces of high-efficiency batteries such as PERC and TOPCon due to its excellent passivation effect. However, in actual processes, to avoid coating (wrapping coating) on ​​non-cut surfaces, tooling fixtures are required to precisely expose the cut surfaces.

[0004] However, traditional tooling fixtures have drawbacks such as poor compatibility, uneven coating, and low operating efficiency.

[0005] The above information disclosed in the background art of this application is only for understanding the background of the concept of this application, and does not indicate or imply that it includes information of the prior art. Utility Model Content

[0006] Therefore, it is necessary to provide a material box and battery manufacturing equipment to address the above problems.

[0007] A material box comprising:

[0008] The box body is hollow inside, and two through openings are provided on opposite sides of the box body at intervals.

[0009] A support member, disposed within the housing and used to support battery cells, wherein two cross-sections of the battery cells are exposed through two through-holes, respectively; and

[0010] An extruder that can press the battery cell onto the carrier.

[0011] The aforementioned material box achieves at least the following beneficial effects: Multiple layers of solar cells can be stacked, and the extruder can press the cells firmly against the support structure by its own weight, while simultaneously increasing the friction between the cells, effectively reducing the risk of cell misalignment during coating or annealing. The two through-holes precisely correspond to the two non-cut surfaces of the solar cells, ensuring that the reactive gas completely covers the cut surfaces when flowing along the length of the box, improving the passivation effect. Other parts of the box shield the non-cut surfaces, completely avoiding plating around the cells and reducing material waste. The extruder's own weight minimizes the gaps between the solar cells, preventing reactive gas from penetrating into the non-cut surface areas, further reducing the risk of plating around the cells. During the annealing process, the heating plate can directly heat the cut surfaces through the through-holes, avoiding heat blockage by the box body, resulting in more uniform annealing of the alumina film layer.

[0012] In some embodiments, the housing includes a base plate and two upright plates disposed on the base plate. The two upright plates are spaced apart and enclose the base plate to form two through-holes. The two upright plates are used to abut against the non-cut surfaces of the solar cells. The housing forms a stable U-shaped structure through the base plate and the two spaced upright plates. The space between the two upright plates forms the through-holes, ensuring that the reactive gas flows directionally through the cut surfaces of the solar cells. At the same time, the upright plates directly abut against the non-cut surfaces of the solar cells, forming a physical isolation barrier, completely blocking the risk of gas circling the plating process, and assisting the extruder in achieving precise positioning and clamping of the solar cells, further improving the coating uniformity and process stability.

[0013] In some embodiments, the carrier is detachably connected to the base plate. Either the carrier or the base plate has a locking recess, and the other has a locking protrusion. When the carrier is connected to the base plate, the locking protrusion extends into the locking recess to restrict the lateral displacement of the carrier. The carrier and base plate are detachably connected through the engagement of the locking recess and the locking protrusion, facilitating quick disassembly and maintenance while effectively limiting the lateral displacement of the carrier, ensuring precise positioning of the solar cells during coating or annealing. The modular design balances ease of operation with structural stability, preventing displacement due to vibration or gas flow, and allows for flexible replacement of the carrier to meet different process requirements, improving equipment versatility and process consistency.

[0014] In some embodiments, either the extruder or the upright plate is provided with a limiting groove, and the other is provided with a limiting protrusion. When the extruder moves up and down within the material box along its height direction under external force, the limiting protrusion can slidably extend into the limiting groove to restrict the movement direction of the extruder. The cooperation between the limiting groove and the limiting protrusion ensures stable movement of the extruder along its height direction during lifting and lowering, preventing skewing or shaking, thereby ensuring accurate positioning and uniform force distribution of the battery cells within the material box. This guiding structure simplifies the operation process, improves the stability of coating or annealing processes, reduces equipment wear caused by friction or misalignment, extends service life, and enhances process consistency.

[0015] In some embodiments, the box body further includes two reinforcing ribs connected between the two upright plates. Each reinforcing rib, together with the two upright plates and the bottom plate, forms a through opening. By providing two reinforcing ribs connected between the upright plates and forming a through opening together with the upright plates and the bottom plate, the overall structural strength of the box is enhanced, preventing the upright plates from deforming under high temperature or stress conditions.

[0016] In some embodiments, each of the uprights has a telescopic hole, through which a telescopic rod passes to push the non-section of the stacked solar cells to flush with another upright. By using telescopic holes in the uprights in conjunction with the telescopic rod, the non-section of the stacked solar cells can be precisely pushed to flush with another upright, ensuring stable alignment of the solar cells within the material box and preventing uneven coating or annealing processes due to misalignment. This structure simplifies the positioning operation of the solar cells, improves production efficiency, reduces errors caused by manual intervention, and enhances process consistency and product yield.

[0017] In some embodiments, the top two sides of the material box are provided with limiting grooves, and the bottom two sides of the material box are provided with limiting protrusions. When one material box is stacked on top of another, the limiting protrusion of the upper material box can extend into the limiting groove of the lower material box. By providing limiting grooves on the top and limiting protrusions on the bottom of the material box, precise positioning can be achieved through the interlocking of the grooves and protrusions when multiple material boxes are stacked, preventing displacement or tilting during the stacking process. This structure enhances the stability of the material box stacking, avoids misalignment of the battery cells due to vibration or movement, and simplifies the loading and unloading operation process, ensuring safe transmission.

[0018] In some embodiments, the height of the limiting boss is greater than the sum of the chamfer length of the limiting boss and the chamfer length of the limiting groove; and / or, the half-width of the material box is greater than the half-width of the limiting boss.

[0019] This application also provides a battery manufacturing apparatus, which includes a clamping device and a material box as described in any of the above embodiments. The clamping device includes a fixed base and a clamping assembly. The fixed base is used to support the material box, and the clamping assembly is disposed on the fixed base and is used to clamp the material box from the two through-hole sides of the material box and restrict the movement of the battery cells.

[0020] The aforementioned battery manufacturing equipment includes the material box described in the above embodiments. Therefore, the battery manufacturing equipment also has at least the following beneficial effects: Multiple layers of battery cells can be stacked within the material box; the extruder presses the battery cells against the carrier by its own weight, simultaneously increasing the friction between the battery cells and effectively reducing the risk of battery cell displacement during coating or annealing. Two through-holes precisely correspond to the two non-cut surfaces of the battery cells, ensuring that the reactant gas completely covers the cut surfaces when flowing along the length of the material box, improving the passivation effect. Other parts of the box body shield the non-cut surfaces, completely avoiding the problem of plating around the surface and reducing material waste. The extruder's own weight minimizes the gap between battery cells, preventing reactant gas from penetrating into the non-cut surface area, further reducing the risk of plating around the surface. In the annealing process, the heating plate can directly heat the cut surfaces through the through-holes, avoiding heat being blocked by the box body, resulting in more uniform annealing of the alumina film layer. The battery manufacturing equipment provided in this application achieves high-precision positioning and stable transmission of battery cells through the coordinated design of the clamping device and the material box. The clamping components apply force through the openings on both sides of the material box to form a mechanical limit, effectively preventing the displacement of the battery cells during the process.

[0021] In some embodiments, two clamping assemblies are provided. Each clamping assembly includes a slider and a limiting rod disposed on the slider. The slider is slidably mounted on the fixed base via a slide rail. The limiting rods of the two clamping assemblies clamp the material box from the two through-hole sides of the material box and restrict the movement of the battery cells. The symmetrical arrangement of the two clamping assemblies drives the slider to move synchronously via the slide rail, so that the limiting rods clamp the material box precisely from both sides of the through-holes, forming a balanced clamping force distribution, effectively avoiding the tilting of the material box caused by unilateral pressure. At the same time, the sliding structure of the slide rail ensures that the clamping process is stable and controllable. Combined with the nesting of the limiting boss and groove of the material box itself, the battery cells are double-locked during dynamic handling or process processing, which not only improves the reliability of clamping and positioning, but also reduces the risk of battery cell displacement or damage caused by mechanical vibration.

[0022] In some embodiments, the mounting base has a positioning protrusion, and the bottom of the material box has a positioning recess. When the material box is placed on the mounting base, the positioning protrusion extends into the positioning recess. The positioning protrusion on the mounting base and the positioning recess on the bottom of the material box cooperate to form a mechanical positioning structure, which can quickly and accurately align and install the material box on the mounting base, avoiding positional deviations during manual placement. At the same time, this convex-concave mating structure provides additional anti-displacement support when the clamping assembly applies clamping force, enhancing the stability of the material box during processing or handling, effectively preventing the material box from sliding due to external vibration or inertia, thereby ensuring the positional accuracy and safety of the battery cells during the processing. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology 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.

[0024] Figure 1 A schematic diagram of a battery manufacturing apparatus provided in one embodiment of the present invention.

[0025] Figure 2 This is another structural schematic diagram of a battery manufacturing apparatus provided in one embodiment of the present invention.

[0026] Figure 3 This is a schematic diagram of the structure of a material box provided in one embodiment of the present invention.

[0027] Figure 4 This is a schematic diagram of a carrier component provided in one embodiment of the present invention.

[0028] Figure 5 This is a schematic diagram of a structure provided in one embodiment of the present invention when multiple material boxes are stacked.

[0029] Figure 6 This is a schematic diagram of the structure of the limiting boss and the limiting groove in one embodiment of the present invention.

[0030] Figure label:

[0031] 1. Battery manufacturing equipment; 10. Material box; 20. Clamping device; 30. Battery cell; 100. Box body; 110. Base plate; 111. Locking protrusion; 112. Positioning recess; 120. Vertical plate; 121. Telescopic hole; 122. Limiting groove; 130. Feed port; 140. Through port; 150. Reinforcing rib; 160. Limiting boss; 170. Limiting groove; 200. Bearing component; 210. Locking recess; 300. Extrusion component; 310. Limiting protrusion; 400. Fixing base; 410. Positioning protrusion; 500. Clamping assembly; 510. Slider; 520. Limiting rod; 520. Slide rail. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model 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 utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] Please see Figure 1 , Figure 2 and Figure 3 In some embodiments, this application provides a material box 10, which includes a box body 100, a support member 200, and a pressing member 300. The box body 100 is hollow, with a discharge port 130 at the top and two spaced-apart through-holes 140 on its side. The battery cell 30 can enter the box body 100 through either the through-holes 140 or the discharge port 130, with two cross-sections of the battery cell 30 exposed through the two through-holes 140 respectively. The support member 200 is disposed within the box body 100 and serves to support the battery cell 30. The pressing member 300 can press the battery cell 30 firmly onto the support member 200.

[0034] The aforementioned material box 10 achieves at least the following beneficial effects: Multiple layers of battery cells 30 can be stacked; the extruder 300 presses the battery cells 30 against the support 200 by its own weight, simultaneously increasing the friction between the battery cells 30 and effectively reducing the risk of displacement of the battery cells 30 during coating or annealing. The two through-holes 140 precisely correspond to the two non-cut surfaces of the battery cells 30, ensuring that the reactant gas completely covers the cut surfaces when flowing along the length of the material box 10, improving the passivation effect. Other parts of the box body 100 shield the non-cut surfaces, completely avoiding the problem of plating around the surface and reducing material waste. The extruder 300's own weight minimizes the gaps between the battery cells 30, preventing reactant gas from penetrating into the non-cut surface area, further reducing the risk of plating around the surface. During the annealing process, the heating plate can directly heat the cut surfaces through the through-holes 140, preventing heat from being blocked by the box body 100, resulting in more uniform annealing of the alumina film layer.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the housing 100 includes a base plate 110 and two upright plates 120 disposed on the base plate 110. The two upright plates 120 are arranged at intervals and enclose the base plate 110 to form two through openings 140. The two upright plates 120 are used to abut against the non-cut surfaces of the battery cell 30. The housing 100 forms a stable U-shaped structure through the base plate 110 and the two spaced upright plates 120. The through openings 140 are formed between the two upright plates 120, ensuring that the reactive gas flows directionally through the cut surfaces of the battery cell 30. At the same time, the upright plates 120 directly abut against the non-cut surfaces of the battery cell 30, forming a physical isolation barrier, completely blocking the risk of gas circling the coating, and assisting the extruder 300 in achieving precise positioning and pressing of the battery cell 30, further improving the coating uniformity and process stability.

[0036] like Figure 3 and Figure 4 As shown, in some embodiments, the carrier 200 is detachably connected to the base plate 110. Either the carrier 200 or the base plate 110 has a locking recess 210, and the other has a locking protrusion 111. When the carrier 200 is connected to the base plate 110, the locking protrusion 111 extends into the locking recess 210 to restrict the lateral displacement of the carrier 200. The carrier 200 and the base plate 110 are detachably connected through the cooperation of the locking recess 210 and the locking protrusion 111, which facilitates quick disassembly and maintenance while effectively restricting the lateral displacement of the carrier 200, ensuring accurate positioning of the battery cell 30 during coating or annealing. The modular design balances ease of operation with structural stability, avoiding displacement caused by vibration or gas flow, and allows for flexible replacement of the carrier 200 to meet different process requirements, improving equipment versatility and process consistency.

[0037] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, either the extruder 300 or the upright plate 120 is provided with a limiting groove 122, and the other of the extruder 300 and the upright plate 120 is provided with a limiting protrusion 310. When the extruder 300 moves up and down within the material box 10 along the height direction under the action of external force, the limiting protrusion 310 can slide into the limiting groove 122 to limit the movement direction of the extruder 300. The extruder 300 and the upright plate 120, through the cooperation of the limiting groove 122 and the limiting protrusion 310, ensure that the extruder 300 moves stably along the height direction during the lifting and lowering process, avoiding skewness or shaking, thereby ensuring the accurate positioning and uniform force of the battery cell 30 within the material box 10. This guiding structure simplifies the operation process, improves the stability of the coating or annealing process, reduces equipment wear caused by friction or misalignment, extends service life, and improves process consistency.

[0038] like Figure 1 , Figure 2 and Figure 3 As shown, in some embodiments, the box body 100 further includes two reinforcing ribs 150, which are connected between the two upright plates 120. Each reinforcing rib 150, together with the two upright plates 120 and the bottom plate 110, forms a through opening 140. By providing two reinforcing ribs 150 connected between the upright plates 120 and forming the through opening 140 together with the upright plates 120 and the bottom plate 110, the overall structural strength of the box 10 is enhanced, preventing the upright plates 120 from deforming under high temperature or stress conditions.

[0039] like Figure 1 and Figure 2 As shown, in some embodiments, each of the upright plates 120 is provided with a telescopic hole 121. The telescopic hole 121 on any one of the upright plates 120 is used for a telescopic rod to pass through and push the non-section of the stacked battery cells 30 to flush with another upright plate 120. By providing telescopic holes 121 on the upright plates 120 and using telescopic rods, the non-section of the stacked battery cells 30 can be accurately pushed to flush with another upright plate 120, ensuring stable alignment of the battery cells 30 in the material box 10 and avoiding uneven coating or annealing processes due to misalignment. This structure simplifies the positioning operation of the battery cells 30, improves production efficiency, reduces errors caused by manual intervention, and enhances process consistency and product yield.

[0040] like Figure 1 and Figure 5As shown, in some embodiments, the material box 10 has limiting grooves 170 on both sides of its top and limiting protrusions 160 on both sides of its bottom. Specifically, the top of the two opposing sides of the two upright plates 120 has limiting grooves 170, and the bottom of the two opposing sides of the two upright plates 120 has limiting protrusions 160. When one material box 10 is stacked on top of another material box 10, the limiting protrusions 160 of the upper material box 10 can extend into the limiting grooves 170 of the lower material box 10. By providing limiting grooves 170 on the top and limiting protrusions 160 on the bottom of the material box 10, multiple material boxes 10 can be precisely positioned through the interlocking of the grooves and protrusions, preventing displacement or tilting during stacking. This structure enhances the stability of the stacked material boxes 10, avoids misalignment of the battery cells 30 due to vibration or movement, simplifies the loading and unloading process, and ensures safe transmission.

[0041] like Figure 6 As shown, in some embodiments, the height of the limiting boss 160 is greater than the sum of the chamfer length of the limiting boss 160 and the chamfer length of the limiting groove 170, the half-width of the material box 10 is greater than the half-width of the limiting boss 160, and the width direction of the upright plate 120 can be considered as the width direction of the material box 10. Specifically, the rotation radius of the limiting boss 160 is greater than the radius of the limiting groove 170, where the rotation radius² of the limiting boss 160 = (half-width of the material box 10 + half-width of the limiting boss 160)² + (height of the limiting boss 160 - chamfer length of the limiting boss 160 × tan chamfer angle of the limiting boss 160)², and the radius² of the limiting boss 160 = (half-width of the material box 10 + half-width of the limiting boss 160 + single-sided gap)² + (chamfer length of the limiting groove 170 × tan chamfer angle of the limiting groove 170)². When the half-width of the material box 10 is 45.5mm, the half-width of the boss is 13mm, the height of the boss is 15mm, the chamfer length of the boss is 1mm, the chamfer length of the groove is 2mm, and the chamfer angles of the boss and the groove are both 60°, the maximum skew angle of a single material box 10 is 5.48°. When three layers of material boxes 10 are stacked, the maximum skew angle of the material box 10 is 16.44°. Tests show that when the material box 10 is skewed by 20° with its lower left or lower right edge as the axis of rotation, the aforementioned anti-deviation measures for the battery cells 30 will prevent the battery cells 30 from sliding out of the material box 10.

[0042] This application also provides a battery manufacturing apparatus 1, which includes a clamping device 20 and a material box 10 as described in any of the above embodiments. The clamping device 20 includes a fixing base 400 and a clamping assembly 500. The fixing base 400 is used to support the material box 10, and the clamping assembly 500 is disposed on the fixing base 400 and is used to clamp the material box 10 from the side where the two through holes 140 of the material box 10 are located and to restrict the movement of the battery cells 30.

[0043] The battery manufacturing equipment 1 described above includes the material box 10 as described in the above embodiments. Therefore, the battery manufacturing equipment 1 also has at least the following beneficial effects: Multiple layers of battery cells 30 can be stacked within the material box 10. The extruder 300 presses the battery cells 30 against the support member 200 by its own weight, while simultaneously increasing the friction between the battery cells 30, effectively reducing the risk of displacement of the battery cells 30 during coating or annealing. The two through-holes 140 precisely correspond to the two non-cut surfaces of the battery cells 30, ensuring that when the reactive gas flows along the length of the material box 10, it completely covers the cut surfaces, improving the passivation effect. Other parts of the box body 100 shield the non-cut surfaces, completely avoiding the problem of plating around the surface and reducing material waste. The extruder 300's own weight minimizes the gap between the battery cells 30, preventing reactive gas from penetrating into the non-cut surface area, further reducing the risk of plating around the surface. In the annealing process, the heating plate can directly heat the cut surfaces through the through-holes 140, avoiding heat being blocked by the box body 100, making the alumina film layer annealed more uniformly. The battery manufacturing equipment 1 provided in this application achieves high-precision positioning and stable transmission of the battery cell 30 through the coordinated design of the clamping device 20 and the material box 10. The clamping assembly 500 applies force to clamp the battery cell 30 through the through-holes 140 on both sides of the material box 10 to form a mechanical limit, effectively preventing the displacement of the battery cell 30 during the process.

[0044] In some embodiments, the number of clamping assemblies 500 is set to two, each clamping assembly 500 including a slider 510 and a limiting rod 520 disposed on the slider 510. The slider 510 is slidably disposed on the fixed base 400 via a slide rail 520. The limiting rods 520 of the two clamping assemblies 500 respectively clamp the material box 10 from the two through holes 140 of the material box 10 and restrict the movement of the battery cell 30. The symmetrical arrangement of the two clamping components 500 drives the slider 510 to move synchronously through the slide rail 520, so that the limiting rod 520 can be precisely clamped from the through openings 140 on both sides of the material box 10, forming a balanced clamping force distribution, effectively avoiding the tilting of the material box 10 caused by unilateral pressure; at the same time, the sliding structure of the slide rail 520 ensures that the clamping process is stable and controllable. With the limiting boss 160 of the material box 10 itself and the groove nesting, the battery cell 30 is double locked in dynamic handling or process processing, which not only improves the reliability of clamping and positioning, but also reduces the risk of displacement or damage to the battery cell 30 caused by mechanical vibration.

[0045] In some embodiments, the fixing base 400 is provided with a positioning protrusion 410, and the bottom of the material box 10 is provided with a positioning recess 112. When the material box 10 is placed on the fixing base 400, the positioning protrusion 410 extends into the positioning recess 112. The positioning protrusion 410 on the fixing base 400 and the positioning recess 112 at the bottom of the material box 10 cooperate with each other to form a mechanical positioning structure, which can quickly and accurately realize the alignment and installation of the material box 10 on the fixing base 400, avoiding positional deviations during manual placement. At the same time, this convex-concave cooperation structure provides additional anti-displacement support when the clamping assembly 500 applies clamping force, enhancing the stability of the material box 10 during processing or handling, effectively preventing the material box 10 from sliding due to external vibration or inertia, thereby ensuring the positional accuracy and safety of the battery cell 30 during the process.

[0046] 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.

[0047] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0048] In the description of this utility model, it should be understood that the terms "axial", "radial", "circumferential", "length", "width", "thickness", "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0049] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0050] In this utility model, unless otherwise explicitly 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.

[0051] In this utility model, unless otherwise explicitly 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] It should be noted that when an element is referred to as being "attached to," "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.

[0053] In the description of this specification, references to terms such as "an embodiment," "another implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative descriptions of the above terms do not necessarily refer to the same embodiment or example. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

Claims

1. A material box, characterized in that, include: The box body is hollow inside, and two through openings are provided on opposite sides of the box body at intervals. A support member, disposed within the housing and used to support battery cells, wherein two cross-sections of the battery cells are exposed through two through-holes, respectively; and An extruder that can press the battery cell onto the carrier.

2. The material box according to claim 1, characterized in that, The box body includes a bottom plate and two upright plates disposed on the bottom plate. The two upright plates are arranged at intervals and enclose the bottom plate to form two through openings. The two upright plates are used to abut the non-section of the battery cell.

3. The material box according to claim 2, characterized in that, The support member is detachably connected to the base plate. Either the support member or the base plate is provided with a locking recess, and the other support member or the base plate is provided with a locking protrusion. When the support member is connected to the base plate, the locking protrusion extends into the locking recess to restrict the lateral displacement of the support member.

4. The material box according to claim 2, characterized in that, Either the extruder or the upright plate is provided with a limiting groove, and the other of the extruder or the upright plate is provided with a limiting protrusion. When the extruder moves up and down in the material box along the height direction of the material box, the limiting protrusion can slide into the limiting groove to restrict the movement direction of the extruder.

5. The material box according to claim 2, characterized in that, The box body also includes two reinforcing ribs, which are connected between the two upright plates. Each reinforcing rib, together with the two upright plates and the bottom plate, forms a through opening.

6. The material box according to claim 2, characterized in that, Each of the upright plates has a telescopic hole, and the telescopic hole on any one of the upright plates is used for a telescopic rod to pass through to push the non-section of the stacked battery cells to be flush with and abut against another upright plate.

7. The material box according to any one of claims 1 to 6, characterized in that, The top two sides of the material box are provided with limiting grooves, and the bottom two sides of the material box are provided with limiting protrusions. When one material box is stacked on top of another material box, the limiting protrusion of the upper material box can extend into the limiting groove of the lower material box.

8. The material box according to claim 7, characterized in that, The height of the limiting boss is greater than the sum of the chamfer length of the limiting boss and the chamfer length of the limiting groove; and / or, the half-width of the material box is greater than the half-width of the limiting boss.

9. A battery manufacturing apparatus, characterized in that, The device includes a clamping device and a material box as described in any one of claims 1 to 8. The clamping device includes a fixed base and a clamping assembly. The fixed base is used to support the material box, and the clamping assembly is disposed on the fixed base and is used to clamp the material box from the two through-hole sides of the material box and restrict the movement of the battery cells.

10. The battery manufacturing equipment according to claim 9, characterized in that, The number of clamping components is set to two. Each clamping component includes a slider and a limiting rod provided on the slider. The slider is slidably disposed on the fixed base via a slide rail. The limiting rods of the two clamping components clamp the material box from the two through-hole sides of the material box and restrict the movement of the battery cell. And / or, the fixing base is provided with a positioning protrusion, the bottom of the material box is provided with a positioning recess, and when the material box is placed on the fixing base, the positioning protrusion extends into the positioning recess.

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