Battery production system and battery production method

Abstract

The embodiment of the present application provides a battery production system and a battery production method. Among them, the battery production system includes: a preheating device, including a preheating chamber, a first conveying mechanism is provided in the preheating chamber, and the preheating chamber has a first feed door and a first discharge door; and a baking device, including a baking chamber, and the baking chamber has a second feed door and a second discharge door; wherein the first conveying mechanism is configured to deliver the battery cells in the preheating chamber to the baking chamber through the first discharge door and the second feed door when the first discharge door is opposite to the second feed door and both are open. In the process of the battery cells being transferred from the preheating chamber to the baking chamber by the first conveying mechanism provided in the preheating chamber, the time is short, the temperature drop of the battery cells during the transfer process can be reduced, and the influence of the temperature drop on the process performance can be avoided. In addition, the battery cell transfer time is short, the opening time of the chamber door is shortened, the power loss is reduced, the transfer efficiency is high, and the production cycle can be improved.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a battery production system and a battery production method. Background Art

[0002] In some related technologies, double-glass photovoltaic modules include a composite layer consisting of two pieces of glass and solar cells. During the production process of photovoltaic modules, the cells need to be baked and other processes. During the process of baking the cells, the cells may cool down, the process stability is difficult to ensure, and the operation efficiency is low. Summary of the invention

[0003] Some embodiments of the present application provide a battery production system and a battery production method to alleviate the problem of difficulty in ensuring process stability.

[0004] Some embodiments of the present application provide a battery production system, including: a preheating device, including a preheating chamber, in which a first conveying mechanism is provided, and the preheating chamber has a first feed door and a first discharge door; and a baking device, including a baking chamber, which has a second feed door and a second discharge door; wherein the first conveying mechanism is configured to convey the battery cells in the preheating chamber to the baking chamber through the first discharge door and the second feed door when the first discharge door is opposite to the second feed door and both are open.

[0005] The battery cell is transferred from the preheating chamber to the baking chamber through the first conveying mechanism arranged in the preheating chamber, which takes a short time, can reduce the temperature drop of the battery cell during the transfer process, and avoid the influence of the temperature drop on the process performance. The battery cell transfer time is short, the opening time of the chamber door is shortened, the power loss is reduced, the transfer efficiency is high, and the production cycle can be improved. Furthermore, the first conveying mechanism is arranged in the preheating chamber, which reduces the floor space, reduces the equipment failure rate, and improves the equipment reliability.

[0006] In some embodiments, the number of the baking cavities is at least two, and the at least two baking cavities are arranged in sequence up and down; the battery production system also includes a first power mechanism driving and connected to the preheating device, and the first power mechanism is configured to drive the preheating device to move up and down so that the preheating chamber and one of the at least two baking cavities are located at the same height.

[0007] The first power mechanism drives the preheating device to move up and down so that the preheating chamber and one of the at least two baking chambers are located at the same height. During the process of transferring the battery cells from the preheating chamber to the one of the baking chambers, the other baking chambers of the at least two baking chambers are still baking, and the temperature in the other baking chambers will not be affected, thereby improving the baking efficiency and meeting the production rhythm.

[0008] In some embodiments, the number of the preheating cavities is at least two, and at least two preheating cavities are arranged up and down in sequence; the number of the baking cavities is at least two, and at least two baking cavities are arranged up and down in sequence; one of the at least two preheating cavities is configured to be at the same height as one of the at least two baking cavities.

[0009] The battery cells are transferred from multiple preheating chambers to multiple baking chambers, which increases production efficiency and improves production rhythm.

[0010] In some embodiments, the battery production system also includes a first power mechanism driving the preheating device, wherein the first power mechanism is configured to drive the preheating device to move up and down so that the uppermost preheating chamber among the at least two preheating chambers can be selectively located at the same height as any one of the at least two baking chambers.

[0011] The first power mechanism drives the preheating device to move, and the uppermost preheating chamber of the preheating device and the uppermost baking chamber can be located at the same height, so that all baking chambers have preheating chambers to transport battery cells without increasing the lifting height of the first power mechanism too much, thereby ensuring the stability of the center of gravity of the first power mechanism.

[0012] In some embodiments, the number of the baking chambers is greater than the number of the preheating chambers, and the battery production system further includes a first power mechanism driving the preheating device, wherein the first power mechanism is configured to drive the preheating device to move up and down so that the nth preheating chamber among the at least two preheating chambers can be selectively located at the same height as the nth baking chamber among the at least two baking chambers and one of the baking chambers below it; wherein n is an integer greater than zero and is the nth one arranged from top to bottom.

[0013] The number of preheating chambers is less than the number of baking chambers, and each preheating chamber can continuously receive battery cells for preheating. After preheating, the battery cells can be sent to the baking chamber, and the battery cells can be continuously transferred to each baking chamber. The cooperation of multiple preheating chambers can quickly provide preheated battery cells to multiple baking chambers, which has high production efficiency and improves production rhythm.

[0014] In some embodiments, the battery production system also includes a feeding device, which includes a first linear conveying mechanism, and the first linear conveying mechanism is configured to deliver the battery cells to the preheating chamber through the first discharge door when the preheating chamber and the first linear conveying mechanism are at the same height and the first feeding door is opened.

[0015] The linear conveying method can quickly deliver the battery cells to the preheating chamber, shorten the time the feed door of the preheating chamber is open, avoid excessive heat loss in the preheating chamber, reduce power loss, and no longer need to set up a robotic arm to transport the battery cells, saving space.

[0016] In some embodiments, the number of the preheating chambers is at least two, and at least two preheating chambers are arranged in sequence up and down; the battery production system also includes a first power mechanism driving and connected to the preheating device, and the first power mechanism is configured to drive the preheating device to move up and down so that one of the at least two preheating chambers is at the same height as the first linear conveying mechanism.

[0017] Each preheating chamber can take turns to receive battery cells at the same height as the first linear conveying mechanism. After the battery cells are preheated, they are sent to the baking chamber and then return to the first linear conveying mechanism to wait for receiving the battery cells, thereby improving the smoothness of the workflow and preventing the process from being disconnected.

[0018] In some embodiments, the battery production system also includes a cooling device, which includes a cooling chamber, the cooling chamber has a third feed door and a third discharge door, and a second conveying mechanism is provided in the baking chamber. The second conveying mechanism is configured to convey the battery cells in the baking chamber to the cooling chamber through the second discharge door and the third feed door when the second discharge door is opposite to the third feed door and both are open.

[0019] The battery cells are transferred from the baking chamber to the cooling chamber through the second conveying mechanism in the baking chamber in a short time, which shortens the opening time of the discharge door of the baking chamber, reduces power loss, and has high transfer efficiency, thereby improving production rhythm.

[0020] In some embodiments, the number of the baking cavities is at least two, and the at least two baking cavities are arranged in sequence up and down; the battery production system also includes a second power mechanism driving and connected to the cooling device, and the second power mechanism is configured to drive the cooling device to move up and down so that the cooling cavity is at the same height as one of the at least two baking cavities.

[0021] After the battery cells in one of the baking chambers are baked, the cooling chamber is located at the same height as the one of the baking chambers to cool the battery cells in the one of the baking chambers. After the battery cells in the other baking chamber are baked, the cooling chamber is located at the same height as the other baking chamber to cool the battery cells in the other baking chamber, thereby improving production efficiency and meeting production rhythm.

[0022] In some embodiments, the number of the cooling cavities is at least two, and at least two cooling cavities are arranged up and down in sequence; the number of the baking cavities is at least two, and at least two baking cavities are arranged up and down in sequence; one of the at least two cooling cavities is configured to be at the same height as one of the at least two baking cavities.

[0023] After baking is completed in one of the baking chambers, one of the cooling chambers can be located at the same height as the baking chamber to receive the battery cells in the baking chamber for cooling. After baking is completed in the other baking chamber, the other cooling chamber can be located at the same height as the baking chamber to receive the battery cells in the baking chamber for cooling, thereby improving production efficiency and meeting production rhythm.

[0024] In some embodiments, the battery production system also includes a second power mechanism driving the cooling device, and the second power mechanism is configured to drive the cooling device to move up and down so that the uppermost cooling chamber among the at least two cooling chambers can be selectively located at the same height as any one of the at least two baking chambers.

[0025] The second power mechanism drives the cooling device to move, so that the top cooling cavity of the cooling device is at the same height as the top baking cavity, so that all baking cavities have cooling cavities corresponding to receiving battery cells, and the lifting height of the second power mechanism will not be increased too much, thereby ensuring the stability of the center of gravity of the second power mechanism.

[0026] In some embodiments, the number of the baking cavities is greater than the number of the cooling cavities, and the battery production system further includes a second power mechanism driving the cooling device, wherein the second power mechanism is configured to drive the cooling device to move up and down so that the nth cooling cavity among the at least two cooling cavities can be selectively located at the same height as the nth baking cavity among the at least two baking cavities and one of the baking cavities below it; wherein n is an integer greater than zero and is the nth arranged from top to bottom.

[0027] The number of cooling chambers is less than the number of baking chambers, and each cooling chamber can continuously receive battery cells for cooling. After cooling, the battery cells can be sent to the discharge device below, and then return to continue receiving battery cells transmitted by the baking chamber. Multiple cooling chambers can cooperate to quickly cool the battery cells baked in multiple baking chambers, which has high production efficiency and improves production rhythm.

[0028] In some embodiments, the battery production system also includes a discharge device, and a third conveying mechanism is provided in the cooling chamber. The third conveying mechanism is configured to convey the battery cells in the cooling chamber to the discharge device through the third discharge door when the third discharge door and the discharge device are located at the same height and are open.

[0029] The third conveying mechanism is arranged in the cooling chamber, which reduces the footprint of the equipment, reduces the equipment failure rate, and improves the reliability of the equipment.

[0030] In some embodiments, the number of the cooling cavities is at least two, and at least two cooling cavities are arranged in sequence up and down; the battery production system also includes a second power mechanism driving and connected to the cooling device, and the second power mechanism is configured to drive the cooling device to move up and down so that one of the at least two cooling cavities is at the same height as the discharge device.

[0031] At least two cooling chambers are arranged in sequence up and down. Each cooling chamber can be located at the same height as the discharge device under the drive of the second power mechanism. Each cooling chamber can take turns to deliver the cooled battery cells to the discharge device. The discharge device can continuously output the battery cells, thereby improving the smoothness of the work process and preventing the process from being disconnected.

[0032] Some embodiments of the present application also provide a battery production method, comprising the following steps: providing a battery production system, the battery production system comprising: a preheating device, comprising a preheating chamber, a first conveying mechanism being provided in the preheating chamber, the preheating chamber having a first feed door and a first discharge door; and a baking device, comprising a baking chamber, the baking chamber having a second feed door and a second discharge door; making the first discharge door and the second feed door opposite to each other and both open; and conveying the battery cells in the preheating chamber to the baking chamber through the first discharge door and the second feed door by the first conveying mechanism.

[0033] The battery cell is transferred from the preheating chamber to the baking chamber through the first conveying mechanism in the preheating chamber in a short time, which can reduce the temperature drop of the battery cell during the transfer process and avoid the influence of the temperature drop on the process performance. The battery cell transfer time is short, the chamber door opening time is shortened, the power loss is reduced, the transfer efficiency is high, and the production cycle can be improved. Furthermore, the first conveying mechanism is arranged in the preheating chamber, which can reduce the footprint of the equipment, reduce the equipment failure rate, and improve the reliability of the equipment.

[0034] In some embodiments, the number of baking cavities is at least two, and at least two baking cavities are arranged in sequence up and down; the step of making the first discharge door and the second feed door opposite to each other and both open includes: driving the preheating device up and down by a first power mechanism so that the preheating chamber and one of the at least two baking cavities are at the same height, at this time, the first discharge door of the preheating chamber is opposite to the second discharge door of one of the baking cavities; and controlling the first discharge door and the second discharge door to open.

[0035] The first power mechanism drives the preheating device to move up and down so that the preheating chamber and one of the at least two baking chambers are located at the same height. During the process of transferring the battery cells from the preheating chamber to the one of the baking chambers, the other baking chambers of the at least two baking chambers are still baking, and the temperature in the other baking chambers will not be affected, thereby improving the baking efficiency and meeting the production rhythm.

[0036] In some embodiments, the battery production system also includes a feeding device, which includes a first linear conveying mechanism; the number of the preheating chambers is at least two, and at least two preheating chambers are arranged in sequence up and down; the battery production method also includes the steps of: driving the preheating device up and down by a first power mechanism so that one of the at least two preheating chambers is at the same height as the first linear conveying mechanism; opening the first feeding door; and delivering the battery cells to the preheating chamber through the first discharge door by the first linear conveying mechanism.

[0037] The linear conveying method can quickly deliver the battery cells to the preheating chamber, shorten the time the feed door of the preheating chamber is open, avoid excessive heat loss in the preheating chamber, reduce power loss, and no longer need to set up a robotic arm to transport the battery cells, saving space.

[0038] In some embodiments, the battery production system also includes a cooling device, the cooling device includes a cooling chamber, the cooling chamber has a third feed door and a third discharge door, and a second conveying mechanism is provided in the baking chamber; the battery production method also includes the steps of: making the second discharge door opposite to the third feed door and both open; and conveying the battery cells in the baking chamber through the second discharge door and the third feed door to the cooling chamber by the second conveying mechanism.

[0039] The battery cells are transferred from the baking chamber to the cooling chamber through the second conveying mechanism in the baking chamber in a short time, which shortens the opening time of the discharge door of the baking chamber, reduces power loss, and has high transfer efficiency, thereby improving production rhythm.

[0040] In some embodiments, the number of baking cavities is at least two, and at least two baking cavities are arranged in sequence up and down; the step of making the second discharge door and the third feed door opposite to each other and both open includes: driving the cooling device to move up and down by a second power mechanism so that the cooling cavity and one of the at least two baking cavities are at the same height, at this time, the third feed door of the cooling cavity is opposite to the second discharge door of one of the baking cavities; making the second discharge door and the third discharge door open.

[0041] After the battery cells in one of the baking chambers are baked, the cooling chamber is located at the same height as the one of the baking chambers to cool the battery cells in the one of the baking chambers. After the battery cells in the other baking chamber are baked, the cooling chamber is located at the same height as the other baking chamber to cool the battery cells in the other baking chamber, thereby improving production efficiency and meeting production rhythm.

[0042] In some embodiments, the battery production system also includes a discharge device; a third conveying mechanism is provided in the cooling chamber, the number of the cooling chambers is at least two, and at least two cooling chambers are arranged in sequence up and down; the battery production method also includes the steps of: driving the cooling chamber device up and down by a second power mechanism so that one of the at least two cooling chambers is at the same height as the discharge device; opening the third discharge door; and delivering the battery cells to the discharge device through the third discharge door by the third conveying mechanism.

[0043] The third conveying mechanism is arranged in the cooling chamber, which reduces the footprint of the equipment, reduces the equipment failure rate, and improves the reliability of the equipment.

[0044] Based on the above technical solution, this application has at least the following beneficial effects:

[0045] In some embodiments, the battery cells are transferred from the preheating chamber to the baking chamber via a first conveying mechanism provided in the preheating chamber. The transfer process takes a short time, which can reduce the temperature drop of the battery cells during the transfer process and avoid the influence of the temperature drop on the process performance. The short transfer time of the battery cells can shorten the opening time of the chamber door, reduce power loss, and have high transfer efficiency, which can improve the production cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the drawings without paying creative work.

[0047] Figure 1 is a schematic diagram of the structure of a double-glass photovoltaic module disclosed in some embodiments of the present application;

[0048] Figure 2 It is a structural schematic diagram of a battery production system disclosed in some embodiments of the present application.

[0049] In the drawings, the drawings are not drawn to scale.

[0050] Marking instructions: 1-preheating device; 11-preheating chamber; 12-first conveying mechanism; 13-first feed door; 14-first discharge door; 2-baking device; 21-baking chamber; 22-second conveying mechanism; 23-second feed door; 24-second discharge door; 3-cooling device; 31-cooling chamber; 32-third conveying mechanism; 33-third feed door; 34-third discharge door; 4-feeding device; 41-first linear conveying mechanism; 5-discharging device; 51-second linear conveying mechanism; 6-first power mechanism; 61-first screw; 62-first guide rod; 7-second power mechanism; 71-second screw; 72-second guide rod. DETAILED DESCRIPTION

[0051] The following detailed description and drawings of the embodiments of the present application are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0052] In the description of the present application, it should be noted that, unless otherwise specified, "multiple" means more than two; the terms "upper", "lower", "left", "right", "inside", "outside", etc., indicating the orientation or positional relationship, are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. "Vertical" is not strictly vertical, but is within the allowable error range. "Parallel" is not strictly parallel, but is within the allowable error range.

[0053] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0054] Solar cells are thin sheets of photovoltaic semiconductors that use sunlight to generate electricity directly, also known as "solar chips" or "photovoltaic cells". When a certain light intensity is met, solar cells can output voltage and generate current in the presence of a circuit.

[0055] Solar cells include double-glass photovoltaic modules, reference Figure 1The double-glass photovoltaic module includes a lower glass plate A, a front electrode layer B, a power generation layer C, a back electrode layer D and an upper glass plate E. Among them, the power generation layer C is made of power generation materials, which are coated on the glass plate in the form of a solution to form a semi-finished cell (hereinafter referred to as a cell), which needs to be baked and crystallized.

[0056] In some related technologies, the method of operating the battery cell baking and crystallization includes sending the battery cell to a preheating area for preheating by a robot arm, and after the preheating is completed, sending the battery cell to a baking area for baking by the robot arm.

[0057] The inventor found that: the form of using a robot to transport battery cells takes a long time to transport. In the process of transferring the battery cells from the preheating area to the baking area, the long transport time causes the temperature of the preheated battery cells to drop. After being sent to the baking area, the temperature of the battery cells rises again, that is, the battery cells need to go through a cycle of heating, cooling, and heating, and the process stability is difficult to ensure; and when the robot arm takes the material, the chamber doors of the preheating area and the baking area are opened for a long time, which affects the temperature uniformity in the chamber and increases power consumption. Furthermore, the robot arm has a complex structure, occupies a large space, has a high equipment failure rate, and when there are more baking layers in the baking area, the robot arm is heavily loaded, the production efficiency is low, and the production cycle requirements cannot be met. In addition, there is also a risk of fragmentation when transporting battery cells by a robot arm.

[0058] Based on this, the embodiments of the present disclosure provide a battery production system and a battery production method, which are used to shorten the battery cell transfer time and reduce the impact of temperature reduction on battery process stability.

[0059] refer to Figure 2 In some embodiments, the battery production system includes a preheating device 1 and a baking device 2 .

[0060] The preheating device 1 comprises a preheating chamber 11 , in which a first conveying mechanism 12 is arranged. The preheating chamber 11 has a first feeding door 13 and a first discharging door 14 .

[0061] The baking device 2 includes a baking chamber 21 , and the baking chamber 21 has a second material inlet door 23 and a second material outlet door 24 .

[0062] The first conveying mechanism 12 is configured to convey the battery cells in the preheating chamber 11 to the baking chamber 21 through the first discharge door 14 and the second feed door 23 when the first discharge door 14 and the second feed door 23 are opposite to each other and both are open.

[0063] In the above embodiment, when the first discharge door 14 and the second feed door 23 are opposite and both are open, the first conveying mechanism 12 conveys the battery cells in the preheating chamber 11 to the baking chamber 21 through the first discharge door 14 and the second feed door 23. The battery cells are conveyed from the preheating chamber 11 to the baking chamber 21 in a short time, which can reduce the temperature drop of the battery cells during the conveying process and avoid the influence of the temperature drop on the process performance. The battery cells are conveyed in a short time, the opening time of the chamber door is shortened, the power loss is reduced, the conveying efficiency is high, and the production cycle can be improved. Furthermore, the first conveying mechanism 12 is arranged in the preheating chamber 11, which reduces the floor space, reduces the equipment failure rate, and improves the equipment reliability.

[0064] In some embodiments, the number of baking cavities 21 is at least two, and at least two baking cavities 21 are arranged in sequence up and down; the battery production system also includes a first power mechanism 6 driven and connected to the preheating device 1, and the first power mechanism 6 is configured to drive the preheating device 1 to move up and down so that the preheating chamber 11 is at the same height as one of the at least two baking cavities 21.

[0065] The at least two baking chambers 21 are independent of each other, and each baking chamber 21 has a second material inlet door 23 and a second material outlet door 24. When the first power mechanism 6 drives the preheating device 1 to move up and down, the preheating chamber 11 and one of the at least two baking chambers 21 are located at the same height. During the process of transferring the battery cells from the preheating chamber 11 to the one of the baking chambers 21, the other baking chambers 21 of the at least two baking chambers 21 are still baking, and the temperature in the other baking chambers 21 will not be affected, thereby improving the baking efficiency and meeting the production cycle.

[0066] In some embodiments, the first power mechanism 6 includes a first motor, a first lead screw 61 , a first nut and a first guide rod 62 .

[0067] The first end of the first lead screw 61 is connected to the first motor, and the second end of the first lead screw 61 is threadedly connected to the first nut. The first nut is fixed to the preheating device 1. The first motor provides power to rotate the first lead screw 61. The rotation of the first lead screw 61 causes the first nut to move up and down along the first lead screw, thereby driving the preheating device 1 to move up and down.

[0068] There are two first guide rods 62, which are respectively arranged on both sides of the first lead screw 61. The first end of the first guide rod 62 is fixed, and the second end of the first guide rod 62 is passed through the preheating device 1. The preheating device 1 moves up and down along the first guide rod 62, and the two first guide rods 62 guide the preheating device 1.

[0069] In some embodiments, the number of preheating chambers 11 is at least two, and at least two preheating chambers 11 are arranged up and down in sequence; the number of baking chambers 21 is at least two, and at least two baking chambers 21 are arranged up and down in sequence; one of the at least two preheating chambers 11 is configured to be at the same height as one of the at least two baking chambers 21.

[0070] There are at least two preheating chambers 11, and battery cells can be placed in at least two preheating chambers 11 for preheating. There are at least two baking chambers 21, and battery cells can be placed in at least two baking chambers 21 for baking. Since the preheating time in the preheating chamber 11 is shorter than the baking time in the baking chamber 21, battery cells can be arranged in at least two preheating chambers 11. After the battery cells in one preheating chamber 11 are preheated, the preheating chamber 11 is located at the same height as a corresponding baking chamber 21. The first discharge door 14 of the preheating chamber 11 is opposite to the second feed door of the baking chamber 21. The first conveying mechanism 12 delivers the battery cells in the preheating chamber 11 to the baking chamber 21 through the first discharge door 14 and the second feed door 23. After the battery cells in another preheating chamber 11 are preheated, the other preheating chamber 11 is located at the same height as the other baking chamber 21, and the first conveying mechanism 12 in the other preheating chamber 11 delivers the battery cells in the other preheating chamber 11 to the other baking chamber 21. The battery cells are transferred to the multiple baking chambers 21 through the multiple preheating chambers 11, so the production efficiency is high and the production cycle is improved.

[0071] In some embodiments, the battery production system also includes a first power mechanism 6 driven and connected to the preheating device 1, and the first power mechanism 6 is configured to drive the preheating device 1 to move up and down so that the preheating chamber 11 located at the top layer of the at least two preheating chambers 11 can be selectively located at the same height as any one of the at least two baking chambers 21.

[0072] The first power mechanism 6 drives the preheating device 1 to move up and down. The preheating chamber 11 located at the top layer of the at least two preheating chambers 11 can be selectively located at the same height as any baking chamber 21 of the at least two baking chambers 21. The first power mechanism 6 drives the preheating device 1 to move, and the top layer of the preheating chamber 11 and the top layer of the baking chamber 21 of the preheating device 1 can be located at the same height at most, so that all baking chambers 21 can have preheating chambers 11 to transport battery cells, and the lifting height of the first power mechanism 6 will not be increased too much, thereby ensuring the stability of the center of gravity of the first power mechanism 6.

[0073] In some embodiments, the number of baking chambers 21 is greater than the number of preheating chambers 11, and the battery production system further includes a first power mechanism 6 drivingly connected to the preheating device 1, and the first power mechanism 6 is configured to drive the preheating device 1 to move up and down, so that the nth preheating chamber 11 of at least two preheating chambers 11 can be selectively located at the same height as the nth baking chamber 21 of at least two baking chambers 21 and one of the baking chambers 21 below it; wherein n is an integer greater than zero, and is the nth arranged from top to bottom.

[0074] For example: the first preheating chamber 11 can be selectively located at the same height as the first baking chamber 21 and one of the baking chambers 21 below the first baking chamber 21, the second preheating chamber 11 can be selectively located at the same height as the second baking chamber 21 and one of the baking chambers 21 below the second baking chamber 21, the third preheating chamber 11 can be selectively located at the same height as the third baking chamber 21 and one of the baking chambers 21 below the third baking chamber 21, and so on.

[0075] The number of preheating chambers 11 is less than the number of baking chambers 21, and each preheating chamber 11 can continuously receive battery cells for preheating. After preheating, the battery cells can be sent to the baking chamber 21. Since the preheating time of the preheating chamber 11 is less than the baking time of the baking chamber 21, each preheating chamber 11 preheats the battery cells and then sends them to the baking chamber 21, and then continues to preheat the next batch of battery cells. Therefore, the battery cells can be continuously transferred to each baking chamber 21, and the cooperation of multiple preheating chambers 11 can quickly provide preheated battery cells to multiple baking chambers 21, which has high production efficiency and improves production rhythm.

[0076] Optionally, the preheating time of the preheating chamber 11 is about 1 minute, and the baking time of the baking chamber 21 is about 10 minutes.

[0077] The preheating temperature in the preheating chamber 11 is lower than the baking temperature in the baking chamber 21. Optionally, the preheating temperature in the preheating chamber 11 is about 100°C, and the baking temperature in the baking chamber 21 is about 140°C.

[0078] In some embodiments, the first conveying mechanism 12 includes a linear conveying mechanism. Optionally, the first conveying mechanism 12 includes a conveying belt, a conveying chain, a conveying roller or a push rod.

[0079] In some embodiments, the battery production system also includes a feeding device 4, which includes a first linear conveying mechanism 41. The first linear conveying mechanism 41 is configured to deliver the battery cells to the preheating chamber 11 through the first discharge door 14 when the preheating chamber 11 and the first linear conveying mechanism 41 are at the same height and the first feeding door 13 is opened.

[0080] The first linear conveying mechanism 41 is located at the same height as the preheating chamber 11, and when the first feed door 13 is opened, the battery cells are delivered to the preheating chamber 11 through the first discharge door 14. The linear conveying method can quickly deliver the battery cells to the preheating chamber 11, shorten the opening time of the feed door of the preheating chamber 11, avoid excessive heat loss in the preheating chamber 11, reduce power loss, and no longer need to set up a robotic arm to transport the battery cells, saving space and reducing the fragmentation rate of the battery cells.

[0081] In some embodiments, the number of preheating chambers 11 is at least two, and at least two preheating chambers 11 are arranged in sequence up and down; the battery production system also includes a first power mechanism 6 driven and connected to the preheating device 1, and the first power mechanism 6 is configured to drive the preheating device 1 to move up and down so that one of the at least two preheating chambers 11 is at the same height as the first linear conveying mechanism 41.

[0082] At least two preheating chambers 11 are arranged in sequence up and down. Each preheating chamber 11 can be located at the same height as the first linear conveying mechanism 41 under the drive of the first power mechanism 6 to receive battery cells, so that the first linear conveying mechanism 41 can continuously convey battery cells. Each preheating chamber 11 can receive battery cells in turn. After the battery cells are preheated, they are sent to the baking chamber 21 and continue to return to the first linear conveying mechanism 41 to wait for receiving the battery cells, thereby improving the smoothness of the work process and preventing the process flow from being disconnected.

[0083] Optionally, the number of the preheating chambers 11 is two or three, or more than three.

[0084] When there are two preheating chambers 11, by reasonably setting the conveying time of the first linear conveying mechanism 41, the time for the preheating chamber 11 to receive the first linear conveying mechanism 41, the preheating time of the preheating chamber 11, the time for the preheating chamber 11 to convey the battery cells to the baking chamber 21, etc., the two preheating chambers 11 can take turns to receive the battery cells conveyed by the first linear conveying mechanism 41 and take turns to convey the battery cells to the baking chamber 21, so as to meet the production rhythm and improve production efficiency.

[0085] When there are three preheating chambers 11, the conveying time of the first linear conveying mechanism 41, the time for the preheating chamber 11 to receive the first linear conveying mechanism 41, the preheating time of the preheating chamber 11, the time for the preheating chamber 11 to convey the battery cells to the baking chamber 21, etc. can be reasonably set, so that the three preheating chambers 11 can take turns to receive the battery cells conveyed by the first linear conveying mechanism 41 and take turns to convey the battery cells to the baking chamber 21. Compared with the case of two preheating chambers 11, after the preheating chamber 11 conveys the battery cells to the baking chamber 21, the temperature in the preheating chamber 11 can be restored, thereby improving the temperature stability in the preheating chamber 11.

[0086] The first linear conveying mechanism 41 includes a conveying belt, a conveying chain, a conveying roller or a push rod, etc.

[0087] In some embodiments, the battery production system further includes a cooling device 3 , which includes a cooling chamber 31 , the cooling chamber 31 has a third feeding door 33 and a third discharging door 34 , and a second conveying mechanism 22 is disposed in the baking chamber 21 .

[0088] The second conveying mechanism 22 is configured to convey the battery cells in the baking chamber 21 to the cooling chamber 31 through the second discharge door 24 and the third feed door 33 when the second discharge door 24 and the third feed door 33 are opposite to each other and are both opened.

[0089] When the second discharge door 24 and the third feed door 33 are opposite and both are open, the second conveying mechanism 22 conveys the battery cells in the baking chamber 21 to the cooling chamber 31 through the second discharge door 24 and the third feed door 33. The battery cells are conveyed from the baking chamber 21 to the cooling chamber 31 in a short time, which shortens the opening time of the discharge door of the baking chamber 21, reduces power loss, and has high conveying efficiency, which can improve production cycle. The second conveying mechanism 22 is arranged in the baking chamber 21, which reduces the floor space of the equipment, reduces the equipment failure rate, and improves the equipment reliability.

[0090] A second conveying mechanism 22 is provided in the baking chamber 21. When the first conveying mechanism 12 in the preheating chamber 11 conveys the battery cells in the preheating chamber 11 to the baking chamber 21, the second conveying mechanism 22 can cooperate to receive the battery cells and quickly convey the battery cells to a preset position in the baking chamber 21, thereby further shortening the time for conveying the battery cells from the preheating chamber 11 to the baking chamber 21, avoiding the temperature drop of the battery cells during the conveyance process, and reducing the impact of the temperature drop on the process performance.

[0091] In some embodiments, the second conveying mechanism 22 includes a linear conveying mechanism. Optionally, the second conveying mechanism 22 includes a conveying belt, a conveying chain, a conveying roller or a push rod.

[0092] In some embodiments, the number of baking cavities 21 is at least two, and at least two baking cavities 21 are arranged in sequence up and down; the battery production system also includes a second power mechanism 7 driven and connected to the cooling device 3, and the second power mechanism 7 is configured to drive the cooling device 3 to move up and down so that the cooling cavity 31 is at the same height as one of the at least two baking cavities 21.

[0093] The number of baking chambers 21 is at least two, which can improve the baking efficiency of the battery cells. The time for starting baking the battery cells in different baking chambers 21 is different, and the time for completing baking is also different. The cooling device 3 is driven up and down by the second power mechanism 7. After the battery cells in one of the baking chambers 21 are baked, the cooling chamber 31 is located at the same height as one of the baking chambers 21 to cool the battery cells in one of the baking chambers 21. After the battery cells in the other baking chamber 21 are baked, the cooling chamber 31 is located at the same height as the other baking chamber 21 to cool the battery cells in the other baking chamber 21, thereby improving production efficiency and meeting production rhythm.

[0094] Optionally, the cooling time in the cooling chamber 31 is about 1 minute, and the baking time in the baking chamber 21 is about 10 minutes. The baking temperature in the baking chamber 21 is about 140° C. The cooling temperature in the cooling chamber 31 is about 40° C.

[0095] In some embodiments, the second power mechanism 7 includes a second motor, a second lead screw 71 , a second nut and a second guide rod 72 .

[0096] The second end of the second lead screw 71 is connected to the second motor, and the second end of the second lead screw 71 is threadedly connected to the second nut. The second nut is fixed to the cooling device 3. The second motor provides power to rotate the second lead screw 71. The rotation of the second lead screw 71 causes the second nut to move up and down along the second lead screw, thereby driving the cooling device 3 to move up and down.

[0097] There are two second guide rods 72, and the two second guide rods 72 are respectively arranged on both sides of the second lead screw 71. The second ends of the second guide rods 72 are fixed, and the second ends of the second guide rods 72 are passed through the cooling device 3. The cooling device 3 moves up and down along the second guide rods 72, and the two second guide rods 72 guide the cooling device 3.

[0098] In some embodiments, the number of cooling cavities 31 is at least two, and at least two cooling cavities 31 are arranged in sequence up and down; the number of baking cavities 21 is at least two, and at least two baking cavities 21 are arranged in sequence up and down; one cooling cavity 31 among the at least two cooling cavities 31 is configured to be at the same height as one baking cavity 21 among the at least two baking cavities 21.

[0099] There are at least two baking cavities 21, and different baking cavities 21 start baking battery cells at different times and complete baking at different times. There are at least two cooling cavities 31. After one of the baking cavities 21 completes baking, one of the cooling cavities 31 can be located at the same height as the one of the baking cavities 21 to receive the battery cells in the one of the baking cavities 21 for cooling. After the other baking cavity 21 completes baking, the other cooling cavity 31 can be located at the same height as the other baking cavity 21 to receive the battery cells in the other baking cavity 21 for cooling, thereby improving production efficiency and meeting production rhythm.

[0100] In some embodiments, the battery production system also includes a second power mechanism 7 driven and connected to the cooling device 3, and the second power mechanism 7 is configured to drive the cooling device 3 to move up and down so that the cooling chamber 31 located at the top layer of at least two cooling chambers 31 can be selectively located at the same height as any one of the at least two baking chambers 21.

[0101] The second power mechanism 7 drives the cooling device 3 to move up and down. The cooling cavity 31 located at the topmost layer among the at least two cooling cavities 31 can be selectively located at the same height as any baking cavity 21 among the at least two baking cavities 21. The second power mechanism 7 drives the cooling device 3 to move, so that the cooling cavity 31 at the topmost layer of the cooling device 3 can be located at the same height as the baking cavity 21 at the topmost layer, so that all baking cavities 21 can have cooling cavities 31 corresponding to receiving battery cells, and the lifting height of the second power mechanism 7 will not be increased too much, thereby ensuring the stability of the center of gravity of the second power mechanism 7.

[0102] In some embodiments, the number of baking cavities 21 is greater than the number of cooling cavities 31, and the battery production system also includes a second power mechanism 7 driven and connected to the cooling device 3, and the second power mechanism 7 is configured to drive the cooling device 3 to move up and down, so that the nth cooling cavity 31 among the at least two cooling cavities 31 can be selectively located at the same height as the nth baking cavity 21 among the at least two baking cavities 21 and one of the baking cavities 21 below it; wherein n is an integer greater than zero, and is the nth arranged from top to bottom.

[0103] For example: the first cooling chamber 31 can be selectively located at the same height as the first baking chamber 21 and one of the baking chambers 21 below the first baking chamber 21, the second cooling chamber 31 can be selectively located at the same height as the second baking chamber 21 and one of the baking chambers 21 below the second baking chamber 21, the third cooling chamber 31 can be selectively located at the same height as the third baking chamber 21 and one of the baking chambers 21 below the third baking chamber 21, and so on.

[0104] The number of cooling chambers 31 is less than the number of baking chambers 21, and each cooling chamber 31 can continuously receive battery cells for cooling. After cooling, the battery cells can be sent to the discharge device 5 described below. Since the cooling time of the cooling chamber 31 is less than the baking time of the baking chamber 21, each cooling chamber 31 cools the battery cells and then sends them to the discharge device 5, and then continues to cool the next batch of battery cells, continuously receiving the battery cells transmitted by each baking chamber 21, and multiple cooling chambers 31 cooperate to quickly cool the battery cells baked in multiple baking chambers 21, which has high production efficiency and improves production rhythm.

[0105] In some embodiments, the battery production system further includes a discharge device 5 , and a third conveying mechanism 32 is disposed in the cooling chamber 31 .

[0106] The third conveying mechanism 32 is configured to convey the battery cells in the cooling chamber 31 to the discharging device 5 through the third discharging door 34 when the third discharging door 34 and the discharging device 5 are located at the same height and are open.

[0107] The third conveying mechanism 32 is arranged in the cooling chamber 31, which reduces the footprint of the equipment, reduces the equipment failure rate, and improves the reliability of the equipment.

[0108] A third conveying mechanism 32 is provided in the cooling chamber 31. When the second conveying mechanism 22 in the baking chamber 21 conveys the battery cells in the baking chamber 21 to the cooling chamber 31, the third conveying mechanism 32 can cooperate to receive the battery cells and quickly convey the battery cells to a preset position in the cooling chamber 31, thereby further shortening the time for conveying the battery cells from the baking chamber 21 to the cooling chamber 31, shortening the opening time of the discharge door of the baking chamber 21, reducing power loss, and the battery cells have high conveying efficiency, which can improve the production rhythm.

[0109] In some embodiments, the third conveying mechanism 32 includes a linear conveying mechanism. Optionally, the third conveying mechanism 32 includes a conveying belt, a conveying chain, a conveying roller or a push rod.

[0110] In some embodiments, the number of cooling chambers 31 is at least two, and at least two cooling chambers 31 are arranged in sequence up and down; the battery production system also includes a second power mechanism 7 driven and connected to the cooling device 3, and the second power mechanism 7 is configured to drive the cooling device 3 to move up and down so that one of the at least two cooling chambers 31 is at the same height as the discharge device 5.

[0111] At least two cooling chambers 31 are arranged in sequence up and down. Each cooling chamber 31 can be located at the same height as the discharge device 5 under the drive of the second power mechanism 7. Each cooling chamber 31 can take turns to send the cooled battery cells to the discharge device 5. The discharge device 5 can continuously output the battery cells, thereby improving the smoothness of the work process and preventing the process from being disconnected.

[0112] Optionally, the number of cooling chambers 31 is two or three, or more than three.

[0113] Optionally, the number of baking cavities 21 is 16 to 24.

[0114] In some embodiments, the discharging device 5 includes a second linear conveying mechanism 51. The second linear conveying mechanism 51 receives the battery cells conveyed by the third conveying mechanism 32 in the cooling chamber 31, and does not need to set up a mechanical arm to convey the battery cells, which can avoid occupying space, and the second linear conveying mechanism 51 cooperates with the third conveying mechanism 32 to shorten the speed of the cooling chamber 31 outputting the battery cells, which will not affect the cooling chamber 31 returning to receive the battery cells baked in the baking chamber 21, thereby improving production efficiency.

[0115] Optionally, the second linear conveying mechanism 51 includes a conveyor belt, a conveyor chain, a conveyor roller or a push rod.

[0116] Some embodiments of the present disclosure also provide a battery production method, which includes the following steps:

[0117] A battery production system is provided, the battery production system comprising: a preheating device 1, comprising a preheating chamber 11, a first conveying mechanism 12 is provided in the preheating chamber 11, the preheating chamber 11 has a first feeding door 13 and a first discharging door 14; and a baking device 2, comprising a baking chamber 21, the baking chamber 21 has a second feeding door 23 and a second discharging door 24;

[0118] The first discharge door 14 and the second feed door 23 are opposite to each other and both are opened; and

[0119] The battery cells in the preheating chamber 11 are transported to the baking chamber 21 through the first discharge door 14 and the second feed door 23 by the first conveying mechanism 12 .

[0120] In the above embodiment, when the first discharge door 14 and the second feed door 23 are opposite and both are open, the first conveying mechanism 12 conveys the battery cells in the preheating chamber 11 to the baking chamber 21 through the first discharge door 14 and the second feed door 23. The battery cells are conveyed from the preheating chamber 11 to the baking chamber 21 in a short time, which can reduce the temperature drop of the battery cells during the conveying process and avoid the influence of the temperature drop on the process performance. The battery cells are conveyed in a short time, the chamber door opening time is shortened, the power loss is reduced, the conveying efficiency is high, and the production cycle can be improved. Furthermore, the first conveying mechanism 12 is arranged in the preheating chamber 11, which can reduce the footprint of the equipment, reduce the equipment failure rate, and improve the equipment reliability.

[0121] In some embodiments, the number of the baking cavities 21 is at least two, and the at least two baking cavities 21 are arranged in sequence up and down;

[0122] The step of making the first discharge door 14 and the second feed door 23 face each other and both open comprises:

[0123] The preheating device 1 is driven up and down by the first power mechanism 6 so that the preheating chamber 11 and one of the at least two baking chambers 21 are located at the same height, and at this time, the first discharge door 14 of the preheating chamber 11 is opposite to the second discharge door 24 of one of the baking chambers 21; and

[0124] The first discharge door 14 and the second discharge door 24 are controlled to be opened.

[0125] The at least two baking chambers 21 are independent of each other, and each baking chamber 21 has a second material inlet door 23 and a second material outlet door 24. When the first power mechanism 6 drives the preheating device 1 to move up and down, the preheating chamber 11 and one of the at least two baking chambers 21 are located at the same height. During the process of transferring the battery cells from the preheating chamber 11 to the one of the baking chambers 21, the other baking chambers 21 of the at least two baking chambers 21 are still baking, and the temperature in the other baking chambers 21 will not be affected, thereby improving the baking efficiency and meeting the production cycle.

[0126] In some embodiments, the battery production system further includes a feeding device 4, the feeding device 4 includes a first linear conveying mechanism 41; the number of preheating chambers 11 is at least two, and at least two preheating chambers 11 are arranged in sequence up and down;

[0127] The battery production method further comprises the steps of:

[0128] The preheating device 1 is driven to move up and down by the first power mechanism 6 so that one of the at least two preheating chambers 11 and the first linear conveying mechanism 41 are located at the same height;

[0129] Open the first feed door 13;

[0130] The battery cells are transported to the preheating chamber 11 through the first discharging door 14 by the first linear transport mechanism 41 .

[0131] When the preheating chamber 11 and the first linear conveying mechanism 41 are at the same height and the first feed door 13 is opened, the first linear conveying mechanism 41 delivers the battery cells to the preheating chamber 11 through the first discharge door 14. This linear conveying method can quickly deliver the battery cells to the preheating chamber 11, shorten the time for the feed door of the preheating chamber 11 to be opened, avoid excessive heat loss in the preheating chamber 11, reduce power loss, and no longer need to set up a robotic arm to transport the battery cells, saving space and reducing the fragmentation rate.

[0132] In some embodiments, the battery production system further includes a cooling device 3, the cooling device 3 includes a cooling chamber 31, the cooling chamber 31 has a third feeding door 33 and a third discharging door 34, and a second conveying mechanism 22 is provided in the baking chamber 21;

[0133] The battery production method further comprises the steps of:

[0134] Make the second discharge door 24 and the third feed door 33 face each other and both open;

[0135] The battery cells in the baking chamber 21 are transported to the cooling chamber 31 through the second discharge door 24 and the third feed door 33 by the second conveying mechanism 22 .

[0136] When the second discharge door 24 and the third feed door 33 are opposite and both are open, the second conveying mechanism 22 conveys the battery cells in the baking chamber 21 to the cooling chamber 31 through the second discharge door 24 and the third feed door 33. The battery cells are conveyed from the baking chamber 21 to the cooling chamber 31 in a short time, which shortens the opening time of the discharge door of the baking chamber 21, reduces power loss, has high conveying efficiency, and can improve production cycle. The second conveying mechanism 22 is arranged in the baking chamber 21, which reduces the floor space of the equipment, reduces the equipment failure rate, and improves the equipment reliability.

[0137] A second conveying mechanism 22 is provided in the baking chamber 21. When the first conveying mechanism 12 in the preheating chamber 11 conveys the battery cells in the preheating chamber 11 to the baking chamber 21, the second conveying mechanism 22 can cooperate to receive the battery cells and quickly convey the battery cells to a preset position in the baking chamber 21, thereby further shortening the time for conveying the battery cells from the preheating chamber 11 to the baking chamber 21, avoiding the temperature drop of the battery cells during the conveyance process, and reducing the impact of the temperature drop on the process performance.

[0138] In some embodiments, the number of the baking cavities 21 is at least two, and the at least two baking cavities 21 are arranged in sequence up and down;

[0139] The step of making the second discharge door 24 and the third feed door 33 face each other and both open comprises:

[0140] The cooling device 3 is driven to move up and down by the second power mechanism 7, so that the cooling chamber 31 and one of the at least two baking chambers 21 are located at the same height. At this time, the third feeding door 33 of the cooling chamber 31 is opposite to the second discharging door 24 of one of the baking chambers 21;

[0141] The second discharge door 24 and the third discharge door 34 are opened.

[0142] The number of baking chambers 21 is at least two, which can improve the baking efficiency of the battery cells. Different baking chambers 21 start baking the battery cells at different times and complete baking at different times. The cooling device 3 is driven up and down by the second power mechanism 7. After the battery cells in one of the baking chambers 21 are baked, the cooling chamber 31 is located at the same height as the one of the baking chambers 21 to cool the battery cells in the one of the baking chambers 21. After the battery cells in the other baking chamber 21 are baked, the cooling chamber 31 is located at the same height as the other baking chamber 21 to cool the battery cells in the other baking chamber 21, thereby improving production efficiency and meeting production rhythm.

[0143] In some embodiments, the battery production system further includes a discharge device 5; a third conveying mechanism 32 is provided in the cooling cavity 31, the number of cooling cavities 31 is at least two, and at least two cooling cavities 31 are arranged in sequence up and down;

[0144] The battery production method further comprises the steps of:

[0145] The cooling chamber 31 device is driven to move up and down by the second power mechanism 7, so that one of the at least two cooling chambers 31 and the discharging device 5 are located at the same height;

[0146] Open the third discharge door 34;

[0147] The battery cells are conveyed to the discharging device 5 through the third discharging door 34 by the third conveying mechanism 32 .

[0148] The third conveying mechanism 32 is arranged in the cooling chamber 31, which reduces the footprint of the equipment, reduces the equipment failure rate, and improves the reliability of the equipment.

[0149] A third conveying mechanism 32 is provided in the cooling chamber 31. When the second conveying mechanism 22 in the baking chamber 21 conveys the battery cells in the baking chamber 21 to the cooling chamber 31, the third conveying mechanism 32 can cooperate to receive the battery cells and quickly convey the battery cells to a preset position in the cooling chamber 31, thereby further shortening the time for conveying the battery cells from the baking chamber 21 to the cooling chamber 31, shortening the opening time of the discharge door of the baking chamber 21, reducing power loss, and having high conveying efficiency, which can improve the production cycle.

[0150] Combine the following Figure 2 Some specific embodiments of the production method of the battery production system are described.

[0151] After the battery cells arrive at the feeding device 4, the preheating device 1 is driven by the first power mechanism 6 to move, so that the first layer of preheating chamber 11 from top to bottom of the preheating device 1 is lowered to the same height as the first linear conveying mechanism 41, the feeding door of the first layer of preheating chamber 11 is opened, and the battery cells enter the first layer of preheating chamber 11, the feeding door of the first layer of preheating chamber 11 is closed, and the preheating device 1 is driven by the first power mechanism 6 to move, and the second layer of preheating chamber 11 from top to bottom of the preheating device 1 is at the same height as the first linear conveying mechanism 41, waiting for the next batch of battery cells to enter.

[0152] When the battery cells in the preheating chamber 11 reach the set preheating time, the preheating device 1 moves under the drive of the first power mechanism 6, so that the preheating chamber 11 rises to the same height as the baking chamber 21 of the baking device 2, the discharge door of the preheating chamber 11 opens, and at the same time the feed door of the baking chamber 21 opens, and the first conveying mechanism 12 starts to deliver the battery cells into the baking chamber 21.

[0153] When the battery cells in the baking chamber 21 reach the set baking time, the second power mechanism 7 drives the cooling device 3 to move, so that a cooling chamber 31 of the cooling device 3 rises to the same height as the baking chamber 21 to be unloaded, and the discharge door of the baking chamber 21 and the feed door of the cooling chamber 31 are opened at the same time, and the battery cells are delivered to the cooling chamber 31 through the second conveying mechanism 22.

[0154] When the battery cells in the cooling chamber 31 are cooled to a set time, the second power mechanism 7 drives the cooling device 3 to move, so that the cooling chamber 31 descends to the same height as the second linear conveying mechanism 51 of the discharging device 5, the discharging door of the cooling chamber 31 opens, and the third conveying mechanism 32 delivers the battery cells to the second linear conveying mechanism 51, thereby completing the crystallization process of the entire battery cell.

[0155] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present application. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A battery production system, characterized in that: include: A preheating device (1) comprises at least two preheating chambers (11) arranged in sequence up and down, wherein a first conveying mechanism (12) is provided in the preheating chamber (11), and the preheating chamber (11) has a first feeding door (13) and a first discharging door (14); and A baking device (2), comprising at least two baking chambers (21) arranged in sequence up and down, the number of the baking chambers (21) being greater than the number of the preheating chambers (11), and the baking chamber (21) having a second material inlet door (23) and a second material outlet door (24); The first conveying mechanism (12) is configured to convey the battery cells in the preheating chamber (11) into the baking chamber (21) through the first discharge door (14) and the second feed door (23) when the first discharge door (14) and the second feed door (23) are opposite to each other and are both open; A first power mechanism (6) is drivingly connected to the preheating device (1), and the first power mechanism (6) is configured to drive the preheating device (1) to move up and down so that a preheating cavity (11) of the at least two preheating cavities (11) and a baking cavity (21) of the at least two baking cavities (21) are located at the same height.

2. The battery production system according to claim 1, characterized in that: The battery production system further comprises a first power mechanism (6) drivingly connected to the preheating device (1), wherein the first power mechanism (6) is configured to drive the preheating device (1) to move up and down, so that the uppermost preheating chamber (11) of the at least two preheating chambers (11) can be selectively located at the same height as any one of the at least two baking chambers (21).

3. The battery production system according to claim 1, characterized in that: The battery production system further comprises a first power mechanism (6) drivingly connected to the preheating device (1), the first power mechanism (6) being configured to drive the preheating device (1) to move up and down, so that an nth preheating chamber (11) of the at least two preheating chambers (11) can be selectively located at the same height as an nth baking chamber (21) of the at least two baking chambers (21) and one of the baking chambers (21) below the nth baking chamber (21); wherein n is an integer greater than zero and is the nth one arranged from top to bottom.

4. The battery production system according to any one of claims 1 to 3, characterized in that: The invention also comprises a feeding device (4), wherein the feeding device (4) comprises a first linear conveying mechanism (41), wherein the first linear conveying mechanism (41) is configured to be located at the same height as the preheating chamber (11), and when the first feeding door (13) is opened, the battery cells are conveyed into the preheating chamber (11) through the first discharging door (14).

5. The battery production system according to claim 4, characterized in that: The number of the preheating chambers (11) is at least two, and the at least two preheating chambers (11) are arranged in sequence up and down; the battery production system further comprises a first power mechanism (6) drivingly connected to the preheating device (1), the first power mechanism (6) being configured to drive the preheating device (1) to move up and down, so that one of the at least two preheating chambers (11) and the first linear conveying mechanism (41) are located at the same height.

6. The battery production system according to any one of claims 1 to 3, characterized in that: The invention also comprises a cooling device (3), wherein the cooling device (3) comprises a cooling chamber (31), wherein the cooling chamber (31) has a third feeding door (33) and a third discharging door (34), and wherein a second conveying mechanism (22) is arranged in the baking chamber (21), wherein the second conveying mechanism (22) is configured to convey the battery cells in the baking chamber (21) into the cooling chamber (31) through the second discharging door (24) and the third feeding door (33) when the second discharging door (24) and the third feeding door (33) are opposite to each other and are both open.

7. The battery production system according to claim 6, characterized in that: The number of the baking cavities (21) is at least two, and the at least two baking cavities (21) are arranged in sequence up and down; the battery production system further comprises a second power mechanism (7) drivingly connected to the cooling device (3), the second power mechanism (7) being configured to drive the cooling device (3) to move up and down, so that the cooling cavity (31) and one of the baking cavities (21) of the at least two baking cavities (21) are located at the same height.

8. The battery production system according to claim 6, characterized in that: The number of the cooling cavities (31) is at least two, and the at least two cooling cavities (31) are arranged in sequence up and down; the number of the baking cavities (21) is at least two, and the at least two baking cavities (21) are arranged in sequence up and down; and one cooling cavity (31) among the at least two cooling cavities (31) is configured to be located at the same height as one baking cavity (21) among the at least two baking cavities (21).

9. The battery production system according to claim 8, characterized in that: The battery production system further comprises a second power mechanism (7) drivingly connected to the cooling device (3), wherein the second power mechanism (7) is configured to drive the cooling device (3) to move up and down, so that the uppermost cooling chamber (31) of the at least two cooling chambers (31) can be selectively located at the same height as any one of the at least two baking chambers (21).

10. The battery production system according to claim 8, characterized in that: The number of the baking cavities (21) is greater than the number of the cooling cavities (31), and the battery production system further comprises a second power mechanism (7) drivingly connected to the cooling device (3), the second power mechanism (7) being configured to drive the cooling device (3) to move up and down, so that the nth cooling cavity (31) of the at least two cooling cavities (31) can be selectively located at the same height as the nth baking cavity (21) of the at least two baking cavities (21) and one of the baking cavities (21) below it; wherein n is an integer greater than zero and is the nth one arranged from top to bottom.

11. The battery production system according to claim 6, characterized in that: The invention also comprises a discharge device (5), wherein a third conveying mechanism (32) is arranged in the cooling chamber (31), and the third conveying mechanism (32) is configured to convey the battery cells in the cooling chamber (31) to the discharge device (5) through the third discharge door (34) when the third discharge door (34) and the discharge device (5) are located at the same height and are open.

12. The battery production system according to claim 11, characterized in that: The number of the cooling chambers (31) is at least two, and the at least two cooling chambers (31) are arranged in sequence up and down; the battery production system further comprises a second power mechanism (7) drivingly connected to the cooling device (3), the second power mechanism (7) being configured to drive the cooling device (3) to move up and down, so that one of the at least two cooling chambers (31) and the discharge device (5) are located at the same height.

13. A battery production method, characterized in that: The following steps are involved: A battery production system is provided, the battery production system comprising: a preheating device (1), comprising at least two preheating chambers (11) arranged in sequence up and down, wherein a first conveying mechanism (12) is provided in the preheating chamber (11), and the preheating chamber (11) has a first feeding door (13) and a first discharging door (14); and a baking device (2), comprising at least two baking chambers (21) arranged in sequence up and down, wherein the number of the baking chambers (21) is greater than the number of the preheating chambers (11), and the baking chamber (21) has a second feeding door (23) and a second discharging door (24); The preheating device (1) is driven to move up and down by a first power mechanism (6), so that one of the at least two preheating chambers (11) and one of the at least two baking chambers (21) are located at the same height, and at this time, the first discharge door (14) of the preheating chamber (11) and the second discharge door (24) of the one of the baking chambers (21) are opposite to each other; the first discharge door (14) and the second discharge door (24) are controlled to open; and The battery cells in the preheating chamber (11) are transported to the baking chamber (21) via the first discharge door (14) and the second feed door (23) by the first conveying mechanism (12).

14. The battery production method according to claim 13, characterized in that: The battery production system further comprises a feeding device (4), wherein the feeding device (4) comprises a first linear conveying mechanism (41); the number of the preheating chambers (11) is at least two, and the at least two preheating chambers (11) are arranged in sequence up and down; The battery production method further comprises the steps of: The preheating device (1) is driven to move up and down by a first power mechanism (6) so that one of the at least two preheating chambers (11) and the first linear conveying mechanism (41) are located at the same height; Opening the first feed door (13); The battery cells are transported to the preheating chamber (11) through the first linear transport mechanism (41) and the first discharge door (14).

15. The battery production method according to any one of claims 13 to 14, characterized in that: The battery production system further comprises a cooling device (3), the cooling device (3) comprising a cooling chamber (31), the cooling chamber (31) having a third feeding door (33) and a third discharging door (34), and a second conveying mechanism (22) is provided in the baking chamber (21); The battery production method further comprises the steps of: The second discharge door (24) and the third feed door (33) are arranged opposite to each other and are both opened; The second conveying mechanism (22) conveys the battery cells in the baking chamber (21) to the cooling chamber (31) via the second discharge door (24) and the third feed door (33).

16. The battery production method according to claim 15, characterized in that: The number of the baking cavities (21) is at least two, and the at least two baking cavities (21) are arranged in sequence up and down; The step of making the second discharge door (24) and the third feed door (33) face each other and both open comprises: The cooling device (3) is driven to move up and down by a second power mechanism (7), so that the cooling chamber (31) and one of the at least two baking chambers (21) are located at the same height, and at this time, the third feeding door (33) of the cooling chamber (31) is opposite to the second discharging door (24) of one of the baking chambers (21); The second discharge door (24) and the third discharge door (34) are opened.

17. The battery production method according to claim 15, characterized in that: The battery production system further comprises a discharge device (5); a third conveying mechanism (32) is provided in the cooling cavity (31); the number of the cooling cavities (31) is at least two, and the at least two cooling cavities (31) are arranged in sequence up and down; The battery production method further comprises the steps of: The cooling chamber (31) device is driven to move up and down by a second power mechanism (7) so that one of the at least two cooling chambers (31) and the discharge device (5) are located at the same height; Opening the third discharge door (34); The battery cells are conveyed to the discharge device (5) through the third discharge door (34) by the third conveying mechanism (32).

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