Pole piece and pole lug compounding method and equipment

Abstract

The invention relates to the technical field of battery production, and particularly discloses a pole piece and pole lug compounding method and equipment. The pole piece and pole lug compounding method comprises the following steps: carrying out first dust removal treatment on a cut pole piece; carrying out second dust removal treatment on the cut tabs; carrying out gluing operation on the tab subjected to the second dust removal treatment; and carrying out hot-pressing compounding operation on the tab subjected to the gluing operation and the pole piece subjected to the first dust removal treatment to obtain a first combined piece. According to the scheme, before the pole piece and the pole lug are welded, the pole piece and the pole lug are subjected to hot-pressing composite operation after being subjected to dust removal respectively, so that the pole piece and the pole lug are more tightly attached on a micro-level, the connection stability of the pole piece and the pole lug is improved, and relative displacement of the pole piece and the pole lug before and in the welding process is avoided. Therefore, according to the scheme provided by the invention, the stability degree of connection between the pole piece and the pole lug can be improved, so that the welding effect of the pole piece and the pole lug is improved, and the risk of pseudo soldering in the welding process is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of battery production, and in particular to a method and equipment for assembling a pole piece and a pole ear. Background Art

[0002] During the battery production process, the pole piece and the pole ear need to be combined. Among them, the pole piece plays the role of storing and transmitting electric energy in the battery; the pole ear is the conductor that leads from the pole piece in the battery and is used to connect the pole piece inside the battery to the external circuit. During the operation of the battery, whether it is charging or discharging, the current needs to be conducted between the pole piece and the pole ear, so the stability of the connection between the pole ear and the pole piece is related to the performance and service life of the battery.

[0003] The existing method of combining the pole piece and the pole ear is generally to place the pole piece and the pole ear on a positioning fixture and fix them, and then weld the joint of the pole piece and the pole ear with a through-tube welding device. Due to the material properties and slight surface unevenness between the pole piece and the pole ear, there is a risk of uneven heat transfer during the welding process, which leads to poor connection between the pole piece and the pole ear, and reduces the mechanical properties and electrical conductivity between the two. Summary of the invention

[0004] In view of this, the purpose of the present application is to provide a pole piece and pole ear composite method and equipment to solve the problem of poor connection effect between the pole piece and the pole ear.

[0005] In order to achieve the above technical objectives, the first aspect of the present application provides a pole piece and pole ear composite method, comprising:

[0006] Discharging the first material into the composite component;

[0007] Applying glue to the second material and then placing the second material onto the composite component so that the second material is located in the vertical direction of the first material;

[0008] The first material and the second material are subjected to hot pressing and composite operation by the composite component to obtain a first combined part.

[0009] Furthermore, the method of coating the second material with glue and discharging the second material into the composite component further includes:

[0010] The surface of the second material is subjected to cleaning pretreatment and / or surface roughening pretreatment.

[0011] Furthermore, after the hot pressing and laminating operation is performed, the method further comprises:

[0012] The first combining member is subjected to point detection, wherein the point detection is used to detect the resistance values ​​of a plurality of preset connection points between the first material and the second material.

[0013] Furthermore, after the hot pressing and laminating operation is performed, the method further comprises:

[0014] A gluing operation is performed on one or more end surfaces of the first combining member.

[0015] Furthermore, the gluing operation includes:

[0016] Clamp one end of the tape by means of a glue pulling piece, and pull the tape out to a preset length from the glue outlet point;

[0017] Clamping the adhesive tape at the adhesive outlet point after being pulled out to a preset length by a clamping member;

[0018] Adsorbing the pulled out adhesive tape by using an adhesive suction head;

[0019] Cutting the adhesive tape at the adhesive outlet point by using an adhesive tape cutter;

[0020] The cut adhesive tape is moved to the end surface of the first combining member by the adhesive suction head, so that the adhesive tape covers the connection area between the first material and the second material.

[0021] Furthermore, after the gluing operation is performed, the method further includes:

[0022] The first bonding member is subjected to a glue lamination, hot pressing and curing operation.

[0023] A second aspect of the present application provides a pole piece and pole ear composite device, comprising: a first material discharge component, a second material discharge component, a pretreatment component and a composite component;

[0024] The first material discharge component is used for discharging the first material, and for discharging the first material into the composite component;

[0025] The second material discharge assembly is used for discharging the second material, and for discharging the second material to the composite assembly so that the second material is located in the vertical direction of the first material on the composite assembly;

[0026] The pre-treatment component is arranged between the second material discharge component and the composite component;

[0027] The second material passes through the pretreatment component;

[0028] The pretreatment component is used to perform a gluing operation on the second material;

[0029] The composite component is used to perform a hot pressing composite operation on the first material and the second material to obtain a first combined part.

[0030] Further, the pretreatment component includes: a surface cleaning component and / or a surface carving component 7;

[0031] The surface cleaning component is used to perform dust removal and / or deburring treatment on the surface of the second material;

[0032] The surface characterization component is used to perform a roughening treatment on the surface of the second material to increase the roughness of a part or all of the surface of the second material.

[0033] Further, it also includes: a resistance detection component;

[0034] The resistance detection component is arranged downstream of the composite component, and is used to perform resistance detection on a plurality of connection points on the first connecting member.

[0035] Furthermore, it also includes: a glue sticking component;

[0036] The adhesive laminating assembly comprises: an adhesive laminating table, an adhesive pulling member, an adhesive suction head, an adhesive tape cutter and an adhesive tape unwinding roller;

[0037] The glue sticking platform is used for allowing the first combining member to pass through and supporting the first combining member;

[0038] The adhesive tape unwinding roller is arranged on the adhesive laminating platform and is used for unwinding the adhesive tape;

[0039] The adhesive pulling member can be movably arranged on the adhesive sticking platform and is used to pull out the adhesive tape;

[0040] The tape cutter is used to cut the tape;

[0041] The adhesive suction head can be movably arranged on the adhesive sticking platform, and is used for sucking the cut adhesive tape and moving the adhesive tape to be stuck on the end surface of the first combining member.

[0042] Further, it also includes: a hot pressing and curing component;

[0043] The hot-pressing and curing component is arranged downstream of the gluing component, and is used for performing a gluing and hot-pressing curing operation on the first bonding member after gluing.

[0044] It can be seen from the above technical scheme that the present application provides a method and equipment for assembling a pole piece and a pole ear; wherein the method for assembling a pole piece and a pole ear comprises: performing a first dust removal treatment on the cut pole piece; performing a second dust removal treatment on the cut pole ear; performing a gluing operation on the pole ear after the second dust removal treatment; and performing a hot pressing composite operation on the pole ear after the gluing operation and the pole piece after the first dust removal treatment to obtain a first combination.

[0045] Before welding the pole piece and the pole ear, the present solution performs hot pressing and compounding operations after dust removal on the pole piece and the pole ear respectively, so that the pole piece and the pole ear are more closely fitted at the microscopic level, thereby improving the stability of the connection between the two and avoiding relative displacement between the two before and during welding. Therefore, the solution provided by the present application can improve the stability of the connection between the pole piece and the pole ear, thereby improving the effect of welding the two and reducing the risk of cold welding during welding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0047] Figure 1 A flow chart of a pole piece and pole ear composite method provided in an embodiment of the present application;

[0048] Figure 2 A flow chart of a pole piece and pole ear composite method provided in another embodiment of the present application;

[0049] Figure 3 An overall layout diagram of a pole piece and pole tab composite device provided in another embodiment of the present application;

[0050] Figure 4 A schematic diagram of a first material discharge component of a pole piece and pole tab composite device provided in another embodiment of the present application;

[0051] Figure 5 A schematic diagram of a second material discharge assembly of a pole piece and tab composite device provided in another embodiment of the present application;

[0052] Figure 6 A schematic diagram of a resistance detection component of a pole piece and pole tab composite device provided in another embodiment of the present application;

[0053] Figure 7 A schematic diagram of a glue-attaching assembly of a pole piece and pole tab composite device provided in another embodiment of the present application;

[0054] In the figure:

[0055] 10. First material discharge assembly; 11. First material cutting table; 12. First material cutter; 13. Deflection correction table; 14. Dust collector; 15. Cutter cylinder; 16. Deflection correction sensor; 17. Deflection correction motor; 18. Waste box;

[0056] 20. Second material unloading assembly; 21. Second material cutting table; 22. Surface cleaning assembly; 23. Pretreatment assembly; 24. Guide roller; 25. Tableting mechanism; 26. Preliminary detection mechanism; 27. Surface engraving assembly;

[0057] 30. Composite components;

[0058] 40. resistance detection assembly; 41. detection table; 42. pressing plate; 43. probe; 44. pressing plate motor;

[0059] 50. Glue sticking assembly; 51. Glue pulling part; 52. Clamping part; 53. Tape cutter; 54. Tape feeding roller; 55. Glue sticking table; 56. Glue suction head;

[0060] 60. Hot pressing and curing components;

[0061] 70. Detection components;

[0062] 80. Winding assembly; 81. Protective film roll. DETAILED DESCRIPTION

[0063] The technical solutions of the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the specification of the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection requested by the present application.

[0064] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0065] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a replaceable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0066] See also Figure 1 In a first aspect of the embodiments of the present application, a pole piece and pole ear composite method is provided, comprising:

[0067] S1, discharging the first material into the composite component;

[0068] S2, coating the second material with glue and then placing it into the composite component, so that the second material is located in the vertical direction of the first material;

[0069] S3. Performing a hot pressing composite operation on the first material and the second material through the composite component to obtain a first combined part.

[0070] In this embodiment, the first material may be a pole piece, and the second material may be a pole tab; that is, in step S2, the glue coating operation acts on the pole tab. In other embodiments, the first material may also be a pole tab, and the second material may be a pole piece, so that the glue coating operation acts on the pole piece.

[0071] For the convenience of explanation, in the following embodiments, the first material is a pole piece and the second material is a pole ear.

[0072] In step S1, the first material, that is, the pole piece, can be unwound by the pole piece unwinding roller in the first material unwinding assembly, and the pole piece unwinding roller is driven by the pole piece unwinding motor, and the unwound pole piece material strip passes through the correction platform for correction. Among them, the pole piece unwinding motor can drive the pole piece unwinding roller to rotate forward or reverse, taking into account the front unwinding and the back unwinding of the pole piece material strip. The correction platform is provided with a tension sensor and a correction sensor, which can monitor the running position and tension of the pole piece material strip in real time, and correct the pole piece material strip in real time to ensure that the running position and tension of the pole piece material strip meet the requirements.

[0073] In step S1, the cutting of the electrode strip can be performed by the first material discharge component. The first material discharge component can be provided with a deflection correction table for the electrode strip to pass through and a movable first material cutter. The deflection correction table can correct the position of the electrode strip to ensure that the first material cutter can effectively and accurately cut the electrode strip to obtain the cut electrode. It should be noted that in order to facilitate the continuity of production, in this embodiment, the cut electrode can also be in the shape of a strip to facilitate its continuous transportation. Therefore, in one embodiment, after the first material is discharged from the electrode discharge roller, it can directly pass through multiple transfer rollers and reach the composite table.

[0074] In step S2, the tab material strip can be unwound by the tab unwinding roller in the second material unwinding assembly, and the tab unwinding roller is driven by the tab unwinding motor. The unwound tab is cut by the second material cutting station to obtain the cut tab. The cut tab can be transported by the conveying clamp to the working station of the next process, such as the compounding station.

[0075] In this embodiment, the dust removal process can be carried out through a suction pipe or other suction parts, and the dust generated by the cutting process can be sucked away by the suction parts. It can also be carried out by wiping with a brush roller combined with suction by the suction parts.

[0076] In step S2, the glue coating operation on the second material can be performed by a pre-treatment component. The pre-treatment component can allow the second material, i.e., the tab, to pass through, and is provided with a glue coating head that can move vertically and horizontally; the glue coating head can be moved to abut against the tab and then the glue is coated on the tab. The glue coated by the glue coating head can be a conductive hot melt adhesive.

[0077] In step S3, the hot pressing composite operation is performed by the composite assembly. The composite assembly is provided with a composite clamp and a composite table for the electrode piece to pass through and be placed. The composite clamp can move the electrode ear after the glue coating operation and stick it to the electrode piece. After that, the liftable hot pressing seat on the composite table descends, and the electrode piece and the electrode ear are hot pressed to complete the hot pressing composite operation and form the first combined piece. Corresponding to the above-mentioned strip-shaped electrode piece after cutting, the first combined piece can also be strip-shaped.

[0078] In one embodiment, between the above steps S2 and S3, the method further includes:

[0079] S21, performing cleaning pretreatment and / or surface roughening pretreatment on the surface of the second material.

[0080] Specifically, the operation of cleaning and / or roughening the surface of the tab can be performed by a pretreatment component. The pretreatment component includes a surface cleaning component and a surface carving component; the surface cleaning component can grind, stamp, wipe, etc. the surface of the second material to remove dust and burrs adhered to the second material after cutting, thereby achieving cleaning pretreatment of the second material. The surface carving component is provided with etching tools such as ultrasonic welding heads, which can etch lines on the second material to increase the surface friction of the second material's glue coating area, thereby enabling the first material and the second material to fit more firmly in the subsequent composite process.

[0081] In one embodiment, the above step S3 may include:

[0082] S31, moving the pole ear after the glue coating operation through the composite clamp and pasting it to the pole piece on the composite table;

[0083] S32, controlling the hot pressing seat on the composite platform to descend to complete the hot pressing composite operation of the electrode piece and the electrode ear.

[0084] As an implementation manner, between step S41 and step S42, the following is further included:

[0085] S411, performing a first CCD inspection on the electrode piece and the electrode tab after pasting to detect whether the positional relationship between the electrode piece and the electrode tab meets the pasting position requirement, and if not, performing a material discharge operation.

[0086] In this embodiment, the material discharge operation can be to remove the non-compliant materials by staff or machinery after shutdown, or to transfer the non-compliant materials to a waste box by a robot, or to discharge the non-compliant materials in a subsequent process, etc.

[0087] The first CCD detection can detect the pasting position of the tab on the pole piece before the hot pressing composite operation, thereby ensuring the hot pressing effect and the accuracy of the tab-pole piece fitting.

[0088] In one embodiment, after the first combination member is supported, it can be transported to a marking assembly for marking. The marking assembly marks the first combination member through a marking roller in cooperation with a marking mechanism.

[0089] In one embodiment, after being manufactured, the first combination piece can be directly transported to a welding station for welding of the pole piece and the pole ear, or it can be transported to a winding station and wound by a winding assembly at the winding station.

[0090] As an embodiment, the winding assembly may include a winding roller, a protective film roll and a tension swing rod. The first combination member passes through the tension swing rod, and the tension of the first combination member is adjusted by the tension swing rod. The protective film roll is used to release the protective film and make the protective film attached to the first combination member. The winding roller is used to wind up the first combination member and the protective film after being combined.

[0091] In one embodiment, see Figure 2 , after forming the first combination member, further comprising:

[0092] S5. Perform a second CCD detection on the first combination member.

[0093] The second CCD detection is used to take pictures and position the first combination to detect the alignment relationship between the pole piece and the pole ear after hot pressing and compounding, so as to further ensure the hot pressing effect and the accuracy of the fitting of the pole ear and the pole piece.

[0094] In one embodiment, after the hot pressing and laminating operation is performed, the method further comprises:

[0095] S6. Performing point detection on the first connecting member, the point detection is used to detect the resistance values ​​of multiple preset connection points between the first material and the second material.

[0096] Point detection can further accurately detect the alignment relationship between the pole piece and the pole lug, as well as the connection effect between the pole piece and the pole lug. Specifically, point detection can be performed by a resistance detection component. The multiple probes in the resistance detection component respectively abut against multiple preset connection points on the first binding member, and measure the resistance values ​​of the preset connection points. The contact resistance between the pole piece and the pole lug can be calculated by the measured resistance value, so as to judge the contact condition between the pole piece and the pole lug at the preset connection point. In actual applications, if the measured resistance value remains stable and low, it means that the contact between the pole piece and the pole lug is good; if the resistance value fluctuates greatly or is high, it means that there is poor contact between the pole piece and the pole lug.

[0097] Therefore, similarly, when the resistance value measured by point detection does not meet the preset resistance value requirement, the resistance detection component can send a resistance alarm signal to remind the staff to check.

[0098] In one embodiment, after the hot pressing and laminating operation is performed, the method further comprises:

[0099] S7, performing a gluing operation on one or more end surfaces of the first combining member.

[0100] The gluing operation can be performed by a gluing assembly. The gluing operation can assist in fixing the pole piece and the pole ear, and can also protect the connection area between the pole piece and the pole ear.

[0101] In an embodiment provided in the present application, after the first coupling member is supported, both end surfaces need to be glued to improve the connection firmness between the pole piece and the pole ear on the first coupling member.

[0102] In a more specific embodiment, the gluing operation includes:

[0103] S71, clamping one end of the adhesive tape by the adhesive pulling member, and pulling the adhesive tape out of the adhesive outlet point to a preset length;

[0104] S72, clamping the adhesive tape at the adhesive outlet point after being pulled out to a preset length by a clamping member;

[0105] S73, use the adhesive suction head to absorb the pulled tape

[0106] S73, cutting off the adhesive tape at the adhesive outlet point by using an adhesive tape cutter;

[0107] S74, moving the cut adhesive tape to be attached to the end surface of the first combining member through the adhesive suction head, so that the adhesive tape covers the connection area between the first material and the second material.

[0108] In this embodiment, the length of the tape cut each time can be a preset length by the cooperation of the adhesive pulling member and the tape cutter. In addition, the adhesive suction head absorbs the pulled tape, which can prevent the tape from bouncing when the tape cutter cuts.

[0109] As an implementation mode, the preset length can be controlled by adjusting the moving stroke of the rubber pulling member.

[0110] As an implementation mode, an anti-sticking layer such as a Teflon layer is sprayed on the adhesive pulling member, the clamping member and / or the tape cutter to prevent the tape from sticking during the handling process.

[0111] As an implementation method, the adhesive tape can be connected by vacuum adsorption or physical adsorption. After the adhesive tape is adsorbed by the adhesive tape, the adhesive puller and the clamping member can release the adhesive tape, and then the adhesive tape is moved to the end surface of the first coupling member. The end of the adhesive tape can be clamped by the clamping member to prevent the adhesive tape from rebounding and warping after being cut.

[0112] In one embodiment, after the gluing operation is performed, the method further includes:

[0113] S8, performing a gluing and hot pressing curing operation on the first combined component to obtain a second combined component;

[0114] The hot pressing and curing operation includes: using the upper hot pressing block and the lower hot pressing block to perform hot pressing for a preset time on the glue-attaching areas on the two end surfaces of the first combining member respectively.

[0115] The hot pressing and curing operation can be performed by a hot pressing and curing assembly. The hot pressing and curing assembly includes the above-mentioned upper hot pressing block, the lower hot pressing block and the hot pressing and curing table. The upper hot pressing block and / or the lower hot pressing block can be raised and lowered on the hot pressing and curing table. Take the lower hot pressing block as an example, in which the upper hot pressing block is fixed and the lower hot pressing block is raised and lowered. Before the hot pressing and curing operation, the first binding member is conveyed to the lower hot pressing block, and then the upper hot pressing block descends and cooperates with the lower hot pressing block to press the first binding member, so that the adhesive on the two end surfaces of the first binding member melts, so that the adhesive is further cured.

[0116] In one embodiment, before the second material is coated with glue in the above step S2, the following steps may be included:

[0117] S201, passing the second material through one or more guiding rollers for guiding operation;

[0118] S202, passing the second material through a shaping roller for flattening operation;

[0119] S203, cutting the second material to obtain tabs.

[0120] Specifically, the second material discharge assembly includes one or more guide rollers, which are provided with grooves adapted to the width of the second material, and the second material is inserted into the grooves, and the second material can be straightened by the rotation of the guide rollers.

[0121] The flattening operation can be performed by a flattening mechanism in the second material discharge assembly. The tableting mechanism includes at least two rollers arranged opposite to each other, and the second material passes between the two rollers arranged opposite to each other, and the second material is flattened by the two rollers.

[0122] As an implementation mode, a spring may be connected to the roller so that the spring can play a buffering role when the roller contacts the second material, thereby preventing damage to the tab strip due to excessive pressure.

[0123] As an embodiment, the guiding rollers may be arranged upstream and downstream of the flattening mechanism so that the tab material strips are guided before and after the sheeting operation.

[0124] The second aspect of the present application provides a pole piece and pole ear composite device, see Figure 3 , which comprises: a first material discharge assembly 10, a second material discharge assembly 20 and a compound assembly 30. The pole piece and pole tab compounding equipment provided in this embodiment can be used to perform the pole piece and pole tab compounding method described in any of the above embodiments.

[0125] The first material discharge component 10 is used for discharging the first material and for discharging the first material into the composite component 30; the second material discharge component 20 is used for discharging the second material and for discharging the second material into the composite component 30, so that the second material is located in the vertical direction of the first material on the composite component 30; the pretreatment component 23 is arranged between the second material discharge component 20 and the composite component 30; the second material passes through the pretreatment component 23; the pretreatment component 23 is used to perform a glue coating operation on the second material; the composite component 30 is used to perform a hot pressing composite operation on the first material and the second material to obtain a first combination.

[0126] See also Figure 3 and Figure 4 The first material discharge assembly 10 includes: a first material cutting table 11, a first material cutter 12, a deflection correction table 13 and a dust collector 14. The deflection correction table 13 is used to place the electrode sheet strip; the first material cutter 12 is movably arranged on the first material cutting table 11, and is used to cut the first material on the deflection correction table 13; the deflection correction table 13 is movably arranged, and is used to drive the first material to move, so that the relative position of the first material cutter 12 and the first material meets the cutting position requirement; the dust collector 14 is used to perform a first dust removal process on the cut first material.

[0127] In this embodiment, the deflection correction table 13 can at least move in the horizontal direction. And the first material cutting table 11 can be arranged on the deflection correction table 13. The first material cutter 12 can move on the first material cutting table 11 at least in the vertical direction. The first material cutter 12 is connected to the cutter cylinder 15 arranged on the first material cutting table 11, and the first material cutter 12 can be driven to rise and fall through the cutter cylinder 15. The deflection correction table 13 is connected to the deflection correction motor 17; the deflection correction motor 17 can drive the deflection correction table 13 to move horizontally. And the deflection correction motor 17 is connected to the deflection correction sensor 16. The deflection correction sensor 16 can sense the position of the pole piece strip on the deflection correction table 13, so as to judge whether the relative position of the pole piece strip and the first material cutter 12 meets the cutting position requirements.

[0128] The first material discharge assembly 10 provided in this embodiment can automatically correct the position of the first material to ensure the cutting effect of the electrode piece.

[0129] As an implementation mode, one or more buffer mechanisms 90 may be provided on the electrode piece and electrode tab composite device. The buffer mechanism 90 may buffer the cut electrode piece, the cut electrode tab, the first combination member and the second combination member.

[0130] As an implementation method, a waste box 18 is provided below the deflection correction platform 13. The waste box 18 can absorb waste generated by cutting the pole piece strip through negative pressure adsorption.

[0131] In one embodiment, the pretreatment component 23 includes: a surface cleaning component 22 and / or a surface carving component 27; the surface cleaning component 22 is used to perform dust removal and / or deburring on the surface of the second material; the surface carving component 27 is used to perform roughening on the surface of the second material to increase the roughness of part or all of the surface of the second material. The surface cleaning component 22 can grind, stamp, wipe, etc. on the surface of the second material to remove dust and burrs adhered to the second material after cutting, thereby achieving clean pretreatment of the second material. The surface carving component 27 is provided with etching tools such as ultrasonic welding heads, which can etch lines on the second material to increase the surface friction of the second material coating area, thereby enabling the first material and the second material to fit more firmly in the subsequent composite process.

[0132] See also Figure 3 and Figure 5 The second material discharge assembly 20 provided in this embodiment includes: a second material cutting table 21.

[0133] The second material cutting table 21 is used for allowing the second material to pass through and cutting the second material; then it is transported to the surface cleaning component 22 for surface cleaning pretreatment of the second material; then it is transported to the pretreatment component 23 for gluing and surface roughening pretreatment of the second material; the composite component 30 is used for placing the pole ear and the pole piece and performing hot pressing composite operation on the pole ear and the pole piece to obtain the first combination.

[0134] In this embodiment, the composite component 30 can be arranged on the side of the downstream of the pretreatment component 23, so that the electrode ear after the glue coating operation can be quickly hot-pressed and composited with the electrode sheet.

[0135] In this embodiment, the second material discharge assembly 20 is further provided with one or more guide rollers 24 , a sheet pressing mechanism 25 and a preliminary detection mechanism 26 .

[0136] The guide roller 24 is provided with a groove adapted to the width of the tab material strip, and the tab material strip is inserted into the groove. The tab material strip can be straightened by the rotation of the guide roller 24. The sheet pressing mechanism 25 includes at least two rollers arranged opposite to each other, and the tab material strip passes between the two rollers arranged opposite to each other, and the tab material strip is flattened by the two rollers. The preliminary detection mechanism 26 can be used to perform the above-mentioned preliminary resistance detection on the tab material strip.

[0137] In one embodiment, the second material discharge assembly 20 further includes a conveying track; the conveying track may be one or more sections. A slidable clamp is provided on the conveying track. The conveying track passes through the second material cutting station 21, the surface cleaning assembly 22, the pretreatment assembly 23 and the composite assembly 30, and can sequentially convey the cut tabs to each workbench in the order of operation. In one embodiment, please refer to Figure 3 and Figure 6 The pole piece and pole ear composite device further includes: a resistance detection component 40. The resistance detection component 40 is arranged downstream of the composite component 30, and is used to perform resistance detection on multiple connection points on the first combination member.

[0138] In a more specific embodiment, the resistance detection component 40 includes: a detection platform 41, a pressure plate 42 and a plurality of probes 43; the plurality of probes 43 are arranged on the pressure plate 42, and the positions of the probes 43 on the pressure plate 42 can be adjusted; the pressure plate 42 can be raised and lowered on the detection platform 41 to press the first binding member so that the plurality of probes 43 can perform point detection on the first binding member.

[0139] The pressing plate 42 is connected to the output end of the pressing plate motor 44 on the test platform 41, and the pressing plate motor 44 can drive the pressing plate 42 to rise and fall. During the resistance detection process, the pressing plate 42 can be lowered to press the pole piece to prevent the pole piece from moving. The probe 43 on the pressing plate 42 can be moved and adjusted to meet the detection requirements of different pole ears.

[0140] In one embodiment, see Figure 3 and Figure 7 , the pole piece and pole ear composite equipment also includes: a glue sticking component 50;

[0141] The adhesive laminating assembly 50 includes: an adhesive laminating platform 55 , an adhesive pulling member 51 , a clamping member 52 , an adhesive suction head 56 , an adhesive tape cutter 53 and an adhesive tape feeding roller 54 . The glue sticking platform 55 is used for allowing the first combination to pass through and supporting the first combination; the tape feeding roller 54 is arranged on the glue sticking platform 55, and is used to release the tape to the glue outlet point on the glue sticking platform 55; the glue pulling member 51 is movably arranged on the glue sticking platform 55, and is used to clamp the tape at the glue outlet point and pull the tape to move; the clamping member 52 is movably arranged on the glue sticking platform 55, and is used to clamp the tape after being pulled out of a preset length; the glue suction head 56 is movably arranged on the glue sticking platform 55, and is used to absorb the cut tape; the tape cutter 53 is used to cut the tape at the glue outlet point; when the tape cutter 53 cuts the tape, the tape is clamped by the glue pulling member 51, and is clamped by the clamping member and is sucked by the glue suction head, so that the cut tape will not bounce or move. Afterwards, the glue suction head 56 moves the tape to be attached to the end surface of the first combination.

[0142] In this embodiment, the adhesive pulling member 51 can move horizontally on the adhesive sticking platform 55, and the adhesive pulling member 51 is provided with an openable and closable clamping head, which can clamp the adhesive tape. The adhesive suction head 56 can be arranged above the adhesive pulling member 51, or can be arranged below the adhesive pulling member 51. The clamping member 52 can be a pressure head driven by a cylinder. When the tape cutter 53 cuts the adhesive tape, the clamping member 52 presses the adhesive tape at the adhesive outlet point to avoid tension rebound when the adhesive tape is disconnected.

[0143] It should be noted that before the tape cutter 53 cuts the tape, the tape suction head 56 can be moved to absorb the extended tape to prevent the tension rebound when the tape is cut from affecting the cut portion of the tape.

[0144] In actual applications, the operation process of the glue sticking component 50 can be: the glue pulling component 51 clamps the end of the tape, and the clamping component 52 rises and leaves the tape, so that the glue pulling component 51 can pull the tape to a preset length; after the tape is pulled out, the clamping component 52 presses down to compress the tape; the glue suction head 56 moves down to absorb the protruding tape; the tape cutter 53 moves to cut the tape.

[0145] In one embodiment, two glue pulling members 51, two clamping members 52, two glue suction heads 56, two tape cutters 53 and two tape feeding rollers 54 are symmetrically arranged on the glue sticking platform 55, so that the glue sticking operation can be performed on the two end surfaces of the first connecting member respectively.

[0146] In one embodiment, the pole piece and tab assembly equipment further includes: a hot press curing assembly 60. The hot press curing assembly 60 is disposed downstream of the glue sticking assembly 50, and is used to perform a glue sticking hot press curing operation on the first bonding member after glue sticking.

[0147] The hot pressing and curing assembly includes an upper hot pressing block, a lower hot pressing block and a hot pressing and curing table. The upper hot pressing block and / or the lower hot pressing block can be raised and lowered on the hot pressing and curing table. Take the lower hot pressing block as an example, where the upper hot pressing block is raised and lowered. Before the hot pressing and curing operation, the first bonding member is transported to the lower hot pressing block, and then the upper hot pressing block descends and cooperates with the lower hot pressing block to press the first bonding member, so that the adhesive on the two end surfaces of the first bonding member melts, so that the adhesive is further cured, thereby forming a second bonding member.

[0148] In one embodiment, the electrode piece and tab composite equipment further includes: a detection component 70. The detection component 70 may be a CCD detection mechanism, which can perform double-sided detection on the second combination after hot pressing and curing to determine whether the first combination meets the requirements.

[0149] In one embodiment, the pole piece and tab composite equipment further includes: a winding assembly 80. The winding assembly 80 may include a winding roller, a protective film roll 81 and a tension swing rod. The second combination member passes through the tension swing rod, and the tension of the second combination member is adjusted by the tension swing rod. The protective film roll 81 is used to release the protective film and make the protective film attached to the second combination member. The winding roller is used to wind up the combined second combination member and the protective film.

[0150] The above are only preferred embodiments of the present application and are not intended to limit the present invention. Although the present application has been described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the aforementioned examples or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for assembling a pole piece and a pole ear, characterized in that: include: Discharging the first material into the composite component; Applying glue to the second material and then placing the second material onto the composite component so that the second material is located in the vertical direction of the first material; The first material and the second material are subjected to hot pressing and composite operation by the composite component to obtain a first combined part.

2. The pole piece and pole ear composite method according to claim 1, characterized in that: The step of coating the second material with glue and discharging the second material to the composite component further comprises: The surface of the second material is subjected to cleaning pretreatment and / or surface roughening pretreatment.

3. The pole piece and pole ear composite method according to claim 1, characterized in that: After the hot pressing and laminating operation is performed, the method further comprises: The first combining member is subjected to point detection, wherein the point detection is used to detect the resistance values ​​of a plurality of preset connection points between the first material and the second material.

4. The pole piece and pole ear composite method according to claim 1, characterized in that: After the hot pressing and laminating operation is performed, the method further comprises: A gluing operation is performed on one or more end surfaces of the first combining member.

5. The pole piece and pole ear composite method according to claim 4, characterized in that: The gluing operation includes: Clamp one end of the tape by means of a glue pulling piece, and pull the tape out to a preset length from the glue outlet point; Clamping the adhesive tape at the adhesive outlet point after being pulled out to a preset length by a clamping member; Adsorbing the pulled out adhesive tape by using an adhesive suction head; Cutting the adhesive tape at the adhesive outlet point by using an adhesive tape cutter; The cut adhesive tape is moved to the end surface of the first combining member by the adhesive suction head, so that the adhesive tape covers the connection area between the first material and the second material.

6. The pole piece and pole ear composite method according to claim 4 or 5, characterized in that: After the gluing operation is performed, the method further includes: The first bonding member is subjected to a glue lamination, hot pressing and curing operation.

7. A pole piece and pole ear composite device, characterized in that: include: A first material discharge component (10), a second material discharge component (20), a pre-treatment component (23) and a composite component (30); The first material discharge component (10) is used for discharging a first material, and for discharging the first material into the composite component (30); The second material discharge component (20) is used for discharging a second material, and is used for discharging the second material to the composite component (30), so that the second material is located in a vertical direction of the first material on the composite component (30); The pre-processing component (23) is arranged between the second material discharging component (20) and the composite component (30); The second material passes through the pretreatment component (23); The pretreatment component (23) is used to perform a gluing operation on the second material; The composite component (30) is used to perform a hot pressing composite operation on the first material and the second material to obtain a first combined component.

8. The pole piece and tab composite equipment according to claim 7, characterized in that: Also included: a resistance detection component (40); The resistance detection component (40) is arranged downstream of the composite component (30) and is used to perform resistance detection on a plurality of connection points on the first combining member.

9. The pole piece and tab composite equipment according to claim 7, characterized in that: Also includes: Glue sticking assembly (50); The adhesive laminating assembly (50) comprises: an adhesive laminating platform (55), an adhesive pulling member (51), an adhesive suction head (56), an adhesive tape cutter (53) and an adhesive tape unwinding roller (54); The glue sticking platform (55) is used for allowing the first combining component to pass through and for supporting the first combining component; The adhesive tape unwinding roller (54) is arranged on the adhesive laminating platform (55) and is used for unwinding the adhesive tape; The adhesive pulling member (51) is movably arranged on the adhesive sticking platform (55) and is used for pulling out the adhesive tape; The tape cutter (53) is used to cut the tape; The adhesive suction head (56) is movably arranged on the adhesive sticking platform (55) and is used to absorb the cut adhesive tape and move the adhesive tape to be stuck on the end surface of the first combining member.

10. The pole piece and tab composite equipment according to claim 9, characterized in that: Also includes: Heat-pressing and curing the assembly (60); The hot-pressing and curing component (60) is arranged downstream of the gluing component (50) and is used to perform a gluing and hot-pressing curing operation on the first bonding component after gluing.

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