CN111952623A - Bipolar plate of fuel cell - Google Patents
Bipolar plate of fuel cell Download PDFInfo
- Publication number
- CN111952623A CN111952623A CN202010687349.2A CN202010687349A CN111952623A CN 111952623 A CN111952623 A CN 111952623A CN 202010687349 A CN202010687349 A CN 202010687349A CN 111952623 A CN111952623 A CN 111952623A
- Authority
- CN
- China
- Prior art keywords
- cathode
- anode
- cooling
- plate
- flow field
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 109
- 239000000498 cooling water Substances 0.000 claims abstract description 71
- 238000006243 chemical reaction Methods 0.000 claims description 61
- 238000007789 sealing Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 5
- 239000012528 membrane Substances 0.000 description 6
- 239000012495 reaction gas Substances 0.000 description 6
- 238000005457 optimization Methods 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- -1 hydrogen ions Chemical class 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- DNHVXYDGZKWYNU-UHFFFAOYSA-N lead;hydrate Chemical compound O.[Pb] DNHVXYDGZKWYNU-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/0265—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant the reactant or coolant channels having varying cross sections
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
The present invention relates to a bipolar plate for a fuel cell. The bipolar plate of the fuel cell comprises an anode plate and a cathode plate, wherein the anode plate and the cathode plate are arranged in a mirror symmetry manner, and the anode plate and the cathode plate are sealed and attached into a whole; the side surface of the anode plate, which is far away from the binding surface, is set as a first anode surface, and the binding surface of the anode plate and the cathode plate is a second anode surface; the side surface of the cathode plate, which is far away from the binding surface, is set as a cathode first surface, and the binding surface of the cathode plate and the anode plate is a cathode second surface; the anode second surface and the cathode second surface are respectively provided with an anode cooling flow field and a cathode cooling flow field; this fuel cell bipolar plate, simple structure, convenient to use can compensate the cooling water flow in-process through improving the cooling water velocity of flow and lead to the uneven problem of local cooling because of endothermic self intensification, improves cooling performance, can also guarantee the homogeneity of gas velocity and concentration through the runner that becomes little from the entry to the export linearity.
Description
Technical Field
The invention belongs to the technical field of battery plates, and particularly relates to a bipolar plate of a fuel cell.
Background
Proton Exchange Membrane Fuel Cells (PEMFCs) have the advantages of low emissions, low temperature operation, and high power density, and are considered to be one of the most promising alternatives for clean power generation.
The proton exchange membrane fuel cell monomer is composed of a proton exchange membrane, a catalyst layer, a diffusion layer and a bipolar plate, and a plurality of cell monomers are stacked to form a cell stack. Bipolar plates are important components in proton exchange membrane fuel cells, accounting for 60% of the total weight of the fuel cell stack and 30% of the total cost. The bipolar plate is formed by attaching a cathode plate and an anode plate, and a reaction flow channel and a cooling flow channel are respectively carved on each unipolar plate to play roles in conveying reaction gas and cooling liquid and the like. Hydrogen and oxygen (or air) enter a Membrane Electrode Assembly (MEA) from an anode inlet on the cell through a reaction gas flow channel, the anode hydrogen loses electrons under the catalytic action to form hydrogen ions, and the hydrogen ions pass through a proton exchange membrane to be combined with oxygen on the cathode side to generate reaction product water and heat. The transportation of reaction gas and the timely removal of heat are very important for the optimization of the performance and the durability of the bipolar plate, which depend on a reasonable reaction flow field structure and a reasonable cooling flow field structure on the bipolar plate, and the uneven flow in the flow field can cause the uneven generation of water, heat and current, thereby seriously affecting the service life and the performance of the fuel cell. Uniform current and temperature distribution and efficient water removal are critical tasks of bipolar plates, and therefore careful design of their flow fields is required.
Disclosure of Invention
The invention aims to solve the problems and provide a fuel cell bipolar plate which is simple in structure and reasonable in design.
The invention realizes the purpose through the following technical scheme:
a fuel cell bipolar plate comprises an anode plate and a cathode plate, wherein the anode plate and the cathode plate are arranged in a mirror symmetry manner and are sealed and attached into a whole; the side surface of the anode plate, which is far away from the binding surface, is set as a first anode surface, and the binding surface of the anode plate and the cathode plate is a second anode surface; the side surface of the cathode plate, which is far away from the binding surface, is set as a cathode first surface, and the binding surface of the cathode plate and the anode plate is a cathode second surface; the anode second surface and the cathode second surface are respectively provided with an anode cooling flow field and a cathode cooling flow field, and the anode first surface and the cathode first surface are respectively provided with an anode reaction flow field and a cathode reaction flow field; the anode cooling flow field comprises anode cooling grooves and anode cooling ridges; the cathode cooling flow field comprises a cathode cooling groove and a cathode cooling groove ridge; the anode reaction flow field comprises anode reaction ridges and anode reaction grooves, and the cathode reaction flow field comprises cathode reaction ridges and cathode reaction grooves; the anode cooling flow field and the cathode cooling flow field, and the anode reaction flow field and the cathode reaction flow field are arranged in parallel in a plurality of groups of variable-width serpentine flow channels; the specifications of the multiple groups of flow channels are the same, and the width of the flow channels from the inlet to the outlet is linearly reduced along the length direction of the flow channels.
As a further optimization scheme of the present invention, a first anode inlet, a first anode cooling water inlet and a first anode cathode inlet are formed at a position on one side of the outer surfaces of the first anode surface and the second anode surface, a first anode outlet, a first anode cooling water outlet and a first anode cathode outlet are formed at a position on the other side of the outer surfaces of the first anode surface and the second anode surface, and the first anode inlet and the first anode outlet are communicated with an anode reaction flow field; the anode first cooling water inlet and the anode first cooling water outlet are communicated with the anode cooling flow field; a first cathode inlet, a first cathode cooling water inlet and a first cathode anode inlet are formed in the positions, close to one side, of the first cathode surface and the second cathode surface; and a first cathode outlet, a first cathode cooling water outlet and a first cathode anode outlet are formed in the positions, close to the other side, of the first cathode surface and the second cathode surface, the first cathode inlet and the first cathode outlet are communicated with the cathode reaction flow field, and the first cathode cooling water inlet and the first cathode cooling water outlet are communicated with the cathode cooling flow field.
As a further optimization scheme of the present invention, the second surface of the anode is provided with an anode cooling distribution area and an anode cooling collection area, the anode cooling distribution area is located between the anode cooling flow field and the anode first cooling water inlet, the anode cooling collection area is located between the anode cooling flow field and the anode first cooling water outlet, the second surface of the cathode is provided with a cathode cooling distribution area and a cathode cooling collection area, the cathode cooling distribution area is located between the cathode cooling flow field and the cathode first cooling water inlet, and the cathode cooling collection area is located between the cathode cooling flow field and the cathode first cooling water outlet.
As a further optimization scheme of the invention, the anode cooling distribution area, the cathode cooling distribution area, the anode cooling collection area and the cathode cooling collection area respectively comprise a first boss group and a second boss group, and the first boss group and the second boss group in the cooling distribution area uniformly divide the passing cooling water.
As a further preferred aspect of the present invention, the anode reaction grooves, the anode reaction ridges, the cathode reaction grooves and the cathode reaction ridges are rounded at the corners.
As a further optimized scheme of the present invention, anode positioning holes are respectively disposed at positions of the outer surface of the second surface of the anode, which are close to the first cathode inlet of the anode and the first cathode outlet of the anode, and cathode positioning holes are respectively disposed at positions of the outer surface of the second surface of the cathode, which are close to the first cathode inlet of the cathode and the first cathode outlet of the cathode.
As a further optimization scheme of the invention, the outer surface of the anode plate is provided with an anode sealing groove, and the outer surface of the cathode plate is provided with a cathode sealing groove.
As a further optimized solution of the present invention, the areas of the anode first cathode inlet and the anode first cathode outlet are both larger than the areas of the anode first anode inlet and the anode first anode outlet, the areas of the cathode first cathode inlet and the cathode first cathode outlet are both larger than the areas of the cathode first anode inlet and the cathode first outlet, and the anode cooling water inlet, the cathode cooling water inlet, the anode cooling water outlet, and the cathode cooling water outlet are all located at intermediate positions.
The invention has the beneficial effects that: the reaction flow field and the cooling flow field in the cathode plate and the anode plate are arranged in a width-variable snake-shaped winding manner, the width change is linear, and the uniformity of the speed and the concentration of reaction gas along a flow channel can be ensured on the basis of keeping the strong drainage performance of the snake-shaped flow field, so that the performance of the fuel cell is improved; the distribution area and the collection area of the cooling flow field are respectively provided with two-stage boss groups, the two-stage boss groups are matched to play a good flow guiding role, cooling liquid is uniformly distributed to the inlets of the flow channels, meanwhile, the cooling flow channels are arranged in parallel by adopting a plurality of groups of variable-width snake-shaped flow fields, the heat absorption and the self temperature rise in the flowing process of the cooling water lead to the deterioration of the cooling capacity, and the problem of uneven heat dissipation of the fuel cell is solved. The flow speed of the cooling water is gradually increased by linearly decreasing the width of the flow channel along the length direction, so that the heat dissipation capacity of each part in the flow channel is balanced; whole device simple structure, convenient to use can compensate the cooling water flow in-process through improving the cooling water velocity of flow and lead to the uneven problem of local cooling because of heat absorption self intensification, improves cooling performance, can also guarantee the homogeneity of gas velocity and concentration through the runner that becomes little from the entry to the export linearity.
Drawings
FIG. 1 is a schematic view of the structure of a first surface of an anode of the present invention;
FIG. 2 is a schematic structural view of a second surface of the anode of the present invention;
FIG. 3 is a schematic structural view of a first surface of a cathode of the present invention;
fig. 4 is a schematic structural view of the second surface of the cathode of the present invention.
In the figure: 1. an anode plate; 11. an anode first surface; 111. an anode first anode inlet; 112. an anode first cooling water inlet; 1121. an anode cooling groove; 1122. an anode cooling ridge; 113. an anode first cathode inlet; 114. an anode first anode outlet; 115. a first cooling water outlet of the anode; 116. an anode first cathode outlet; 117. an anode reaction flow field; 1171. an anode reaction groove; 1172. an anodic reaction trench ridge; 118. an anode sealing groove; 119. an anode positioning hole; 12. an anode second surface; 122. an anode cooling flow field; 123. an anode cooling distribution area; 124. an anode cooling collection region; 2. a cathode plate; 21. a cathode first surface; 211. a cathode first cathode inlet; 212. a cathode first cooling water inlet; 2121. a cathode cooling trench; 2122. cathode cooling ridges; 213. a cathode first anode inlet; 214. a cathode first cathode outlet; 215. a cathode first cooling water outlet; 216. a cathode first anode outlet; 217. a cathode reaction flow field; 2171. a cathode reaction trench; 2172. cathode reaction ridges; 218. a cathode seal groove; 219. a cathode positioning hole; 22. a cathode second surface; 222. a cathode cooling flow field; 2231. a first boss group; 2232. and a second boss group.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-4, a fuel cell bipolar plate comprises an anode plate 1 and a cathode plate 2, wherein the anode plate 1 and the cathode plate 2 are arranged in mirror symmetry, and the anode plate 1 and the cathode plate 2 are sealed and attached to form a whole; the side surface of the anode plate 1, which is far away from the binding surface, is set as an anode first surface 11, and the binding surface of the anode plate 1 and the cathode plate 2 is an anode second surface 12; the side surface of the cathode plate 2, which is far away from the binding surface, is set as a cathode first surface 21, and the binding surface of the cathode plate 2 and the anode plate 1 is a cathode second surface 22;
the anode second surface 12 and the cathode second surface 22 are respectively provided with an anode cooling flow field 122 and a cathode cooling flow field 222, and the anode first surface 11 and the cathode first surface 21 are respectively provided with an anode reaction flow field 117 and a cathode reaction flow field 217; the anode cooling flow field 122 includes anode cooling grooves 1121 and anode cooling ridges 1122; the cathode cooling flow field 222 includes cathode cooling grooves 2121 and cathode cooling ridges 2122;
the anode reaction flow field 117 includes anode reaction ridges 1172 and anode reaction grooves 1171 and the cathode reaction flow field 217 includes cathode reaction ridges 2172 and cathode reaction grooves 2171; the cross-sectional shapes of the anode reaction channel 1171 and the cathode reaction channel 2121 can be various, such as trapezoidal. Rectangle etc., the cross sectional shapes of the first anode inlet 111, the first cooling water inlet 112, the first cathode inlet 113, the first anode outlet 114, the first cooling water outlet 115 and the first cathode outlet 116 may be various, such as quadrangle, pentagon etc., the first anode inlet 111, the first cooling water inlet 112 and the first cathode inlet 113, the three and the first anode outlet 114, the first cooling water outlet 115 and the first cathode outlet 116 are centrosymmetric about the center point of the anode plate 1, and each inlet and outlet in the cathode plate 2 are arranged as such.
A first anode inlet 111, a first cooling water inlet 112 and a first cathode inlet 113 are formed in positions, close to one side, of the outer surfaces of the first anode surface 11 and the second anode surface 12, a first anode outlet 114, a first cooling water outlet 115 and a first cathode outlet 116 are formed in positions, close to the other side, of the outer surfaces of the first anode surface 11 and the second anode surface 12, and the first anode inlet 111 and the first anode outlet 114 are communicated with an anode reaction flow field 117; the anode first cooling water inlet 112 and the anode first cooling water outlet 115 are communicated with the anode cooling flow field 122;
a cathode first cathode inlet 211, a cathode first cooling water inlet 212 and a cathode first anode inlet 213 are formed at positions on one side of the cathode first surface 21 and one side of the cathode second surface 22; a cathode first cathode outlet 214, a cathode first cooling water outlet 215 and a cathode first anode outlet 216 are formed in the positions, close to the other sides, of the cathode first surface 21 and the cathode second surface 22, the cathode first cathode inlet 211 and the cathode first cathode outlet 214 are communicated with a cathode reaction flow field 217, and the cathode first cooling water inlet 212 and the cathode first cooling water outlet 215 are communicated with a cathode cooling flow field 222;
the anode second surface 12 is provided with an anode cooling distribution area 123 and an anode cooling collection area 124, the anode cold distribution area 123 is located between the anode cooling flow field 122 and the anode first cooling water inlet 112, the anode cooling collection area 124 is located between the anode cooling flow field 122 and the anode first cooling water outlet 115, the cathode second surface 22 is provided with a cathode cooling distribution area and a cathode cooling collection area, the cathode cold distribution area is located between the cathode cooling flow field 222 and the cathode first cooling water inlet 212, and the cathode cooling collection area is located between the cathode cooling flow field 222 and the cathode first cooling water outlet 215;
the anode cooling flow field 122 and the cathode cooling flow field 222, and the anode reaction flow field 117 and the cathode reaction flow field 217 are arranged in parallel in a plurality of groups of widening serpentine flow channels; the specifications of a plurality of groups of runners are the same, the width of the runners from the inlet to the outlet is linearly reduced along the length direction of the runners, the heat absorption self-heating in the flowing process of cooling water causes the cooling capacity to be reduced, the flow speed of the cooling water is gradually increased by linearly reducing the width of the grooves along the length direction of the grooves, the local convection heat exchange is enhanced, the plurality of serpentine flow fields are matched and arranged in parallel, so that all parts of the bipolar plate are uniformly cooled, the anode reaction flow field 117 is arranged in a widened serpentine flow field, the width of the anode reaction groove 1171 is linearly reduced from the inlet to the outlet, part of reaction gas is consumed when flowing along the grooves, the width of the grooves along the process is reduced, the uniformity of the speed and the concentration of the reaction gas is ensured, so that the electrochemical reaction is more uniform, the catalyst layer is;
the anode cooling distribution area, the cathode cooling distribution area, the anode cooling collection area 124 and the cathode cooling collection area respectively comprise a first boss group 2231 and a second boss group 2232, the first boss group 2231 and the second boss group 2232 in the cooling distribution area uniformly divide the passing cooling water, the number of the second boss group 2232 is larger than that of the first boss group 2231, the cooling liquid flows into the first boss group 2231 and the second boss group 2232 from a cooling water inlet (short for a cooling water inlet of a bipolar plate) and is scattered into a plurality of streams to enter the corresponding cooling flow channels, the two-stage division is carried out, the flow uniformity of each serpentine flow channel is ensured, and by taking the anode plate 1 as an example, the cooling water flows out from the anode cooling flow field 122, then enters the anode first cooling water outlet 115 after flowing out of the anode cooling flow field 124; the anode reaction groove 1171, the anode reaction groove ridge 1172, the cathode reaction groove 2171 and the cathode reaction groove ridge 2172 are rounded off at the corners, so that the flow resistance can be reduced, the pressure of an inlet and an outlet is reduced, the pressure difference of adjacent groove parts can be reduced, and the occurrence of 'dead zones' at the corners is avoided; the outer surface of the anode second surface 12 is provided with anode positioning holes 119 at positions close to the anode first cathode inlet 113 and the anode first cathode outlet 116, and the outer surface of the cathode second surface 22 is provided with cathode positioning holes 219 at positions close to the cathode first cathode inlet 211 and the cathode first cathode outlet 214, so that the cathode and the anode can be effectively prevented from being reversely assembled when the fuel cell is assembled; an anode sealing groove 118 is formed in the outer surface of the anode plate 1, a cathode sealing groove 218 is formed in the outer surface of the cathode plate 2, and a sealing groove is formed to meet the sealing requirement, so that the inlet and the outlet of the surface of each electrode plate are sealed;
the areas of the anode first cathode inlet 113 and the anode first cathode outlet 116 are larger than the areas of the anode first anode inlet 111 and the anode first anode outlet 114, the areas of the cathode first cathode inlet 211 and the cathode first cathode outlet 214 are larger than the areas of the cathode first anode inlet 213 and the cathode first outlet, so that sufficient oxygen/air supply is ensured, and the anode cooling water inlet, the cathode cooling water inlet, the anode cooling water outlet and the cathode cooling water outlet are all located at middle positions.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (8)
1. A fuel cell bipolar plate is characterized by comprising an anode plate and a cathode plate, wherein the anode plate and the cathode plate are arranged in a mirror symmetry manner and are sealed and attached into a whole;
the side surface of the anode plate, which is far away from the binding surface, is set as a first anode surface, and the binding surface of the anode plate and the cathode plate is a second anode surface; the side surface of the cathode plate, which is far away from the binding surface, is set as a cathode first surface, and the binding surface of the cathode plate and the anode plate is a cathode second surface;
the anode second surface and the cathode second surface are respectively provided with an anode cooling flow field and a cathode cooling flow field, and the anode first surface and the cathode first surface are respectively provided with an anode reaction flow field and a cathode reaction flow field; the anode cooling flow field comprises anode cooling grooves and anode cooling ridges; the cathode cooling flow field comprises a cathode cooling groove and a cathode cooling groove ridge; the anode reaction flow field comprises anode reaction ridges and anode reaction grooves, and the cathode reaction flow field comprises cathode reaction ridges and cathode reaction grooves;
the anode cooling flow field and the cathode cooling flow field, and the anode reaction flow field and the cathode reaction flow field are arranged in parallel in a plurality of groups of variable-width serpentine flow channels; the specifications of the multiple groups of flow channels are the same, and the width of the flow channels from the inlet to the outlet is linearly reduced along the length direction of the flow channels.
2. A fuel cell bipolar plate as claimed in claim 1, wherein: a first anode inlet, a first anode cooling water inlet and a first anode cathode inlet are formed in the positions, close to one side, of the outer surfaces of the first anode surface and the second anode surface, a first anode outlet, a first anode cooling water outlet and a first anode cathode outlet are formed in the positions, close to the other side, of the outer surfaces of the first anode surface and the second anode surface, and the first anode inlet, the first anode outlet and the anode reaction flow field are communicated; the anode first cooling water inlet and the anode first cooling water outlet are communicated with the anode cooling flow field; a first cathode inlet, a first cathode cooling water inlet and a first cathode anode inlet are formed in the positions, close to one side, of the first cathode surface and the second cathode surface; and a first cathode outlet, a first cathode cooling water outlet and a first cathode anode outlet are formed in the positions, close to the other side, of the first cathode surface and the second cathode surface, the first cathode inlet and the first cathode outlet are communicated with the cathode reaction flow field, and the first cathode cooling water inlet and the first cathode cooling water outlet are communicated with the cathode cooling flow field.
3. A fuel cell bipolar plate as claimed in claim 2, wherein: the anode cooling distribution area and the anode cooling collection area are arranged on the second surface of the anode, the anode cooling distribution area is located between the anode cooling flow field and the first anode cooling water inlet, the anode cooling collection area is located between the anode cooling flow field and the first anode cooling water outlet, the cathode cooling distribution area and the cathode cooling collection area are arranged on the second surface of the cathode, the cathode cooling distribution area is located between the cathode cooling flow field and the first cathode cooling water inlet, and the cathode cooling collection area is located between the cathode cooling flow field and the first cathode cooling water outlet.
4. A fuel cell bipolar plate as claimed in claim 3, wherein: the anode cooling distribution area, the cathode cooling distribution area, the anode cooling collection area and the cathode cooling collection area respectively comprise a first boss group and a second boss group, and the first boss group and the second boss group in the cooling distribution area uniformly distribute the passing cooling water.
5. A fuel cell bipolar plate as claimed in claim 4, wherein: the anode reaction grooves, the anode reaction ridges, the cathode reaction grooves and the cathode reaction ridges are rounded at corners.
6. A fuel cell bipolar plate as claimed in claim 5, wherein: the outer surface of the second surface of the anode is provided with anode positioning holes at positions close to the first cathode inlet and the first cathode outlet of the anode respectively, and the outer surface of the second surface of the cathode is provided with cathode positioning holes at positions close to the first cathode inlet and the first cathode outlet of the cathode respectively.
7. A fuel cell bipolar plate as claimed in claim 6, wherein: the outer surface of the anode plate is provided with an anode sealing groove, and the outer surface of the cathode plate is provided with a cathode sealing groove.
8. A fuel cell bipolar plate as claimed in claim 7, wherein: the area of the first cathode inlet of the anode and the area of the first cathode outlet of the anode are both larger than the area of the first anode inlet of the anode and the area of the first anode outlet of the anode, the area of the first cathode inlet of the cathode and the area of the first cathode outlet of the cathode are both larger than the area of the first anode inlet of the cathode and the area of the first cathode outlet of the cathode, and the anode cooling water inlet, the cathode cooling water inlet, the anode cooling water outlet and the cathode cooling water outlet are all located in the middle positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010687349.2A CN111952623A (en) | 2020-07-16 | 2020-07-16 | Bipolar plate of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010687349.2A CN111952623A (en) | 2020-07-16 | 2020-07-16 | Bipolar plate of fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111952623A true CN111952623A (en) | 2020-11-17 |
Family
ID=73340971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010687349.2A Pending CN111952623A (en) | 2020-07-16 | 2020-07-16 | Bipolar plate of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111952623A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809337A (en) * | 2021-09-13 | 2021-12-17 | 中汽创智科技有限公司 | Fuel cell bipolar plate and fuel cell |
| CN113964337A (en) * | 2021-10-10 | 2022-01-21 | 北京工业大学 | Fuel cell flow field plate with flow channel for adaptively distributing liquid water content |
| CN114883592A (en) * | 2022-04-18 | 2022-08-09 | 武汉众宇动力系统科技有限公司 | Plate assembly of fuel cell, and cathode plate and anode plate |
| CN115172794A (en) * | 2022-07-31 | 2022-10-11 | 天津大学 | Rib width gradually-changed flow channel structure for flow battery and flow battery |
| CN115513486A (en) * | 2022-10-27 | 2022-12-23 | 中汽创智科技有限公司 | Unipolar plate, bipolar plate, electric pile and fuel cell |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000090943A (en) * | 1998-09-17 | 2000-03-31 | Toyota Central Res & Dev Lab Inc | Fuel cell |
| JP2006202524A (en) * | 2005-01-18 | 2006-08-03 | Nissan Motor Co Ltd | Manifold structure of fuel cell stack |
| JP2014192151A (en) * | 2013-03-28 | 2014-10-06 | Honda Motor Co Ltd | Fuel cell |
| CN205319237U (en) * | 2015-12-29 | 2016-06-15 | 新源动力股份有限公司 | Bipolar plate of fuel battery |
| CN105870477A (en) * | 2016-06-08 | 2016-08-17 | 江苏耀扬新能源科技有限公司 | Fuel cell bipolar plate |
| CN106571472A (en) * | 2016-11-10 | 2017-04-19 | 上海交通大学 | Fuel cell metal dual pole plate assembly for enhancing fluid uniformity |
| CN109075358A (en) * | 2016-03-22 | 2018-12-21 | 环能源公司 | Fuel battery flow field for heat management designs |
| KR20190065922A (en) * | 2017-12-04 | 2019-06-12 | 인하대학교 산학협력단 | Separator for a fuel cell and fuel cell stack comprising it |
| CN110224152A (en) * | 2019-05-30 | 2019-09-10 | 山东潍氢动力科技有限公司 | Fuel cell with double density sealing groove metal double polar plates and note silica gel film electrode structure |
| CN110380090A (en) * | 2019-07-26 | 2019-10-25 | 苏州弗尔赛能源科技股份有限公司 | A kind of unitized fuel cell bipolar plate |
-
2020
- 2020-07-16 CN CN202010687349.2A patent/CN111952623A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000090943A (en) * | 1998-09-17 | 2000-03-31 | Toyota Central Res & Dev Lab Inc | Fuel cell |
| JP2006202524A (en) * | 2005-01-18 | 2006-08-03 | Nissan Motor Co Ltd | Manifold structure of fuel cell stack |
| JP2014192151A (en) * | 2013-03-28 | 2014-10-06 | Honda Motor Co Ltd | Fuel cell |
| CN205319237U (en) * | 2015-12-29 | 2016-06-15 | 新源动力股份有限公司 | Bipolar plate of fuel battery |
| CN109075358A (en) * | 2016-03-22 | 2018-12-21 | 环能源公司 | Fuel battery flow field for heat management designs |
| CN105870477A (en) * | 2016-06-08 | 2016-08-17 | 江苏耀扬新能源科技有限公司 | Fuel cell bipolar plate |
| CN106571472A (en) * | 2016-11-10 | 2017-04-19 | 上海交通大学 | Fuel cell metal dual pole plate assembly for enhancing fluid uniformity |
| KR20190065922A (en) * | 2017-12-04 | 2019-06-12 | 인하대학교 산학협력단 | Separator for a fuel cell and fuel cell stack comprising it |
| CN110224152A (en) * | 2019-05-30 | 2019-09-10 | 山东潍氢动力科技有限公司 | Fuel cell with double density sealing groove metal double polar plates and note silica gel film electrode structure |
| CN110380090A (en) * | 2019-07-26 | 2019-10-25 | 苏州弗尔赛能源科技股份有限公司 | A kind of unitized fuel cell bipolar plate |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809337A (en) * | 2021-09-13 | 2021-12-17 | 中汽创智科技有限公司 | Fuel cell bipolar plate and fuel cell |
| CN113964337A (en) * | 2021-10-10 | 2022-01-21 | 北京工业大学 | Fuel cell flow field plate with flow channel for adaptively distributing liquid water content |
| CN113964337B (en) * | 2021-10-10 | 2024-06-04 | 北京工业大学 | Flow channel-to-liquid water content self-adaptive split fuel cell flow field plate |
| CN114883592A (en) * | 2022-04-18 | 2022-08-09 | 武汉众宇动力系统科技有限公司 | Plate assembly of fuel cell, and cathode plate and anode plate |
| CN115172794A (en) * | 2022-07-31 | 2022-10-11 | 天津大学 | Rib width gradually-changed flow channel structure for flow battery and flow battery |
| CN115513486A (en) * | 2022-10-27 | 2022-12-23 | 中汽创智科技有限公司 | Unipolar plate, bipolar plate, electric pile and fuel cell |
| CN115513486B (en) * | 2022-10-27 | 2024-03-01 | 中汽创智科技有限公司 | Monopolar plate, bipolar plate, electric pile and fuel cell |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111952623A (en) | Bipolar plate of fuel cell | |
| US9905880B2 (en) | Fuel cell stack | |
| CN107658480B (en) | A kind of fuel-cell single-cell and pile of the enhancing of temperature and humidity uniformity | |
| CN109904484B (en) | Fuel cell bipolar plate structure and fuel cell | |
| KR20160136588A (en) | Bipolar plate for fuel cell | |
| CN113555580A (en) | Polar plate for fuel cell pile | |
| CN108155400B (en) | Fuel cell bipolar plate cooling flow field structure | |
| CN114068978B (en) | Parallel bipolar plate of hydrogen air flow field of air-cooled fuel cell | |
| CN111146473A (en) | Fuel cell metal bipolar plate and fuel cell | |
| CN112909283A (en) | Proton exchange membrane fuel cell bipolar plate | |
| CN115064722B (en) | Heat dissipation metal stamping bipolar plate of air-cooled proton exchange membrane fuel cell | |
| CN116646551A (en) | Double-slope gas flow passage structure for proton exchange membrane fuel cell | |
| WO2020228131A1 (en) | Bipolar plate, fuel cell stack containing bipolar plate, and power generation system | |
| CN114678558A (en) | Fuel cell bipolar plate and fuel cell stack with same | |
| CN215118955U (en) | Bipolar plate for fuel cell and fuel cell | |
| CN112909284A (en) | Bipolar plate for fuel cell with isosceles triangle area and fuel cell | |
| CN211404636U (en) | Graphite-metal composite bipolar plate for super-high power proton exchange membrane fuel cell | |
| CN211743309U (en) | Bipolar plate for testing power generation performance of membrane electrode of hydrogen fuel cell | |
| KR101534940B1 (en) | Bipolar plate for fuel cell and fuel cell using the same | |
| CN210296506U (en) | Z-shaped fuel cell flow field plate | |
| CN210866380U (en) | Proton exchange membrane fuel cell monomer and proton exchange membrane fuel cell stack | |
| US20220238894A1 (en) | Fuel cell | |
| CN110289431A (en) | A kind of fuel cell flow field board of zigzag | |
| CN115692758A (en) | Metal polar plate structure of fuel cell | |
| CN115472857A (en) | High-power hydrogen fuel cell metal bipolar plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201117 |
|
| RJ01 | Rejection of invention patent application after publication |