Battery pole piece laser cutting device

By designing a laser cutting device for battery electrodes, and employing optical path transmission components and air blowing and dust suction components, the problems of limited cutting size and surface damage of battery electrodes in existing technologies have been solved, achieving efficient and deformation-free cutting results and improving the yield rate.

CN223876306UActive Publication Date: 2026-02-06SHENZHEN JIXIANGYUN TECH CO LTD
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Patent Information

Application Number
CN202520118925.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-19
Publication Date
2026-02-06
Estimated Expiration
2035-01-19

AI Technical Summary

Technical Problem

Existing single-head picosecond laser cutting solutions for battery electrodes are limited in size and are prone to surface cracking and burrs, as well as plastic strain on the intermediate metal foil, resulting in low yield.

Method used

A laser cutting device for battery electrodes was designed, comprising an optical path transmission component, an air blowing component, and a dust suction component. By adjusting the angles of the dust suction and air blowing components, and cooperating with the translation cylinder to drive the adsorption seat to move, rapid cutting is achieved, reducing the impact of laser thermal effects on the electrodes and improving cutting quality.

Benefits of technology

This technology enables rapid cutting of battery electrodes, reduces surface dust and scorching, improves the cutting qualification rate, avoids electrode deformation, and increases the yield rate.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a battery pole piece laser cutting device which comprises a machine body, a machine frame is arranged on the machine body, and a light path conduction assembly is arranged on the machine frame. An adsorption seat is slidably arranged on the machine body and used for adsorbing and fixing a battery pole piece needing to be cut. An air blowing assembly and a dust collection assembly are arranged on the machine body and located on the two sides of the adsorption base correspondingly. By adjusting the angle of the air blowing connecting frame and fixing the air blowing connecting frame through bolts, the angle of the air blowing connecting frame can be adjusted as well, dust on the surface of the battery pole piece is blown away, the dust blowing effect is better achieved through cooperation with the effect of the dust collection assembly, and the side air blowing and dust collection device is additionally arranged; the undesirable phenomena of edge melting and scorching of the material caused by the laser heat effect and smudginess of particles attached to the surface of the pole piece are reduced, the deformation influence on the battery pole piece is avoided, and the percent of pass is high.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery pole piece processing technical field, concretely relates to a battery pole piece laser cutting device. BACKGROUND

[0002] With the breakthrough upgrading of blade battery technology, the performance and endurance mileage of the battery are the key to the upgrading of the whole new energy automobile industry. Among the numerous technological innovations, blade battery technology is currently a battery technology with excellent performance. With its unique design, it has excellent performance. For the processing of large-area blade battery pole pieces, new solutions are needed to adapt to new applications.

[0003] The existing single-head picosecond laser cutting battery pole piece scheme has obvious shortcomings, size limitations, and is prone to cause surface cracking and burr problems during battery pole piece cutting. The metal foil in the middle layer is also prone to plastic strain, resulting in poor yield. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a battery pole piece laser cutting device to solve the problems in the above background.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A battery pole piece laser cutting device, comprising a machine body, a rack is provided on the machine body, and a light path transmission assembly is provided on the rack;

[0007] An adsorption seat is slidably provided on the machine body;

[0008] Air blowing assemblies and dust suction assemblies are respectively provided on both sides of the adsorption seat on the machine body;

[0009] The dust suction assembly comprises dust suction stands symmetrically provided on the machine body, a dust suction frame is provided between the two dust suction stands, and a plurality of dust suction ports are provided on one side of the dust suction frame.

[0010] As a further scheme of the utility model, adjusting ears are symmetrically provided at both ends of the dust suction frame, angle adjusting grooves are formed in the adjusting ears, and the adjusting ears are connected with the dust suction stands through bolts.

[0011] As a further scheme of the utility model, the air blowing assembly comprises air blowing stands symmetrically provided on the machine body, air blowing adjusting frames are bolted to the end portions of the air blowing stands, and air blowing grooves are provided between the two air blowing adjusting frames.

[0012] As a further scheme of the utility model, air blowing connecting frames are symmetrically provided at both ends of the air blowing grooves, and the two air blowing connecting frames are respectively bolted with the two air blowing adjusting frames.

[0013] As a further scheme of the utility model: the machine body is provided with a translation slide rail, the adsorption seat is slidably arranged on the translation slide rail;

[0014] The machine body is provided with a translation cylinder at one end of the translation slide rail, and the extension end of the translation cylinder is fixedly connected with the adsorption seat.

[0015] As a further scheme of the utility model: the light path transmission assembly comprises a laser fixedly arranged on the rack, and the laser is provided with a beam expander at one end;

[0016] The light path transmission assembly further comprises a galvanometer fixedly arranged on the side of the rack, and the galvanometer is provided with a field lens below.

[0017] As a further scheme of the utility model: one side of the rack is provided with a vertical frame, the vertical frame is slidably provided with a sliding block at one side, and the galvanometer is fixedly arranged at one side of the sliding block.

[0018] The utility model has the advantages of:

[0019] The light path transmission assembly is adopted for cutting, during the cutting process, the light path transmission assembly can realize up-down movement, and the movement of the battery pole piece on the adsorption seat can be realized by cooperating with the translation cylinder, so that the product can be quickly cut; the angle of the air blowing connecting frame can be adjusted and fixed by the bolt, the angle of the air blowing connecting frame can also be adjusted, dust on the surface of the battery pole piece is blown away, the effect of dust blowing is better, the side air blowing and the dust suction device are increased, the adverse phenomena of edge fusion and scorching caused by the laser heat effect on the material and particle adhesion on the surface of the pole piece are reduced, the battery pole piece is not deformed, and the qualified rate is high. DRAWINGS

[0020] The utility model will be further described below in combination with the drawings.

[0021] Figure 1 It is the whole structure schematic diagram of the utility model;

[0022] Figure 2 It is the whole structure front view schematic diagram of the utility model;

[0023] Figure 3 It is the air blowing assembly connecting structure schematic diagram in the utility model;

[0024] Figure 4 It is Figure 3 A region amplification structure schematic diagram in the utility model.

[0025] In the figure: 1, body; 11, rack; 2, light path transmission assembly; 20, field lens; 21, galvanometer; 22, beam expander; 23, laser; 30, vertical frame; 31, sliding block; 4, air blowing assembly; 41, air blowing vertical frame; 42, air blowing adjusting frame; 43, air blowing groove; 44, air blowing connecting frame; 5, dust suction assembly; 51, dust suction vertical frame; 52, dust suction frame; 520, angle adjusting groove; 521, adjusting lug; 522, dust suction port; 6, adsorption seat; 61, translation sliding rail; 62, translation air cylinder. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be apparently and completely described in connection with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figure 1 - Figure 4 As shown in the figure, the utility model is a kind of battery pole piece laser cutting device, including body 1, body 1 is provided with rack 11, rack 11 is provided with light path transmission assembly 2;

[0028] Body 1 is slidably provided with adsorption seat 6, for adsorbing and fixing the battery pole piece needing cutting;

[0029] Body 1 and the both sides of adsorption seat 6 are respectively provided with air blowing assembly 4 and dust suction assembly 5;

[0030] Dust suction assembly 5 includes dust suction vertical frame 51 symmetrically arranged above body 1, dust suction frame 52 is arranged between the two dust suction vertical frames 51, a plurality of dust suction ports 522 are arranged on one side of dust suction frame 52, adjusting lug 521 is symmetrically arranged at the both ends of dust suction frame 52, angle adjusting groove 520 is formed in adjusting lug 521, adjusting lug 521 is connected with dust suction vertical frame 51 by bolt, the angle of adjusting lug 521 at the both ends of dust suction frame 52 is adjusted, then adjusting lug 521 is fixed on dust suction vertical frame 51 by bolt, the angle of dust suction port 522 can be adjusted, then the dust suction on the surface of battery pole piece is adsorbed, and the dust on the surface of battery pole piece is removed.

[0031] The blowing assembly 4 comprises a blowing stand 41 symmetrically arranged on the fuselage 1, and a blowing adjusting frame 42 is bolted to the end of the blowing stand 41, a blowing groove 43 is arranged between the two blowing adjusting frames 42, blowing connecting frames 44 are symmetrically arranged at the two ends of the blowing groove 43, and the two blowing connecting frames 44 are bolted to the two blowing adjusting frames 42 respectively, the angle of the blowing connecting frame 44 can be adjusted and fixed through a bolt, the angle of the blowing connecting frame 44 can also be adjusted, dust on the surface of the battery pole piece is blown away, the blowing effect is better in cooperation with the dust suction assembly 5, the side blowing and dust suction device are increased, the phenomena of edge fusion and scorching caused by the laser heat effect and the attachment of particles on the surface of the pole piece are reduced, the battery pole piece is not deformed, and the qualified rate is high.

[0032] The fuselage 1 is provided with a translation slide rail 61, and the suction seat 6 is slidably arranged on the translation slide rail 61; the translation slide rail 61 is arranged on one end of the fuselage 1, and a translation air cylinder 62 is arranged on the one end of the translation slide rail 61; the extension end of the translation air cylinder 62 is fixedly connected with the suction seat 6; the movement of the suction seat 6 is controlled through the extension and retraction of the translation air cylinder 62; on the one hand, the positioning of the battery pole piece during the cutting process can be realized; on the other hand, the dust on the surface of the battery pole piece can be removed in cooperation with the blowing assembly 4 and the dust suction assembly 5.

[0033] The light path transmission assembly 2 comprises a laser 23 fixedly arranged on the rack 11, and a beam expander 22 is arranged at one end of the laser 23; the light path transmission assembly 2 further comprises a galvanometer 21 fixedly arranged on the side of the rack 11, and a field lens 20 is arranged below the galvanometer 21; in the laser cutting device, the light path transmission assembly 2 is used for cutting; during the cutting process, the light path transmission assembly 2 can realize up-down movement, and the movement of the battery pole piece on the suction seat 6 can be realized in cooperation with the translation air cylinder 62, so that the product can be quickly cut;

[0034] In the design, three groups of light path transmission assemblies 2 are designed, the power of the laser 23 is greater than 300W, and the pulse width is less than 12ps, so that the effect of high-speed cutting can be realized, and large-area pole piece cutting can be realized;

[0035] One side of the rack 11 is provided with a vertical frame 30, a sliding block 31 is slidably arranged on one side of the vertical frame 30, and the galvanometer 21 is fixedly arranged on one side of the sliding block 31; the sliding block 31 is driven to move up and down through the rotation of a screw rod.

[0036] Working principle of the utility model:

[0037] During work, the battery pole piece is placed on the suction seat 6, then the dust on the surface of the battery pole piece is removed through the dust suction assembly 5 and the blowing assembly 4, then the laser 23 is started, the laser beam passes through the beam expander 22, the galvanometer 21 and the field lens 20, and then the battery pole piece on the suction seat 6 is cut, and during the cutting process, the blowing assembly 4 is kept on.

[0038] The above has carried out the detailed description to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equal changes and improvements etc. that are made in the utility model application scope should still belong to the patent coverage scope of the utility model.

Claims

1. A battery pole piece laser cutting device, characterized in that, Including fuselage (1), the fuselage (1) is provided with a rack (11), the rack (11) is provided with light path transmission assembly (2); The fuselage (1) is provided with a suction seat (6) slidingly; The fuselage (1) and the suction seat (6) are provided with a blowing assembly (4) and a dust collection assembly (5) on both sides respectively; The dust collection assembly (5) includes a dust collection stand (51) symmetrically arranged above the fuselage (1), a dust collection frame (52) is arranged between the two dust collection stands (51), and a plurality of dust collection ports (522) are arranged on one side of the dust collection frame (52).

2. The battery pole piece laser cutting device of claim 1, wherein, Both ends of the dust collection frame (52) are symmetrically provided with adjusting ears (521), the adjusting ears (521) are provided with angle adjusting grooves (520), and the adjusting ears (521) and the dust collection stand (51) are connected by bolts.

3. The battery pole piece laser cutting device of claim 1, wherein, The blowing assembly (4) includes a blowing stand (41) symmetrically arranged on the fuselage (1), the blowing stand (41) is bolted with a blowing adjusting frame (42) at the end, and a blowing groove (43) is arranged between the two blowing adjusting frames (42).

4. The battery pole piece laser cutting device of claim 3, wherein, Both ends of the blowing groove (43) are symmetrically provided with blowing connecting frames (44), and the two blowing connecting frames (44) are bolted with the two blowing adjusting frames (42) respectively.

5. The battery pole piece laser cutting device of claim 1, wherein, The fuselage (1) is provided with a translation slide rail (61), and the suction seat (6) is slidingly arranged on the translation slide rail (61); The fuselage (1) is provided with a translation slide rail (61), and the suction seat (6) is slidingly arranged on the translation slide rail (61); 6. The battery pole piece laser cutting device of claim 1, wherein, The light path transmission assembly (2) includes a laser (23) fixedly arranged on the rack (11), and the laser (23) is provided with a beam expander (22) at one end. The light path transmission assembly (2) further includes a galvanometer (21) fixedly arranged on the side of the rack (11), and a field lens (20) is arranged below the galvanometer (21).

7. The battery pole piece laser cutting device of claim 6, wherein, One side of the rack (11) is provided with a vertical frame (30), a sliding block (31) is slidingly arranged on one side of the vertical frame (30), and the galvanometer (21) is fixedly arranged on one side of the sliding block (31).