Battery monomer insulating layer processing equipment and battery monomer insulating layer processing method

Abstract

The invention provides battery monomer insulating layer processing equipment and a battery monomer insulating layer processing method, and belongs to the technical field of batteries. The battery monomer insulating layer processing equipment comprises a surface treatment device and an insulating layer coating device. The surface treatment device is used for treating at least part of the outer surface of the shell so that the at least part of the outer surface of the shell can form a rough surface. And the insulating layer coating device is arranged at the downstream of the surface treatment device and comprises a spraying mechanism, and the spraying mechanism is used for spraying an insulating material on the rough surface so as to form an insulating layer on the outer surface of the shell. On one hand, the outer surface of the shell can be roughened firstly, the coating amount and adhesive force of an insulating layer can be improved, on the other hand, the effect of the insulating layer formed by spraying the outer surface of the shell through the spraying mechanism is good, the phenomena of wrinkles or bubbles and the like of the insulating layer on the outer surface of the shell can be relieved, and the service life of the shell is prolonged. The quality of insulation treatment on the outer surface of the shell of the battery monomer is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a battery cell insulation layer processing device and a battery cell insulation layer processing method. BACKGROUND

[0002] In recent years, new energy vehicles have made a great leap in development. In the field of electric vehicles, power batteries, as the power source of electric vehicles, play an irreplaceable important role. With the vigorous promotion of new energy vehicles, the demand for power battery products is also increasing. Among them, the battery usually includes a box body and a battery cell contained in the box body. In the production process of the battery cell, the outer surface of the shell of the battery cell needs to be insulated to improve the safety of the battery cell during use. However, the effect of the existing technology for insulating the outer surface of the battery cell is not good, and the processing efficiency is low, which is not conducive to improving the production quality and production efficiency of the battery cell. SUMMARY

[0003] The embodiments of the present application provide a battery cell insulation layer processing device and a battery cell insulation layer processing method, which can effectively improve the production quality and production efficiency of the battery cell.

[0004] In a first aspect, the embodiments of the present application provide a battery cell insulation layer processing device, the battery cell including a shell, the battery cell insulation layer processing device including a surface treatment device and an insulation layer coating device; the surface treatment device is used to treat at least part of the outer surface of the shell, so that at least part of the outer surface of the shell forms a rough surface; the insulation layer coating device is arranged downstream of the surface treatment device, and the insulation layer coating device includes a spraying mechanism, the spraying mechanism is used to spray an insulating material on the rough surface to form an insulation layer on the outer surface of the shell.

[0005] In the technical scheme, the battery cell insulation layer processing equipment is provided with a surface treatment device for roughening the outer surface of the shell and an insulation layer coating device for spraying insulation material on the roughened outer surface of the shell, so that at least part of the outer surface of the shell can form a rough surface and the outer surface of the shell can form an insulation layer, thereby realizing insulation layer processing of the outer surface of the shell. The battery cell insulation layer processing equipment with the structure can perform insulation processing on the outer surface of the shell of the battery cell. On the one hand, the outer surface of the shell that needs insulation processing can be roughened, which is beneficial to improve the coating amount and adhesion of the insulation layer on the outer surface of the shell, improve the stability and reliability of the insulation layer arranged on the outer surface of the shell, and effectively improve the insulation processing effect of the outer surface of the shell of the battery cell. On the other hand, the spraying mechanism of the insulation layer coating device can spray insulation material on the outer surface of the shell to form an insulation layer, which can replace the structure of pasting an insulation film on the outer surface of the shell, thereby relieving the phenomenon of wrinkles or bubbles of the insulation layer on the outer surface of the shell, reducing the difficulty of arranging the insulation layer on the outer surface of the shell, and improving the quality of insulation processing of the outer surface of the shell of the battery cell, the production quality of the battery cell, and the production efficiency of the battery cell.

[0006] In some embodiments, the insulation layer coating device further comprises a curing mechanism; the curing mechanism is arranged downstream of the spraying mechanism, and the curing mechanism is used for curing the insulation layer on the outer surface of the shell.

[0007] In the technical scheme, the insulation layer coating device is further provided with a curing mechanism, and the curing mechanism is located downstream of the spraying mechanism. After the spraying mechanism sprays insulation material on the outer surface of the shell of the battery cell to form an insulation layer, the curing mechanism can further cure the insulation layer, thereby further improving the firmness of the insulation layer on the outer surface of the shell, reducing the phenomenon of falling or being scratched of the insulation layer, and further improving the quality of insulation processing of the outer surface of the shell of the battery cell, the production quality of the battery cell, and the production efficiency of the battery cell.

[0008] In some embodiments, the curing mechanism comprises a curing bin, a conveying mechanism, and an ultraviolet light emitter; the conveying mechanism is used for receiving the battery cell processed by the spraying mechanism and conveying the battery cell into the curing bin; the ultraviolet light emitter is arranged in the curing bin, and the ultraviolet light emitter is configured to emit ultraviolet light and irradiate the battery cell on the conveying mechanism to cure the insulation layer on the outer surface of the shell.

[0009] In the technical scheme, the solidification mechanism is provided with a solidification bin, a transfer mechanism and a UV light emitter arranged in the solidification bin. The battery monomer processed by the spraying mechanism can be transferred to the solidification bin by the transfer mechanism, so that the UV light emitter can irradiate the battery monomer with ultraviolet light, thereby realizing the solidification of the insulating layer on the outer surface of the shell of the battery monomer. The solidification mechanism with the structure is convenient for solidifying the insulating layer, which is conducive to reducing the difficulty of solidifying the insulating layer. The solidification of the insulating layer by ultraviolet irradiation can improve the quality of solidifying the insulating layer, thereby effectively improving the processing quality of the insulating layer on the outer surface of the shell of the battery monomer.

[0010] In some embodiments, the spraying mechanism comprises a placing table and a spray head; the placing table is used for placing the battery monomer; and the spray head is used for spraying the insulating material on at least the outer surface of the side of the shell away from the placing table.

[0011] In the technical scheme, the spraying mechanism is provided with a placing table and a spray head. The placing table can place and receive the battery monomer, so that the spray head can spray the insulating material on the battery monomer placed on the placing table, thereby realizing the processing of the insulating layer on the outer surface of the shell by the spraying mechanism. The spraying mechanism with the structure is convenient for the spray head to spray the insulating material on the battery monomer, which is conducive to alleviating the phenomenon of battery monomer shaking or moving during the spraying of the insulating material by the spray head, thereby improving the quality of spraying the insulating material on the outer surface of the shell of the battery monomer by the spraying mechanism.

[0012] In some embodiments, the spraying mechanism comprises two first spraying mechanisms and a second spraying mechanism arranged downstream of the first spraying mechanisms; and the insulating layer coating device further comprises a first transfer mechanism arranged between the first spraying mechanisms and the second spraying mechanism, the first transfer mechanism being used for picking up the battery monomer processed by the first spraying mechanisms, and placing the battery monomer on the placing table of the second spraying mechanism after turning over the battery monomer.

[0013] In the technical scheme, the insulating layer coating device is provided with two spraying mechanisms and a first transfer mechanism arranged between the two spraying mechanisms. After the first spraying mechanism sprays the insulating material on part of the outer surface of the shell of the battery monomer and forms an insulating layer, the first transfer mechanism can transfer the battery monomer processed by the first spraying mechanism to the placing table of the second spraying mechanism, and can also turn over the battery monomer, so that the second spraying mechanism can spray the outer surface of the side of the shell of the battery monomer facing the placing table on the placing table of the first spraying mechanism, thereby realizing the processing of the insulating layer on multiple outer surfaces of the shell of the battery monomer.

[0014] In some embodiments, the insulation layer coating device further comprises two curing mechanisms for curing the insulation layer on the outer surface of the shell; wherein the two curing mechanisms comprise a first curing mechanism and a second curing mechanism, the first curing mechanism is arranged between the first spraying mechanism and the second spraying mechanism, and the second curing mechanism is arranged downstream of the second spraying mechanism, and the first transfer mechanism is used to pick up the battery monomer processed by the first curing mechanism, and place the battery monomer on the placement table of the second spraying mechanism after turning over the battery monomer.

[0015] In the above technical solution, the insulation layer coating device is provided with two curing mechanisms, and the two curing mechanisms are respectively arranged corresponding to one spraying mechanism, and each curing mechanism is arranged downstream of the corresponding spraying mechanism. Therefore, after the two spraying mechanisms respectively spray insulation materials on the outer surface of the shell of the battery monomer and form the insulation layer, the two curing mechanisms can respectively cure the insulation layer sprayed by the corresponding spraying mechanism, so as to further improve the firmness of the insulation layer attached to the outer surface of the shell, and reduce the phenomenon that the insulation layer falls off or is scratched, thereby facilitating further improving the quality of the insulation treatment on the outer surface of the shell of the battery monomer, and improving the production quality of the battery monomer.

[0016] In some embodiments, the insulation layer coating device further comprises a second transfer mechanism; the second transfer mechanism is arranged between the surface treatment device and the first spraying mechanism, and is used to pick up the battery monomer processed by the surface treatment device and place the battery monomer on the placement table of the first spraying mechanism.

[0017] In the above technical solution, the insulation layer coating device is further provided with a second transfer mechanism between the surface treatment device and the first spraying mechanism. The battery monomer processed by the surface treatment device can be transferred to the placement table of the first spraying mechanism by the second transfer mechanism. The insulation layer coating device with such a structure can reduce the difficulty of transferring the battery monomer between the surface treatment device and the first spraying mechanism, and reduce the participation of manual work, thereby facilitating improving the automation degree of the battery monomer insulation layer processing equipment, and effectively improving the production efficiency of the battery monomer insulation layer processing equipment.

[0018] In some embodiments, the spraying mechanism is a UV printer.

[0019] In the technical scheme, the UV printer is used to spray the insulating material on the outer surface of the shell of the battery monomer to form the insulating layer on the outer surface of the shell of the battery monomer, the spraying mechanism with the structure can improve the quality of the insulating layer formed on the outer surface of the shell of the battery monomer, and is beneficial to improving the effect of insulating treatment on the outer surface of the shell of the battery monomer, so that the quality problems such as wrinkles or bubbles of the insulating layer on the outer surface of the shell of the battery monomer can be improved.

[0020] In some embodiments, the surface treatment device comprises a conveying mechanism and a plurality of laser emitters; the conveying mechanism is used to convey the battery monomer to the insulating layer coating device; the plurality of laser emitters are configured to generate laser and irradiate at least one outer surface of the shell to treat at least part of the outer surface of the shell.

[0021] In the technical scheme, the surface treatment device is provided with the conveying mechanism and the plurality of laser emitters, the outer surface of the shell of the battery monomer on the conveying mechanism can be irradiated by the plurality of laser emitters to achieve rough treatment of at least part of the outer surface of the shell, the surface treatment device with the structure can treat the plurality of outer surfaces of the shell by the plurality of laser emitters, which is beneficial to improving the efficiency of treatment on the outer surface of the shell of the battery monomer, and the laser irradiation treatment of the outer surface of the shell by the laser emitters can also clean the outer surface of the shell to some extent to remove impurities or grease on the outer surface of the shell, so as to further improve the adhesion of the insulating layer on the outer surface of the shell and further improve the stability and reliability of the insulating layer arranged on the outer surface of the shell.

[0022] In some embodiments, the shell comprises a first outer surface, a second outer surface, a third outer surface, a fourth outer surface and a fifth outer surface, the first outer surface is placed on the conveying mechanism, the second outer surface, the third outer surface, the fourth outer surface and the fifth outer surface are sequentially arranged around the first outer surface, the second outer surface and the fourth outer surface are oppositely arranged, and the third outer surface and the fifth outer surface are oppositely arranged; wherein the plurality of laser emitters comprises two first laser emitters and two second laser emitters, the two first laser emitters are respectively used for laser irradiation of the second outer surface and the fourth outer surface, and the two second laser emitters are respectively used for laser irradiation of the third outer surface and the fifth outer surface.

[0023] In the technical scheme, the plurality of laser emitters of the surface treatment device comprises two first laser emitters and two second laser emitters, so that the two first laser emitters can respectively treat the second outer surface and the fourth outer surface of the shell, and the two second laser emitters can respectively treat the third outer surface and the fifth outer surface of the shell, so as to treat the second outer surface, the third outer surface, the fourth outer surface and the fifth outer surface surrounding the first outer surface among the outer surfaces of the shell, and the quality of the insulation layer arranged on the second outer surface, the third outer surface, the fourth outer surface and the fifth outer surface of the shell is improved.

[0024] In some embodiments, the first laser emitters and the second laser emitters are arranged at intervals along the conveying direction of the conveying mechanism, two first laser emitters are arranged on two sides of the conveying mechanism in a first direction, and two second laser emitters are arranged on two sides of the conveying mechanism in the first direction; wherein a rotating mechanism is arranged on the conveying mechanism, the rotating mechanism is located between the first laser emitters and the second laser emitters in the conveying direction of the conveying mechanism, the rotating mechanism is used to drive the battery monomer to rotate 90 degrees around an axis in a vertical direction, and the conveying direction of the conveying mechanism, the first direction and the vertical direction are perpendicular to each other.

[0025] In the technical scheme, two first laser emitters are arranged on two sides of the conveying mechanism in a first direction, and two second laser emitters are arranged on two sides of the conveying mechanism in the first direction. By arranging the laser emitters at intervals along the conveying direction of the conveying mechanism, and arranging a rotating mechanism between the first laser emitters and the second laser emitters, the battery monomer arranged on the conveying mechanism can be rotated 90 degrees around an axis in a vertical direction by the rotating mechanism after being irradiated by the first laser emitters, so that the second laser emitters can irradiate and treat the third outer surface and the fifth outer surface of the shell. The structure is simple, and the processing efficiency of the battery monomer is improved.

[0026] In some embodiments, the conveying mechanism further comprises a turnover mechanism, the turnover mechanism is used to pick up the battery monomer and drive the battery monomer to turn around an axis extending in the first direction; wherein the plurality of laser emitters further comprises a third laser emitter, the third laser emitter is used to irradiate the first outer surface with laser.

[0027] In the technical scheme, the conveying mechanism is further provided with a turnover mechanism, and the plurality of laser emitters further includes a third laser emitter, so that after the turnover mechanism turns the battery monomer around the axis extending in the first direction, the third laser emitter can also perform laser irradiation processing on the first outer surface of the battery monomer placed on the conveying mechanism, thereby improving the quality of the insulation layer arranged on the first outer surface of the shell.

[0028] In some embodiments, the battery monomer insulation layer processing equipment further comprises a detection device; the detection device is arranged downstream of the insulation layer coating device, and the detection device is used to detect the thickness of the insulation layer on the outer surface of the shell.

[0029] In the technical scheme, the battery monomer insulation layer processing equipment is further provided with a detection device downstream of the insulation layer coating device, and the thickness of the insulation layer coated on the outer surface of the shell of the battery monomer can be detected by the detection device, so as to obtain the processing quality of the insulation layer on the outer surface of the shell of the battery monomer, thereby facilitating the operator to repair and process the unqualified battery monomer.

[0030] In a second aspect, the embodiments of the present application also provide a battery monomer insulation layer processing method, comprising: step S100: processing at least part of the outer surface of the shell to clean at least part of the outer surface of the shell and form a rough surface on at least part of the outer surface of the shell; and step S200: spraying an insulation material on the rough surface to form an insulation layer on the outer surface of the shell.

[0031] In the technical scheme, the processing method can first roughen the outer surface of the shell of the battery monomer, then spray the insulation material on the roughened outer surface of the shell to form the insulation layer, so as to insulate the outer surface of the shell of the battery monomer. On the one hand, the roughened outer surface of the shell can be insulated, which is beneficial to improve the coating amount and adhesion of the insulation layer on the outer surface of the shell, thereby improving the stability and reliability of the insulation layer arranged on the outer surface of the shell, and effectively improving the insulation effect of the outer surface of the shell of the battery monomer. On the other hand, the insulation layer formed by spraying the insulation material on the outer surface of the shell has good effect, which can replace the process of pasting an insulation film on the outer surface of the shell, thereby alleviating the phenomenon of wrinkles or bubbles on the insulation layer on the outer surface of the shell, and reducing the difficulty of arranging the insulation layer on the outer surface of the shell, thereby improving the quality of the insulation process of the outer surface of the shell of the battery monomer, improving the production quality of the battery monomer, and reducing the processing difficulty of the battery monomer, thereby improving the production efficiency of the battery monomer.

[0032] In some embodiments, after step S200, the battery cell insulation layer processing method further includes: step S300, curing the insulation layer on the outer surface of the shell.

[0033] In the above technical solution, after the insulation layer is formed on the outer surface of the shell of the battery cell by spraying the insulation material, the insulation layer is cured, which is beneficial to further improve the firmness of the insulation layer on the outer surface of the shell, and can reduce the phenomenon of falling or being scratched of the insulation layer, thereby being beneficial to further improve the quality of the insulation treatment on the outer surface of the shell of the battery cell, and improving the production quality of the battery cell. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0035] Figure 1 A structural schematic diagram of a battery cell insulation layer processing device provided by some embodiments of the present application is shown in the figure.

[0036] Figure 2 A structural schematic diagram of an insulation layer coating device provided by some embodiments of the present application is shown in the figure.

[0037] Figure 3 A structural schematic diagram of a surface treatment device provided by some embodiments of the present application is shown in the figure.

[0038] Figure 4 A structural schematic diagram of a battery cell provided by some embodiments of the present application is shown in the figure.

[0039] Figure 5 A flowchart of a battery cell insulation layer processing method provided by some embodiments of the present application is shown in the figure.

[0040] Icon: 100 - battery cell insulating layer processing equipment; 10 - surface treatment device; 11 - conveying mechanism; 111 - rotating mechanism; 112 - overturning mechanism; 12 - laser emitter; 121 - first laser emitter; 122 - second laser emitter; 123 - third laser emitter; 20 - insulating layer coating device; 21 - spraying mechanism; 211 - spray head; 212 - first spraying mechanism; 213 - second spraying mechanism; 22 - curing mechanism; 221 - first curing mechanism; 222 - second curing mechanism; 23 - first transfer mechanism; 24 - second transfer mechanism; 30 - detection device; 40 - battery cell; 41 - shell; 411 - end cover; 412 - housing; 413 - first outer surface; 414 - second outer surface; 415 - third outer surface; 416 - fourth outer surface; 417 - fifth outer surface; 418 - sixth outer surface; 42 - electrode terminal; X - conveying direction of conveying mechanism; Y - first direction; Z - vertical direction. DETAILED DESCRIPTION

[0041] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0042] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application and the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0043] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase at various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment to the other embodiments.

[0044] In the description of the present application, it should be noted that unless specifically defined and limited otherwise, the terms "mounting", "connected", "connection", "attached" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be directly connected, or indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] The term "and / or" in the present application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the present application generally represents that the front and rear associated objects have an "or" relationship.

[0046] In the embodiments of the present application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the present application shown in the drawings, and the overall thickness, length and width of the integrated device are only exemplary and should not constitute any limitation on the present application.

[0047] "Multiple" appearing in the present application means more than two (including two).

[0048] In the embodiments of the present application, the battery cell can be a secondary battery, which refers to a battery cell that can be activated by charging after discharging.

[0049] The battery cell can be a lithium ion battery, a sodium ion battery, a sodium lithium ion battery, a lithium metal battery, a sodium metal battery, a lithium sulfur battery, a magnesium ion battery, a nickel hydrogen battery, a nickel cadmium battery, a lead-acid battery, etc. The embodiments of the present application are not limited thereto.

[0050] The battery cell generally includes an electrode assembly. The electrode assembly includes a positive electrode, a negative electrode, and a separator. During the charging and discharging process of the battery cell, active ions (such as lithium ions) are inserted and extracted between the positive electrode and the negative electrode. The separator is arranged between the positive electrode and the negative electrode, which can prevent the positive and negative electrodes from short-circuiting, and at the same time, the active ions can pass through.

[0051] In some embodiments, the battery cell can include a housing. The housing is used to package the electrode assembly and other components such as electrolyte. The housing can be a steel shell, an aluminum shell, a composite metal shell (such as a copper-aluminum composite shell), etc.

[0052] As an example, the battery cell can be a cylindrical battery cell, a prismatic battery cell, a pouch battery cell, or other shaped battery cell, the prismatic battery cell including but not limited to a square battery cell, a blade battery cell, a multi-prismatic battery cell, for example, a hexagonal battery cell, etc.

[0053] For a general battery cell, during the production process of the battery cell, the outer surface of the shell of the battery cell needs to be insulated to improve the safety of the battery cell during use. In the related art, the outer surface of the shell of the battery cell is usually insulated by pasting an insulating film on the outer surface of the shell of the battery cell, that is, the insulating film is bonded to the outer surface of the shell of the battery cell by a glue layer such as glue or adhesive tape. However, the existing battery cell production line is prone to have the insulating film wrinkled or have bubbles during the process of pasting the insulating film, which results in poor effect of insulating the outer surface of the battery cell. If the insulating film is wrinkled or has bubbles, the insulating film needs to be reworked, which seriously affects the production efficiency of the battery cell and greatly wastes manpower and materials.

[0054] Based on the above considerations, in order to solve the problems of poor production quality and low production efficiency of the battery cell, the embodiments of the present application provide a battery cell insulating layer processing equipment. The battery cell insulating layer processing equipment includes a surface treatment device and an insulating layer coating device. The surface treatment device is used to treat at least part of the outer surface of the shell to form a rough surface on at least part of the outer surface of the shell. The insulating layer coating device is arranged downstream of the surface treatment device. The insulating layer coating device includes a spraying mechanism for spraying an insulating material on the rough surface to form an insulating layer on the outer surface of the shell.

[0055] In the battery cell insulation layer processing equipment with the structure, the battery cell insulation layer processing equipment is provided with a surface treatment device for rough processing on the outer surface of the shell and an insulation layer coating device for spraying the insulation material on the outer surface of the shell after the rough processing, so that at least part of the outer surface of the shell can form a rough surface, and the insulation layer can be formed on the outer surface of the shell, thereby realizing the insulation layer processing on the outer surface of the shell. The battery cell insulation layer processing equipment with the structure can perform insulation processing on the outer surface of the shell of the battery cell. On the one hand, the rough processing can be performed on the outer surface of the shell that needs insulation processing, which is beneficial to improve the coating amount and adhesion of the insulation layer on the outer surface of the shell, improve the stability and reliability of the insulation layer arranged on the outer surface of the shell, and effectively improve the effect of the insulation processing on the outer surface of the shell of the battery cell. On the other hand, the spraying mechanism of the insulation layer coating device can spray the insulation layer formed by the insulation material on the outer surface of the shell, which has a good effect and can replace the structure of pasting the insulation film on the outer surface of the shell, thereby relieving the phenomenon of wrinkles or bubbles of the insulation layer on the outer surface of the shell, reducing the difficulty of arranging the insulation layer on the outer surface of the shell, and improving the quality of the insulation processing on the outer surface of the shell of the battery cell, the production quality of the battery cell, and the processing difficulty of the battery cell and the production efficiency of the battery cell.

[0056] The battery cell insulation layer processing equipment provided by the embodiments of the present application can improve the poor effect and low processing efficiency of the insulation processing on the outer surface of the battery cell. The specific structure of the battery cell insulation layer processing equipment will be described in detail below with reference to the accompanying drawings.

[0057] According to some embodiments of the present application, referring to Figure 1 , Figure 2 , Figure 3 and Figure 4 , Figure 1 FIG. 1 is a structural schematic diagram of a battery cell insulation layer processing equipment 100 provided by some embodiments of the present application, Figure 2 FIG. 2 is a structural schematic diagram of an insulation layer coating device 20 provided by some embodiments of the present application, Figure 3 FIG. 3 is a structural schematic diagram of a surface treatment device 10 provided by some embodiments of the present application, Figure 4This is a schematic diagram of the structure of a battery cell 40 provided in some embodiments of this application. This application provides a battery cell insulation layer processing apparatus 100. The battery cell 40 includes a housing 41. The battery cell insulation layer processing apparatus 100 includes a surface treatment device 10 and an insulation layer coating device 20. The surface treatment device 10 is used to process at least a portion of the outer surface of the housing 41 to form a rough surface. The insulation layer coating device 20 is disposed downstream of the surface treatment device 10. The insulation layer coating device 20 includes a spraying mechanism 21, which is used to spray an insulating material onto the rough surface to form an insulating layer on the outer surface of the housing 41.

[0058] Among them, Figure 4 In this battery cell 40, a housing 41, an electrode assembly (not shown), and electrode terminals 42 are included. The housing 41 includes an end cap 411 and a shell 412. The shell 412 has an open cavity inside, and the end cap 411 closes to the opening. The electrode assembly is housed within the shell 41. The electrode terminals 42 are disposed on the end cap 411 and are electrically connected to the electrode assembly to enable the input or output of electrical energy from the battery cell 40. There are two electrode terminals 42 with opposite polarities, both disposed on the end cap 411, and each electrode terminal 42 is connected to the positive and negative tabs of the electrode assembly, respectively.

[0059] For example, the outer casing 41 of the battery cell 40 has a cuboid structure. The outer surface of the outer casing 41 includes six outer surfaces: a first outer surface 413, a second outer surface 414, a third outer surface 415, a fourth outer surface 416, a fifth outer surface 417, and a sixth outer surface 418. The electrode terminal 42 is disposed on the sixth outer surface 418. That is, the surface of the end cap 411 facing away from the interior of the outer casing 41 is the sixth outer surface 418, the first outer surface 413 is the outer surface of the outer casing 41 facing away from the sixth outer surface 418, and the second outer surface 414, the third outer surface 415, the fourth outer surface 416, and the fifth outer surface 417... The outer surfaces are arranged sequentially around the first outer surface 413, and the second outer surface 414 and the fourth outer surface 416 are located on opposite sides of the outer shell 41, the third outer surface 415 and the fifth outer surface 417 are located on opposite sides of the outer shell 41, the first outer surface 413 and the sixth outer surface 418 are parallel, the second outer surface 414 and the fourth outer surface 416 are parallel, the third outer surface 415 and the fifth outer surface 417 are parallel, the first outer surface 413 and the second outer surface 414 are perpendicular to each other, the first outer surface 413 and the third outer surface 415 are perpendicular to each other, and the second outer surface 414 and the third outer surface 415 are perpendicular to each other.

[0060] In the embodiment of the present application, the surface treatment device 10 and the coating device need to process and coat the insulating layer on the five surfaces of the shell 41 which are not provided with the electrode terminal 42, that is, the surface treatment device 10 and the coating device need to process and coat the insulating layer on the first outer surface 413, the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the shell 41. Exemplarily, the second outer surface 414 and the fourth outer surface 416 are the surfaces with the largest area among the outer surfaces of the shell 41.

[0061] The surface treatment device 10 is configured to process at least part of the outer surface of the shell 41, so that at least part of the outer surface of the shell 41 forms a rough surface, that is, the surface treatment device 10 can perform rough processing on at least part of the outer surface of the shell 41, so that at least part of the outer surface of the shell 41 forms a rough surface. Exemplarily, in the embodiment of the present application, the surface treatment device 10 is configured to perform rough processing on the first outer surface 413, the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the shell 41, so that the first outer surface 413, the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the shell 41 all form rough surfaces, that is, the surface treatment device 10 is configured to form micro grooves on the first outer surface 413, the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the shell 41, so as to increase the roughness of the first outer surface 413, the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the shell 41.

[0062] It should be noted that the surface treatment device 10 is also configured to clean the outer surface of the shell 41 of the battery monomer 40 to remove impurities or grease on the outer surface of the shell 41.

[0063] The insulating layer coating device 20 is arranged downstream of the surface treatment device 10, that is, in the processing direction of the battery monomer 40, the insulating layer coating device 20 is located downstream of the surface treatment device 10, that is, the battery monomer 40 is processed by the surface treatment device 10 first, and then enters the insulating layer coating device 20 for processing.

[0064] The spraying mechanism 21 is configured to spray the insulating material on the rough surface to form an insulating layer on the outer surface of the shell 41, that is, the spraying mechanism 21 plays a role of spraying the insulating material on the rough surface of the shell 41, so that the insulating material sprayed by the spraying mechanism 21 can form an insulating layer on the outer surface of the shell 41, thereby realizing the insulating treatment of the outer surface of the shell 41.

[0065] Exemplarily, the insulating material sprayed by the spraying mechanism 21 can be various, such as epoxy acrylate resin, polyurethane acrylate resin, polyester acrylate resin, polyether acrylate resin, polypropylene acrylate, unsaturated polyester resin, etc., that is, the material of the insulating layer can be epoxy acrylate resin, polyurethane acrylate resin, polyester acrylate resin, polyether acrylate resin, polypropylene acrylate, unsaturated polyester resin, etc.

[0066] Optionally, the structure of the spraying mechanism 21 can be various, such as a UV printer or a spray gun, etc.

[0067] In the embodiment, the battery cell insulating layer processing equipment 100 is provided with the surface treatment device 10 for roughening the outer surface of the shell 41 and the insulating layer coating device 20 for spraying the insulating material on the outer surface of the shell 41 after the roughening, so that at least part of the outer surface of the shell 41 can form a rough surface, and the insulating layer can be formed on the outer surface of the shell 41, thereby realizing the insulating layer treatment of the outer surface of the shell 41. The battery cell insulating layer processing equipment 100 with such a structure insulates the outer surface of the shell 41 of the battery cell 40. On the one hand, the outer surface of the shell 41 that needs to be insulated is roughened first, which is beneficial to improve the coating amount and adhesion of the insulating layer on the outer surface of the shell 41, to improve the stability and reliability of the insulating layer arranged on the outer surface of the shell 41, and to effectively improve the effect of insulating the outer surface of the shell 41 of the battery cell 40. On the other hand, the spraying mechanism 21 of the insulating layer coating device 20 sprays the insulating material to form an insulating layer on the outer surface of the shell 41, which has a good effect and can replace the structure of pasting an insulating film on the outer surface of the shell 41, thereby relieving the phenomenon of wrinkles or bubbles of the insulating layer on the outer surface of the shell 41, and reducing the difficulty of arranging the insulating layer on the outer surface of the shell 41, thereby improving the quality of insulating the outer surface of the shell 41 of the battery cell 40, improving the production quality of the battery cell 40, and reducing the processing difficulty of the battery cell 40 to improve the production efficiency of the battery cell 40.

[0068] According to some embodiments of the present application, referring to Figure 2 As shown in the figure, the insulating layer coating device 20 can further include a curing mechanism 22 arranged downstream of the spraying mechanism 21, and the curing mechanism 22 is used to cure the insulating layer on the outer surface of the shell 41.

[0069] The curing mechanism 22 is arranged downstream of the spraying mechanism 21, that is, in the processing direction of the battery monomer 40, the curing mechanism 22 is located downstream of the spraying mechanism 21, that is, the battery monomer 40 is processed by the spraying mechanism 21 first, and then enters the curing mechanism 22 for processing.

[0070] It should be noted that if the insulation layer coating device 20 is provided with only one spraying mechanism 21, only one curing mechanism 22 needs to be arranged downstream of the spraying mechanism 21; if the insulation layer coating device 20 is provided with multiple spraying mechanisms 21, the curing mechanism 22 can be one or multiple, and can be arranged downstream of the multiple spraying mechanisms 21 or arranged downstream of each spraying mechanism 21.

[0071] Exemplarily, in the insulation layer coating device 20, two spraying mechanisms 21 are arranged in sequence along the processing direction of the battery monomer 40, and the insulation layer coating device 20 is provided with two curing mechanisms 22, and each curing mechanism 22 is arranged downstream of a spraying mechanism 21. Figure 2

[0072] Optionally, the structure of the curing mechanism 22 can be various, which can be cured by irradiating the insulation layer with ultraviolet light, or cured by high temperature or other ways.

[0073] In the embodiment, the insulation layer coating device 20 is also provided with a curing mechanism 22, and the curing mechanism 22 is located downstream of the spraying mechanism 21, so that after the spraying mechanism 21 sprays the insulation material on the outer surface of the shell 41 of the battery monomer 40 to form an insulation layer, the curing mechanism 22 can also cure the insulation layer to further improve the firmness of the insulation layer attached to the outer surface of the shell 41, and can reduce the phenomenon that the insulation layer falls off or is scratched, thereby facilitating further improving the quality of the insulation treatment of the outer surface of the shell 41 of the battery monomer 40, and improving the production quality of the battery monomer 40.

[0074] In some embodiments, the curing mechanism 22 can include a curing chamber, a conveying mechanism and an ultraviolet light emitter. The conveying mechanism is used to receive the battery monomer 40 processed by the spraying mechanism 21 and convey the battery monomer 40 into the curing chamber. The ultraviolet light emitter is arranged in the curing chamber, and the ultraviolet light emitter is configured to emit ultraviolet light and irradiate the battery monomer 40 on the conveying mechanism to cure the insulation layer on the outer surface of the shell 41.

[0075] ​The transfer mechanism functions to receive and transfer the battery monomer 40, and can be a belt conveyor, a plate conveyor, a roller conveyor, or the like. Of course, the transfer mechanism can also be a four-axis robot or a six-axis robot, or the like.

[0076] The ultraviolet light emitter functions to generate ultraviolet light and irradiate the insulating layer on the outer surface of the shell 41 of the battery monomer 40. The structure of the ultraviolet light emitter can be various, such as an LED ultraviolet light curing lamp, and the like. Exemplarily, the curing energy of the ultraviolet light emitted by the ultraviolet light emitter is 20,000 mj / cm 2 to 30,000 mj / cm 2 .

[0077] In the embodiment, the curing mechanism 22 is provided with a curing bin, a transfer mechanism, and an ultraviolet light emitter arranged in the curing bin. The battery monomer 40 processed by the spraying mechanism 21 can be transferred into the curing bin by the transfer mechanism, so that the ultraviolet light emitter can irradiate the battery monomer 40 with ultraviolet light, thereby curing the insulating layer on the outer surface of the shell 41 of the battery monomer 40. The curing mechanism 22 with such a structure facilitates the curing of the insulating layer, is conducive to reducing the difficulty of curing the insulating layer, and can improve the quality of the curing of the insulating layer by irradiating the insulating layer with ultraviolet light, thereby effectively improving the processing quality of the insulating layer on the outer surface of the shell 41 of the battery monomer 40.

[0078] According to some embodiments of the present application, referring to Figure 2 The spraying mechanism 21 can include a placement table (not shown in the figure) and a spray head 211. The placement table is used to place the battery monomer 40, and the spray head 211 is used to spray the insulating material on at least the outer surface of the side of the shell 41 away from the placement table.

[0079] The placement table functions to place the battery monomer 40, so that one of the plurality of outer surfaces of the shell 41 of the battery monomer 40 faces the placement table, so that the spray head 211 of the spraying mechanism 21 sprays the insulating material on the other outer surfaces of the shell 41 of the battery monomer 40 and forms the insulating layer.

[0080] Optionally, each spraying mechanism 21 can be provided with one or more spray heads 211. When the spraying mechanism 21 is provided with a plurality of spray heads 211, the spraying mechanism 21 can spray the insulating material on the plurality of outer surfaces of the shell 41 of the battery monomer 40 and form the insulating layer.

[0081] In the embodiment, the spraying mechanism 21 is provided with a placing table and a spraying head 211, the placing table is capable of placing and receiving the battery monomer 40, so that the spraying head 211 can spray the insulating material on the battery monomer 40 placed on the placing table, so as to realize the processing of the insulating layer on the outer surface of the shell 41. The spraying mechanism 21 with the structure is convenient for the spraying head 211 to spray the insulating material on the battery monomer 40, which is conducive to alleviating the phenomenon that the battery monomer 40 shakes or moves in the process of spraying the insulating material by the spraying head 211, so as to improve the quality of spraying the insulating material on the outer surface of the shell 41 of the battery monomer 40 by the spraying mechanism 21.

[0082] According to some embodiments of the present application, please continue to refer to Figure 2 As shown in the figure, the spraying mechanism 21 is two, two spraying mechanisms 21 include a first spraying mechanism 212 and a second spraying mechanism 213, the second spraying mechanism 213 is arranged downstream of the first spraying mechanism 212. The insulating layer coating device 20 further comprises a first transfer mechanism 23, the first transfer mechanism 23 is arranged between the first spraying mechanism 212 and the second spraying mechanism 213, the first transfer mechanism 23 is used to pick up the battery monomer 40 processed by the first spraying mechanism 212, and after turning over the battery monomer 40, the battery monomer 40 is placed on the placing table of the second spraying mechanism 213.

[0083] Among them, in combination with Figure 4As shown, when the battery cell 40 is placed on the placement table of the first spraying mechanism 212, the second outer surface 414 of the outer shell 41 of the battery cell 40 faces the placement table of the first spraying mechanism 212, that is, the second outer surface 414 of the outer shell 41 of the battery cell 40 is placed on the placement table of the first spraying mechanism 212, and the first spraying mechanism 212 is provided with four spray heads 211, so that the four spray heads 211 of the first spraying mechanism 212 can respectively spray the first outer surface 413, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the outer shell 41 of the battery cell 40 with insulating material and form insulating layers. After the first spraying mechanism 212 is processed, the first transfer mechanism 23 can pick up the battery cell 40 processed by the first spraying mechanism 212, and place the battery cell 40 on the placement table of the second spraying mechanism 213 after turning over the battery cell 40, so that the fourth outer surface 416 of the outer shell 41 of the battery cell 40 faces the placement table of the second spraying mechanism 213, that is, the fourth outer surface 416 of the outer shell 41 of the battery cell 40 is placed on the placement table of the second spraying mechanism 213, so that the spray head 211 of the second spraying mechanism 213 can spray the remaining second outer surface 414 of the outer surface of the outer shell 41 of the battery cell 40 with insulating material and form an insulating layer, thereby realizing the processing of the insulating layers on the first outer surface 413, the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the outer shell 41 of the battery cell 40.

[0084] Optionally, the structure of the first transfer mechanism 23 can be various, such as a four-axis robot or a six-axis robot, etc.

[0085] In the embodiment, the insulating layer coating device 20 is provided with two spraying mechanisms 21 and the first transfer mechanism 23 arranged between the two spraying mechanisms 21, so that after the first spraying mechanism 212 sprays the partial outer surface of the outer shell 41 of the battery cell 40 with insulating material and forms an insulating layer, the first transfer mechanism 23 can transfer the battery cell 40 processed by the first spraying mechanism 212 to the placement table of the second spraying mechanism 213, and also turn over the battery cell 40, so that the second spraying mechanism 213 can spray the outer surface of the outer shell 41 of the battery cell 40 on the side facing the placement table of the placement table of the first spraying mechanism 212, thereby realizing the processing of the insulating layers on the multiple outer surfaces of the outer shell 41 of the battery cell 40.

[0086] In some embodiments, referring to Figure 2As shown, the insulation layer coating device 20 further comprises two curing mechanisms 22, which are used to cure the insulation layer on the outer surface of the shell 41. The two curing mechanisms 22 comprise a first curing mechanism 221 and a second curing mechanism 222, the first curing mechanism 221 is arranged between the first spraying mechanism 212 and the second spraying mechanism 213, and the second curing mechanism 222 is arranged downstream of the second spraying mechanism 213. The first transfer mechanism 23 is used to pick up the battery monomer 40 processed by the first curing mechanism 221, and place the battery monomer 40 on the placement table of the second spraying mechanism 213 after turning over the battery monomer 40.

[0087] In the processing direction of the battery monomer 40, the first spraying mechanism 212, the first curing mechanism 221, the first transfer mechanism 23, the second spraying mechanism 213 and the second curing mechanism 222 are arranged in sequence, so that the first transfer mechanism 23 can pick up the battery monomer 40 processed by the first curing mechanism 221, and place the battery monomer 40 on the placement table of the second spraying mechanism 213 after turning over the battery monomer 40.

[0088] In this embodiment, the insulation layer coating device 20 is provided with two curing mechanisms 22, which are respectively arranged corresponding to one spraying mechanism 21, and each curing mechanism 22 is arranged downstream of the corresponding spraying mechanism 21. Therefore, after the two spraying mechanisms 21 respectively spray the insulation material on the outer surface of the shell 41 of the battery monomer 40 and form the insulation layer, the two curing mechanisms 22 can also respectively cure the insulation layer sprayed by the corresponding spraying mechanism 21, so as to further improve the firmness of the insulation layer attached to the outer surface of the shell 41, and reduce the phenomenon that the insulation layer falls off or is scratched, thereby facilitating further improving the quality of the insulation treatment on the outer surface of the shell 41 of the battery monomer 40, and improving the production quality of the battery monomer 40.

[0089] According to some embodiments of the present application, please continue to refer to Figure 2 As shown, the insulation layer coating device 20 can further comprise a second transfer mechanism 24, which is arranged between the surface treatment device 10 and the first spraying mechanism 212. The second transfer mechanism 24 is used to pick up the battery monomer 40 processed by the surface treatment device 10, and place the battery monomer 40 on the placement table of the first spraying mechanism 212.

[0090] The second transfer mechanism 24 plays a role in transferring the battery monomer 40 processed by the surface treatment device 10 to the placement table of the first spraying mechanism 212. The structure of the second transfer mechanism 24 can be various, for example, the second transfer mechanism 24 can be a four-axis robot or a six-axis robot.

[0091] In the embodiment, the insulation layer coating device 20 is further provided with a second transfer mechanism 24 between the surface treatment device 10 and the first spraying mechanism 212, and the battery monomer 40 processed by the surface treatment device 10 can be transferred to the placing table of the first spraying mechanism 212 through the second transfer mechanism 24. The insulation layer coating device 20 with the structure can reduce the difficulty of transferring the battery monomer 40 between the surface treatment device 10 and the first spraying mechanism 212, reduce the manual participation, and improve the automation degree of the battery monomer insulation layer processing equipment 100, thereby effectively improving the production efficiency of the battery monomer insulation layer processing equipment 100.

[0092] According to some embodiments of the application, the spraying mechanism 21 is a UV printer. The specific structure of the UV printer can be referred to the related technology, which will not be described here.

[0093] In the embodiment, the UV printer is used to spray the insulation material on the outer surface of the shell 41 of the battery monomer 40 to form an insulation layer on the outer surface of the shell 41 of the battery monomer 40. The spraying mechanism 21 with the structure can improve the quality of the insulation layer formed on the outer surface of the shell 41 of the battery monomer 40, which is beneficial to improve the insulation treatment effect of the outer surface of the shell 41 of the battery monomer 40, thereby improving the quality problems such as wrinkles or bubbles of the insulation layer on the outer surface of the shell 41 of the battery monomer 40.

[0094] According to some embodiments of the application, referring to Figure 3 As shown in the figure, the surface treatment device 10 can include a conveying mechanism 11 and a plurality of laser emitters 12. The conveying mechanism 11 is used to convey the battery monomer 40 to the insulation layer coating device 20, and the plurality of laser emitters 12 are configured to generate laser and irradiate at least one outer surface of the shell 41 to process at least part of the outer surface of the shell 41.

[0095] The conveying mechanism 11 is used to convey the battery monomer 40 from the feeding position to the insulation layer coating device 20, so that the laser emitters 12 can perform laser irradiation treatment on the battery monomer 40 placed on the conveying mechanism 11. For example, the structure of the conveying mechanism 11 can be various, such as a belt conveyor, a plate face conveyor or a roller conveyor.

[0096] For example, in combination with Figure 4 As shown in the figure, when the battery monomer 40 is placed on the conveying mechanism 11, the first outer surface 413 of the shell 41 of the battery monomer 40 faces the conveying mechanism 11, that is, the first outer surface 413 of the shell 41 of the battery monomer 40 is placed on the conveying mechanism 11.

[0097] It should be noted that the rough surface of the outer surface of the shell 41 of the battery monomer 40 is formed by the laser emitted by the laser emitter 12, and the outer surface of the shell 41 of the battery monomer 40 can also be cleaned to remove impurities or grease on the outer surface of the shell 41 of the battery monomer 40.

[0098] Exemplarily, in the embodiment of the present application, the laser emitter 12 is a multimode laser, the power of the laser emitter 12 is 1000w to 1500w, the pulse width of the laser emitter 12 is 300ns to 400ns, and the frequency of the laser emitter 12 is 30KHz to 70KHz.

[0099] In the embodiment, the surface treatment device 10 is provided with the conveying mechanism 11 and a plurality of laser emitters 12, and the plurality of laser emitters 12 can irradiate the outer surface of the shell 41 of the battery monomer 40 on the conveying mechanism 11 with laser to roughen at least part of the outer surface of the shell 41. The surface treatment device 10 with such a structure can on the one hand process a plurality of outer surfaces of the shell 41 through the plurality of laser emitters 12, which is beneficial to improving the efficiency of processing the outer surface of the shell 41 of the battery monomer 40, and on the other hand, the laser irradiation of the outer surface of the shell 41 by the laser emitter 12 can also clean the outer surface of the shell 41 to some extent to remove impurities or grease on the outer surface of the shell 41, thereby further improving the adhesion of the insulating layer on the outer surface of the shell 41 to further improve the stability and reliability of the insulating layer arranged on the outer surface of the shell 41.

[0100] According to some embodiments of the present application, as shown in Figure 3 and Figure 4 The shell 41 includes a first outer surface 413, a second outer surface 414, a third outer surface 415, a fourth outer surface 416 and a fifth outer surface 417, the first outer surface 413 is placed on the conveying mechanism 11, the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 are sequentially arranged around the first outer surface 413, the second outer surface 414 and the fourth outer surface 416 are oppositely arranged, and the third outer surface 415 and the fifth outer surface 417 are oppositely arranged. The plurality of laser emitters 12 includes two first laser emitters 121 and two second laser emitters 122, the two first laser emitters 121 are respectively used for laser irradiation of the second outer surface 414 and the fourth outer surface 416, and the two second laser emitters 122 are respectively used for laser irradiation of the third outer surface 415 and the fifth outer surface 417.

[0101] In this embodiment, the surface treatment apparatus 10 includes two first laser emitters 121 and two second laser emitters 122 among its plurality of laser emitters 121. The two first laser emitters 121 are able to process the second outer surface 414 and the fourth outer surface 416 of the housing 41 respectively, and the two second laser emitters 122 are able to process the third outer surface 415 and the fifth outer surface 417 of the housing 41 respectively. This process can improve the quality of the insulating layer disposed on the second outer surface 414, the third outer surface 415, the fourth outer surface 416 and the fifth outer surface 417 of the housing 41.

[0102] In some embodiments, please continue to see Figure 3 and Figure 4 As shown, the first laser emitter 121 and the second laser emitter 122 are spaced apart along the conveying direction X of the conveying mechanism. The two first laser emitters 121 are respectively located on both sides of the conveying mechanism 11 in the first direction Y, and the two second laser emitters 122 are respectively located on both sides of the conveying mechanism 11 in the first direction Y. A rotating mechanism 111 is provided on the conveying mechanism 11. The rotating mechanism 111 is located between the first laser emitters 121 and the second laser emitters 122 in the conveying direction X of the conveying mechanism. The rotating mechanism 111 is used to drive the battery cell 40 to rotate 90 degrees around the axis in the vertical direction Z. The conveying direction X, the first direction Y, and the vertical direction Z of the conveying mechanism are perpendicular to each other.

[0103] The conveying direction X of the conveying mechanism is also the processing direction of the battery cell 40.

[0104] The first laser emitter 121 and the second laser emitter 122 are arranged at intervals along the conveying direction X of the conveying mechanism, that is, the second laser emitter 122 is located downstream of the first laser emitter 121, so that the conveying mechanism 11 first conveys the battery cell 40 through the first laser emitter 121 and then through the second laser emitter 122.

[0105] The conveying mechanism 11 is equipped with a rotating mechanism 111. The rotating mechanism 111 is located between the first laser emitter 121 and the second laser emitter 122 in the conveying direction X of the conveying mechanism. That is, the battery cell 40 is processed by the first laser emitter 121 under the conveying action of the conveying mechanism 11, then rotated by the rotating mechanism 111, and then processed by the second laser emitter 122 under the conveying action of the conveying mechanism 11.

[0106] Exemplarily, before the battery cell 40 is rotated by the rotating mechanism 111, the first outer surface 413 of the shell 41 of the battery cell 40 is placed on the conveying mechanism 11, and the second outer surface 414 and the fourth outer surface 416 of the shell 41 of the battery cell 40 are oppositely arranged in the first direction Y, so that the two first laser emitters 121 located on both sides of the conveying mechanism 11 in the first direction Y can respectively perform laser irradiation treatment on the second outer surface 414 and the fourth outer surface 416 of the shell 41 of the battery cell 40. After the battery cell 40 is rotated by 90 degrees around the axis extending in the vertical direction Z by the rotating mechanism 111, the third outer surface 415 and the fifth outer surface 417 of the shell 41 of the battery cell 40 can be oppositely arranged in the first direction Y, so that the two second laser emitters 122 located on both sides of the conveying mechanism 11 in the first direction Y can respectively perform laser irradiation treatment on the third outer surface 415 and the fifth outer surface 417 of the shell 41 of the battery cell 40.

[0107] Optionally, the rotating mechanism 111 can have various structures. For example, the rotating mechanism 111 can include a first driving member and a rotating table. The rotating table is rotatably arranged on the conveying mechanism 11 around an axis extending in the vertical direction Z, and is used to place the battery cell 40. The output end of the first driving member is connected to the rotating table, and the first driving member is configured to drive the rotating table to rotate. Exemplarily, the first driving member can be a motor or a hydraulic motor.

[0108] In this embodiment, the two first laser emitters 121 are respectively arranged on both sides of the conveying mechanism 11 in the first direction Y, and the two second laser emitters 122 are respectively arranged on both sides of the conveying mechanism 11 in the first direction Y. By arranging the laser emitters 12 at intervals along the conveying direction X of the conveying mechanism, and arranging the rotating mechanism 111 between the first laser emitters 121 and the second laser emitters 122, the battery cell 40 placed on the conveying mechanism 11 can be rotated by 90 degrees around the axis extending in the vertical direction Z by the rotating mechanism 111 after being irradiated by the first laser emitters 121, so as to enable the second laser emitters 122 to perform laser irradiation treatment on the third outer surface 415 and the fifth outer surface 417 of the shell 41. The structure is simple, and the processing efficiency of the battery cell 40 can be improved.

[0109] According to some embodiments of the present application, as shown in Figure 3 and Figure 4 The conveying mechanism 11 is further provided with a turnover mechanism 112. The turnover mechanism 112 is used to pick up the battery cell 40 and drive the battery cell 40 to turn around an axis extending in the first direction Y. The plurality of laser emitters 12 further include a third laser emitter 123. The third laser emitter 123 is used to irradiate the first outer surface 413.

[0110] The turnover mechanism 112 is configured to pick up the battery monomer 40 and rotate the battery monomer 40 around the axis extending along the first direction Y, so that the first outer surface 413 of the outer shell 41 of the battery monomer 40 can be separated from the conveying mechanism 11, and the third laser emitter 123 can perform the laser irradiation process on the first outer surface 413 of the outer shell 41 of the battery monomer 40.

[0111] For example, the turnover mechanism 112 is arranged above the conveying mechanism 11 in the vertical direction Z and is configured to rotate the battery monomer 40 around the axis extending along the first direction Y by 180 degrees, so that the first outer surface 413 of the outer shell 41 of the battery monomer 40 can be located on the side of the outer shell 41 away from the conveying mechanism 11 in the vertical direction Z under the action of the turnover mechanism 112. Correspondingly, the third laser emitter 123 is arranged above the turnover mechanism 112 in the vertical direction Z, so that the third laser emitter 123 can perform the laser irradiation process on the first outer surface 413 of the outer shell 41 of the battery monomer 40.

[0112] Optionally, the turnover mechanism 112 can have various structures, such as a three-axis robot, a four-axis robot, or a six-axis robot.

[0113] In this embodiment, the conveying mechanism 11 is also provided with the turnover mechanism 112, and the plurality of laser emitters 12 further includes the third laser emitter 123. After the turnover mechanism 112 turns the battery monomer 40 around the axis extending along the first direction Y, the third laser emitter 123 can also perform the laser irradiation process on the first outer surface 413 of the battery monomer 40 placed on the conveying mechanism 11, thereby improving the quality of the insulation layer arranged on the first outer surface 413 of the outer shell 41.

[0114] According to some embodiments of the present application, referring to Figure 1 As shown in the figure, the battery monomer insulation layer processing equipment 100 can further include a detection device 30 arranged downstream of the insulation layer coating device 20. The detection device 30 is used to detect the thickness of the insulation layer on the outer surface of the outer shell 41.

[0115] The detection device 30 is configured to detect the thickness of the insulation layer on the outer surface of the outer shell 41. The detection device 30 can have various structures, such as a film thickness tester.

[0116] In the embodiment, the battery cell insulation layer processing device 100 is further provided with a detection device 30 downstream of the insulation layer coating device 20, the thickness of the insulation layer coated on the outer surface of the shell 41 of the battery cell 40 can be detected by the detection device 30, so as to obtain the processing quality of the insulation layer on the outer surface of the shell 41 of the battery cell 40, thereby facilitating the operator to repair the unqualified battery cell 40.

[0117] According to some embodiments of the present application, referring to Figure 5 , Figure 5 A flowchart of a battery cell 40 insulation layer processing method provided by some embodiments of the present application is provided, and the present application further provides a battery cell 40 insulation layer processing method, which comprises:

[0118] Step S100: processing at least part of the outer surface of the shell 41 to clean at least part of the outer surface of the shell 41 and form a rough surface on at least part of the outer surface of the shell 41;

[0119] Step S200: spraying an insulation material on the rough surface to form an insulation layer on the outer surface of the shell 41.

[0120] In step S100, the outer surface of the shell 41 can be processed by laser irradiation to clean the outer surface of the shell 41 and roughen the outer surface of the shell 41.

[0121] In step S200, the insulation material can be sprayed on the outer surface of the shell 41 by UV printing technology to form an insulation layer on the outer surface of the shell 41 of the battery cell 40.

[0122] It should be noted that the battery cell 40 insulation layer processing method provided by the embodiments of the present application is applicable to the battery cell insulation layer processing device 100 of any of the above schemes.

[0123] In this embodiment, the processing method can be used to first roughen the outer surface of the shell 41 of the battery monomer 40, then spray the insulating material on the roughened outer surface of the shell 41 to form an insulating layer, and insulate the outer surface of the shell 41 of the battery monomer 40. On the one hand, the outer surface of the shell 41 that needs to be insulated can be roughened first, which is beneficial to improve the coating amount and adhesion of the insulating layer on the outer surface of the shell 41, thereby improving the stability and reliability of the insulating layer on the outer surface of the shell 41, and effectively improving the effect of insulating the outer surface of the shell 41 of the battery monomer 40. On the other hand, the insulating layer formed by spraying the insulating material on the outer surface of the shell 41 has good effect, which can replace the process of pasting an insulating film on the outer surface of the shell 41, thereby alleviating the phenomenon of wrinkles or bubbles on the insulating layer on the outer surface of the shell 41, and reducing the difficulty of setting the insulating layer on the outer surface of the shell 41. Therefore, it is beneficial to improve the quality of insulating the outer surface of the shell 41 of the battery monomer 40, improve the production quality of the battery monomer 40, and reduce the processing difficulty of the battery monomer 40, thereby improving the production efficiency of the battery monomer 40.

[0124] In some embodiments, please continue to refer to Figure 5 As shown in FIG. 10, after step S200, the battery monomer 40 insulating layer processing method can further include:

[0125] Step S300: curing the insulating layer on the outer surface of the shell 41.

[0126] In step S300, the insulating layer on the outer surface of the shell 41 can be cured by ultraviolet light irradiation.

[0127] In this embodiment, after spraying the insulating material on the outer surface of the shell 41 of the battery monomer 40 to form an insulating layer, the insulating layer is cured, which is beneficial to further improve the firmness of the insulating layer attached to the outer surface of the shell 41, and can reduce the phenomenon of falling or being scratched of the insulating layer, thereby further improving the quality of insulating the outer surface of the shell 41 of the battery monomer 40, and improving the production quality of the battery monomer 40.

[0128] 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.

[0129] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A battery cell insulation layer processing device, wherein the battery cell includes a shell, characterized in that, The battery cell insulation layer processing equipment includes: A surface treatment apparatus for treating at least a portion of the outer surface of the housing to form a rough surface on at least a portion of the outer surface of the housing; An insulating layer coating apparatus is disposed downstream of the surface treatment apparatus. The insulating layer coating apparatus includes a spraying mechanism for spraying an insulating material onto the rough surface to form an insulating layer on the outer surface of the housing.

2. The battery cell insulation layer processing equipment according to claim 1, characterized in that, The insulating layer coating device further includes: A curing mechanism is located downstream of the spraying mechanism, and the curing mechanism is used to cure the insulating layer on the outer surface of the housing.

3. The battery cell insulation layer processing equipment according to claim 2, characterized in that, The curing mechanism includes: Solidification chamber; A transfer mechanism is used to receive the battery cells processed by the spraying mechanism and transfer the battery cells to the curing chamber. An ultraviolet light emitter is disposed within the curing chamber. The ultraviolet light emitter is configured to emit ultraviolet light and irradiate the battery cells on the transfer mechanism to cure the insulating layer on the outer surface of the housing.

4. The battery cell insulation layer processing equipment according to claim 1, characterized in that, The spraying mechanism includes: A placement platform for placing the battery cells; A nozzle, used at least to spray the insulating material onto the outer surface of the housing on the side opposite to the placement platform.

5. The battery cell insulation layer processing equipment according to claim 4, characterized in that, There are two spraying mechanisms, including a first spraying mechanism and a second spraying mechanism, with the second spraying mechanism located downstream of the first spraying mechanism. The insulating layer coating device further includes a first transfer mechanism, which is disposed between the first spraying mechanism and the second spraying mechanism. The first transfer mechanism is used to pick up the battery cell processed by the first spraying mechanism, flip the battery cell, and place the battery cell on the placement table of the second spraying mechanism.

6. The battery cell insulation layer processing equipment according to claim 5, characterized in that, The insulating layer coating device further includes two curing mechanisms, which are used to cure the insulating layer on the outer surface of the housing; The two curing mechanisms include a first curing mechanism and a second curing mechanism. The first curing mechanism is located between the first spraying mechanism and the second spraying mechanism, and the second curing mechanism is located downstream of the second spraying mechanism. The first transfer mechanism is used to pick up the battery cell after it has been processed by the first curing mechanism, flip the battery cell, and place the battery cell on the placement platform of the second spraying mechanism.

7. The battery cell insulation layer processing equipment according to claim 5, characterized in that, The insulating layer coating device further includes: A second transfer mechanism is disposed between the surface treatment device and the first spraying mechanism. The second transfer mechanism is used to pick up the battery cell after it has been processed by the surface treatment device and place the battery cell on the placement table of the first spraying mechanism.

8. The battery cell insulation layer processing equipment according to claim 1, characterized in that, The spraying mechanism is a UV printer.

9. The battery cell insulation layer processing equipment according to any one of claims 1-8, characterized in that, The surface treatment apparatus includes: A conveying mechanism for conveying the battery cells to the insulating layer coating device; Multiple laser emitters are configured to generate lasers and irradiate at least one outer surface of the housing to treat at least a portion of the outer surface of the housing.

10. The battery cell insulation layer processing equipment according to claim 9, characterized in that, The outer shell includes a first outer surface, a second outer surface, a third outer surface, a fourth outer surface, and a fifth outer surface. The first outer surface is placed on the conveying mechanism. The second outer surface, the third outer surface, the fourth outer surface, and the fifth outer surface are sequentially arranged around the first outer surface. The second outer surface and the fourth outer surface are arranged opposite to each other, and the third outer surface and the fifth outer surface are arranged opposite to each other. The plurality of laser emitters include two first laser emitters and two second laser emitters. The two first laser emitters are used to irradiate the second outer surface and the fourth outer surface with lasers, respectively, and the two second laser emitters are used to irradiate the third outer surface and the fifth outer surface with lasers, respectively.

11. The battery cell insulation layer processing equipment according to claim 10, characterized in that, The first laser emitter and the second laser emitter are spaced apart along the conveying direction of the conveying mechanism. The two first laser emitters are respectively disposed on both sides of the conveying mechanism in the first direction, and the two second laser emitters are respectively disposed on both sides of the conveying mechanism in the first direction. The conveying mechanism is equipped with a rotating mechanism, which is located between the first laser emitter and the second laser emitter in the conveying direction of the conveying mechanism. The rotating mechanism is used to drive the battery cell to rotate 90 degrees around an axis in the vertical direction. The conveying direction of the conveying mechanism, the first direction, and the vertical direction are perpendicular to each other.

12. The battery cell insulation layer processing equipment according to claim 11, characterized in that, The conveying mechanism is also provided with a flipping mechanism, which is used to pick up the battery cell and drive the battery cell to flip around an axis extending along the first direction. The plurality of laser emitters includes a third laser emitter, which is used to irradiate the first outer surface with a laser.

13. The battery cell insulation layer processing equipment according to claim 1, characterized in that, The battery cell insulation layer processing equipment also includes: A detection device is disposed downstream of the insulation coating device, and the detection device is used to detect the thickness of the insulation layer on the outer surface of the housing.

14. A method for processing an insulating layer in a battery cell, wherein the battery cell includes a casing, characterized in that, include: Step S100: At least a portion of the outer surface of the housing is processed to clean the at least a portion of the outer surface of the housing and to form a rough surface on the at least a portion of the outer surface of the housing; Step S200: Spray an insulating material onto the rough surface to form an insulating layer on the outer surface of the housing.

15. The method for processing the insulating layer of a battery cell according to claim 14, characterized in that, After step S200, the battery cell insulation layer processing method further includes: Step S300: Curing the insulating layer on the outer surface of the housing.

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