CN109585875A - Fuel cell separator part, individual fuel cells and fuel cell pile - Google Patents
Fuel cell separator part, individual fuel cells and fuel cell pile Download PDFInfo
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- CN109585875A CN109585875A CN201811478723.7A CN201811478723A CN109585875A CN 109585875 A CN109585875 A CN 109585875A CN 201811478723 A CN201811478723 A CN 201811478723A CN 109585875 A CN109585875 A CN 109585875A
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 201
- 238000010349 cathodic reaction Methods 0.000 claims abstract description 153
- 239000012528 membrane Substances 0.000 claims description 146
- 239000002826 coolant Substances 0.000 claims description 103
- 238000007789 sealing Methods 0.000 claims description 82
- 238000009792 diffusion process Methods 0.000 claims description 68
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- 239000002253 acid Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 245
- 239000002737 fuel gas Substances 0.000 description 69
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- 230000001590 oxidative effect Effects 0.000 description 49
- 238000000034 method Methods 0.000 description 30
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- 229910052760 oxygen Inorganic materials 0.000 description 11
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- 229910052739 hydrogen Inorganic materials 0.000 description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 7
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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
-
- 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
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1007—Fuel cells with solid electrolytes with both reactants being gaseous or vaporised
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- 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
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- 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 invention discloses a kind of fuel cell separator part, individual fuel cells and fuel cell pile, the fuel cell separator part, comprising: anode plate;Cathode plate, the cathode plate includes cathodic reaction zone and the cathode edge area around the cathodic reaction zone, the first side of the cathodic reaction zone is arranged relative to the second side recess of first side towards the cathode plate in the cathode edge area to form deep gouge, and the second side of the cathode plate and the second side of the anode plate are oppositely arranged;Gas circuit component, the gas circuit component are arranged in the deep gouge.Fuel cell separator part of the invention cooperates gas circuit component by setting deep gouge, can increase reaction volume.
Description
Technical field
The invention belongs to fuel cell manufacturing technology fields, in particular to a kind of fuel cell separator part, have and are somebody's turn to do
The fuel cell pile of fuel cell separator part and a kind of individual fuel cells.
Background technique
Fuel cell especially hydrogen fuel cell be mainly used for the fuel cell-powered vehicle of new-energy automobile series, car with
And the fields such as truck, new energy source fuel cell power vehicle, aircraft, home-use decentralized power s.
Fuel cell have stacked structure, usually by individual fuel cells be laminated it is multiple made of laminated body and constitute.
In general individual fuel cells include generating body and partition, generating body includes dielectric film and configuration on dielectric film two sides
Electrode catalyst layer.In fuel cell unit, the both ends of laminated body stack gradually collector plate, insulation board, end plate, and use connection
Device links a pair of end plate for being respectively at laminated body two sides, it is made to keep laminated arrangement.
The flow path that separator surface has supply response gas to flow, the efficiency shadow of the set-up mode of the flow path to fuel cell
Sound is larger.In the related technology, the structure of separator provides reducing agent gas flow path and oxidant gas flow path is relatively simple, not
In view of the practical trend of gas.
Reaction compartment needed for the characteristic requirements hydrogen-oxygen side of fuel cell is different, generally not using two sides runner design width
Same method solves the problems, such as this.But the side that width of flow path increases causes the side runner breadth depth ratio to increase, so as to cause reaction effect
Rate reduces or the increase of battery volume.Further it is also possible to increase the complexity of punch process.
Fuel cell can generate heat in power generation process.In the related technology, in order to take away heat, usually separating
Coolant flow channel is arranged in the marginal zone of part, and the cooling effect of which is bad, and the heating that long-time service will lead to fuel cell is serious,
Influence the efficiency of electrochemical reaction.
In the laminated body of stacking fuel cells, the press-fit effect of laminated body directly affects the reaction efficiency of fuel cell.
In the related technology, need to be arranged independent press fitting frame to realize the press fitting of laminated body, components are more, complex process.
The stacked structure of fuel cell is by applying fastening force to being placed on the end plate to each monocell laminated body both ends
And it is formed.In the related technology, need to be arranged independent press fitting frame, the rod piece for applying fastening force passes through press fitting frame.This
Kind press-fit approach causes cell internal pressure uneven, to influence battery performance.
It is exhausted with membrane electrode one using being arranged in membrane electrode surrounding in order to realize the positioning and fixing of membrane electrode generating body
Edge insulate frame to realize.When bearing the high pressure of battery work, insulating, frame itself is different from membrane electrode material properties easily to be led
The deformation and displacement of insulation frame are caused, and then influences battery performance.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.
Fuel cell separator part according to an embodiment of the present invention, comprising: anode plate;Cathode plate, the cathode plate include yin
Pole reaction zone and the cathode edge area for surrounding the cathodic reaction zone, the first side of the cathodic reaction zone is relative to the yin
The second side recess of the first side of pole marginal zone towards the cathode plate is arranged to form deep gouge, second side of the cathode plate
Face and the second side of the anode plate are oppositely arranged;Gas circuit component, the gas circuit component are arranged in the deep gouge.
Fuel cell separator part according to an embodiment of the present invention cooperates gas circuit component by setting deep gouge, can increase
Reaction volume.
The invention also provides a kind of fuel cell piles, comprising: it is multiple it is above-mentioned it is any as described in fuel cell point
Spacing body and membrane electrode assembly, multiple fuel cell separator parts are stacked, and the anode plate of the fuel cell separator part
The membrane electrode assembly is folded between the gas circuit component of an adjacent fuel cell separator part.
The invention also provides a kind of individual fuel cells, comprising: anode plate;Cathode plate, the cathode plate include cathode
Reaction zone and the cathode edge area for surrounding the cathodic reaction zone, the first side of the cathodic reaction zone is relative to the cathode
The second side recess of the first side of marginal zone towards the cathode plate is arranged to form deep gouge;Membrane electrode assembly and gas circuit group
Part, the membrane electrode assembly and the gas circuit component are folded in the first side of the anode plate and the first side of the cathode plate
Between face, the gas circuit component is arranged in the deep gouge, and is positioned by the peripheral wall of the deep gouge.
The fuel cell pile, the individual fuel cells and above-mentioned fuel cell separator part are compared with the existing technology
Possessed advantage is identical, and details are not described herein.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the external structure schematic diagram of fuel cell pile according to an embodiment of the present invention;
Fig. 2 is each layer Structure explosion diagram of individual fuel cells according to an embodiment of the present invention;
Fig. 3 is the front view of fuel cell separator part according to an embodiment of the present invention;
Fig. 4 is the front view of fuel cell separator part according to an embodiment of the present invention;
Fig. 5 is the partial enlarged view in Fig. 4 at A;
Fig. 6 is the cross-section diagram in figure at M-M;
Fig. 7 is the cross-section diagram in figure at N-N;
Fig. 8 is the structural schematic diagram of screen according to an embodiment of the present invention;
Fig. 9 is the cross-section diagram of the individual fuel cells in stacking direction of one embodiment according to the present invention;
Figure 10 is the cross-sectional view according to the cathode plate of first embodiment of the invention;
Figure 11 is cross-section diagram of the individual fuel cells in stacking direction of second embodiment according to the present invention;
Figure 12 is the cross-sectional view according to the cathode plate of second embodiment of the invention;
Figure 13 is cross-section diagram of the individual fuel cells in stacking direction of third embodiment according to the present invention;
Figure 14 is the cross-sectional view according to the cathode plate of third embodiment of the invention;
Figure 15 is cross-section diagram of the individual fuel cells in stacking direction of the 4th embodiment according to the present invention;
Figure 16 is the cross-sectional view according to the cathode plate of four embodiment of the invention;
Figure 17 is cross-section diagram of the individual fuel cells in stacking direction of the 5th embodiment according to the present invention;
Figure 18 is cross-section diagram of the individual fuel cells in stacking direction of the 6th embodiment according to the present invention;
Figure 19 is the cross-sectional view according to the cathode plate of sixth embodiment of the invention;
Figure 20 is the cross-sectional view according to the anode plate of sixth embodiment of the invention;
Figure 21 is the cross-sectional view according to the anode plate of the embodiment of the present invention;
Figure 22 is the cross-sectional view according to the cathode plate of the embodiment of the present invention.
Appended drawing reference:
Anode plate 10, anode reaction area 11, anode flow channel 111, anode edge area 12, anode seal slot 121, air inlet water conservancy diversion
Area 123, outlet guiding region 124, anode seal boss 125, anode clamping part 126, anode flow channel bottom surface A1, anode flow channel top surface
A2, edge protuberance face A3,
Cathode plate 20, cathodic reaction zone 21, cathode flow channels 211, cathode edge area 22, cathode seal groove 221, cathode sealing
Boss 225, cathode flow channels bottom surface C1, cathode flow channels top surface C2, cathode clamping part crowning C3, cathode edge area plane C4 are close
Sealing 222, cascaded surface 223, cathode clamping part 126,
Membrane electrode assembly 30, anode gas circuit diffusion layer 31, cathode gas circuit diffusion layer 32, membrane electrode 33, insulate frame 34,
Gas circuit component 40, cold side component 50, screen 60, screen runner 61,
Fuel gas inlet 71, fuel gas outlet 72, oxidant inlet 73, oxidant outlet 74, coolant inlet 75 are cooling
Agent outlet 76, escape groove 77, first direction X, second direction Y.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
The fuel cell pile of the embodiment of the present invention can be hydrogen fuel cell, and fuel cell pile may include multiple layers
The individual fuel cells of folded setting, each individual fuel cells include the anode plate 10 being stacked, membrane electrode assembly 30, cathode
Plate 20, fuel gas enter the gas circuit at anode plate 10, and oxidant gas enters the gas circuit at cathode plate 20, fuel gas and oxygen
By membrane electrode assembly 30 electrochemical reaction occurs for oxidant gas, converts electric energy, such as the combustion of hydrogen fuel cell for chemical energy
Material gas is hydrogen, and oxidant gas is oxygen, and certainly, usual cathode supply is air.
Or fuel cell pile may include fuel cell separator part and membrane electrode assembly 30, fuel cell separator part is extremely
Few includes the anode plate 10 and cathode plate 20 being stacked, and membrane electrode assembly 30 is folded in the anode of a fuel cell separator part
Between plate 10 and the cathode plate 20 of another adjacent fuel cell separator part.
The not substantive difference of above two describing mode, only by the segmentation of fuel cell pile when have chosen not
With periodical module, in each embodiment below, such as fuel cell separator part is described in detail, then is being related to pair
It is only briefly described when the individual fuel cells answered.
Embodiment one
Fuel cell separator part according to an embodiment of the present invention is described below with reference to Fig. 1-Figure 22.
As shown in Fig. 1-Figure 22, fuel cell separator part according to an embodiment of the invention includes anode plate 10 and cathode
Plate 20.
Wherein, as shown in figure 21, the first side of anode plate 10 is equipped with anode flow channel 111, at least portion of anode flow channel 111
Divide and extend in a first direction, it is preferable that the main part of anode flow channel 111 extends in a first direction.
As shown in figure 22, the first side of cathode plate 20 be equipped with cathode flow channels 211, cathode flow channels 211 at least partially along
Second direction extends, and cathode flow channels 211 at least partly extend in a second direction, it is preferable that the main part of cathode flow channels 211
Extend in a second direction.
First direction is vertical with second direction, and first direction can be the length direction of anode plate 10, and second direction can be with
For the width direction of cathode plate 20, as shown in fig. 6, the width direction along fuel cell separator part cuts fuel cell separator part,
The extending direction that the cross-section diagram can be seen that cathode flow channels 211 is vertical with the extending direction of anode flow channel 111.
Anode plate 10 is stacked with cathode plate 20, and the second side phase of the second side of anode plate 10 and cathode plate 20
To setting.The first side of anode plate 10 and the first side of cathode plate 20 are for clamping membrane electrode assembly 30, in a fuel
In battery separators, substantially comprise an individual fuel cells anode plate 10 and adjacent another individual fuel cells
Cathode plate 20.
The second side of the anode plate 10 and the second side face of the cathode plate 20 are arranged, second side of the anode plate 10
Face can directly be compressed with the second side of the cathode plate 20 to be bonded or the second side of the anode plate 10 and the cathode plate 20
Second side between can be with other separators of sandwiched.
It is understood that by the design of above-mentioned orthogonal runner, so that fuel gas and oxidant gas exist
It can keep being mutually perpendicular to flow substantially when work, the water that generates in reaction and heat are more evenly distributed, to help to mention
The performance and used life of high fuel cell.
Fuel cell separator part according to an embodiment of the present invention is conducive to the hydro-thermal distribution and production of balancing fuel cell
Water is quickly discharged, and is conducive to the wetting of film, to improve the performance and used life of fuel cell, and this fuel cell separator
The structure of part is simple, and without special high manufacturing accuracy, processing cost is low, is conducive to industrialized production.
In some embodiments, as shown in figure 21, anode plate 10 is including anode reaction area 11 and around anode reaction area 11
Anode edge area 12, anode flow channel 111 is set to the first side in anode reaction area 11, for example anode reaction area 11 can be square
Shape, anode edge area 12 can be rectangle frame;Cathode plate 20 includes cathodic reaction zone 21 and the cathode around cathodic reaction zone 21
Marginal zone 22, cathode flow channels 211 are set to the first side of cathodic reaction zone 21, for example cathodic reaction zone 21 can be rectangle, yin
Pole marginal zone 22 can be rectangle frame, it should be noted that above-mentioned rectangle and rectangle frame are not limited to standard rectangular and standard
In rectangle frame, such as anode plate 10 shown in Figure 21, notch can be equipped at four exterior angles in anode edge area 12.
It should be noted that the first side of anode plate 10, the first side in anode reaction area 11, anode edge area 12
First side is respectively positioned on the same side of anode plate 10, the second side of anode plate 10, the second side in anode reaction area 11, anode
The second side of marginal zone 12 is respectively positioned on the same side of anode plate 10;The first side of cathode plate 20, cathodic reaction zone 21
One side, cathode edge area 22 first side be respectively positioned on the same side of cathode plate 20, the second side of cathode plate 20, cathode are anti-
The second side of the second side, cathode edge area 22 of answering area 21 is respectively positioned on the same side of cathode plate 20;Cathode plate 20 and anode
The side of plate 10 being oppositely arranged with membrane electrode assembly 30 is first side, first side and second side back to setting.
Anode edge area 12 includes: two along the first edge area that first direction is oppositely arranged, two phases in a second direction
To the second edge area of setting, one end phase that the both ends in a first edge area are oppositely arranged with Liang Ge second edge area respectively
Even, the other end that the both ends in another first edge area are oppositely arranged with Liang Ge second edge area respectively is connected.Two the first sides
One in edge area is equipped with fuel gas inlet 71, another in Liang Ge first edge area is equipped with fuel gas outlet 72.
Cathode edge area 22 includes: two along the first edge area that first direction is oppositely arranged, two phases in a second direction
To the second edge area of setting, one end phase that the both ends in a first edge area are oppositely arranged with Liang Ge second edge area respectively
Even, the other end that the both ends in another first edge area are oppositely arranged with Liang Ge second edge area respectively is connected.
One in Liang Ge first edge area is equipped with coolant outlet 76 and fuel gas inlet 71, in Liang Ge first edge area
Another be equipped with coolant inlet 75 and fuel gas outlet 72;One in Liang Ge second edge area is equipped with oxidant inlet
Another in 73, Liang Ge second edge areas is equipped with oxidant outlet 74.Fuel gas inlet 71 is positioned below, fuel gas outlet 72
It is located at top, hydrogen from top to bottom, is conducive to the wetting of film.
71 face of fuel gas inlet on fuel gas inlet 71 and cathode plate 20 on anode plate 10 is arranged, on anode plate 10
Fuel gas outlet 72 with cathode plate 20 on fuel gas export 72 faces setting;Coolant inlet 75 and yin on anode plate 10
75 face of coolant inlet on pole plate 20 is arranged, and the coolant outlet 76 on anode plate 10 goes out with the coolant on cathode plate 20
Mouth 76 faces setting;73 face of oxidant inlet on oxidant inlet 73 and cathode plate 20 on anode plate 10 is arranged, anode
74 face of oxidant outlet on oxidant outlet 74 and cathode plate 20 on plate 10 is arranged.
Shown in as shown in Figure 1, Figure 21, Figure 22, coolant outlet 76 and fuel gas inlet 71 are spaced apart distribution in a second direction, and
Fuel gas inlet 71 is located at close to one end of oxidant outlet 74, and coolant outlet 76 is located at one close to oxidant inlet 73
End, coolant inlet 75 and fuel gas outlet 72 are spaced apart distribution in a second direction, and fuel gas outlet 72 is located at close to oxidation
One end of agent import 73, coolant inlet 75 are located at close to one end of oxidant outlet 74.In other words, fuel gas inlet 71 and combustion
The outlet of material gas 72 is arranged in a staggered manner in second direction,, can be with convenient for the abundant reaction of fuel gas in this way, the stroke of fuel gas is longer
Improve the reactivity of fuel gas.
The design method of above-mentioned manifold ports, it can be ensured that 73 fuel gas inlet 71 of oxidant inlet is separate, make fuel gas into
Mouth 71 to guarantee that 71 humidity of fuel gas inlet is relatively high, and makes fuel cell coolant flow path close to oxidant outlet 74
From bottom to top, full irrigation form is formed.
Coolant outlet 76 and coolant inlet 75 be it is multiple, multiple coolant outlets 76 in a second direction be spaced apart point
Cloth, multiple coolant inlets 75 are spaced apart distribution in a second direction, oxidant outlet 74 and oxidant inlet 73 be it is multiple, it is more
A oxidant outlet 74 is spaced apart distribution along first direction, and multiple oxidant inlets 73 are spaced apart distribution along first direction.
It is understood that passing through the set-up mode of above-mentioned port, in conjunction with the cloth of anode flow channel 111 and cathode flow channels 211
Form is set, so that the flow direction square crossing of oxidant and fuel gas, the further hydro-thermal distribution of balancing fuel cell, and
The stroke of fuel gas is longer, and convenient for the abundant reaction of fuel gas, the reactivity of fuel gas can be improved.
As shown in figure 21, anode flow channel 111 includes multiple anode subflow roads extended in a first direction, multiple anode subflows
Road is arranged spaced apart in a second direction;As shown in figure 22, cathode flow channels 211 include multiple cathode subflows extended in a second direction
Road, multiple cathode subflows road are arranged spaced apart along first direction.
It should be noted that above-mentioned anode subflow road, which extends in a first direction, not defines that anode subflow road one is set to
Linear type, in fact, anode subflow road extends generally direction along first direction, for example anode subflow road can also be curved
Curved, anode subflow road includes the curved segmental arc of multistage or straightway, and cathode subflow road is similar.
The Liang Ge first edge area in anode edge area 12 is respectively equipped with air inlet guiding region 123 and outlet guiding region 124, air inlet
Guiding region 123 is located between fuel gas inlet 71 and anode flow channel 111, and outlet guiding region 124 is located at fuel gas outlet 72 and sun
Between pole runner 111, air inlet guiding region 123 and outlet guiding region 124 extend in a second direction.
It is understood that the number in this structure Anodic subflow road is more, and the import in each anode subflow road and
Outlet corresponds, and each anode subflow road can be connected to by air inlet guiding region 123 with fuel gas inlet 71, Mei Geyang
Pole subflow road can be connected to by outlet guiding region 124 with fuel gas outlet 72, i.e., after fuel gas enters fuel gas inlet 71
Air inlet guiding region 123 is first flowed through, reacts flowing into anode subflow road, then be pooled to outlet guiding region 124, then goes out from fuel gas
Mouth 72 exports.
Certainly, the structure of anode flow channel 111 and cathode flow channels 211 can also be other forms, for example anode flow channel 111 wraps
Multiple anode subflow roads extended in a first direction are included, multiple anode subflows road is arranged spaced apart in a second direction, anode subflow
The first end in road is connected with the first end in an adjacent anode subflow road, the second end in anode subflow road and adjacent another
The second end in anode subflow road is connected.In other words, anode flow channel 111 can be snakelike, in this way, fuel gas can be in limited sun
Pole reaction zone 11 flows through sufficiently long distance, reacts more complete.
It should be noted that above-mentioned anode subflow road, which extends in a first direction, not defines that anode subflow road one is set to
Linear type, in fact, anode subflow road extends generally direction along first direction, for example anode subflow road can also be curved
Curved, anode subflow road includes the curved segmental arc of multistage or straightway, and cathode subflow road is similar.
For each anode reaction area 11, it can be all anode subflow roads and be connected as a whole anode flow channel 111,
Or multiple anode subflows road is formed as one group, all anode subflow roads are divided into multiple groups, every group of multiple anode subflows
Road is connected as a whole snakelike anode flow channel 111, and each anode reaction area 11 includes a plurality of anode flow channel 111.
As shown in Fig. 9-Figure 20, the invention also discloses a kind of individual fuel cells, which includes: anode
Plate 10, cathode plate 20, membrane electrode assembly 30.
Wherein, the first side of anode plate 10 be equipped with anode flow channel 111, anode flow channel 111 at least partially along first party
To extension, the first side of cathode plate 20 is equipped with cathode flow channels 211, and cathode flow channels 211 are hung down at least partially along with first direction
Straight second direction extends, membrane electrode assembly 30 be folded in anode plate 10 first side and cathode plate 20 first side it
Between.
Wherein the structure of cathode plate 20 and cathode plate 20 can be no longer superfluous herein with the description in reference fuel battery separators
It states.
Individual fuel cells according to an embodiment of the present invention are conducive to equilibrium water heat distribution, and the property of individual fuel cells
The excellent, long service life of energy, processing cost is low, is conducive to industrialized production.
In some embodiments, the sealing of individual fuel cells can take following form: anode plate 10 includes that anode is anti-
Area 11 and the anode edge area 12 around anode reaction area 11 are answered, the first side in anode edge area 12 is equipped with anode seal slot
121;Cathode plate 20 includes cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and the of cathode edge area 22
One side is equipped with cathode seal groove 221;Membrane electrode assembly 30 include be stacked anode gas circuit diffusion layer 31, membrane electrode 33,
Cathode gas circuit diffusion layer 32, membrane electrode 33 stretch out at least partly peripheral hardware of anode gas circuit diffusion layer 31 and cathode gas circuit diffusion layer 32
It is equipped with insulation frame 34, insulation frame 34 is folded between anode seal slot 121 and the sealing element 222 of cathode seal groove 221, from
And realize the sealing of individual fuel cells.Certainly, the sealing of individual fuel cells can also be other structures, these sealing means
It will be described in detail later.
The invention also discloses a kind of fuel cell pile, which includes: multiple such as above-mentioned any reality
The fuel cell separator part and membrane electrode assembly 30 of example are applied, multiple fuel cell separator parts are stacked, and fuel cell separator
Membrane electrode assembly 30 is folded between the anode plate 10 of part and the cathode plate 20 of an adjacent fuel cell separator part.Or it should
Fuel cell pile includes multiple individual fuel cells being stacked.
Fuel cell pile according to an embodiment of the present invention, is conducive to equilibrium water heat distribution, and the performance of fuel cell it is excellent,
Long service life, processing cost is low, is conducive to industrialized production.
Embodiment two
Fuel cell separator part according to an embodiment of the present invention is described below with reference to Fig. 2, Fig. 4-Figure 20.
As shown in Fig. 2, Fig. 4-Figure 20, fuel cell separator part according to an embodiment of the invention include anode plate 10,
Cathode plate 20 and screen 60.
Wherein, the first side in anode reaction area 11 and the first side of cathodic reaction zone 21 are for connecting fuel cell electricity
The membrane electrode assembly 30 of heap.
Screen 60 is folded between the second side in anode edge area 12 and the second side in cathode edge area 22, and screen
60 are all connected with anode edge area 12 and cathode edge area 22.
For example anode reaction area 11 can be rectangle, anode edge area 12 can be rectangle frame, and cathodic reaction zone 21 can be with
For rectangle, cathode edge area 22 can be rectangle frame, and screen 60 is rectangle frame.It should be noted that above-mentioned rectangle and rectangle frame
It is not limited to standard rectangular and standard rectangular frame, such as in anode plate 10 shown in Figure 21, four of anode edge area 12 are outer
Notch can be equipped at angle.
It should be noted that the first side of anode plate 10, the first side in anode reaction area 11, anode edge area 12
First side is respectively positioned on the same side of anode plate 10, the second side of anode plate 10, the second side in anode reaction area 11, anode
The second side of marginal zone 12 is respectively positioned on the same side of anode plate 10;The first side of cathode plate 20, cathodic reaction zone 21
One side, cathode edge area 22 first side be respectively positioned on the same side of cathode plate 20, the second side of cathode plate 20, cathode are anti-
The second side of the second side, cathode edge area 22 of answering area 21 is respectively positioned on the same side of cathode plate 20;Cathode plate 20 and anode
The side of plate 10 being oppositely arranged with membrane electrode assembly 30 is first side, first side and second side back to setting.
It is understood that anode reaction area 11 and 21 face of cathodic reaction zone are arranged, electrochemical reaction is occurred mainly in
Between anode reaction area 11 and cathodic reaction zone 21, such anode reaction area 11 and the heat at cathodic reaction zone 21 are more, lead to
Setting screen 60 is crossed, anode plate 10 and cathode plate 20 can be separated, second side and the cathode plate 20 of such anode plate 10
Second side does not have to fitting, is formed with chamber between the second side in anode reaction area 11 and the second side of cathodic reaction zone 21
Body can radiate for anode reaction area 11 and cathodic reaction zone 21.
Two sides of screen 60 compress the second side in anode edge area 12 and the second side in cathode edge area 22 respectively
Face, two sides of screen 60 connect with the second side in anode edge area 12 and the sealing of the second side in cathode edge area 22 respectively
It connects, for example screen 60 is tightly connected by bonding, pressing or welding with anode edge area 12 and cathode edge area 22, screen 60
Connection type can be selected according to material, such as screen 60 be metal plate when, screen 60 is by way of being bonded or welded
It is tightly connected with anode edge area 12 and cathode edge area 22;Or screen 60 be plastic plate when, screen 60 by bonding or pressure
The mode of conjunction and anode edge area 12 and cathode edge area 22 are tightly connected;Or screen 60 be rubber slab when, screen 60 passes through
The mode and anode edge area 12 of bonding or pressing and cathode edge area 22 are tightly connected.
Fuel cell separator part according to an embodiment of the present invention, by between anode edge area 12 and cathode edge area 22
Screen 60 is set, the heat dissipation performance of fuel cell separator part can be effectively promoted, facilitates the cooling effect for promoting fuel cell
Fruit keeps the working condition of fuel cell more stable.
In some embodiments, as shown in Fig. 2, Fig. 4-Fig. 8, Fig. 9, Figure 11, Figure 13, Figure 15, Figure 17, Figure 18, fuel electricity
Pond separator can also include: cold side component 50, and cold side component 50 is folded in the second side and yin in anode reaction area 11
So that anode plate 10 is spaced apart with cathode plate 20 between the second side of pole reaction zone 21, two sides point of cold side component 50
The second side in anode reaction area 11 and the second side of cathodic reaction zone 21 are not compressed.Cold side component 50 is equipped with for coolant
The coolant flow passages of flowing, coolant is flowed by cold side component 50, to take away anode reaction area 11 and cathodic reaction zone
21 heat.
Screen 60 can surround cold side component 50, and screen 60 seals cold side component 50, prevents coolant from revealing, anode
Marginal zone 12 and cathode edge area 22 are equipped with the coolant inlet 75 separated by anode reaction area 11 and cathodic reaction zone 21 and cold
But agent outlet 76, as shown in Figure 4-Figure 7, screen 60 are equipped with screen runner 61, and coolant inlet 75 passes through corresponding screen runner
61 are connected to coolant flow passages, and coolant outlet 76 is connected to by corresponding screen runner 61 with coolant flow passages.
The a part of screen runner 61 as gas and liquid flow path, screen runner 61 can be to be added on screen 60 by machine
Or the groove that the modes such as punching press generate, anode edge area 12, screen 60, cathode edge area 22, which are formed, fits closely face, can stop
Gas passes through, and by getting screen runner 61 in the opposite position of screen 60, coolant can be guided to pass in and out.
Screen 60 can be metal plate, and screen runner 61 is by machining or is stamped and formed out;Or screen 60 can be modeling
Flitch, screen runner 61 pass through injection molding or punching molding;Or screen 60 can be rubber slab, screen runner 61 passes through mould
Molded or injection moulding.Cold side component 50 is made of fibrous material or metal material or rubber material.
The internal perisporium of screen 60 is connected with the periphery wall of cold side component 50, and the outer profile of cold side component 50 can be square
Shape, screen 60 can be rectangle frame.
As shown in Fig. 8, Fig. 9, Figure 11, Figure 13, Figure 15, Figure 17, Figure 18, the thickness of screen 60 can be with cold side component 50
It is equal, the thickness of cold side component 50 can also be greater than, specifically needed according to the shape of anode plate 10 and cathode plate 20 come really
Recognize.
Certainly, the thickness of screen 60 can be less than cold side component 50 thickness, such as by Figure 17 cathode plate 20 it is close
Sealing groove 221 can make the thickness of screen 60 be less than the thickness of cold side component 50, need to only meet two of screen 60 to lower recess
Side compresses cathode edge area 22 and anode edge area 10 and realizes sealing.
As shown in Fig. 4-Figure 20, the invention also discloses a kind of individual fuel cells, which includes: anode
Plate 10, cathode plate 20, membrane electrode assembly 30 and screen 60.
Wherein, anode plate 10 includes anode reaction area 11 and the anode edge area 12 around anode reaction area 11, cathode plate
20 include cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and membrane electrode assembly 30 is folded in anode plate 10
First side and cathode plate 20 first side between, screen 60 is folded in the second side and cathode-side in anode edge area 12
Between the second side in edge area 22, and screen 60 is tightly connected with anode edge area 12 and cathode edge area 22.
Wherein cathode plate 20, cathode plate 20, screen 60 structure can be with the description in reference fuel battery separators, herein
It repeats no more.
Individual fuel cells according to an embodiment of the present invention, by being set between anode edge area 12 and cathode edge area 22
Set screen 60, the perfect heat-dissipating of individual fuel cells, working condition is more stable.
In some embodiments, the sealing of individual fuel cells can take following form: anode plate 10 includes that anode is anti-
Area 11 and the anode edge area 12 around anode reaction area 11 are answered, the first side in anode edge area 12 is equipped with anode seal slot
121;Cathode plate 20 includes cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and the of cathode edge area 22
One side is equipped with cathode seal groove 221;Membrane electrode assembly 30 includes the 31 (Gas of anode gas circuit diffusion layer being stacked
Diffusion layer, abbreviation GDL), membrane electrode 33 (Membrane Electrode Assembly, abbreviation MEA), cathode gas
Road diffusion layer 32 (Gas diffusion layer, abbreviation GDL), membrane electrode 33 stretch out anode gas circuit diffusion layer 31 and cathode gas
At least partly outer of road diffusion layer 32 is provided with insulation frame 34, and insulation frame 34 is folded in close set on anode seal slot 121 and cathode
Between the sealing element 222 of sealing groove 221, to realize the sealing of individual fuel cells.Certainly, the sealing of individual fuel cells may be used also
Think other structures, these sealing means will be described in detail later.
The invention also discloses a kind of fuel cell pile, which includes: multiple such as above-mentioned any reality
The fuel cell separator part and membrane electrode assembly 30 of example are applied, multiple fuel cell separator parts are stacked, and fuel cell separator
Membrane electrode assembly 30 is folded between the anode plate 10 of part and the cathode plate 20 of an adjacent fuel cell separator part.Or it should
Fuel cell pile includes multiple individual fuel cells being stacked.
Fuel cell pile according to an embodiment of the present invention, by being set between anode edge area 12 and cathode edge area 22
Set screen 60, the perfect heat-dissipating of fuel cell pile, working condition is more stable.
Embodiment three
Fuel cell separator part according to an embodiment of the present invention is described below with reference to Fig. 2, Fig. 9-Figure 20.
As shown in Fig. 2, Fig. 9-Figure 18, fuel cell separator part according to an embodiment of the invention include anode plate 10,
Cathode plate 20 and gas circuit component 40.
Wherein, the first side of anode plate 10 is equipped with anode flow channel 111, and the first side of cathode plate 20 is equipped with cathode flow channels
211, the second side of cathode plate 20 and the second side of anode plate 10 are oppositely arranged, and cathode plate 20 is arranged in gas circuit component 40
First side, and cathode stream can be completely covered at least part of 40 covered cathode runner 211 of gas circuit component, gas circuit component 40
Road 211, can also covered cathode runner 211 a part.
Gas circuit component 40 can satisfy gas and water can by the combination of gas circuit component 40 and cathode flow channels 211 by demand
Greatly to enhance the gas reaction space of cathode side, the gas free air space of cathode side is set to be greater than anode-side, in this way, solving
Reaction compartment different problems needed for hydrogen-oxygen side, and cathode flow channels 211 and the structure of anode flow channel 111 can design it is basic
It is identical, to guarantee that the volume of fuel cell separator part can maintain lesser range, and anode plate 10 and cathode plate 20
Production technology is simpler.
Fuel cell separator part according to an embodiment of the present invention, by the knot that gas circuit component 40 and cathode flow channels 211 is arranged
It closes, can effectively enhance the gas reaction space of cathode side, reduce the processing cost of fuel cell separator part, be conducive to industrial metaplasia
It produces.
As shown in Fig. 9, Figure 11, Figure 13, Figure 15, Figure 17, Figure 18, anode plate 10 is including anode reaction area 11 and around anode
The anode edge area 12 of reaction zone 11, anode flow channel 111 are set to the first side in anode reaction area 11;Cathode plate 20 includes cathode
Reaction zone 21 and the cathode edge area 22 for surrounding cathodic reaction zone 21, cathode flow channels 211 are set to the first side of cathodic reaction zone 21
The first side face of face, gas circuit component 40 and cathodic reaction zone 21 is stacked.
For example anode reaction area 11 can be rectangle, anode edge area 12 can be rectangle frame, and cathodic reaction zone 21 can be with
For rectangle, cathode edge area 22 can be rectangle frame, and screen 60 is rectangle frame.It should be noted that above-mentioned rectangle and rectangle frame
It is not limited to standard rectangular and standard rectangular frame, such as in anode plate 10 shown in Figure 21, four of anode edge area 12 are outer
Notch can be equipped at angle.
Cathode flow channels 211 include the groove set on 21 first side of cathodic reaction zone, and it is anti-that gas circuit component 40 is supported in cathode
Answer the region for not setting cathode flow channels 211 of 21 first side of area.Gas circuit component 40 is not set with 21 first side of cathodic reaction zone
The region of cathode flow channels 211 can be bonded setting.
It should be noted that the first side of anode plate 10, the first side in anode reaction area 11, anode edge area 12
First side is respectively positioned on the same side of anode plate 10, the second side of anode plate 10, the second side in anode reaction area 11, anode
The second side of marginal zone 12 is respectively positioned on the same side of anode plate 10;The first side of cathode plate 20, cathodic reaction zone 21
One side, cathode edge area 22 first side be respectively positioned on the same side of cathode plate 20, the second side of cathode plate 20, cathode are anti-
The second side of the second side, cathode edge area 22 of answering area 21 is respectively positioned on the same side of cathode plate 20;Cathode plate 20 and anode
The side of plate 10 being oppositely arranged with membrane electrode assembly 30 is first side, first side and second side back to setting.
As shown in Fig. 2, gas circuit component 40 can be plate, and gas circuit component 40 include multiple through-holes, through-hole for supply,
Water passes through.The complex fiber material or metal material or rubber material that gas circuit component 40 is corroded by acid resistance are made.
As shown in Fig. 9-Figure 18, the first side of cathodic reaction zone 21 relative to cathode edge area 22 first side towards yin
The second side recess of pole plate 20 is arranged to form deep gouge, and gas circuit component 40 is installed on deep gouge.Entire fuel can be compressed in this way
The thickness of battery separators.The first side of cathodic reaction zone 21 and the junction of the first side in cathode edge area 22 are formed as
Stairstepping, gas circuit component 40 pass through the ladder between the first side of cathodic reaction zone 21 and the first side in cathode edge area 22
Face 223 positions, and the cascaded surface 223 between the first side of cathodic reaction zone 21 and the first side in cathode edge area 22 is looped around
The peripheral wall of gas circuit component 40 is outer to position gas circuit component 40.
It is understood that when processing gas circuit component 40 and cathode plate 20, by the shape and cathode plate of gas circuit component 40
20 cathodic reaction zone 21 is identical, and controls the machining accuracy of deep gouge, and such gas circuit component 40 can be embedded just below deep gouge, pass through
The deep gouge of cathode plate 20 is directly realized by the positioning of gas circuit component 40.It, can be equal by deep gouge and gas circuit component 40 in order to simplify processing
It is processed into cuboid, gas circuit component 40 can be effectively realized by the cooperation of the peripheral wall of the peripheral wall and deep gouge of gas circuit component 40
Positioning.
As shown in Fig. 9-Figure 20, the invention also discloses a kind of individual fuel cells, which includes: anode
Plate 10, cathode plate 20, membrane electrode assembly 30 and gas circuit component 40.
Wherein, the first side of anode plate 10 is equipped with anode flow channel 111, and the first side of cathode plate 20 is equipped with cathode flow channels
211, membrane electrode assembly 30 and gas circuit component 40 are folded between the first side of anode plate 10 and the first side of cathode plate 20,
And gas circuit component 40 is located at close to the side of cathode plate 20, at least covered cathode runner 211 of gas circuit component 40.
Cathode plate 20, cathode plate 20, gas circuit component 40 structure can be with the description in reference fuel battery separators, herein
It repeats no more.
Individual fuel cells according to an embodiment of the present invention, by the way that the combination of gas circuit component 40 and cathode flow channels 211 is arranged,
The gas reaction space that cathode side can effectively be enhanced, reduces the processing cost of individual fuel cells, is conducive to industrialized production.
Membrane electrode assembly 30 can be formed as one with gas circuit component 40.Gas circuit is positioned by the deep gouge of cathode plate 20 in this way
Component 40 can position membrane electrode assembly 30 simultaneously, thus simplify the assembly technology of individual fuel cells.
Membrane electrode assembly 30 and gas circuit component 40 can certainly be processed as to two individual components, first by gas when assembling
Road component 40 is assembled into one in cathode plate 20, then is realized by the cooperation of membrane electrode assembly 30 and gas circuit component 40 to membrane electrode
The positioning of component 30.
In some embodiments, the sealing of individual fuel cells can take following form: anode plate 10 includes that anode is anti-
Area 11 and the anode edge area 12 around anode reaction area 11 are answered, the first side in anode edge area 12 is equipped with anode seal slot
121;Cathode plate 20 includes cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and the of cathode edge area 22
One side is equipped with cathode seal groove 221;Membrane electrode assembly 30 include be stacked anode gas circuit diffusion layer 31, membrane electrode 33,
Cathode gas circuit diffusion layer 32, membrane electrode 33 stretch out at least partly peripheral hardware of anode gas circuit diffusion layer 31 and cathode gas circuit diffusion layer 32
It is equipped with insulation frame 34, insulation frame 34 is folded between anode seal slot 121 and the sealing element 222 of cathode seal groove 221, from
And realize the sealing of individual fuel cells.Certainly, the sealing of individual fuel cells can also be other structures, these sealing means
It will be described in detail later.
The invention also discloses a kind of fuel cell pile, which includes: multiple such as above-mentioned any reality
The fuel cell separator part and membrane electrode assembly 30 of example are applied, multiple fuel cell separator parts are stacked, and fuel cell separator
Membrane electrode assembly 30 is folded between the anode plate 10 of part and the gas circuit component 40 of an adjacent fuel cell separator part.Or
The fuel cell pile includes multiple individual fuel cells being stacked.Or the fuel cell pile includes that multiple stackings are set
The individual fuel cells set.
Fuel cell pile according to an embodiment of the present invention, by the way that the combination of gas circuit component 40 and cathode flow channels 211 is arranged,
The gas reaction space that cathode side can effectively be enhanced, reduces the processing cost of fuel cell pile, is conducive to industrialized production.
Example IV
Fuel cell separator part according to an embodiment of the present invention is described below with reference to Fig. 2, Fig. 9-Figure 20.
As shown in Fig. 2, Fig. 9-Figure 20, fuel cell separator part according to an embodiment of the invention include anode plate 10,
Cathode plate 20 and gas circuit component 40.
Wherein, the first side of anode plate 10 is equipped with anode flow channel 111, and anode plate 10 includes anode reaction area 11 and surround
The anode edge area 12 in anode reaction area 11, anode flow channel 111 are set to the first side in anode reaction area 11;Cathode plate 20 includes
The of cathodic reaction zone 21 and cathode edge area 22 around cathodic reaction zone 21, the second side of cathode plate 20 and anode plate 10
Two side faces are oppositely arranged.
It should be noted that the first side of anode plate 10, the first side in anode reaction area 11, anode edge area 12
First side is respectively positioned on the same side of anode plate 10, the second side of anode plate 10, the second side in anode reaction area 11, anode
The second side of marginal zone 12 is respectively positioned on the same side of anode plate 10;The first side of cathode plate 20, cathodic reaction zone 21
One side, cathode edge area 22 first side be respectively positioned on the same side of cathode plate 20, the second side of cathode plate 20, cathode are anti-
The second side of the second side, cathode edge area 22 of answering area 21 is respectively positioned on the same side of cathode plate 20;Cathode plate 20 and anode
The side of plate 10 being oppositely arranged with membrane electrode assembly 30 is first side, first side and second side back to setting.
Anode reaction area 11 can be rectangle, and anode edge area 12 can be rectangle frame, and cathodic reaction zone 21 can be square
Shape, cathode edge area 22 can be rectangle frame, and screen 60 is rectangle frame.It should be noted that above-mentioned rectangle and rectangle frame are not
It is limited to standard rectangular and standard rectangular frame, such as in anode plate 10 shown in Figure 21, at four exterior angles in anode edge area 12
Notch can be equipped with.
As shown in Fig. 9-Figure 18, the first side of cathodic reaction zone 21 relative to cathode edge area 22 first side towards yin
To form deep gouge, gas circuit component 40 is arranged in deep gouge, 21 portion concave of cathodic reaction zone for the second side recess setting of pole plate 20
Design can provide installation space for gas circuit component 40, increase the reaction volume of cathode side.
Gas circuit component 40 can be positioned by the peripheral wall of deep gouge and be assembled.
It is understood that when processing gas circuit component 40 and cathode plate 20, by the shape and cathode plate of gas circuit component 40
20 cathodic reaction zone 21 is identical, and controls the machining accuracy of deep gouge, and such gas circuit component 40 can be embedded just below deep gouge, pass through
The deep gouge of cathode plate 20 is directly realized by the positioning of gas circuit component 40, and cathode flow channels 211 can be completely covered in gas circuit component 40.
In some embodiments, the junction of the first side of cathodic reaction zone 21 and the first side in cathode edge area 22
Be formed as stairstepping, gas circuit component 40 passes through between the first side of cathodic reaction zone 21 and the first side in cathode edge area 22
Cascaded surface 223 it is vertical with the first side of cathodic reaction zone 21, the peripheral wall that cascaded surface 223 is looped around gas circuit component 40 is outer with fixed
Position gas circuit component 40.
In order to simplify processing, deep gouge and gas circuit component 40 can be processed into cuboid, pass through gas circuit component 40
The cooperation of the peripheral wall of peripheral wall and deep gouge can effectively realize the positioning of gas circuit component 40.
Fuel cell separator part according to an embodiment of the present invention, by the way that matching for above-mentioned gas circuit component 40 and cathode plate 20 is arranged
Conjunction mode can effectively realize the positioning of gas circuit component 40, can simplify the assembly technology of fuel cell separator part in this way.
In some embodiments, gas circuit component 40 with a thickness of a, the depth of deep gouge is h, and h can also be cascaded surface 223
Highly, meet: 0.5≤a/h≤1.5.It should be noted that thickness said herein and depth, for along fuel cell separator part
Stacking direction.Inventor is had found by many experiments, and the depth of the thickness of gas circuit component 40, deep gouge is limited to above range
When, the processability of gas circuit component 40 and cathode plate 20 can not be influenced while guaranteeing the positioning accuracy of gas circuit component 40
Energy.Certainly, the better effect when depth of deep gouge is equal or close with the thickness of gas circuit component 40, such as 0.9≤a/h≤1.1, or
Person a=h.
In some embodiments, gas circuit component 40 is plate, and including multiple through-holes, through-hole for gas and water for passing through.Gas
The complex fiber material or metal material or rubber material that road component 40 is corroded by acid resistance are made.
In some embodiments, cathodic reaction zone 21 can be plate shaped, i.e., cathodic reaction zone 21 can not set cathode stream
Road 211, deep gouge out easy to process in this way, first side court of the first side in cathode edge area 22 relative to cathodic reaction zone 21
The direction protrusion of second side far from cathode plate 20.The structure of the cathode plate 20 of this structure is simple, easy to process.Certainly,
Cathode plate 20 can also be other structures, for example cathodic reaction zone 21 can be the plate of concave-convex type.
As shown in Fig. 9-Figure 20, the invention also discloses a kind of individual fuel cells, which includes: anode
Plate 10, cathode plate 20, membrane electrode assembly 30 and gas circuit component 40.
Wherein, the first side of anode plate 10 is equipped with anode flow channel 111, and cathode plate 20 includes cathodic reaction zone 21 and surround
The cathode edge area 22 of cathodic reaction zone 21, first side of the first side of cathodic reaction zone 21 relative to cathode edge area 22
Second side recess towards cathode plate 20 is arranged to form deep gouge, and membrane electrode assembly 30 and gas circuit component 40 are folded in anode plate 10
First side and cathode plate 20 first side between, gas circuit component 40 is arranged in deep gouge, and gas circuit component 40 passes through deep gouge
Peripheral wall positioning.
Cathode plate 20, cathode plate 20, gas circuit component 40 structure can be with the description in reference fuel battery separators, herein
It repeats no more.
Individual fuel cells according to an embodiment of the present invention, by the cooperation that above-mentioned gas circuit component 40 and cathode plate 20 is arranged
Mode can effectively realize the positioning of gas circuit component 40, can simplify the assembly technology of individual fuel cells in this way.
With reference to Fig. 9, membrane electrode assembly 30 includes anode gas circuit diffusion layer 31, the membrane electrode 33, cathode gas circuit being stacked
Diffusion layer 32, membrane electrode 33 are folded between anode gas circuit diffusion layer 31 and cathode gas circuit diffusion layer 32, anode gas circuit diffusion layer
31 are folded in membrane electrode 33 between anode reaction area 11, and cathode gas circuit diffusion layer 32 is bonded with gas circuit component 40, cathode gas circuit
The sum of thickness of diffusion layer 32 and gas circuit component 40 is b, and the depth of deep gouge is h, is met: 1≤b/h.That is, cathode gas circuit
The sum of thickness of diffusion layer 32 and gas circuit component 40 cannot be less than the depth of deep gouge, can prevent the top of cathode edge area 22 from arriving in this way
Membrane electrode 33.
In some embodiments, membrane electrode assembly 30 is formed as one with gas circuit component 40.Pass through cathode plate 20 in this way
Deep gouge positioning gas circuit component 40 can position membrane electrode assembly 30 simultaneously, thus simplify the assembly technology of individual fuel cells.
Membrane electrode assembly 30 and gas circuit component 40 can certainly be processed as to two individual components, first by gas when assembling
Road component 40 is assembled into one in cathode plate 20, then is realized by the cooperation of membrane electrode assembly 30 and gas circuit component 40 to membrane electrode
The positioning of component 30.
In some embodiments, the sealing of individual fuel cells can take following form: anode plate 10 includes that anode is anti-
Area 11 and the anode edge area 12 around anode reaction area 11 are answered, the first side in anode edge area 12 is equipped with anode seal slot
121;Cathode plate 20 includes cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and the of cathode edge area 22
One side is equipped with cathode seal groove 221;Membrane electrode assembly 30 include be stacked anode gas circuit diffusion layer 31, membrane electrode 33,
Cathode gas circuit diffusion layer 32, membrane electrode 33 stretch out at least partly peripheral hardware of anode gas circuit diffusion layer 31 and cathode gas circuit diffusion layer 32
It is equipped with insulation frame 34, insulation frame 34 is folded between anode seal slot 121 and the sealing element 222 of cathode seal groove 221, from
And realize the sealing of individual fuel cells.Certainly, the sealing of individual fuel cells can also be other structures, these sealing means
It will be described in detail later.
The invention also discloses a kind of fuel cell pile, which includes: multiple such as above-mentioned any reality
The fuel cell separator part and membrane electrode assembly 30 of example are applied, multiple fuel cell separator parts are stacked, and fuel cell separator
Membrane electrode assembly 30 is folded between the anode plate 10 of part and the gas circuit component 40 of an adjacent fuel cell separator part.Or
The fuel cell pile includes multiple individual fuel cells being stacked.Or the fuel cell pile includes that multiple stackings are set
The individual fuel cells set.
Fuel cell pile according to an embodiment of the present invention, by the cooperation that above-mentioned gas circuit component 40 and cathode plate 20 is arranged
Mode can effectively realize the positioning of gas circuit component 40, can simplify the assembly technology of fuel cell pile in this way.
Embodiment five
Fuel cell separator part according to an embodiment of the present invention is described below with reference to Fig. 1, Fig. 3, Figure 21, Figure 22.
As shown in Fig. 1, Fig. 3, Figure 21, Figure 22, fuel cell separator part includes: reaction zone and marginal zone, and marginal zone is surround
Reaction zone, such as reaction zone can be rectangle, and marginal zone can be rectangle frame, it should be noted that above-mentioned rectangle and rectangle frame
It is not limited in standard rectangular and standard rectangular frame, such as fuel cell separator part shown in Fig. 3, four exterior angles of marginal zone
Place can be equipped with notch.
Marginal zone is equipped with escape groove 77, and escape groove 77 is for being pressed fuel cell separator part, and escape groove 77 is along fuel cell
The thickness direction of separator runs through marginal zone, and distance of the escape groove 77 close to the edge of reaction zone to reaction zone is c, meets: c >=
20mm。
It is understood that fuel cell pile is stacked structure, fuel cell separator part is also stacked structure, will fired
When material battery separators are stacked as fuel cell pile, need to compress fuel cell separator part using fastener, so that each
Fuel cell separator part can fit closely, and fastener is through escape groove 77 to run through combustion on the stacking direction of fuel cell pile
Expect battery stack.
By the way that escape groove 77 is directly arranged in marginal zone, thus it is pressed frame without in addition setting, can greatly simplifies
Press mounting structure, and since fastening force can directly act on fuel cell separator part, apply relatively smaller fastening force so i.e.
The press fitting for meeting sealing can be achieved, and the pressure for being pressed each region of post fuel battery stack is more balanced, fuel cell electricity
The performance of heap is more preferable.
Distance c of the escape groove 77 close to the edge of reaction zone to reaction zone is the edge to the edge of reaction zone of escape groove 77
The shortest distance, which influences the sealing effect of reaction zone.Inventor is had found by many experiments, is limited escape groove 77 and is leaned on
The edge in proximal response area to reaction zone distance c after above range, as setting escape groove 77 caused by marginal zone be thinned
Effect does not interfere with the sealing to reaction zone.Such as c=25mm perhaps c=30mm or c=40mm.
Fuel cell separator part according to an embodiment of the present invention, by the way that keeping away for above structure form is directly arranged in reaction zone
It allows slot 77, facilitates the press-loading process for simplifying fuel cell pile, do not influence the sealing effect of reaction zone, and make fuel cell
The pressure of each region of pile is more balanced.
In some embodiments, as shown in Fig. 1, Fig. 3, Figure 21, Figure 22, escape groove 77 deviates from the one of reaction zone in marginal zone
Side is opened wide, that is to say, that escape groove 77 is not closed-loop type, and escape groove 77 is equivalent to be lacked what the outer side edges edge of reaction zone opened up
Mouthful, in this way, the escape groove 77 for meeting target size can be arranged, and guarantee evacuation in the case where the limited width of reaction zone
Distance c of the slot 77 close to the edge of reaction zone to reaction zone is sufficiently large, does not influence the sealing effect of reaction zone.In press fitting fuel electricity
When the pile of pond, the escape groove 77 of above-mentioned shape can be fastener not directly through fuel cell separator part itself, will not be to exhausted
Edge and sealing impact, and since the position of escape groove 77 is in inside separator edge, so as to reduce required fastening
Power, it is more uniform with season fuel cell pile pressure.
As shown in Fig. 1, Fig. 3, Figure 21, Figure 22, the boundary line of escape groove 77 and marginal zone is arc, and fastener usually has
Cylindrical cross-section, setting arc boundary line can preferably with appended claims.Escape groove 77 can be opening in diagram on one side
The semicircle opened, or arch, crescent, or be the open polygon in one side, such as rectangle, or be irregular shape
Shape.
As shown in figure 3, marginal zone include: two along the first edge area that first direction is oppositely arranged, two along second party
To the second edge area being oppositely arranged, each second edge area is equipped with escape groove 77.Escape groove 77 is usually symmetrical, with
Keep pressure assembling force more balanced.The number of escape groove 77 is even numbers, and two be not limited in diagram, can also be more.
As shown in figure 3, one in Liang Ge first edge area is equipped with coolant outlet 76 and fuel gas inlet 71, two the
Another in one marginal zone is equipped with coolant inlet 75 and fuel gas outlet 72;One in Liang Ge second edge area is equipped with oxygen
Agent import 73, another in Liang Ge second edge area are equipped with oxidant outlet 74.Fuel gas inlet 71 is positioned below, fuel
Gas outlet 72 is located at top, and hydrogen from top to bottom, is conducive to the wetting of film.That is, escape groove 77 setting oxidant into
Side where outlet, escape groove 77 are located between adjacent two oxidant inlets 73 or oxidant outlet 74.
Since the inlet and outlet number of oxidant is more, the gross area is big, and escape groove 77 is designed at this, to oxidant inlet and outlet
The gross area influences smaller.It should be noted that when designing escape groove 77, the oxidant outlet 74 as brought by escape groove 77
And the reduction volume of the total area of oxidant inlet 73 be not more than no escape groove 77 when the gross area 1/10th.
In some embodiments, as shown in figure 21 and figure, fuel cell separator part includes anode plate 10 and cathode plate 20.
Anode plate 10 includes anode reaction area 11 and anode edge area 12, and anode edge area 12 is arranged around anode reaction area 11, cathode
Plate 20 includes cathodic reaction zone 21 and cathode edge area 22, and cathode edge area 22 is arranged around cathodic reaction zone 21, anode reaction
The first side in area 11 and the first side of cathodic reaction zone 21 are used to connect the membrane electrode assembly 30 of fuel cell pile.Anode
Marginal zone 12 and cathode edge area 22 are equipped with escape groove 77, and the escape groove 77 in anode edge area 12 and cathode edge area 22
The setting of 77 face of escape groove.
Fuel cell separator part further includes screen 60, and screen 60 is folded in the second side and cathode-side in anode edge area 12
Between the second side in edge area 22, and screen 60 is all connected with anode edge area 12 and cathode edge area 22, and screen 60 also is provided with
Escape groove 77, the escape groove 77 of screen 60 and 77 face of escape groove in cathode edge area 22 are arranged.
Fuel cell separator part further includes cold side component 50, and cold side component 50 is folded in the second of anode reaction area 11
So that anode plate 10 is spaced apart with cathode plate 20 between side and the second side of cathodic reaction zone 21, the two of cold side component 50
A side compresses the second side in anode reaction area 11 and the second side of cathodic reaction zone 21 respectively.Cold side component 50 is equipped with
For the coolant flow passages of coolant flowing, coolant is flowed by cold side component 50, to take away anode reaction area 11 and yin
The heat of pole reaction zone 21.
Screen 60 can surround cold side component 50, and screen 60 seals cold side component 50, prevents coolant from revealing, anode
Marginal zone 12 and cathode edge area 22 are equipped with coolant inlet 75 and coolant outlet 76, and as shown in Figure 4-Figure 7, screen 60 is equipped with
Screen runner 61, coolant inlet 75 are connected to by corresponding screen runner 61 with coolant flow passages, and coolant outlet 76 passes through
Corresponding screen runner 61 is connected to coolant flow passages.
Since above-mentioned cold side component 50 is arranged, in this way it is not necessary that coolant flow channel is arranged in marginal zone, there can be enough skies
Between escape groove 77 is set, and the design of escape groove 77 does not influence cooling flowing path.
As shown in Fig. 1, Fig. 3, Figure 21, Figure 22, the invention also discloses a kind of individual fuel cells, the individual fuel cells
It include: reaction zone and the marginal zone around reaction zone, marginal zone is equipped with the escape groove 77 for being pressed fuel cell separator part, keeps away
Allow the slot 77 along the thickness direction of individual fuel cells through marginal zone, escape groove 77 close to the edge of reaction zone to reaction zone away from
From for c, meet: c >=20mm.
Reaction zone, marginal zone, escape groove 77 structure can be no longer superfluous herein with the description in reference fuel battery separators
It states.
Individual fuel cells according to an embodiment of the present invention, by the evacuation that above structure form is directly arranged in reaction zone
Slot 77 facilitates the press-loading process for simplifying individual fuel cells, does not influence the sealing effect of reaction zone, and makes fuel cell electric
The pressure of each region of heap is more balanced.
In some embodiments, individual fuel cells include anode plate 10 and cathode plate 20.Anode plate 10 includes that anode is anti-
Area 11 and anode edge area 12 are answered, anode edge area 12 is arranged around anode reaction area 11, and cathode plate 20 includes cathodic reaction zone
21 and cathode edge area 22, cathode edge area 22 is arranged around cathodic reaction zone 21, the first side and yin in anode reaction area 11
The first side of pole reaction zone 21 is used to connect the membrane electrode assembly 30 of fuel cell pile.Anode edge area 12 and cathode edge
Area 22 is equipped with escape groove 77, and the escape groove 77 in anode edge area 12 and 77 face of escape groove in cathode edge area 22 are arranged.
In some embodiments, the sealing of individual fuel cells can take following form: anode plate 10 includes that anode is anti-
Area 11 and the anode edge area 12 around anode reaction area 11 are answered, the first side in anode edge area 12 is equipped with anode seal slot
121;Cathode plate 20 includes cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and the of cathode edge area 22
One side is equipped with cathode seal groove 221;Membrane electrode assembly 30 include be stacked anode gas circuit diffusion layer 31, membrane electrode 33,
Cathode gas circuit diffusion layer 32, membrane electrode 33 stretch out at least partly peripheral hardware of anode gas circuit diffusion layer 31 and cathode gas circuit diffusion layer 32
It is equipped with insulation frame 34, insulation frame 34 is folded between anode seal slot 121 and the sealing element 222 of cathode seal groove 221, from
And realize the sealing of individual fuel cells.Certainly, the sealing of individual fuel cells can also be other structures, these sealing means
It will be described in detail later.
The invention also discloses a kind of fuel cell pile, which includes: multiple such as above-mentioned any reality
The fuel cell separator part and membrane electrode assembly 30 of example are applied, multiple fuel cell separator parts are stacked, and fuel cell separator
Membrane electrode assembly 30, connector are folded between the anode plate 10 of part and the cathode plate 20 of an adjacent fuel cell separator part
Through escape groove 77 fuel cell separator part, membrane electrode assembly 30 to be pressed.
Fuel cell pile according to an embodiment of the present invention, by the evacuation that above structure form is directly arranged in reaction zone
Slot 77 facilitates the press-loading process for simplifying fuel cell pile, does not influence the sealing effect of reaction zone, and makes fuel cell electric
The pressure of each region of heap is more balanced.
Embodiment six
Individual fuel cells according to an embodiment of the present invention are described below with reference to Fig. 1-Fig. 2 and Fig. 9-Figure 10.
As shown in Fig. 1-Fig. 2 and Fig. 9-Figure 10, individual fuel cells according to an embodiment of the invention include: anode plate
10, cathode plate 20, membrane electrode assembly 30 and sealing element 222.
Wherein, anode plate 10 includes anode reaction area 11 and anode edge area 12, and anode edge area 12 is around anode reaction
Area 11 is arranged, and cathode plate 20 includes cathodic reaction zone 21 and cathode edge area 22, and cathode edge area 22 is around cathodic reaction zone 21
Setting.
Membrane electrode assembly 30 includes anode gas circuit diffusion layer 31, membrane electrode 33, the cathode gas circuit diffusion layer 32 being stacked,
Membrane electrode assembly 30 is folded between the first side of anode plate 10 and the first side of cathode plate 20, and anode gas circuit diffusion layer
31 with 11 face of anode reaction area, cathode gas circuit diffusion layer 32 and 21 face of cathodic reaction zone, 31 sandwiched of anode gas circuit diffusion layer
Between the first side and membrane electrode 33 in anode reaction area 11, cathode gas circuit diffusion layer 32 is folded in the of cathodic reaction zone 21
Between one side and membrane electrode 33.
It should be noted that the first side of anode plate 10, the first side in anode reaction area 11, anode edge area 12
First side is respectively positioned on the same side of anode plate 10, the second side of anode plate 10, the second side in anode reaction area 11, anode
The second side of marginal zone 12 is respectively positioned on the same side of anode plate 10;The first side of cathode plate 20, cathodic reaction zone 21
One side, cathode edge area 22 first side be respectively positioned on the same side of cathode plate 20, the second side of cathode plate 20, cathode are anti-
The second side of the second side, cathode edge area 22 of answering area 21 is respectively positioned on the same side of cathode plate 20;Cathode plate 20 and anode
The side of plate 10 being oppositely arranged with membrane electrode assembly 30 is first side, first side and second side back to setting.
Following form is taken in the sealing of individual fuel cells: the first side in anode edge area 12 is equipped with anode seal slot
121, the first side in cathode edge area 22 is equipped with cathode seal groove 221, and membrane electrode 33 stretches out anode gas circuit diffusion layer 31 and yin
Pole gas circuit diffusion layer 32 is clamped at least partially by the sealing element 222 for being set to anode seal slot 121 and cathode seal groove 221.
Anode seal slot 121 can be arranged with cathode seal groove 221 with face, and when assembly, membrane electrode assembly 30 is placed in phase
Pair anode plate 10 and cathode plate 20 between, or membrane electrode assembly 30 is placed between opposite fuel cell separator part, it is right
Stacking direction applies fastening force and is squeezed sealing element 222 and realize sealing.Sealing element 222 can be selected with corrosion resistance
Flexible material, such as hardness is less than the silicon rubber of A80, and sealing element 222 is seal line made of preformed member or dispensing.
It should be noted that in the related technology, the sealing of individual fuel cells be membrane electrode 33 surrounding add by
Insulate frame made of compressible insulating materials, but this sealing means, when bearing the high pressure of battery work, insulate frame sheet
The difference of body and 33 material properties of membrane electrode easily leads to the deformation and displacement of insulation frame, and then influences battery performance.In addition to this,
The production of insulation frame also increases the complex procedures degree of fuel cell module in itself.
Individual fuel cells according to an embodiment of the present invention directly push down membrane electrode by the way that seal is arranged in seal groove
33 method realizes positioning, sealing and insulation, enormously simplifies process.
In some embodiments, anode reaction area 11 can be rectangle, and anode edge area 12 can be rectangle frame;Cathode plate
20 include cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and cathode flow channels 211 are set to cathodic reaction zone
21 first side, such as cathodic reaction zone 21 can be rectangle, and cathode edge area 22 can be rectangle frame, need to illustrate
It is that above-mentioned rectangle and rectangle frame are not limited to standard rectangular and standard rectangular frame, such as in anode plate 10 shown in Figure 21, sun
Notch can be equipped at four exterior angles of pole marginal zone 12.Anode seal slot 121 is arranged around anode reaction area 11, cathode sealing
Slot 221 is arranged around cathodic reaction zone 21, anode seal slot 121 and cathode seal groove 221 can have rectangular cross section or
The cross section of trapezoidal cross-section or arc.
In some embodiments, anode reaction area is arrived on a side edge in the close anode reaction area 11 of anode seal slot 121
11 distance is d, and a side of the close cathodic reaction zone 21 of cathode seal groove 221 is e along the distance to cathodic reaction zone 21,
Meet: d≤15mm, e≤15mm.It should be noted that d and e can be equal.In some embodiments, d=10mm, e=10mm.
It should be noted that inventor is had found by many experiments, in above-mentioned sealing means, due to membrane electrode 33 itself
Fragility, if the distance of seal groove to reaction zone is excessive, it will cause the ruptures of film.The distance of seal groove to reaction zone is limited
Be set to above range, can while realizing sealing not damaged membrane electrode 33.
As shown in Figure 2 and Figure 9, individual fuel cells further include: screen 60, screen 60 are located at the second side in cathode edge area
Face, and screen 60 is equipped with the screen runner 61 for the coolant that circulates, guiding region of the screen runner 61 as coolant.Screen 60
Two sides compress the second side in cathode edge area 22 and the anode edge area of adjacent individual fuel cells respectively
12 second side, two sides of screen 60 respectively with the second side in anode edge area 12 and cathode edge area 22 second
Side is tightly connected, for example screen 60 is sealed by bonding, pressing or welding with anode edge area 12 and cathode edge area 22
Connection.Screen runner 61 can be the groove that is added on screen 60 by machine or the modes such as punching press generate, anode edge area 12, screen
60, cathode edge area 22 forms and fits closely face, gas can be stopped to pass through, and by getting grid in the opposite position of screen 60
Plate runner 61 can guide coolant to pass in and out.
Individual fuel cells further include: cold side component 50, cold side component 50 are located at the second side of cathodic reaction zone,
For screen 60 around cold side component 50, cold side component 50 is equipped with coolant flow passages flow for coolant, screen runner 61 and
Coolant flow passages connection.Cold side component 50 be folded in cathodic reaction zone 21 second side and an adjacent individual fuel electricity
So that the cathode plate 20 of anode plate 10 and an adjacent individual fuel cells between the second side in the anode edge area 12 in pond
It is spaced apart.Coolant is flowed by cold side component 50, to take away the heat in anode reaction area 11 Yu cathodic reaction zone 21.
In the related technology, the sealing of individual fuel cells is the surrounding in membrane electrode 33 plus by compressible insulating materials
Manufactured insulation frame, but this sealing means, when bearing the high pressure of battery work, insulate frame itself and 33 material of membrane electrode
The difference of material attribute easily leads to the deformation and displacement of insulation frame, and then influences battery performance.In addition to this, insulate the production sheet of frame
Body also increases the complex procedures degree of fuel cell module.
In the related technology, due to anode plate and cathode plate reaction zone to can be arranged between marginal zone from coolant pass in and out
Mouth arrives the diversion function area of reaction zone, so that the width of seal groove to reaction zone is larger, cannot achieve distance and wants less than 1.5cm
It asks.That is, there are a kind of technology barrier, which causes relevant design to be bound to using exhausted in conventional design
Edge frame seals.In the application, due to being provided with screen, and screen runner 61 is set on screen 60, in this way without in anode plate
Corresponding coolant diversion function area is set with cathode plate, in this way, can directly cancel the design of insulation frame, by seal groove
The method that interior setting seal directly pushes down membrane electrode 33 realizes positioning, sealing and insulation, enormously simplifies process.
As shown in Fig. 1 and Figure 21, Figure 22, anode edge area 12 includes: two along the first side that first direction is oppositely arranged
Edge area, two second edge areas being oppositely arranged in a second direction, the both ends in a first edge area respectively with two the second sides
One end that edge area is oppositely arranged is connected, and the both ends in another first edge area are oppositely arranged with Liang Ge second edge area another respectively
One end is connected.One in Liang Ge first edge area is equipped with fuel gas inlet 71, another in Liang Ge first edge area is equipped with
Fuel gas outlet 72.
Cathode edge area 22 includes: two along the first edge area that first direction is oppositely arranged, two phases in a second direction
To the second edge area of setting, one end phase that the both ends in a first edge area are oppositely arranged with Liang Ge second edge area respectively
Even, the other end that the both ends in another first edge area are oppositely arranged with Liang Ge second edge area respectively is connected.
One in Liang Ge first edge area is equipped with coolant outlet 76 and fuel gas inlet 71, in Liang Ge first edge area
Another be equipped with coolant inlet 75 and fuel gas outlet 72;One in Liang Ge second edge area is equipped with oxidant inlet
Another in 73, Liang Ge second edge areas is equipped with oxidant outlet 74.Fuel gas inlet 71 is positioned below, fuel gas outlet 72
It is located at top, hydrogen from top to bottom, is conducive to the wetting of film.
71 face of fuel gas inlet on fuel gas inlet 71 and cathode plate 20 on anode plate 10 is arranged, on anode plate 10
Fuel gas outlet 72 with cathode plate 20 on fuel gas export 72 faces setting;Coolant inlet 75 and yin on anode plate 10
75 face of coolant inlet on pole plate 20 is arranged, and the coolant outlet 76 on anode plate 10 goes out with the coolant on cathode plate 20
Mouth 76 faces setting;73 face of oxidant inlet on oxidant inlet 73 and cathode plate 20 on anode plate 10 is arranged, anode
74 face of oxidant outlet on oxidant outlet 74 and cathode plate 20 on plate 10 is arranged.
Shown in as shown in Figure 1, Figure 21, Figure 22, coolant outlet 76 and fuel gas inlet 71 are spaced apart distribution in a second direction, and
Fuel gas inlet 71 is located at close to one end of oxidant outlet 74, and coolant outlet 76 is located at one close to oxidant inlet 73
End, coolant inlet 75 and fuel gas outlet 72 are spaced apart distribution in a second direction, and fuel gas outlet 72 is located at close to oxidation
One end of agent import 73, coolant inlet 75 are located at close to one end of oxidant outlet 74.In other words, fuel gas inlet 71 and combustion
The outlet of material gas 72 is arranged in a staggered manner in second direction,, can be with convenient for the abundant reaction of fuel gas in this way, the stroke of fuel gas is longer
Improve the reactivity of fuel gas.
The design method of above-mentioned manifold ports, it can be ensured that 73 fuel gas inlet 71 of oxidant inlet is separate, make fuel gas into
Mouth 71 to guarantee that 71 humidity of fuel gas inlet is relatively high, and makes fuel cell coolant flow path close to oxidant outlet 74
From bottom to top, full irrigation form is formed.
Coolant outlet 76 and coolant inlet 75 be it is multiple, multiple coolant outlets 76 in a second direction be spaced apart point
Cloth, multiple coolant inlets 75 are spaced apart distribution in a second direction, oxidant outlet 74 and oxidant inlet 73 be it is multiple, it is more
A oxidant outlet 74 is spaced apart distribution along first direction, and multiple oxidant inlets 73 are spaced apart distribution along first direction.
It is understood that passing through the set-up mode of above-mentioned port, in conjunction with the cloth of anode flow channel 111 and cathode flow channels 211
Form is set, so that the flow direction square crossing of oxidant and fuel gas, the further hydro-thermal distribution of balancing fuel cell, and
The stroke of fuel gas is longer, and convenient for the abundant reaction of fuel gas, the reactivity of fuel gas can be improved.
In the related technology, the sealing of individual fuel cells is the surrounding in membrane electrode 33 plus by compressible insulating materials
Manufactured insulation frame, but this sealing means, when bearing the high pressure of battery work, insulate frame itself and 33 material of membrane electrode
The difference of material attribute easily leads to the deformation and displacement of insulation frame, and then influences battery performance.In addition to this, insulate the production sheet of frame
Body also increases the complex procedures degree of fuel cell module.
In the related technology, due to anode plate and cathode plate reaction zone to can be arranged between marginal zone from oxidant pass in and out
Mouth, fuel gas inlet and outlet, coolant inlet and outlet are to the guiding region of reaction zone, and three guiding region integrated distributions are in the same area
Seal line and reaction zone between so that the width of seal groove to reaction zone is larger, cannot achieve distance and wanted less than 1.5cm
It asks.That is, there are a kind of technology barrier, which causes relevant design to be bound to using exhausted in conventional design
Edge frame seals.In the application, due to having redesigned the position of each inlet and outlet, the water conservancy diversion of fuel gas and oxidant is divided into
Positioned at the adjacent two sides of partition, moreover, most of diversion function area is between seal line and entrance, only small part is located at
Between seal line and reaction zone, in this manner it is possible to directly cancel the design of insulation frame, it is straight by the way that seal is arranged in seal groove
It connects the method for pushing down membrane electrode 33 and realizes positioning, sealing and insulation, enormously simplify process.
In some embodiments, as shown in Figure 2 and Figure 9, individual fuel cells further include: gas circuit component 40, cathode reaction
The first side in area 21 is arranged relative to the second side recess of first side towards the cathode plate 20 in cathode edge area 22 to be formed
Deep gouge, for the setting of gas circuit component 40 in deep gouge, gas circuit component 40 includes multiple through-holes for passing through for gas and water.
Cathode flow channels 211 include the groove set on 21 first side of cathodic reaction zone, and it is anti-that gas circuit component 40 is supported in cathode
Answer the region for not setting cathode flow channels 211 of 21 first side of area.Gas circuit component 40 is not set with 21 first side of cathodic reaction zone
The region of cathode flow channels 211 can be bonded setting.
The first side of cathodic reaction zone 21 is equipped with cathode flow channels 211, and cathode flow channels 211 include being set to cathodic reaction zone 21
Groove.Gas circuit component 40 can satisfy gas and water by demand, can be with by the combination of gas circuit component 40 and cathode flow channels 211
The gas reaction space for greatly enhancing cathode side makes the gas free air space of cathode side be greater than anode-side, in this way, solving hydrogen
Reaction compartment different problems needed for oxygen side, and the basic phase that cathode flow channels 211 and the structure of anode flow channel 111 can design
Together, to guarantee that the volume of fuel cell separator part can maintain lesser range, and the life of anode plate 10 and cathode plate 20
Production. art is simpler.
As shown in Figure 9 and Figure 10, the high settings such as first side of the bottom wall of cathode seal groove 221 and cathodic reaction zone 21.
It is equivalent to the datum plane for reducing a cathode plate 20, in this way convenient for the processing of cathode plate 20.In this embodiment, cathode plate
20 include three datum planes: gas flow baseplane, gas flow top plane, fringe region plane.The cathode of this structure
20 processing technology of plate is simple.
The junction of the first side of the first side and cathode edge area 22 of cathodic reaction zone 21 is formed as stairstepping, gas
Road component 40 is fixed by the cascaded surface 223 between the first side of cathodic reaction zone 21 and the first side in cathode edge area 22
Position.It is understood that when processing gas circuit component 40 and cathode plate 20, by the yin of the shape of gas circuit component 40 and cathode plate 20
Pole reaction zone 21 is identical, and controls the machining accuracy of deep gouge, and such gas circuit component 40 can be embedded just below deep gouge, pass through cathode plate
20 deep gouge is directly realized by the positioning of gas circuit component 40.In order to simplify processing, deep gouge and gas circuit component 40 can be processed into
Cuboid can effectively realize determining for gas circuit component 40 by the cooperation of the peripheral wall of the peripheral wall and deep gouge of gas circuit component 40
Position.
As shown in Figure 1, the fuel cell pile includes: multiple as above the invention also discloses a kind of fuel cell pile
The individual fuel cells of any embodiment are stated, multiple individual fuel cells are stacked, the cathode plate 20 of individual fuel cells
Second side and the second side of the anode plate 10 of an adjacent individual fuel cells be oppositely arranged.
Fuel cell pile according to an embodiment of the present invention directly pushes down membrane electrode by the way that seal is arranged in seal groove
33 method realizes positioning, sealing and insulation, enormously simplifies the assembly process of fuel cell pile.
As shown in Figure 2 and Figure 9, in some embodiments, fuel cell pile can also include: cold side component 50 and grid
Plate 60.
Cold side component 50 be folded in the cathode plate 20 of an individual fuel cells second side and an adjacent list
So that anode plate 10 is spaced apart with cathode plate 20 between the second side of the anode plate 10 of fluid fuel battery, cold side component 50 is set
There are the coolant flow passages for coolant flowing.
Cold side component 50 is oppositely arranged with anode reaction area 11 and cathodic reaction zone 21, and screen 60 is around cold side component
50 settings, screen 60 seal cold side component 50, prevent coolant from revealing.Screen 60 is folded in the yin of an individual fuel cells
Between the second side in the anode edge area 12 of the second side of pole marginal zone 22 and an adjacent individual fuel cells, screen
60 are equipped with the screen runner 61 being connected to coolant flow passages.
Two sides of screen 60 compress the second side in anode edge area 12 and the second side in cathode edge area 22 respectively
Face, two sides of screen 60 connect with the second side in anode edge area 12 and the sealing of the second side in cathode edge area 22 respectively
It connects, for example screen 60 is tightly connected by being bonded or welded with anode edge area 12 and cathode edge area 22.
The a part of screen runner 61 as gas and liquid flow path, screen runner 61 can be to be added on screen 60 by machine
Or the groove that the modes such as punching press generate, anode edge area 12, screen 60, cathode edge area 22, which are formed, fits closely face, can stop
Gas passes through, and by getting screen runner 61 in the opposite position of screen 60, coolant can be guided to pass in and out.
Screen 60 is with for metal plate, screen runner 61 is by machining or is stamped and formed out.Cold side component 50 is undulation degree
Material or metal material or rubber material are made.
It is understood that anode reaction area 11 and 21 face of cathodic reaction zone are arranged, electrochemical reaction is occurred mainly in
Between anode reaction area 11 and cathodic reaction zone 21, such anode reaction area 11 and the heat at cathodic reaction zone 21 are more, lead to
Setting cold side component 50 and screen 60 are crossed, anode plate 10 and cathode plate 20 can be separated, second side of such anode plate 10
Face does not have to be bonded with the second side of cathode plate 20, the second side in anode reaction area 11 and the second side of cathodic reaction zone 21
Between cold side component 50 is set in the cavity that is formed, can radiate for anode reaction area 11 and cathodic reaction zone 21.
Embodiment seven
Individual fuel cells according to an embodiment of the present invention are described below with reference to Fig. 1-Fig. 2 and Figure 13-Figure 14.
As shown in Fig. 1-Fig. 2 and Figure 13-Figure 14, individual fuel cells according to an embodiment of the invention include: anode
Plate 10, cathode plate 20, membrane electrode assembly 30.
Wherein, anode plate 10 includes anode reaction area 11 and anode edge area 12, and anode edge area 12 is around anode reaction
Area 11 is arranged, and cathode plate 20 includes cathodic reaction zone 21 and cathode edge area 22, and cathode edge area 22 is around cathodic reaction zone 21
Setting.
Membrane electrode assembly 30 includes anode gas circuit diffusion layer 31, membrane electrode 33, the cathode gas circuit diffusion layer 32 being stacked,
Membrane electrode assembly 30 is folded between the first side of anode plate 10 and the first side of cathode plate 20, and anode gas circuit diffusion layer
31 with 11 face of anode reaction area, cathode gas circuit diffusion layer 32 and 21 face of cathodic reaction zone, 31 sandwiched of anode gas circuit diffusion layer
Between the first side and membrane electrode 33 in anode reaction area 11, cathode gas circuit diffusion layer 32 is folded in the of cathodic reaction zone 21
Between one side and membrane electrode 33.
It should be noted that the first side of anode plate 10, the first side in anode reaction area 11, anode edge area 12
First side is respectively positioned on the same side of anode plate 10, the second side of anode plate 10, the second side in anode reaction area 11, anode
The second side of marginal zone 12 is respectively positioned on the same side of anode plate 10;The first side of cathode plate 20, cathodic reaction zone 21
One side, cathode edge area 22 first side be respectively positioned on the same side of cathode plate 20, the second side of cathode plate 20, cathode are anti-
The second side of the second side, cathode edge area 22 of answering area 21 is respectively positioned on the same side of cathode plate 20;Cathode plate 20 and anode
The side of plate 10 being oppositely arranged with membrane electrode assembly 30 is first side, first side and second side back to setting.
Following form is taken in the sealing of individual fuel cells: the first side in anode edge area 12 is equipped with anode seal boss
125, the first side in cathode edge area 22 is equipped with cathode seal boss 225, and membrane electrode 33 stretches out 31 He of anode gas circuit diffusion layer
At least partly outer of cathode gas circuit diffusion layer 32 is provided with insulation frame 34, and insulation frame 34 is folded in anode seal boss 125 and yin
Between pole seal boss 225.
Insulating frame 34 can be in the form of preforming be integrated with membrane electrode assembly 30.Insulation frame 34 is that having for insulation is elastic
Materials for support, and have certain degree of hardness.Pass through insulation frame 34 and anode seal boss 125 and cathode seal boss when assembly
The positioning of membrane electrode assembly 30 is realized in 225 cooperation.When assembly, fastening force is applied to stacking direction, insulation 34 formation of frame is squeezed
The sealing for individual fuel cells is completed in compressive strain.
In this way, being just not necessarily to that seal groove and sealing element 222 in addition is arranged when sealing individual fuel cells, it is possible to reduce monomer
The component number of fuel cell.
Individual fuel cells according to an embodiment of the present invention, by being used for sealing in anode plate 10 and the setting of cathode plate 20
Seal boss can be realized the positioning, sealing and insulation of membrane electrode assembly 30, enormously simplify assembly process.
In some embodiments, the end face of anode seal boss 125 and cathode seal boss 225 is planar shaped, plane
The seal boss end face of shape and the matching area of insulation frame 34 are big, and sealing effect is good, and easy to process.Anode seal boss 125
It is arranged around anode reaction area 11, cathode seal boss 225 is arranged around cathodic reaction zone 21, anode seal boss 125 and yin
Pole seal boss 225 all has rectangular cross section.
Anode seal boss 125 along the stacking direction of individual fuel cells axis and cathode seal boss 225 along monomer
The distance of the axis of the stacking direction of fuel cell is f, is met: f≤10 μm.That is, anode seal boss 125 and cathode
The machining accuracy of seal boss 225 needs to meet certain requirement, such anode seal boss 125 and cathode seal boss 225
Face it can be arranged substantially, in actual operation, anode seal boss 125 and cathode seal boss 225 are being parallel to stacking side
To dislocation should be the stability that can guarantee sealing and positioning between 2 μm to 10 μm, and difficulty of processing is little.
As shown in Figure 1, the fuel cell pile includes: multiple as above the invention also discloses a kind of fuel cell pile
The individual fuel cells of any embodiment are stated, multiple individual fuel cells are stacked, the cathode plate 20 of individual fuel cells
Second side and the second side of the anode plate 10 of an adjacent individual fuel cells be oppositely arranged.
Fuel cell pile according to an embodiment of the present invention, by being used for sealing in anode plate 10 and the setting of cathode plate 20
Seal boss can be realized the positioning, sealing and insulation of membrane electrode assembly 30, enormously simplify the assembler of fuel cell pile
Sequence.
As shown in Fig. 2 and Figure 13, fuel cell pile can also include: cold side component 50 and screen 60.
Cold side component 50 be folded in the cathode plate 20 of an individual fuel cells second side and an adjacent list
So that anode plate 10 is spaced apart with cathode plate 20 between the second side of the anode plate 10 of fluid fuel battery, cold side component 50 is set
There are the coolant flow passages for coolant flowing.
Cold side component 50 is oppositely arranged with anode reaction area 11 and cathodic reaction zone 21, and screen 60 is around cold side component
50 settings, screen 60 seal cold side component 50, prevent coolant from revealing.Screen 60 is folded in the yin of an individual fuel cells
Between the second side in the anode edge area 12 of the second side of pole marginal zone 22 and an adjacent individual fuel cells, screen
60 are equipped with the screen runner 61 being connected to coolant flow passages.
Two sides of screen 60 compress the second side in anode edge area 12 and the second side in cathode edge area 22 respectively
Face, two sides of screen 60 connect with the second side in anode edge area 12 and the sealing of the second side in cathode edge area 22 respectively
It connects, for example screen 60 is tightly connected by being bonded or welded with anode edge area 12 and cathode edge area 22.
The a part of screen runner 61 as gas and liquid flow path, screen runner 61 can be to be added on screen 60 by machine
Or the groove that the modes such as punching press generate, anode edge area 12, screen 60, cathode edge area 22, which are formed, fits closely face, can stop
Gas passes through, and by getting screen runner 61 in the opposite position of screen 60, coolant can be guided to pass in and out.
Screen 60 is with for metal plate, screen runner 61 is by machining or is stamped and formed out.Cold side component 50 is undulation degree
Material or metal material or rubber material are made.
It is understood that anode reaction area 11 and 21 face of cathodic reaction zone are arranged, electrochemical reaction is occurred mainly in
Between anode reaction area 11 and cathodic reaction zone 21, such anode reaction area 11 and the heat at cathodic reaction zone 21 are more, lead to
Setting cold side component 50 and screen 60 are crossed, anode plate 10 and cathode plate 20 can be separated, second side of such anode plate 10
Face does not have to be bonded with the second side of cathode plate 20, the second side in anode reaction area 11 and the second side of cathodic reaction zone 21
Between cold side component 50 is set in the cavity that is formed, can radiate for anode reaction area 11 and cathodic reaction zone 21.
Embodiment eight
Individual fuel cells according to an embodiment of the present invention are described below with reference to Fig. 1-Fig. 2 and Figure 18-Figure 20.
As shown in Fig. 1-Fig. 2 and Figure 18-Figure 20, individual fuel cells according to an embodiment of the invention include: anode
Plate 10, cathode plate 20, membrane electrode assembly 30.
Wherein, anode plate 10 includes anode reaction area 11 and anode edge area 12, and anode edge area 12 is around anode reaction
Area 11 is arranged, and cathode plate 20 includes cathodic reaction zone 21 and cathode edge area 22, and cathode edge area 22 is around cathodic reaction zone 21
Setting.
Membrane electrode assembly 30, membrane electrode assembly 30 are folded in the first side of anode plate 10 and the first side of cathode plate 20
Between.It should be noted that the first side of anode plate 10, the first side in anode reaction area 11, anode edge area 12
One side is respectively positioned on the same side of anode plate 10, the second side of anode plate 10, the second side in anode reaction area 11, anode side
The second side in edge area 12 is respectively positioned on the same side of anode plate 10;The first side of cathode plate 20, cathodic reaction zone 21 first
Side, cathode edge area 22 first side be respectively positioned on the same side of cathode plate 20, the second side of cathode plate 20, cathode reaction
The second side in area 21, the second side in cathode edge area 22 are respectively positioned on the same side of cathode plate 20;Cathode plate 20 and anode plate
10 side being oppositely arranged with membrane electrode assembly 30 is first side, first side and second side back to setting.
As shown in Figure 18-Figure 20, anode reaction area 11 at least partly with cathodic reaction zone 21 at least partly towards mutual
Deviate from direction recess, anode edge area 12 at least partly with cathode edge area 22 at least partly towards direction close to each other
Protrusion.
In this way, the whole shape that central concave edge protrusion is presented of anode plate 10, the whole presentation center of cathode plate 20
The shape of concave edges protrusion after the fastening of cathode plate 20, can be formed sufficiently large by anode plate 10 in the reaction zone at center
Space for accommodating the main part of membrane electrode assembly 30, accordingly, the space of reaction zone is to membrane electrode assembly 30 and attached
The limitation of components is smaller, can be designed that the membrane electrode assembly 30 and attached components of more conducively electrochemical reaction, and on side
Anode plate 10 at edge is small at a distance from cathode plate 20, convenient for sealing, can save sealing material.
Individual fuel cells according to an embodiment of the present invention, by anode plate 10 and cathode plate that above structure form is arranged
20, sufficiently large reaction zone can be limited, keeps the reaction efficiency of individual fuel cells higher, and sealing material can be saved.
In some embodiments, as shown in figure 18, following form: membrane electrode assembly 30 is taken in the sealing of individual fuel cells
Including the anode gas circuit diffusion layer 31, membrane electrode 33, cathode gas circuit diffusion layer 32 being stacked, and anode gas circuit diffusion layer 31 with
11 face of anode reaction area, cathode gas circuit diffusion layer 32 and 21 face of cathodic reaction zone, membrane electrode 33 stretch out the diffusion of anode gas circuit
Layer 31 and at least partly outer of cathode gas circuit diffusion layer 32 are provided with insulation frame 34, and insulation frame 34 is folded in 12 He of anode edge area
Between the part mutually protruded in cathode edge area 22.
Insulating frame 34 can be in the form of preforming be integrated with membrane electrode assembly 30.Insulation frame 34 is that having for insulation is elastic
Materials for support, and have certain degree of hardness.Pass through the phase of insulate frame 34 and anode edge area 12 and cathode edge area 22 when assembly
The positioning of membrane electrode assembly 30 is realized in the cooperation for the part mutually protruded.When assembly, fastening force is applied to insulation frame to stacking direction
The sealing for individual fuel cells is completed in 34 extrusion deformations formed.
In this way, being just not necessarily to that seal groove and sealing element 222 in addition is arranged when sealing individual fuel cells, it is possible to reduce monomer
The component number of fuel cell.By the way that the part mutually protruded directly is arranged i.e. in anode edge area 12 and cathode edge area 22
Positioning, sealing and the insulation that membrane electrode assembly 30 can be achieved, enormously simplify assembly process.
Axis and cathode edge area 22 of the part of the protrusion in anode edge area 12 along the stacking direction of individual fuel cells
Protrusion part along individual fuel cells stacking direction axis distance be f, meet: f≤10 μm.As Figure 18-20 institute
Show, anode edge area 12 has the anode clamping part 126 protruded towards membrane electrode assembly 30, and cathode edge area 22 has towards membrane electrode
The cathode clamping part 126 that component 30 protrudes, anode clamping part 126 are pressed from both sides along the axis and cathode of the stacking direction of individual fuel cells
It is f that portion 126, which is held, along the distance of the axis of the stacking direction of individual fuel cells, is met: f≤10 μm.
That is, the machining accuracy of anode clamping part 126 and cathode clamping part 126 needs to meet certain requirement, this
Sample anode clamping part 126 and cathode clamping part 126 face can be arranged, in actual operation, anode clamping part 126 and yin substantially
Pole clamping part 126 should can guarantee the stability of sealing and positioning in the dislocation for being parallel to stacking direction between 2 μm to 10 μm,
And difficulty of processing is little.
As shown in figure 19, the first side in anode reaction area 11 is equipped with anode flow channel 111, and anode flow channel 111 is towards away from film
The direction of electrode assembly 30 is recessed, and anode edge area 12 has the anode clamping part 126 protruded towards membrane electrode assembly 30.Anode side
Do not set that the region of anode flow channel 111 is concordant to be arranged in the main part in edge area 12 and the first side in anode reaction area 11.
Anode plate 10 can be using the two-sided concave-convex structure by that can have formation of the malleable material by punching press.Such as
Shown in Figure 19, two-sided staggeredly symmetrical concaveconvex structure is presented in anode plate 10.Anode plate 10 includes the different plane of three height: sun
Pole runner bottom surface A1, anode flow channel top surface A2 and anode clamping part crowning A3.The entirety in anode edge area 12 flushes in anode
Runner top surface A2, and anode clamping part crowning A3 is higher than anode flow channel top surface A2.Being equivalent in this way reduces an anode plate
10 datum plane, convenient for the processing of anode plate 10.
As shown in figure 20, cathodic reaction zone 21 is equipped with cathode flow channels 211, and cathode flow channels 211 are towards away from membrane electrode assembly 30
Direction recess, cathode edge area 22 relative to cathodic reaction zone 21 towards close to membrane electrode assembly 30 direction protrude, in yin
Pole reaction zone 21 forms deep gouge.Cathode edge area 22 has the cathode clamping part 126 protruded towards membrane electrode assembly 30.
Cathode plate 20 can be using the two-sided concave-convex structure by that can have formation of the malleable material by punching press.Such as
Shown in Figure 19, two-sided staggeredly symmetrical concaveconvex structure is presented in cathode plate 20.Cathode plate 20 includes four datum planes: cathode flow channels
Bottom surface C1, cathode flow channels top surface C2, cathode clamping part crowning C3, cathode edge area plane C4.
As shown in figure 15, in some embodiments, individual fuel cells can also include: gas circuit component 40, gas circuit component
40 are arranged in deep gouge.The junction of the first side of the first side and cathode edge area 22 of cathodic reaction zone 21 is formed as ladder
Shape, gas circuit component 40 pass through the cascaded surface between the first side of cathodic reaction zone 21 and the first side in cathode edge area 22
223 positioning.
Gas circuit component 40 can be plate, and gas circuit component 40 includes multiple through-holes, and through-hole for gas and water for passing through.Gas
Road component 40, which can satisfy gas and water, can greatly be increased by demand by the combination of gas circuit component 40 and cathode flow channels 211
The gas reaction space of strong cathode side makes the gas free air space of cathode side be greater than anode-side, in this way, solving needed for hydrogen-oxygen side
Reaction compartment different problems, and cathode flow channels 211 and the structure of anode flow channel 111 can design it is essentially identical, thus
Guarantee that the volume of fuel cell separator part can maintain lesser range, and the production technology of anode plate 10 and cathode plate 20 is more
Simply.
It is understood that when processing gas circuit component 40 and cathode plate 20, by the shape and cathode plate of gas circuit component 40
20 cathodic reaction zone 21 is identical, and controls the machining accuracy of deep gouge, and such gas circuit component 40 can be embedded just below deep gouge, pass through
The deep gouge of cathode plate 20 is directly realized by the positioning of gas circuit component 40.It, can be equal by deep gouge and gas circuit component 40 in order to simplify processing
It is processed into cuboid, gas circuit component 40 can be effectively realized by the cooperation of the peripheral wall of the peripheral wall and deep gouge of gas circuit component 40
Positioning.
Membrane electrode assembly 30 can be formed as one with gas circuit component 40.Gas circuit is positioned by the deep gouge of cathode plate 20 in this way
Component 40 can position membrane electrode assembly 30 simultaneously, thus simplify the assembly technology of individual fuel cells.
As shown in Figure 1, the fuel cell pile includes: multiple as above the invention also discloses a kind of fuel cell pile
The individual fuel cells of any embodiment are stated, multiple individual fuel cells are stacked, the cathode plate 20 of individual fuel cells
Second side and the second side of the anode plate 10 of an adjacent individual fuel cells be oppositely arranged.
Fuel cell pile according to an embodiment of the present invention directly pushes down membrane electrode by the way that seal is arranged in seal groove
33 method realizes positioning, sealing and insulation, enormously simplifies the assembly process of fuel cell pile.
As shown in Fig. 2 and Figure 18, in some embodiments, fuel cell pile can also include: 50 He of cold side component
Screen 60.
Cold side component 50 be folded in the cathode plate 20 of an individual fuel cells second side and an adjacent list
So that anode plate 10 is spaced apart with cathode plate 20 between the second side of the anode plate 10 of fluid fuel battery, cold side component 50 is set
There are the coolant flow passages for coolant flowing.
Cold side component 50 is oppositely arranged with anode reaction area 11 and cathodic reaction zone 21, and screen 60 is around cold side component
50 settings, screen 60 seal cold side component 50, prevent coolant from revealing.Screen 60 is folded in the yin of an individual fuel cells
Between the second side in the anode edge area 12 of the second side of pole marginal zone 22 and an adjacent individual fuel cells, screen
60 are equipped with the screen runner 61 being connected to coolant flow passages.
Two sides of screen 60 compress the second side in anode edge area 12 and the second side in cathode edge area 22 respectively
Face, two sides of screen 60 connect with the second side in anode edge area 12 and the sealing of the second side in cathode edge area 22 respectively
It connects, for example screen 60 is tightly connected by being bonded or welded with anode edge area 12 and cathode edge area 22.
The a part of screen runner 61 as gas and liquid flow path, screen runner 61 can be to be added on screen 60 by machine
Or the groove that the modes such as punching press generate, anode edge area 12, screen 60, cathode edge area 22, which are formed, fits closely face, can stop
Gas passes through, and by getting screen runner 61 in the opposite position of screen 60, coolant can be guided to pass in and out.
Screen 60 is with for metal plate, screen runner 61 is by machining or is stamped and formed out.Cold side component 50 is undulation degree
Material or metal material or rubber material are made.
It is understood that anode reaction area 11 and 21 face of cathodic reaction zone are arranged, electrochemical reaction is occurred mainly in
Between anode reaction area 11 and cathodic reaction zone 21, such anode reaction area 11 and the heat at cathodic reaction zone 21 are more, lead to
Setting cold side component 50 and screen 60 are crossed, anode plate 10 and cathode plate 20 can be separated, second side of such anode plate 10
Face does not have to be bonded with the second side of cathode plate 20, the second side in anode reaction area 11 and the second side of cathodic reaction zone 21
Between cold side component 50 is set in the cavity that is formed, can radiate for anode reaction area 11 and cathodic reaction zone 21.
Each technical characteristic in above-described embodiment one to eight can be bound to each other to form more in the absence of conflict
The sealing structure of individual fuel cells in a embodiment, such as embodiment one can be with the knot of reference implementation example six, seven, eight
Fuel cell separator plate in structure or embodiment one can also include screen 60, cold side component 50 etc. in embodiment two, or
As soon as the fuel cell separator plate in person's embodiment can also include the gas circuit component 40 etc. in embodiment three, no longer go to live in the household of one's in-laws on getting married one by one herein
It states.
Below in conjunction with the feature of above-mentioned multiple embodiments, one embodiment is described in detail as example.
Embodiment nine
As shown in Fig. 1-Figure 10 and Figure 21-Figure 22, fuel cell separator part according to an embodiment of the invention includes: sun
Pole plate 10, cathode plate 20, gas circuit component 40, cold side component 50, screen 60.
Wherein, anode plate 10 includes anode reaction area 11 and the anode edge area 12 around anode reaction area 11, anode stream
Road 111 is set to the first side in anode reaction area 11, for example anode reaction area 11 can be rectangle, and anode edge area 12 can be
Rectangle frame;Cathode plate 20 includes cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and cathode flow channels 211 are set
First side in cathodic reaction zone 21.
Anode flow channel 111 at least partly extends in a first direction, and cathode flow channels 211 are at least partly prolonged in a second direction
It stretches, first direction is vertical with second direction.
Screen 60 is folded between the second side in anode edge area 12 and the second side in cathode edge area 22, and screen
60 are all connected with anode edge area 12 and cathode edge area 22.Cold side component 50 is folded in the second side in anode reaction area 11
So that anode plate 10 is spaced apart with cathode plate 20 between the second side of cathodic reaction zone 21, two sides of cold side component 50
Face compresses the second side in anode reaction area 11 and the second side of cathodic reaction zone 21 respectively.Cold side component 50 is equipped with cooling supply
But the coolant flow passages of agent flowing, coolant is flowed by cold side component 50, so that it is anti-with cathode to take away anode reaction area 11
Answer the heat in area 21.
Screen 60 can surround cold side component 50, and screen 60 seals cold side component 50, prevents coolant from revealing, anode
Marginal zone 12 and cathode edge area 22 are equipped with the coolant inlet 75 separated by anode reaction area 11 and cathodic reaction zone 21 and cold
But agent outlet 76, as shown in Figure 4-Figure 7, screen 60 are equipped with screen runner 61, and coolant inlet 75 passes through corresponding screen runner
61 are connected to coolant flow passages, and coolant outlet 76 is connected to by corresponding screen runner 61 with coolant flow passages.
The a part of screen runner 61 as gas and liquid flow path, screen runner 61 can be to be added on screen 60 by machine
Or the groove that the modes such as punching press generate, anode edge area 12, screen 60, cathode edge area 22, which are formed, fits closely face, can stop
Gas passes through, and by getting screen runner 61 in the opposite position of screen 60, coolant can be guided to pass in and out.
The first side of cathodic reaction zone 21 relative to cathode edge area 22 first side towards cathode plate 20 second side
Face recess setting is to form deep gouge, and the setting of gas circuit component 40 is in deep gouge, and gas circuit component 40 is positioned by the peripheral wall of deep gouge.
Gas circuit component 40 includes multiple through-holes, and for through-hole for passing through for gas and water, it is logical that gas circuit component 40 can satisfy gas and water
Demand is crossed, by the combination of gas circuit component 40 and cathode flow channels 211, can greatly enhance the gas reaction space of cathode side,
The gas free air space of cathode side is set to be greater than anode-side, in this way, reaction compartment different problems needed for solving hydrogen-oxygen side, and
Cathode flow channels 211 and the structure of anode flow channel 111 can design it is essentially identical, to guarantee the volume of fuel cell separator part
Lesser range can be maintained, and the production technology of anode plate 10 and cathode plate 20 is simpler.
Anode edge area 12 and cathode edge area 22 are equipped with escape groove 77, and the escape groove 77 in anode edge area 12 and yin
77 face of escape groove of pole marginal zone 22 is arranged.Escape groove 77 is for being pressed fuel cell separator part, and escape groove 77 is along fuel electricity
The thickness direction of pond separator runs through marginal zone, and distance of the escape groove 77 close to the edge of reaction zone to reaction zone is c, meets: c
≥20mm.Fuel cell pile is stacked structure, and fuel cell separator part is also stacked structure, by fuel cell separator part heap
It when being stacked as fuel cell pile, needs to compress fuel cell separator part using fastener, so that each fuel cell separator part
It can fit closely, fastener is through escape groove 77 to run through fuel cell pile on the stacking direction of fuel cell pile.
Fuel cell separator part according to an embodiment of the present invention, using vertical run, and by using letter easy to process
Single channel component optimizes the flowing for generating water and coolant, while also avoiding highly complex processing.Simultaneously by combustion
Material battery separators entirety bumps optimize processing, are able to needed for meeting hydrogen-oxygen side while not increasing width of flow path not
Same reaction compartment.It is formed by difference in height using bumps simultaneously, realizes the precise positioning of membrane electrode assembly 30.Dress can be reduced
With pressure assembling force needed for pile, and enable inside battery pressure more uniform.
As shown in Fig. 1-Figure 10 and Figure 21-Figure 22, the invention also discloses a kind of individual fuel cells.
Individual fuel cells according to an embodiment of the invention include: anode plate 10, cathode plate 20, gas circuit component 40,
Cold side component 50, screen 60 and membrane electrode assembly 30.
Wherein, anode plate 10 includes anode reaction area 11 and the anode edge area 12 around anode reaction area 11, anode stream
Road 111 is set to the first side in anode reaction area 11, for example anode reaction area 11 can be rectangle, and anode edge area 12 can be
Rectangle frame;Cathode plate 20 includes cathodic reaction zone 21 and the cathode edge area 22 around cathodic reaction zone 21, and cathode flow channels 211 are set
First side in cathodic reaction zone 21.
Anode flow channel 111 at least partly extends in a first direction, and cathode flow channels 211 are at least partly prolonged in a second direction
It stretches, first direction is vertical with second direction.
Membrane electrode assembly 30 includes anode gas circuit diffusion layer 31, membrane electrode 33, the cathode gas circuit diffusion layer 32 being stacked,
Membrane electrode assembly 30 is folded between the first side of anode plate 10 and the first side of cathode plate 20, and anode gas circuit diffusion layer
31 with 11 face of anode reaction area, cathode gas circuit diffusion layer 32 and 21 face of cathodic reaction zone, 31 sandwiched of anode gas circuit diffusion layer
Between the first side and membrane electrode 33 in anode reaction area 11, cathode gas circuit diffusion layer 32 is folded in gas circuit component 40 and film electricity
Between pole 33.
The first side of cathodic reaction zone 21 relative to cathode edge area 22 first side towards cathode plate 20 second side
Face recess setting is to form deep gouge, and the setting of gas circuit component 40 is in deep gouge, and gas circuit component 40 is positioned by the peripheral wall of deep gouge.
Gas circuit component 40 includes multiple through-holes, and for through-hole for passing through for gas and water, it is logical that gas circuit component 40 can satisfy gas and water
Demand is crossed, by the combination of gas circuit component 40 and cathode flow channels 211, can greatly enhance the gas reaction space of cathode side,
The gas free air space of cathode side is set to be greater than anode-side, in this way, reaction compartment different problems needed for solving hydrogen-oxygen side, and
Cathode flow channels 211 and the structure of anode flow channel 111 can design it is essentially identical, to guarantee that the volume of individual fuel cells can
To maintain lesser range, and the production technology of anode plate 10 and cathode plate 20 is simpler.
Membrane electrode assembly 30 is formed as one with gas circuit component 40.Gas circuit component is positioned by the deep gouge of cathode plate 20 in this way
40 can position membrane electrode assembly 30 simultaneously, thus simplify the assembly technology of individual fuel cells.
Screen 60 is folded between the second side in anode edge area 12 and the second side in cathode edge area 22, and screen
60 are all connected with anode edge area 12 and cathode edge area 22.Cold side component 50 is folded in the second side in anode reaction area 11
So that anode plate 10 is spaced apart with cathode plate 20 between the second side of cathodic reaction zone 21, two sides of cold side component 50
Face compresses the second side in anode reaction area 11 and the second side of cathodic reaction zone 21 respectively.Cold side component 50 is equipped with cooling supply
But the coolant flow passages of agent flowing, coolant is flowed by cold side component 50, so that it is anti-with cathode to take away anode reaction area 11
Answer the heat in area 21.
Screen 60 can surround cold side component 50, and screen 60 seals cold side component 50, prevents coolant from revealing, anode
Marginal zone 12 and cathode edge area 22 are equipped with the coolant inlet 75 separated by anode reaction area 11 and cathodic reaction zone 21 and cold
But agent outlet 76, as shown in Figure 4-Figure 7, screen 60 are equipped with screen runner 61, and coolant inlet 75 passes through corresponding screen runner
61 are connected to coolant flow passages, and coolant outlet 76 is connected to by corresponding screen runner 61 with coolant flow passages.
The a part of screen runner 61 as gas and liquid flow path, screen runner 61 can be to be added on screen 60 by machine
Or the groove that the modes such as punching press generate, anode edge area 12, screen 60, cathode edge area 22, which are formed, fits closely face, can stop
Gas passes through, and by getting screen runner 61 in the opposite position of screen 60, coolant can be guided to pass in and out.
Anode edge area 12 and cathode edge area 22 are equipped with escape groove 77, and the escape groove 77 in anode edge area 12 and yin
77 face of escape groove of pole marginal zone 22 is arranged.Escape groove 77 is for being pressed individual fuel cells, and escape groove 77 is along individual fuel
The thickness direction of battery runs through marginal zone, and distance of the escape groove 77 close to the edge of reaction zone to reaction zone is c, meets: c >=
20mm.Fuel cell pile is stacked structure, and individual fuel cells are also stacked structure, and individual fuel cells are being stacked as firing
When expecting battery stack, need to compress individual fuel cells using fastener, so that each individual fuel cells can fit closely,
Fastener is through escape groove 77 to run through fuel cell pile on the stacking direction of fuel cell pile.
Individual fuel cells according to an embodiment of the present invention, using vertical run, and by using easy to process simple
Flow path features optimize the flowing for generating water and coolant, while also avoiding highly complex processing.Simultaneously by monomer
Fuel cell entirety bumps optimize processing, are able to different needed for meeting hydrogen-oxygen side while not increasing width of flow path
Reaction compartment.It is formed by difference in height using bumps simultaneously, realizes the precise positioning of membrane electrode assembly 30.Assembly electricity can be reduced
Pressure assembling force needed for heap, and enable inside battery pressure more uniform.
The structure of cathode plate 20 and anode plate 10 in above-described embodiment one to nine can be described with reference to following embodiments.
In some embodiments, as shown in Fig. 4 and Figure 14, anode plate 10 be include the plate shaped of groove, and anode flow channel
111 include the groove set on 10 first side of anode plate, and cathode plate 20 is include groove plate shaped, and cathode flow channels 211 include
Set on the groove of 20 first side of cathode plate.Anode plate 10, cathode plate 20 first side include groove, anode plate 10, cathode
The second side of plate 20 can be planar shaped, in this way convenient for stacking.Graphite, composite graphite can be used in anode plate 10, cathode plate 20
Or corrosion resistant metal the modes such as adds to be made by machine.
In further embodiments, as shown in Figure 12, Figure 16, Figure 19 and Figure 20, anode plate 10 is in first side and the
The concave-convex plate body of two side faces, cathode plate 20 are the plate body concave-convex in first side and second side.Anode plate 10, cathode plate
20 can be using malleable resistant material such as stainless steel, aluminium alloy, titanium alloy etc. by being stamped and formed out with biconcave
Convex structure.Two-sided staggeredly symmetrical concaveconvex structure is all presented in anode plate 10, cathode plate 20.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (16)
1. a kind of fuel cell separator part characterized by comprising
Anode plate;
Cathode plate, the cathode plate include cathodic reaction zone and the cathode edge area around the cathodic reaction zone, the cathode
The first side of reaction zone is recessed relative to the second side of first side towards the cathode plate in the cathode edge area and is arranged
To form deep gouge, the second side of the cathode plate and the second side of the anode plate are oppositely arranged;
Gas circuit component, the gas circuit component are arranged in the deep gouge.
2. fuel cell separator part according to claim 1, which is characterized in that the gas circuit component passes through the deep gouge
Peripheral wall positioning assembly.
3. fuel cell separator part according to claim 2, which is characterized in that the first side of the cathodic reaction zone with
The junction of the first side in the cathode edge area is formed as stairstepping, and the gas circuit component passes through the cathodic reaction zone
Cascaded surface between first side and the first side in the cathode edge area is vertical with the first side of the cathodic reaction zone,
The peripheral wall that the cascaded surface is looped around the gas circuit component is outer to position the gas circuit component.
4. fuel cell separator part according to claim 1, which is characterized in that the gas circuit component with a thickness of a, it is described
The depth of deep gouge is h, is met: 0.5≤a/h≤1.5.
5. fuel cell separator part according to claim 1, which is characterized in that the gas circuit component is plate, and including
Multiple through-holes, the through-hole for gas and water for passing through.
6. fuel cell separator part according to claim 1, which is characterized in that the gas circuit component was corroded by acid resistance
Complex fiber material or metal material or rubber material are made.
7. fuel cell separator part according to claim 1 to 6, which is characterized in that further include: cold side group
Part, the anode plate include anode reaction area and the anode edge area around the anode reaction area, the cold side component folder
It is located between the second side in the anode reaction area and the second side of the cathodic reaction zone so that the anode plate and yin
Polar plate interval is opened, and the cold side component is equipped with the coolant flow passages flowed for coolant.
8. fuel cell separator part according to claim 7, which is characterized in that further include: screen, the screen are folded in
Between the second side in the anode edge area and the second side in the cathode edge area, the screen and the anode edge
Area and the cathode edge area are tightly connected, the screen around the cold side component, the screen be equipped with it is described cold
But the screen runner of agent runner connection.
9. fuel cell separator part according to claim 1 to 6, which is characterized in that the cathodic reaction zone is
It is plate shaped, the first side in the cathode edge area relative to the cathodic reaction zone first side towards far from the cathode plate
Second side direction protrusion.
10. fuel cell separator part according to claim 1 to 6, which is characterized in that the cathode plate is packet
The plate shaped of groove is included, and the cathode flow channels include the groove set on the cathode plate first side.
11. fuel cell separator part according to claim 1 to 10, which is characterized in that the cathode plate be
The plate body of first side and second side bumps.
12. a kind of fuel cell pile characterized by comprising multiple such as fuel of any of claims 1-11
Battery separators and membrane electrode assembly, multiple fuel cell separator parts are stacked, and the fuel cell separator part
The membrane electrode assembly is folded between anode plate and the gas circuit component of the adjacent one fuel cell separator part.
13. a kind of individual fuel cells characterized by comprising
Anode plate;
Cathode plate, the cathode plate include cathodic reaction zone and the cathode edge area around the cathodic reaction zone, the cathode
The first side of reaction zone is recessed relative to the second side of first side towards the cathode plate in the cathode edge area and is arranged
To form deep gouge;
Membrane electrode assembly and gas circuit component, the membrane electrode assembly and the gas circuit component are folded in the first side of the anode plate
Between face and the first side of the cathode plate, the gas circuit component is arranged in the deep gouge.
14. individual fuel cells according to claim 13, which is characterized in that the membrane electrode assembly includes being stacked
Anode gas circuit diffusion layer, membrane electrode, cathode gas circuit diffusion layer, the cathode gas circuit diffusion layer and the gas circuit component joint,
The sum of thickness of the cathode gas circuit diffusion layer and the gas circuit component is b, and the depth of the deep gouge is h, is met: 1≤b/h.
15. individual fuel cells according to claim 13, which is characterized in that the gas circuit component passes through the deep gouge
Peripheral wall positioning assembly, the membrane electrode assembly are formed as one with the gas circuit component.
16. individual fuel cells according to claim 13, which is characterized in that
The anode plate includes the anode edge area in anode reaction area and the circular anode reaction area, the anode edge area
First side is equipped with anode seal slot;
The first side in the cathode edge area is equipped with cathode seal groove;
The membrane electrode assembly includes the anode gas circuit diffusion layer, membrane electrode, cathode gas circuit diffusion layer being stacked, the film electricity
The anode gas circuit diffusion layer is stretched out in pole and at least partly outer of the cathode gas circuit diffusion layer is provided with insulation frame, the insulation
Frame is folded between the anode seal slot and the sealing element of the cathode seal groove.
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CN105161737A (en) * | 2015-06-30 | 2015-12-16 | 中国东方电气集团有限公司 | Fuel cell device |
CN209183643U (en) * | 2018-12-05 | 2019-07-30 | 国家电投集团氢能科技发展有限公司 | Fuel cell separator part, individual fuel cells and fuel cell pile |
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CN103985886A (en) * | 2013-02-07 | 2014-08-13 | 上海恒劲动力科技有限公司 | Fuel cell netted support bipolar plate and electric pile comprising fuel cell netted support bipolar plate |
CN104795574A (en) * | 2015-04-14 | 2015-07-22 | 中国东方电气集团有限公司 | Metal bipolar plates of fuel cell and fuel cell |
CN105161737A (en) * | 2015-06-30 | 2015-12-16 | 中国东方电气集团有限公司 | Fuel cell device |
CN209183643U (en) * | 2018-12-05 | 2019-07-30 | 国家电投集团氢能科技发展有限公司 | Fuel cell separator part, individual fuel cells and fuel cell pile |
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