Electrode preparation device and solar cell

Abstract

The present disclosure is applicable to the technical field of photovoltaics. Provided are an electrode preparation device and a solar cell. The electrode preparation device comprises: a solar cell; an information collection apparatus, wherein there is relative movement between the information collection apparatus and the solar cell; and an electrode preparation apparatus, which is configured to prepare an electrode on the solar cell.

Description

Electrode fabrication equipment and solar cells

[0001] Priority information

[0002] This disclosure claims priority to Chinese Patent Application No. 202411434236.6, filed on October 14, 2024, with the State Intellectual Property Office of China, entitled “Electrode Preparation Equipment, Battery Cell, Module, Method and Battery Production System”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure pertains to the field of photovoltaic technology, and particularly relates to an electrode preparation device and a solar cell. Background Technology

[0004] In existing solar cell electrode fabrication processes, multiple cameras (information collection devices) are used to position the solar cells, with each camera's position corresponding to a specific mark point on the cell. During cell positioning, the solar cell and the cameras need to be relatively stationary to accurately capture the mark points. This not only impacts production efficiency but also requires a camera for each mark point, resulting in a large number of cameras and multiple mounting brackets, leading to a redundant, complex structure and high cost.

[0005] Application content

[0006] This disclosure provides an electrode preparation device and a solar cell, which have lower testing costs and shorter testing time, reducing production costs while improving production efficiency.

[0007] In a first aspect, this disclosure provides an electrode fabrication apparatus, comprising:

[0008] Battery cells;

[0009] An information collection device, in which there is relative motion between the information collection device and the solar cell, collects relevant information from the solar cell during this relative motion; and

[0010] An electrode fabrication apparatus is configured to fabricate electrodes on a solar cell.

[0011] This disclosure utilizes the relative movement between the information collection device and the solar cell, allowing for the testing of the solar cell with a smaller number of information collection devices. Furthermore, the testing is completed during this relative movement, avoiding the waiting time that may occur in static testing, thus significantly improving production efficiency. The information collection device feeds the test results back to the electrode preparation device, which then makes adaptive adjustments to achieve precise printing of electrodes on the solar cell.

[0012] Optionally, the battery cell and electrode fabrication apparatus are arranged opposite to each other along a first direction;

[0013] Along the first direction, the information collection device is positioned between the battery cell and the electrode fabrication device; or

[0014] Along the first direction, the battery cell is positioned between the information collection device and the electrode preparation device.

[0015] This disclosure places the information collection device between the battery cell and the electrode preparation device, or places the battery cell between the information collection device and the electrode preparation device. The battery cell can be detected first and then the electrode can be prepared. The position of the battery cell can be determined based on the detection results. The electrode preparation device prepares the electrode according to the position of the battery cell, thus ensuring the accuracy of the electrode preparation position of the battery cell.

[0016] Optionally, the device also includes a moving device that moves at least one of the battery cell or the information collection device, so that there is relative motion between the information collection device and the battery cell.

[0017] Optionally, during the relative movement between the information collection device and the battery cell, the information collection device detects the battery cell.

[0018] This disclosure allows the movement of at least one of the battery cells or the information collection device via a mobile device to maintain the relative motion between the battery cells and the information collection device. During the relative motion, the information collection device is used to detect the battery cells. This allows for the detection of multiple battery cells with only a small number of information collection devices, eliminating the need for fixed detection of the battery cells. This saves on the cost of setting up information collection devices and improves detection efficiency.

[0019] Optionally, the moving device drives the battery cell to move along the first direction toward the electrode preparation device; the information collection device remains stationary.

[0020] In this disclosure, the information collection device remains stationary while the mobile device moves the battery cell in a first direction. That is, the information collection device is stationary but the battery cell moves, so that there is relative motion between the two, which allows the information collection device to detect the battery cell during the movement of the battery cell, thereby improving the accuracy of the detection.

[0021] Optionally, the moving device is a conveyor belt, which drives the battery cells to move at a constant speed along the first direction toward the electrode preparation device.

[0022] This disclosure maintains a constant speed during the movement of the moving device and the battery cells, thus avoiding errors in the detection results caused by speed changes and improving the accuracy of the detection results.

[0023] Optionally, the information collection device includes at least one camera.

[0024] Optionally, the number of cameras can be 1-20.

[0025] Optional, the number of cameras is 2.

[0026] Optionally, during the process of the information collection device collecting relevant information, the battery cell can be within the range that the information collection device can detect.

[0027] This disclosure ensures that the battery cell is within the detection range of the information collection device during the collection of relevant information. This allows the battery cell to be detected in real time during relative movement between the two devices, avoiding the situation where the battery cell cannot be detected due to unreasonable battery cell positioning.

[0028] Optionally, the information collection device and the battery cell are arranged opposite each other along the second direction;

[0029] The second direction is perpendicular to the first direction;

[0030] During the process of the information collection device collecting relevant information, along the second direction, the orthographic projection of the information collection device and the orthographic projection of the solar cell at least partially overlap.

[0031] In the process of collecting relevant information by the information collection device, the orthographic projection of the information collection device and the orthographic projection of the battery cell overlap at least partially along the second direction, so that the battery cell can be detected by the information collection device in real time during the relative movement between the two, avoiding the battery cell not being detected by the information collection device due to unreasonable battery cell position setting.

[0032] Optionally, multiple marker points are provided on the solar cell.

[0033] Optionally, the battery cell has a first surface and a second surface that are disposed opposite to each other in a second direction, and a plurality of marking points are disposed on the first surface or the second surface. The information collection device is configured to detect the plurality of marking points facing the first surface or the second surface, wherein the first surface is the front side of the battery cell and the second surface is the back side of the battery cell.

[0034] This disclosure provides a method to mark the battery cell by setting multiple marking points on it so that the information collection device can accurately detect it. In addition, marking points are set on the first or second surface of the battery cell, and the information collection device is set to detect multiple marking points facing the first or second surface. This setting method can make multiple marking points detectable by the information collection device.

[0035] Optionally, the battery cell and electrode fabrication apparatus are arranged opposite to each other along a first direction;

[0036] Along a third direction, the solar cell has a first edge and a second edge that are disposed opposite to each other, and the third direction is perpendicular to the first direction;

[0037] The multiple markers include at least a first set of markers near the first edge and a second set of markers near the second edge.

[0038] Optionally, the information collection device includes a first information collection device and a second information collection device disposed opposite each other along a third direction;

[0039] The first information collection device detects the first set of marker points;

[0040] The second information collection device detects the second set of marker points.

[0041] This disclosure provides a first set of marker points and a second set of marker points at the first and second edges of the battery cell, which are positioned opposite each other, and provides two information collection devices to detect the two sets of marker points respectively. This can better locate the edge position of the battery cell and determine whether the battery cell is tilted.

[0042] Optionally, along a third direction, the solar cell has a first portion including a first edge and a second portion including a second edge;

[0043] Along the second direction, the information collection device and the battery cell are positioned opposite each other, and the second direction is perpendicular to the first direction;

[0044] During the process of the information collection device collecting relevant information, along the second direction,

[0045] The orthographic projection of the first information collection device at least partially overlaps with the orthographic projection of the first part of the battery cell; the orthographic projection of the second information collection device at least partially overlaps with the orthographic projection of the second part of the battery cell.

[0046] Optionally, the first information collection device is positioned within the range that can detect the first set of marker points during the process of the first information collection device collecting relevant information about the battery cell, and the second information collection device is positioned within the range that can detect the second set of marker points during the process of the second information collection device collecting relevant information about the battery cell.

[0047] Optionally, the information collection device is a line scan camera.

[0048] This disclosure configures the information collection device as a line scan camera, which ensures that the information collection device can detect the battery cell accurately in real time during the process of relative movement between the battery cell and the information collection device, thereby improving the accuracy of detection.

[0049] Optionally, the device also includes a mounting bracket for mounting the information collection device.

[0050] In a second aspect, this disclosure provides a battery cell, which is prepared using the apparatus described in any of the first aspects above.

[0051] Thirdly, this disclosure provides a component including the battery cell described in the second aspect above.

[0052] Fourthly, this disclosure provides a method for controlling an electrode fabrication apparatus, comprising:

[0053] During the relative movement between the information collection device and the battery cell, relevant information about the battery cell is collected;

[0054] Based on the collected relevant information, the electrode fabrication device is controlled to fabricate electrodes on the solar cell.

[0055] Optionally, the method further includes:

[0056] The location of the marker points on the battery cell is determined based on the relevant information collected by the information collection device;

[0057] The detected positions of the marker points are compared with the preset positions of the marker points on the battery cells.

[0058] Based on the comparison results, the electrode fabrication device is controlled to fabricate electrodes on the battery cell.

[0059] This disclosure determines the position of the marker point on the battery cell based on the relevant information collected by the information collection device, compares the detected position of the marker point with the preset position of the marker point on the battery cell, and controls the electrode preparation device to prepare electrodes on the battery cell based on the comparison result. The electrode preparation strategy can be adjusted in real time based on the detection result of the marker point on the battery cell by the information collection device.

[0060] Optionally, based on the comparison results, the electrode preparation device is controlled to prepare electrodes on the solar cell, including: adjusting the position of the electrode preparation device based on the comparison results, and controlling the electrode preparation device to prepare electrodes on the solar cell.

[0061] This disclosure adjusts the position of the electrode preparation device based on the comparison results and controls the electrode preparation device to prepare electrodes on the solar cell. The electrode preparation device can make adaptive adjustments based on the position of the marker points to achieve precise printing of electrodes on the solar cell.

[0062] Optionally, the method further includes:

[0063] Control the movement of the mobile device to move at least one of the battery cell or the information collection device, so that there is relative motion between the information collection device and the battery cell.

[0064] Optionally, comparing the detected location of the marker with the preset location of the marker on the battery cell specifically includes:

[0065] The coordinate information of the identification point of each battery cell is compared with the preset coordinate information of the identification point of each battery cell.

[0066] This disclosure compares the coordinate information of the marking points of each solar cell with the preset coordinate information of the marking points of each solar cell. This allows for accurate determination of the error in the coordinate information of each marking point and timely adjustment of the position of the electrode preparation device to ensure the accuracy of the electrode position printed on the solar cell.

[0067] Optionally, the moving device is a conveyor belt, and the movement of the moving device is controlled to drive the battery cells to move at a constant speed.

[0068] Optionally, the information collection device is a line scan camera.

[0069] Fifthly, this disclosure provides a solar cell manufacturing system, including the electrode preparation equipment of the first aspect, the solar cell of the second aspect, and the components of the third aspect. Attached Figure Description

[0070] Figure 1 is a schematic diagram of the structure of the first electrode preparation device provided in this disclosure;

[0071] Figure 2 is a schematic diagram of the structure of the second electrode preparation device provided in this disclosure;

[0072] Figure 3 is a schematic diagram of the structure of the third electrode preparation device provided in this disclosure;

[0073] Figure 4 is a schematic diagram of the structure of the battery cell prepared by the electrode preparation equipment provided in this disclosure;

[0074] Figure 5 is a schematic diagram of the process for preparing battery cell electrodes using the electrode preparation equipment provided in this disclosure.

[0075] Explanation of reference numerals in the attached drawings: 100, battery cell; 101, first surface; 102, second surface; 103, first edge; 104, second edge; 200, moving device; 300, information collection device; 301, first information collection device; 302, second information collection device; 400, electrode preparation device; 500, mounting bracket; 600, marking point; 601, first group of marking points; 602, second group of marking points. Detailed Implementation

[0076] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this disclosure, and should not be construed as limiting this disclosure. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining this disclosure and are not intended to limit this disclosure.

[0077] In the description of this disclosure, it should be understood that the terms “length”, “width”, “upper”, “lower”, “left”, “right”, “horizontal”, “top”, “bottom”, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure 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 disclosure.

[0078] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this disclosure, "a plurality of" means two or more, unless otherwise explicitly specified.

[0079] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0080] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0081] The following disclosure provides numerous different embodiments or examples for implementing various structures of this disclosure. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this disclosure. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this disclosure, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0082] The solar cell production system in this disclosure embodiment may include the electrode preparation equipment in this disclosure embodiment. The electrode preparation equipment in this disclosure embodiment can be used to prepare the solar cells in this disclosure embodiment. Several solar cells in this disclosure embodiment can form the components in this disclosure embodiment.

[0083] As shown in Figure 1, an electrode fabrication apparatus includes a solar cell 100, a moving device 200, an information collecting device 300, and an electrode fabrication apparatus 400. In this embodiment, the electrode fabrication apparatus further includes a feeding device (not shown) for removing the solar cell 100 after electrode fabrication. The electrode fabrication apparatus 400 includes a printing head assembly (not shown) and an adjusting mechanism (not shown). The printing head assembly is used to print electrodes on the solar cell 100, and the adjusting mechanism is used to adjust the position of the printing head to improve the printing accuracy of the electrodes.

[0084] As shown in Figure 1, multiple battery cells 100 can be arranged sequentially. When multiple battery cells 100 are arranged, each battery cell 100 can refer to any one of the multiple battery cells 100 to be tested. As shown in Figure 1, when four battery cells 100 are arranged sequentially, the four battery cells 100 from left to right are respectively referred to as battery cell A, battery cell B, battery cell C, and battery cell D. In some embodiments, when the information collection device 300 sequentially detects battery cell A, battery cell B, battery cell C, and battery cell D during relative movement with each battery cell 100, the information collection device 300 first detects multiple marker points 600 on battery cell A. At this time, battery cell A is considered the battery cell 100 to be detected by the information collection device 300. The information collection device 300 then sequentially detects battery cell B, battery cell C, and battery cell D. At this time, battery cell B, battery cell C, and battery cell D are considered the battery cell 100 to be detected by the information collection device 300 during the detection process. It can be understood that the detection order of the information collection device 300 for battery cell A, battery cell B, battery cell C, and battery cell D can also be battery cell D, battery cell C, battery cell B, and battery cell A sequentially, or it can be detected in other orders. This disclosure does not limit this.

[0085] There is relative motion between the information collection device 300 and the battery cell 100. During the relative motion with the battery cell 100, the information collection device 300 collects relevant information about the battery cell 100. The information collection device 300 is configured to detect the battery cell 100. The electrode preparation device 400 is configured to prepare electrodes on the battery cell 100.

[0086] This disclosure utilizes the relative motion between the information collection device 300 and the battery cell 100. During this relative motion, the information collection device 300 can detect the battery cell 100. A relatively small number of information collection devices 300 can be used to complete the detection of the battery cell 100.

[0087] Understandably, there is relative motion between the information collection device 300 and the battery cell 100. That is, at least one of the battery cell 100 or the information collection device 300 moves to create relative motion between them. For example, the information collection device 300 may be stationary while the battery cell 100 moves; or the information collection device 300 may move while the battery cell 100 remains stationary; or the information collection device 300 may move at a first speed while the battery cell 100 moves at a second speed, where the first and second speeds are different.

[0088] In some embodiments, the information collection device 300 moves at a constant speed at a first speed, and the battery cell 100 moves at a constant speed at a second speed. The first speed and the second speed are different, so that the information collection device 300 and the battery cell 100 are in a state of relative motion. During the relative motion between the information collection device 300 and the battery cell 100, the information collection device 300 can detect the battery cell 100.

[0089] In some embodiments, the information collection device 300 remains stationary while the battery cell 100 moves, achieving relative motion between the information collection device 300 and the battery cell 100. The stationary nature of the information collection device 300 significantly reduces vibrations caused by its own movement, thereby improving the stability and accuracy of the detection. By fixing the information collection device 300, the interference of decreased detection accuracy due to speed changes during movement can be effectively reduced. Furthermore, in some embodiments, in the visual inspection system, a light source can be provided to illuminate the object to be inspected for better visual inspection results.

[0090] When the moving device 200 drives the battery cell 100 to move along the first direction, the information collecting device 300 remains stationary. That is, the information collecting device 300 is stationary while the battery cell 100 moves, creating relative motion between them. This allows the information collecting device 300 to detect the battery cell 100 during its movement, improving detection accuracy. In some embodiments, the information collecting device 300 continuously detects the battery cell 100 during its movement. In other embodiments, the information collecting device 300 detects the battery cell 100 intermittently during its movement, for example, by detecting it at regular intervals. The interval is not limited and can be, for example, 0.01 seconds, 1 second, etc.

[0091] In some embodiments, the information collection device 300 can be a camera with image recognition function. The camera used in this disclosure can be a CCD camera or a CMOS camera; depending on the structural characteristics of the sensor, it can also include a line scan camera or an area scan camera; depending on the scanning method, it can include an interlaced scan camera or a progressive scan camera; depending on the resolution, it can include a standard resolution camera or a high-resolution camera; depending on the output signal method, it can include an analog camera or a digital camera; depending on the output color, it can include a monochrome (black and white) camera or a color camera; depending on the output signal speed, it can include a standard speed camera or a high-speed camera; depending on the response frequency range, it can include a visible light (standard) camera, an infrared camera, an ultraviolet camera, etc. For example, a camera with a suitable resolution can be selected based on the required accuracy of the object to be detected, or a suitable camera can be selected based on camera cost, frame rate requirements, etc. For example, when the object to be detected has motion requirements, a high frame rate industrial camera should be selected. In the embodiments of this disclosure, since there is relative motion between the object to be detected (battery cell 100) and the information collection device 300, when the information collection device 300 remains stationary but the object to be detected (battery cell 100) moves, a camera with a high frame rate, such as a line scan camera, can be selected.

[0092] In some embodiments, the battery cell 100 and the electrode preparation apparatus 400 are arranged opposite to each other along a first direction; along the first direction, the information collection device 300 is disposed between the battery cell 100 and the electrode preparation apparatus 400, or along the first direction, the battery cell 100 is disposed between the information collection device 300 and the electrode preparation apparatus 400. By disposing the information collection device 300 between the battery cell 100 and the electrode preparation apparatus 400, or by disposing the battery cell 100 between the information collection device 300 and the electrode preparation apparatus 400, the battery cell 100 can be detected before electrode preparation. The position of the battery cell 100 can be determined based on the detection results, and the electrode preparation apparatus 400 performs electrode preparation according to the position of the battery cell 100, ensuring the accuracy of the electrode preparation position of the battery cell 100. Understandably, according to the manufacturing steps of the battery cell 100, in the first direction, the information collection device 300 and the electrode preparation device 400 are arranged in a predetermined order. The battery cell 100 is first detected by the information collection device 300 to determine the position coordinates of the battery cell 100, and then the electrode is prepared by the electrode preparation device 400.

[0093] When the information collection device 300 detects the battery cell 100 to be detected, one or more battery cells 100 can be set as the battery cell 100 to be detected. When the battery cell 100 to be detected is set as one battery cell 100, the battery cell 100 is used to refer to the battery cell 100 to be detected. When the battery cell 100 to be detected is set as multiple battery cells 100, the arrangement order and detection order of the battery cells 100 can refer to the above example, and will not be repeated here.

[0094] In some embodiments, the information collection device 300 and the electrode preparation device 400 are respectively disposed on the left side of the battery cell 100 to be tested. The moving direction of the battery cell 100 to be tested is from right to left, while the information collection device 300 remains stationary. The information collection device 300 is disposed near the left side of the battery cell 100 to be tested, and the electrode preparation device 400 is disposed to the left of the information collection device 300, so that the battery cell 100 to be tested is sequentially detected by the information collection device 300 to determine the position coordinates of each of the battery cells 100 to be tested, and then the electrode is prepared by the electrode preparation device 400.

[0095] In some embodiments, the information collection device 300 and the electrode preparation device 400 are respectively disposed on the right side of the solar cell 100 to be tested. The solar cell 100 to be tested moves from left to right, while the information collection device 300 remains stationary. The information collection device 300 is disposed near the right side of the solar cell 100 to be tested, and the electrode preparation device 400 is disposed near the right side of the information collection device 300, so that the solar cell 100 to be tested is sequentially detected by the information collection device 300 to determine the position coordinates of each of the solar cells 100 to be tested, and then the electrode preparation device 400 prepares the electrode. The position coordinates of the solar cell 100 can be represented by the coordinates of the marker point 600 provided on the solar cell 100. For details, please refer to the description in other parts of the application.

[0096] As described above, when the information collection device 300 detects the battery cell 100 to be detected, one or more battery cells 100 can be provided. When the battery cell 100 to be detected is set to one battery cell 100, it is referred to as battery cell 100. When the battery cell 100 to be detected is set to multiple battery cells 100, for example, when four battery cells 100 are arranged in sequence, the four battery cells 100 from left to right are referred to as battery cell A, battery cell B, battery cell C, and battery cell D respectively. When the battery cell 100 to be detected is set to one battery cell 100, the information collection device 300 and the electrode preparation device 400 are respectively set to the left side of this battery cell 100 so that when the moving direction of this battery cell 100 is from right to left, and the information collection device 300 remains stationary, the information collection device 300 first completes the position detection of this battery cell 100 before performing electrode preparation. Similarly, when the information collection device 300 and the electrode preparation device 400 are respectively positioned on the right side of a single battery cell 100, such that when the moving direction of the single battery cell 100 is from left to right, and the information collection device 300 remains stationary, the information collection device first completes the position detection of the single battery cell 100 before performing electrode preparation. When multiple battery cells 100 are to be detected, the information collection device 300 and the electrode preparation device 400 are respectively positioned to the left of the leftmost battery cell 100 among the multiple battery cells 100, such that when the moving direction of the multiple battery cells 100 is from right to left, and the information collection device 300 remains stationary, the information collection device 300 sequentially completes the position detection of each of the multiple battery cells 100 and then sequentially performs electrode preparation for each battery cell 100. Similarly, when the information collection device 300 and the electrode preparation device 400 are respectively positioned to the right of the rightmost battery cell 100 among the plurality of battery cells 100, such that when the moving direction of the plurality of battery cells 100 is from left to right, the information collection device 300 remains stationary and sequentially completes the position detection of each of the plurality of battery cells 100 and then sequentially performs electrode preparation for each battery cell 100.

[0097] Understandably, when any one or more of the multiple solar cells 100 do not need to undergo position detection by the information collection device 300 before electrode preparation, for example, when the multiple solar cells 100 include solar cell A, solar cell B, solar cell C, and solar cell D, and the four solar cells 100 are arranged sequentially from left to right, and solar cell A does not need to undergo position detection by the information collection device 300 before electrode preparation, the information collection device 300 and the electrode preparation device 400 can be respectively set to the left of solar cell B, so that when the multiple solar cells 100 move from right to left, and the information collection device 300 remains stationary, the information collection device 300 sequentially completes position detection of each of solar cells B, solar cell C, and solar cell D and then sequentially performs electrode preparation for each solar cell 100. Similarly, when the position detection of solar cell D by the information collection device 300 is not required before electrode preparation of solar cell 100, the information collection device 300 and the electrode preparation device 400 can be respectively positioned to the right of solar cell C. This allows the information collection device 300 to sequentially detect the position of each of solar cells C, B, and A, and then sequentially prepare the electrode for each of the solar cells 100, while the movement of the multiple solar cells 100 is from left to right and the information collection device 300 remains stationary. Likewise, when any one or more of the solar cells A, B, C, and D do not require the position detection of the information collection device 300 before electrode preparation, a similar setup can be implemented, and this disclosure does not impose any limitations on this.

[0098] In some embodiments, the relative motion between the information collection device 300 and the battery cell 100 is achieved by driving the mobile device 200. For example, the mobile device 200 drives the battery cell 100 to move in a first direction under the drive of a motor device (not shown), while the information collection device 300 remains stationary. Alternatively, the mobile device 200 drives the information collection device 300 to move in the first direction, while the battery cell 100 remains stationary. Or, one mobile device 200 drives the battery cell 100 to move in the first direction at a first speed, while another mobile device 200 drives the information collection device 300 to move at a second speed, where the first speed and the second speed are different.

[0099] Figure 1 only shows the mobile device 200 driving the battery cell 100 to move in a first direction under the drive of the motor device. In some embodiments, the mobile device 200 can also be placed on one side of the information collection device 300 to drive the information collection device 300 to move. This disclosure does not limit this.

[0100] In some embodiments, the moving device 200 drives the information collecting device 300 to move in a first direction while the battery cell 100 remains stationary. The moving direction of the information collecting device 300 is from right to left, and the information collecting device 300 is positioned on the right side of the battery cell 100 to be tested. The electrode preparation device 400 is fixed and positioned on the left side of the battery cell 100 to be tested, so that the battery cell 100 to be tested is sequentially detected by the information collecting device 300 to determine the position coordinates of each of the battery cells 100 to be tested, and then the electrode is prepared by the electrode preparation device 400.

[0101] Similarly, in some embodiments, the information collection device 300 moves from left to right. The information collection device 300 is positioned to the left of the battery cell 100 to be tested, while the electrode preparation device 400 remains stationary and is positioned to the right of the battery cell 100. This allows the battery cell 100 to be tested to be sequentially detected by the information collection device 300 to determine the position coordinates of each cell, and then the electrode preparation device 400 prepares the electrode. Understandably, in some embodiments, when the electrode preparation device 400 is stationary and the battery cell 100 is also stationary, the battery cell 100 can be manually moved sequentially or the electrode preparation device 400 can be controlled to prepare the electrode. Alternatively, the electrode preparation device 400 can be reasonably positioned in various locations to prepare the electrode. This disclosure does not limit this approach.

[0102] As described above, when the information collection device 300 detects the battery cell 100 to be detected, one or more battery cells 100 can be provided.

[0103] When the cell to be tested 100 is set to one cell 100, then the cell 100 to be tested is the cell 100.

[0104] When the battery cell 100 to be tested is set to multiple battery cells 100, for example, when four battery cells 100 are arranged in sequence, the four battery cells 100 from left to right are respectively referred to as battery cell A, battery cell B, battery cell C, and battery cell D.

[0105] When the battery cell 100 to be tested is set to a single battery cell 100, the information collection device 300 is positioned on the right side of this single battery cell 100, and the electrode preparation device 400 is positioned on the left side of this single battery cell 100. This arrangement ensures that when the information collection device 300 moves from right to left, and the single battery cell 100 remains stationary, the information collection device 300 first completes the position detection of this single battery cell 100 before performing electrode preparation. Similarly, when the information collection device 300 is positioned on the left side of this single battery cell 100, and the electrode preparation device 400 is positioned on the right side of this single battery cell 100, this arrangement ensures that when the information collection device 300 moves from left to right, and the single battery cell 100 remains stationary, the information collection device 300 first completes the position detection of this single battery cell 100 before performing electrode preparation.

[0106] When the battery cell 100 to be tested is configured as multiple battery cells 100, the information collection device 300 and the electrode preparation device 400 are respectively positioned to the right of the rightmost battery cell 100 and to the left of the leftmost battery cell 100 among the multiple battery cells 100. This allows the information collection device 300 to sequentially detect the position of each of the multiple battery cells 100 while the multiple battery cells 100 remain stationary when moving from right to left, and then sequentially prepare the electrode for each battery cell 100. Similarly, when the information collection device 300 and the electrode preparation device 400 are respectively positioned to the right of the leftmost battery cell 100 and to the right of the rightmost battery cell 100 among the multiple battery cells 100, this allows the information collection device 300 to sequentially detect the position of each of the multiple battery cells 100 while moving from left to right while the multiple battery cells 100 remain stationary when moving from left to right, and then sequentially prepare the electrode for each battery cell 100.

[0107] Understandably, when any one or more of the multiple solar cells 100 do not need to undergo position detection by the information collection device 300 before electrode preparation, for example, when the multiple solar cells 100 include solar cell A, solar cell B, solar cell C, and solar cell D, and the four solar cells 100 are arranged sequentially from left to right, and solar cell A does not need to undergo position detection by the information collection device 300 before electrode preparation, the information collection device 300 and the electrode preparation device 400 can be respectively set to the right side of solar cell D and the left side of solar cell B. This way, when the information collection device 300 moves from right to left and the multiple solar cells 100 remain stationary, the information collection device 300 sequentially completes position detection of each of solar cells D, solar cell C, and solar cell B before preparing the electrode for each solar cell 100. Similarly, when the position detection of solar cell D by the information collection device 300 is not required before electrode preparation of solar cell 100, the information collection device 300 and the electrode preparation device 400 can be respectively positioned to the left of solar cell A and to the right of solar cell C. This allows the information collection device 300 to sequentially detect the position of each of solar cells A, B, and C, and then sequentially prepare the electrode for each of the solar cells 100, while the information collection device 300 moves from left to right and the solar cells 100 remain stationary. Likewise, when any one or more of the solar cells A, B, C, and D do not require the position detection of the information collection device 300 before electrode preparation, a similar setup can be implemented, and this disclosure does not impose any limitations on this.

[0108] Furthermore, when there are multiple battery cells 100, the information collection device 300 will sequentially detect the multiple battery cells 100. The aforementioned first direction can be from left to right or from right to left, and this disclosure does not limit this. The information collection device 300 can also be configured to perform cyclical movement from left to right or from right to left to detect the multiple battery cells 100, and this disclosure does not limit this.

[0109] By moving at least one of the battery cell 100 or the information collection device 300 through the moving device 200, the relative motion between the battery cell 100 and the information collection device 300 can be maintained. During the relative motion, the information collection device 300 can be used to detect the battery cell 100. A small number of information collection devices 300 can be set up to detect multiple battery cells 100. There is no need to detect the battery cells 100 in a fixed position, which can save the cost of setting up information collection devices and improve detection efficiency.

[0110] In this embodiment of the present disclosure, preferably, the moving device 200 drives the battery cell 100 to move along a first direction toward the electrode preparation device 400; the information collection device 300 remains stationary. The stationary information collection device 300 provides a more stable detection environment and higher detection accuracy. The stationary information collection device 300 reduces vibration and errors caused by its own movement, and reduces image blurring or distortion caused by movement. The moving device 200 drives the battery cell 100 to move continuously, while the information collection device 300 does not need to move to detect multiple battery cells 100, enabling continuous operation of the production line and improving production efficiency. Furthermore, the detection of battery cells 100 in an assembly line can be completed with a small number of information collection devices 300, optimizing the equipment layout and reducing production costs.

[0111] As an example, the moving device 200 is a conveyor belt, which drives the battery cell 100 to move at a constant speed along the first direction toward the electrode preparation device 400. Specifically, the conveyor belt is driven by a linear motor, which can precisely and smoothly control the transport of the battery cell 100, reducing transmission errors. The constant speed movement of the battery cell 100 along the first direction by the moving device 200 toward the electrode preparation device 400 provides reliable real-time feedback on the battery cell 100's position, offering reliable data for the next step of preparing the electrode preparation device 400. Maintaining a constant speed during the movement of the battery cell 100 by the moving device 200 avoids errors in the detection results caused by speed changes, improving the accuracy of the detection results.

[0112] Furthermore, the information collection device 300 is fixedly mounted on the equipment using a mounting bracket 500. The mounting bracket 500 securely holds the information collection device 300 to the equipment, reducing the impact of vibrations caused by equipment operation or the external environment on the information collection device 300, thereby ensuring the stability and accuracy of the detection results. Understandably, a small number of information collection devices 300 require only a small number of mounting brackets 500 to be fixedly installed on the equipment, further reducing the equipment's production costs.

[0113] It is worth noting that the solar cell 100 is inspected during the relative movement between the information collection device 300 and the solar cell 100. The solar cell 100 is inspected while moving, enabling a continuous and automated inspection process. This assembly-line inspection method significantly improves inspection efficiency and reduces manual intervention and waiting time. Furthermore, a smaller number of information collection devices 300 are needed to complete the inspection of the solar cell 100, while simplifying the static support structure and effectively reducing production costs.

[0114] In some embodiments, the information collection device 300 includes at least one camera. Further, the number of cameras is 1-20. That is, in such embodiments, the number of cameras can be any value between 1, 5, 10, 15, 20, or 1-20, without specific limitation. The number of cameras is set according to the detection range and detection accuracy of the cameras to achieve feature recognition of the battery cell 100. As an example, the number of cameras is 2.

[0115] As mentioned above, the camera settings of the information collection device 300 can be referred to the description above, and will not be repeated here.

[0116] In some embodiments, the information collection device 300 and the battery cell 100 are arranged opposite each other along a second direction; the second direction is perpendicular to the first direction; during the process of the information collection device 300 collecting relevant information, along the second direction, the orthographic projection of the information collection device 300 and the orthographic projection of the battery cell 100 at least partially overlap. In this embodiment of the present disclosure, the second direction is a vertical direction, and the information collection device 300 and the battery cell 100 are arranged vertically opposite each other. For example, the information collection device 300 is disposed above or below the battery cell 100, the information collection device 300 is fixed, and the battery cell 100 moves continuously below it. During the movement of the battery cell 100, the information collection device 300 detects the battery cell 100. It can be understood that the partially overlapping portion mentioned in this disclosure at least includes the area of ​​the battery cell 100 to be detected. That is, during the process of the information collection device 300 collecting relevant information, the battery cell 100 can be within the range that the information collection device 300 can detect. By ensuring that the battery cell 100 is within the detection range of the information collection device 300 during the process of collecting relevant information by the information collection device 300, the battery cell 100 can be detected by the information collection device 300 in real time during the relative movement between the two, thus avoiding the situation where the battery cell 100 cannot be detected by the information collection device 300 due to unreasonable positioning.

[0117] In some embodiments, the battery cell 100 is provided with a plurality of marker points 600. The marker points 600 serve as positioning references. The information collection device 300 automatically identifies the marker points 600, and the position of the battery cell 100 can be determined based on the position of the marker points 600. This further ensures high-precision alignment during subsequent printing processes. In some embodiments, the marker points 600 are points used to locate the position of the battery cell 100. The marker points 600 can be set to shapes such as circles, ellipses, squares, rectangles, pentagons, straight lines, and irregular lines (e.g., curved lines). Since other impurities may interfere with the detection of the battery cell 100 during the inspection by the information collection device 300, causing unknown impurities to be identified as marker points, the area of ​​the marker points 600 can be set to be larger than the average area of ​​other impurities, or the length and width of the marker points 600 can be set to effectively distinguish other impurities, avoiding misjudgment by the information collection device 300 when identifying the marker points 600.

[0118] The information collection device 300 faces at least one side of the battery cell 100.

[0119] The information collection device 300 faces the surface of the electrode to be printed on the battery cell 100.

[0120] As shown in Figure 4, the solar cell 100 further has a first surface 101 and a second surface 102 disposed opposite to each other in the second direction. It can be understood that the first surface 101 and the second surface 102 can be the light-facing surface (front side of the solar cell 100) and the back-lighting surface (back side of the solar cell 100) of the solar cell 100, respectively. The light-facing surface is the side of the solar cell formed by the solar cell 100 that faces the sun when it is working, and the back-lighting surface is the side of the solar cell formed by the solar cell 100 that faces away from the sun when it is working.

[0121] As shown in Figures 1 and 4, in a back-contact battery, since electrode printing only needs to be performed on the back side of the battery cell 100, multiple marker points 600 of the battery cell 100 are disposed on the back side of the battery cell 100. The information collection device 300 is configured to detect the multiple marker points 600 on the back side of the battery cell 100. The battery cell 100 is positioned with its back side facing the information collection device 300 to enable the information collection device 300 to detect the marker points 600 on the back side of the battery cell 100. As an example, the information collection device 300 may include two information collection devices, namely a first information collection device 301 and a second information collection device 302, which are two cameras used to detect the second surface 102 of the battery cell 100.

[0122] When electrode printing is required on both the front and back of the solar cell 100, multiple marker points 600 can be set on either the first surface 101 or the second surface 102 of the solar cell 100. In this case, the information collection device 300 is configured to detect the multiple marker points 600 facing the first surface 101 or the second surface 102. It is also understandable that marker points 600 can be set on both the first surface 101 and the second surface 102, and information collection devices 300 can be set on both surfaces for detection. As an example, the information collection device 300 may include multiple devices, such as four cameras, with two cameras detecting the first surface 101 and the other two cameras detecting the second surface 102. As yet another example, the information collection device 300 may include five cameras, with two cameras detecting the first surface 101 and the other three cameras detecting the second surface 102.

[0123] In some embodiments, the battery cell 100 and the electrode preparation device 400 are arranged opposite each other along a first direction, which is the relative movement direction of the battery cell 100 and the information collection device 300. The battery cell 100 can be moved along the first direction to the processing area of ​​the electrode preparation device 400 to prepare the electrode.

[0124] Along a third direction, the battery cell 100 has a first edge 103 and a second edge 104 disposed opposite to each other. The third direction is perpendicular to the first direction. In this embodiment of the present disclosure, exemplarily, the first direction can be the width direction of the battery cell 100, and the third direction can be the length direction of the battery cell 100. The plurality of marking points 600 include at least a first set of marking points 601 near the first edge 103 and a second set of marking points 602 near the second edge 104. That is, the plurality of marking points 600 are divided into at least two sets of marking points. The position and size of the battery cell 100 can be accurately determined by the marking points near the edges of the battery cell 100 (the first set of marking points 601 and the second set of marking points 602). These edge marking points 600 serve as reference points, helping the information collection device 300 to more accurately identify the outline and boundaries of the battery cell 100. Specifically, the information collection device 300 includes a first information collection device 301 and a second information collection device 302 arranged opposite each other along a third direction. The first information collection device 301 detects a first set of marker points 601, and the second information collection device 302 detects a second set of marker points 602. The first information collection device 301 and the second information collection device 302 can perform detection work simultaneously, realizing parallel processing, thereby significantly shortening the overall detection time. Furthermore, the two sets of information collection devices 300 detecting two sets of marker points (the first set of marker points 601 and the second set of marker points 602) respectively can significantly reduce the performance requirements of the information collection device 300 and achieve higher accuracy in identifying the marker points. The first information collection device 301 and the second information collection device 302 being arranged opposite each other along a third direction can achieve wider spatial coverage of the solar cell 100 and reduce detection blind spots. By setting a first set of marker points 601 and a second set of marker points 602 on the first edge 103 and the second edge 104 of the battery cell 100 respectively, and setting two information collection devices (first information collection device 301 and second information collection device 302) to detect the two sets of marker points (first set of marker points 601 and second set of marker points 602) respectively, the edge position of the battery cell 100 can be better located and it can be determined whether the battery cell 100 is tilted.

[0125] The number of marker points 600 is at least 3. Understandably, at least 3 marker points 600 are sufficient to determine the position of the battery cell 100. Of course, in other embodiments, the number of marker points 600 may also be 4, 5, 6, etc., and this disclosure does not limit this.

[0126] As shown in Figures 2 and 3, in other embodiments, the plurality of marker points 600 may further include a third group of marker points, a fourth group of marker points, a fifth group of marker points, etc., with each group of marker points 600 arranged linearly along a first direction. The number of marker points 600 in each group may be equal or unequal, and this distribution of marker points 600 is set according to the electrode fabrication process. By setting marker points 600 at different locations, the information collection device 300 can achieve multiple verifications of the battery cell 100. When one group of marker points 600 cannot be detected for some reason (such as obstruction, damage, etc.), another group of marker points 600 can still provide effective detection information, thereby enhancing the reliability of the detection information of the information collection device 300. In addition, if the contour of the battery cell 100 needs to be accurately detected, multiple marker points 600 can be set to accurately determine the contour of the battery cell 100.

[0127] In other embodiments, the multiple marker points 600 may also be randomly distributed on the battery cell 100 without forming a specific distribution feature. The requirement is that all the multiple marker points 600 are within the detection range of the information collection device 300.

[0128] As shown in Figures 1 to 4, multiple marker points 600 are set on the battery cell 100 to mark the battery cell 100 so that the information collection device 300 can detect it accurately. In addition, marker points 600 are set on the first surface 101 or the second surface 102 of the battery cell 100, and the information collection device 300 is set to detect multiple marker points 600 facing the first surface 101 or the second surface 102. This setting method can make multiple marker points 600 detectable by the information collection device 300.

[0129] Furthermore, along a third direction, the battery cell 100 has a first portion including a first edge 103 and a second portion including a second edge 104. A first set of marking points 601 is disposed in the first portion, and a second set of marking points 602 is disposed in the second portion. Along a second direction, the information collection device 300 and the battery cell 100 are disposed opposite each other, and the second direction is perpendicular to the first direction. During the relative movement between the battery cell 100 and the information collection device 300, along the first direction, the orthographic projection of the first information collection device 301 at least partially overlaps with the orthographic projection of the first portion of the battery cell 100, ensuring accurate identification of the first set of marking points 601 by the first information collection device 301. The orthographic projection of the second information collection device 302 at least partially overlaps with the orthographic projection of the second portion of the battery cell 100, ensuring accurate identification of the second set of marking points 602 by the second information collection device 302. In other words, the first information collection device 301 is positioned within the range of the first set of marker points 601 that can be detected during the process of the first information collection device 301 collecting relevant information of the battery cell 100, and the second information collection device 302 is positioned within the range of the second set of marker points 602 that can be detected during the process of the second information collection device 302 collecting relevant information of the battery cell 100.

[0130] As described above, the camera settings of the first information collection device 301 and the second information collection device 302 can be referred to the description above, and will not be repeated here.

[0131] Preferably, the information collection device 300 is a line scan camera. The line scan camera achieves continuous and rapid imaging of the continuously moving battery cell 100 by scanning the target object line by line. This imaging method is very suitable for the continuous inspection needs of production lines. Since the battery cell 100 moves at a constant speed, the line scan camera can maintain a scanning speed that matches the speed of the battery cell 100, thereby achieving real-time and efficient inspection of the battery cell 100.

[0132] As shown in Figure 5, in some embodiments, a control method for an electrode preparation device is also provided. This method is executed by a control device, which can be the control system of the device. The control device is the "brain" of the entire device, responsible for controlling its movement and operation. It can precisely control the position adjustment of the electrode preparation device 400 according to preset programs and parameters, ensuring the stability and consistency of the printing process. The control device is configured to perform the following steps:

[0133] During the relative movement between the information collection device 300 and the battery cell 100, relevant information of the battery cell 100 is collected;

[0134] Based on the collected relevant information, the control electrode preparation apparatus 400 performs electrode preparation on the battery cell 100.

[0135] In some embodiments, the method specifically includes the following steps:

[0136] S10. Determine the position of the marker point 600 on the battery cell 100 based on the relevant information collected by the information collection device 300;

[0137] S20. Compare the detected position of the marker point 600 with the preset position of the marker point 600 of the battery cell 100;

[0138] S30. Based on the comparison results, the electrode preparation device 400 is controlled to prepare electrodes on the battery cell 100.

[0139] Based on the comparison results, controlling the electrode preparation device 400 to prepare electrodes on the battery cell 100 specifically includes: adjusting the position of the electrode preparation device 400 based on the comparison results, and controlling the electrode preparation device 400 to prepare electrodes on the battery cell 100.

[0140] This disclosure determines the position of the marker point on the battery cell 100 based on the relevant information collected by the information collection device 300, compares the detected position of the marker point with the preset position of the marker point on the battery cell, and controls the electrode preparation device 400 to prepare electrodes on the battery cell 100 based on the comparison result. The electrode preparation strategy can be adjusted in real time based on the detection result of the marker point on the battery cell 100 by the information collection device 300.

[0141] Specifically, the control device controls the movement of the moving device 200 to move at least one of the battery cell 100 or the information collection device 300, so that there is relative movement between the information collection device 300 and the battery cell 100. As described above, the specific movement of the moving device 200 and the battery cell 100 can be referred to the example in the electrode preparation equipment described above, and will not be repeated here.

[0142] When the mobile device 200 moves the battery cell 100 along the first direction, the information collection device 300 remains stationary. That is, the information collection device 300 is stationary but the battery cell 100 moves, so that there is relative motion between the two. This allows the information collection device 300 to detect the battery cell 100 during the movement of the battery cell 100, thereby improving the accuracy of the detection.

[0143] As mentioned above, the camera settings of the information collection device 300 can be referred to the description above, and will not be repeated here.

[0144] Specifically, the moving device 200 is a conveyor belt. Controlling the moving device 200 to move the battery cell 100 at a constant speed, the moving device 200 moves the battery cell 100 close to the electrode preparation device 400 at a constant speed along the first direction, and can provide reliable position information of the battery cell 100 in real time, providing reliable data for the next step of preparing the electrode preparation device 400.

[0145] The information collection device 300 identifies the marker points 600 on the battery cell 100, and then compares the coordinate information of the marker points 600 on each battery cell 100 with the preset coordinate information of the marker points 600 on each battery cell 100. This determines the deviation between the actual position and the preset position of the battery cell 100. Based on the comparison result, the position of the electrode preparation device 400 is adjusted. In other words, the position of the electrode preparation device 400 is adjusted and compensated based on the deviation between the actual position and the preset position of the battery cell 100. After the position of the electrode preparation device 400 is corrected, it is controlled to prepare electrodes on the battery cell 100. Specifically, the position correction of the electrode preparation device 400 includes adjusting the lateral coordinates, longitudinal coordinates, and rotation angle of the electrode preparation device 400. The lateral and longitudinal coordinates ensure that the printed content (e.g., electrode paste) can be accurately placed at the predetermined position on the battery cell 100, and the rotation angle guides the electrode preparation device 400 to print in the correct direction, ensuring that the printed content is correctly aligned with the predetermined position of the battery cell 100. For example, when the solar cell 100 shifts in any one or more directions, including the lateral and longitudinal directions, the position of the electrode preparation device 400 needs to be adjusted based on the detection values ​​from the information collection device 300, as shown in the example below. It should be understood that in the following example, the coordinates of the solar cell 100 are represented by the coordinates of the marker point 600. The coordinates of the marker point 600 are set to three-dimensional coordinates. Alternatively, the coordinates of the marker point 600 can be set to two-dimensional coordinates; this is not a limitation here.

[0146] As an example, the coordinates of marker point 600 are three-dimensional coordinates (X,Y,Z), where X is the position coordinate of marker point 600 in the horizontal direction (horizontal direction, horizontal axis), Y is the position coordinate of marker point 600 in the vertical direction (vertical direction, vertical axis), and Z is the position coordinate of marker point 600 in the vertical direction (vertical direction, vertical axis).

[0147] In some embodiments, the battery cell 100 is offset in the longitudinal direction:

[0148] For example, when the information collection device 300 detects the actual position coordinates of the battery cell 100 based on the marker points 600 at the four corners of the edge of the battery cell 100 as (0, 1, 0), (1, 1, 0), (0, 2, 0), (1, 2, 0), and the preset position coordinates of the battery cell 100 obtained from the marker points 600 at the four corners of the edge of the battery cell 100 are (0, 0, 0), (1, 0, 0), (0, 1, 0), (1, 1, 0), this indicates that the actual position of the battery cell 100 has shifted longitudinally relative to the preset position of the battery cell 100. At this time, the control device controls the electrode preparation device 400 to move one unit upward in the longitudinal direction to ensure that the printed content (e.g., electrode paste) can be accurately placed at the predetermined position on the battery cell 100.

[0149] In some embodiments, the battery cell 100 is offset in the lateral direction:

[0150] For example, when the information collection device 300 detects the actual position coordinates of the battery cell 100 based on the marker points 600 at the four corners of the battery cell 100 as (1, 0, 0), (2, 0, 0), (1, 1, 0), (2, 1, 0), and the preset position coordinates of the battery cell 100 obtained from the marker points 600 at the four corners of the battery cell 100 are (0, 0, 0), (1, 0, 0), (0, 1, 0), (1, 1, 0), this indicates that the actual position of the battery cell 100 has shifted laterally relative to the preset position of the battery cell 100. At this time, the control device controls the electrode preparation device 400 to move one unit to the right in the lateral direction to ensure that the printed content (e.g., electrode paste) can be accurately placed at the predetermined position on the battery cell 100.

[0151] The solar cell 100 experiences simultaneous displacement in both the lateral and longitudinal directions:

[0152] For example, when the information collection device 300 detects the actual position coordinates of the battery cell 100 based on the marker points 600 at the four corners of the battery cell 100, and the coordinates are (0, 0, 0), The preset position coordinates of the battery cell 100 obtained from the marker points 600 at the four corners of the preset edge are (0, 0, 0), (1, 0, 0), (0, 1, 0), and (1, 1, 0). This indicates that the actual position of the battery cell 100 has shifted laterally and longitudinally relative to the preset position. At this time, the control device controls the printing direction of the electrode preparation device 400 to rotate 45 degrees clockwise to ensure that the printed content (e.g., electrode paste) can be accurately placed at the predetermined position on the battery cell 100. This disclosure uses the information collection device 300 to detect the position of the marker points 600 on the battery cell 100 and compares the detected position of the marker points 600 with the preset position of the battery cell marker points 600. Then, the control device 400 adjusts its position according to the comparison result to prepare electrodes on the battery cell 100, achieving high-precision printing of electrodes. The printing process is efficient and accurate, and can adapt to the printing needs of battery cells 100 at different positions. In another example, when the information collection device 300 detects the actual position coordinates of the battery cell 100 based on the marker points 600 at the four corners of the edge of the battery cell 100 as (-1, -1, 0), (0, -1, 0), (-1, 0, 0), (0, 0, 0), and the preset position coordinates of the battery cell 100 obtained from the marker points 600 at the four corners of the edge of the battery cell 100 are (0, 0, 0), (1, 0, 0), (0, 1, 0), (1, 1, 0), this indicates that the actual position of the battery cell 100 has shifted in both the lateral and longitudinal directions relative to the preset position of the battery cell 100. At this time, the control device controls the electrode preparation device 400 to move one unit to the left in the lateral direction and one unit downward in the longitudinal direction to ensure that the printed content (e.g., electrode paste) can be accurately placed at the predetermined position on the battery cell 100.

[0153] In the description of this specification, references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0154] The above description is merely a preferred embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

[0155] Furthermore, any process or method description in the flowchart or otherwise herein may be understood as representing a module, segment, or portion of code comprising one or more executable instructions for performing a particular logical function or process, and the scope of preferred embodiments of this disclosure includes additional executions in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order depending on the function involved, as will be understood by those skilled in the art to which embodiments of this disclosure pertain.

[0156] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for performing logical functions, which can be specifically executed on any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus or device (such as a computer-based system, a processor-included system or other system that can fetch and execute instructions from, an instruction execution system, apparatus or device).

[0157] For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit a program for use in or in conjunction with an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Furthermore, a computer-readable medium can even be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optical scanning of the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0158] It should be understood that various parts of this disclosure can be performed using hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be performed using software or firmware stored in memory and executed by a suitable instruction execution system. For example, if performed in hardware, as in another embodiment, it can be performed using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for performing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0159] Those skilled in the art will understand that all or part of the steps of the above-described implementation method can be performed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium, and when executed, the program includes one or a combination of the steps of the method embodiments.

[0160] The storage medium mentioned above may be a read-only memory, a disk, or an optical disk, etc. Although embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present disclosure. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present disclosure.

Claims

1. An electrode fabrication apparatus, wherein, include: Battery cells; An information collection device is provided, wherein there is relative movement between the information collection device and the battery cell, and the information collection device collects relevant information of the battery cell during the relative movement with the battery cell; and An electrode fabrication apparatus is configured to fabricate electrodes on the solar cell.

2. The device as claimed in claim 1, wherein, The battery cell and the electrode fabrication device are arranged opposite to each other along a first direction; Along the first direction, the information collection device is disposed between the battery cell and the electrode fabrication device; or Along the first direction, the battery cell is disposed between the information collection device and the electrode preparation device.

3. The device as claimed in claim 1, wherein, The device also includes a moving device that moves at least one of the battery cell or the information collection device, so that there is relative motion between the information collection device and the battery cell.

4. The device as claimed in claim 1, wherein, During the relative movement between the information collection device and the battery cell, the information collection device detects the battery cell.

5. The device as described in claim 3, wherein, The mobile device drives the battery cell to move along a first direction toward the electrode preparation device; the information collection device remains stationary.

6. The device as claimed in claim 5, wherein, The moving device is a conveyor belt, which drives the battery cell to move at a constant speed along the first direction toward the electrode preparation device.

7. The device as claimed in claim 1, wherein, The information collection device includes at least one camera.

8. The device as claimed in claim 7, wherein, The number of cameras is 1-20.

9. The device as claimed in claim 8, wherein, The number of cameras is 2.

10. The device as claimed in claim 2, wherein, During the process of the information collection device collecting the relevant information, the battery cell is within the range that the information collection device can detect.

11. The device as claimed in claim 2, wherein, The information collection device and the battery cell are arranged opposite to each other along the second direction; The second direction is perpendicular to the first direction; During the process of the information collection device collecting the relevant information, along the second direction, the orthographic projection of the information collection device at least partially overlaps with the orthographic projection of the battery cell.

12. The device as claimed in claim 1, wherein, The battery cell has multiple marking points.

13. The device as claimed in claim 12, wherein, The battery cell has a first surface and a second surface that are disposed opposite to each other in a second direction. The plurality of marking points are disposed on the first surface or the second surface. The information collection device is configured to detect the plurality of marking points facing the first surface or the second surface. The first surface is the front side of the battery cell, and the second surface is the back side of the battery cell.

14. The device as claimed in claim 12, wherein, The battery cell and the electrode fabrication device are arranged opposite to each other along a first direction; Along a third direction, the battery cell has a first edge and a second edge disposed opposite to each other, the third direction being perpendicular to the first direction; The plurality of marker points include at least a first set of marker points near the first edge and a second set of marker points near the second edge.

15. The device as claimed in claim 14, wherein, The information collection device includes a first information collection device and a second information collection device arranged opposite to each other along the third direction; The first information collection device detects the first set of marker points; The second information collection device detects the second set of marker points.

16. The device as claimed in claim 15, wherein, Along the third direction, the battery cell has a first portion including the first edge and a second portion including the second edge; Along a second direction, the information collection device and the battery cell are arranged opposite to each other, and the second direction is perpendicular to the first direction; During the process of the information collection device collecting the relevant information, along the second direction, The orthographic projection of the first information collection device at least partially overlaps with the orthographic projection of the first portion of the battery cell; The orthographic projection of the second information collection device at least partially overlaps with the orthographic projection of the second part of the battery cell.

17. The device as claimed in claim 15, wherein, The first information collection device is positioned within the range that can detect the first set of marker points during the process of the first information collection device collecting relevant information about the battery cell, and the second information collection device is positioned within the range that can detect the second set of marker points during the process of the second information collection device collecting relevant information about the battery cell.

18. The device according to any one of claims 1-17, wherein, The information collection device is a line scan camera.

19. The device as claimed in claim 18, wherein, The device also includes a mounting bracket for mounting the information collection device.

20. A type of battery cell, wherein, The battery cell is prepared using the apparatus described in any one of claims 1-19.

21. A component, wherein, Includes the battery cell as described in claim 20.

22. A control method for an electrode preparation apparatus, wherein, include: During the relative movement between the information collection device and the battery cell, relevant information about the battery cell is collected; Based on the collected relevant information, the electrode fabrication apparatus is controlled to fabricate electrodes on the battery cell.

23. The method of claim 22, wherein, The method further includes: The location of the marker point on the battery cell is determined based on the relevant information collected by the information collection device; The detected position of the marker point is compared with the preset position of the marker point of the battery cell; Based on the comparison results, the electrode preparation device is controlled to prepare electrodes on the battery cell.

24. The method of claim 23, wherein, The electrode fabrication device, based on the comparison results, performs electrode fabrication on the battery cell, including: Based on the comparison results, the position of the electrode preparation device is adjusted, and the electrode preparation device is controlled to prepare electrodes on the battery cell.

25. The method of claim 23, wherein, The method further includes: The mobile device is controlled to move so as to move at least one of the battery cell or the information collection device, so that there is relative motion between the information collection device and the battery cell.

26. The method of claim 23, wherein, The step of comparing the detected position of the marker point with the preset position of the marker point of the battery cell specifically includes: The coordinate information of the identification point of each of the battery cells is compared with the preset coordinate information of the identification point of each of the battery cells.

27. The method of claim 25, wherein, The moving device is a conveyor belt, and the movement of the moving device is controlled to drive the battery cells to move at a constant speed.

28. The method according to any one of claims 22-27, wherein, The information collection device is a line scan camera.

29. A solar cell manufacturing system, wherein, Includes the electrode preparation apparatus according to any one of claims 1-19, the battery cell according to claim 20, and the component according to claim 21.

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