Battery insulation ink-jet production line

Abstract

The utility model discloses a battery insulation ink-jet production line which can effectively isolate aluminum powder particles generated by laser cleaning so as to avoid affecting the printing effect. The battery insulation ink-jet production line is arranged in a multi-section mode and at least comprises a cleaning section branch line, a side face printing section branch line and an end face printing section branch line, and the cleaning section branch line, the side face printing section branch line and the end face printing section branch line are sequentially arranged in the front-back direction. The cleaning section branch line, the side face printing section branch line and the end face printing section branch line are each provided with a machine shell to be isolated from one another, the cleaning section branch line conducts texturing treatment on the surface of a battery cell through a laser technology, and the side face printing section branch line conducts spray printing of insulating paint on the textured side face surface of the battery cell so as to form an insulating protection layer covering the side face of the battery cell. And the end face printing section performs insulating paint jet printing on the end face of the explosion-proof valve and the end face of the pole of the battery cell in a branching manner so as to form an insulating protection layer covering the two end faces.

Description

Technical Field

[0001] The utility model relates to the field of battery processing, in particular to a battery insulation inkjet production line. Background Art

[0002] In order to ensure the safety and stability of the power battery system, avoid short circuits and safety accidents, and extend the service life of the power battery system, it is necessary to insulate the surface of the power battery. At present, the use of surface insulation inkjet printing technology in the battery manufacturing process has become a new coating material construction method, which can form a uniform and thickness-controlled insulating protective film on the battery surface, thereby improving the durability, safety and use effect of the battery.

[0003] This process involves the following steps: taking a battery cell, using a laser cleaning process to roughen the surface of the battery cell to obtain a battery cell with a roughened surface; performing plasma treatment on the battery cell with a roughened surface; using a digital printing device to print insulating material on the roughened surface of the plasma-treated battery cell, forming an insulating protective layer covering the surface of the battery cell according to preset parameters, to form a printed battery cell; and curing the printed battery cell to form a finished insulating battery cell.

[0004] During the laser cleaning process, a large amount of aluminum powder particles will be generated (the surface material of the battery cell shell is generally aluminum). These aluminum powder particles need to be restricted and processed, otherwise they will greatly affect the printing quality.

[0005] Therefore, there is an urgent need for a battery insulation inkjet production line that can effectively isolate aluminum powder particles generated by laser cleaning to avoid affecting the printing effect and overcome the above-mentioned defects. Utility Model Content

[0006] The utility model aims to provide a battery insulation inkjet production line which can effectively isolate aluminum powder particles generated by laser cleaning to avoid affecting the printing effect.

[0007] To achieve the above-mentioned purpose, the utility model provides a battery insulation inkjet production line, which is arranged in multiple sections and at least includes a cleaning section branch line, a side printing section branch line and an end face printing section branch line. The cleaning section branch line, the side printing section branch line and the end face printing section branch line are arranged in sequence along the front-to-back direction. The cleaning section branch line, the side printing section branch line and the end face printing section branch line are each provided with a shell to isolate each other. The cleaning section branch line uses a laser process to roughen the surface of the battery cell, the side printing section branch line sprays insulating paint on the roughened side surface of the battery cell to form an insulating protective layer covering the side surface of the battery cell, and the end face printing section branch line sprays insulating paint on the explosion-proof valve end face and the pole end face of the battery cell to form an insulating protective layer covering the two end faces.

[0008] Preferably, the cleaning section line, the side printing section line and the end surface printing section line respectively adopt magnetic suspension closed-loop conveyor lines, and the magnetic suspension closed-loop conveyor lines have a plurality of carriers for carrying battery cells.

[0009] Preferably, the cleaning section line is sequentially arranged with an explosion-proof valve end face laser cleaning machine, a pole end face laser cleaning machine and a side laser cleaning machine along its conveying direction. The explosion-proof valve end face laser cleaning machine and the pole end face laser cleaning machine can respectively translate along the conveying direction of the cleaning section line, and the side laser cleaning machine has a cleaning profiling tooling for clamping the battery cell and driving the battery cell to rotate.

[0010] Preferably, the cleaning section line is also provided with a cell dust removal cleaning machine for removing dust from the surface of the cell, and the explosion-proof valve end face laser cleaning machine, the pole end face cleaning machine, the side laser cleaning machine and the cell dust removal cleaning machine are arranged in sequence along the conveying direction of the cleaning section line.

[0011] Preferably, the side printing section line is successively arranged with a side printer and a final curing inspection machine along its conveying direction. The side printer has a printing profiling tooling and a pre-curing ultraviolet lamp for clamping the battery cell and driving the battery cell to rotate. The side printer is used to print insulating material on the roughened side of the battery cell, and the final curing inspection machine cures the side of the printed battery cell and performs appearance inspection.

[0012] Preferably, the side printing section line is provided with at least two side printers arranged side by side.

[0013] Preferably, the side printing section line is also provided with a film thickness detector for detecting the side film thickness of the printed battery cell, and the side printer, the final curing detector and the film thickness detector are arranged in sequence along the conveying direction of the side printing section line.

[0014] Preferably, the end face printing section line is provided with an explosion-proof valve end face printer and a pole end face printer which are arranged opposite to and respectively arranged on both sides of the end face printing section line, and the explosion-proof valve end face printer and the pole end face printer can be translated along the conveying direction of the end face printing section line.

[0015] Preferably, the end face printing section line is also provided with a cleaning inkjet printer for plasma cleaning and inkjet coding the side of the inkjet printed battery cell, an end face final curing machine for final curing the end face of the inkjet printed battery cell, and an end face inspection machine for performing end face appearance inspection on the inkjet printed battery cell. The cleaning inkjet printer, explosion-proof valve end face printer, end face final curing machine and end face inspection machine are arranged in sequence along the conveying direction of the end face printing section line.

[0016] Preferably, the cleaning section line is also provided with a loading robot for loading battery cells onto the conveyor line, and the end surface printing section line is also provided with a taking-out robot for taking the battery cells off the conveyor line.

[0017] Compared with the prior art, the battery insulation inkjet production line of the utility model can increase the surface area of ​​the battery cell and improve the adhesion between the insulation coating and the battery cell shell after laser processing the surface of the battery cell through the cleaning segment line, and then accurately spray print the side of the battery cell through the side printing segment line, and accurately spray print the explosion-proof valve end face and pole end face of the battery cell through the end face printing segment line, thereby improving the insulation pressure resistance and structural strength of the battery, and also improving production efficiency and reducing production costs. By accurately printing the insulating coating on the surface of the battery cell, the waste of coating can be effectively avoided, and the thickness, shape and distribution of the insulating coating can be more accurately controlled. The battery insulation inkjet production line is divided into a three-segment design, and the cleaning segment line, the side printing segment line and the end face printing segment line are independently isolated by using a casing, so that each section of the production line is independent and does not affect each other, so that the aluminum powder particles generated in the cleaning segment line cannot flow freely into the side printing segment line and the end face printing segment line, effectively isolating the aluminum powder particles and avoiding affecting the printing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a battery insulation inkjet production line of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the cleaning section line of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the side printing segment line of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the end surface printing segment branch line of the utility model. DETAILED DESCRIPTION

[0022] In order to explain the technical content and structural features of the present invention in detail, further description will be given below in combination with the embodiments and the accompanying drawings.

[0023] like Figure 1 As shown, the utility model provides a battery insulation inkjet production line 1000, which is arranged in multiple sections and at least includes a cleaning section branch line 100, a side printing section branch line 200 and an end surface printing section branch line 300. The cleaning section branch line 100, the side printing section branch line 200 and the end surface printing section branch line 300 are arranged in sequence along the front-to-back direction. The cleaning section branch line 100, the side printing section branch line 200 and the end surface printing section branch line 300 are each provided with a housing to isolate each other.

[0024] In the embodiment provided by the utility model, the cleaning segment branch 100 is covered by the first housing 01, the side printing segment branch 200 is covered by the second housing 02, and the end printing segment branch 300 is covered by the third housing 03. The cleaning segment branch 100, the side printing segment branch 200 and the end printing segment branch 300 are independently isolated by the first housing 01, the second housing 02 and the third housing 03, and the processing environment of each segment does not affect each other. The cleaning segment branch 100 uses a laser process to roughen the surface of the battery cell to obtain a battery cell with a roughened surface, increase the surface area and roughness of the battery cell, and then improve the surface adhesion. First, the surface of the battery cell is pretreated, and the battery cell is roughened by laser microtexturing technology (laser cleaning process). By controlling the shape, spacing, and depth parameters of the microstructure, the surface area and roughness of the battery cell are increased. The use of a laser cleaning process can meet the requirements of insulation withstand voltage, adhesion, and structural strength after aluminum shell spraying. It is worth noting that a large amount of aluminum powder particles (the surface material of the battery cell shell is aluminum) will be generated during the laser cleaning process. If it is not controlled, it will affect the subsequent printing process. The side printing segment branch line 200 prints insulating paint on the roughened surface of the battery cell to form an insulating protective layer covering the side of the battery cell, thereby forming a printed battery cell. The end face printing segment branch line 300 prints insulating paint on the explosion-proof valve end face and the pole end face of the battery cell to form an insulating protective layer covering the two end faces. The insulating paint is evenly printed on the surface of the battery cell and the two end faces to form an insulating protective layer with uniform thickness. The thickness of the insulating protective layer is preferably 120μm, but not limited to this, so as to achieve the insulating protection performance of the insulating layer of the coating process.

[0025] The battery insulation inkjet production line 1000 of the utility model can increase the surface area of ​​the battery cell and improve the adhesion between the insulation coating and the battery cell shell after laser processing the surface of the battery cell by the cleaning section line 100, and then accurately spray print the side of the battery cell by the side printing section line 200, and accurately spray print the end face of the explosion-proof valve and the end face of the pole of the battery cell by the end face printing section line 300, thereby improving the insulation pressure resistance and structural strength of the battery, and also improving production efficiency and reducing production costs. By accurately printing the insulating coating on the surface of the battery cell, the waste of coating can be effectively avoided, and the thickness, shape and distribution of the insulating coating can be more accurately controlled.

[0026] The battery insulation inkjet production line 1000 is divided into a three-section design, and the cleaning section line 100, the side printing section line 200 and the end printing section line 300 are independently isolated by using a housing, so that each section of the production line is independent and does not affect each other. In this way, the aluminum powder particles generated in the cleaning section line 100 cannot flow freely into the side printing section line 200 and the end printing section line 300, effectively isolating the aluminum powder particles, eliminating the pollution of the cleaning section line to the printing section line, improving the printing quality rate, avoiding affecting the printing effect, and also facilitating the control and emission of the odor of the printing section line. Moreover, the cleaning section line 100, the side printing section line 200 and the end printing section line 300 are divided into three modules, each of which is independent of each other, which is conducive to the simplified design of the carrier, and has greater compatibility. Each functional module is relatively independent, and production can be flexibly arranged.

[0027] like Figures 1 to 4 As shown, the cleaning section line 100, the side printing section line 200 and the end printing section line 300 respectively use a magnetic suspension closed-loop conveyor line, which has multiple carriers for carrying battery cells. The magnetic suspension closed-loop conveyor line has a stable and fast conveying speed. The closed-loop design can be continuously conveyed. The magnetic suspension track is used. The structure of the whole machine is simple and reliable, the carrier moves at a fast speed, and the repeated positioning accuracy is high, which maximizes the utilization rate of the nozzle and laser. Figure 1 As shown, the cleaning segment line 100, the side printing segment line 200 and the end surface printing segment line 300 are transported in a counterclockwise direction (direction of arrow A).

[0028] like Figure 1 and Figure 2 As shown, the cleaning section line 100 is sequentially arranged with an explosion-proof valve end face laser cleaning machine 110, a pole end face laser cleaning machine 120 and a side laser cleaning machine 130 along its conveying direction. The explosion-proof valve end face laser cleaning machine 110 and the pole end face laser cleaning machine 120 can be translated along the conveying direction of the cleaning section line 100. The side laser cleaning machine 130 has a cleaning profiling tool (not shown) for clamping the battery cell and driving the battery cell to rotate. The carrier generally carries a plurality of battery cells. By reciprocating translation, the explosion-proof valve end face laser cleaning machine 110 and the pole end face laser cleaning machine 120 can clean the pole end faces and explosion-proof valve end faces of a plurality of battery cells at a time, thereby accelerating the cleaning efficiency. When the side laser cleaning machine 130 cleans the side of the battery cell, the cleaning profiling tool drives the battery cell to rotate, and laser cleans the side of the battery cell uniformly and efficiently. The cleaning profiling tool can position the battery cell by clamping at both ends, and drive the battery cell to rotate by a motor-driven rotation.

[0029] The explosion-proof valve end laser cleaning machine 110, the pole end laser cleaning machine 120 and the side laser cleaning machine 130 use pulsed fiber lasers to provide infrared laser beams, which perform laser etching on the surface of the battery cell along a preset path, and process a number of microstructures on the surface of the battery cell, thereby increasing the surface area and adhesion of the battery cell surface. The microstructures are micro pits, micro grooves and other structures. During the laser etching process, avoid the pole, explosion-proof valve and other locations to avoid damage.

[0030] In addition, the cleaning section line 100 is also provided with a cell dust removal cleaning machine 140 for dust removal and cleaning the surface of the cell. The explosion-proof valve end face laser cleaning machine 110, the pole end face laser cleaning machine 120, the side laser cleaning machine 130 and the cell dust removal cleaning machine 140 are arranged in sequence along the conveying direction of the cleaning section line 100. The cell dust removal cleaning machine 140 uses plasma dust removal and cleaning. The carrier sends the cell into the cell dust removal cleaning machine 140, and the ion wind knife can effectively remove the dust particles remaining on the surface of the cell and neutralize the static electricity on the surface of the cell. The added plasma cleaning and dust removal will produce two changes on the surface of the material after plasma treatment. The first is a physical change: after plasma bombardment, the surface of the material will become rough. Of course, this roughness cannot be seen by the eyes, and is usually only a few dozen nanometers deep. However, after plasma surface treatment, the hydrophilicity of the material surface will increase significantly, which can significantly improve the bonding ability of the material surface. The second is chemical change: the ion beam stimulates the molecular structure of the product surface, breaks the molecular chain, and makes it free, so that the battery cell has stronger adhesion during the printing process; thus, the battery cell after the above treatment has good adhesion ability, which is convenient for the adhesion of insulating materials and improves the service life of the battery cell. Before placing the battery cell into the cleaning section line 100 for conveying and processing, the battery cell code scanning operation can also be set.

[0031] like Figure 1 and Figure 3As shown, the side printing section line 200 of the utility model is arranged with a side printer 210 and a final curing detection machine 220 along its conveying direction. The side printer 210 has a printing profiling tool (not shown in the figure) for clamping the battery cell and driving the battery cell to rotate, and a pre-curing ultraviolet lamp (not shown in the figure). The side printer 210 is used to print the insulating material on the roughened side of the battery cell. After the carrier sends the battery cell into the side printer 210, the battery cell is lifted and positioned by an automatic mechanism, the printing profiling tool clamps the two end faces of the battery cell (the clamping force is adjustable), the printing profiling tool drives the battery cell to rotate, the flying ink suction device is started, and the nozzle prints on the side of the battery cell at the same time, and the pre-curing ultraviolet lamp performs initial curing on the coating on the surface of the battery cell. The battery cell is then lifted, positioned and rotated by the battery cell mechanism, and the final curing inspection machine 220 uses ultraviolet lamps to perform final curing on the sides of the battery cell, and performs appearance inspection on the cured side coating to prevent defective products from flowing into the next process. CCD and other equipment can be used for appearance inspection here, but it is not limited to this equipment.

[0032] In order to keep up with the production rhythm, the side printing section line 200 is provided with at least two side printing machines 210 arranged side by side.

[0033] Furthermore, the side printing section line 200 is also provided with a film thickness detector 230 for detecting the film thickness of the side of the printed battery. The side printer 210, the final curing detector 220 and the film thickness detector 230 are arranged in sequence along the conveying direction of the side printing section line 200. After the carrier delivers the battery into the film thickness detector 230, the film thickness detector 230 detects the film thickness of the side of the battery to obtain a qualified side coating thickness. Generally, quantitative sampling is performed on different axial process requirement points of the battery, and the battery cells that are tested NG are discharged and classified and collected at the warp end.

[0034] like Figure 1 and Figure 4 As shown, the end face printing section line 300 is provided with an explosion-proof valve end face printer 310 and a pole end face printer 320 which are arranged opposite to each other and are arranged on both sides of the end face printing section line 300, and the explosion-proof valve end face printer 310 and the pole end face printer 320 can be translated along the conveying direction of the end face printing section line 300. The carrier carries multiple battery cells, and through reciprocating translation, the explosion-proof valve end face printer 310 and the pole end face printer 320 can print multiple end faces at a time, thereby improving printing efficiency.

[0035] After the carrier delivers the battery cell into the explosion-proof valve end face printer 310 and the pole end face printer 320, the battery cell is positioned by an automatic mechanism, the pole end face and the explosion-proof valve end face are printed by an inkjet system, and the pre-curing lamp is started to pre-curing the printed surface.

[0036] Furthermore, the end face printing section line 300 is also provided with a cleaning inkjet printer 330 for plasma cleaning and coding the side of the printed battery cell. The cleaning inkjet printer 330 performs plasma cleaning on the side of the battery cell in order to improve the adhesion of the side of the battery cell to the ink, so that the ink of the coding can adhere better. The pattern obtained by coding can be a number, a character, a bar code or a two-dimensional code, etc. The operation of scanning code review and film thickness sampling can be set between the cleaning inkjet printer 330 and the pole end face printer 320, but these two operations are not necessary. The end face printing section line 300 also includes an end face final curing machine 340 for final curing of the printed battery cell and an end face inspection machine 350 for appearance inspection of the printed battery cell. The carrier sends the battery cell into the end face final curing machine 340, and the end face of the battery cell pole and the end face of the explosion-proof valve are finally cured by the final curing ultraviolet lamp. The carrier sends the battery cell to the end face inspection machine 350 to perform coating appearance inspection on the pole end face and the explosion-proof valve end face to prevent defective products from flowing out. CCD and other equipment can be used for appearance inspection here, but it is not limited to this equipment.

[0037] To facilitate loading and unloading, the cleaning section line 100 is also provided with a loading robot 150 for loading battery cells onto the conveyor line, and the end surface printing section line 300 is also provided with a taking-out robot 360 for taking the battery cells off the conveyor line.

[0038] In addition, the battery insulation inkjet production line 1000 of the utility model can also be equipped with an offline inspection station and an offline repair station. The offline inspection station is equipped with an insulation withstand voltage inspection station, a battery cell surface roughness inspection station and a handheld film thickness inspection station.

[0039] The offline rework station is equipped with a UV film surface cleaning station, a single cell UV printing station, a single cell specific position coding station, and a single cell specific position coding station, which can effectively clean the cured UV film on the surface of the blue cell, and then perform surface printing and coding on the cell. In addition, the battery insulation inkjet production line 1000 of the utility model is also equipped with a defective product collection station, and the cells that fail the cell code scanning, code scanning review, and film thickness detection are placed in the defective product collection station for classification, collection, and centralized processing.

[0040] It is worth mentioning that the nozzles used by the side printer 210, the explosion-proof valve end face printer 310 and the pole end face printer 320 are nozzles in the industrial digital printing industry, including but not limited to all nozzles in the digital industry such as Starlight, Xaar, and Seiko. The advantage of this type of printing nozzle is that it can print and output patterns and texts, and can also improve the printing accuracy of insulating coatings, reduce waste, and has strong adaptability and flexibility.

[0041] The side printer 210, the explosion-proof valve end printer 310 and the pole end printer 320 each also include an ink supply system, which is a key component in the digital printing device for providing ink to the print head, including ink cartridges (or ink boxes), ink delivery pipelines, ink supply pumps (or negative pressure systems), ink sensors, cleaning devices and control systems. The above-mentioned processed batteries are lithium-ion power batteries in the new energy industry, including square aluminum shell batteries and cylindrical batteries. The side printer 210, the final curing detection machine 220, and the end final curing machine 340 are all equipped with curing lamps, that is, the above-mentioned ultraviolet lamps (or other lamps that can achieve coating curing), which are commonly used in digital printing and are used to cure ink or paint to achieve the purpose of rapid curing and forming of the coating.

[0042] In summary, the battery insulation inkjet production line 1000 of the utility model has the following advantages: the three-stage design effectively isolates the dust from the laser roughening treatment, the spraying section arranges a separate cleaning station to ensure the quality of the spray printing, and the three-stage magnetic suspension ring conveyor line can achieve fast and stable transportation and positioning, fully matching the cycle time of each station, and maximizing the efficiency of improving the utilization rate of the laser and inkjet print head to match the production capacity. In addition, it also has the following advantages:

[0043] 1. Materials: Traditional casing technology uses polymer materials for insulation protection, while printing technology uses specially formulated insulating coatings, which can be precisely controlled as needed and have better adaptability and controllability. In addition, the coating can not only improve the insulation performance of the battery surface, but also enhance the mechanical strength of the battery.

[0044] 2. Process: The printing technology uses non-contact printing equipment, which has a simple process flow and low cost. In addition, the printing technology can realize the continuous production of multiple cells, which has higher production efficiency.

[0045] 3. Adaptability: Traditional coating technology has high requirements on the surface of battery cell materials, while printing technology can adapt to materials with surface defects such as scratches, pits and bulges, and can provide customized pattern design for the battery surface.

[0046] 4. Safety performance: The printing technology uses special insulating coatings to form a uniform and dense protective coating, which can improve the insulation performance and structural strength of the battery and enhance the safety and reliability of the battery.

[0047] The above disclosure is only a preferred example of the present invention, which cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are all within the scope of the present invention.

Claims

1. A battery insulation inkjet production line, characterized in that: The battery cell is divided into multiple sections and at least includes a cleaning section branch, a side printing section branch and an end printing section branch. The cleaning section branch, the side printing section branch and the end printing section branch are arranged in sequence along the front-to-back direction. The cleaning section branch, the side printing section branch and the end printing section branch are each provided with a shell to isolate each other. The cleaning section branch adopts a laser process to roughen the surface of the battery cell. The side printing section branch prints insulating paint on the roughened side surface of the battery cell to form an insulating protective layer covering the side surface of the battery cell. The end printing section branch prints insulating paint on the explosion-proof valve end face and the pole end face of the battery cell to form an insulating protective layer covering the two end faces.

2. The battery insulation inkjet production line according to claim 1, characterized in that: The cleaning section branch line, the side printing section branch line and the end surface printing section branch line respectively adopt magnetic suspension closed-loop conveyor lines, and the magnetic suspension closed-loop conveyor lines have a plurality of carriers for carrying battery cells.

3. The battery insulation inkjet production line according to claim 1, characterized in that: The cleaning section line is sequentially arranged with an explosion-proof valve end face laser cleaning machine, a pole end face laser cleaning machine and a side laser cleaning machine along its conveying direction. The explosion-proof valve end face laser cleaning machine and the pole end face laser cleaning machine can respectively translate along the conveying direction of the cleaning section line, and the side laser cleaning machine has a cleaning profiling tooling for clamping the battery cell and driving the battery cell to rotate.

4. The battery insulation inkjet production line according to claim 3, characterized in that: The cleaning section line is also provided with a cell dust removal cleaning machine for removing dust from the surface of the cell. The explosion-proof valve end face laser cleaning machine, the pole end face cleaning machine, the side laser cleaning machine and the cell dust removal cleaning machine are arranged in sequence along the conveying direction of the cleaning section line.

5. The battery insulation inkjet production line according to claim 1, characterized in that: The side printing section line is arranged with a side printer and a final curing inspection machine along its conveying direction. The side printer has a printing profiling tooling and a pre-curing ultraviolet lamp for clamping the battery cell and driving the battery cell to rotate. The side printer is used to print insulating material on the roughened side of the battery cell, and the final curing inspection machine cures the side of the printed battery cell and performs appearance inspection.

6. The battery insulation inkjet production line according to claim 5, characterized in that: The side printing section line is provided with at least two side printers arranged side by side.

7. The battery insulation inkjet production line according to claim 5, characterized in that: The side printing section line is also provided with a film thickness detector for detecting the side film thickness of the printed battery cell. The side printer, the final curing detector and the film thickness detector are arranged in sequence along the conveying direction of the side printing section line.

8. The battery insulation inkjet production line according to claim 1, characterized in that: The end face printing section line is provided with an explosion-proof valve end face printer and a pole end face printer which are arranged opposite to each other and are arranged on both sides of the end face printing section line. The explosion-proof valve end face printer and the pole end face printer can be translated along the conveying direction of the end face printing section line.

9. The battery insulation inkjet production line according to claim 8, characterized in that: The end face printing section line is also provided with a cleaning inkjet printer for plasma cleaning and inkjet coding the side of the inkjet printed battery cell, an end face final curing machine for final curing the end face of the inkjet printed battery cell, and an end face inspection machine for end face appearance inspection of the inkjet printed battery cell. The cleaning inkjet printer, the explosion-proof valve end face printer, the end face final curing machine and the end face inspection machine are arranged in sequence along the conveying direction of the end face printing section line.

10. The battery insulation inkjet production line according to claim 1, characterized in that: The cleaning section line is also provided with a loading robot for loading battery cells onto a conveyor line, and the end surface printing section line is also provided with a taking-out robot for taking the battery cells off the conveyor line.

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