Elastic stabilization device and method for membrane electrode assembly

Abstract

The present invention discloses an elastic stabilization device for a membrane electrode assembly and a method thereof, the device comprising: an upper pressing plate and a lower pressing plate, the upper pressing plate and the lower pressing plate are arranged parallel and spaced apart in the up and down directions, and the upper pressing plate is located directly above the lower pressing plate; a plurality of roller assemblies, the plurality of roller assemblies comprising two groups, namely a first roller assembly and a second roller assembly, the first roller assembly is arranged on the upper pressing plate, and the second roller assembly is supported on the lower pressing plate, the first roller assembly and the second roller assembly are arranged spaced apart in the up and down directions, the first roller assembly and the second roller assembly are arranged one by one, and the first roller assembly and the second roller assembly cooperate with each other to perform pressure-maintaining treatment on at least one membrane electrode assembly. According to the elastic stabilization device for a membrane electrode assembly according to an embodiment of the present invention, the membrane electrode assembly is rolled and compacted using two rows of roller assemblies, which has a good pressure-maintaining effect on the membrane electrode assembly and effectively avoids air leakage in the membrane electrode assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cells, in particular to an electrochemical cell, and in particular to an elastic stabilization device and method for a membrane electrode assembly. Background Art

[0002] Before the actual fuel cell assembly, the membrane electrode assembly needs to be elastically stabilized to eliminate the elastic deformation of the gas diffusion layer (GDL) in the membrane electrode assembly and ensure that the stack has plastic deformation during the assembly and tightening process. However, the actual stacking force is insufficient, which can easily lead to gas leakage, and even explosion in severe cases.

[0003] In the related art, before stacking the membrane electrode assembly, a servo press can be used to perform pressure-maintaining treatment on the membrane electrode assembly for a period of time to eliminate the elastic deformation of the membrane electrode assembly. However, due to the different roughness and parallelism of the upper and lower pressure heads of the servo press, and the long pressure-maintaining time, the membrane electrode assembly may leak. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0005] To this end, the present invention proposes an elastic stabilization device for a membrane electrode assembly. The elastic stabilization device for the membrane electrode assembly has a good pressure-maintaining effect and can effectively prevent air leakage from occurring in the membrane electrode assembly.

[0006] The present invention also provides a method for elastically stabilizing a membrane electrode assembly according to the elastically stabilizing device for the membrane electrode assembly.

[0007] According to the first aspect of the present invention, an elastic stabilization device for a membrane electrode assembly comprises: an upper pressure plate and a lower pressure plate, wherein the upper pressure plate and the lower pressure plate are arranged parallel and spaced apart in the up and down directions, and the upper pressure plate is located directly above the lower pressure plate; a plurality of roller assemblies, wherein the plurality of roller assemblies comprise two groups, namely a first roller assembly and a second roller assembly, wherein the first roller assembly is arranged on the upper pressure plate, and the second roller assembly is supported on the lower pressure plate, and the first roller assembly and the second roller assembly are arranged spaced apart in the up and down directions, the first roller assembly comprises a plurality of roller assemblies spaced apart along the left and right directions on the upper pressure plate, the second roller assembly comprises a plurality of roller assemblies spaced apart along the left and right directions on the lower pressure plate, the first roller assembly and the second roller assembly are arranged one by one, and the first roller assembly and the second roller assembly cooperate with each other to perform pressure-maintaining treatment on at least one membrane electrode assembly.

[0008] According to the elastic stabilization device for the membrane electrode assembly of the embodiment of the present invention, the membrane electrode assembly is rolled and compacted by using upper and lower rows of roller assemblies, which has a good pressure-maintaining effect on the membrane electrode assembly and effectively avoids air leakage in the membrane electrode assembly.

[0009] According to one embodiment of the present invention, each of the first roller assemblies and each of the second roller assemblies comprises: a support rod and a roller, the support rod of the first roller assembly being connected between the upper pressure plate and the roller, and the support rod of the second roller assembly being connected between the lower pressure plate and the roller.

[0010] According to an optional example of the present invention, the support rod of the first roller assembly is vertically fixed on the upper pressing plate, and the support rod of the second roller assembly is vertically fixed on the lower pressing plate.

[0011] According to another optional example of the present invention, in the left-right direction, with a specific roller assembly in the middle of the multiple first roller assemblies as the boundary, the lengths of the support rods of the multiple first roller assemblies located on the left side of the specific roller assembly are all the same, and the lengths of the support rods of the multiple first roller assemblies located on the right side of the specific roller assembly gradually decrease from left to right.

[0012] According to yet another optional example of the present invention, the lengths of the support rods of the plurality of second roller assemblies are all the same.

[0013] According to another embodiment of the present invention, the elastic stabilization device for the membrane electrode assembly also includes: a first conveyor belt and a second conveyor belt, the first conveyor belt is wrapped around the rollers of the multiple first roller assemblies, and the second conveyor belt is wrapped around the rollers of the multiple second roller assemblies.

[0014] Furthermore, the right side distance between the first conveyor belt and the second conveyor belt in the up and down direction is determined according to the product of the number of membrane electrode assemblies on the second conveyor belt and the total thickness of the membrane electrode assembly on the second conveyor belt, and the left side distance between the first conveyor belt and the second conveyor belt in the up and down direction is the product of the number of membrane electrode assemblies and the theoretical compressed thickness of the membrane electrode assembly on the second conveyor belt.

[0015] According to another optional example of the present invention, the leftmost roller and the rightmost roller of the plurality of second roller assemblies are respectively connected to a first motor for driving the leftmost roller and the rightmost roller to rotate.

[0016] According to another embodiment of the present invention, the elastic stabilization device for the membrane electrode assembly further includes: a servo press, wherein the servo press and the upper pressing plate are connected via a pressing rod to drive the upper pressing plate to press downward.

[0017] According to the elastic stabilization method of the membrane electrode assembly of the second embodiment of the present invention, the membrane electrode assembly is subjected to pressure maintenance treatment according to the elastic stabilization device for the membrane electrode assembly described in the above embodiment, and the method comprises the following specific steps:

[0018] S1, transporting one or more membrane electrode assemblies from the right side of the elastic stabilization device to the second conveyor belt;

[0019] S2, the second conveyor belt conveys the membrane electrode assembly from right to left at a certain speed. During the movement of the membrane electrode assembly, a position sensor based on the first conveyor belt monitors the vertical distance between the top membrane electrode assembly and the first conveyor belt. When the vertical distance is too large, the servo press moves downward;

[0020] S3, when the uppermost membrane electrode assembly contacts the second conveyor belt, the pressure is slowly increased by the servo press, and when the entire membrane electrode assembly enters the left side of the specific first roller assembly, the upper pressing plate and the lower pressing plate cooperate to perform pressure-maintaining treatment on the membrane electrode assembly;

[0021] S4, simultaneously giving the roller of the first roller assembly and the roller of the second roller assembly a certain frequency of vibration to heat the roller of the first roller assembly and the roller of the second roller assembly;

[0022] S5, simultaneously, the next batch of the membrane electrode assemblies is placed onto the second conveyor belt from the right side of the elastic stabilization device;

[0023] S6. Continue to start a new round of elastic stabilization process, and repeat the above steps in a cycle.

[0024] According to the elastic stabilization method of the membrane electrode assembly of the embodiment of the present invention, the membrane electrode assembly is rolled and compacted by using upper and lower rows of roller assemblies, which has a good pressure-maintaining effect on the membrane electrode assembly and effectively avoids air leakage in the membrane electrode assembly.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0027] Figure 1 is a schematic structural diagram of an elastic stabilization device for a membrane electrode assembly according to an embodiment of the present invention;

[0028] Figure 2 is a schematic diagram of conveying a membrane electrode assembly using an elastic stabilization device for a membrane electrode assembly according to an embodiment of the present invention;

[0029] Figure 3 4 is a flow chart of a method for elastic stabilization of a membrane electrode assembly according to an embodiment of the present invention.

[0030] Reference numerals:

[0031] Elastic stabilization device 100, membrane electrode assembly 200,

[0032] The upper pressing plate 10 , the lower pressing plate 20 , the first roller assembly 30 , the specific roller assembly 31 , the second roller assembly 40 , the support rod 41 , the roller 42 , the first conveyor belt 43 , the second conveyor belt 44 , the servo press 50 , and the pressing rod 60 . DETAILED DESCRIPTION

[0033] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0034] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] Reference below Figure 1-Figure 3 An elastic stabilization device 100 for a membrane electrode assembly 200 according to an embodiment of a first aspect of the present invention is described.

[0036] like Figure 1 and Figure 2 As shown, the elastic stabilization device 100 for the membrane electrode assembly 200 according to an embodiment of the present invention includes: an upper pressing plate 10, a lower pressing plate 20 and a plurality of roller assemblies.

[0037] Specifically, the upper pressing plate 10 and the lower pressing plate 20 are arranged parallel and spaced apart in the vertical direction (eg, Figure 1 As shown, the upper pressing plate 10 and the lower pressing plate 20 are arranged opposite to each other up and down, and the upper pressing plate 10 is located directly above the lower pressing plate 20.

[0038] The plurality of roller assemblies include two groups, namely a first roller assembly 30 and a second roller assembly 40. The first roller assembly 30 is disposed on the upper pressing plate 10, and the second roller assembly 40 is supported on the lower pressing plate 20. The first roller assembly 30 and the second roller assembly 40 are spaced apart in the up and down directions.

[0039] Further, the first roller assembly 30 includes a plurality of rollers (such as Figure 1 As shown in FIG. 1 , a plurality of first roller assemblies 30 are arranged at intervals on the upper pressing plate 10, and a second roller assembly 40 includes a plurality of first roller assemblies 30 arranged at intervals on the lower pressing plate 20 along the left-right direction. Figure 1 As shown, a plurality of second roller assemblies 40 arranged at intervals are provided on the lower pressing plate 20 .

[0040] The first roller assembly 30 and the second roller assembly 40 are arranged in a one-to-one correspondence, and the first roller assembly 30 and the second roller assembly 40 cooperate with each other to perform a pressure-maintaining treatment on at least one membrane electrode assembly 200, such as Figure 1 As shown, the first roller assembly 30 and the second roller assembly 40 are arranged one by one in the up and down directions to ensure the pressure required for elastic stabilization of the membrane electrode assembly 200.

[0041] It is understood that the membrane electrode assembly 200 can be formed from one side of the elastic stabilization device 100 (eg Figure 1 and Figure 2 The first roller assembly 30 and the second roller assembly 40 are used to cooperate with each other to realize rolling and compacting the membrane electrode assembly 200, thereby meeting the elastic stabilization process of the membrane electrode assembly 200 and eliminating air leakage of the membrane electrode assembly 200.

[0042] According to the elastic stabilization device 100 for the membrane electrode assembly 200 of the embodiment of the present invention, two rows of roller assemblies are used to roll and compact the membrane electrode assembly 200, which has a good pressure-maintaining effect on the membrane electrode assembly 200 and effectively avoids air leakage in the membrane electrode assembly 200.

[0043] According to one embodiment of the present invention, each first roller assembly 30 and each second roller assembly 40 includes a support rod 41 and a roller 42, that is, each first roller assembly 30 includes a support rod 41 and a roller 42, each second roller assembly 40 includes a support rod 41 and a roller 42, the first roller assembly 30 and the second roller assembly 40 have the same structural composition, the support rod 41 of the first roller assembly 30 is connected between the upper pressing plate 10 and the roller 42, and the support rod 41 of the second roller assembly 40 is connected between the lower pressing plate 20 and the roller 42. The roller 42 of the first roller assembly 30 and the roller 42 of the second roller assembly 40 are arranged relatively up and down.

[0044] In this way, the membrane electrode assembly 200 is rolled and compacted by the upper and lower rows of rollers 42, and then the membrane electrode assembly 200 is pressure-maintained, thereby optimizing the elastic stabilization process. Compared with the method of simply using a servo press to perform pressure maintenance on the membrane electrode assembly 200 in the related art, air leakage can be effectively avoided.

[0045] like Figure 1 As shown, according to an optional example of the present invention, the support rod 41 of the first roller assembly 30 is vertically fixed on the upper pressure plate 10, and the pressure of the upper pressure plate 10 can be more transmitted to the roller 42 of the first roller assembly 30, and the support rod 41 of the second roller assembly 40 is vertically fixed on the lower pressure plate 20. In this way, the first roller assembly 30 and the second roller assembly 40 can cooperate to better roll and press the membrane electrode assembly 200.

[0046] According to another optional example of the present invention, in the left-right direction, with a specific roller assembly 31 in the middle of the multiple first roller assemblies 30 as the boundary, the lengths of the support rods 41 of the multiple first roller assemblies 30 located on the left side of the specific roller assembly 31 are all the same, and the lengths of the support rods 41 of the multiple first roller assemblies 30 located on the right side of the specific roller assembly 31 gradually decrease from left to right. According to another optional example of the present invention, the lengths of the support rods 41 of the multiple second roller assemblies 40 are all the same.

[0047] It should be noted that the reserved length of the first conveyor belt 43 on the left side of the specific roller assembly 31 is greater than the longest side length of the membrane electrode assembly 200, so that when the membrane electrode assembly 200 moves to the left side of the specific roller assembly 31, the first roller assembly 30 and the second roller assembly 40 cooperate up and down to maintain the pressure on the membrane electrode assembly 200, and ensure that the pressure-maintaining effect on the membrane electrode assembly 200 is more uniform.

[0048] like Figure 1 and Figure 2As shown, starting from left to right, with the sixth roller assembly of the plurality of first roller assemblies 30 as the boundary, the plurality of first roller assemblies 30 on the right side of the sixth roller assembly gradually extend upwardly and tilted, that is, the length of the support rods 41 of the plurality of first roller assemblies 30 on the right side of the sixth roller assembly gradually decreases, so as to make room for the feeding of the membrane electrode assembly 200; the lengths of the support rods 41 of the plurality of first roller assemblies 30 on the left side of the sixth roller assembly are the same, and are used to perform pressure-maintaining treatment on the transported membrane electrode assembly 200, so as to ensure the elastic stabilization process of the membrane electrode assembly 200.

[0049] It can be understood that a plurality of support rods 41 are vertically fixed on the upper pressure plate 10, and the lengths of the plurality of support rods 41 remain unchanged for a certain number of pieces from left to right. Starting from a specific support rod 41, the length decreases, so that the roller 42 on the decreasing part of the support rod 41 presents a certain inclination.

[0050] According to another embodiment of the present invention, the elastic stabilization device 100 for the membrane electrode assembly 200 also includes: a first conveyor belt 43 and a second conveyor belt 44, the first conveyor belt 43 is wrapped around the rollers 42 of the multiple first roller assemblies 30, and the second conveyor belt 44 is wrapped around the rollers 42 of the multiple second roller assemblies 40, for supporting the membrane electrode assembly 200 and transporting the membrane electrode assembly 200.

[0051] Further, the right distance between the first conveyor belt 43 and the second conveyor belt 44 in the up-down direction is determined according to the product of the number of membrane electrode assemblies 200 on the second conveyor belt 44 and the total thickness of the membrane electrode assembly 200 on the second conveyor belt 44, so as to reasonably determine the right distance between the first conveyor belt 43 and the second conveyor belt 44. The left distance between the first conveyor belt 43 and the second conveyor belt 44 in the up-down direction is the product of the number of membrane electrode assemblies 200 and the theoretical compressed thickness of the membrane electrode assembly 200 on the second conveyor belt 44, so as to reasonably determine the left distance between the first conveyor belt 43 and the second conveyor belt 44.

[0052] Optionally, the left side distance between the first conveyor belt 43 and the second conveyor belt 44 can also be directly determined, that is, the left side distance between the first conveyor belt 43 and the second conveyor belt 44 in the up and down directions is the product of the number of membrane electrode assemblies 200 and the theoretical compression thickness of the membrane electrode assembly 200 on the second conveyor belt 44.

[0053] According to another optional example of the present invention, the leftmost roller 42 and the rightmost roller 42 of the plurality of second roller assemblies 40 are respectively connected to a first motor (not shown) for respectively driving the leftmost roller 42 and the rightmost roller 42 to rotate, thereby driving the second conveyor belt 44 to operate and meeting the requirement of transporting the membrane electrode assembly 200.

[0054] According to another embodiment of the present invention, the elastic stabilization device 100 for the membrane electrode assembly 200 further includes a servo press 50. The servo press 50 is connected to the upper pressing plate 10 via a pressing rod 60 to drive the upper pressing plate 10 to press downward, thereby providing downward pressure on the membrane electrode assembly 200. At the same time, the upper and lower rows of rollers 42 are arranged one by one to ensure the pressure required for elastic stabilization.

[0055] like Figure 3 As shown, according to the elastic stabilization method of the membrane electrode assembly 200 of the second embodiment of the present invention, the membrane electrode assembly 200 is subjected to pressure maintenance treatment according to the elastic stabilization device 100 for the membrane electrode assembly 200 in the above embodiment, and the method includes the following specific steps:

[0056] S1, transporting one or more membrane electrode assemblies 200 from the right side of the elastic stabilization device 100 onto the second conveyor belt 44;

[0057] S2, the second conveyor belt 44 transports the membrane electrode assembly 200 from right to left at a certain speed. During the movement of the membrane electrode assembly 200, the position sensor based on the first conveyor belt 43 monitors the vertical distance between the top membrane electrode assembly 200 and the first conveyor belt 43. When the vertical distance is too large, the servo press 50 will move downward;

[0058] S3, when the uppermost membrane electrode assembly 200 contacts the second conveyor belt 44, the pressure is slowly increased by the servo press 50, and when the entire membrane electrode assembly 200 enters the left side of the specific first roller assembly 30, the upper pressing plate 10 and the lower pressing plate 20 cooperate to perform pressure-maintaining treatment on the membrane electrode assembly 200;

[0059] S4, simultaneously giving the roller 42 of the first roller assembly 30 and the roller 42 of the second roller assembly 40 a certain frequency of vibration to heat the roller 42 of the first roller assembly 30 and the roller 42 of the second roller assembly 40;

[0060] S5, at the same time, the next batch of membrane electrode assemblies 200 are placed on the second conveyor belt 44 from the right side of the elastic stabilization device 100;

[0061] S6. Continue to start a new round of elastic stabilization process, and repeat the above steps in a cycle.

[0062] According to the elastic stabilization method of the membrane electrode assembly 200 of the embodiment of the present invention, the membrane electrode assembly 200 is rolled and compacted by using upper and lower rows of roller assemblies, which has a good pressure-maintaining effect on the membrane electrode assembly 200 and effectively avoids air leakage of the membrane electrode assembly 200.

[0063] It is understandable that when the membrane electrode assembly 200 is moving, the position sensor based on the first conveyor belt 43 monitors the vertical distance between the top membrane electrode assembly 200 and the first conveyor belt 43. When the vertical distance is too large, the upper servo press 50 will move downward.

[0064] When the top membrane electrode assembly 200 contacts the first conveyor belt 43, the pressure is slowly increased. When the entire membrane electrode assembly 200 enters the horizontal area of ​​the first conveyor belt, the pressure holding treatment is started. At the same time, the next batch (pieces) of membrane electrode assemblies 200 are placed on the second conveyor belt 44 on the right, and a new elastic stabilization process is started.

[0065] In addition, vibration and heating can also accelerate the elastic stabilization process. After the downward pressure is stabilized, the roller 42 can be vibrated at a certain frequency and heated to optimize the elastic stabilization process.

[0066] In the related art, before stacking the membrane electrode assembly, a servo press can be used to perform pressure-maintaining treatment on the membrane electrode assembly for a period of time to eliminate the elastic deformation of the membrane electrode assembly. However, due to the different roughness and parallelism of the upper and lower pressure heads of the servo press and the long pressure-maintaining time, the membrane electrode assembly may leak. In order to increase the speed of actual production preparation, multiple (more than two) membrane electrode assemblies can be processed in one elastic stabilization process. During the elastic stabilization process, the servo press performs elastic stabilization treatment on multiple membrane electrode assemblies for a certain period of time. During this stabilization time, production is intermittent, which is not in line with the efficient production of the assembly line.

[0067] In the present application, on the one hand, two rows of roller assemblies are used to roll and compact the membrane electrode assembly 200, and two rows of rollers 42 are used to roll and compact relative to each other to perform the elastic stabilization process, which has a good pressure-maintaining effect on the membrane electrode assembly 200 and effectively avoids air leakage in the membrane electrode assembly 200; on the other hand, during the elastic stabilization process of the membrane electrode assembly 200, the feeding and unloading process of the membrane electrode assembly 200 on the elastic stabilization device 100 is continuous and uninterrupted, which conforms to the efficient production of the assembly line and greatly improves the production efficiency. Compared with the method of increasing the production efficiency by adding servo presses in the related art, the present application increases the number of rollers 42 and the length of the conveyor belt, which is lower in cost and more conducive to the continuity of the process. Furthermore, frequency conversion vibration, heating and other methods are added on the basis of the rollers 42 to further optimize the elastic stabilization process.

[0068] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0069] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An elastic stabilization device for a membrane electrode assembly, characterized in that: include: An upper pressing plate and a lower pressing plate, wherein the upper pressing plate and the lower pressing plate are arranged parallel to and spaced apart from each other in the up-down direction, and the upper pressing plate is located directly above the lower pressing plate; A plurality of roller assemblies, the plurality of roller assemblies include two groups, namely a first roller assembly and a second roller assembly, the first roller assembly is arranged on the upper pressing plate, and the second roller assembly is supported on the lower pressing plate, the first roller assembly and the second roller assembly are arranged spaced apart in the up-down direction, the first roller assembly includes a plurality of rollers arranged spaced apart on the upper pressing plate in the left-right direction, the second roller assembly includes a plurality of rollers arranged spaced apart on the lower pressing plate in the left-right direction, the first roller assembly and the second roller assembly are arranged one by one, and the first roller assembly and the second roller assembly cooperate with each other to perform pressure-maintaining treatment on at least one membrane electrode assembly; In the left-right direction, with a specific roller assembly in the middle of the multiple first roller assemblies as the boundary, the lengths of the support rods of the multiple first roller assemblies located on the left side of the specific roller assembly are all the same, and the lengths of the support rods of the multiple first roller assemblies located on the right side of the specific roller assembly gradually decrease from left to right, and the rollers on the decreasing part of the support rods show a certain inclination to make room for the feeding of the membrane electrode assembly; the lengths of the support rods of the multiple second roller assemblies are all the same, which are used to perform pressure maintenance treatment on the transported membrane electrode assembly.

2. The elastic stabilization device for a membrane electrode assembly according to claim 1, characterized in that: Each of the first roller assemblies and each of the second roller assemblies comprises: a support rod and a roller, wherein the support rod of the first roller assembly is connected between the upper pressing plate and the roller, and the support rod of the second roller assembly is connected between the lower pressing plate and the roller.

3. The elastic stabilization device for a membrane electrode assembly according to claim 2, characterized in that: The support rod of the first roller assembly is vertically fixed on the upper pressing plate, and the support rod of the second roller assembly is vertically fixed on the lower pressing plate.

4. The elastic stabilization device for a membrane electrode assembly according to claim 1, characterized in that: Also includes: A first conveyor belt and a second conveyor belt, wherein the first conveyor belt is wrapped around the rollers of the plurality of first roller assemblies, and the second conveyor belt is wrapped around the rollers of the plurality of second roller assemblies.

5. The elastic stabilization device for a membrane electrode assembly according to claim 4, characterized in that: The right side distance between the first conveyor belt and the second conveyor belt in the up and down direction is determined according to the product of the number of membrane electrode assemblies on the second conveyor belt and the total thickness of the membrane electrode assembly on the second conveyor belt, and the left side distance between the first conveyor belt and the second conveyor belt in the up and down direction is the product of the number of membrane electrode assemblies and the theoretical compressed thickness of the membrane electrode assembly on the second conveyor belt.

6. The elastic stabilization device for a membrane electrode assembly according to claim 2, characterized in that: The leftmost roller and the rightmost roller of the plurality of second roller assemblies are respectively connected to a first motor for driving the leftmost roller and the rightmost roller to rotate.

7. The elastic stabilization device for a membrane electrode assembly according to claim 1, characterized in that: Also includes: A servo press is connected to the upper pressing plate via a pressing rod to drive the upper pressing plate to press downward.

8. A method for elastic stabilization of a membrane electrode assembly, characterized in that: According to the elastic stabilization device for a membrane electrode assembly according to any one of claims 1 to 7, the membrane electrode assembly is subjected to pressure maintenance treatment, and the method comprises the following specific steps: S1, transporting one or more membrane electrode assemblies from the right side of the elastic stabilization device to the second conveyor belt; S2, the second conveyor belt conveys the membrane electrode assembly from right to left at a certain speed. During the movement of the membrane electrode assembly, a position sensor based on the first conveyor belt monitors the vertical distance between the top membrane electrode assembly and the first conveyor belt. When the vertical distance is too large, the servo press moves downward; S3, when the uppermost membrane electrode assembly contacts the second conveyor belt, the pressure is slowly increased by the servo press, and when the entire membrane electrode assembly enters the left side of the specific first roller assembly, the upper pressing plate and the lower pressing plate cooperate to perform pressure-maintaining treatment on the membrane electrode assembly; S4, simultaneously giving the roller of the first roller assembly and the roller of the second roller assembly a certain frequency of vibration to heat the roller of the first roller assembly and the roller of the second roller assembly; S5, simultaneously, the next batch of the membrane electrode assemblies is placed onto the second conveyor belt from the right side of the elastic stabilization device; S6. Continue to start a new round of elastic stabilization process, and repeat the above steps in a cycle.

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