Passivation equipment

Abstract

The utility model provides passivation equipment which is used for passivating cutting surfaces of at least two sub to-be-passivated pieces, the two sub to-be-passivated pieces are formed by slitting a piece to be passivated, and at least two oppositely arranged storage devices of the passivation equipment are arranged in one-to-one correspondence with the at least two sub to-be-passivated pieces. The storage device is provided with a storage cavity and a storage opening which communicate with each other, the storage cavity is used for storing the sub-to-be-passivated part, and the storage opening is used for communicating the cutting face with the outside; the passivation device is arranged on one side of the storage device, and the passivation device is provided with a passivation cavity used for passivating the cutting face; the containing station is arranged in the passivation cavity, the containing station comprises at least two sub-containing stations, and each sub-containing station is used for containing a storage device; and the at least two sub-containing stations are oppositely arranged, so that the at least two cutting surfaces are oppositely arranged. According to the utility model, the problem of low passivation efficiency of the half cell in the prior art is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic cell manufacturing technical field, specifically, relate to a kind of passivation equipment. BACKGROUND

[0002] At present, in the research process of solar photovoltaic cell, it is found that the internal power loss of photovoltaic module after the whole piece of battery is assembled is higher, compared with the photovoltaic module prepared by the whole piece of battery, the internal loss current is halved by cutting the whole piece of battery into half piece of battery by laser cutting, and the corresponding loss power is reduced to one fourth of the power loss of the whole piece of battery. Therefore, the power of the photovoltaic module prepared by the half piece of battery is about 10% higher than that of the photovoltaic module prepared by the whole piece of battery. After laser cutting, the cutting surface of the half piece of battery has many suspended bonds and defect forming recombination centers, which reduces the lifetime of carriers and the photoelectric conversion efficiency of solar cells. Therefore, chemical passivation and field effect passivation need to be performed on the cutting surface of the half piece of battery to reduce the edge defect recombination center and improve the photoelectric conversion efficiency of solar cells.

[0003] In the prior art, the whole piece of battery is cut into two half pieces of battery, the stacking device stacks the cutting surfaces of the two half pieces of battery uniformly after stacking them in the magazine, then the magazine is rotated to ensure that the cutting surfaces are upward, and then the magazine is placed in the carrier boat, the carrier boat is conveyed to the passivation cavity by the conveying device for passivation, and after passivation, the staff takes out the magazine from the carrier boat and conveys it to the test center for testing, thereby completing the passivation of the cutting surface of the half piece of battery.

[0004] However, when the stacking device arranges the two half pieces of battery, one of the half pieces of battery needs to be rotated first to ensure that the cutting surfaces of the two half pieces of battery are in the same direction, and then the half pieces of battery are placed in the magazine, so that the operation steps of the staff are more complicated, the storage efficiency of the half piece of battery is reduced, and the passivation efficiency of the half piece of battery is reduced. At the same time, the equipment also needs to rotate the magazine and place it on the carrier boat to ensure that the cutting surface to be passivated is upward, so as to realize the passivation of the cutting surface, which also increases the operation steps of the equipment and further reduces the passivation efficiency of the half piece of battery. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a kind of passivation equipment to solve the problem of low passivation efficiency of half piece of battery in prior art.

[0006] In order to achieve the above object, the utility model provides a passivation equipment for passivating cutting surfaces of at least two sub-passivation pieces, the two sub-passivation pieces are formed by slitting a passivation piece, and the passivation equipment comprises: at least two oppositely arranged storage devices, which are arranged one by one in correspondence with the at least two sub-passivation pieces, the storage device has a storage cavity and a storage opening which are in communication with each other, the storage cavity is used for storing the sub-passivation piece, and the storage opening is used for communicating the cutting surface with the outside world; a passivation device is arranged on one side of the storage device, the passivation device has a passivation cavity for passivating the cutting surface; a containing station is arranged in the passivation cavity, and the containing station comprises at least two sub-containing stations, each sub-containing station is used for containing the storage device; wherein the at least two sub-containing stations are oppositely arranged so that the at least two cutting surfaces are oppositely arranged.

[0007] Further, the passivation equipment further comprises at least two oppositely arranged conveying devices, the conveying device is arranged between the storage device and the sub-passivation piece, so as to convey the sub-passivation piece into the storage cavity.

[0008] Further, the passivation device has a feeding port, the feeding port is in communication with the passivation cavity, and the passivation equipment further comprises a conveying device, the conveying device is arranged between the storage device and the passivation device, so as to sequentially and orderly convey the storage device to the feeding port.

[0009] Further, the conveying device comprises: at least two oppositely arranged conveying assemblies, the at least two conveying assemblies are arranged one by one in correspondence with the at least two storage devices, so as to convey the storage device; a transfer assembly, one end of the transfer assembly is connected with the passivation device, so as to transfer the storage device to the feeding port; wherein the at least two conveying assemblies are alternately connected on the end of the transfer assembly away from the passivation device, so as to alternately convey the at least two storage devices to the transfer assembly.

[0010] Further, the conveying device further comprises: a stop assembly arranged on the conveying assembly, the stop assembly has a stop state and a reset state, when the stop assembly is in the stop state, the stop assembly is in contact with the storage device, so as to prevent the conveying of the storage device; when the stop assembly is in the reset state, the stop assembly is separated from the storage device, so as to restore the conveying of the storage device.

[0011] Further, the passivation device comprises a bottom plate, the containing stations are arranged on the bottom plate, the containing stations are multiple, the multiple containing stations are arranged at intervals along a first preset direction, a containing space is formed around between at least two sub-containing stations, the passivation device further comprises: a conveying device arranged on the bottom plate and located in the containing space, the conveying device conveying the storage devices along the first preset direction; a dispensing device arranged on the conveying device, two ends of the dispensing device extending into two oppositely arranged sub-containing stations respectively, the dispensing device is multiple, the multiple dispensing devices are arranged one by one corresponding to the multiple containing stations, so as to dispense the storage devices on the conveying device into the sub-containing stations; a position detection device arranged on the sub-containing station to detect the position of the storage device; a control device connected with the detection device and the dispensing device, the control device controlling the opening of the dispensing device according to the detection data of the position detection device; wherein the first preset direction is parallel to the length direction of the bottom plate or the first preset direction is parallel to the width direction of the bottom plate.

[0012] Further, the passivation device further comprises a testing device arranged on one side of the passivation device to detect the cut surface after passivation.

[0013] Further, the passivation device further has a discharge port, and the passivation device further comprises a transmission device arranged between the passivation device and the testing device to transmit the storage device at the discharge port to the testing device.

[0014] Further, the storage device further has a storage inlet in communication with the storage cavity for placing the sub-passivation parts; the storage device further comprises a cover plate for covering the storage inlet.

[0015] Further, the passivation device further comprises: a gas supply assembly arranged in the passivation cavity to provide multiple gases into the passivation cavity; a heat supply assembly arranged in the passivation cavity to provide heat into the passivation cavity; a conductive assembly arranged in the passivation cavity, the conductive assembly comprising at least two oppositely arranged conductive structures, a conductive space being formed around between the at least two conductive structures to ionize the process gas in the gas in the conductive space; an exhaust assembly arranged in the passivation cavity to extract the gas in the passivation cavity.

[0016] The technical scheme of the utility model is used for passivation equipment for passivating cutting surfaces of at least two sub-pieces to be passivated, the two sub-pieces to be passivated are formed by slitting one piece to be passivated, at least two oppositely arranged storage devices of the passivation equipment are arranged in one-to-one correspondence with the at least two sub-pieces to be passivated, the storage device has a storage cavity and a storage opening in communication with each other, the storage cavity is used for storing the sub-pieces to be passivated, and the storage opening is used for communicating the cutting surface with the outside. The passivation device is arranged on one side of the storage device, and the passivation device has a passivation cavity for passivating the cutting surface. The containing station is arranged in the passivation cavity, and the containing station includes at least two sub-containing stations, each of which is used for containing the storage device. The at least two sub-containing stations are oppositely arranged to allow the at least two cutting surfaces to be oppositely arranged. In this way, after the whole battery is cut into two half batteries by laser, the two half batteries are respectively stored in the two oppositely arranged storage devices, thereby avoiding the repositioning and direction adjustment of one of the half batteries, simplifying the operation steps of the staff, improving the storage efficiency of the half batteries, and reducing the risk of scratches and hidden cracks of the half batteries. Then, when the storage cavities of the two storage devices are full, the two storage devices enter the containing station, the cutting surface of the half battery communicates with the passivation cavity through the storage opening, and the passivation of the cutting surface is ensured. At the same time, the above-mentioned arrangement of the sub-containing station allows the cutting surfaces of the two half batteries to be oppositely arranged face to face, which not only ensures the uniform passivation of the cutting surface, but also avoids the adjustment of rotating the cutting surface upward, further simplifies the operation steps of the staff, improves the passivation efficiency of the half battery, and solves the problem of low passivation efficiency of the half battery in the prior art. At the same time, the above-mentioned arrangement allows the two half batteries to be cut, stored in the storage device, and passivated without additional direction adjustment operation, thereby reducing the work efficiency of the staff and improving the passivation efficiency of the half battery. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the application, and together with the description of the application, serve to explain the application. In the drawings:

[0018] Figure 1 Fig. 1 shows the overall structure of an embodiment of the passivation equipment according to the utility model; and

[0019] Figure 2 Fig. 2 shows a partial structure of an embodiment of the passivation equipment according to the utility model;

[0020] Figure 3 Fig. 3 shows a partial structure of an embodiment of the passivation equipment according to the utility model;

[0021] Figure 4Part structure schematic view of the passivation equipment in the embodiment of the utility model is shown.

[0022] Figure 5 Part structure schematic view of the passivation equipment in the embodiment of the utility model is shown. Figure 1 Structure schematic view of the storage device of the passivation equipment in the embodiment of the utility model is shown.

[0023] Among them, the above-mentioned drawing includes the following sign:

[0024] 1, sub to be passivated piece;

[0025] 10, storage device;11, storage cavity;12, storage opening;13, storage import;14, cover plate;

[0026] 20, passivation device;21, passivation cavity;22, feeding port;23, discharge port;24, gas supply assembly;25, conductive structure;26, exhaust assembly;

[0027] 30, containing station;31, sub containing station;

[0028] 40, conveying device;

[0029] 50, conveying device;51, conveying assembly;52, transfer assembly;53, stopper assembly;

[0030] 60, conveying device;

[0031] 70, dispensing device;

[0032] 80, testing device;

[0033] 90, transmission device. DETAILED DESCRIPTION

[0034] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0035] In order to solve the problem of low passivation efficiency of half-cell in the prior art, the present application provides a passivation equipment.

[0036] As Figures 1 to 5As shown, the passivation device is used for passivating cutting surfaces of at least two sub-wafer pieces 1, the two sub-wafer pieces 1 are formed by slitting a wafer piece, and the passivation device comprises at least two oppositely arranged storage devices 10, a passivation device 20 and a containing station 30. The at least two oppositely arranged storage devices 10 are arranged in one-to-one correspondence with the at least two sub-wafer pieces 1, the storage device 10 has a storage cavity 11 and a storage opening 12 which are in communication with each other, the storage cavity 11 is used for storing the sub-wafer piece 1, and the storage opening 12 is used for communicating the cutting surface with the outside. The passivation device 20 is arranged on one side of the storage device 10, and the passivation device 20 has a passivation cavity 21 for passivating the cutting surface. The containing station 30 is arranged in the passivation cavity 21, and the containing station 30 comprises at least two sub-containing stations 31, each of which is used for containing the storage device 10. Among them, the at least two sub-containing stations 31 are oppositely arranged, so that the at least two cutting surfaces are oppositely arranged.

[0037] The technical scheme is applied, the passivation equipment is used for passivating cutting surfaces of at least two sub-passivation pieces 1, the two sub-passivation pieces 1 are formed by slitting one passivation piece, at least two oppositely arranged storage devices 10 of the passivation equipment are arranged in one-to-one correspondence with the at least two sub-passivation pieces 1, the storage device 10 has a storage cavity 11 and a storage opening 12 that are in communication with each other, the storage cavity 11 is used for storing the sub-passivation piece 1, and the storage opening 12 is used for communicating the cutting surface with the outside. The passivation device 20 is arranged on one side of the storage device 10, and the passivation device 20 has a passivation cavity 21 for passivating the cutting surface. The containing station 30 is arranged in the passivation cavity 21, and the containing station 30 includes at least two sub-containing stations 31, each of which is used for containing the storage device 10. Among them, the at least two sub-containing stations 31 are oppositely arranged to make the at least two cutting surfaces oppositely arranged. In this way, when the whole piece of battery is cut into two half pieces of battery by laser, the two half pieces of battery are respectively stored in the two oppositely arranged storage devices 10, avoiding the repositioning and direction adjustment of one of the half pieces of battery, simplifying the operation steps of the workers, improving the storage efficiency of the half pieces of battery, and reducing the risk of scratches and hidden cracks of the half pieces of battery. Then, when the storage cavities 11 of the two storage devices 10 are full, the two storage devices 10 enter the containing station 30, the cutting surface of the half piece of battery is communicated with the passivation cavity 21 through the storage opening 12, and the passivation of the cutting surface is ensured. At the same time, the above-mentioned arrangement of the sub-containing station 31 enables the cutting surfaces of the two half pieces of battery to be oppositely arranged face to face, which not only ensures the uniform passivation of the cutting surface, but also avoids the adjustment of rotating the cutting surface upward, further simplifies the operation steps of the workers, improves the passivation efficiency of the half pieces of battery, and solves the problem of low passivation efficiency of the half pieces of battery in the prior art. At the same time, the above-mentioned arrangement enables the two half pieces of battery to be cut, stored in the storage device 10, and passivated without additional direction adjustment operation, which reduces the work efficiency of the workers and improves the passivation efficiency of the half pieces of battery.

[0038] In the embodiment, the passivation piece is a whole piece of battery.

[0039] Specifically, the whole piece of battery is cut by a laser cutting machine.

[0040] In the embodiment, the sub-passivation piece 1 is a half piece of battery.

[0041] In the embodiment, the whole piece of battery is multiple, and the multiple whole pieces of battery are cut into multiple half pieces of battery and stored in the storage device 10.

[0042] In the embodiment, the number of the storage devices 10 is eight.

[0043] It should be noted that the number of storage devices 10 is not limited to this, and can be adjusted according to the working conditions and use requirements. Optionally, the number of storage devices 10 is four, or six, or eight, or nine, or more.

[0044] As shown in Figure 1 and Figure 2 , the passivation device further comprises at least two oppositely arranged conveying devices 40, which are arranged between the storage device 10 and the sub-passivation piece 1 to convey the sub-passivation piece 1 into the storage cavity 11. In this way, after the whole battery is cut into two half batteries by laser, the two half batteries enter two oppositely arranged conveying devices 40 respectively, and the two conveying devices 40 convey the two half batteries into two storage devices 10 respectively, realizing the smoothness of conveying the half battery to the storage device 10. At the same time, since the conveying device 40 directly conveys the two half batteries after cutting, the two half batteries are always kept in the state after cutting, that is, the cutting surfaces of the two half batteries are always oppositely arranged, without the need to adjust the half battery, ensuring the conveying efficiency of the half battery.

[0045] In this embodiment, the conveying device 40 further comprises a suction cup, which directly sucks the half battery into the storage cavity 11 after the conveying device 40 conveys the half battery to the position of the storage device 10. In this process, the cutting surfaces of the two half batteries are always oppositely arranged.

[0046] In this embodiment, the number of conveying devices 40 is two.

[0047] It should be noted that the number of conveying devices 40 is not limited to this, and can be adjusted according to the working conditions and use requirements. Optionally, the number of conveying devices 40 is three, or four, or six, or eight, or more.

[0048] As shown in Figures 1 to 4 , the passivation device 20 has a feeding port 22 which communicates with the passivation cavity 21, and the passivation device further comprises a conveying device 50 arranged between the storage device 10 and the passivation device 20 to sequentially and orderly convey the storage device 10 to the feeding port 22. In this way, the storage device 10 is conveyed to the feeding port 22 by the conveying device 50 and then conveyed into the passivation cavity 21 of the passivation device 20 through the feeding port 22, ensuring the continuity of conveying the storage device 10. At the same time, the conveying device 50 can sequentially and orderly convey the storage device 10, which not only ensures the continuous conveying of the storage device 10 to the feeding port 22, but also ensures the conveying accuracy of the storage device 10, avoiding the situation that the half battery cannot be passivated or cannot be completely passivated due to the disorderly conveying of the storage device 10, improving the conveying reliability of the storage device 10 and further ensuring the passivation efficiency and reliability of the half battery.

[0049] As shown in Figure 1 and Figure 2 , the conveying device 50 comprises at least two oppositely arranged conveying assemblies 51 and a transfer assembly 52. The at least two conveying assemblies 51 are arranged in one-to-one correspondence with the at least two storage devices 10 for conveying the storage devices 10. One end of the transfer assembly 52 is connected with the passivation device 20 for transferring the storage devices 10 to the feeding port 22. Among them, the at least two conveying assemblies 51 are alternately connected to the end of the transfer assembly 52 away from the passivation device 20 for alternately conveying the at least two storage devices 10 to the transfer assembly 52. In this way, the two conveying assemblies 51 arranged oppositely can respectively convey the storage devices 10 corresponding thereto, so that the two storage devices 10 can be conveyed at the same time, realizing the parallel processing capability of the conveying device 50 and improving the conveying efficiency of the conveying device 50. At the same time, the two conveying assemblies 51 are alternately connected with the transfer assembly 52, realizing the orderly and alternate conveying of the storage devices 10, so that the storage devices 10 can be conveyed to the feeding port 22 of the passivation device 20 in a predetermined order, preparing for the subsequent passivation of the half-battery and improving the conveying reliability and accuracy of the storage devices 10 and the passivation efficiency of the half-battery.

[0050] In the embodiment, the number of the conveying assemblies 51 is two.

[0051] It should be noted that the number of the conveying assemblies 51 is not limited to this, and can be adjusted according to the working conditions and use requirements. Optionally, the number of the conveying assemblies 51 is three, or four, or six, or eight, or more.

[0052] In the embodiment, one of the two conveying assemblies 51 is connected with the transfer assembly 52 for conveying the storage devices 10 to the transfer assembly 52, and in this process, the other conveying assembly 51 is not connected with the transfer assembly 52; when the conveying assembly 51 connected with the transfer assembly 52 is separated from the transfer assembly 52, the other conveying assembly 51 is connected with the transfer assembly 52 for conveying the storage devices 10 to the transfer assembly 52.

[0053] As shown in Figure 1 and Figure 2As shown, the conveying device 50 further comprises a stop component 53. The stop component 53 is arranged on the conveying component 51, and the stop component 53 has a stop state and a reset state. When the stop component 53 is in the stop state, the stop component 53 is in contact with the storage device 10 to prevent the conveying of the storage device 10. When the stop component 53 is in the reset state, the stop component 53 is separated from the storage device 10 to restore the conveying of the storage device 10. In this way, the stop component 53 can precisely stop the storage device 10 on one hand, so as to prevent the unexpected movement of the storage device 10 and ensure the conveying reliability of the storage device 10. On the other hand, the stop component 53 can release the stop of the storage device 10 to ensure the continuous conveying of the storage device 10. The above arrangement realizes the adjustable conveying of the storage device 10.

[0054] In the embodiment, the conveying device 50 further comprises a position detection component and a control device. The position detection component is arranged on the conveying component 51 and transmits the detection result to the control device. The control device controls the stop component 53 to switch between the stop state and the reset state according to the detection result. Meanwhile, the control device can also control the conveying component 51 to connect with the transfer component 52.

[0055] Specifically, the position detection component is one of a distance sensor, an ultrasonic sensor, a visual sensor and an infrared sensor.

[0056] Specifically, when the storage device 10 on one of the conveying components 51 moves to the position of the stop component 53, the control device controls the stop component 53 to stop the storage device 10, so as to prevent the continuous movement of the storage device 10. At this time, the control device controls the conveying component 51 to move to the transfer component 52 and connect with the transfer component 52. After the position detection component detects that the conveying component 51 is connected with the transfer component 52, the control device controls the stop component 53 to reset, so that the storage device 10 is conveyed from the conveying component 51 to the transfer component 52 and then conveyed to the passivation device 20 through the transfer component 52. Then, the control device controls the conveying component 51 to separate from the transfer component 52. Similarly, the other conveying component 51 is connected with the transfer component 52, and the storage device 10 on the other conveying component 51 is conveyed to the transfer component 52. In this way, the storage device 10 does not need to be adjusted in direction in the whole process, which improves the conveying efficiency of the storage device 10.

[0057] As shown in FIG. 1, the conveying device 50 comprises a conveying component 51, a transfer component 52 and a passivation device 20. The conveying component 51 is arranged on the conveying device 50, and the conveying component 51 comprises a plurality of conveying components 51. The transfer component 52 is arranged on the conveying device 50, and the transfer component 52 is connected with the conveying component 51. The passivation device 20 is arranged on the conveying device 50, and the passivation device 20 is connected with the transfer component 52. Figure 3 and Figure 4As shown, the passivation device 20 comprises a bottom plate, and a plurality of accommodation stations 30 are arranged on the bottom plate, the plurality of accommodation stations 30 are arranged in a first preset direction, and an accommodation space is formed around at least two sub-accommodation stations 31. The passivation device further comprises a conveying device 60, a distribution device 70, a position detection device, and a control device. The conveying device 60 is arranged on the bottom plate and located in the accommodation space, and the conveying device 60 conveys the storage device 10 along the first preset direction. The distribution device 70 is arranged on the conveying device 60, and both ends of the distribution device 70 extend into two oppositely arranged sub-accommodation stations 31, respectively. The distribution device 70 is in one-to-one correspondence with the plurality of accommodation stations 30, so as to distribute the storage device 10 on the conveying device 60 into the sub-accommodation station 31. The position detection device is arranged on the sub-accommodation station 31, so as to detect the position of the storage device 10. The control device is connected with the detection device and the distribution device 70, and controls the opening of the distribution device 70 according to the detection data of the position detection device. The first preset direction is parallel to the length direction of the bottom plate or the first preset direction is parallel to the width direction of the bottom plate. In this way, when the storage device 10 on the transfer assembly 52 is conveyed to the feeding port 22, the conveying device 60 conveys the storage device 10 to the sub-accommodation station 31 along the first preset direction. After the position detection device at the sub-accommodation station 31 detects the storage device 10, the control device starts the distribution device 70 to convey the storage device 10 into the sub-accommodation station 31, so that the storage device 10 can be conveyed into the sub-accommodation station 31 while keeping the initial state, and the conveying continuity of the storage device 10 is further ensured. At the same time, the above-mentioned arrangement improves the efficiency of conveying the storage device 10 to the corresponding sub-accommodation station 31 through the coordinated work of the conveying device 60 and the distribution device 70, realizes the automatic transmission and positioning of the storage device 10, and further improves the passivation efficiency of the half battery.

[0058] In the embodiment, the number of the sub-accommodation stations 31 is two.

[0059] It should be noted that the number of the sub-accommodation stations 31 is not limited to this, and can be adjusted according to the working condition and use requirement. Alternatively, the number of the sub-accommodation stations 31 is three, or four, or six, or eight, or a plurality.

[0060] In the embodiment, the number of the accommodation stations 30 is eight.

[0061] It should be noted that the number of the accommodation stations 30 is not limited to this, and can be adjusted according to the working condition and use requirement. Alternatively, the number of the accommodation stations 30 is four, or six, or eight, or nine, or a plurality.

[0062] Specifically, the position detection device is one of a distance sensor, an ultrasonic sensor, a vision sensor, and an infrared sensor.

[0063] Specifically, the control device is the same as the control device described above.

[0064] In the embodiment, the first preset direction is parallel to the length direction of the bottom plate.

[0065] As shown in Figure 2 The passivation device further comprises a testing device 80 arranged on one side of the passivation device 20 to detect the passivated cutting surface. In this way, the passivated half-battery can detect the passivation result through the testing device 80, and the passivation effect of the half-battery can be fed back in real time, further improving the passivation efficiency of the half-battery. At the same time, the detection device can timely identify the half-battery with poor passivation effect, reducing the waste rate and rework cost.

[0066] As shown in Figure 2 The passivation device further comprises a conveying device 90 arranged between the passivation device 20 and the testing device 80 to convey the storage device 10 at the discharge port 23 to the testing device 80. In this way, the storage device 10 is directly conveyed to the testing device 80 through the conveying device 90, without the need for loading and unloading operations on the storage device 10, realizing the continuity of the half-battery passivation process and the testing link, thereby improving the continuity and efficiency of the entire process flow. At the same time, the conveying device 90 is arranged in a manner that realizes the smoothness and stability of the conveying of the storage device 10, ensuring the conveying efficiency of the storage device 10.

[0067] As shown in Figure 5 The storage device 10 further comprises a cover plate 14 arranged on the storage inlet 13. In this way, the storage device 10 realizes the smoothness of the storage of the half-battery through the storage inlet 13. At the same time, the storage device 10 also seals the storage inlet 13 through the cover plate 14, preventing the half-battery from being continuously placed. The cover plate 14 is arranged in a manner that can block the contact between the half-battery and the outside environment except for the cutting surface, realizing the protection of the half-battery.

[0068] Specifically, the storage device 10 can store 800 to 1000 half-batteries.

[0069] Specifically, the storage device 10 is also provided with a position detection assembly, or the storage device 10 is provided with a counting assembly, when the position of the half-batteries in the storage device 10 reaches a preset position, or the storage number of the half-batteries reaches 800 to 1000, the cover plate 14 of the storage device 10 covers the storage inlet 13.

[0070] Specifically, the counting assembly is one of a photoelectric sensor, a Hall sensor, a magnetic sensor and a counter.

[0071] As shown in Figure 1 and Figure 2 The passivation device 20 also includes a gas supply assembly 24, a heat supply assembly, a conductive assembly and an exhaust assembly 26. The gas supply assembly 24 is arranged in the passivation cavity 21 to supply various gases into the passivation cavity 21. The heat supply assembly is arranged in the passivation cavity 21 to supply heat into the passivation cavity 21. The conductive assembly is arranged in the passivation cavity 21, and the conductive assembly includes at least two oppositely arranged conductive structures 25, and a conductive space is formed around the at least two conductive structures 25 to ionize the process gas in the gas in the conductive space. The exhaust assembly 26 is arranged in the passivation cavity 21 to extract the gas in the passivation cavity 21. In this way, the passivation device 20 blows the gas required by the passivation process into the passivation cavity 21 through the gas supply assembly 24; supplies heat into the passivation cavity 21 through the heat supply assembly to ensure that the temperature in the passivation cavity 21 meets the requirements of the passivation process; ionizes the process gas through the conductive assembly, so that the ionized plasma is deposited on the cutting surface of the half-battery to form a thin film; and the exhaust assembly 26 exhausts the gas in the passivation cavity 21 to ensure that the gas environment in the passivation cavity 21 meets the passivation requirements. The above arrangement ensures the passivation reliability of the passivation device 20, and also ensures the passivation reliability of the half-battery.

[0072] In the embodiment, the passivation device 20 also includes a gas tightness detection assembly arranged in the passivation cavity 21 to detect the gas tightness in the passivation cavity 21.

[0073] Specifically, the gas tightness detection assembly is a leak detector.

[0074] Specifically, when the plurality of storage devices 10 are all transported to the sub-holding station 31, the feeding port 22 of the passivation device 20 is closed, the gas supply assembly 24 blows nitrogen into the passivation cavity 21, and the nitrogen purges the passivation cavity 21. At this time, the heat supply assembly supplies heat to the passivation cavity 21, after the heat supply is completed, the exhaust assembly 26 exhausts the nitrogen in the passivation cavity 21, the gas tightness detection assembly measures whether the gas tightness in the passivation cavity 21 is qualified, and after the passivation cavity 21 is qualified, the gas supply assembly 24 starts to blow the process gas into the passivation cavity 21, and the conductive assembly ionizes the process gas into plasma through the conductive structure 25. The plasma is deposited on the cutting surface of the half-cell to form a thin film. Then, the exhaust assembly 26 exhausts the process gas in the passivation cavity 21. Then, the gas supply assembly 24 blows nitrogen into the passivation cavity 21, and the nitrogen purges the passivation cavity 21. After the purge is completed, the exhaust assembly 26 exhausts the nitrogen in the passivation cavity 21. Then, the gas supply assembly 24 blows nitrogen into the passivation cavity 21 until the passivation cavity 21 is in a normal pressure state. Finally, the discharge port 23 of the passivation device 20 is opened, and the storage device 10 is transported to the test device 80 for testing through the transmission device 90.

[0075] In the embodiment, the passivation device 20 is arranged in such a manner that the cutting surface of the half-cell in the passivation cavity 21 can be plated with multiple film layers. The multiple film layers include an aluminum oxide film, a silicon oxide film, a silicon nitride film, and a silicon oxynitride film.

[0076] In the embodiment, the number of the conductive structures 25 is two, and the two conductive structures 25 are both plate-shaped, one of which has positive electricity and the other of which has negative electricity, so that an electric field is formed in the conductive space to ionize the process gas in the conductive space.

[0077] In the embodiment, the multiple gases include trimethylaluminum gas, laughing gas, silane, ammonia, and nitrogen.

[0078] In the embodiment, the passivation device further comprises a temperature detection assembly arranged in the passivation cavity 21 to detect the temperature in the passivation cavity 21 and transmit the detection value to the control device.

[0079] Specifically, the temperature detection assembly is a temperature sensor.

[0080] From the above description, it can be seen that the above-mentioned embodiments of the utility model realize the following technical effects:

[0081] The passivation device is used for passivating cutting surfaces of at least two sub-pieces to be passivated, the two sub-pieces to be passivated are formed by slitting a piece to be passivated, and the passivation device is provided with at least two oppositely arranged storage devices corresponding to the at least two sub-pieces to be passivated, the storage devices are provided with storage cavities and storage openings communicating with each other, the storage cavities are used for storing the sub-pieces to be passivated, and the storage openings are used for communicating the cutting surfaces with the outside. A passivation device is arranged on one side of the storage device, and the passivation device is provided with a passivation cavity for passivating the cutting surfaces. A containing station is arranged in the passivation cavity, and the containing station includes at least two sub-containing stations, each of which is used for containing the storage device. Among them, the at least two sub-containing stations are oppositely arranged to make the at least two cutting surfaces oppositely arranged. In this way, when a whole piece of battery is cut into two half pieces of battery by laser, the two half pieces of battery are respectively stored in the two oppositely arranged storage devices, avoiding the repositioning and direction adjustment of one of the half pieces of battery, simplifying the operation steps of the workers, improving the storage efficiency of the half pieces of battery, and reducing the risk of scratches and hidden cracks of the half pieces of battery. Then, when the storage cavities of the two storage devices are full, the two storage devices enter the containing station, and the cutting surfaces of the half pieces of battery are communicated with the passivation cavity through the storage openings, so as to ensure the passivation of the cutting surfaces. At the same time, the above-mentioned arrangement of the sub-containing stations makes the cutting surfaces of the two half pieces of battery oppositely arranged face to face, which not only ensures the uniform passivation of the cutting surfaces, but also avoids the adjustment of rotating the cutting surfaces upward, further simplifies the operation steps of the workers, improves the passivation efficiency of the half pieces of battery, and solves the problem of low passivation efficiency of the half pieces of battery in the prior art. At the same time, the above-mentioned arrangement makes the two half pieces of battery from being cut to being stored in the storage devices, and then being passivated, without the need for additional direction adjustment operation, which reduces the work efficiency of the workers and improves the passivation efficiency of the half pieces of battery.

[0082] It should be noted that the terms used herein are only intended to describe specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. In addition, it should be understood that the terms "comprise" and / or "include" as used in the specification indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0083] The foregoing description, for purposes of clarity, describes the present application in terms of its components, processes and operations. Such descriptions and representations are the means used by those skilled in the art of describing the structural and functional necessities of and changes to the present application, but are not meant to limit the present application to a particular embodiment. Also, the phrases "first," "second," and the like, do not denote any order, quantity, or importance, but rather are used to nomenclature the nature of the various components and / or areas described. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0084] In the description of the present application, it is to be understood that the specific locations of the terms such as "front", "back", "upper", "lower", "left", "right", "transverse", "vertical", "horizontal", "top", "bottom", and the like, indicate and imply the relative positions of the devices or elements as shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate and imply that the devices or elements must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the terms "inner" and "outer" refer to the inner and outer relative to the contour of the components themselves.

[0085] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper", and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices as described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0086] In addition, it should be noted that the use of the terms "first", "second", and the like to describe components is merely intended to distinguish the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application.

[0087] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A passivation apparatus for passivating the cut surfaces of at least two sub-passivation members (1), the two sub-passivation members (1) being formed by cutting a single passivation member, characterized in that, The passivation device includes: At least two oppositely arranged storage devices (10) are arranged one-to-one with at least two of the sub-passivation components (1). Each storage device (10) has a storage cavity (11) and a storage opening (12) that are interconnected. The storage cavity (11) is used to store the sub-passivation component (1), and the storage opening (12) is used to connect the cutting surface with the outside. A passivation device (20) is disposed on one side of the storage device (10), the passivation device (20) having a passivation cavity (21) for passivating the cut surface; A receiving station (30) is provided in the passivation cavity (21). The receiving station (30) includes at least two sub-receiving stations (31), each of which is used to receive the storage device (10). At least two of the sub-accommodating stations (31) are arranged opposite each other so that at least two of the cutting surfaces are arranged opposite each other.

2. The passivation apparatus according to claim 1, characterized in that, The passivation device further includes at least two oppositely arranged transport devices (40), which are disposed between the storage device (10) and the sub-passivation component (1) to transport the sub-passivation component (1) into the storage cavity (11).

3. The passivation apparatus according to claim 2, characterized in that, The passivation device (20) has a feed inlet (22) that is connected to the passivation chamber (21). The passivation device also includes a conveying device (50), which is disposed between the storage device (10) and the passivation device (20) to convey the storage device (10) sequentially to the feed inlet (22).

4. The passivation apparatus according to claim 3, characterized in that, The conveying device (50) includes: At least two oppositely arranged transport components (51) are arranged in a one-to-one correspondence with at least two of the storage devices (10) for transporting the storage devices (10); A transfer assembly (52), one end of which is connected to the passivation device (20) to transfer the storage device (10) to the feed inlet (22); At least two of the conveying assemblies (51) are alternately connected to the end of the transfer assembly (52) away from the passivation device (20) to alternately convey at least two of the storage devices (10) to the transfer assembly (52).

5. The passivation apparatus according to claim 4, characterized in that, The conveying device (50) further includes: A stop assembly (53) is disposed on the conveying assembly (51). The stop assembly (53) has a stop state and a reset state. When the stop assembly (53) is in the stop state, the stop assembly (53) contacts the storage device (10) to prevent the storage device (10) from being conveyed. When the stop assembly (53) is in the reset state, the stop assembly (53) separates from the storage device (10) to restore the conveying of the storage device (10).

6. The passivation apparatus according to claim 4, characterized in that, The passivation device (20) includes a base plate, and the receiving station (30) is disposed on the base plate. There are multiple receiving stations (30), which are spaced apart along a first preset direction. At least two sub-receiving stations (31) surround each other to form a receiving space. The passivation device further includes: A conveying device (60) is disposed on the base plate and located within the accommodating space. The conveying device (60) conveys the storage device (10) along a first preset direction. A distributing device (70) is disposed on the conveying device (60). Both ends of the distributing device (70) extend into two oppositely disposed sub-accepting stations (31). There are multiple distributing devices (70), and multiple distributing devices (70) are disposed one-to-one with multiple receiving stations (30) to distribute the storage device (10) on the conveying device (60) to the sub-accepting station (31). A position detection device is installed on the sub-accommodation station (31) to detect the position of the storage device (10); The control device is connected to both the detection device and the dispensing device (70). The control device controls the opening of the dispensing device (70) based on the detection data of the position detection device. Wherein, the first preset direction is parallel to the length direction of the base plate or the first preset direction is parallel to the width direction of the base plate.

7. The passivation apparatus according to claim 6, characterized in that, The passivation device also includes a testing device (80), which is disposed on one side of the passivation device (20) to detect the passivated cut surface.

8. The passivation apparatus according to claim 7, characterized in that, The passivation device (20) also has a discharge port (23), and the passivation equipment also includes a transmission device (90), which is disposed between the passivation device (20) and the testing device (80) to transmit the storage device (10) at the discharge port (23) to the testing device (80).

9. The passivation apparatus according to claim 1, characterized in that, The storage device (10) also has a storage inlet (13) that communicates with the storage cavity (11) for inserting the sub-passivation component (1); the storage device (10) also includes a cover plate (14) for covering the storage inlet (13).

10. The passivation apparatus according to claim 1, characterized in that, The passivation device (20) further includes: A gas supply assembly (24) is disposed in the passivation chamber (21) to supply various gases to the passivation chamber (21); A heating assembly is disposed within the passivation cavity (21) to provide heat to the passivation cavity (21); A conductive component is disposed within the passivation cavity (21). The conductive component includes at least two opposing conductive structures (25), and a conductive space is formed between the at least two conductive structures (25) to ionize the process gas in the gas within the conductive space. An exhaust assembly (26) is disposed within the passivation chamber (21) to extract the gas within the passivation chamber (21).

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