Battery cell high-density transport device and battery cell conveying apparatus

Abstract

This disclosure provides a high-density battery cell transport device and a battery cell conveying equipment. The high-density battery cell transport device includes a transport body and multiple bare battery cells. The transport body forms a transport channel, and the bare battery cells are spaced apart within the transport channel. Each bare battery cell includes a cell body and a tab, with an arc-shaped anti-puncture portion formed at the end of the tab furthest from the cell body. The transport spacing between adjacent bare battery cells is 1cm-10cm, and the transport speed of the transport channel is 1.5m / min-5.0m / min. This device, due to the arc-shaped anti-puncture portion formed at the end of the tab furthest from the cell body, effectively improves the high-density and high-efficiency transport of multiple bare battery cells, better meeting the needs of automated production with high transport efficiency.

Description

Technical Field

[0001] This disclosure relates to the field of battery cell delivery technology, and in particular to a high-density battery cell delivery device and battery cell delivery equipment. Background Technology

[0002] In the electrolyte injection and assembly processes of battery cells, a transfer device, such as that described in patent CN205602545, is typically used to sequentially transport the manufactured battery cells to the electrolyte injection and assembly stages to complete the operations. While the aforementioned transfer device can achieve good transfer of the battery cells, the tabs of unassembled battery cells are exposed on the cell body. If the transfer device malfunctions, causing the battery cells to clump together and be squeezed, the exposed tabs are prone to puncturing the outer aluminum-plastic film of the battery cell's bottom packaging, thus affecting the quality of the battery cell.

[0003] Therefore, some scholars have attempted to solve the aforementioned technical problems by reducing the conveying speed of the transmission device (reducing the conveying speed to 0.8m / min-1.2m / min) or increasing the transmission spacing of the battery cells (setting the transmission spacing to be greater than 10cm). However, this would affect the efficiency of battery cell transmission and would not adequately meet the requirements of automated production with high transmission efficiency. Utility Model Content

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a high-density battery cell transmission device and battery cell conveying equipment that effectively improves the high-density and high-efficiency conveying of multiple bare battery cells to better meet the needs of automated production with high transmission efficiency.

[0005] The purpose of this disclosure is achieved through the following technical solution: A high-density battery cell transport device includes a transport body and a plurality of bare battery cells. The transport body forms a transport channel, and the bare battery cells are spaced apart within the transport channel. Each of the bare cells includes a cell body and a tab, and an arc-shaped anti-puncture part is formed at the end of the tab away from the cell body; the conveying distance between each adjacent bare cell is 1cm-10cm, and the conveying speed of the conveying channel is 1.5m / min-5.0m / min.

[0006] In one embodiment, the conveying spacing is 5cm-10cm.

[0007] In one embodiment, the conveying speed is 2.0 m / min to 3.0 m / min.

[0008] In one embodiment, the bare cell is a flat bare cell, which is horizontally disposed within the conveying channel.

[0009] In one embodiment, first aluminum-plastic folding blocking portions are formed on both sides of the first end of the bare battery cell, and the two first aluminum-plastic folding blocking portions and the end of the bare battery cell form a blocking cavity, which is used to accommodate the tab.

[0010] In one embodiment, the exposed length of the electrode tab is 1.01 to 1.2 times the length of the first aluminum-plastic folding stop portion; and / or, The first end of the bare battery cell has a second aluminum-plastic folding blocking part.

[0011] In one embodiment, the ratio of the height to the bottom area of ​​the flat bare cell is (3mm-10mm): (5000mm) 2 -20000mm 2 ).

[0012] In one embodiment, the high-density cell transmission device further includes a plastic plate disposed on both sides of the transmission channel.

[0013] In one embodiment, the width of the delivery channel is 1.03 to 1.16 times the width of the bare cell.

[0014] A battery cell delivery device includes the high-density battery cell transmission device described in any of the above embodiments.

[0015] Compared with the prior art, this disclosure has at least the following advantages: Because the end of the tab furthest from the cell body has an arc-shaped anti-puncture part, the added arc-shaped anti-puncture part can effectively reduce the probability of the exposed tab puncturing the outer aluminum-plastic film of the cell's bottom packaging. This effectively shortens the conveying distance between each adjacent bare cell, ensuring that the conveying distance between each adjacent bare cell is 1cm-10cm. This enables high-density conveying of multiple bare cells and also helps to increase the conveying speed of multiple bare cells, ensuring that the conveying speed reaches 1.5m / min-5.0m / min. This achieves more efficient transmission of multiple bare cells and better meets the needs of automated production with high transmission efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of one direction of the high-density battery cell transmission device according to an embodiment of the present invention; Figure 2 for Figure 1 A partial structural schematic diagram of the high-density transmission device for battery cells is shown.

[0018] Reference numerals: 10, High-density battery cell transmission device; 100, Conveying body; 110, Conveying channel; 120, Frame; 121, Conveying area; 130, Conveying assembly; 131, Conveying belt; 200, Bare battery cell; 210, Battery cell body; 220, Electrode tab; 221, Arc-shaped anti-stab part; 230, First aluminum-plastic folding blocking part; 240, Second aluminum-plastic folding blocking part; 250, Blocking cavity; 310, First plastic plate; 311, First connecting sub-plate; 312, Second connecting sub-plate; 3121, Vertical smooth surface; 313, Third connecting sub-plate; 320, Second plastic plate; 330, Preset gap. Detailed Implementation

[0019] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments: Please see Figures 1 to 2One embodiment of the high-density battery cell transmission device 10 includes a transmission body 100 and a plurality of bare battery cells 200. The transmission body 100 forms a transmission channel 110, and each of the bare battery cells 200 is spaced apart in the transmission channel 110. Each bare battery cell 200 includes a battery cell body 210 and a tab 220. An arc-shaped anti-puncture part 221 is formed at the end of the tab 220 away from the battery cell body 210. The transmission spacing between each adjacent bare battery cell 200 is 1cm-10cm, and the transmission speed of the transmission channel 110 is 1.5m / min-5.0m / min.

[0023] It is understandable that, since the end of the tab 220 away from the cell body 210 has an arc-shaped anti-puncture part 221, the added arc-shaped anti-puncture part 221 can effectively reduce the probability of the exposed tab 220 puncturing the outer packaging aluminum-plastic film at the bottom of the cell, thereby effectively shortening the conveying distance between each adjacent bare cell 200, that is, ensuring that the conveying distance between each adjacent bare cell 200 is 1cm-10cm; so as to achieve high-density conveying of multiple bare cells 200, and at the same time, it is also conducive to improving the conveying speed of multiple bare cells 200, that is, ensuring that the conveying speed reaches 1.5m / min-5.0m / min, so as to achieve more efficient conveying of multiple bare cells 200, and better meet the needs of automated production with high conveying efficiency.

[0024] It is also understood that if the conveying distance between adjacent bare cells 200 is less than 1 cm or the conveying speed is higher than 5.0 m / min, multiple bare cells 200 will immediately experience severe congestion and compression due to conveying failure. If the conveying distance between adjacent bare cells 200 is higher than 10 cm or the conveying speed is lower than 1.5 m / min, the requirements of high-efficiency automated production cannot be adequately met. Therefore, in this disclosure, by controlling the conveying distance between adjacent bare cells 200 to be 1 cm-10 cm and the conveying speed to be 1.5 m / min-5.0 m / min, the problem of severe congestion and compression of multiple bare cells 200 is prevented from occurring immediately due to conveying failure, while also achieving high-density and high-speed conveying of multiple bare cells 200 to better meet the requirements of high-efficiency automated production.

[0025] In one embodiment, the conveying spacing is 5cm-10cm, especially when combined with a conveying speed of 2.0m / min-3.0m / min, to better adapt to the needs of high-density, high-efficiency automated production.

[0026] It is understandable that, due to the small bottom area of ​​the flat bare battery cell 200, if an upright conveying method is used, the flat bare battery cell 200 is prone to swaying and falling, causing conveying blockage. Therefore, in one embodiment, the bare battery cell 200 is a flat bare battery cell 200, which is horizontally disposed within the conveying channel 110. This effectively increases the contact area between the flat bare battery cell 200 and the conveying channel 110, thereby effectively reducing the probability of the flat bare battery cell 200 swaying and falling due to upright conveying. This is especially suitable when the ratio of the height to the bottom area of ​​the flat bare battery cell 200 is (3mm-10mm):(5000mm). 2 -20000mm 2 Application of ).

[0027] In one embodiment, the arc-shaped anti-stab portion 221 is an arc-shaped portion of 5°-15°.

[0028] like Figure 2 As shown, in one embodiment, first aluminum-plastic folding blocking portions 230 are formed on both sides of the first end of the bare battery cell 200. The two first aluminum-plastic folding blocking portions 230 and the end of the bare battery cell 200 form a blocking cavity 250. The blocking cavity 250 is used to accommodate the tab 220, so that the two added first aluminum-plastic folding blocking portions 230 have better flexibility and can achieve better blocking and isolation of the metal tab 220, thereby achieving better blocking of adjacent crowded and squeezed bare battery cells 200, and further reducing the probability of the tab 220 puncturing the aluminum-plastic film at the bottom of the battery cell.

[0029] In one embodiment, the exposed length of the tab 220 is 1.01 to 1.2 times the length of the first aluminum-plastic folding blocking part 230, so as to achieve good blocking and isolation of the tab 220 without interfering with the subsequent assembly of the bare cell 200.

[0030] like Figure 2 As shown, in one embodiment, a second aluminum-plastic folding blocking portion 240 is formed at the first end of the bare cell 200, which further reduces the probability that the tab 220 will puncture the aluminum-plastic film at the bottom of the cell.

[0031] In one embodiment, the high-density battery cell transmission device 10 further includes a plastic plate disposed on both sides of the transmission channel 110. The added plastic plate has good elastic deformation and can better reduce wear on the surface of the bare battery cell 200.

[0032] It is understandable that although the two additional first aluminum-plastic folding blocking parts 230 can effectively block and isolate the tabs 220, when the transmission device experiences congestion due to a transmission failure, the two first aluminum-plastic folding blocking parts 230 are prone to bending. If the side walls of the transmission channel 110 are uneven, the two bent first aluminum-plastic folding blocking parts 230 are prone to jamming and blockage. Therefore, in one embodiment, the side of the plastic plate facing the bare battery cell 200 is a vertical smooth surface 3121 to effectively reduce the jamming and blockage caused by congestion due to transmission failure.

[0033] In one embodiment, the width of the conveying channel 110 is 1.03 to 1.16 times the width of the bare battery cell 200. This ensures that the gap between the bare battery cell 200 located in the conveying channel 110 and the sides of the conveying channel 110 is small. This ensures that when the bare battery cell 200 collides with the sides of the conveying channel 110, the bare battery cell 200 will not flip over or tilt significantly. This ensures that multiple bare battery cells 200 can maintain a good vertical transport position, thereby ensuring the consistency of the transport of multiple bare battery cells 200.

[0034] In one embodiment, the conveying body 100 includes a frame 120 and a conveying assembly 130. The frame 120 forms a conveying area 121, and the conveying assembly 130 is disposed in the conveying area 121 and forms a conveying channel 110.

[0035] In one embodiment, the conveying assembly 130 includes a conveyor belt 131, a driving wheel, and a driven wheel. The driving wheel and the driven wheel are respectively disposed within the conveying area 121, and the conveyor belt 131 is sleeved between the driving wheel and the driven wheel. When the driving wheel is connected to the drive end of an external driver, it drives the driving wheel to move, thereby driving the driven wheel to move, and in turn, driving the conveyor belt 131 to move. Since the connection structure between the driving wheel, the driven wheel, and the conveying area 121, the connection structure between the conveyor belt 131 and the driving wheel and the driven wheel, and the connection between the driving wheel and the drive end of the external driver are all prior art, they are not specifically described in this disclosure.

[0036] like Figure 2 As shown, in one embodiment, there are two plastic plates, namely a first plastic plate 310, which is disposed on the first side wall of the conveying area 121, and a second plastic plate 320, which is disposed on the second side wall of the conveying area 121, so as to realize the placement of the first plastic plate 310 on both sides of the conveying area 121.

[0037] like Figure 2As shown, in one embodiment, the first plastic plate 310 includes a first connecting sub-plate 311, a second connecting sub-plate 312, and a third connecting sub-plate 313 connected in sequence. The first connecting sub-plate 311, the second connecting sub-plate 312, and the third connecting sub-plate 313 are connected together to form an installation cavity. The installation cavity is used to accommodate the first sidewall of the conveying area 121 to achieve a more comprehensive covering of the first sidewall of the conveying area 121.

[0038] like Figure 2 As shown, in one embodiment, the side of the second connecting sub-board 312 facing the bare cell 200 is a vertical smooth surface 3121 to reduce the phenomenon of jamming and blockage during the delivery of the bare cell 200.

[0039] In one embodiment, a first clearance portion is provided at the connection between the first connecting sub-board 311 and the second connecting sub-board 312, and a second clearance portion is provided at the connection between the second connecting sub-board 312 and the third connecting sub-board 313, further reducing the phenomenon of jamming and blockage during the delivery of the bare battery cell 200.

[0040] In one embodiment, the first and second clearance portions are respectively formed with arc surfaces of 10°-30° to better reduce the probability of jamming or blockage with the bare battery cell 200.

[0041] In one embodiment, the first connecting sub-plate 311, the second connecting sub-plate 312, and the third connecting sub-plate 313 are an integral structure, which ensures the stability of the connection of the first plastic plate 310 and thus improves the service life of the first plastic plate 310.

[0042] In one embodiment, the third connecting subplate 313 and the conveyor belt 131 form a preset gap 330, and the preset gap 330 is less than the minimum thickness of the first aluminum-plastic folding blocking part 230. In this way, while further reducing the phenomenon of jamming and blockage of the first aluminum-plastic folding blocking part 230, the normal operation of the conveying assembly 130 is also effectively guaranteed.

[0043] Similarly, the second plastic plate 320 has a similar structure to the first plastic plate 310, so as to achieve a more comprehensive covering of the second sidewall of the conveying area 121, while also reducing the phenomenon of jamming and blockage during the conveying of the bare battery cell 200.

[0044] This disclosure also provides a cell conveying device, including the cell high-density transmission device 10 described in any of the above embodiments. By employing the cell high-density transmission device 10 of this disclosure, it is better adapted to the requirements of cell conveying devices with high transmission efficiency.

[0045] In one embodiment, the cell conveying device further includes a detection sensing component and an alarm. The detection sensing component is disposed on one side of the conveying channel 110 and is electrically connected to the alarm. The detection sensing component is used to detect whether the distance between any two adjacent bare cells 200 is within a preset value. If so, the cell conveying device maintains normal operation; otherwise, it sends an alarm signal to the alarm. The alarm activates according to the alarm signal to alert the operator. The operator can adjust the conveying speed or conveying distance of the high-density cell conveying device 10 in a timely manner according to the alarm signal to effectively reduce the crowding and squeezing of the bare cells 200.

[0046] In one embodiment, the connection structure between the alarm and the detection sensing component is prior art, and therefore will not be described in detail in this disclosure.

[0047] Compared with the prior art, this disclosure has at least the following advantages: Because the end of the tab 220 away from the cell body 210 has an arc-shaped anti-puncture part 221, the added arc-shaped anti-puncture part 221 can effectively reduce the probability of the exposed tab 220 puncturing the outer packaging aluminum-plastic film at the bottom of the cell, thereby effectively shortening the conveying distance between each adjacent bare cell 200, that is, ensuring that the conveying distance between each adjacent bare cell 200 is 1cm-10cm; so as to achieve high-density conveying of multiple bare cells 200, and at the same time, it is also conducive to improving the conveying speed of multiple bare cells 200, that is, ensuring that the conveying speed reaches 1.5m / min-5.0m / min, so as to achieve more efficient conveying of multiple bare cells 200, and better meet the needs of automated production with high conveying efficiency.

[0048] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A high-density battery cell transmission device, comprising a transmission body and a plurality of bare battery cells, wherein the transmission body forms a transmission channel, and the bare battery cells are spaced apart within the transmission channel, characterized in that, Each of the bare cells includes a cell body and a tab, and an arc-shaped anti-puncture part is formed at the end of the tab away from the cell body; the conveying distance between each adjacent bare cell is 1cm-10cm, and the conveying speed of the conveying channel is 1.5m / min-5.0m / min.

2. The high-density cell transmission device according to claim 1, characterized in that, The conveying distance is 5cm-10cm.

3. The high-density cell transmission device according to claim 1, characterized in that, The conveying speed is 2.0 m / min - 3.0 m / min.

4. The high-density cell transmission device according to claim 1, characterized in that, The bare battery cell is a flat bare battery cell, which is horizontally arranged in the conveying channel.

5. The high-density cell transmission device according to claim 4, characterized in that, First aluminum-plastic folding blocking portions are formed on both sides of the first end of the bare battery cell. The two first aluminum-plastic folding blocking portions and the end of the bare battery cell form a blocking cavity, which is used to accommodate the tab.

6. The high-density cell transmission device according to claim 5, characterized in that, The exposed length of the electrode tab is 1.01 to 1.2 times the length of the first aluminum-plastic folding blocking part; and / or, The first end of the bare battery cell has a second aluminum-plastic folding blocking part.

7. The high-density cell transmission device according to claim 1, characterized in that, The high-density cell transmission device also includes a plastic plate, which is disposed on both sides of the transmission channel.

8. The high-density cell transmission device according to claim 1, characterized in that, The width of the delivery channel is 1.03 to 1.16 times the width of the bare battery cell.

9. A battery cell conveying device, characterized in that, The high-density cell transmission device includes any one of claims 1-8.

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