Pole piece processing equipment

Abstract

The utility model provides pole piece processing equipment which comprises a first baffle, a second baffle and a third baffle, the first baffle is located above a pole piece so as to form a first gas flow channel between the first baffle and the pole piece, and the second baffle and the third baffle are located above the pole piece and arranged at an interval so as to form a second gas flow channel between the second baffle and the pole piece. A second gas flow channel is formed between the second baffle and the third baffle, and an outlet of the first gas flow channel is adjacent to an inlet of the second gas flow channel in the first direction; the first blowing mechanism is arranged at an inlet of the first gas flow channel; the dust collection mechanism is arranged at an outlet of the second gas flow channel; and the laser is arranged above the pole piece and is aligned with a gap between the outlet of the first gas flow channel and the inlet of the second gas flow channel in the second direction. The pole piece processing equipment has the technical effects of high processing efficiency and dust reduction, and also can prevent the pole piece from shaking in the processing process.

Description

Technical Field

[0001] The present application mainly relates to the field of battery production and manufacturing technology, and in particular to a pole piece processing equipment. Background Art

[0002] Wetting has always been a difficult problem in the battery field. Poor or uneven wetting will cause differences in the solid electrolyte interface (SEI), and the differences will further expand as the number of cycles increases, thus affecting the life of the battery. By changing the pole piece structure through laser etching processing technology, micron-level channels can be added to the surface of the pole piece, thereby shortening the wetting distance and improving the ability to absorb and retain liquid. The current laser etching process is to place the pole piece horizontally and use a laser to make notches in the width direction. For pole pieces with a wider width, the processing efficiency is slow, and the dust generated during the processing of the pole piece cannot be controlled. Dust falling on the pole piece will cause the battery to short-circuit. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a pole piece processing device, which has the technical effects of high processing efficiency and reduced dust, and can also prevent the pole piece from shaking during the processing.

[0004] To solve the above technical problems, the present application provides a pole piece processing equipment, including: a first baffle, a second baffle and a third baffle, the first baffle being located above the pole piece to form a first gas flow channel between the first baffle and the pole piece, the second baffle and the third baffle being located above the pole piece and spaced apart to form a second gas flow channel between the second baffle and the third baffle, the outlet of the first gas flow channel and the inlet of the second gas flow channel being adjacent in a first direction; a first blowing mechanism, arranged at the inlet of the first gas flow channel; a dust suction mechanism, arranged at the outlet of the second gas flow channel; and a laser, arranged above the pole piece and aligned with the gap between the outlet of the first gas flow channel and the inlet of the second gas flow channel in a second direction.

[0005] In one embodiment of the present application, the left end of the first baffle is farther away from the pole piece than the right end of the first baffle, the right end of the second baffle is farther away from the pole piece than the left end of the second baffle, and the right end of the third baffle is farther away from the pole piece than the left end of the third baffle.

[0006] In one embodiment of the present application, it also includes: a fourth baffle, which is located between the third baffle and the pole piece to form a third gas flow channel between the fourth baffle and the pole piece, and the outlet of the third gas flow channel is adjacent to the inlet of the second gas flow channel and is located on the right side of the inlet of the second gas flow channel.

[0007] In one embodiment of the present application, it also includes: a second blowing mechanism, which is arranged at the inlet of the third gas flow channel.

[0008] In one embodiment of the present application, the second air blowing mechanism includes an air supply air knife.

[0009] In one embodiment of the present application, it also includes: an adsorption mechanism, which is arranged below the pole piece.

[0010] In one embodiment of the present application, the adsorption mechanism includes a support plate and a negative pressure unit, the support plate is used to support the pole piece, and the negative pressure unit is used to adsorb the pole piece.

[0011] In one embodiment of the present application, the laser includes a laser light source and a diffractive optical element.

[0012] In one embodiment of the present application, the first air blowing mechanism includes a positive pressure air knife.

[0013] In one embodiment of the present application, the dust suction mechanism includes a negative pressure dust suction unit.

[0014] The laser in the pole piece processing equipment of the present application can emit multiple laser beams at the same time. When processing pole pieces, multiple pole pieces can be processed at the same time, which improves the processing efficiency; the dust suction mechanism forms a negative pressure in the second gas flow channel by suctioning air, thereby collecting dust in the air flow; in addition, the adsorption mechanism in the pole piece processing equipment fixes the pole piece by supporting and adsorbing the pole piece, thereby preventing the pole piece from shaking during the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are included to provide a further understanding of the present application. They are included and constitute a part of the present application. The accompanying drawings illustrate embodiments of the present application and together with the present specification serve to explain the principles of the present application. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of a pole piece processing device in one embodiment of the present application under the main viewing angle;

[0017] Figure 2 It is a schematic diagram of the structure of a pole piece processing equipment in one embodiment of the present application from a top view.

[0018] Reference numerals

[0019] First baffle 110 Laser 180

[0020] Second baffle 120 Laser light source 181

[0021] Third baffle 130 Diffractive optical element 182

[0022] First gas flow channel 140 Fourth baffle 190

[0023] Second gas flow channel 150 Third gas flow channel 210

[0024] First blowing mechanism 160 Second blowing mechanism 220

[0025] Dust suction mechanism 170 Adsorption mechanism 230 DETAILED DESCRIPTION

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for the description of the embodiments. Obviously, the drawings described below are only some examples or embodiments of the present application. For ordinary technicians in this field, the present application can also be applied to other similar scenarios based on these drawings without creative work. Unless it is obvious from the language environment or otherwise explained, the same reference numerals in the figures represent the same structure or operation.

[0027] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "an" and / or "the" do not refer to the singular and may also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of the steps and elements that have been clearly identified, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0028] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0029] In the description of the present application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present application; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] In addition, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning and cannot be understood as limiting the scope of protection of this application. In addition, although the terms used in this application are selected from well-known and commonly used terms, some terms mentioned in the specification of this application may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article. In addition, it is required to understand this application not only by the actual terms used, but also by the meaning implied by each term.

[0032] Next, the electrode processing equipment of the present application is described through examples.

[0033] Figure 1 is a schematic structural diagram of a pole piece processing device in an embodiment from a main viewing angle, Figure 2 Schematic diagram of the structure of the electrode processing equipment in one embodiment from a top view. Figure 1 and Figure 2 As shown, Figure 1 and Figure 2The pole piece processing equipment in the embodiment includes a first baffle 110, a second baffle 120 and a third baffle 130. The first baffle 110, the second baffle 120 and the third baffle 130 are all located above the pole piece 10, and a first gas flow channel 140 is formed between the first baffle 110 and the pole piece 10. The first gas flow channel 140 extends along a first direction D1, and the inlet of the first gas flow channel 140 is located on the left side, and the outlet of the first gas flow channel 140 is located on the right side. The gas can enter the first gas flow channel 140 from the inlet and flow out of the first gas flow channel 140 from the outlet.

[0034] exist Figure 1 In the embodiment of the present invention, the left end of the first baffle 110 is farther away from the pole piece 10 than the right end of the first baffle 110. In other words, in the second direction D2, the left end of the first baffle 110 is located above the right end of the first baffle 110. In this way, a trumpet-shaped first gas flow channel 140 can be formed between the first baffle 110 and the pole piece 10, that is, the inlet of the first gas flow channel 140 is larger than the outlet of the first gas flow channel 140. The larger inlet is conducive to the external gas entering the first gas flow channel 140 from the inlet, and the smaller outlet is conducive to increasing the flow rate of the gas at the outlet. In some other embodiments, the first baffle 110 can also be arranged in parallel with the pole piece 10.

[0035] refer to Figure 1 As shown, the second baffle 120 and the third baffle 130 are located above the pole piece 10 and are spaced apart, and a second gas flow channel 150 is formed between the second baffle 120 and the third baffle 130. The right end of the second baffle 120 is farther away from the pole piece 10 than the left end of the second baffle 120. In other words, in the second direction D2, the right end of the second baffle 120 is located above the left end of the second baffle 120. The right end of the third baffle 130 is farther away from the pole piece 10 than the left end of the third baffle 130. In other words, in the second direction D2, the right end of the third baffle 130 is located above the left end of the third baffle 130. The inlet of the second gas flow channel 150 is located on the right side of the outlet of the second gas flow channel 150, and the gas can enter the second gas flow channel 150 from the inlet and then flow out of the second gas flow channel 150 from the outlet.

[0036] In the first direction D1, the first gas flow channel 140 is located on the left side of the second gas flow channel 150, and the outlet of the first gas flow channel 140 is adjacent to the inlet of the second gas flow channel 150. Figure 1 As shown by the dashed arrow, the gas can enter the first gas flow channel 140 from the inlet of the first gas flow channel 140 and then flow out from the outlet of the first gas flow channel 140. The gas flowing out from the outlet of the first gas flow channel 140 can enter the second gas flow channel 150 from the inlet of the second gas flow channel 150 and then flow out from the outlet of the second gas flow channel 150.

[0037] The electrode processing equipment also includes a first blowing mechanism 160 and a dust suction mechanism 170. The first blowing mechanism 160 is arranged at the entrance of the first gas flow channel 140. The first blowing mechanism 160 can blow air into the first gas flow channel 140, thereby forming an airflow flowing to the right in the first gas flow channel 140. In some embodiments, the first blowing mechanism 160 includes a positive pressure air knife, which can blow air into the first gas flow channel 140. The dust suction mechanism 170 is arranged at the outlet of the second gas flow channel 150, and the dust suction mechanism 170 has a suction function to form a negative pressure in the second gas flow channel 150, so as to suck the gas flowing out of the outlet of the first gas flow channel 140 into the entrance of the second gas flow channel 150, and make the gas in the second gas flow channel 150 flow in the direction from the outlet of the second gas flow channel 150 to the outlet of the second gas flow channel 150. In some embodiments, the dust collection mechanism 170 includes a negative pressure dust collection unit, which forms a negative pressure in the second gas flow channel 150 by suctioning air, thereby collecting dust in the air flow.

[0038] refer to Figure 1 and Figure 2 As shown, the pole piece processing equipment also includes a laser 180. It should be noted that: Figure 2 To simplify the schematic diagram, the laser 180 is not shown from a top view, and the dust collecting mechanism 170 is not shown. The laser 180 is arranged above the pole piece 10, and is aligned with the gap between the outlet of the first gas flow channel 140 and the inlet of the second gas flow channel 150 in the second direction D2. Specifically, the outlet of the first gas flow channel 140 and the inlet of the second gas flow channel 150 are arranged at intervals in the first direction D1. In other words, a gap is arranged between the outlet of the first gas flow channel 140 and the inlet of the second gas flow channel 150. Figure 1 As shown, the pole piece 10 located directly below the gap is the pole piece to be processed, and the laser 180 located above the gap can apply laser to the pole piece 10 located directly below the gap to process the pole piece 10 to be processed. The laser can be used to split the pole piece 10 or to etch the pole piece 10. The laser 180 can emit multiple laser beams at the same time, for example, Figure 1 and Figure 2 As shown by the solid line in FIG. 1 , the laser 180 can emit 6 laser beams at the same time. Thus, when processing the pole piece 10 , 6 pole pieces can be processed (eg, etched or split) at the same time, which is beneficial to improving the processing efficiency.

[0039] In some embodiments, the laser 180 includes a laser light source 181 and a diffractive optical element 182. The diffractive optical element 182 can split the single laser beam emitted by the laser light source 181 into multiple bright spots or generate a specific optical pattern through DOE (Diffractive Optical Element, DOE) technology. Figure 1and Figure 2 In the embodiment of the present invention, the diffractive optical element 182 splits the single laser beam emitted by the laser light source 181 into six laser beams.

[0040] refer to Figure 1 As shown, dust may be generated during the process of laser 180 processing the pole piece 10. The outlet of the first gas flow channel 140 is located on the left side of the pole piece 10 to be processed, and the inlet of the second gas flow channel 150 is located on the right side of the pole piece 10 to be processed. As described above, the first blowing mechanism 160 blows air to the pole piece 10 to be processed through the outlet of the first gas flow channel 140, thereby blowing the dust to the inlet of the second gas flow channel 150, and the dust suction mechanism 170 sucks away the dust through the inlet of the second gas flow channel 150. In this way, the dust generated during the pole piece processing can be removed.

[0041] In one embodiment, the electrode processing equipment further includes a fourth baffle 190 and a second blowing mechanism 220. The fourth baffle 190 is located between the third baffle 130 and the electrode 10 to form a third gas flow channel 210 between the fourth baffle 190 and the electrode 10. Figure 1 As shown, the left end of the fourth baffle 190 can be connected to the lower end of the third baffle 130. The outlet of the third gas flow channel 210 is located on the left side of the inlet of the third gas flow channel 210. The outlet of the third gas flow channel 210 is adjacent to the inlet of the second gas flow channel 150 and is located on the right side of the inlet of the second gas flow channel 150. The second blowing mechanism 220 is disposed at the inlet of the third gas flow channel 210. Figure 1 As shown by the dotted arrow in , the second blowing mechanism 220 can blow air toward the third gas flow channel 210 to form an airflow in the third gas flow channel 210 that flows from the inlet of the third gas flow channel 210 to the outlet of the third gas flow channel 210. The second blowing mechanism 220 can prevent the gas blown from the outlet of the first gas flow channel 140 from blowing dust to the right side of the inlet of the second gas flow channel 150, so that the dust can be collected more effectively.

[0042] In some embodiments, the second blowing mechanism 220 includes an air supply air knife, and the air supply air knife can blow air toward the third gas flow channel 210 .

[0043] refer to Figure 1 As shown, in one embodiment, the pole piece processing equipment further includes an adsorption mechanism 230. The adsorption mechanism 230 is disposed below the pole piece 10. The adsorption mechanism 230 may include a support plate 231 and a negative pressure unit 232. The support plate 231 is located below the pole piece 10 and is used to support the pole piece 10. The negative pressure unit 232 may generate negative pressure to adsorb the back of the pole piece 10. The adsorption mechanism 230 fixes the pole piece 10 by supporting and adsorbing the pole piece 10, thereby preventing the pole piece 10 from shaking during the processing process.

[0044] The basic concepts have been described above. Obviously, for those skilled in the art, the above application disclosure is only an example and does not constitute a limitation of the present application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements and amendments to the present application. Such modifications, improvements and amendments are suggested in the present application, so such modifications, improvements and amendments still belong to the spirit and scope of the exemplary embodiments of the present application.

[0045] At the same time, the present application uses specific words to describe the embodiments of the present application. For example, "one embodiment", "an embodiment", and / or "some embodiments" refer to a certain feature, structure or characteristic related to at least one embodiment of the present application. Therefore, it should be emphasized and noted that "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more in different positions in this specification does not necessarily refer to the same embodiment. In addition, some features, structures or characteristics in one or more embodiments of the present application can be appropriately combined.

[0046] Similarly, it should be noted that in order to simplify the description of the disclosure of this application and thus help understand one or more application embodiments, in the above description of the embodiments of this application, multiple features are sometimes merged into one embodiment, figure or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned in the claims. In fact, the features of the embodiments are less than all the features of the single embodiment disclosed above.

[0047] In some embodiments, numbers describing the number of components and attributes are used. It should be understood that such numbers used in the description of the embodiments are modified by the modifiers "about", "approximately" or "substantially" in some examples. Unless otherwise specified, "about", "approximately" or "substantially" indicate that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may change according to the required features of individual embodiments. In some embodiments, the numerical parameters should take into account the specified significant digits and adopt the general method of retaining digits. Although the numerical domains and parameters used to confirm the breadth of their range in some embodiments of the present application are approximate values, in specific embodiments, the setting of such numerical values ​​is as accurate as possible within the feasible range.

[0048] Although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should recognize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.

Claims

1. A pole piece processing equipment, characterized in that: include: A first baffle (110), a second baffle (120) and a third baffle (130), wherein the first baffle (110) is located above the pole piece to form a first gas flow channel (140) between the first baffle (110) and the pole piece, the second baffle (120) and the third baffle (130) are located above the pole piece and are spaced apart to form a second gas flow channel (150) between the second baffle (120) and the third baffle (130), and an outlet of the first gas flow channel (140) and an inlet of the second gas flow channel (150) are adjacent in a first direction; A first blowing mechanism (160) is arranged at the entrance of the first gas flow channel (140); A dust collecting mechanism (170) is arranged at the outlet of the second gas flow channel (150); as well as The laser (180) is arranged above the pole piece and is aligned with the gap between the outlet of the first gas flow channel (140) and the inlet of the second gas flow channel (150) in the second direction.

2. The pole piece processing equipment according to claim 1, characterized in that: The left end of the first baffle (110) is farther away from the pole piece than the right end of the first baffle (110), the right end of the second baffle (120) is farther away from the pole piece than the left end of the second baffle (120), and the right end of the third baffle (130) is farther away from the pole piece than the left end of the third baffle (130).

3. The pole piece processing equipment according to claim 1, characterized in that The invention also includes: a fourth baffle (190), wherein the fourth baffle (190) is located between the third baffle (130) and the pole piece to form a third gas flow channel (210) between the fourth baffle (190) and the pole piece, wherein the outlet of the third gas flow channel (210) is adjacent to the inlet of the second gas flow channel (150) and is located on the right side of the inlet of the second gas flow channel (150).

4. The pole piece processing equipment according to claim 3, characterized in that Also includes: A second air blowing mechanism (220), wherein the second air blowing mechanism (220) is arranged at the entrance of the third gas flow channel (210).

5. The pole piece processing equipment according to claim 4, characterized in that: The second air blowing mechanism (220) comprises an air supply air knife.

6. The pole piece processing equipment according to claim 1, characterized in that Also includes: An adsorption mechanism (230), wherein the adsorption mechanism (230) is arranged below the pole piece.

7. The pole piece processing equipment according to claim 6, characterized in that: The adsorption mechanism (230) comprises a support plate (231) and a negative pressure unit (232), wherein the support plate (231) is used to support the pole piece, and the negative pressure unit (232) is used to adsorb the pole piece.

8. The pole piece processing equipment according to claim 1, characterized in that: The laser (180) includes a laser light source (181) and a diffractive optical element (182).

9. The pole piece processing equipment according to claim 1, characterized in that: The first air blowing mechanism (160) comprises a positive pressure air knife.

10. The pole piece processing equipment according to claim 1, characterized in that: The dust suction mechanism (170) comprises a negative pressure dust suction unit.

Images