Battery piece production device

Abstract

The embodiment of the utility model provides a battery piece manufacturing device, and relates to the technical field of battery manufacturing. The battery piece making device comprises an unwinding assembly, a machining roller set, a die cutting assembly and a winding assembly. The processing roller group is used for carrying out thermal compounding or transfer printing on a roll material unwound by the unwinding assembly to form a pole piece, the processing roller group is located at the downstream of the unwinding assembly, the die cutting assembly is located at the downstream of the processing roller group and used for cutting a pole lug and / or trimming, and the winding assembly is located at the downstream of the die cutting assembly and used for winding the pole piece. According to the battery piece production device in the embodiment, thermal compounding, transfer printing and die cutting are integrated, so that the production continuity is improved, and the production efficiency of pole pieces can be improved.

Description

Technical Field

[0001] The utility model, in particular, relates to a battery manufacturing device. Background Art

[0002] The stacking process is one of the key steps in the manufacture of ion batteries. Compared with the winding process, the stacking process is more suitable for battery designs that require higher energy density, more uniform electrode structure or larger size.

[0003] The inventors have found through research that some existing battery pole piece manufacturing devices do not have the functions of compounding, transferring and die-cutting at the same time, and their efficiency is low. Utility Model Content

[0004] The utility model aims to provide a battery manufacturing device, which can improve the manufacturing efficiency.

[0005] The embodiment of the utility model is achieved as follows:

[0006] In a first aspect, the utility model provides a battery film making device, including an unwinding assembly, a processing roller group, a die-cutting assembly and a winding assembly;

[0007] The processing roller group is used to thermally laminate or transfer the coiled material released by the unwinding assembly to form a pole piece. The processing roller group is located downstream of the unwinding assembly. The die-cutting assembly is located downstream of the processing roller group. The die-cutting assembly is used to cut pole ears and / or trim edges. The winding assembly is located downstream of the die-cutting assembly and is used to wind up the pole piece.

[0008] In an optional embodiment, the battery sheet making device further comprises a marking component, which is located upstream of the die-cutting component and downstream of the processing roller group, and is used to make marks on two opposite sides of the pole piece.

[0009] In an optional embodiment, the battery film making device further includes a glue coating component, which is located downstream of the marking component and upstream of the die-cutting component, and the glue coating component is used to apply glue on the marking line of the electrode sheet.

[0010] In an optional embodiment, the battery manufacturing device further includes a drying component, and the drying component is used to dry the glue on the electrode.

[0011] In an optional embodiment, the unwinding assembly includes a first unwinding, a second unwinding, and a third unwinding;

[0012] There is a correction member and / or a tension member between the first unwinding and the processing roller group; and / or there is a correction member and / or a tension member between the second unwinding and the processing roller group; and / or there is a correction member and / or a tension member between the third unwinding and the processing roller group.

[0013] In an optional embodiment, the battery making device further includes a winding roller, which is located downstream of the processing roller group. When the processing roller group transfers the coiled material released by the unwinding assembly, the winding roller winds up the film after the pole piece is transferred.

[0014] In an optional embodiment, the battery production device further includes a defect detection component, which is located downstream of the die-cutting component and is used to detect surface defects of the pole piece.

[0015] In an optional embodiment, the battery manufacturing device further includes a marking device, which is located downstream of the defect detection component and is used to mark defective portions of the electrode sheet.

[0016] In an optional embodiment, the battery sheet making device further includes a dust removal component, which is located downstream of the die-cutting assembly and is used to remove surface dust on the pole piece.

[0017] In an optional embodiment, the battery sheet making apparatus further comprises a plurality of support rollers, wherein the plurality of support rollers are located downstream of the processing roller group and upstream of the winding assembly.

[0018] The beneficial effects of the embodiments of the utility model are as follows: the embodiments of the utility model provide a battery manufacturing device, which includes an unwinding assembly, a processing roller group, a die-cutting assembly and a winding assembly. The processing roller group is used to thermally compound or transfer the coiled material released by the unwinding assembly to form a pole piece, the processing roller group is located downstream of the unwinding assembly, the die-cutting assembly is located downstream of the processing roller group, the die-cutting assembly is used to cut the pole ears and / or trim, and the winding assembly is located downstream of the die-cutting assembly and is used to wind up the pole piece. The battery manufacturing device in this embodiment integrates thermal compounding, transfer, and die-cutting, which improves the continuity of production and can thus speed up the production efficiency of the pole piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 One of the structural schematic diagrams of the battery manufacturing device provided in the embodiment of the utility model;

[0021] Figure 2 The second structural schematic diagram of the battery manufacturing device provided in the embodiment of the utility model.

[0022] Icons: 1-battery making device; 100-unwinding assembly; 110-first unwinding; 120-second unwinding; 130-third unwinding; 140-winding roller; 150-processing roller group; 160-support roller; 200-marking assembly; 300-gluing part; 400-drying assembly; 500-dust removal part; 600-defect detection part; 700-die-cutting assembly; 800-marking device; 900-winding assembly; 2-pole piece. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0027] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The specific structure of a battery manufacturing device provided by an embodiment of the utility model and the corresponding technical effects it brings are described in detail below in conjunction with the patent drawings.

[0030] Please refer to Figure 1-Figure 2 A battery manufacturing device 1 provided in an embodiment of the utility model includes an unwinding assembly 100, a processing roller group 150, a die-cutting assembly 700 and a winding assembly 900.

[0031] The processing roller group 150 is used to thermally laminate or transfer the coiled material released by the unwinding component 100 to form the pole piece 2. The processing roller group 150 is located downstream of the unwinding component 100. The die-cutting component 700 is located downstream of the processing roller group 150. The die-cutting component 700 is used to cut the pole ears and / or trim the edges. The winding component 900 is located downstream of the die-cutting component 700 and is used to wind up the pole piece 2.

[0032] That is to say, the battery sheet making device 1 in this embodiment integrates thermal lamination, transfer printing and die cutting, thereby improving the continuity of production and further accelerating the production efficiency of the electrode sheet 2.

[0033] It should be noted that the unwinding assembly 100 includes a first unwinding assembly 110 , a second unwinding assembly 120 and a third unwinding assembly 130 , and the first unwinding assembly 110 , the second unwinding assembly 120 and the third unwinding assembly 130 are sequentially arranged at intervals along the thickness direction of the pole piece 2 .

[0034] The materials wound on the first unwinding 110 and the third unwinding 130 may be self-supporting films, and the material wound on the second unwinding 120 may be foil.

[0035] Of course, the material wound on the first unwinding 110 and the third unwinding 130 may be a solid electrolyte, and the material wound on the second unwinding 120 may be the electrode sheet 2 .

[0036] The processing roller group 150 includes a first processing roller and a second processing roller, and the first processing roller and the second processing roller are used to perform heat pressing or transfer printing on the materials unwound by the first unwound 110 , the second unwound 120 , and the third unwound 130 .

[0037] During the transfer process, the adhesive film on the electrode 2 after transfer by the first processing roller and the second processing roller needs to be rolled up. Therefore, in some optional embodiments, the battery making device 1 also includes a winding roller 140, which is located downstream of the processing roller group 150, and the winding roller 140 rolls up the adhesive film after the electrode 2 is transferred.

[0038] In detail, there are two winding rollers 140 , which are respectively arranged on the upper and lower sides of the electrode sheet 2 after transfer. The two winding rollers 140 respectively wind up the adhesive film on the two surfaces of the electrode sheet 2 , and the adhesive film is generally a Mylar film.

[0039] In detail, the die-cutting device has two lasers, one for cutting the foil into tabs and the other for trimming the foil.

[0040] Optionally, in order to ensure that the coil unwound by the first unwinding 110 can smoothly enter the processing roller group 150, a correction member and a tension member are provided between the first unwinding 110 and the processing roller group 150. Specifically, the correction member is a correction roller, and the tension member is a tension roller.

[0041] Optionally, in order to ensure that the coil unwound by the second unwinding 120 can smoothly enter the processing roller group 150, a correction member and a tension member are provided between the second unwinding 120 and the processing roller group 150. Specifically, the correction member is a correction roller, and the tension member is a tension roller.

[0042] Optionally, in order to ensure that the coil unwound by the third unwinding 130 can smoothly enter the processing roller group 150, a correction member and a tension member are provided between the third unwinding 130 and the processing roller group 150. Specifically, the correction member is a correction roller, and the tension member is a tension roller.

[0043] Optionally, in this embodiment, in order to further improve the continuity of production, in this embodiment, the battery making device 1 also includes a marking component 200, which is located upstream of the die-cutting component 700 and downstream of the processing roller group 150, and the marking component 200 is used to make marks on two opposite sides of the pole piece 2.

[0044] In detail, the marking assembly 200 includes two laser marking components, and the two laser marking components mark two opposite sides of the pole piece 2. In other words, the two laser marking components mark the front side and the back side of the pole piece 2 respectively.

[0045] Optionally, in this embodiment, in order to further improve the continuity of production, the battery manufacturing device 1 also includes a glue coating component, which is located downstream of the marking component 200 and upstream of the die-cutting component 700. The glue coating component is used to apply glue on the marking line of the pole piece 2. It can be understood that the laser marking machine in the marking component 200 can form a marking line on both sides of the pole piece 2, and then, the glue coating component can apply glue on the marking line. In detail, the glue coating component is used to apply insulating UV glue on the marking line of the pole piece 2.

[0046] In detail, the glue coating assembly includes two glue coating members 300 , and the two glue coating members 300 are respectively used to coat glue on the trace lines on the two opposite sides of the pole piece 2 .

[0047] In order to ensure that the insulating UV glue coated on the glue coating member 300 can solidify in time, the battery manufacturing device 1 also includes a drying component 400, which is used to dry the glue on the electrode 2.

[0048] In this embodiment, there are two drying components 400, one of the two drying components 400 is arranged between the two glue coating parts 300, and the other drying component 400 is arranged on the side of the two glue coating parts 300 close to the die-cutting component 700. The two drying components 400 can be used to dry the insulating glue coated on the pole piece 2 in time.

[0049] Optionally, in this embodiment, in order to further improve the continuity of production, the battery production device 1 also includes a defect detection component 600, which is located downstream of the die-cutting component 700 and is used to detect surface defects of the pole piece 2.

[0050] The number of defect detection components can be two, and the two defect detection components 600 are respectively arranged on both sides of the pole piece 2 to respectively detect surface defects on both sides of the pole piece 2.

[0051] Optionally, in order to facilitate defect identification, the battery manufacturing device 1 further includes a marking device 800 , which is located downstream of the defect detection component 600 , and is used to mark defective parts of the electrode sheet 2 .

[0052] The battery pole piece 2 device further includes a dust removal member 500, which is located downstream of the die-cutting assembly 700. Specifically, in this embodiment, the dust removal member 500 is located between the defect detection member 600 and the marking device 800. The dust removal member 500 may be an air knife or a brush.

[0053] Optionally, the battery sheet making device 1 further includes a plurality of support rollers 160, which are located downstream of the processing roller group 150 and upstream of the die-cutting assembly 700. It is easy to understand that the support rollers 160 are used between the processing roller group 150 and the winding assembly 900 to correct, turn, or tension the pole piece 2 so that the pole piece 2 can run smoothly.

[0054] In summary, a battery film making device 1 provided in an embodiment of the utility model includes an unwinding component 100, a processing roller group 150, a marking component 200, a gluing component, a drying component 400, a die-cutting component 700, a defect detection component 600, a dust removal component 500, a marking device 800 and a winding component 900. The processing roller group 150 is used to thermally compound or transfer the coiled material released by the unwinding component 100 to form a pole piece 2, the processing roller group 150 is located downstream of the unwinding component 100, the die-cutting component 700 is located downstream of the processing roller group 150, the die-cutting component 700 is used to cut pole ears and / or trim, the winding component 900 is located downstream of the die-cutting component 700, and is used to wind up the pole piece 2, the marking component 200 is located upstream of the die-cutting component 700 and downstream of the processing roller group 150, and the marking component 200 is used to The glue coating component is located downstream of the marking component 200 and upstream of the die-cutting component 700. The glue coating component is used to apply glue on the marking line of the pole piece 2. The drying component 400 is used to dry the glue on the pole piece 2. The defect detection component 600 is located downstream of the die-cutting component 700. The defect detection component 600 is used to detect surface defects of the pole piece 2. The marking device 800 is located downstream of the defect detection component 600. The marking device 800 is used to meet the standards for the defective parts of the pole piece 2. The battery making device 1 integrates thermal compounding, transfer, marking, defect detection, and die-cutting, which improves the continuity of production and can thus speed up the production efficiency of the pole piece 2.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A battery manufacturing device, characterized in that: It includes an unwinding assembly, a processing roller group, a die-cutting assembly and a winding assembly; The processing roller group is used to thermally compound or transfer the coiled material released by the unwinding assembly to form a pole piece. The processing roller group is located downstream of the unwinding assembly. The die-cutting assembly is located downstream of the processing roller group. The die-cutting assembly is used to cut pole ears and / or trim edges. The winding assembly is located downstream of the die-cutting assembly and is used to wind up the pole piece.

2. The battery manufacturing device according to claim 1, characterized in that: The battery sheet making device further comprises a marking component, which is located upstream of the die-cutting component and downstream of the processing roller group, and is used for making marks on two opposite sides of the pole piece.

3. The battery manufacturing device according to claim 2, characterized in that: The battery sheet making device further comprises a glue coating component, which is located downstream of the marking component and upstream of the die-cutting component, and is used for coating glue on the marking line of the electrode sheet.

4. The battery manufacturing device according to claim 3, characterized in that: The battery manufacturing device also includes a drying component, which is used to dry the glue on the electrode.

5. The battery manufacturing device according to claim 1, characterized in that: The unwinding assembly includes a first unwinding assembly, a second unwinding assembly and a third unwinding assembly; There is a correcting piece and / or a tension piece between the first unwinding and the processing roller group; and / or there is a correcting piece and / or a tension piece between the second unwinding and the processing roller group; and / or there is a correcting piece and / or a tension piece between the third unwinding and the processing roller group.

6. The battery manufacturing device according to claim 1, characterized in that: The battery film making device also includes a winding roller, which is located downstream of the processing roller group. When the processing roller group transfers the coiled material released by the unwinding assembly, the winding roller rolls up the film after the pole piece is transferred.

7. The battery manufacturing device according to claim 1, characterized in that: The battery sheet making device further comprises a defect detection component, which is located downstream of the die-cutting assembly and is used to detect surface defects of the pole piece.

8. The battery manufacturing device according to claim 7, characterized in that: The battery manufacturing device also includes a marking device, which is located downstream of the defect detection component and is used to mark defective parts of the electrode.

9. The battery manufacturing device according to claim 1, characterized in that: The battery sheet making device also includes a dust removal component, which is located downstream of the die-cutting component and is used to remove dust on the surface of the pole piece.

10. The battery manufacturing device according to claim 1, characterized in that: The battery sheet making device further comprises a plurality of supporting rollers, wherein the plurality of supporting rollers are located downstream of the processing roller group and upstream of the winding assembly.

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