Air-cooled fuel cell chips and air-cooled fuel cell stacks

Abstract

The present invention discloses an air-cooled fuel cell sheet and an air-cooled fuel cell stack. The air-cooled fuel cell sheet includes an air intake plate and a bipolar plate. The air intake plates are located at both ends of the bipolar plate, and the thickness of the air intake plates is greater than the thickness of the bipolar plates. The air-cooled fuel cell stack includes multiple air-cooled fuel cell sheets stacked on each other, and a heat dissipation channel is provided between two adjacent layers of air-cooled fuel cell sheets. The air-cooled fuel cell sheet and air-cooled fuel cell stack of the present invention are formed by stacking the air-cooled fuel cell sheets to form an air-cooled fuel cell stack, and heat dissipation channels are formed between adjacent air-cooled fuel cell sheets. When the air-cooled fuel cell stack is in operation, air can flow through the heat dissipation channel to carry away the heat generated by the reaction of the air-cooled fuel cell stack, thereby controlling the reaction temperature of the air-cooled fuel cell stack without affecting the humidity of the reaction of the air-cooled fuel cell stack.

Description

Technical Field

[0001] The invention relates to an air-cooled fuel cell sheet and an air-cooled fuel cell stack. Background Art

[0002] A fuel cell stack is a device that introduces hydrogen and oxygen from two sides into the cell to react and generate electricity. The fuel cell stack generates heat during the reaction process. To promptly dissipate this heat and maintain a stable temperature within the stack, existing fuel cell stacks typically control the amount of air flowing into the reaction zone within the fuel cell to maintain a stable temperature within the fuel cell. However, to maintain a stable temperature within the fuel cell, traditional air-cooled stacks share a cathode side for both oxygen supply and heat dissipation, making it impossible to independently control the oxygen supply. This, in turn, results in an inability to maintain humidity within the reaction zone within the fuel cell. Excessively low or high humidity can reduce the fuel cell's reaction efficiency and, in severe cases, even cause the fuel cell to burn out. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect in the prior art that the oxygen supply cannot be controlled independently because the air-cooled fuel cell stack shares a common cathode side for supplying and cooling. An air-cooled fuel cell sheet and an air-cooled fuel cell stack are provided.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] An air-cooled fuel cell sheet comprises an air intake plate and a bipolar plate. The air intake plates are located at both ends of the bipolar plate, and the thickness of the air intake plates is greater than that of the bipolar plates.

[0006] In this solution, by setting the thickness of the air intake plate of the air-cooled fuel cell sheet to be greater than the thickness of the bipolar plate, when the air-cooled fuel cell sheet is working, air can flow through the space on both sides of the bipolar plate to remove the heat generated by the battery reaction on the bipolar plate, thereby controlling the reaction temperature on the bipolar plate without affecting the humidity of the reaction on the bipolar plate.

[0007] Preferably, the air-cooled fuel cell sheet further includes a heat sink, and the heat sink is fixedly connected to the bipolar plate.

[0008] In this solution, by providing a heat sink fixedly connected to the bipolar plate, the heat on the bipolar plate is dissipated outward through the heat sink, further improving the heat dissipation efficiency of the bipolar plate.

[0009] Preferably, the air-cooled fuel cell sheet further includes a conductive plate, the heat dissipation plate is welded to the conductive plate, and an end portion of the conductive plate is disposed between the air intake plate and the bipolar plate.

[0010] In this solution, the heat dissipation plate and the conductive plate are fixedly connected by welding the heat dissipation plate to the conductive plate.

[0011] Preferably, the air intake plate is made of rubber.

[0012] In this solution, the air intake plate is made of rubber, which can be easily processed into the required shape through injection molding, reducing the manufacturing cost of the air intake plate; in addition, when two layers of rubber are stacked on each other, the air tightness between rubber and rubber is better than graphite, reducing gas leakage within the air-cooled fuel cell chip.

[0013] Preferably, a positioning hole is provided on the air intake plate.

[0014] In this solution, positioning holes are opened on the rubber air intake plate, and the rubber air intake plate is injection molded. Compared with the original machined air intake plate, the cost of opening the positioning holes is lower; in addition, when the positioning holes are opened on the rubber air intake plate, the rubber itself will not be deformed, and the external dimensions of the air intake plate will not be affected. After the positioning holes are opened on the air intake plate, when the air-cooled fuel cell sheet is subsequently assembled into an air-cooled fuel cell stack, only the positioning holes and the positioning rods need to be fixed and installed, and there is no need to set a positioning mechanism on the periphery of the air-cooled fuel cell sheet, thereby reducing the assembly cost of the air-cooled fuel cell sheet.

[0015] Preferably, an air flow channel is provided on the bipolar plate, a first air flow port is opened on the air intake plate, the first air flow port passes through the air intake plate, the first air flow port is connected to the air flow channel, the air intake plate has a first surface and a second surface, a sealing strip is provided around the first air flow port on the first surface, the sealing strip protrudes from the first surface in a direction away from the first surface, a sealing groove is provided around the first air flow port on the second surface, the sealing groove is recessed from the second surface toward the first surface, and the sealing strip and the sealing groove match.

[0016] In this solution, by providing sealing strips and sealing grooves on both sides of the first air flow outlet on the air intake plate, when the air-cooled fuel cell sheets are subsequently assembled into an air-cooled fuel cell stack, the sealing strips and sealing grooves on the two adjacent layers of air-cooled fuel cell sheets match each other, thereby improving the air tightness between the air-cooled fuel cell sheets and reducing gas leakage.

[0017] Preferably, the air-cooled fuel cell sheet also includes an air guide plate, one end of the air guide plate is connected to the bipolar plate, the other end of the air guide plate is connected to the air intake plate, a second air flow port is provided on the air intake plate, a hydrogen flow channel is provided on the bipolar plate, and the second air flow port and the hydrogen flow channel are connected through the air guide plate.

[0018] In this solution, an air guide plate is provided to guide the gas from the second air flow port into the hydrogen channel on the bipolar plate, thereby improving the air tightness of the air intake plate and the bipolar plate.

[0019] An air-cooled fuel cell stack comprises a plurality of air-cooled fuel cell sheets stacked on each other, and a heat dissipation channel is provided between two adjacent layers of the air-cooled fuel cell sheets.

[0020] In this solution, by setting the thickness of the air intake plate of the air-cooled fuel cell sheet to be greater than the thickness of the bipolar plate, after the air-cooled fuel cell sheets are stacked to form an air-cooled fuel cell stack, heat dissipation channels are formed between adjacent air-cooled fuel cell sheets. When the air-cooled fuel cell stack is working, air can flow through the heat dissipation channels to carry away the heat generated by the reaction of the air-cooled fuel cell stack, thereby controlling the reaction temperature of the air-cooled fuel cell stack without affecting the humidity of the air-cooled fuel cell stack reaction.

[0021] Preferably, the air-cooled fuel cell stack further includes a heat sink, which is sandwiched between two adjacent layers of the air-cooled fuel cell sheets, and the heat dissipation channel is formed on the heat sink.

[0022] In this solution, by providing a heat dissipation plate fixedly connected to the air-cooled fuel cell sheet, the heat on the air-cooled fuel cell sheet is dissipated outward through the heat dissipation plate, thereby further improving the heat dissipation efficiency.

[0023] Preferably, the heat dissipation plate includes a heat transfer portion, and the heat transfer portion is closely attached to the air-cooled fuel cell sheet.

[0024] In this solution, a heat transfer portion fixedly connected to the air-cooled fuel cell sheet is provided, and the heat on the air-cooled fuel cell sheet is dissipated outward through the heat transfer portion, further improving the heat dissipation efficiency.

[0025] Preferably, the heat dissipation plate further includes a plurality of heat dissipation parts, the heat dissipation parts are connected to the heat transfer parts, and the heat dissipation channels are formed between the heat dissipation parts.

[0026] In this solution, a plurality of heat dissipation parts are provided to be connected to the heat transfer part, thereby improving the heat dissipation efficiency of the heat dissipation plate.

[0027] Preferably, the heat dissipation plate is a corrugated plate.

[0028] In this solution, a corrugated plate is selected as the heat dissipation plate. The corrugated plate is a standard part and can be purchased from the market, thereby reducing costs.

[0029] Preferably, the heat dissipation channel includes an air inlet end and an air outlet end, and the air inlet end and the air outlet end are respectively located on two sides of the air-cooled fuel cell stack.

[0030] In this solution, the air inlet and outlet ends of the heat dissipation channel are respectively arranged at both ends of the air-cooled fuel cell stack, so that the cooled air can pass through the heat dissipation channel to remove heat, reduce the resistance of air flow, and improve the heat dissipation efficiency of the heat dissipation channel.

[0031] The positive progress effect of the present invention is:

[0032] The air-cooled fuel cell sheet and air-cooled fuel cell stack of the present invention are formed by setting the thickness of the air intake plate of the air-cooled fuel cell sheet to be greater than the thickness of the bipolar plate. After the air-cooled fuel cell sheets are stacked to form an air-cooled fuel cell stack, heat dissipation channels are formed between adjacent air-cooled fuel cell sheets. When the air-cooled fuel cell stack is working, air can flow through the heat dissipation channels to carry away the heat generated by the reaction of the air-cooled fuel cell stack, thereby controlling the reaction temperature of the air-cooled fuel cell stack without affecting the humidity of the air-cooled fuel cell stack reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 Schematic diagram of an air-cooled fuel cell sheet without a heat sink according to the present invention.

[0034] Figure 2 Schematic diagram of an air-cooled fuel cell sheet with a heat sink according to the present invention.

[0035] Figure 3 This is a schematic diagram of the first side of the air intake plate of the air-cooled fuel cell sheet of the present invention.

[0036] Figure 4 This is a schematic diagram of the second side of the air intake plate of the air-cooled fuel cell sheet of the present invention.

[0037] Figure 5 This is a schematic diagram from a first perspective of an air-cooled fuel cell stack of the present invention.

[0038] Figure 6 This is a schematic diagram from a second perspective of the air-cooled fuel cell stack of the present invention.

[0039] Description of reference numerals:

[0040] Air-cooled fuel cell chip 100

[0041] Air intake plate 11

[0042] Positioning hole 111

[0043] First air flow outlet 112

[0044] First side 113

[0045] Second side 114

[0046] Sealing strip 115

[0047] Sealing groove 116

[0048] Bipolar plate 12

[0049] Heat sink 13

[0050] Heat transfer part 131

[0051] heat dissipation unit 132

[0052] Conductive plate 14

[0053] Air guide plate 15

[0054] Air-cooled fuel cell stack 200

[0055] Heat dissipation channel 21

[0056] Inlet end 211

[0057] Gas outlet 212 DETAILED DESCRIPTION

[0058] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0059] like Figure 1 As shown, the present invention provides an air-cooled fuel cell chip 100. The air-cooled fuel cell chip 100 includes an air intake plate 11 and a bipolar plate 12. One air-cooled fuel cell chip 100 includes two air intake plates 11 and one bipolar plate 12. The two air intake plates 11 are respectively located at the two ends of the bipolar plate 12. The air intake plates 11 are used to introduce reaction gases into the bipolar plate 12. The thickness of the air intake plate 11 is greater than the thickness of the bipolar plate 12, and the two air intake plates 11 located at the two ends of the bipolar plate 12 have the same thickness. With such an arrangement, when multiple air-cooled fuel cell chips 100 are stacked together to form an air-cooled fuel cell stack 200, the air intake plates 11 of adjacent air-cooled fuel cell chips 100 abut against each other, and heat dissipation channels 21 are formed between the bipolar plates 12 of adjacent air-cooled fuel cell chips 100. The heat dissipation channels 21 are used to allow air to flow through to remove heat generated by the reaction on the bipolar plate 12. This creates separate air cooling channels for the bipolar plates 12, separating the air flow for heat dissipation from the bipolar plates 12 and the air flow for the reaction of the bipolar plates 12. This ensures that the air dissipating heat from the bipolar plates 12 does not affect parameters such as the humidity inside the bipolar plates 12, which could cause changes in the fuel cell reaction rate or an increase in the temperature inside the bipolar plates 12.

[0060] like Figure 2 As shown, in this embodiment, the air-cooled fuel cell chip 100 further includes a heat sink 13, which is a long strip of metal. The heat sink 13 is fixedly connected to the bipolar plate 12, and the section of the bipolar plate 12 between the air intake plates 11 at both ends is covered by the heat sink 13. The heat sink 13 has the same width as the bipolar plate 12, and the two ends of the heat sink 13 along the length direction are respectively against the two air intake plates 11, so that the heat sink 13 covers the bipolar plate 12 with the maximum area. This transfers the heat from the bipolar plate 12 to the heat sink 13 as much as possible, thereby improving the heat dissipation efficiency of the heat sink 13.

[0061] In other embodiments, the air-cooled fuel cell chip 100 may not be provided with a heat sink 13 , and the heat generated by the reaction in the bipolar plate 12 may be removed only by air flowing through both sides of the bipolar plate 12 and exchanging heat with the bipolar plate 12 .

[0062] The air-cooled fuel cell sheet 100 also includes a conductive plate 14. This plate is located within the air-cooled fuel cell sheet 100 and is used to conduct the electrical energy generated by the reaction in the bipolar plate 12 out of the air-cooled fuel cell sheet 100. Heat generated by the reaction in the bipolar plate 12 is transferred to the conductive plate 14. In this embodiment, the heat sink 13 is welded to the conductive plate 14, thereby improving the reliability of the connection between the heat sink 13 and the conductive plate 14. This welding process also reduces the thermal resistance between the heat sink 13 and the conductive plate 14, improving the heat transfer efficiency from the conductive plate 14 to the heat sink 13, and thus improving the heat dissipation efficiency of the heat sink 13. The ends of the conductive plate 14 are located between the air intake plate 11 and the bipolar plate 12, with both ends of the conductive plate 14 located between the air intake plate 11 and the bipolar plate 12.

[0063] In other embodiments, the heat dissipation plate 13 may not be welded to the conductive plate 14 , but the heat dissipation plate 13 and the conductive plate 14 may be pressed onto the bipolar plate 12 by the air intake plate 11 .

[0064] In this embodiment, the air intake plate 11 is made of rubber. The air intake plate 11 made of rubber can be injection molded. After the rubber mold is manufactured, the air intake plates 11 are mass-produced by mold injection molding. Compared with the air intake plate 11 that requires machining, the injection-molded rubber air intake plate 11 can reduce the manufacturing cost of the air intake plate 11.

[0065] In other embodiments, the air intake plate 11 may also be made of graphite.

[0066] In this embodiment, the air intake plate 11 is provided with positioning holes 111. Two positioning holes 111 are provided on a single positioning plate. These circular holes 111 mate with positioning rods during assembly. When assembling the air-cooled fuel cell stack 200, the positioning rods are positioned according to the dimensions of the positioning holes 111. First, the bipolar plate 12 is installed in the desired position. The conductive plate 14 and the heat sink 13 are then mounted on the bipolar plate 12. Finally, the air intake plate 11 is installed along the axial direction of the positioning rods, and the conductive plate 14 is pressed against the bipolar plate 12. Finally, the positions of the bipolar plate 12 and the conductive plate 14 are fine-tuned to complete the assembly of the air-cooled fuel cell stack 100. The provision of positioning holes 111 allows the positioning of the air intake plate 11 to be achieved during assembly using only the positioning rods. Furthermore, the provision of positioning holes 111 on the rubber-made air intake plate 11 does not substantially increase the manufacturing cost of the air intake plate 11. This eliminates the need for a fixture wrapped around the side of the air intake plate 11 to secure the air intake plate 11, as is required in conventional assembly processes. Therefore, by providing the positioning holes 111 on the air intake plate 11 , the structure of the positioning fixture required for assembling the air-cooled fuel cell sheet 100 can be simplified.

[0067] The bipolar plate 12 is provided with an air flow channel (not shown in the figure), which is used for air to flow in. The oxygen in the air reacts with the hydrogen flowing in through the hydrogen flow channel (not shown in the figure) on the other side to generate electricity and output it. Figure 3 and Figure 4 As shown, a first air flow opening 112 is provided on the air intake plate 11. The first air flow opening 112 passes through the air intake plate 11 and is connected to the air flow channel. The first air flow opening 112 is used to deliver air to the air flow channel. The air intake plate 11 has a first surface 113 and a second surface 114. The first surface 113 and the second surface 114 are two opposite surfaces on the air intake plate 11. A sealing strip 115 is provided around the first air flow opening 112 on the first surface 113. The sealing strip 115 protrudes from the first surface 113 in a direction away from the first surface 113. The first air flow opening 112 is a rectangular opening. The sealing strip 115 is provided along the edges of three sides of the first air flow opening 112. No sealing strip 115 is provided on the side of the first air flow opening 112 close to the air flow channel, so that the air in the first air flow opening 112 can flow into the air flow channel. A sealing groove 116 is provided on the second surface 114 around the first airflow opening 112. The sealing groove 116 is recessed from the second surface 114 toward the first surface 113. The depth of the sealing groove 116 is slightly greater than or equal to the height of the sealing strip 115. The shapes of the sealing strip 115 and the sealing groove 116 match. After the air-cooled fuel cell sheets 100 are stacked and assembled into the air-cooled fuel cell stack 200, the first and second surfaces 113, 114 of the adjacent air intake plates 11 are tightly attached to each other, and the sealing strip 115 is embedded in the sealing groove 116, minimizing leakage of air flowing in through the first airflow opening 112.

[0068] The air-cooled fuel cell chip 100 also includes an air guide plate 15. One end of the air guide plate 15 is connected to the bipolar plate 12, and the other end is connected to the air inlet plate 11. The air inlet plate 11 has a second air flow port, and the bipolar plate 12 has a hydrogen flow channel. The second air flow port on the air inlet plate 11 is used to deliver hydrogen to the bipolar plate 12. Because hydrogen has a small molecular weight and is more prone to leakage, the additional air guide plate 15 is provided to guide the hydrogen and improve the sealing of the air-cooled fuel cell chip 100. The second air flow port and the hydrogen flow channel are connected through the air guide plate 15.

[0069] like Figure 5 As shown, the present invention also provides an air-cooled fuel cell stack 200. The air-cooled fuel cell stack 200 includes a plurality of air-cooled fuel cell sheets 100 stacked on each other. A heat dissipation channel 21 is provided between two adjacent layers of air-cooled fuel cell sheets 100. The heat dissipation channel 21 is formed by the gap between the bipolar plates 12 of the adjacent air-cooled fuel cell sheets 100. When the air-cooled fuel cell stack 200 is in operation, the fan blows purified air into the heat dissipation channel 21. The air exchanges heat with the bipolar plates 12 in the heat dissipation channel 21, removes the heat from the bipolar plates 12, and plays a role in heat dissipation and temperature reduction. This avoids the problem of heat dissipation for the bipolar plates 12 by the air flowing into the bipolar plates 12, which makes it difficult to control the reaction humidity in the bipolar plates 12.

[0070] In this embodiment, the air-cooled fuel cell stack 200 also includes a heat sink 13. Made of metal, the metal has excellent thermal conductivity, which reduces the thermal resistance between the heat sink 13 and the bipolar plate 12, improving heat dissipation. The heat sink 13 is sandwiched between two adjacent layers of air-cooled fuel cell sheets 100, allowing both layers of air-cooled fuel cell sheets 100 to transfer heat to the heat sink 13. Heat dissipation channels 21 are formed on the heat sink 13. Air in the heat dissipation channels 21 exchanges heat with the heat sink 13, removing heat from the heat sink 13.

[0071] In other solutions, the air-cooled fuel cell stack 200 may not be provided with the heat dissipation plate 13 , and the bipolar plates 12 may be cooled and dissipated by direct heat exchange between the air and the bipolar plates 12 .

[0072] The heat sink 13 includes a heat transfer portion 131 . In this embodiment, the heat transfer portion 132 is a flat plate disposed at intervals. The heat transfer portion 131 is in close contact with the air-cooled fuel cell chip 100 , thereby transferring heat from the air-cooled fuel cell chip 100 to the heat transfer portion 132 .

[0073] In other embodiments, the heat dissipation portion 132 may also be a whole metal flat plate, thereby increasing the contact area between the heat dissipation portion 132 and the bipolar plate 12 and reducing the thermal resistance between the heat dissipation portion 132 and the air-cooled fuel cell sheet 100 .

[0074] The heat sink 13 also includes multiple heat dissipation sections 132 connected to the heat transfer section 131. These sections 132 increase the heat dissipation area of ​​the heat sink 13, reduce the thermal resistance between the heat sink 13 and the air, and improve the heat exchange efficiency of the heat sink 13. Heat dissipation channels 21 are formed between the heat dissipation sections 132. These channels 21 allow air to flow through them.

[0075] In this embodiment, the heat sink 13 is a corrugated plate, which can be purchased on the market, reducing the overall cost of the air-cooled fuel cell stack 200. In other embodiments, the heat sink 13 can also be a steel plate or a plate made of other metal materials.

[0076] like Figure 6 As shown, the heat dissipation channel 21 includes an air inlet end 211 and an air outlet end 212. The axis of the heat dissipation channel 21 is a straight line, and both ends of the heat dissipation channel 21 are open, with the openings at the two ends of the heat dissipation channel 21 being the air inlet end 211 and the air outlet end 212, respectively. The air inlet end 211 and the air outlet end 212 are located on either side of the air-cooled fuel cell stack 200, so that air enters the heat dissipation channel 21 from the air inlet end 211 and then flows out of the heat dissipation channel 21 from the air outlet end 212 at the other end of the heat dissipation channel 21. This arrangement minimizes the resistance to air flow in the heat dissipation channel 21, improves the efficiency of air flow in the heat dissipation channel 21, and improves the heat exchange efficiency between the air and the heat dissipation plate 13.

[0077] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of the present invention.

Claims

1. An air-cooled fuel cell chip, characterized in that: The air-cooled fuel cell sheet includes an air intake plate and a bipolar plate. The air intake plate is located at both ends of the bipolar plate, and the thickness of the air intake plate is greater than the thickness of the bipolar plate.

2. The air-cooled fuel cell sheet according to claim 1, wherein: The air-cooled fuel cell sheet further includes a heat sink, which is fixedly connected to the bipolar plate.

3. The air-cooled fuel cell sheet according to claim 2, wherein: The air-cooled fuel cell sheet further includes a conductive plate, the heat dissipation plate is welded to the conductive plate, and an end portion of the conductive plate is disposed between the air intake plate and the bipolar plate.

4. The air-cooled fuel cell sheet according to claim 1, wherein: The air intake plate is made of rubber.

5. The air-cooled fuel cell sheet according to claim 4, wherein: The air intake plate is provided with a positioning hole.

6. The air-cooled fuel cell sheet according to claim 4, wherein: An air flow channel is provided on the bipolar plate, and a first air flow port is opened on the air intake plate. The first air flow port passes through the air intake plate and is connected to the air flow channel. The air intake plate has a first surface and a second surface. A sealing strip is provided around the first air flow port on the first surface, and the sealing strip protrudes from the first surface toward the direction away from the first surface. A sealing groove is provided around the first air flow port on the second surface, and the sealing groove is recessed from the second surface toward the first surface. The sealing strip and the sealing groove match each other.

7. The air-cooled fuel cell sheet according to claim 4, wherein: The air-cooled fuel cell sheet also includes an air guide plate, one end of which is connected to the bipolar plate, and the other end of which is connected to the air intake plate. A second air flow port is provided on the air intake plate, and a hydrogen flow channel is provided on the bipolar plate. The second air flow port and the hydrogen flow channel are connected through the air guide plate.

8. An air-cooled fuel cell stack, characterized in that: The air-cooled fuel cell stack comprises a plurality of stacked air-cooled fuel cell sheets according to any one of claims 1 to 7, wherein a heat dissipation channel is provided between two adjacent layers of the air-cooled fuel cell sheets.

9. The air-cooled fuel cell stack according to claim 8, wherein: The air-cooled fuel cell stack further includes a heat dissipation plate, which is sandwiched between two adjacent layers of the air-cooled fuel cell sheets. The heat dissipation channel is formed on the heat dissipation plate.

10. The air-cooled fuel cell stack according to claim 9, wherein: The heat dissipation plate includes a heat transfer portion, and the heat transfer portion is closely attached to the air-cooled fuel cell sheet.

11. The air-cooled fuel cell stack according to claim 10, wherein: The heat dissipation plate further includes a plurality of heat dissipation parts, the heat dissipation parts are connected to the heat transfer parts, and the heat dissipation channels are formed between the heat dissipation parts.

12. The air-cooled fuel cell stack according to any one of claims 9 to 11, wherein: The heat dissipation plate is a corrugated plate.

13. The air-cooled fuel cell stack according to claim 8, wherein: The heat dissipation channel includes an air inlet end and an air outlet end, and the air inlet end and the air outlet end are respectively located on two sides of the air-cooled fuel cell stack.

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