Proton exchange membrane battery

Abstract

The utility model provides a proton exchange membrane battery. The proton exchange membrane battery comprises a cathode bipolar plate, a membrane electrode, an anode bipolar plate and an anode end plate which are sequentially stacked, a runner is arranged on one surface, close to the membrane electrode, of the anode bipolar plate, a groove is formed in one surface, close to the anode end plate, of the anode bipolar plate, and the runner is exposed out of the bottom surface of the groove; a bulge is arranged on one surface, close to the anode bipolar plate, of the anode end plate, and the height of the bulge is consistent with the depth of the groove; and the anode end plate is made of a transparent material. Through the transparent anode end plate, the generation, separation and convergence processes of bubbles in the flow channels of the anode bipolar plate can be observed, the influence of different flow channels on the bubbles and water flow forms can be known, and the flow channels and related structures of the proton exchange membrane battery can be conveniently optimized.

Description

Technical Field

[0001] This application belongs to the field of new energy technology, specifically relating to a proton exchange membrane battery. Background Technology

[0002] Green hydrogen energy technology is gradually becoming an important part of ecological civilization construction, and the proton exchange membrane battery (PEM) is one of the key technologies in green hydrogen energy. Air bubbles in the flow channel of a PEM can affect the function of the water electrolysis battery. However, current PEM technology cannot accurately understand the processes of bubble generation, separation, and aggregation in the flow channel, meaning it cannot directly obtain the influence of different flow fields on bubble and water flow patterns, making it difficult to optimize the flow channel and related structures of the PEM. Utility Model Content

[0003] To address the problems existing in the prior art, a proton exchange membrane battery is proposed, which can solve the aforementioned problems.

[0004] This application provides the following solutions.

[0005] In a first aspect, this application provides a proton exchange membrane battery, which includes: a cathode bipolar plate, a membrane electrode, an anode bipolar plate, and an anode end plate arranged in sequence.

[0006] A flow channel is provided on the side of the anode bipolar plate near the membrane electrode, and a groove is provided on the side of the anode bipolar plate near the anode end plate. The flow channel penetrates the anode bipolar plate in a direction perpendicular to the flow direction, and the bottom surface of the groove is exposed.

[0007] The side of the anode end plate closest to the anode bipolar plate has a protrusion, the height of which is the same as the depth of the groove.

[0008] The anode plate is made of transparent material.

[0009] In some possible embodiments, the flow channel includes any one of a straight flow channel, a wavy flow channel, and a polygonal flow channel.

[0010] In some possible embodiments, a first sealing portion is provided around the flow channel of the anode bipolar plate, and a second sealing portion is provided around the groove. The first and second sealing portions are used to prevent fluid leakage in the flow channel.

[0011] In some possible embodiments, the proton exchange membrane battery also includes a cathode end plate;

[0012] The cathode end plate is positioned on the side of the cathode bipolar plate away from the membrane electrode.

[0013] In some possible embodiments, the proton exchange membrane battery also includes carbon paper;

[0014] A first resin border is provided around the carbon paper;

[0015] Carbon paper is also placed between the membrane electrode and the cathode bipolar plate.

[0016] In some possible embodiments, the proton exchange membrane battery also includes titanium felt;

[0017] A second resin border is provided around the titanium felt;

[0018] The titanium felt is placed between the membrane electrode and the anode bipolar plate.

[0019] In some possible embodiments, the proton exchange membrane battery further includes: fasteners;

[0020] Holes are provided at corresponding positions of the cathode end plate, cathode bipolar plate, first resin frame, second resin frame, anode bipolar plate, and anode end plate;

[0021] Fasteners are used to secure the cathode end plate, cathode bipolar plate, first resin frame, second resin frame, anode bipolar plate, and anode end plate by passing through holes in sequence.

[0022] In some possible embodiments, the membrane electrode includes a proton exchange membrane and a catalyst.

[0023] In some possible embodiments, the anode plate is made of transparent acrylic material.

[0024] In some possible embodiments, the proton exchange membrane battery is a single cell.

[0025] The proton exchange membrane battery provided in this application embodiment allows observation of the generation, separation, and aggregation of bubbles in the flow channel of the anode bipolar plate through the transparent anode end plate. This helps to understand the influence of different flow channels on the bubble and water flow morphology, facilitating the optimization of the flow channel and related structure of the proton exchange membrane battery.

[0026] Other advantages of this application will be explained in more detail with reference to the following description and figures.

[0027] It should be understood that the above description is merely an overview of the technical solution of this application, so as to enable a clearer understanding of the technical means of this application and thus allow for its implementation in accordance with the contents of the specification. To make the above and other objects, features, and advantages of this application more apparent and understandable, specific embodiments of this application are illustrated below. Attached Figure Description

[0028] By reading the detailed description of the exemplary embodiments below, those skilled in the art will understand the advantages and benefits described herein, as well as other advantages and benefits. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0029] Figure 1 A schematic diagram of a proton exchange membrane battery provided in an embodiment of this application;

[0030] Figure 2 A schematic diagram of an anode bipolar plate provided in an embodiment of this application;

[0031] Figure 3 A schematic diagram of a male end plate provided in an embodiment of this application;

[0032] Figure 4 A schematic diagram of an anode bipolar plate provided in an embodiment of this application;

[0033] Figure 5 This is a schematic diagram of a proton exchange membrane battery provided in an embodiment of this application.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Cathode bipolar plate; 2. Membrane electrode; 3. Anode bipolar plate; 31. Flow channel; 32. Groove; 33. First sealing part; 34. Second sealing part; 4. Anode end plate; 41. Protrusion; 5. Cathode end plate; 6. Carbon paper; 61. First resin frame; 7. Titanium felt; 71. Second resin frame; 8. Fastener.

[0036] In the accompanying drawings, the same or corresponding reference numerals indicate the same or corresponding parts. Detailed Implementation

[0037] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.

[0038] In the description of embodiments of this application, it should be understood that terms such as "comprising" or "having" are intended to indicate the presence of the disclosed features, numbers, steps, actions, components, portions, or combinations thereof in this specification, and do not exclude the possibility of the presence of one or more other features, numbers, steps, actions, components, portions, or combinations thereof. The terms "first," "second," etc., are used only for ease of description to distinguish identical or similar technical features and should not be construed as indicating or implying the relative importance or number of these technical features. Thus, a feature defined by "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of embodiments of this application, unless otherwise stated, the term "multiple" means two or more.

[0039] Unless otherwise stated, " / " signifies "or," for example, A / B can mean either A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. For ease of description, spatial relation terms such as "below," "under," "above," and "upper" may be used here to describe the relationship between one element or feature shown in the accompanying drawings and other elements or features. It will be understood that these spatial relation terms are intended to include directions other than those depicted in the accompanying drawings for devices in use or operation.

[0040] It should also be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] See Figure 1 The figure is a schematic diagram of a proton exchange membrane battery provided in an embodiment of this application.

[0042] like Figure 1 As shown, the proton exchange membrane battery provided in this application embodiment includes: a cathode bipolar plate 1, a membrane electrode 2, an anode bipolar plate 3, and an anode end plate 4 arranged in sequence.

[0043] like Figure 2 As shown, a flow channel 31 is provided on the side of the anode bipolar plate 3 near the membrane electrode 2, and a groove 32 is provided on the side of the anode bipolar plate 3 near the anode end plate 4. The flow channel 31 penetrates the anode bipolar plate 3 in a direction perpendicular to the flow direction and is exposed at the bottom surface of the groove 32.

[0044] like Figure 3 As shown, a protrusion 41 is provided on the side of the anode end plate 4 near the anode bipolar plate 3, and the height of the protrusion 41 is the same as the depth of the groove 32.

[0045] The anode plate 4 is made of transparent material.

[0046] It should be noted that the proton exchange membrane battery in this embodiment can be a single cell. The flow channel 31 in this embodiment includes straight flow channels, wavy flow channels, zigzag flow channels, or other shapes; this embodiment is not limited to any particular shape. The anode plate in this embodiment can be made of transparent acrylic material or other transparent polymer materials, such as polystyrene, polycarbonate, styrene-acrylonitrile, etc.; this embodiment is not limited to any particular material. The membrane electrode 2 in this embodiment can include a proton exchange membrane and a catalyst. The anode bipolar plate and cathode bipolar plate in this embodiment can be made of titanium or other materials; this embodiment is not limited to any particular material.

[0047] Therefore, in the proton exchange membrane battery provided in this application, the flow channel of the anode bipolar plate penetrates the anode bipolar plate in a direction perpendicular to the flow direction and is exposed at the bottom surface of the groove. The flow channel at the bottom surface of the groove can be observed from the side of the anode bipolar plate flow channel. In this application, a protrusion on the anode end plate extends into the groove of the anode bipolar plate, sealing the flow channel exposed at the bottom surface of the groove, forming a surface of the flow channel close to the anode end plate. Thus, this application allows observation of the generation, separation, and aggregation of bubbles in the flow channel of the anode bipolar plate through the transparent anode end plate, understanding the influence of different flow channels on the bubble and water flow morphology, and facilitating the optimization of the flow channel and related structure of the proton exchange membrane battery.

[0048] In the embodiments of this application, such as Figure 4 As shown, a first sealing portion 33 is provided around the flow channel 31 of the anode bipolar plate, and a second sealing portion 34 is provided around the groove 32 of the anode bipolar plate. The first sealing portion 33 and the second sealing portion 34 are used to prevent fluid leakage in the flow channel 31. Specifically, the second sealing portion 33 is used to seal the anode bipolar plate 3 and the anode end plate 4 to prevent fluid in the flow channel 31 from leaking from the gap between the anode bipolar plate 3 and the anode end plate. In practical applications, the first sealing portion and the second sealing portion can be sealing components such as sealing rings or sealing strips, which are not limited in this embodiment. A groove can be provided around the groove of the anode bipolar plate for placing sealing rings or sealing strips.

[0049] like Figure 5As shown, the proton exchange membrane battery also includes a cathode plate 5, carbon paper 6, titanium felt 7, and fasteners 8; the cathode plate 5 is disposed on the side of the cathode bipolar plate 1 away from the membrane electrode 2. A first resin frame 61 is disposed around the carbon paper 6; the carbon paper 6 is disposed between the membrane electrode 2 and the cathode bipolar plate 1. A second resin frame 71 is disposed around the titanium felt 7; the titanium felt 7 is disposed between the membrane electrode 2 and the anode bipolar plate 3. The first resin frame 61 is used to fix the carbon paper 6, and the second resin frame 71 is used to fix the titanium felt 7. In the embodiments of this application, the first resin frame 61 and the second resin frame 71 can also be made of other materials, such as polymer materials, etc., and this embodiment of the application is not limited thereto.

[0050] Holes are provided at corresponding positions of the cathode end plate 5, cathode bipolar plate 1, first resin frame 61, second resin frame 71, anode bipolar plate 3, and anode end plate 4. Fasteners 8 are used to pass through the holes in sequence through the cathode end plate 5, cathode bipolar plate 1, first resin frame 61, second resin frame 71, anode bipolar plate 3, and anode end plate 4 for fixation, thereby forming a proton exchange membrane battery. In this embodiment, the fastener 8 can be a bolt, with its shank passing through the holes in sequence through the cathode end plate 5, cathode bipolar plate 1, first resin frame 61, second resin frame 71, anode bipolar plate 3, and anode end plate 4, and its two ends fastened with threaded nuts, thereby ensuring that the above components fit tightly together. In practical applications, the bolt can be made of 304 stainless steel or other materials; this embodiment does not limit the use of bolts.

[0051] In summary, the proton exchange membrane battery provided in this application embodiment has the anode end plate and the anode bipolar plate sealed by a sealing element. With the cooperation of the anode bipolar plate and the anode end plate, the generation, separation and aggregation of bubbles in the flow channel of the anode bipolar plate can be observed through the transparent anode end plate. This allows for understanding the influence of different flow channels on the bubble and water flow morphology, facilitating the optimization of the flow channel and related structure of the proton exchange membrane battery.

[0052] While illustrative embodiments of this application have been detailed and described in the accompanying drawings and foregoing description, they should be considered illustrative rather than restrictive. It should be understood that only certain exemplary embodiments have been shown and described, and all variations and modifications intended to protect within the spirit and scope of the claimed invention are intended to be protected. It should be understood that while the use of terms such as preferred, preferred, or more preferred in the above description to indicate that such described features may be more desirable, it may not be necessary, and implementations without these features may be contemplated, for example, within the scope of the invention defined by the appended claims. When reading the claims, the use of terms such as “a,” “an,” “at least one,” or “at least a portion” is not intended to limit the claim to one item unless specifically stated otherwise in the claim. When the language “at least a portion” and / or “a portion” is used, an item may include a portion and / or the entire item unless specifically stated otherwise.

[0053] While the spirit and principles of this application have been described above with reference to several specific embodiments, it should be understood that this application is not limited to the disclosed specific embodiments, and the division of aspects does not imply that features in these aspects cannot be combined. This application is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A proton exchange membrane battery, characterized in that, The proton exchange membrane battery includes: a cathode bipolar plate, a membrane electrode, an anode bipolar plate, and an anode end plate arranged in sequence; A flow channel is provided on the side of the anode bipolar plate near the membrane electrode, and a groove is provided on the side of the anode bipolar plate near the anode end plate. The flow channel penetrates the anode bipolar plate in a direction perpendicular to the flow direction and is exposed at the bottom surface of the groove. The anode end plate has a protrusion on the side closest to the anode bipolar plate, and the height of the protrusion is the same as the depth of the groove. The anode plate is made of transparent material.

2. The proton exchange membrane battery according to claim 1, characterized in that, The flow channel includes any one of the following: straight flow channel, wavy flow channel, and polygonal flow channel.

3. The proton exchange membrane battery according to claim 1, characterized in that, A first sealing portion is provided around the flow channel of the anode bipolar plate, and a second sealing portion is provided around the groove. The first sealing portion and the second sealing portion are used to prevent fluid leakage in the flow channel.

4. The proton exchange membrane battery according to claim 1, characterized in that, The proton exchange membrane battery also includes a cathode plate; The cathode end plate is disposed on the side of the cathode bipolar plate away from the membrane electrode.

5. The proton exchange membrane battery according to claim 4, characterized in that, The proton exchange membrane battery also includes carbon paper; A first resin border is provided around the carbon paper; The carbon paper is also disposed between the membrane electrode and the cathode bipolar plate.

6. The proton exchange membrane battery according to claim 5, characterized in that, The proton exchange membrane battery also includes titanium felt; A second resin frame is provided around the titanium felt; The titanium felt is disposed between the membrane electrode and the anode bipolar plate.

7. The proton exchange membrane battery according to claim 6, characterized in that, Also includes: fastener; Holes are provided at corresponding positions of the cathode end plate, the cathode bipolar plate, the first resin frame, the second resin frame, the anode bipolar plate, and the anode end plate; The fasteners are used to pass through the holes of the cathode end plate, the cathode bipolar plate, the first resin frame, the second resin frame, the anode bipolar plate, and the anode end plate in sequence for fixation.

8. The proton exchange membrane battery according to claim 1, characterized in that, The membrane electrode comprises a proton exchange membrane and a catalyst.

9. The proton exchange membrane battery according to claim 1, characterized in that, The anode plate is made of transparent acrylic.

10. The proton exchange membrane battery according to any one of claims 1-9, characterized in that, The proton exchange membrane battery is a single cell.

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