Pole piece forming mold, pole piece forming device and pole piece forming system

Abstract

The utility model provides a pole piece forming mold, a pole piece forming device and a pole piece forming system. The pole piece forming mold comprises a titanium mesh assembly and a forming clamping plate, the titanium mesh assembly comprises a titanium mesh pole piece and a sealing piece, and the sealing piece is connected to the periphery of the titanium mesh pole piece in a wrapping mode. The number of the forming clamping plates is two, the titanium mesh assembly is clamped between the two forming clamping plates, and the two forming clamping plates elastically abut against the sealing piece, so that the forming clamping plates, the sealing piece and the titanium mesh pole piece jointly form a forming cavity; a grouting channel is formed in each forming clamping plate, and the grouting channels of the two forming clamping plates communicate with the two forming cavities correspondingly. Therefore, the uniformity of the coating layer is improved, the coating process of the pilot-scale large-size pole piece is simplified, and the coating efficiency of the pole piece is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of pole piece forming systems, and in particular to a pole piece forming mold, a pole piece forming device and a pole piece forming system. Background Art

[0002] Salt lake electro-deintercalation and lithium extraction technology belongs to the field of emerging technologies. Currently, it is mainly based on electro-deintercalation equipment in the form of electrode coating. In the method of electro-deintercalation and lithium extraction, both the anode and the cathode are in the form of titanium mesh electrodes coated with corresponding coatings; the preparation process of the electrode that can be used for electro-deintercalation and lithium extraction includes three processes: slurrying, coating, and drying. Iron phosphate or lithium iron phosphate is prepared into a slurry, which is then coated on the titanium mesh electrode. The electrode coated with a certain thickness can be used as the anode and cathode in the electro-deintercalation and lithium extraction membrane stack after being dried in an oven. The thickness of the electrode coating as well as the flatness and uniformity of the coating will affect the effect of lithium extraction, so the coating process is crucial.

[0003] However, the titanium mesh electrodes used in the current experiments are all manually coated. Since the coating speed and coating pressure of manual coating are difficult to control, the electrode coating is uneven. Since the viscosity, fluidity and other properties of the slurry have a great influence on the coating effect, the properties of the slurry need to be continuously adjusted to meet the coating requirements during the manual coating process. For pilot-scale large-scale electrodes, the properties of the slurry may be more complex and changeable, requiring more precise regulation, resulting in a cumbersome, time-consuming and labor-intensive manual coating process for pilot-scale large-scale electrodes. In addition, manual coating is less efficient, which is not conducive to subsequent mass production and application.

[0004] Therefore, the current manual coating has the following problems: 1. The electrode coating is uneven; 2. The manual coating process of pilot large-size electrodes is cumbersome; 3. The coating efficiency is low. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a pole piece forming mold, pole piece forming device and pole piece forming system that improve the uniformity of pole piece coating, simplify the manual coating process of pilot large-size pole pieces, and improve coating efficiency.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A pole piece forming die, comprising:

[0008] A titanium mesh assembly, comprising a titanium mesh pole piece and a sealing member, wherein the sealing member is connected to and covers the periphery of the titanium mesh pole piece; and

[0009] There are two forming splints, the titanium mesh assembly is clamped between the two forming splints, and the two forming splints are elastically abutted against the seals respectively, so that each forming splint, the seals and the titanium mesh pole piece together form a forming cavity; each forming splint is formed with a grouting channel, and the grouting channels of the two forming splints are respectively connected with the two forming cavities, and each forming splint is also formed with an exhaust channel, and the exhaust channel of each forming splint is connected with the corresponding forming cavity, and a sealing plug is provided in the exhaust channel of each forming splint.

[0010] In some embodiments, each of the forming splints is formed with a plurality of the grouting channels arranged in an array.

[0011] In some embodiments, the pole piece forming mold further includes a closing assembly, which is respectively connected to the two forming splints, and the closing assembly is used to push the two forming splints to close so that the two forming splints clamp the titanium mesh assembly.

[0012] In some embodiments, the closing component includes a fixing member and a pushing member, one end of the fixing member is fixedly connected to one of the forming splints, the fixing member is provided with a accommodating groove, the accommodating groove is used to accommodate the edge of each of the forming splints, the pushing member is threadedly connected to the other end of the fixing member, the pushing member is used to push the other forming splint, so that the closing component is used to clamp the two forming splints; a plurality of the closing components are respectively provided on the opposite sides of each of the forming splints.

[0013] A pole piece forming device comprises a fixing assembly and a pole piece forming die according to any one of the above embodiments, wherein the fixing assembly is used to fix the pole piece forming die.

[0014] In some embodiments, the fixing assembly includes:

[0015] frame;

[0016] A fixed splint, fixedly connected to the frame and abutting against one of the forming splints;

[0017] a movable splint abutting against another of the molded splints; and

[0018] The clamping member is connected to the frame and the movable clamping plate respectively, and is used to clamp the movable clamping plate and the fixed clamping plate.

[0019] In some embodiments, the pole piece forming mold further includes a closing assembly, wherein the closing assembly is respectively connected to the two forming splints, and the closing assembly is used to push the two forming splints to close so that the two forming splints clamp the titanium mesh assembly;

[0020] The fixed clamping plate is provided with a first positioning hole, the movable clamping plate is provided with a second positioning hole, and the closing assembly is respectively in contact with the inner wall of the first positioning hole and the inner wall of the second positioning hole.

[0021] A pole piece forming system for electric deintercalation and lithium extraction comprises a feeding device and the pole piece forming device described in any of the above embodiments, wherein the output end of the feeding device is connected to each of the grouting channels.

[0022] In some embodiments, the feeding device includes a stirring mechanism and a screw pump, the input end of the screw pump is connected to the output end of the stirring mechanism, and the output end of the screw pump is connected to each of the grouting channels.

[0023] In some embodiments, the feeding device further includes a cleaning tank, and the output end of the cleaning tank is connected to the inner cavity of the screw pump.

[0024] Compared with the prior art, the present disclosure has at least the following advantages:

[0025] Slurry is injected into each grouting channel at a relatively low grouting pressure. At this time, each exhaust channel is open, allowing the slurry to enter each molding cavity and allowing the air in each molding cavity to be discharged through the corresponding exhaust channel. When each molding cavity is filled with slurry, each sealing plug is sealed in the corresponding exhaust channel. Then, slurry is continued to be injected into each grouting channel at a relatively high grouting pressure to ensure the density of the slurry in each molding cavity, that is, to ensure the density of each coating layer. After continuing to inject slurry for a certain period of time, the grouting is stopped. After the slurry in the molding cavity solidifies, the two sides of the titanium mesh electrode are respectively connected to a coating layer. In this way, by injecting slurry into each molding cavity, the slurry can be coated on both sides of the titanium mesh electrode. Since the size of the molding cavity does not change during the coating process and is not affected by human factors, the uniformity of the coating layer is improved. When coating the pilot-scale large-scale electrode, the slurry also fills the molding cavity through the grouting channel, eliminating the need for manual regulation, simplifying the coating process of the pilot-scale large-scale electrode. Since manual coating is not required, the efficiency of electrode coating is improved, which is conducive to the subsequent mass production and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 This is a schematic structural diagram of a pole piece forming mold according to an embodiment;

[0028] Figure 2 for Figure 1 A schematic diagram of the partial structure of the pole piece forming mold shown;

[0029] Figure 3 Schematic diagram of the structure of a pole piece forming device according to one embodiment;

[0030] Figure 4 for Figure 3 The structure diagram of the pole piece forming device shown in another perspective;

[0031] Figure 5 Schematic diagram of the structure of a pole piece forming system according to one embodiment;

[0032] Figure 6 for Figure 5 The schematic structural diagram of the feeding device of the pole piece forming system is shown.

[0033] Figure numerals: 10, pole piece forming device; 100, pole piece forming mold; 110, titanium mesh assembly; 111, titanium mesh pole piece; 112, sealing member; 120, forming splint; 121, grouting channel; 122, exhaust channel; 1101, forming cavity; 130, closing assembly; 131, fixing member; 1311, accommodating groove; 132, pushing member; 140, sealing plug; 200, fixing assembly; 210, frame; 220, fixing splint; 221, first positioning hole; 230, movable splint; 231, second positioning hole; 240, clamping member; 20, feeding device; 300, stirring mechanism; 400, screw pump; 500, cleaning tank; 600, conveying mechanism. DETAILED DESCRIPTION

[0034] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0037] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0038] like Figures 1 to 3 As shown, a pole piece forming mold 100 of an embodiment includes a titanium mesh assembly 110 and a forming splint 120. The titanium mesh assembly 110 includes a titanium mesh pole piece 111 and a seal 112, and the seal 112 is covered and connected to the periphery of the titanium mesh pole piece 111. There are two forming splints 120, and the titanium mesh assembly 110 is clamped between the two forming splints 120. The two forming splints 120 are elastically abutted against the seal 112, so that each forming splint 120, the seal 112 and the titanium mesh pole piece 111 together form a forming cavity 1101, and further, a forming cavity 1101 is formed on both sides of the titanium mesh pole piece 111, that is, the pole piece forming mold 100 is formed with two forming cavities 1101. Each forming splint 120 is formed with a grouting channel 121, and the grouting channels 121 of the two forming splints 120 are respectively connected to the two forming cavities 1101. Each forming splint 120 is further formed with an exhaust channel 122 . The exhaust channel 122 of each forming splint 120 is communicated with the corresponding forming cavity 1101 . A sealing plug 140 is provided in the exhaust channel 122 of each forming splint 120 .

[0039] like Figures 1 to 3As shown, in this embodiment, when coating the electrode, the two forming clamps 120 are clamped on both sides of the titanium mesh assembly 110, so that the two forming clamps 120 are elastically abutted against the sealing member 112, thereby forming a forming cavity 1101 on both sides of the titanium mesh electrode 111, and then injecting slurry into each grouting channel 121 with a small grouting pressure. At this time, each exhaust channel 122 is in an open state, so that the slurry enters each forming cavity 1101 and the air in each forming cavity 1101 is discharged through the corresponding exhaust channel 122; when each forming When the mold cavity 1101 is filled with slurry, each sealing plug 140 is sealed in the corresponding exhaust channel 122, and then the slurry is continued to be injected into each grouting channel 121 with a larger grouting pressure to ensure the density of the slurry in each molding cavity 1101, that is, to ensure the density of each coating layer; after continuing to inject slurry for a certain period of time, the grouting is stopped, and after the slurry in the molding cavity 1101 is solidified, the two sides of the titanium mesh electrode 111 are respectively connected to a coating layer. At this time, each molding splint 120 is separated from the titanium mesh electrode 111 to separate the coated electrode.

[0040] It is understandable that the sealing member 112 may be a rubber member, a silicone member or other existing elastic sealing members 112 .

[0041] The above-mentioned pole piece forming mold 100 injects slurry into each grouting channel 121 with a relatively small grouting pressure. At this time, each exhaust channel 122 is in an open state, so that the slurry enters each forming cavity 1101 and the air in each forming cavity 1101 is discharged through the corresponding exhaust channel 122; when each forming cavity 1101 is full of slurry, each sealing plug 140 is sealed in the corresponding exhaust channel 122, and then the slurry is continued to be injected into each grouting channel 121 with a relatively large grouting pressure to ensure the density of the slurry in each forming cavity 1101, that is, to ensure the density of each coating layer; after continuing to inject slurry for a certain period of time, the grouting is stopped, and after the slurry in the forming cavity 1101 is solidified, the two sides of the titanium mesh pole piece 111 are respectively connected to a coating layer. In this way, by injecting slurry into each forming cavity 1101, the slurry can be coated on both sides of the titanium mesh electrode 111. Since the size of the forming cavity 1101 does not change during the coating process and is not affected by human factors, the uniformity of the coating layer is improved. When coating the pilot large-scale electrode, the slurry is also filled into the forming cavity 1101 through the grouting channel 121, without the need for manual regulation, which simplifies the coating process of the pilot large-scale electrode. Since there is no need for manual coating, the efficiency of the electrode coating is improved, which is conducive to the subsequent mass production and application.

[0042] like Figure 1As shown, in some embodiments, each forming splint 120 is formed with a plurality of grouting channels 121 arranged in an array. In this embodiment, since the forming splint 120 is formed with a plurality of grouting channels 121 arranged in an array, a relatively uniform flow distribution can be achieved, which not only improves the efficiency of grouting, but also makes the consistency of the compactness of the coating layer higher.

[0043] like Figure 1 As shown, in some embodiments, the pole piece forming mold 100 further includes a closing assembly 130, which is respectively connected to the two forming clamps 120. The closing assembly 130 is used to push the two forming clamps 120 to clamp together, so that the two forming clamps 120 clamp the titanium mesh assembly 110. In this embodiment, the closing assembly 130 enables the two forming clamps 120 to clamp the titanium mesh assembly 110, thereby ensuring the spatial stability of the forming cavity 1101 and preventing the slurry from flowing out of the forming cavity 1101.

[0044] like Figure 1 As shown, in some embodiments, the closing assembly 130 includes a fixing member 131 and a pushing member 132. One end of the fixing member 131 is fixedly connected to a forming splint 120. The fixing member 131 is provided with a receiving groove 1311. The receiving groove 1311 is used to accommodate the edge of each forming splint 120. The pushing member 132 is threadedly connected to the other end of the fixing member 131. The pushing member 132 is used to push the other forming splint 120, so that the closing assembly 130 is used to clamp the two forming splints 120. A plurality of closing assemblies 130 are respectively provided on the opposite sides of each forming splint 120. In this embodiment, the two forming splints 120 are closed by using a plurality of closing assemblies 130, which improves the uniformity of the force applied to the forming splints 120 and also improves the spatial stability of the forming cavity 1101.

[0045] like Figure 3 As shown, the present disclosure further provides a pole piece forming device 10, comprising a fixing assembly 200 and the pole piece forming mold 100 described in any of the above embodiments, wherein the fixing assembly 200 is used to fix the pole piece forming mold 100. In this embodiment, the pole piece forming mold 100 is fixed by the fixing assembly 200, so that the pole piece forming mold 100 is fixed at the grouting station to ensure the normal progress of the grouting operation.

[0046] like Figure 3As shown, in some embodiments, the fixing assembly 200 includes a frame 210, a fixed splint 220, a movable splint 230, and a clamping member 240. The fixed splint 220 is fixedly connected to the frame 210 and abuts against one forming splint 120, while the movable splint 230 abuts against the other forming splint 120. The clamping member 240 is connected to the frame 210 and the movable splint 230, respectively, and is used to clamp the movable splint 230 and the fixed splint 220. In this embodiment, the clamping member 240 pushes the movable splint 230 toward the fixed splint 220, so that both forming splints 120 are fixed to the fixing assembly 200, thereby ensuring the normal progress of the grouting operation.

[0047] like Figure 3 and Figure 4 As shown, in some embodiments, the pole piece forming mold 100 further includes a closing assembly 130, which is respectively connected to the two forming splints 120. The closing assembly 130 is used to push the two forming splints 120 together so that the two forming splints 120 clamp the titanium mesh assembly 110. The fixed splint 220 is provided with a first positioning hole 221, and the movable splint 230 is provided with a second positioning hole 231. The closing assembly 130 abuts against the inner wall of the first positioning hole 221 and the inner wall of the second positioning hole 231 respectively. In this embodiment, before the pole piece forming mold 100 is fixed to the fixed assembly 200, the closing assembly 130 is first positioned in the first positioning hole 221 and the second positioning hole 231, and then the clamping member 240 pushes the movable splint 230 toward the fixed splint 220, ensuring that the forming splint 120 is placed in the predetermined position, thereby ensuring that the fixed splint 220 and the movable splint 230 can clamp the forming splint 120.

[0048] like Figure 5 As shown, the present disclosure further provides a pole piece forming system, comprising a feeding device 20 and the pole piece forming device 10 described in any of the above embodiments, wherein the output end of the feeding device 20 is connected to each grouting channel 121 .

[0049] like Figure 6 As shown, in some embodiments, the feeding device 20 includes a stirring mechanism 300 and a screw pump 400, the input end of the screw pump 400 is connected to the output end of the stirring mechanism 300, and the output end of the screw pump 400 is connected to each grouting channel 121. In this embodiment, the stirring mechanism 300 is used to stir the slurry, and the stirred slurry is transported to the screw pump 400, which transports the slurry to each grouting channel 121, so that the slurry enters the molding cavity 1101 through the grouting channel 121. Since the stirring of the stirring mechanism 300 can reduce the viscosity of the slurry, and the screw pump 400 has a strong conveying capacity, the feeding device 20 can convey slurry with higher viscosity, thereby improving the adaptability of the feeding device 20.

[0050] like Figure 6 As shown, in some embodiments, the feeding device 20 further includes a cleaning tank 500, the output end of which is in communication with the inner cavity of the screw pump 400. In this embodiment, after the feeding device 20 has been conveying for a period of time, the stirring mechanism 300 and the screw pump 400 stop operating, and the cleaning tank 500 flushes the screw pump 400 to remove the slurry adhering to the screw pump 400.

[0051] It can be understood that the specific structures of the stirring mechanism 300, the screw pump 400 and the cleaning tank 500 are all existing technologies and are not described in detail in this disclosure.

[0052] like Figure 5 As shown, in some embodiments, the electrode sheet forming system for lithium electro-deintercalation further includes a conveying mechanism 600, which is used to convey the clamped forming clamping plate 120 and titanium mesh assembly 110 to the fixing assembly 200, thereby improving the electrode sheet forming efficiency. It is understood that the specific structure of the conveying mechanism 600 is prior art and is not described in detail in this disclosure.

[0053] like Figures 1 to 6As shown, in some embodiments, the working process of the electrode forming system for lithium electro-deintercalation and extraction is as follows: the stirring mechanism 300 continuously stirs the slurry, and the slurry is transported to the screw pump 400 after being stirred by the stirring mechanism 300. When coating the electrode, first, two forming splints 120 are respectively attached to both sides of the titanium mesh component 110 at the loading station, and then the two forming splints 120 are pushed and clamped by the closing component 130, so that the two forming splints 120 are elastically abutted against the seal 112 respectively, so that a forming cavity 1101 is formed on both sides of the titanium mesh electrode 111, and then the electrode forming mold 100 is transported to the fixing component 200 by the conveying mechanism 600, and then a forming splint 120 is clamped with the sealing component 112. The fixed splint 220 is fitted and the closing assembly 130 is positioned in the first positioning hole 221. Then the movable splint 230 is fitted to the other forming splint 120 and the closing assembly 130 is positioned in the second positioning hole 231. Then the clamping member 240 is used to push the movable splint 230 toward the fixed splint 220 so that the two pole piece forming molds 100 are fixed on the fixed assembly 200. Then the output end of the screw pump 400 is connected to each grouting channel 121. At this time, each The exhaust channel 122 is in an open state, and then the screw pump 400 is started to transport the slurry to each grouting channel 121 at a relatively small grouting pressure, so that the slurry enters each molding cavity 1101, and the air in each molding cavity 1101 is discharged through the corresponding exhaust channel 122; when each molding cavity 1101 is full of slurry, each sealing plug 140 is sealed in the corresponding exhaust channel 122, and then the screw pump 400 continues to pump the slurry to the corresponding grouting channel 121 at a relatively large grouting pressure. Slurry is injected into each grouting channel 121 to ensure the density of the slurry in each molding cavity 1101, that is, to ensure the density of each coating layer; after the screw pump 400 continues to convey for a certain period of time, the operation of the screw pump 400 is stopped, the clamping part 240 is loosened, and then the electrode forming mold 100 that has completed grouting is conveyed to the unloading station through the conveying mechanism 600. After the slurry in the molding cavity 1101 is formed, the closing assembly 130 is loosened, and then the coated electrode is taken out.

[0054] Compared with the prior art, the present disclosure has at least the following advantages:

[0055] Inject slurry into each grouting channel 121 with a relatively small grouting pressure. At this time, each exhaust channel 122 is in an open state, so that the slurry enters each molding cavity 1101 and the air in each molding cavity 1101 is discharged through the corresponding exhaust channel 122. When each molding cavity 1101 is full of slurry, each sealing plug 140 is sealed in the corresponding exhaust channel 122. Then, continue to inject slurry into each grouting channel 121 with a relatively large grouting pressure to ensure the density of the slurry in each molding cavity 1101, that is, to ensure the density of each coating layer. After continuing to inject slurry for a certain period of time, stop grouting. After the slurry in the molding cavity 1101 solidifies, the two sides of the titanium mesh electrode 111 are respectively connected to a coating layer. In this way, by injecting slurry into each molding cavity 1101, the slurry can be coated on both sides of the titanium mesh electrode 111. Since the size of the molding cavity 1101 will not change during the coating process and will not be affected by human factors, the uniformity of the coating layer is improved. When coating large-scale pilot-scale electrodes, the slurry is also filled into the molding cavity 1101 through the grouting channel 121, eliminating the need for manual control and simplifying the coating process for large-scale pilot-scale electrodes. This eliminates the need for manual coating, improving electrode coating efficiency and facilitating subsequent mass production applications.

[0056] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.

Claims

1. A pole piece forming die, characterized in that: include: A titanium mesh assembly (110) comprises a titanium mesh pole piece (111) and a sealing member (112), wherein the sealing member (112) covers and is connected to the periphery of the titanium mesh pole piece (111); as well as The forming splints (120) are two in number, the titanium mesh assembly (110) is clamped between the two forming splints (120), and the two forming splints (120) are elastically abutted against the sealing member (112) respectively, so that each forming splint (120), the sealing member (112) and the titanium mesh pole piece (111) jointly form a forming cavity (1101); each forming splint (120) is formed with A grouting channel (121) is provided, wherein the grouting channels (121) of the two forming splints (120) are respectively connected to the two forming cavities (1101); each forming splint (120) is further provided with an exhaust channel (122); the exhaust channel (122) of each forming splint (120) is connected to the corresponding forming cavity (1101); and a sealing plug (140) is provided in the exhaust channel (122) of each forming splint (120).

2. The pole piece forming mold according to claim 1, characterized in that: Each of the forming clamping plates (120) is formed with a plurality of grouting channels (121) arranged in an array.

3. The pole piece forming mold according to claim 1, characterized in that: The pole piece forming mold (100) further includes a closing assembly (130), wherein the closing assembly (130) is respectively connected to the two forming clamps (120), and the closing assembly (130) is used to push the two forming clamps (120) to close together, so that the two forming clamps (120) clamp the titanium mesh assembly (110).

4. The pole piece forming mold according to claim 3, characterized in that: The closing assembly (130) includes a fixing member (131) and a pushing member (132), one end of the fixing member (131) is fixedly connected to one of the forming splints (120), the fixing member (131) is provided with a receiving groove (1311), the receiving groove (1311) is used to receive the edge of each of the forming splints (120), the pushing member (132) is threadedly connected to the other end of the fixing member (131), the pushing member (132) is used to push the other of the forming splints (120), so that the closing assembly (130) is used to clamp the two forming splints (120); a plurality of closing assemblies (130) are respectively provided on the opposite sides of each of the forming splints (120).

5. A pole piece forming device, characterized in that: The invention comprises a pole piece forming mold (100) according to any one of claims 1 to 4, wherein the pole piece forming mold (100) further comprises a fixing assembly (200), and the fixing assembly (200) is used to fix the pole piece forming mold (100).

6. The pole piece forming device according to claim 5, characterized in that: The fixing assembly (200) comprises: Rack (210); A fixed clamping plate (220) fixedly connected to the frame (210) and abutting against one of the forming clamping plates (120); A movable splint (230) abuts against the other forming splint (120); and The clamping member (240) is connected to the frame (210) and the movable clamping plate (230) respectively, and is used to clamp the movable clamping plate (230) and the fixed clamping plate (220).

7. The pole piece forming device according to claim 6, characterized in that: The pole piece forming mold (100) further includes a closing assembly (130), wherein the closing assembly (130) is respectively connected to the two forming clamps (120), and the closing assembly (130) is used to push the two forming clamps (120) to close together, so that the two forming clamps (120) clamp the titanium mesh assembly (110); The fixed clamp (220) is provided with a first positioning hole (221), the movable clamp (230) is provided with a second positioning hole (231), and the closing assembly (130) abuts against the inner wall of the first positioning hole (221) and the inner wall of the second positioning hole (231), respectively.

8. A pole piece forming system, characterized in that: It comprises a feeding device (20) and a pole piece forming device (10) according to any one of claims 5 to 7, wherein the output end of the feeding device (20) is connected to each of the grouting channels (121).

9. The pole piece forming system according to claim 8, characterized in that: The feeding device (20) comprises a stirring mechanism (300) and a screw pump (400), wherein the input end of the screw pump (400) is connected to the output end of the stirring mechanism (300), and the output end of the screw pump (400) is connected to each of the grouting channels (121).

10. The pole piece forming system according to claim 9, characterized in that: The feeding device (20) further comprises a cleaning tank (500), and the output end of the cleaning tank (500) is communicated with the inner cavity of the screw pump (400).

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