CN214152944U

CN214152944U - Fuel cell stack and cathode plate thereof

Info

Publication number: CN214152944U
Application number: CN202120311062.XU
Authority: CN
Inventors: 陆维; 耿珺; 梅武; 陈洵; 胡皓然; 魏刚; 刘希
Original assignee: Spic Hydrogen Energy Technology Development Co Ltd
Current assignee: Spic Hydrogen Energy Technology Development Co Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-09-07
Anticipated expiration: 2031-02-03

Abstract

The utility model relates to a fuel cell technical field, concretely relates to fuel cell stack and negative plate thereof. The negative plate comprises a first body, wherein a plurality of first through grooves and a plurality of second through grooves are formed in the first body, each of the first through grooves and the second through grooves extends along the width direction of the first body, the first through grooves and the second through grooves are alternately arranged along the length direction of the first body at intervals, the direction of the notches of the first through grooves is opposite to that of the notches of the second through grooves, and a plurality of through holes at least communicated with the first through grooves are formed in the first body. Utilize the utility model discloses a fuel cell stack of negative plate has advantages such as the radiating effect is good, light in weight, small, convenient manufacturing and working property are good.

Description

Fuel cell stack and cathode plate thereof

Technical Field

The utility model relates to a fuel cell technical field, concretely relates to fuel cell stack and negative plate thereof.

Background

Since the voltage of the hydrogen fuel cell is small, the fuel cell is generally formed by stacking the cells. The unit cell is constituted by a cathode plate, an anode plate, and a membrane electrode assembly (including a membrane electrode assembly MEA and a diffusion layer) disposed between the cathode plate and the anode plate. The polar plate is also called a current collecting plate and is one of the important parts of the hydrogen fuel cell, and the function of the polar plate is to provide a reaction gas channel and establish a current path between a cathode and an anode.

The energy conversion efficiency of the fuel cell is about 50%, the rest energy is dissipated in the form of heat energy, and if the heat energy cannot be dissipated in time, the temperature of the fuel cell stack is too high, so that the service life of the fuel cell stack is reduced. Therefore, in order to satisfy the heat dissipation requirement of the fuel cell and to maintain the temperature of the fuel cell within a certain operating range, the unit cell needs to be provided with a coolant flow path. The cooling medium may be air or liquid, and a fuel cell using air as the cooling medium is generally referred to as an air-cooled fuel cell. The air-cooled fuel cell in the related art has the problems of large volume, heavy weight, large manufacturing difficulty, poor heat dissipation effect and the like.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a can strengthen the negative plate of fuel cell stack radiating effect.

The embodiment of the utility model provides a fuel cell stack that radiating effect is good.

The utility model discloses a negative plate includes first body, be equipped with a plurality of first logical grooves and a plurality of second logical groove on the first body, first logical groove with each in the second logical groove is followed the width direction of first body extends, and is a plurality of first logical groove is a plurality of the second logical groove is followed the length direction of first body is just interval setting in turn, the notch in first logical groove with the orientation of the notch in second logical groove is opposite, be equipped with on the first body at least with a plurality of through-holes that first logical groove communicates.

Utilize the utility model discloses a fuel cell stack of negative plate has advantages such as the radiating effect is good, light in weight, small, convenient manufacturing and working property are good.

In some embodiments, the first through slot comprises a slot bottom wall and a slot side wall, and the through hole is disposed on the slot bottom wall.

In some embodiments, the first through slot comprises a slot bottom wall and a slot side wall, the through hole being disposed on the slot side wall.

In some embodiments, the first body is a rectangular corrugated plate, and each of the first and second through slots is a U-shaped slot.

In some embodiments, a plurality of the through holes are arranged in a rectangular array on the first body.

In some embodiments, the first body is provided with a first reaction zone, a first fuel gas inlet and a first fuel gas outlet, the first fuel gas inlet and the first fuel gas outlet are arranged at intervals, each of the first fuel gas inlet and the first fuel gas outlet penetrates through the first body along the thickness direction of the first body, and each of the first fuel gas inlet and the first fuel gas outlet is arranged in the first reaction zone.

The utility model discloses a fuel cell stack includes a plurality of monocells, a plurality of said monocells stack and arrange and connect in series along the direction of height of said fuel cell stack in proper order, said monocell includes anode plate, negative plate and membrane electrode assembly, said membrane electrode assembly is set up between said anode plate and said negative plate, the negative plate of one of the adjacent monocells links to each other with the anode plate of another one;

the cathode plate comprises a first body, wherein a plurality of first through grooves and a plurality of second through grooves are formed in the first body, the first through grooves extend along the width direction of the first body, the second through grooves extend along the width direction of the first body, the first through grooves and the second through grooves are alternately arranged along the length direction of the first body at intervals, the direction of the notches of the first through grooves is opposite to that of the notches of the second through grooves, and a plurality of through holes at least communicated with the first through grooves are formed in the first body;

the anode plate comprises a second body, a second reaction zone, a second fuel gas inlet and a second fuel gas outlet are arranged on the second body, each of the second fuel gas inlet and the second fuel gas outlet penetrates through the second body along the thickness direction of the second body, and each of the second fuel gas inlet and the second fuel gas outlet is arranged at intervals.

The fuel cell stack of the utility model has the advantages of good heat dissipation effect, light weight, small volume, convenient manufacture, good working performance and the like.

In some embodiments, each of the second fuel gas inlet and the second fuel gas outlet is disposed within the second reaction zone.

Drawings

Fig. 1 is an exploded view schematically illustrating a fuel cell stack according to an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a single cell according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of the anode plate of fig. 2.

Fig. 4 is a schematic view of the construction of the cathode plate of fig. 2.

Fig. 5 is an enlarged view at a in fig. 4.

Fig. 6 is a schematic view of the structure of the cathode plate and the membrane electrode assembly of fig. 2.

Fig. 7 is a schematic structural view of a cathode plate and a membrane electrode assembly of a single cell according to another embodiment of the present invention.

Fig. 8 is a schematic view of the structure of the cathode plate and the membrane electrode assembly of the single cell.

Reference numerals: a fuel cell stack 1000; a single cell 100; an anode plate 110; a second body 1100; a second fuel gas inlet 1101; a second fuel gas outlet 1102; a cathode plate 120; a first body 1200; a first through groove 1201; a second through-slot 1202; a first channel 1204; a second channel 1205; a through-hole 1206; a first fuel gas inlet 1207; a first fuel gas outlet 1208; a membrane electrode assembly 130; a third fuel gas inlet 1301; a third fuel gas outlet 1302.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 to 7, a fuel cell stack according to an embodiment of the present invention includes a plurality of unit cells 100, and the plurality of unit cells 100 are sequentially stacked and arranged in series in a height direction of the fuel cell stack 1000. The single cell 100 includes an anode plate 110, a cathode plate 120, and a membrane electrode assembly 130, and the membrane electrode assembly 130 is disposed between the anode plate 110 and the cathode plate 120. The cathode plate 120 of one of the adjacent single cells 100 is connected to the anode plate 110 of the other.

The cathode plate 120 includes a first body 1200, and a plurality of first through grooves 1201 and a plurality of second through grooves 1202 are provided on the first body 1200. The first through grooves 1201 extend in the width direction of the first body 1200, the second through grooves 1202 extend in the width direction of the first body 1200, and the plurality of first through grooves 1201 and the plurality of second through grooves 1202 are alternately and spaced apart in the length direction of the first body 1200. The notches of the first through groove 1201 and the second through groove 1202 are oriented in opposite directions, and the first body 1200 is provided with a plurality of through holes 1206 communicating with at least the first through groove 1201.

In the related art, the cathode plate of the fuel cell stack using air cooling is provided with a groove, which forms a first channel with the membrane electrode assembly, the first channel being for air circulation of the oxidizing gas. Simultaneously set up the corrugated sheet on the negative plate, the slot and the negative plate of this corrugated sheet form the second passageway, and the second passageway supplies the circulation of air as cooling medium. On one hand, the heat generated during the operation of the fuel cell stack needs to be transferred to the corrugated plate through the cathode plate, then the heat is transferred to the air in the second channel, and the air in the second channel is utilized to be taken out of the fuel cell stack, so that the problem of poor heat dissipation effect exists. On the other hand, the use of corrugated sheets not only increases the weight and thickness of the fuel cell stack, but also is disadvantageous for the manufacture of the fuel cell stack. In addition, the corrugated plate is contacted with the cathode plate, so that the contact resistance of the fuel cell stack is increased, and the problems of high energy consumption and high heat generation quantity exist during the operation of the fuel cell stack.

As shown in fig. 2, the notches of the first through grooves 1201 of the cathode plates 120 of the fuel cell stack 1000 according to the embodiment of the present invention are closed by the corresponding membrane electrode assemblies 130 to form first channels 1204, and the notches of the second through grooves 1202 are closed by the anode plates 110 of the unit cells 100 adjacent to the cathode plates 120 to form second channels 1205. The first passage 1204 is through which air as an oxidizing gas flows, and the air as the oxidizing gas enters the first passage 1204 from one side in the width direction of the first body 1200 and flows out from the other side in the width direction of the first body 1200. The second passage 1205 is through which air as a cooling medium flows, and the air as the cooling medium enters the first passage 1204 from one side in the width direction of the first body 1200 and flows out from the other side in the width direction of the first body 1200.

Therefore, the heat generated when the fuel cell stack 1000 operates can be taken out of the fuel cell stack 1000 by using not only the air in the first passage 1204 as the oxidizing gas but also the air in the second passage 1205 through the cathode plate 120, and taken out of the fuel cell stack 1000 by using the air in the second passage 1205, and the heat dissipation effect is better than the related art in which the heat generated by the fuel cell stack needs to sequentially pass through the cathode plate, the corrugated plate, and the air in the second passage.

In addition, the through holes 1206 communicated with the first through grooves 1201 can play a role of turbulent flow for the air in the second channels 1204, so that not only can the heat exchange performance be enhanced, but also the air in the second channels 1204 can be fully diffused in the membrane electrode assembly 130, and further the working performance of the fuel cell stack 1000 is improved.

Also, the second channel 1205 is directly formed by the cathode plate 120 and the anode plate 110, and compared to the related art in which the second channel is formed by a corrugated sheet provided on the cathode plate, there is no need to provide a corrugated sheet on the cathode plate, so that the weight of the fuel cell stack 1000 can be reduced, the volume of the fuel cell stack 1000 can be reduced, and the manufacturing of the fuel cell stack 1000 is facilitated. In addition, the provision of the plurality of through holes 1206 may further reduce the weight of the fuel cell stack 1000, and improve the mass power density of the fuel cell stack 1000. Since the corrugated sheet is omitted, the contact resistance of the fuel cell stack 1000 is reduced, and thus the energy consumption and heat generation during the operation of the fuel cell stack 1000 are reduced, and the operation performance of the fuel cell stack 1000 is improved.

Therefore, the fuel cell stack 1000 according to the embodiment of the present invention has the advantages of good heat dissipation effect, light weight, small volume, convenient manufacturing, good working performance, etc. The fuel cell stack 1000 using the cathode plate 120 according to the embodiment of the present invention has the advantages of good heat dissipation effect, light weight, small volume, convenient manufacture, good working performance, etc.

As shown in fig. 1 and 2, a fuel cell stack 1000 according to an embodiment of the present invention includes a plurality of unit cells 100, and the plurality of unit cells 100 are sequentially stacked and arranged in series in a height direction of the fuel cell stack 1000.

As shown in fig. 2, the single cell 100 includes an anode plate 110, a cathode plate 120, and a membrane electrode assembly 130, and the membrane electrode assembly 130 is disposed between the anode plate 110 and the cathode plate 120. The cathode plate 120 of one of the adjacent single cells 100 is connected to the anode plate 110 of the other.

The length of anode plate 110 is equal to the length of cathode plate 120, and the width of anode plate 110 is equal to the width of cathode plate 120. The anode plate 110 and the cathode plate 120 are made of sheet metal materials, and the anode plate 110 and the cathode plate 120 can be formed by stamping, rolling or both stamping and rolling. It is suitable for mass production, and reduces the cost of the fuel cell stack 1000.

As shown in fig. 1-3, the anode plate 110 has a stamped gas flow channel extending along the length direction thereof, and the anode plate 110 includes a second body 1100, and the second body 1100 is provided with a second reaction zone, a second fuel gas inlet 1101 and a second fuel gas outlet 1102. Each of the second fuel gas inlets 1101 and the second fuel gas outlets 1102, which are spaced apart, penetrates the second body 1100 in the thickness direction of the second body 1100. It is understood that the second reaction zone is a portion of the anode plate 110 that may participate in the anode reaction. The second fuel gas inlet 1101 serves as a fuel gas inlet, and the second fuel gas outlet 1102 serves as a fuel gas outlet.

Preferably, each of the second fuel gas inlet 1101 and the second fuel gas outlet 1102 is disposed within the second reaction zone. Specifically, parallel gas flow channels are provided between the second fuel gas inlet 1101 and the second fuel gas outlet 1102 to allow the anode side fuel gas, such as hydrogen, to flow therethrough. Gas flow channels are also provided between the second fuel gas inlet 1101 and the corresponding end of the anode plate 110 and between the second fuel gas outlet 1102 and the corresponding end of the anode plate, and the gas flow channels are formed by discontinuous projections which are regularly arranged. Thereby, the active area of the fuel cell stack 1000 can be increased, and additional space is not occupied, and additional flow distribution regions do not need to be opened up, so that the volume and weight of the fuel cell stack 1000 can be reduced.

As shown in fig. 4 to 7, the cathode plate 120 includes a first body 1200, and a plurality of first through grooves 1201 and a plurality of second through grooves 1202 are formed on the first body 1200. .

Preferably, as shown in fig. 1 and 2, a first reaction zone, a first fuel gas inlet 1207 and a first fuel gas outlet 1208 are provided on the first body 1200, the first fuel gas inlet 1207 and the first fuel gas outlet 1208 are arranged at intervals, each of the first fuel gas inlet 1207 and the first fuel gas outlet 1208 penetrates through the first body 1200 along the thickness direction of the first body 1200, and each of the first fuel gas inlet 1207 and the first fuel gas outlet 1208 is provided in the first reaction zone. Each of the primary fuel gas inlets 1207 and the primary fuel gas outlets 1208 provides for a flow of fuel gas therethrough.

It is understood that the first reaction zone is a portion of cathode plate 120 that can participate in the cathode reaction. Thus, the provision of each of the first fuel gas inlets 1207 and the first fuel gas outlets 1208 in the first reaction zone can increase the active area of the fuel cell stack 1000, and thus can reduce the volume and weight of the fuel cell stack 1000.

Preferably, a third fuel gas inlet 1301 and a third fuel gas outlet 1302 are provided on the membrane electrode assembly 130, and each of the third fuel gas inlet 1301 and the third fuel gas outlet 1302 is provided for the fuel gas to flow through. After the fuel cell stack 1000 is assembled using the anode plate 110, the cathode plate 120, and the membrane electrode assembly 130, each of the first fuel gas inlet 1207 and the second fuel gas inlet 1101 is opposed to and communicates with the third fuel gas inlet 1301 in the thickness direction of the anode plate 110, and each of the first fuel gas outlet 1208 and the second fuel gas outlet 1102 is opposed to and communicates with the third fuel gas outlet 1302 in the thickness direction of the anode plate 110.

As shown in fig. 4 to 7, the first through grooves 1201 extend in the width direction of the first body 1200, the second through grooves 1202 extend in the width direction of the first body 1200, and the plurality of first through grooves 1201 and the plurality of second through grooves 1202 are alternately and spaced apart in the length direction of the first body 1200. The notches of the first through groove 1201 and the second through groove 1202 are oriented in opposite directions, and the first body 1200 is provided with a plurality of through holes 1206 communicating with at least the first through groove 1201.

In some embodiments, as shown in fig. 4-7, the first body 1200 is a rectangular corrugated plate and each of the first and second through

slots

1202, 1202 is a U-shaped slot. Thus, the bottom wall of the first through groove 1202 and the bottom wall of the second through groove 1202 are both flat surfaces, which facilitates the connection of the bottom wall of the first through groove 1202 with the membrane electrode assembly 130 and the connection of the bottom wall of the second through groove 1202 with the anode plate 110 of the adjacent single cell 100. In addition, the bottom wall of the first through groove 1202 is a plane, which can effectively prevent the membrane electrode assembly 130 from being damaged when the cathode plate 120 is connected with the membrane electrode assembly 130. In addition, the first body 1200 is a rectangular corrugated plate so that each side of the cathode plate 120 is a plane, thereby facilitating the design process of the cathode plate 120.

The through hole 1206 in fig. 8 is provided on the bottom wall of the second through groove 1202, the through hole 1206 may contact with the membrane electrode assembly 130, and a stress concentration phenomenon may exist at a contact position of the membrane electrode assembly 130 and the through hole 1206, so that the performance of the membrane electrode assembly 130 is damaged, and the performance of the fuel cell stack 1000 is poor and the service life is short.

Preferably, as shown in fig. 4-6, the first through slot 1201 includes a slot bottom wall and slot side walls, and the through hole 1206 is provided on the slot bottom wall. Thus, the through-holes 1206 are not in contact with the membrane electrode assemblies 130, and it is possible to effectively improve the performance of the fuel cell stack 1000 and prolong the service life of the fuel cell stack 1000, as compared with the above-described arrangement of the through-holes 1206 on the groove bottom walls of the second through-grooves 1202. In addition, the first channel 1204 is communicated with the second channel 1205 by the through hole 1206, so that a part of air in the second channel 1205 can enter the first channel 1204 as an oxidizing gas, thereby improving the reaction uniformity of the fuel cell stack 1000 and further improving the working performance of the fuel cell stack 1000.

Preferably, as shown in fig. 7, the first through groove 1201 includes a groove bottom wall and a groove side wall, and the through hole 1206 is provided on the groove side wall. Thus, the through-holes 1206 are not in contact with the membrane electrode assemblies 130, and it is possible to effectively improve the performance of the fuel cell stack 1000 and prolong the service life of the fuel cell stack 1000, as compared with the above-described arrangement of the through-holes 1206 on the groove bottom walls of the second through-grooves 1202.

Of course, a through hole may also be provided on each of the groove bottom wall and the groove side wall of the first through groove 1201.

Preferably, as shown in fig. 4 to 7, a plurality of through holes 1206 are arranged in a rectangular array on the first body 1200. For example, as shown in fig. 4 to 6, five through holes 1206 are provided on each of the groove bottom walls of the first through grooves 1201, the diameter of each of the five through holes 1206 is 1 mm, and the five through holes 1206 are uniformly spaced in the width direction of the first body 1200. Alternatively, as shown in fig. 7, five through holes 1206 are provided on one of the side walls of each first through slot 1201, the diameter of each through hole 1206 is 1 mm, and the five through holes 1206 are uniformly distributed at intervals in the width direction of the first body 1200.

Of course, the arrangement of the plurality of through holes 1206 on the first body 1200 may not be limited.

The fuel cell stack 1000 according to the embodiment of the present invention has at least the following advantages:

(1) the anode plate 110 and the cathode plate 120 have simple structures, are easy to process and manufacture, are suitable for mass production, and can greatly reduce the cost of the fuel cell stack 1000.

(2) The through holes 1206 are formed in the cathode plate 120, so that the mass specific power and the volume specific power of the fuel cell stack 1000 can be further improved while the heat dissipation performance of the fuel cell stack 1000 is improved and the reliable operation of the fuel cell stack 1000 is ensured.

(3) The first fuel gas inlet 1207 and the first fuel gas outlet 1208 of the cathode plate 120 are located in the first reaction zone to facilitate reducing the size and weight of the cathode plate 120; the second fuel gas inlet 1101 and the second fuel gas outlet 1102 of the anode plate 110 are located in the second reaction zone, and occupy no additional space and do not need to additionally open a flow distribution area, which is advantageous in reducing the size and weight of the anode plate 110 and thus the fuel cell stack 1000.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The negative plate is characterized by comprising a first body, wherein the first body is provided with a plurality of first through grooves and a plurality of second through grooves, each of the first through grooves and the second through grooves extends along the width direction of the first body, the first through grooves and the second through grooves are alternately arranged along the length direction of the first body at intervals, the direction of the notches of the first through grooves and the direction of the notches of the second through grooves are opposite, and the first body is provided with a plurality of through holes communicated with the first through grooves at least.

2. A cathode plate according to claim 1 wherein the first through slots comprise slot bottom walls and slot side walls, the through holes being provided in the slot bottom walls.

3. A cathode plate according to claim 1 wherein the first through slots comprise slot bottom walls and slot side walls, the through holes being provided on the slot side walls.

4. A cathode plate according to any of claims 1 to 3, wherein the first body is a rectangular corrugated plate and each of the first and second through slots is a U-shaped slot.

5. A cathode plate according to any of claims 1 to 3, wherein a plurality of the through holes are arranged in a rectangular array on the first body.

6. A cathode plate according to any one of claims 1 to 3, wherein the first body is provided with a first reaction zone, a first fuel gas inlet and a first fuel gas outlet, the first fuel gas inlet and the first fuel gas outlet are arranged at a spacing, each of the first fuel gas inlet and the first fuel gas outlet passes through the first body in the thickness direction of the first body, and each of the first fuel gas inlet and the first fuel gas outlet is provided in the first reaction zone.

7. A fuel cell stack is characterized by comprising a plurality of single cells, wherein the single cells are sequentially stacked and connected in series along the height direction of the fuel cell stack, the single cells comprise anode plates, cathode plates and membrane electrode assemblies, the membrane electrode assemblies are arranged between the anode plates and the cathode plates, and the cathode plate of one of the adjacent single cells is connected with the anode plate of the other single cell; the cathode plate is according to any one of claims 1-6.

8. The fuel cell stack of claim 7, wherein the anode plate comprises a second body, the second body is provided with a second reaction zone, a second fuel gas inlet and a second fuel gas outlet, each of the second fuel gas inlet and the second fuel gas outlet penetrates through the second body along a thickness direction of the second body, the second fuel gas inlet and the second fuel gas outlet are arranged at intervals, and each of the second fuel gas inlet and the second fuel gas outlet is arranged in the second reaction zone.