An electrode sheet conveying correction device, a method for using the same, and a battery cell forming apparatus
By designing an electrode transfer and correction device, and utilizing the cooperation of a holding mechanism and a blocking component, the problem of electrode flying out during transfer was solved, thereby improving the stability and correction success rate of the electrode during the transfer and correction process.
Patent Information
- Application Number
- CN202111436578.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-29
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2041-11-29
AI Technical Summary
In existing technologies, electrode sheets are prone to flying out of the calibration transmission area during transmission, resulting in instability in the electrode transmission and calibration process, which affects the electrode attachment operation of subsequent equipment.
An electrode transfer and correction device is designed, including a transfer mechanism, a correction mechanism, and a holding mechanism. The position of the electrode during the transfer process is controlled by switching between the holding position and the lifting position of the holding mechanism. Combined with the blocking component, the electrode is limited to ensure that the electrode moves stably within the correction area.
This improves the stability of the electrode during the transmission and calibration process, increases the calibration success rate, prevents the electrode from flying out of the calibration area, and improves production efficiency.
Smart Images
Figure CN116177160B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery technology, and in particular to an electrode transfer correction device and its usage method, and a cell forming equipment. Background Technology
[0002] Existing technology uses a horizontal transfer zone for electrode transfer and a correction transfer zone for electrode correction to facilitate electrode attachment in subsequent equipment. However, in the current production process, when the tip of the electrode comes into contact with the correction transfer zone, it moves rapidly along with the inclined rollers within the zone. This makes it very easy for the electrode to fly out of the correction transfer zone before reaching the stop.
[0003] Therefore, there is an urgent need to provide an electrode transmission and correction device that can stably transmit and correct electrode sheets. Summary of the Invention
[0004] This application provides an electrode transfer and correction device and its usage method, as well as a cell forming equipment, to improve the stability of the electrode during the transfer and correction process.
[0005] To achieve the above objectives, this application provides the following technical solution:
[0006] According to a first aspect of this application, an electrode transfer and correction apparatus is provided, comprising a transfer mechanism, a correction mechanism, and a holding mechanism. The transfer mechanism has a first transfer surface for transferring the electrode from the transfer mechanism to the correction mechanism. The correction mechanism has a second transfer surface for transferring the electrode transferred from the first transfer surface. The holding mechanism has a holding position and a lifting position. When the holding mechanism is in the holding position, a holding and transfer space for the electrode is formed between the holding mechanism and the first transfer surface. When the holding mechanism is in the lifting position, the electrode is removed from the holding and transfer space.
[0007] When using the electrode transfer and correction device provided in this application, the electrode is transferred from the first transfer surface to the second transfer surface. Since the electrode portion is in the holding and transfer space, the electrode only moves forward relative to the second transfer surface. When the holding mechanism switches from the holding position to the lifting position, the electrode moves and is corrected on the second transfer surface. It is worth noting that the electrode transfer and correction device provided in this application can switch the holding mechanism from the holding position to the lifting position when the electrode reaches a preset position on the second transfer surface. This allows control over where the electrode begins to move and be corrected on the second transfer surface, preventing the electrode from flying out of the correction area, improving the stability of the electrode during the transfer and correction process, and thus increasing the correction success rate.
[0008] In one embodiment of this application, the pressing mechanism includes at least two pressing members that are rotatable about their own axis, the at least two pressing members being spaced apart along a first direction, the first direction being perpendicular to the transmission path of the electrode.
[0009] In one embodiment of this application, the position of the holding member relative to the first transmission surface is adjustable along the traveling direction of the electrode.
[0010] In one embodiment of this application, the correction mechanism further includes a blocking member disposed on the side of the second transmission surface away from the first transmission surface to limit at least one corner of the electrode; at least a portion of the blocking member can be extended or retracted relative to the second transmission surface along a direction perpendicular to the second transmission surface.
[0011] In one embodiment of this application, the blocking member includes a first block and a second block, the first block being disposed along a first edge of the second transmission surface; the second block being disposed along a second edge of the second transmission surface, the first edge being the side edge of the second transmission surface away from the first transmission surface, and the second edge being perpendicular to the first edge.
[0012] In one embodiment of this application, the first stop has a lifting position and a lowering position. When the first stop is in the lifting position, the first stop cooperates with the second stop to limit at least one corner of the electrode sheet. When the first stop is in the lowering position, the top of the first stop cooperates with the second stop to form a clearance opening for the electrode sheet to be moved out.
[0013] In one embodiment of this application, the first stop includes at least two sub-stops, which are spaced apart along the first edge.
[0014] According to a second aspect of this application, a method of using an electrode transmission correction device is provided, comprising:
[0015] The first transmission surface of the transmission mechanism is the transmission electrode.
[0016] The pressing and transmission space formed by the pressing mechanism and the first transmission surface presses and transmits the electrode sheet;
[0017] Once the electrode reaches the preset position, the pressing mechanism switches from the pressing position to the lifting position to release the electrode.
[0018] After being released, the electrode undergoes transmission calibration on the second transmission surface of the calibration mechanism.
[0019] In one embodiment of this application, the method for switching the pressing mechanism from the pressing position to the lifting position and releasing the electrode when the electrode reaches a preset position includes:
[0020] When the distance between the front end of the electrode and the blocking member located at the first edge of the second transmission surface reaches a preset value, the pressing mechanism switches from the pressing position to the lifting position to release the electrode.
[0021] According to a third aspect of this application, a cell forming apparatus is provided, including any of the electrode transfer and correction devices provided by the above-described technical solutions. Attached Figure Description
[0022] To better understand this disclosure, reference may be made to the embodiments shown in the following figures. Components in the figures are not necessarily to scale, and related elements may be omitted to emphasize and clearly illustrate the technical features of this disclosure. Additionally, related elements or components may have different arrangements as known in the art. Furthermore, in the figures, the same reference numerals denote the same or similar components in various figures. Wherein:
[0023] Figure 1 A side view of the electrode transmission correction device provided in an embodiment of this application;
[0024] Figure 2 This is a schematic diagram from another angle of the electrode transmission correction device provided in the embodiments of this application;
[0025] Figure 3 This is a second schematic diagram of the electrode transmission correction device provided in the embodiments of this application;
[0026] Figure 4 for Figure 3 The first sectional view at point AA;
[0027] Figure 5 This is a third schematic diagram of the electrode transmission correction device provided in the embodiments of this application;
[0028] Figure 6 for Figure 3 The second sectional view at point AA;
[0029] Figure 7 for Figure 3 The third sectional view at point AA;
[0030] Figure 8 for Figure 3 The fourth sectional view at point AA;
[0031] Figure 9 This is a fourth schematic diagram of the electrode transmission correction device provided in the embodiments of this application;
[0032] Figure 10 for Figure 9 Sectional view at point AA;
[0033] Figure 11 A flowchart illustrating the use of the electrode transmission correction device provided in this application embodiment.
[0034] The annotations in the attached figures are explained as follows:
[0035] 01-Electrode; 1-Transmission mechanism; 11-First roller; 2-Correction mechanism; 21-Second roller; 22-Blocking component; 221-First stop block; 2211-Sub-stop block; 222-Second stop block; 3-Pressure holding mechanism; 4-Blowing mechanism. Detailed Implementation
[0036] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0037] Figure 1 This is a side view of the electrode transmission correction device provided in an embodiment of this application. Please refer to... Figure 1 The structure shown illustrates that the electrode transfer and correction device includes a transfer mechanism 1, a correction mechanism 2, and a holding mechanism 3. The transfer mechanism 1 has a first transfer surface B1, which is used to transfer the electrode 01 from the transfer mechanism 1 to the correction mechanism 2. The correction mechanism 2 has a second transfer surface B2, which is used to transfer the electrode 01 transferred from the first transfer surface B1. The electrode 01 moves in a direction c from the transfer mechanism 1 to the correction mechanism 2. The holding mechanism 3 has a holding position and a lifting position. When the holding mechanism 3 is in the holding position, a holding and transfer space for the electrode 01 is formed between the holding mechanism 3 and the first transfer surface B1. When the holding mechanism 3 is in the lifting position, the electrode 01 moves out of the holding and transfer space.
[0038] It should be noted that when the electrode transfer correction device with the pressing mechanism 3 is installed, the pressing mechanism 3 moves downward until it forms a pressing transfer space with the first transfer surface B1, and the electrode 01 can move relative to the pressing transfer space along direction c; when the electrode 01 reaches the preset position, the pressing mechanism 3 releases the electrode 01; after being released, the electrode 01 moves and is corrected on the second transfer surface B2 of the correction mechanism 2.
[0039] It should be understood that when electrode 01 is partially transferred from the first transmission surface B1 to the second transmission surface B2, since electrode 01 is partially in the pressing and transmission space, electrode 01 only moves forward relative to the second transmission surface B2. When the pressing mechanism 3 switches from the pressing position to the lifting position, electrode 01 moves and corrects itself on the second transmission surface B2. It is worth noting that the electrode transfer and correction device provided in this application embodiment can switch the pressing mechanism 3 from the pressing position to the lifting position when electrode 01 reaches a preset position on the second transmission surface B2. This allows control over where electrode 01 begins to move and correct itself on the second transmission surface B2, preventing electrode 01 from flying out of the correction area, improving the stability of electrode 01 during the transfer and correction process, and thus increasing the correction success rate.
[0040] For example, when the distance between the front end of the electrode 01 and the blocking member 22 located at the first edge of the second transmission surface B2 is 4-5 mm, the pressing mechanism 3 switches from the pressing position to the lifting position to release the electrode 01. Of course, since the size and material of the electrode 01 may change, the pressing mechanism 3 switches to the lifting position not only when the distance between the front end of the electrode 01 and the blocking member 22 is 4-5 mm.
[0041] In one specific embodiment, the pressing mechanism 3 includes at least two pressing members, which are spaced apart along a first direction, and each pressing member is rotatable about its own axis, with the first direction perpendicular to direction c. It should be noted that the pressing mechanism 3 can be configured to include only one pressing member, or two pressing members, or other numbers of pressing members, depending on the requirements. As for the form of the pressing members, they can be rubber wheels, metal wheels, or brushes; the specific configuration can be determined according to requirements and will not be elaborated further here.
[0042] In one embodiment, the position of the holding member relative to the first transmission surface B1 is adjustable along the traveling direction c of the electrode 01.
[0043] It should be noted that the position of the holding member relative to the first transmission surface B is adjustable along direction c, which makes the electrode transmission correction device provided in this application embodiment applicable to electrodes 01 of different sizes, thus broadening the application scenarios of the device.
[0044] In one embodiment, please refer to Figure 2 The structure shown includes a transmission mechanism 1 comprising a plurality of parallel first rollers 11 forming a first transmission surface B1; and a correction mechanism 2 comprising a plurality of parallel second rollers 21 forming a second transmission surface B2, wherein the extension direction of the second rollers 21 forms a certain angle with the extension direction of the first rollers 11.
[0045] For example, in the transmission mechanism 1, a plurality of first rollers 11 are arranged sequentially in the traveling direction c of the electrode 01, connected to the same drive shaft, and driven by the same conveyor belt. The plurality of first rollers 11 in the transmission mechanism 1 have the same horizontal height, where 'same height' includes cases where the heights are completely equal and the height difference is less than 0.1 mm. It should be understood that the top surfaces of the plurality of first rollers 11 in the transmission mechanism 1 form a first transmission surface B1.
[0046] Similarly, the multiple second rollers 21 in the correction mechanism 2 are connected to the same drive shaft and driven by the same conveyor belt. Specifically, the multiple second rollers 21 in the correction mechanism 2 have the same horizontal height, where 'same height' includes cases where the heights are completely equal and the height difference is less than 0.1 mm. The top surfaces of the multiple second rollers 21 in the correction mechanism 2 form a second transmission surface B2.
[0047] Optionally, the diameters of the first roller 11 and the second roller 21 can be the same or different, and can be adjusted according to the actual process requirements.
[0048] Optionally, the linear velocities of the rolling surfaces of the first roller 11 and the second roller 21 can be the same or different. In other words, the transmission speeds of the transmission mechanism 1 and the correction mechanism 2 can be the same or different, and can be adjusted according to the actual process requirements.
[0049] Figure 3 This is another schematic diagram of the electrode transmission correction device provided in the embodiments of this application. Figure 4 for Figure 3 The sectional view at point AA. Please refer to... Figure 4 refer to Figure 3 The structure shown includes a correction mechanism 2 that further includes a blocking member 22, which is disposed on the side of the second transmission surface B2 away from the first transmission surface B1 to limit at least one corner of the electrode 01; and at least a portion of the blocking member 22 can be extended or retracted relative to the second transmission surface B2 along the direction d perpendicular to the second transmission surface B2.
[0050] It should be noted that at least a portion of the blocking member 22 in the electrode transfer correction device provided in this application embodiment can be extended or retracted along the direction perpendicular to the second transfer surface B2. Specifically, in conjunction with the extension or retraction operation, the blocking member 22 can block the electrode 01 during the correction process to prevent the electrode 01 from flying out; at the same time, when the electrode 01 needs to undergo subsequent bonding operations, the height m of the blocking member 22 exceeding the second transfer surface B2 can be shortened to avoid it, so as to facilitate the subsequent bonding operations.
[0051] Therefore, the electrode transfer and correction device provided in this application embodiment can improve the stability of the device for electrode 01 transfer and correction, thereby improving production efficiency.
[0052] In one specific implementation, please refer to [link / reference]. Figure 3 The structure shown includes a first block 221 and a second block 222. The first block 221 is disposed along the first edge of the second transmission surface B2, and the second block 222 is disposed along the second edge of the second transmission surface B2. The first edge is the side edge of the second transmission surface B2 away from the first transmission surface B1, and the second edge is perpendicular to the first edge.
[0053] Specifically, taking the first stop 221 set along the Y direction and the second stop 222 set along the X direction as an example, the transmission process of the electrode 01 is as follows: First, the transmission mechanism 1 transmits the electrode 01 along direction c to the second transmission surface B2 of the correction mechanism 2. Then, the second transmission surface B2 is used to transmit the electrode 01 in an inclined direction (inclined from the X direction to the Y direction) to the blocking member 22 for positioning. It should be understood that the electrode 01 on the second transmission surface B2 includes an X-direction velocity and a Y-direction velocity. The first stop 221 and the second stop 222 cooperate to align at least one foot of the electrode 01.
[0054] It is worth noting that if the included angle θ between the first roller 11 and the second roller 21 is too small or too large, it can easily cause the electrode 01 to move too fast in one direction in the X or Y direction, resulting in alignment failure or a long alignment time. In this embodiment, the included angle θ is set to a range of 30° to 60°, which can ensure the alignment efficiency of the electrode 01 and enable the electrode 01 to be aligned quickly.
[0055] Please continue to refer to this. Figure 3 In the structure shown, since the dimension of the electrode 01 along the Y direction is larger than its dimension along the X direction, the dimension of the first stop 221 along the Y direction can be set to be larger than the dimension of the second stop 222 along the X direction. Alternatively, the first stop 221 can be configured to include at least two sub-stops 2211, and the at least two sub-stops 2211 are spaced apart along the first edge. For example, as shown... Figure 5 As shown, the two sub-blocks 2211 are spaced apart along the Y direction.
[0056] Specifically, the first stop 221 has a lifting position and a lowering position. When the blocking member 22 is in the lifting position, the top of the first stop 221 extends beyond the second transmission surface B2, and the first stop 221 cooperates with the second stop 222 to limit at least one corner of the electrode 01. When the first stop 221 is in the lowering position, the distance between the top of the first stop 221 and the second transmission surface B2 decreases relative to the lifting position. At this time, the top of the first stop 221 cooperates with the second stop 222 to form a clearance for the electrode 01 to move out. Specifically, the first stop 221 can be completely retracted below the second transmission surface B2, or the first stop 221 can simply extend its top slightly beyond the second transmission surface B2.
[0057] In one possible implementation, the subsequent electrode 01 bonding mechanism may include a blocking portion having a groove for the first stop 221 to be inserted. When the first stop 221 is in the lifting position, the top of the first stop 221 is inserted into the groove to form a more effective shielding of the electrode 01, preventing the electrode 01 from flying out of the correction mechanism from the top of the first stop 221, thereby avoiding downtime and improving production efficiency.
[0058] It should be understood that when the first stop 221 includes at least two sub-stops 2211, the at least two sub-stops 2211 can be driven individually by multiple drive motors to broaden the applicable scenarios. Alternatively, the at least two sub-stops 2211 can be driven simultaneously by the same drive motor to simplify the overall structure.
[0059] Of course, the second stop 222 can also be controlled to extend or retract in the vertical direction d as needed, which will not be elaborated here.
[0060] In some embodiments, please refer to Figure 6 In the structure shown, along the traveling direction c of the electrode 01, the first end of the second transmission surface B2 is higher than the last end of the first transmission surface B1. It should be understood that "first end" refers to the end of the electrode 01 that is first contacted by the transmission mechanism 1 and the correction mechanism 2 along direction c; similarly, "last end" refers to the end of the electrode 01 that is last contacted by the transmission mechanism 1 and the correction mechanism 2 along direction c.
[0061] It should be noted that the electrode transmission and correction device provided in this application provides a height difference between the transmission mechanism 1 and the correction mechanism 2 by setting the first end of the second transmission surface B2 higher than the tail end of the first transmission surface B1. This allows the electrode 01 to be transmitted from the transmission mechanism 1 to the correction mechanism 2 along direction c, so that the subsequent electrode 01 can be transmitted as follows: Figure 6 The electrode is inserted below the preceding electrode 01 on the second transmission surface B2. At this time, the preceding electrode 01 and the following electrode 01 on the second transmission surface B2 are partially stacked, and each electrode 01 no longer occupies the entire electrode area on the second transmission surface B2 alone, thereby improving transmission efficiency.
[0062] It should be understood that the form of electrode 01 during transmission between transmission mechanism 1 and correction mechanism 2 is not limited to... Figure 6 The shape shown is for illustrative purposes only. Because the electrode 01 has a certain degree of flexibility, it will undergo a certain deformation during transmission between the transmission mechanism 1 and the correction mechanism 2, which is not shown here.
[0063] It is worth noting that the structures of the first transmission surface B1 in the transmission mechanism 1 and the second transmission surface B2 in the correction mechanism 2 are not limited to... Figure 6 The structure shown is as follows. The first transmission surface B1 can be a horizontal transmission surface or an inclined transmission surface with an angle to the ground. Similarly, the second transmission surface B2 can be a horizontal transmission surface or an inclined transmission surface with an angle to the ground.
[0064] In some embodiments, along the traveling direction c of the electrode 01, the tail end of the first transmission surface B1 is not lower than the head end of the first transmission surface B1. It should be noted that when the tail end of the first transmission surface B1 is not lower than the head end of the first transmission surface B1, this structural arrangement allows the electrode 01 to have a better deformation posture during transmission between the transmission mechanism 1 and the correction mechanism 2, so that the electrode 01 can be inserted more smoothly below the previous electrode 01 on the second transmission surface B2.
[0065] Specifically, in one implementation, the first transmission surface B1 is as follows: Figure 6 In the structure shown, the tail end of the first transmission surface B1 is flush with the head end, that is, the first transmission surface B1 is a horizontal transmission surface; in another embodiment, the first transmission surface B1 is as follows: Figure 7 As shown in the structure, the tail end of the first transmission surface B1 is higher than the head end; in other words, the first transmission surface B1 is tilted upward relative to the ground. Of course, the tilt angle of the first transmission surface B1 needs to be set according to requirements. Specifically, the friction between the electrode 01 and the first transmission surface B1, as well as other factors, need to be considered to ensure that the electrode 01 can move along the direction c with the first transmission surface B1.
[0066] To facilitate the description of the structural relationship between the first transmission surface B1 and the second transmission surface B2, we will now assume that both the first transmission surface B1 and the second transmission surface B2 are as follows: Figure 6 The horizontal transmission surface shown is used as an example for illustration.
[0067] Please refer to Figure 6In one embodiment of the structure shown, the height difference between the tail end of the first transmission surface B1 and the head end of the second transmission surface is h in the vertical direction. The range of h is exemplarily 2mm to 10mm, or even 3mm to 4mm, such as 3mm, 3.5mm, or 4mm. It is worth noting that this height difference h affects the transmission posture of the electrode 01 between the transmission mechanism 1 and the correction mechanism 2.
[0068] Please refer to the following: Figure 8 In the structure shown, along the horizontal direction, there is a gap L between the tail end of the first transmission surface B1 and the head end of the second transmission surface B2. This gap L is another factor affecting the transmission posture of the electrode 01 between the transmission mechanism 1 and the correction mechanism 2. For example, the range of this gap L is 0mm to 10mm, or even 0 to 8mm. For instance, the value of the gap L can be set to 0mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, or even 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, or 8mm.
[0069] It is worth noting that by adjusting the gap L and the height difference h, the degree of suspension of the electrode 01 during transmission between the transmission mechanism 1 and the correction mechanism 2 can be changed. This degree of suspension will affect the transmission posture of the electrode 01, thereby affecting the success rate of inserting the subsequent electrode 01 into the previous electrode 01.
[0070] For example, h is selected as 3mm to 4mm and L as 0 to 8mm. It should be noted that when h and L are set within the above range, the transmission posture of electrode 01 is better when it is transmitted between transmission mechanism 1 and correction mechanism 2, and the subsequent electrode 01 can be better inserted between the previous electrode 01 and the second transmission surface B2.
[0071] In some embodiments, the electrode transfer correction apparatus provided in this application further includes, for example, Figure 9 The air blowing mechanism 4 is shown. Figure 10 for Figure 9 The sectional view at point AA, combined with Figure 9 refer to Figure 10 In the intermediate structure, the air blowing mechanism 4 is located on the side of the second transmission surface B2 facing the first transmission surface B1, and is used at least to blow air onto the rear end of the electrode 01 transmitted to the second transmission surface B2, so that the subsequent electrode 01 can be smoothly inserted between the previous electrode 01 located on the second transmission surface B2 and the second transmission surface B2, thereby improving the success rate of the subsequent electrode 01 inserting into the previous electrode 01, preventing problems with the transmission pattern between the electrode 01, and improving the transmission success rate of the device. It should be understood that "front end" refers to the part along direction c where the electrode 01 first contacts the transmission mechanism 1 or the correction mechanism 2, and conversely, "rear end" refers to the part along direction c where the electrode 01 contacts the transmission mechanism 1 or the correction mechanism 2 later. Of course, the air blowing mechanism 4 can be as follows:Figure 9 and Figure 10 The air blowing mechanism 4 is located between the transmission mechanism 1 and the correction mechanism 2. Of course, the air blowing mechanism 4 can also be located below the correction mechanism 2, and the air blowing mechanism 4 blows gas through the gap between the second rollers 21 for transmission.
[0072] It should be noted that the blowing mechanism 4 may include one or more blowing nozzles. In one embodiment, the blowing mechanism 4 includes multiple nozzles, which are spaced apart along the Y direction. It should be understood that, in one possible implementation, multiple nozzles can be selectively opened and closed, causing the blowing mechanism 4 to blow on the rear end of the electrode 01 conveyed by the second transmission surface B2, so that the rear end of the electrode 01 is raised, facilitating the insertion of the front end of the subsequent electrode 01 between the previous electrode 01 and the second transmission surface B2. Alternatively, the blowing mechanism 4 can be continuously opened, and the blowing volume can be controlled so that the blowing mechanism 4 continuously blows on the electrode 01, ensuring that the electrode 01 is not blown away.
[0073] It is worth noting that, in the vertical direction, the closer the air blowing mechanism 4 is to the second transmission surface B2, the greater the force exerted by the air blowing mechanism 4 on the electrode plate 01 under the same air output condition. Conversely, under the same force condition, the air output of the air blowing mechanism 4 can be reduced.
[0074] It is worth noting that this application provides a method for using an electrode transmission correction device. Please refer to... Figure 11 The flowchart shown illustrates the usage method of the electrode transmission correction device provided in this application embodiment, which includes:
[0075] Step S111: The first transmission surface B1 of the transmission mechanism 1 is the transmission electrode 01;
[0076] Step S112: The pressing and transmission space formed by the pressing mechanism 3 and the first transmission surface B1 presses and transmits the electrode 01;
[0077] Step S113: When electrode 01 reaches the preset position, the pressing mechanism 3 switches from the pressing position to the lifting position and releases electrode 01;
[0078] Step S114: After release, the electrode 01 undergoes transmission calibration on the second transmission surface B2 of the calibration mechanism 2.
[0079] In the method of using the electrode transfer and correction device provided in this application embodiment, when the electrode 01 is partially transferred from the first transfer surface B1 to the second transfer surface B2, since the electrode 01 is partially in the pressing and transfer space, the electrode 01 only moves forward relative to the second transfer surface B2; when the pressing mechanism 3 switches from the pressing station to the lifting station, the electrode 01 moves and corrects on the second transfer surface B2.
[0080] It is worth noting that the method of using the electrode transfer and correction device provided in this application embodiment can switch the holding mechanism 3 from the holding position to the lifting position when the electrode 01 reaches the preset position of the second transfer surface B2. This can control where the electrode 01 starts to move and correct on the second transfer surface B2, so as to prevent the electrode 01 from flying out of the correction area, improve the stability of the electrode 01 in the transfer and correction process, and thus improve the correction success rate.
[0081] In one embodiment of this application, the method for switching the pressing mechanism from the pressing station to the lifting station and releasing the electrode when the electrode reaches the preset position in step S113 includes:
[0082] When the distance between the front end of the electrode and the blocking member located at the first edge of the second transmission surface reaches a preset value, the pressing mechanism switches from the pressing position to the lifting position to release the electrode.
[0083] It should be understood that the preset values will vary depending on factors such as electrode size and material, which will not be elaborated here.
[0084] It is worth noting that the electrode transmission correction device in the method of using the electrode transmission correction device provided in this application embodiment can be any of the electrode transmission correction devices provided in the above technical solutions, and will not be described again here.
[0085] Furthermore, this application embodiment also provides a cell forming apparatus, which includes the electrode transfer correction device provided by any of the above-described technical solutions.
[0086] For example, the battery cell forming equipment provided in this application includes two electrode transfer and correction devices, which are symmetrically arranged and used to transfer the first electrode and the second electrode, respectively.
[0087] It is worth noting that each cell unit includes a separator and a first electrode and a second electrode located on both sides of the separator. The first electrode and the second electrode have opposite polarities; for example, when the first electrode is a positive electrode, the second electrode is a negative electrode, and vice versa. When using the cell forming equipment provided in the embodiments of this application, two electrode transfer and correction devices can be used to transfer the first electrode and the second electrode respectively.
[0088] Of course, the cell forming equipment provided in this application embodiment may also be equipped with a bonding device to bond the first electrode and the second electrode to both sides of the separator. As for the specific structure of the bonding device, it can be set according to the requirements, and will not be described in detail here.
[0089] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.
Claims
1. An electrode transfer correction device, characterized in that, The device includes a transmission mechanism, a calibration mechanism, and a holding mechanism. The transmission mechanism has a first transmission surface for transmitting the electrode sheet from the transmission mechanism to the calibration mechanism. The calibration mechanism has a second transmission surface for transmitting the electrode sheet transmitted from the first transmission surface. The holding mechanism has a holding station and a lifting station. When the holding mechanism is in the holding station, a holding and transmission space for the electrode sheet is formed between the holding mechanism and the first transmission surface, so that when the electrode sheet is partially transmitted from the first transmission surface to the second transmission surface, the electrode sheet is partially located in the holding and transmission space, and the electrode sheet only moves forward relative to the second transmission surface. When the holding mechanism is in the lifting station, the electrode sheet is removed from the holding and transmission space and moves and is calibrated on the second transmission surface.
2. The electrode transfer correction device according to claim 1, characterized in that, The pressing mechanism includes at least two pressing members that can rotate around their own axis, the at least two pressing members being spaced apart along a first direction, the first direction being perpendicular to the transmission path of the electrode.
3. The electrode transfer correction device according to claim 2, characterized in that, Along the traveling direction of the electrode, the position of the holding member relative to the first transmission surface is adjustable.
4. The electrode transfer correction device according to any one of claims 1-3, characterized in that, The correction mechanism further includes a blocking member disposed on the side of the second transmission surface away from the first transmission surface to limit at least one corner of the electrode; at least a portion of the blocking member can be extended or retracted relative to the second transmission surface along a direction perpendicular to the second transmission surface.
5. The electrode transfer correction device according to claim 4, characterized in that, The blocking member includes a first block and a second block. The first block is disposed along a first edge of the second transmission surface; the second block is disposed along a second edge of the second transmission surface. The first edge is the side edge of the second transmission surface away from the first transmission surface, and the second edge is perpendicular to the first edge.
6. The electrode transfer correction device according to claim 5, characterized in that, The first stop has a lifting position and a lowering position. When the first stop is in the lifting position, the first stop cooperates with the second stop to limit at least one corner of the electrode. When the first stop is in the lowering position, the top of the first stop cooperates with the second stop to form a clearance opening for the electrode to be moved out.
7. The electrode transfer correction device according to claim 6, characterized in that, The first stop includes at least two sub-stops, which are spaced apart along the first edge.
8. A method of using the electrode transfer correction device as described in any one of claims 1 to 7, characterized in that, include: The first transmission surface transmission electrode of the transmission mechanism; The pressing and transmission space formed by the pressing mechanism and the first transmission surface presses and transmits the electrode sheet. When the electrode reaches the preset position, the pressing mechanism switches from the pressing position to the lifting position and releases the electrode. After release, the electrode undergoes transmission correction on the second transmission surface of the correction mechanism; When the electrode is partially transferred from the first transmission surface to the second transmission surface, the electrode portion is located in the pressing and transmission space, and the electrode only moves forward relative to the second transmission surface.
9. The method of use according to claim 8, characterized in that, The method for the electrode sheet to reach a preset position and for the pressing mechanism to switch from a pressing station to a lifting station and release the electrode sheet includes: When the distance between the front end of the electrode and the blocking member located at the first edge of the second transmission surface reaches a preset value, the pressing mechanism switches from the pressing position to the lifting position to release the electrode.
10. A battery cell forming equipment, characterized in that, Includes the electrode transmission correction device as described in any one of claims 1-7.
Citation Information
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