Electrolyte flow field structure and electrolytic bath

Abstract

The utility model relates to an electrolyte flow field structure and an electrolytic bath, the electrolyte flow field structure comprises a pole frame and a flow field assembly, and the pole frame is provided with a containing cavity; the flow field assembly is arranged in the containing cavity and comprises a plurality of first through holes, and the first through holes are arranged in an arrayed mode, so that the electrolyte can be evenly distributed, and generated bubbles can be normally discharged. The containing cavity is formed in the electrode frame and used for containing the flow field assembly, the first through holes are formed in the flow field assembly, the first through holes are arranged in an arrayed mode, the flow field structure is simplified, machining forming is facilitated, the cost is reduced, after the electrolyte enters the containing cavity, the electrolyte can be evenly distributed on the flow field assembly, and the service life of the battery is prolonged. Regional flow resistance of the electrolyte is reduced, and regional accumulation of bubbles and regional increase of heat are avoided.

Description

Technical Field

[0001] This application relates to the technical field of batteries, and particularly to an electrolyte flow field structure and an electrolytic cell. Background Art

[0002] The electrolytic cell is a key device for hydrogen production from alkaline electrolytes. The electrolytic cell can be divided into AEM (anion exchange membrane) electrolytic cells, ALK (alkaline electrolytic cells), and PEM (proton exchange membrane) electrolytic cells, etc. according to the nature of the membrane used.

[0003] The flow field structure inside the electrolytic cell has an important impact on the efficiency of hydrogen production by electrolyzing water. Currently, the electrolytic cell usually adopts a stamping (papillary plate) flow field or a machined flow field. However, in the existing flow field structures, the flow channels are unevenly distributed, the liquid flow resistance becomes larger, and it is easy to cause heat generation and bubble aggregation in some areas of the flow field. Utility Model Content

[0004] Based on this, an electrolyte flow field structure and an electrolytic cell are provided.

[0005] In a first aspect, this application provides an electrolyte flow field structure, including:

[0006] A pole frame, the pole frame is provided with a receiving cavity;

[0007] A flow field component, the flow field component is arranged in the receiving cavity, and the flow field component includes a plurality of first through holes, and each first through hole is arranged in an array.

[0008] In one embodiment, the flow field component includes at least 2 first flow guiding members and at least 2 second flow guiding members;

[0009] Each first flow guiding member is arranged at intervals along a first direction, and each second flow guiding member is arranged at intervals along a second direction; the first flow guiding member is alternately connected to at least 2 second flow guiding members;

[0010] The first through hole is formed by enclosing with 2 corresponding first flow guiding members and 2 first flow guiding members.

[0011] In one embodiment, there is a gap between the flow field component and the inner wall of the receiving cavity.

[0012] In one embodiment, the pole frame is further provided with a first port and a second port;

[0013] The first port and the second port are respectively communicated with the receiving cavity.

[0014] In one embodiment, the pole frame is further provided with a first flow splitting area, and the first flow splitting area is communicated between the first port and the receiving cavity;

[0015] And / or, the pole frame is further provided with a second flow splitting area, and the second flow splitting area is communicated between the second port and the receiving cavity.

[0016] In one embodiment, at least one first flow splitter is provided in the first flow splitting region; at least one second flow splitter is provided in the second flow splitting region.

[0017] In one embodiment, the height of the first flow guide is 2 to 4 millimeters, and the thickness of the first flow guide is 0.3 to 1 millimeter; the height of the second flow guide is the same as that of the first flow guide, and the thickness of the second flow guide is the same as that of the first flow guide.

[0018] In one embodiment, the range of the first diagonal distance of the first through hole is 8 to 13 millimeters, and the range of the second diagonal distance of the first through hole is 3 to 6 millimeters.

[0019] In one embodiment, the first through hole is in a rhombic three-dimensional shape.

[0020] In a second aspect, the present application provides an electrolytic cell, including the electrolyte flow field structure according to any one of the above.

[0021] One of the above technical solutions has the following advantages and beneficial effects:

[0022] In the above electrolyte flow field structure, it includes a bipolar plate frame and a flow field component. The bipolar plate frame is provided with a receiving cavity; the flow field component is arranged in the receiving cavity. The flow field component includes a plurality of first through holes, and each first through hole is arranged in an array, which can realize the uniform distribution of the electrolyte so that the generated bubbles can be discharged normally. In the present application, by providing a receiving cavity in the bipolar plate frame to accommodate the flow field component, and by providing each first through hole in the flow field component and arranging each first through hole in an array, the flow field structure is simplified, which is convenient for processing and forming, reduces the cost. After the electrolyte enters the receiving cavity, the electrolyte can be uniformly distributed on the flow field component, reducing the regional flow resistance of the electrolyte and avoiding the regional accumulation of bubbles and the regional increase of heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the first perspective structure of the electrolyte flow field structure in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of the second disassembled structure of the electrolyte flow field structure in an embodiment of the present application;

[0025] Figure 3 is a schematic diagram of the first perspective structure of the electrolyte flow field structure in an embodiment of the present application;

[0026] Figure 4 is Figure 3 the enlarged schematic diagram of the structure at A in

[0027] Figure 5This is a schematic diagram of the first cross-sectional structure of the electrolyte flow field structure in the embodiments of the present application;

[0028] Figure 6 It is Figure 5 an enlarged schematic diagram of part B in

[0029] Reference numerals:

[0030] 10. Pole frame; 110. Accommodating cavity; 120. First port; 130. Second port; 140. First shunt area; 142. First shunt member; 150. Second shunt area; 152. Second shunt member; 20. Flow field assembly; 210. First through hole; 220. First guide member; 230. Second guide member. Detailed implementation manners

[0031] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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 of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0032] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of the present application here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those clearly listed steps or units, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0033] In the present application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation.

[0034] Moreover, in addition to being used to represent orientation or positional relationships, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to the specific circumstances.

[0035] In addition, the meaning of the term "plurality" shall be two or more.

[0036] It should be noted that, without conflict, the embodiments in this application and the features in the embodiments can be combined with each other. The following will detail this application with reference to the drawings and in conjunction with the embodiments.

[0037] In one embodiment, as Figure 1 and Figure 2 shown, an electrolyte flow field structure is provided, including a bipolar plate 10 and a flow field component 20. The bipolar plate 10 is provided with a receiving cavity 110; the flow field component 20 is arranged in the receiving cavity 110, and the flow field component 20 includes a plurality of first through holes 210, and the first through holes 210 are arranged in an array.

[0038] Among them, the electrolyte is an alkaline electrolytic liquid. For example, the electrolyte uses a concentrated alkaline liquid. The electrolyte flow field structure of the present application is applied to an electrolytic cell. By inputting the electrolyte into the electrolytic cell, the electrolyte can be evenly distributed in the electrolyte flow field structure. By energizing the electrolytic cell, hydrogen and oxygen can be generated from the electrolyte, and based on the electrolyte flow field structure, the generated hydrogen and oxygen can be evenly discharged, avoiding local accumulation of hydrogen and oxygen on the electrolyte flow field structure.

[0039] The bipolar plate 10 can be a bipolar plate 10 made of an alkaline-resistant metal material. For example, the bipolar plate 10 can be a bipolar plate 10 made of nickel, carbon steel nickel-plated or titanium, etc. The bipolar plate 10 can be in a square plate-like structure. For example, the bipolar plate 10 can be a square plate-like structure. It should be noted that the bipolar plate 10 can also be in a plate-like structure such as a rectangle, a circle or an ellipse. The specific shape of the bipolar plate 10 can be determined according to the model of the electrolytic cell. The bipolar plate 10 is provided with a receiving cavity 110, and the receiving cavity 110 is a through cavity, and the receiving cavity 110 is used to accommodate the flow field component 20. The receiving cavity 110 can be a square receiving cavity 110. Exemplarily, the receiving cavity 110 can also be in a cylindrical shape or the like. The receiving cavity 110 has a first opening and a second opening, and the first opening and the second opening of the receiving cavity 110 are connected and communicated.

[0040] The flow field component 20 can be a component made of an alkali-resistant metal material to prevent the flow field component 20 from being corroded by the strongly alkaline electrolyte, thereby improving the reliability of the electrolyte flow field structure. For example, the flow field component 20 can be a flow field component 20 made of materials such as nickel, nickel-plated carbon steel, or titanium. In one example, the flow field component 20 can be a flow field component 20 made of high-purity nickel material (such as nickel content ≥ 99%). The overall shape of the flow field component 20 can be a three-dimensional structure such as a square or a cylinder. It should be noted that the specific shape and size of the flow field component 20 can be determined according to the specific shape and size of the accommodation cavity 110.

[0041] The flow field component 20 includes a plurality of first through holes 210. For example, the flow field component 20 is provided with at least 2 first through holes 210. Each of the first through holes 210 is uniformly distributed and arranged in a queue. The first through hole 210 is a through hole, and the shape of the first through hole 210 can be, but is not limited to, a polygon or a circle, etc. For example, the first through hole 210 can be a square-shaped structure, and the sizes and shapes of each of the first through holes 210 are the same.

[0042] For example, by arranging each of the first through holes 210 in the flow field component 20 based on a preset queue, so that each of the first through holes 210 is uniformly distributed in the flow field component 20, and the flow field component 20 is arranged in the accommodation cavity 110 of the bipolar plate 10. When the electrolyte is input into the accommodation cavity 110 of the bipolar plate 10, the electrolyte can be uniformly distributed in each of the first through holes 210, facilitating the uniform flow of the electrolyte and further facilitating the discharge of the bubbles generated by the electrolyte.

[0043] In the above embodiments, the accommodation cavity 110 is provided through the bipolar plate 10; the flow field component 20 is arranged in the accommodation cavity 110, and the flow field component 20 includes a plurality of first through holes 210, and each of the first through holes 210 is arranged, which can achieve uniform distribution of the electrolyte so that the generated bubbles can be discharged normally. In this application, the accommodation cavity 110 is provided in the bipolar plate 10, and the accommodation cavity 110 is used to accommodate the flow field component 20. By providing each of the first through holes 210 in the flow field component 20 and arranging each of the first through holes 210, the flow field structure is simplified, facilitating processing and molding, reducing costs. After the electrolyte enters the accommodation cavity 110, the electrolyte can be uniformly distributed on the flow field component 20, reducing the regional flow resistance of the electrolyte and avoiding regional accumulation of bubbles and regional increase in heat.

[0044] In one embodiment, as Figure 3 and Figure 4As shown, the flow field component 20 includes at least two first flow guiding members 220 and at least two second flow guiding members 230; the first flow guiding members 220 are arranged at intervals along a first direction, and the second flow guiding members 230 are arranged at intervals along a second direction; the first flow guiding members 220 are alternately connected to at least two second flow guiding members 230; the first through hole 210 is formed by enclosing two corresponding first flow guiding members 220 and two first flow guiding members 220.

[0045] Among them, the first flow guiding member 220 and the second flow guiding member 230 can be flow guiding members made of alkali-resistant metal materials. For example, the first flow guiding member 220 and the second flow guiding member 230 can be flow guiding members made of materials such as nickel, nickel-plated carbon steel, or titanium. In one example, the first flow guiding member 220 and the second flow guiding member 230 can be flow guiding members made of high-purity nickel materials (such as nickel content ≥ 99%). Exemplarily, the first flow guiding member 220 and the second flow guiding member 230 can be elastic flow guiding members, that is, the flow field component 20 composed of the first flow guiding members 220 and the second flow guiding members 230 has elasticity.

[0046] The first flow guiding members 220 are arranged at equal intervals along the first direction, and the second flow guiding members 230 are arranged at equal intervals along the second direction, and the first direction and the second direction are non-parallel directions. Exemplarily, the first flow guiding members 220 and the second flow guiding members 230 are alternately adjacent in sequence, and based on a preset size, the first flow guiding members 220 and the second flow guiding members 230 after being alternately connected are cut, and then the flow field component 20 with the corresponding size is obtained.

[0047] Any one of the first flow guiding members 220 is alternately connected to at least two second flow guiding members 230, and any one of the second flow guiding members 230 is alternately connected to at least two first flow guiding members 220, so that two corresponding first flow guiding members 220 and two first flow guiding members 220 enclose the corresponding first through hole 210. It should be noted that the first flow guiding member 220 refers to the corresponding side of the corresponding first through hole 210, and the second flow guiding member 230 refers to the corresponding side of the corresponding first through hole 210. For example, the first through hole 210 is a rhombic through hole, that is, the first through hole 210 is composed of two first side edges in the first direction and two second side edges in the second direction, then the first flow guiding member 220 is the corresponding first side edge, and the length of the first flow guiding member 220 is the same as the length of the corresponding first side edge; the second flow guiding member 230 is the corresponding second side edge, and the length of the second flow guiding member 230 is the same as the length of the corresponding second side edge.

[0048] Exemplarily, the angle between the first flow guide member 220 and the correspondingly and alternately connected second flow guide member 230 is less than 90 degrees or greater than 90 degrees. Then, the corresponding first through holes 210 formed by enclosing with 2 corresponding first flow guide members 220 and 2 first flow guide members 220 are in a rhombic three-dimensional shape, so that the flow field assembly 20 forms a rhombic three-dimensional network structure. For another example, if the angle between the first flow guide member 220 and the correspondingly and alternately connected second flow guide member 230 is equal to 90 degrees, then the corresponding first through holes 210 formed by enclosing with 2 corresponding first flow guide members 220 and 2 first flow guide members 220 are in a square three-dimensional shape or a rectangular three-dimensional shape, so that the flow field assembly 20 forms a square three-dimensional network structure or a rectangular three-dimensional network structure. Thus, after the electrolyte enters the accommodation cavity 110, the electrolyte can be evenly distributed on the flow field assembly 20, facilitating the uniform flow of the electrolyte in the flow field assembly 20, reducing the regional flow resistance of the electrolyte, and avoiding the regional accumulation of bubbles and the regional increase of heat. In one example, each first flow guide member 220 and each second flow guide member 230 are of an integrally formed structure. For example, corresponding stamping dies can be used for processing and manufacturing, and then the flow field assembly 20 with each first flow guide member 220 and each second flow guide member 230 is obtained, simplifying the flow field structure and reducing the cost.

[0049] In one embodiment, as Figure 3 shown, there is a gap between the flow field assembly 20 and the inner wall of the accommodation cavity 110.

[0050] Wherein, the gap between the flow field assembly 20 and the inner wall of the accommodation cavity 110 can be set between 1 millimeter and 5 millimeters. For example, the size of the accommodation cavity 110 of the flow field assembly 20 is set to be larger than the size of the flow field assembly 20, so that when the flow field assembly 20 is arranged in the accommodation cavity 110 of the bipolar plate frame 10, there is a gap between the flow field assembly 20 and the inner wall of the accommodation cavity 110, realizing the separate arrangement between the flow field assembly 20 and the bipolar plate frame 10. Furthermore, the convenience of assembling the flow field assembly 20 is improved, and at the same time, the electrolyte input into the accommodation cavity 110 can flow from the gap, improving the smoothness of the electrolyte flow.

[0051] In one embodiment, as Figure 1 and Figure 2 shown, the bipolar plate frame 10 is further provided with a first port 120 and a second port 130; the first port 120 and the second port 130 are respectively communicated with the accommodation cavity 110.

[0052] Wherein, the first port 120 can be used as the liquid inlet, and the second port 130 as the liquid outlet. Similarly, if the second port 130 is used as the liquid inlet, then the first port 120 is the liquid outlet.

[0053] Exemplarily, the first port 120 and the second port 130 can be symmetrically arranged based on the center of the accommodating cavity 110. The first port 120 is connected between the liquid inlet module and the accommodating cavity 110, and the second port 130 is connected between the liquid outlet module and the accommodating cavity 110. The liquid inlet module transmits electrolyte into the accommodating cavity 110 through the first port 120. The electrolyte flows evenly through the flow field component 20, so that the electrolyte is evenly distributed in the flow field component 20, the bubbles generated by the electrolyte can be discharged normally, and the liquid after electrolysis treatment can be transmitted to the liquid outlet module through the second port 130 to complete the transmission of the electrolyte.

[0054] In one embodiment, as Figure 1 and Figure 2 shown, the bipolar plate 10 is further provided with a first flow splitting area 140, and the first flow splitting area 140 is connected between the first port 120 and the accommodating cavity 110; and / or, the bipolar plate 10 is further provided with a second flow splitting area 150, and the second flow splitting area 150 is connected between the second port 130 and the accommodating cavity 110.

[0055] Wherein, the first flow splitting area 140 is arranged between the first port 120 and the accommodating cavity 110, the second flow splitting area 150 is arranged between the second port 130 and the accommodating cavity 110, and the first flow splitting area 140 and the second flow splitting area 150 are symmetrically arranged based on the center of the accommodating cavity 110. The first flow splitting area 140 is used to split and transmit the electrolyte transmitted by the first port 120 into the accommodating cavity 110, so as to enter the flow field component 20 dispersedly, improve the uniformity of the electrolyte entering the flow field component 20, and realize the uniform distribution of the electrolyte in the flow field component 20. The second flow splitting area 150 is used to split the electrolyte flowing back in the accommodating cavity 110 into the second port 130, so that the electrolyte can be discharged smoothly from the second port 130.

[0056] In one embodiment, as Figure 1 and Figure 4 shown, the first flow splitting area 140 is provided with at least one first flow splitting member 142; the second flow splitting area 150 is provided with at least one second flow splitting member 152.

[0057] Wherein, the first flow splitting member 142 and the second flow splitting member 152 can be in a cylindrical structure, the first flow splitting member 142 and the bipolar plate 10 can be an integrally formed structure, and the second flow splitting member 152 and the bipolar plate 10 can be an integrally formed structure.

[0058] Exemplarily, the first flow splitting area 140 can be provided with 3 first flow splitting members 142, and the first flow splitting members 142 are arranged at intervals. Then, the electrolyte transmitted by the first port 120 is split and transmitted into the accommodating cavity 110 through each first flow splitting member 142, so as to enter the flow field component 20 dispersedly, improve the uniformity of the electrolyte entering the flow field component 20, and facilitate the uniform distribution of the electrolyte in the flow field component 20.

[0059] The second flow splitting region 150 may be provided with three second flow splitting members 152, and the second flow splitting members 152 are arranged at intervals, so that the electrolyte transmitted through the accommodation cavity 110 is split and transmitted back to the second port 130 through each second flow splitting member 152, realizing split output to the second port 130, so that the electrolyte can be smoothly discharged from the second port 130.

[0060] In one embodiment, as Figure 5 and Figure 6 shown, the height k of the first flow guiding member 220 is 2 to 4 millimeters, and the thickness of the first flow guiding member 220 is 0.3 to 1 millimeter; the height of the second flow guiding member 230 is the same as the height of the first flow guiding member 220, and the thickness of the second flow guiding member 230 is the same as the thickness of the first flow guiding member 220.

[0061] Among them, the sizes of the first flow guiding member 220 and the second flow guiding member 230 can be set according to the pressure bearing capacity of the electrolytic cell. For example, the size setting of the flow field assembly 20 satisfies that the maximum pressure bearing of the electrolytic cell is 3.2 MPa, that is, the flow field assembly 20 can be used normally when the pressure bearing of the electrolytic cell ≤ 3.2 MPa. It should be noted that the size of the flow field assembly 20 can be calculated by simulation to facilitate the production and processing of the flow field structure.

[0062] Exemplarily, the height k of the first flow guiding member 220 and the second flow guiding member 230 can be set to 3 millimeters, and the thickness of the first flow guiding member 220 and the second flow guiding member 230 can be set to 0.5 millimeter.

[0063] In one embodiment, as Figure 3 and Figure 4 shown, the range of the first diagonal distance of the first through hole 210 is 8 to 13 millimeters, and the range of the second diagonal distance of the first through hole 210 is 3 to 6 millimeters.

[0064] Exemplarily, the first through hole 210 is in a rhombic three-dimensional shape. The first diagonal distance of the first through hole 210 is the long pitch m, and the second diagonal distance of the first through hole 210 is the short pitch n. For example, the first diagonal distance of the first through hole 210 can be 8 millimeters, and the second diagonal distance of the first through hole 210 can be 4 millimeters. The lengths of the two first flow guiding members 220 and the two second flow guiding members 230 enclosing the first through hole 210 are equal. For example, the length range of the corresponding first flow guiding member 220 and the second flow guiding member 230 is set to 2 to 4 millimeters.

[0065] The flow field component 20 is set as a rhombic three-dimensional network structure, which simplifies the flow field structure, facilitates processing and forming, and reduces costs. After the electrolyte enters the accommodation cavity 110, the electrolyte can flow evenly through each first through hole 210, realizing uniform distribution of the electrolyte on the flow field component 20, and enabling the generated bubbles to be discharged normally, reducing the regional flow resistance of the electrolyte, and avoiding regional accumulation of bubbles and regional increase in heat.

[0066] In one embodiment, an electrolytic cell is further provided, including the electrolyte flow field structure as described in any one of the above.

[0067] Among them, the electrolytic cell can be an AEM (anion exchange membrane) electrolytic cell.

[0068] For the specific description content of the electrolyte flow field structure, reference can be made to the specific description of the electrolyte flow field structure in the above embodiments, and details will not be repeated here.

[0069] The electrolyte flow field structure is arranged in the cell body of the electrolytic cell. The electrolyte flow field structure includes a bipolar plate frame and a flow field component. The bipolar plate frame is provided with an accommodation cavity; the flow field component is arranged in the accommodation cavity. The flow field component includes a number of first through holes, and each first through hole is arranged in an array, which can realize uniform distribution of the electrolyte so that the generated bubbles can be discharged normally.

[0070] In the above embodiments, by providing an accommodation cavity in the bipolar plate frame for accommodating the flow field component, and by providing each first through hole in the flow field component and arranging each first through hole in an array, the flow field structure is simplified, facilitating processing and forming, and reducing costs. After the electrolyte enters the accommodation cavity, the electrolyte can be evenly distributed on the flow field component, reducing the regional flow resistance of the electrolyte, and avoiding regional accumulation of bubbles and regional increase in heat.

[0071] It should be noted that the electrolytic cell may further include components such as a cell body. Specifically, the electrolytic cell may include more components than those described in the above embodiments, or combine certain components, or have different component arrangements.

[0072] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0073] The above embodiments only represent several implementation manners of the present application, and their descriptions are relatively specific and detailed, but should not be construed as limiting the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An electrolyte flow field structure, characterized in that: include: A pole frame, wherein the pole frame is provided with a receiving cavity; A flow field component is arranged in the accommodating cavity, and the flow field component includes a plurality of first through holes, and the first through holes are arranged in an array.

2. The electrolyte flow field structure according to claim 1, characterized in that: The flow field assembly includes at least two first flow guides and at least two second flow guides; The first flow guides are arranged in intervals along the first direction, and the second flow guides are arranged in intervals along the second direction; the first flow guides are alternately connected to at least two of the second flow guides; The first through hole is formed by enclosing two corresponding first flow guide members and two corresponding first flow guide members.

3. The electrolyte flow field structure according to claim 2, characterized in that: There is a gap between the flow field component and the inner wall of the accommodating cavity.

4. The electrolyte flow field structure according to claim 1, characterized in that: The pole frame is also provided with a first port and a second port; The first port and the second port are respectively connected to the accommodating cavity.

5. The electrolyte flow field structure according to claim 4, characterized in that: The pole frame is also provided with a first shunt region, and the first shunt region is connected between the first port and the accommodating cavity; And / or, the pole frame is further provided with a second shunt area, and the second shunt area is connected between the second port and the accommodating cavity.

6. The electrolyte flow field structure according to claim 5, characterized in that: The first flow diversion area is provided with at least one first flow diversion component; the second flow diversion area is provided with at least one second flow diversion component.

7. The electrolyte flow field structure according to claim 2, characterized in that: The height of the first flow guide is 2 to 4 mm, and the thickness of the first flow guide is 0.3 to 1 mm; the height of the second flow guide is the same as that of the first flow guide, and the thickness of the second flow guide is the same as that of the first flow guide.

8. The electrolyte flow field structure according to claim 1, characterized in that: The first diagonal distance of the first through hole ranges from 8 to 13 mm, and the second diagonal distance of the first through hole ranges from 3 to 6 mm.

9. The electrolyte flow field structure according to any one of claims 1 to 6, characterized in that: The first through hole is in a three-dimensional diamond shape.

10. An electrolytic cell, characterized in that: Comprising the electrolyte flow field structure as described in any one of claims 1 to 9.

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