Membrane electrode assembly preparation device of flow battery

By employing an inward-expanding guide groove and a servo motor-driven coating assembly in the membrane electrode preparation device, the problem of uneven coating of the membrane electrode was solved, achieving uniform distribution and coating of raw materials and improving the performance of the membrane electrode.

CN223918443UActive Publication Date: 2026-02-17ANHUI TANRUN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520266669.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-19
Publication Date
2026-02-17
Estimated Expiration
2035-02-19

AI Technical Summary

Technical Problem

In existing membrane electrode preparation methods, coating electrochemical active materials can easily result in a thicker center and thinner edges, leading to uneven coating and affecting the performance.

Method used

The design employs an inward-expanding guide groove, and the coating components run along the guide groove trajectory. Combined with a servo motor-driven screw that drives the slide plate and piston cylinder, the material is evenly distributed and conveyed, preventing the phenomenon of being thicker in the middle and thinner at the sides.

Benefits of technology

This achieves uniform coating of raw materials for membrane electrode assemblies, avoiding the problem of being thicker in the middle and thinner at the edges, and improving the performance of membrane electrodes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a preparation device for a membrane electrode assembly of a flow battery, and relates to the technical field of flow battery production. The device comprises a preparation table, a plurality of forming grooves and a C-shaped plate, a guide groove penetrates through the surface of the C-shaped plate; a coating assembly is slidably arranged on the inner wall of the guide groove. The coating assembly comprises a sliding block; fixing plates are fixed to the surfaces of the sliding blocks. Mounting rings are fixed on the surfaces of the fixing plates; a feeding pipe is fixed on the inner wall of the mounting ring; a connecting pipe is fixed at one end of the feeding pipe; a plurality of shunt pipes uniformly penetrate through and are fixed on the peripheral side surface of the connecting pipe; and a plurality of coating pipes uniformly penetrate through and are fixed on the peripheral side surface of the shunting pipe. The guide groove expanding from inside to outside is arranged, and the coating assembly is driven to move along the track of the guide groove, so that the coating pipe moves outwards in a circling and expanding mode from the position over the forming groove, raw materials are conveyed into the forming groove from inside to outside, the raw materials are evenly distributed in the forming groove, and the phenomenon that the middle is thick and the two sides are thin is avoided.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the production technical field of liquid flow battery, especially relates to a membrane electrode assembly preparation device of liquid flow battery. BACKGROUND

[0002] Liquid flow battery is a new type of battery technology, its working principle is through the injection of two different electrolyte liquids in two batteries respectively, then through electrode separates two electrolyte liquids respectively, forms electrochemical reaction, thereby generates electric energy. Liquid flow battery usually uses membrane electrode assembly in the process of production, its function is to separate two electrolyte liquids, simultaneously makes electron can transmit between two electrolyte liquids, thereby forms electric current.

[0003] At present, the preparation method of membrane electrode mainly includes template method and surface modification method. Template method is through selecting suitable template material, such as polycarbonate film or silicon film, after treating template, electrochemical active material solution is coated on the template surface, after drying, the template is stripped, and the required membrane electrode is obtained, however, the existing template method when coating electrochemical active material, liquid is squeezed from the middle of the template, and the liquid is self-leveling from the middle to the four corners, and the coating is uneven, causing the middle of the template after drying and solidification to be thick and the two sides to be thin, which affects its use.

[0004] Therefore, we provide a membrane electrode assembly preparation device of liquid flow battery to solve the problems in the above. UTILITY MODEL CONTENTS

[0005] The utility model discloses a membrane electrode assembly preparation device of liquid flow battery, through setting by inside to outside expansion guide groove, and drive coating assembly runs along the track of guide groove, make coating pipe from the outside of the forming groove circle expansion movement, transport raw materials from inside to outside in the forming groove, make raw materials evenly distribute in the inside of forming groove, prevent the phenomenon of thick in the middle and thin on both sides, solve the problem that the existing template method when coating electrochemical active material, liquid is squeezed from the middle of the template, and the liquid is self-leveling from the middle to the four corners, and the coating is uneven, causing the middle of the template after drying and solidification to be thick and the two sides to be thin, which affects its use.

[0006] To solve the above technical problems, the utility model is through the following technical scheme realizes: the utility model discloses a kind of membrane electrode assembly preparation devices of liquid flow battery, including preparation table;Several forming grooves are evenly provided with on the preparation table surface linear array distribution;C-shaped plate is fixed on the preparation table side face;Guiding groove is passed through and is arranged on the surface of C-shaped plate;Coating assembly is slidably arranged on the inner wall of guiding groove;The slider of the coating assembly includes slidingly arranged in the inner wall of guiding groove;Fixed plate is fixed on the surface of slider;Mounting ring is fixed on the surface of fixed plate;Feeding pipe is fixed on the inner wall of mounting ring;One end of feeding pipe is fixed with connecting pipe;Several shunt pipes are fixed and passed through on the side face of connecting pipe linear array distribution evenly;Several coating pipes are fixed and passed through on the side face of shunt pipe linear array distribution evenly.

[0007] The utility model further sets up, slider bottom surface is fixed with fixed shaft;C-shaped plate inner wall is fixed with mounting plate;Mounting plate surface is passed through and is rotatably arranged with screw rod;The top of screw rod is fixed with rotating plate;Rotating plate surface is provided with the sliding groove of sliding cooperation with fixed shaft.

[0008] The utility model further sets up, C-shaped plate side face is fixed with U-shaped shaft;Arc-shaped plate is fixed on the end of U-shaped shaft;Piston cylinder is fixed on the inner wall of arc-shaped plate;Piston plate is slidably arranged on the inner wall of piston cylinder;Piston rod is fixed on the surface of piston plate and is slidably arranged with piston cylinder inner top surface.

[0009] The utility model further sets up, piston rod top is fixed with Z-shaped shaft;Z-shaped shaft end is fixed with the sliding plate of screw rod penetration thread rotation cooperation;C-shaped plate inner bottom is fixed with servo motor;The output end of servo motor is fixedly connected with the bottom end of screw rod.

[0010] The utility model further sets up, and piston cylinder bottom end is passed through and is fixed with suction pipe, and its surface is passed through and is fixed with discharge pipe;Discharge pipe is communicated with feeding pipe;Suction pipe, discharge pipe and piston plate are all provided with check valve.

[0011] The utility model further sets up, and shunt pipe is provided with air-drying assembly;Air-drying assembly includes main pipe;The side face of main pipe is evenly fixed and passed through with several branch pipes linear array distribution;The side face of branch pipe is evenly fixed and passed through with several air pipes linear array distribution;L-shaped pipe is fixed and passed through on the side face of main pipe.

[0012] The utility model further sets up, and the bottom of air pipe is fixed with several blow head;Two the side face of shunt pipe is fixed with first fixed ring;The side face of main pipe is fixed with two second fixed rings;Adjacent two first fixed ring and second fixed ring are fixed with connecting shaft.

[0013] The utility model has the following beneficial effects: 1, the utility model discloses the guiding groove of inside to outside expansion is set up to drive coating assembly to run along the track of guiding groove, makes coating pipe from the circle expansion movement of the top of forming groove, transports raw materials from inside to outside in the inside of forming groove, makes raw materials evenly distribute in the inside of forming groove, prevents the phenomenon of thick in the middle and thin on both sides.

[0014] 2, the utility model discloses the reciprocating movement of slide down is driven by rotating screw rod, realizes that piston cylinder will raw materials draw into inside and will raw materials be transported to the inside of feeding pipe in turn through discharge pipe, realizes that coating assembly coats raw materials and piston cylinder transports raw materials with the same driving force synchronous operation.

[0015] Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described above at the same time. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to these drawings.

[0017] Figure 1 It is a kind of membrane electrode assembly preparation device for the structure schematic diagram of liquid flow battery.

[0018] Figure 2 It is the structure schematic diagram of coating assembly and air-drying assembly assembly of the utility model.

[0019] Figure 3 It is the structure schematic diagram of coating assembly of the utility model.

[0020] Figure 4 It is the structure schematic diagram of air-drying assembly of the utility model.

[0021] Figure 5 It is the structure schematic diagram of the utility model Figure 1 Partial sectional view.

[0022] Figure 6 It is another view structure schematic diagram of the utility model Figure 5 .

[0023] Figure 7 It is the structure schematic diagram of guiding groove of the utility model.

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1, preparation table; 2, forming groove; 3, C-shaped plate; 4, guide groove; 5, coating assembly; 6, sliding block; 7, fixed plate; 8, mounting ring; 9, feed pipe; 10, connecting pipe; 11, shunt pipe; 12, coating pipe; 13, fixed shaft; 14, mounting plate; 15, screw rod; 16, rotating plate; 17, sliding groove; 18, U-shaped shaft; 19, arc-shaped plate; 20, piston cylinder; 21, piston plate; 22, piston rod; 23, Z-shaped shaft; 24, sliding plate; 25, servo motor; 26, suction pipe; 27, discharge pipe; 28, air drying assembly; 29, main pipe; 30, branch pipe; 31, air pipe; 32, L-shaped pipe; 33, air blowing head; 34, first fixed ring; 35, second fixed ring; 36, connecting shaft. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0027] Specific embodiment one, please refer to Figures 1-7 The utility model discloses a kind of membrane electrode assembly preparation devices of liquid flow battery, including preparation table 1;Preparation table 1 surface is evenly provided with several forming grooves 2 in linear array distribution;Preparation table 1 side is fixed with C-shaped plate 3;C-shaped plate 3 surface is fixed with guide groove 4;Coating assembly 5 is slidably arranged in the inner wall of guide groove 4;Coating assembly 5 includes sliding block 6 arranged in the inner wall of guide groove 4;Fixed plate 7 is fixed on the surface of sliding block 6;Mounting ring 8 is fixed on the surface of fixed plate 7;Feed pipe 9 is fixed on the inner wall of mounting ring 8;One end of feed pipe 9 is fixed with connecting pipe 10;Connecting pipe 10 is fixed with several shunt pipes 11 in linear array distribution on the side;Several coating pipes 12 are fixed in linear array distribution on the side of shunt pipe 11.

[0028] Specifically, fixed shaft 13 is fixed on the bottom surface of sliding block 6;C-shaped plate 3 inner wall is fixed with mounting plate 14;Mounting plate 14 surface is rotatably provided with screw rod 15;Rotating plate 16 is fixed on the top end of screw rod 15;Sliding groove 17 is formed on the surface of rotating plate 16, and sliding groove 17 is slidably matched with fixed shaft 13.

[0029] The operation process of the embodiment is as follows: the guide groove 4 is shaped like a vortex line, the number of the coating pipe 12 is the same as that of the forming groove 2, and the coating pipe 12 and the forming groove 2 form a group one by one, in the initial state, the coating pipe 12 is located directly above the corresponding forming groove 2, and at this time, the sliding block 6 is located at the innermost end of the vortex line.

[0030] Then rotate the screw 15 drive rotating plate 16 and its sliding groove 17 rotating, and then drive the fixed shaft 13 rotating, and then drive the sliding block 6 along the guide groove 4 inner wall to the outer ring sliding, and then drive the fixed plate 7 and the installation ring 8 to move, and then drive the feed pipe 9, connecting pipe 10 and shunt pipe 11 to move, and then drive the coating pipe 12 above the forming groove 2, with the same track as the guide groove 4 for route, to the outermost end of the guide groove 4, the raw material is transported to the forming groove 2, so that the raw material from the forming groove 2 above slowly to the four around coating, so that the raw material evenly distributed in the forming groove 2 inside.

[0031] In this embodiment, by setting the guide groove 4 expanding from inside to outside, and driving the coating assembly 5 along the track of the guide groove 4, so that the coating pipe 12 from the forming groove 2 above to the outside of the expanding movement, the raw material to the forming groove 2 inside from inside to outside, so that the raw material evenly distributed in the forming groove 2 inside, prevent the phenomenon of thick in the middle and thin on both sides.

[0032] Specific embodiment two, please refer to Figures 1-7 On the basis of the first embodiment, the C-shaped plate 3 side is fixed with U-shaped shaft 18; the end of U-shaped shaft 18 is fixed with arc plate 19; the inner wall of arc plate 19 is fixed with piston cylinder 20; the inner wall of piston cylinder 20 is slidably provided with piston plate 21; the surface of piston plate 21 is fixed with piston rod 22 which penetrates and slidably cooperates with the inner top surface of piston cylinder 20.

[0033] Specifically, the top end of piston rod 22 is fixed with Z-shaped shaft 23; the end of Z-shaped shaft 23 is fixed with sliding plate 24 which penetrates and threadedly rotates with screw 15; the inner bottom surface of C-shaped plate 3 is fixed with servo motor 25; the output end of servo motor 25 is fixedly connected with the bottom end of screw 15.

[0034] Further, the bottom end of piston cylinder 20 is fixedly provided with suction pipe 26 which penetrates the surface, and the surface is fixedly provided with discharge pipe 27; the discharge pipe 27 is communicated with the feed pipe 9; the suction pipe 26, the discharge pipe 27 and the piston plate 21 are all provided with one-way valve.

[0035] The operation process of this embodiment is: the suction pipe 26 is connected with the storage barrel, the storage barrel is filled with raw materials, in the initial state, the coating pipe 12 is located above the corresponding forming groove 2, at this time the sliding block 6 is located at the innermost end of the vortex line, the piston plate 21 is located at the bottom of the piston cylinder 20, and the piston cylinder 20 stores raw materials.

[0036] The one-way valve makes the raw materials only enter the cavity of the piston cylinder 20 below the piston plate 21 from the suction pipe 26, the raw materials in the cavity of the piston cylinder 20 below the piston plate 21 can only pass through the piston plate 21 to enter the cavity of the piston cylinder 20 above the piston plate 21, and the raw materials in the cavity of the piston cylinder 20 above the piston plate 21 can only be transported to the feed pipe 9 through the discharge pipe 27.

[0037] Then the servo motor 25 is started to drive the lead screw 15 to rotate, and through a series of linkage to drive the coating pipe 12 to uniformly distribute the raw materials inside the forming groove 2. At the same time, the lead screw 15 drives the sliding plate 24 to move upwards, and then drives the Z-shaped shaft 23 and the piston rod 22 to move upwards, and then drives the piston plate 21 to move upwards, so as to transport the raw materials in the piston cylinder 20 to the feeding pipe 9 through the discharge pipe 27. The raw materials pass through the connecting pipe 10, the shunt pipe 11 and the coating pipe 12 and fall into the forming groove 2. In this process, the piston plate 21 moves upwards, and at the same time, the raw materials are extracted from the inside of the storage barrel to the cavity below the piston plate 21 in the piston cylinder 20 through the suction pipe 26. After the raw materials are dried and solidified, they can be taken out.

[0038] Then the lead screw 15 is driven to reverse, and the sliding plate 24 is driven to move downwards, and then the Z-shaped shaft 23 and the piston rod 22 are driven to move downwards, and then the piston plate 21 is driven to move downwards, so as to extrude the raw materials in the cavity below the piston plate 21 in the piston cylinder 20 into the cavity above the piston plate 21 in the piston cylinder 20, and at the same time, the coating assembly 5 is driven to move from the outermost end of the guide groove 4 to the innermost end, so as to make the next round of film electrode.

[0039] In this embodiment, the sliding plate 24 is moved up and down by rotating the lead screw 15, so that the piston cylinder 20 sequentially extracts the raw materials into the inside and transports the raw materials to the inside of the feeding pipe 9 through the discharge pipe 27, and the coating assembly 5 and the piston cylinder 20 are driven by the same driving force to synchronize the coating of the raw materials and the transportation of the raw materials.

[0040] Specific embodiment three, please refer to Figures 1-7 On the basis of the specific embodiment one and the specific embodiment two, the shunt pipe 11 is provided with a air-drying assembly 28; the air-drying assembly 28 comprises a main pipe 29; the main pipe 29 is fixed with a plurality of branch pipes 30 which are linearly and evenly distributed on the side surface; the branch pipes 30 are fixed with a plurality of air pipes 31 which are linearly and evenly distributed on the side surface; the main pipe 29 is fixed with an L-shaped pipe 32.

[0041] Specifically, the air pipe 31 is fixed with a plurality of air blowing heads 33 at the bottom end; the two shunt pipes 11 are fixed with a first fixed ring 34 on the side surface; the main pipe 29 is fixed with two second fixed rings 35 on the side surface; the adjacent two first fixed rings 34 and the second fixed rings 35 are fixed with a connecting shaft 36.

[0042] The operation process of the embodiment is as follows: the L-shaped pipe 32 is connected with the fan, after the coating assembly 5 moves from the innermost end to the outermost end of the guide groove 4, the coating assembly 5 also drives the air-drying assembly 28 to move, so that the blowing head 33 is located directly above the forming groove 2, the raw materials are uniformly laid in the forming groove 2, then the fan is started to rotate slowly, and the air of the fan is transported to the main pipe 29 through the L-shaped pipe 32, and then transported to the blowing head 33 through the branch pipe 30 and the air pipe 31, the blowing head 33 blows the air on the surface of the raw materials, so as to accelerate the solidification of the raw materials.

[0043] In the description of the present specification, the description referring to the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the present application disclosed above are only used to help explain the present application. The preferred embodiments do not describe all the details, nor limit the present application to the specific embodiments described. Obviously, according to the content of the present specification, many modifications and changes can be made. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present application, so that the persons skilled in the art can well understand and utilize the present application. The present application is limited by the claims and the entire scope and equivalents thereof.

Claims

1. A membrane electrode assembly preparation device of a flow battery, comprising a preparation table (1); the surface of the preparation table (1) is uniformly provided with a plurality of forming grooves (2) in linear array distribution; characterized in that: the side surface of the preparation table (1) is fixed with a C-shaped plate (3); the surface of the C-shaped plate (3) is through-provided with a guide groove (4); the inner wall of the guide groove (4) is slidably provided with a coating assembly (5); the coating assembly (5) comprises a sliding block (6) slidably arranged on the inner wall of the guide groove (4); the surface of the sliding block (6) is fixed with a fixed plate (7); the surface of the fixed plate (7) is fixed with a mounting ring (8); the inner wall of the mounting ring (8) is fixed with a feeding pipe (9); one end of the feeding pipe (9) is fixed with a connecting pipe (10); the peripheral side surface of the connecting pipe (10) is uniformly through-fixed with a plurality of shunt pipes (11) in linear array distribution; the peripheral side surface of the shunt pipe (11) is uniformly through-fixed with a plurality of coating pipes (12) in linear array distribution.

2. The apparatus of claim 1, wherein, the bottom surface of the sliding block (6) is fixed with a fixed shaft (13); the inner wall of the C-shaped plate (3) is fixed with a mounting plate (14); the surface of the mounting plate (14) is through-rotatably provided with a lead screw (15); the top end of the lead screw (15) is fixed with a rotating plate (16); the surface of the rotating plate (16) is provided with a sliding groove (17) slidably matched with the fixed shaft (13).

3. The apparatus of claim 2, wherein the apparatus is configured to produce a membrane electrode assembly for a flow battery, and wherein the apparatus is configured to produce the membrane electrode assembly by: the side surface of the C-shaped plate (3) is fixed with a U-shaped shaft (18); the end of the U-shaped shaft (18) is fixed with an arc-shaped plate (19); the inner wall of the arc-shaped plate (19) is fixed with a piston cylinder (20); the inner wall of the piston cylinder (20) is slidably provided with a piston plate (21); the surface of the piston plate (21) is fixed with a piston rod (22) through-slidably matched with the inner top surface of the piston cylinder (20).

4. The device for preparing a membrane-electrode assembly of a flow battery according to claim 3, characterized in that the top end of the piston rod (22) is fixed with a Z-shaped shaft (23); the end of the Z-shaped shaft (23) is fixed with a sliding plate (24) through-threadedly rotatably matched with the lead screw (15); the inner bottom surface of the C-shaped plate (3) is fixed with a servo motor (25); the output end of the servo motor (25) is fixedly connected with the bottom end of the lead screw (15).

5. The apparatus of claim 4, wherein the apparatus is configured to produce a membrane electrode assembly for a flow battery. the bottom end of the piston cylinder (20) is through-fixed with a suction pipe (26), and the surface thereof is through-fixed with a discharge pipe (27); the discharge pipe (27) is communicated with the feeding pipe (9); the suction pipe (26), the discharge pipe (27) and the piston plate (21) are all provided with a one-way valve.

6. The device for preparing a membrane-electrode assembly of a flow battery according to claim 5, characterized in that the shunt pipe (11) is provided with an air drying assembly (28); the air drying assembly (28) comprises a main pipe (29); the peripheral side surface of the main pipe (29) is uniformly through-fixed with a plurality of branch pipes (30) in linear array distribution; the peripheral side surface of the branch pipe (30) is uniformly through-fixed with a plurality of air pipes (31) in linear array distribution; the peripheral side surface of the main pipe (29) is through-fixed with an L-shaped pipe (32).

7. The device for preparing a membrane-electrode assembly of a flow battery according to claim 6, characterized in that The air pipe (31) is fixed with several blowing heads (33) at the bottom end; the two shunt pipes (11) are fixed with first fixing rings (34) on the side surface; the main pipe (29) is fixed with two second fixing rings (35) on the side surface; the adjacent two first fixing rings (34) and second fixing rings (35) are fixed with connecting shafts (36).