CN102790230B - Air cooling type proton exchange membrane fuel battery pile - Google Patents
Air cooling type proton exchange membrane fuel battery pile Download PDFInfo
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- CN102790230B CN102790230B CN201210274651.0A CN201210274651A CN102790230B CN 102790230 B CN102790230 B CN 102790230B CN 201210274651 A CN201210274651 A CN 201210274651A CN 102790230 B CN102790230 B CN 102790230B
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- 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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Abstract
The invention provides an air cooling type proton exchange membrane fuel battery pile. Air on a cathode side of a battery pile is completely separated from hydrogen on an anode side by the structure, so that the gas sealing property of the battery pile is excellent, the property of the battery pile is increased, the weight of the battery pile is reduced and the assembling speed of the battery pile is greatly increased by the structure. The air cooling type proton exchange membrane fuel battery pile comprises a fuel battery main body section and is characterized in that current collecting plates are respectively arranged on two sides of the fuel battery main body section; insulating end plates are respectively arranged outside the current collecting plates; the peripheries of the insulating end plates are exposed on the current collecting plates; a fastening screw rod and a fastening nut are used for fastening and connecting the insulating end plates on the two sides and tightly pressing the current collecting plates and the fuel battery main body section; a top plate and a hydrogen inlet external head pipe end plate are arranged at the top of the fuel battery main body section; and the top plate is fastened and spliced with the tops of the insulating end plates on the two sides through adhesives and is fastened through screws.
Description
Technical field
The present invention relates to the technical field of Proton Exchange Membrane Fuel Cells, be specially air-cooled pem fuel cell stack.
Background technology
Existing air-cooling fuel cell bipolar plates, its patent No.: 201020606479.0, Granted publication day: on 06 01st, 2011, title: a kind of air-cooled proton, this patent is described below:
The one side of bipolar plates is that negative electrode pole-face, another side are anode pole-face, it is characterized in that: described negative electrode pole-face has negative electrode seal groove cavity, the parallel straight way of described negative electrode seal groove cavity parcel air, the parallel straight way of described air is communicated with extraneous air by the air inlet straight trough of both sides, and described air inlet straight trough is positioned at described negative electrode seal groove cavity thickness direction inner side; The two ends of described anode pole-face have through hole, described anode pole-face has hydrogen runner, described anode pole-face has anode seal slot cavity body, described anode seal slot cavity body surrounds two through holes, hydrogen runner separately respectively, two described through hole inner sides have conduction trough and are communicated with described hydrogen runner, and described conduction trough is positioned at described anode seal slot cavity body thickness direction inner side.
This structure is because hydrogen passes through bipolar plates in vertical direction, therefore in order to prevent hydrogen and air gas blowby, must in anode seal slot cavity body and negative electrode seal groove cavity, put into rubber seal, need thicker end plate and thicker screw rod simultaneously, required very large pretightning force when guaranteeing pile assembling, thereby make rubber seal indentation sealing slot cavity body, even so, due to rubber seal gauge, the depth dimensions of seal groove cavity is difficult to control, it is very complicated and consuming time when therefore this bipolar plates is used for assembling pile, still often there is gas blowby in the pile after assembling, can not guarantee sealing effectiveness, thereby affect the performance of pile.
Summary of the invention
For the problems referred to above, the invention provides air-cooled pem fuel cell stack, this structure separates battery pile cathode side air and anode-side hydrogen completely, therefore, the gas tightness of pile is excellent, thereby can improve the performance of pile, and this structure can reduce the weight of pile, greatly improve pile assembling speed.
Air-cooled pem fuel cell stack, its technical scheme is such: it comprises fuel cell main body section, it is characterized in that: the both sides of the body section of described fuel cell are respectively arranged with collector plate, the outside of described collector plate is respectively arranged with insulating end plate, the surrounding of described insulating end plate exposes to described collector plate, fastening screw, fastening nut is fastenedly connected the described insulating end plate of both sides, and compress collector plate and fuel cell main body section, the top of described fuel cell main body section is provided with top board, the outer total tube end sheet of hydrogen gas, the top of the fastening described insulating end plate by the bonding both sides of bonding agent of described top board, and connect with fastened by screw, install in seam at the top that the outer total tube end sheet of described hydrogen gas is fastenedly connected the described insulating end plate of both sides, the outer total tube end sheet of described hydrogen gas, between top board, by bonding agent joint filling, encapsulate, the long siphunculus of air inlet of the outer total tube end sheet of described hydrogen gas is communicated with each hydrogen gas pipe of described fuel cell main body section, in the long siphunculus of described air inlet and in the gap of the sub-tube outer surface of each hydrogen gas, is filled with bonding agent, the bottom of described fuel cell main body section is provided with base plate, the hydrogen outer total tube end sheet of giving vent to anger, described base plate is by the bottom of the described insulating end plate of the bonding both sides of bonding agent and connect with fastened by screw, install in seam the described hydrogen bottom that outer total tube end sheet is fastenedly connected the described insulating end plate of both sides of giving vent to anger, and described hydrogen is given vent to anger and by bonding agent joint filling, encapsulated between outer total tube end sheet, base plate, described hydrogen each hydrogen that the long siphunculus of giving vent to anger of outer total tube end sheet is communicated with described fuel cell main body section son pipe of giving vent to anger of giving vent to anger, in the described long siphunculus of giving vent to anger and each hydrogen give vent to anger in the gap of sub-tube outer surface and be filled with bonding agent, the outer total tube end sheet of described hydrogen gas, the hydrogen outer total tube end sheet of giving vent to anger lays respectively at the diagonal positions of described insulating end plate, fan board is positioned at the front of described fuel cell main body section, described fan board is by the front end face of the described insulating end plate of the bonding both sides of bonding agent and connect with fastened by screw, between described fan board and described top board, by bonding agent joint filling, encapsulate, described fan board and described hydrogen are given vent to anger and by bonding agent joint filling, are encapsulated between outer total tube end sheet, on described fan board, be evenly equipped with fan through hole, described fan is fixed on described fan board by screw, and the flabellum of described fan is aimed at fan through hole.
It is further characterized in that:
Described fuel cell main body section consists of air unipolar plate and uniform bipolar plates mea zoarium, its annexation is: bipolar plates mea zoarium stacks gradually, the membrane electrode laminating of the negative electrode pole-face of the air unipolar plate of one side of described fuel cell main body section and adjacent bipolar plates mea zoarium, the plane of described air unipolar plate is fitted with the collector plate of this side; Negative electrode pole-face and the collector plate of the bipolar plates mea zoarium of the end of the opposite side of described fuel cell main body section are directly fitted;
Described bipolar plates mea zoarium comprises bipolar plates, membrane electrode, the one side of described bipolar plates is negative electrode pole-face, another side is anode pole-face, described in a slice, described in the negative electrode pole-face of bipolar plates and another sheet, between the anode pole-face of bipolar plates, be packaged with described membrane electrode, the air straight way that the both lateral sides that has the non-end position of described negative electrode pole-face runs through, described anode pole-face both ends have gas collection groove, described anode pole-face is provided with hydrogen flow path groove, all described hydrogen flow path groove are communicated with described gas collection groove, the sub-pipe of hydrogen is positioned at the outer edge thickness plane of described bipolar plates, described hydrogen pipe is communicated with described gas collection groove, the fit cathode gas diffusion layer of described membrane electrode of the negative electrode pole-face of the described bipolar plates after encapsulation, described air straight way is communicated with the outer surface of described cathode gas diffusion layer, the anode pole-face of described bipolar plates contacts with the anode gas diffusion layer outer surface of described membrane electrode, and the anode pole-face of bipolar plates, the surrounding of membrane electrode is provided with anode encapsulation groove, bonding agent encapsulates described anode encapsulation groove, described hydrogen flow path groove is communicated with the outer surface of the anode gas diffusion layer of described membrane electrode, described gas collection groove is respectively air inlet gas collection groove, the gas collection groove of giving vent to anger, the sub-pipe of described hydrogen is specially hydrogen gas pipe, the hydrogen pipe of giving vent to anger, described hydrogen gas pipe is communicated with described air inlet gas collection groove, the described hydrogen pipe gas collection groove of giving vent to anger described in being communicated with of giving vent to anger,
The one side of described air unipolar plate is that negative electrode pole-face, another side are plane, and the non-end position of described negative electrode pole-face has the air straight way that both lateral sides runs through; Described air straight way is evenly arranged and is parallel to each other;
The cathode gas diffusion layer of the membrane electrode of the negative electrode pole-face laminating adjacent bipolar plates mea zoarium of described air unipolar plate;
The outer total tube end sheet of described hydrogen gas comprises fluting end plate, plunger, described fluting end plate is installed in seam across the top of two described insulating end plates, and pass through screw fastening, described cover of plunger is loaded on described fluting end plate, the long siphunculus of described air inlet is specially described cover of plunger and is loaded on the cell body that described fluting end plate forms, the sub-pipe of hydrogen gas of described bipolar plates one side gos deep in the long siphunculus of air inlet of described fluting end plate, in the long siphunculus of air inlet, in gap outside the sub-pipe of hydrogen gas, load binding agent, form binding agent encapsulated layer, on described plunger, have hydrogen gas hole, described hydrogen gas hole is communicated with the long siphunculus of described air inlet,
The give vent to anger structural similarity of the structure of outer total tube end sheet and the outer total tube end sheet of described hydrogen gas of described hydrogen, it comprises the fluting end plate of giving vent to anger, the plunger of giving vent to anger, the described fluting end plate of giving vent to anger is installed in seam across the bottom of two described insulating end plates, and pass through screw fastening, the fluting end plate of giving vent to anger described in described outgassing column gag is loaded on, the described long siphunculus of giving vent to anger is specially the described outgassing column gag cell body that fluting end plate forms of giving vent to anger described in being loaded on, give vent to anger son pipe of the hydrogen of described bipolar plates one side is given vent to anger described in deeply in the long siphunculus of giving vent to anger of fluting end plate, in the long siphunculus of giving vent to anger, in the gap that hydrogen is given vent to anger outside sub-pipe, load binding agent, form binding agent encapsulated layer, described outgassing column has hydrogen venthole beyond the Great Wall, the described long siphunculus of giving vent to anger is communicated with described hydrogen venthole,
Hydrogen inlet fitting sleeve is loaded on described hydrogen gas hole;
Hydrogen outlet fitting sleeve is loaded on described hydrogen venthole.
Adopt after the present invention, the part of accepting air, passing into hydrogen of the body of fuel cell is isolated completely by bonding agent, guarantee that battery pile cathode side air and anode-side hydrogen separate completely, therefore the gas tightness of pile is excellent, thereby can improve the performance of pile, and this structure is without using thicker end plate and thicker screw rod, required very large pretightning force when guaranteeing pile assembling, therefore can reduce the weight of pile, greatly improve pile assembling speed.
Accompanying drawing explanation
Fig. 1 is stereogram structural representation of the present invention;
Fig. 2 is stereogram structural representation of the present invention;
Fig. 3 is assembling schematic diagram of the present invention;
Fig. 4 is position relationship and the structural representation of fuel cell main body section of the present invention;
Fig. 5 is position relationship and the structural representation of adjacent two bipolar plates mea zoariums of the present invention;
Fig. 6 is the structural representation of negative electrode pole-face of the present invention;
Fig. 7 is the structural representation of anode pole-face of the present invention;
Fig. 8 is film electrode structure schematic diagram of the present invention;
Fig. 9 is the structural representation of the concrete encapsulation embodiment mono-of bipolar plates of the present invention and membrane electrode assembly;
Figure 10 is the structural representation of the concrete encapsulation embodiment bis-of bipolar plates of the present invention and membrane electrode assembly;
Figure 11 is the fluting end plate of the outer total tube end sheet of hydrogen gas and the structural representation of plunger;
Figure 12 is the cross-sectional view that the outer total tube end sheet of hydrogen gas is connected with hydrogen gas pipe.
Embodiment
See Fig. 1-12, it comprises fuel cell main body section 3, the both sides of the body section 3 of fuel cell are respectively arranged with collector plate 2, the outside of collector plate 2 is respectively arranged with insulating end plate 1, the surrounding of insulating end plate 1 exposes to collector plate 2, fastening screw 4, fastening nut 5 is fastenedly connected the insulating end plate 1 of both sides, and compress collector plate 2 and fuel cell main body section 3, the top of fuel cell main body section 3 is provided with top board 10, the outer total tube end sheet 45 of hydrogen gas, the top of the fastening insulating end plate 1 by the bonding both sides of bonding agent of top board 10, and connect with fastened by screw, install in seam 36 at the top that the outer total tube end sheet 45 of hydrogen gas is fastenedly connected the insulating end plate 1 of both sides, the outer total tube end sheet 45 of hydrogen gas, 10, top board encapsulates by bonding agent joint filling, the long siphunculus 37 of air inlet of the outer total tube end sheet 45 of hydrogen gas is communicated with each hydrogen gas pipe 32 of fuel cell main body section 3, in the long siphunculus 37 of air inlet and in the gap of each hydrogen gas pipe 32 outer surfaces, is filled with bonding agent,
The bottom of fuel cell main body section 3 is provided with base plate 11, the hydrogen outer total tube end sheet 46 of giving vent to anger, the bottom of base plate 11 by the insulating end plate 1 of the bonding both sides of bonding agent also connects with fastened by screw, install in seam 48 the hydrogen bottom that outer total tube end sheet 46 is fastenedly connected the insulating end plate 1 of both sides of giving vent to anger, and give vent to anger outer total tube end sheet 46,11 of base plates of hydrogen encapsulates by bonding agent joint filling; Hydrogen each hydrogen that the long siphunculus of giving vent to anger of outer total tube end sheet 46 49 is communicated with fuel cell main body sections 3 son pipe 33 of giving vent to anger of giving vent to anger, the long siphunculus 49 of giving vent to anger in and each hydrogen of giving vent to anger manage in the gap of 33 outer surfaces and be filled with bonding agent;
The outer total tube end sheet 45 of hydrogen gas, the hydrogen outer total tube end sheet 46 of giving vent to anger lays respectively at the diagonal positions of insulating end plate 1;
Fan board 9 is positioned at the front of fuel cell main body section 3, the front end face of fan board 9 by the insulating end plate 1 of the bonding both sides of bonding agent also connects with fastened by screw, between fan board 9 and top board 10, by bonding agent joint filling, encapsulate, fan board 9 and hydrogen are given vent to anger and by bonding agent joint filling, are encapsulated between outer total tube end sheet 46; On fan board 9, be evenly equipped with fan through hole 47, fan 8 is fixed on fan board 9 by screw, and the flabellum of fan 8 is aimed at fan through hole 47.
It is further characterized in that:
Fuel cell main body section 3 consists of air unipolar plate 12 and uniform bipolar plates mea zoarium 13, its annexation is: bipolar plates mea zoarium 13 stacks gradually, the membrane electrode laminating of the negative electrode pole-face of the air unipolar plate 12 of one side of fuel cell main body section 3 and adjacent bipolar plates mea zoarium 13, the plane 16 of air unipolar plate 12 and 2 laminatings of the collector plate of this side; The negative electrode pole-face 14 of the bipolar plates mea zoarium 13 of the end of the opposite side of fuel cell main body section 3 is directly fitted with the collector plate 2 of this side;
Bipolar plates mea zoarium comprises bipolar plates 17, membrane electrode 15, the one side of bipolar plates 17 is negative electrode pole-face 14, another side is anode pole-face 18, between the negative electrode pole-face 14 of a slice bipolar plates 17 and the anode pole-face 18 of another sheet bipolar plates 17, be packaged with membrane electrode 15, the air straight way 19 that the both lateral sides that has the non-end position of negative electrode pole-face 14 runs through, anode pole-face 18 both ends have gas collection groove, anode pole-face 18 is provided with hydrogen flow path groove 20, all hydrogen flow path groove 20 are communicated with gas collection groove, the sub-pipe of hydrogen is positioned at the outer edge thickness plane of bipolar plates 17, hydrogen pipe is communicated with gas collection groove, the cathode gas diffusion layer 21 of the negative electrode pole-face 14 laminating film electrodes 15 of the bipolar plates 17 after encapsulation, air straight way 19 is communicated with the outer surface of cathode gas diffusion layer 21, the anode pole-face 18 of bipolar plates 17 contacts with anode gas diffusion layer 22 outer surfaces of membrane electrode 15, and the anode pole-face 18 of bipolar plates 17, the surrounding of membrane electrode 15 is provided with anode encapsulation groove 23, bonding agent 24 encapsulation anode encapsulation grooves 23, hydrogen flow path groove 20 is communicated with the outer surface of the anode gas diffusion layer 22 of membrane electrode 15, gas collection groove is respectively air inlet gas collection groove 30, the gas collection groove 31 of giving vent to anger, and the sub-pipe of hydrogen is specially hydrogen gas pipe 32, the hydrogen pipe 33 of giving vent to anger, and hydrogen gas pipe 32 is communicated with air inlet gas collection grooves 30, and the hydrogen pipe 33 of giving vent to anger is communicated with the gas collection groove 31 of giving vent to anger,
The one side of air unipolar plate 12 is that negative electrode pole-face 14, another side are plane 16, and the non-end position of negative electrode pole-face 14 has the air straight way 19 that both lateral sides runs through; Air straight way 19 is evenly arranged and is parallel to each other;
The cathode gas diffusion layer 21 of the membrane electrode 15 of the negative electrode pole-face 14 laminating adjacent bipolar plates mea zoariums 13 of air unipolar plate 12;
The outer total tube end sheet 45 of hydrogen gas comprises fluting end plate 34, plunger 35, fluting end plate 34 is installed in seam 36 across the top of two insulating end plates 1, and pass through screw fastening, plunger 35 mounts cover in fluting end plate 34, the long siphunculus 37 of air inlet is specially plunger 35 and mounts cover the cell body forming in fluting end plate 34, the hydrogen gas pipe 32 of bipolar plates 17 1 sides is deeply slotted in the long siphunculus 37 of air inlet of end plate 34, in the long siphunculus 37 of air inlet, in gap outside hydrogen gas pipe 32, load binding agent, form binding agent encapsulated layer 38, on plunger 35, have hydrogen gas hole 44, hydrogen gas hole 44 is communicated with the long siphunculus 37 of air inlet, hydrogen inlet joint 6 is set in hydrogen gas hole 44,
The length of hydrogen gas pipe 32 is less than the degree of depth of the long siphunculus 37 of air inlet, and the thickness of binding agent encapsulated layer 38 is less than or waits sub 32 the length of managing of hydrogen gas.The stopper head 39 of plunger 35 is filled in the siphunculus depression 40 of fluting end plate 34 and is placed on the step 41 of fluting end plate 34, the interior filling binding agent of seal groove 42 on step 41 sides, make to slot end plate 34 and plunger 35 is packaged together, and further by screw, plunger 35 and fluting end plate 34 linked together and forms the outer total tube end sheet 45 of hydrogen gas.Space between the surrounding wall of the end face of the binding agent encapsulated layer 38 in long through-hole 37, the surface of stopper head 39, long through-hole 37 surrounds hydrogen passage 43 jointly.Hydrogen gas pipe 32 is communicated with hydrogen passage 43;
The give vent to anger structural similarity of the structure of outer total tube end sheet 46 and the outer total tube end sheet 45 of hydrogen gas of hydrogen, it comprises the fluting end plate 50 of giving vent to anger, the plunger 51 of giving vent to anger, the fluting end plate 50 of giving vent to anger is installed in seam 48 across the bottom of two insulating end plates 1, and pass through screw fastening, the plunger 51 of giving vent to anger mounts cover in the fluting end plate 50 of giving vent to anger, the long siphunculus 49 of giving vent to anger is specially the plunger 51 of giving vent to anger and mounts cover the cell body forming in the fluting end plate 50 of giving vent to anger, the hydrogen of the bipolar plates one side son pipe 33 of giving vent to anger is deeply given vent to anger in the long siphunculus 49 of giving vent to anger of fluting end plate 50, in the long siphunculus 49 of giving vent to anger, in the gap that hydrogen is given vent to anger outside son pipe 33, load binding agent, form binding agent encapsulated layer, give vent to anger on plunger 51 and have hydrogen venthole 52, the long siphunculus 49 of giving vent to anger is communicated with hydrogen venthole 52,
Hydrogen outlet joint 7 is set in hydrogen venthole 52.
Membrane electrode 15 comprises anode gas diffusion layer 22, anode catalyst layer 25, proton exchange membrane 26, cathode catalysis layer 27, cathode gas diffusion layer 21, and proton exchange membrane 26 is specially hydrogen ion exchange membrane;
Specific embodiment one, is shown in Fig. 9: the anode gas diffusion layer 22 of the membrane electrode 15 after encapsulation, the surrounding of anode catalyst layer 25 are provided with anode encapsulation groove 23;
Specific embodiment two, see Figure 10: the anode gas diffusion layer 22 of the membrane electrode 15 after encapsulation, the surrounding of anode catalyst layer 25 are provided with inner anode encapsulation groove 28, the surrounding of the anode pole-face 18 of contact anode gas diffusion layer 22 is provided with outer anode encapsulation groove 29, and inner anode encapsulation groove 28, outer anode encapsulation groove 29 are interconnected and form whole anode encapsulation groove 23.
Claims (9)
1. air-cooled pem fuel cell stack, it comprises fuel cell main body section, it is characterized in that: the both sides of the body section of described fuel cell are respectively arranged with collector plate, the outside of described collector plate is respectively arranged with insulating end plate, the surrounding of described insulating end plate exposes to described collector plate, fastening screw, fastening nut is fastenedly connected the described insulating end plate of both sides, and compress collector plate and fuel cell main body section, the top of described fuel cell main body section is provided with top board, the outer total tube end sheet of hydrogen gas, described top board is fastening is by the top of the described insulating end plate of the bonding both sides of bonding agent, and connect with fastened by screw, the outer total tube end sheet of described hydrogen gas is fastenedly connected in the top of the described insulating end plate of both sides and installs in seam, the outer total tube end sheet of described hydrogen gas, between top board, by bonding agent joint filling, encapsulate, the long siphunculus of air inlet of the outer total tube end sheet of described hydrogen gas is communicated with each hydrogen gas pipe of described fuel cell main body section, in the long siphunculus of described air inlet and in the gap of the sub-tube outer surface of each hydrogen gas, is filled with bonding agent, the bottom of described fuel cell main body section is provided with base plate, the hydrogen outer total tube end sheet of giving vent to anger, described base plate is by the bottom of the described insulating end plate of the bonding both sides of bonding agent and connect with fastened by screw, the described hydrogen outer total tube end sheet of giving vent to anger is fastenedly connected in the bottom of the described insulating end plate of both sides and installs in seam, and described hydrogen is given vent to anger and by bonding agent joint filling, encapsulated between outer total tube end sheet, base plate, described hydrogen each hydrogen that the long siphunculus of giving vent to anger of outer total tube end sheet is communicated with described fuel cell main body section son pipe of giving vent to anger of giving vent to anger, in the described long siphunculus of giving vent to anger and each hydrogen give vent to anger in the gap of sub-tube outer surface and be filled with bonding agent, the outer total tube end sheet of described hydrogen gas, the hydrogen outer total tube end sheet of giving vent to anger lays respectively at the diagonal positions of described insulating end plate, fan board is positioned at the front of described fuel cell main body section, described fan board is by the front end face of the described insulating end plate of the bonding both sides of bonding agent and connect with fastened by screw, between described fan board and described top board, by bonding agent joint filling, encapsulate, described fan board and described hydrogen are given vent to anger and by bonding agent joint filling, are encapsulated between outer total tube end sheet, on described fan board, be evenly equipped with fan through hole, fan is fixed on described fan board by screw, and the flabellum of described fan is aimed at fan through hole.
2. air-cooled pem fuel cell stack according to claim 1, it is characterized in that: described fuel cell main body section consists of air unipolar plate and uniform bipolar plates mea zoarium, its annexation is: bipolar plates mea zoarium stacks gradually, the membrane electrode laminating of the negative electrode pole-face of the air unipolar plate of one side of described fuel cell main body section and adjacent bipolar plates mea zoarium, the plane of described air unipolar plate is fitted with the collector plate of this side; Negative electrode pole-face and the collector plate of the bipolar plates mea zoarium of the end of the opposite side of described fuel cell main body section are directly fitted.
3. air-cooled pem fuel cell stack according to claim 2, it is characterized in that: described bipolar plates mea zoarium comprises bipolar plates, membrane electrode, the one side of described bipolar plates is negative electrode pole-face, another side is anode pole-face, described in a slice, described in the negative electrode pole-face of bipolar plates and another sheet, between the anode pole-face of bipolar plates, be packaged with described membrane electrode, the air straight way that the both lateral sides that has the non-end position of described negative electrode pole-face runs through, described anode pole-face both ends have gas collection groove, described anode pole-face is provided with hydrogen flow path groove, all described hydrogen flow path groove are communicated with described gas collection groove, the sub-pipe of hydrogen is positioned at the outer edge thickness plane of described bipolar plates, described hydrogen pipe is communicated with described gas collection groove, the fit cathode gas diffusion layer of described membrane electrode of the negative electrode pole-face of the described bipolar plates after encapsulation, described air straight way is communicated with the outer surface of described cathode gas diffusion layer, the anode pole-face of described bipolar plates contacts with the anode gas diffusion layer outer surface of described membrane electrode, and the anode pole-face of bipolar plates, the surrounding of membrane electrode is provided with anode encapsulation groove, bonding agent encapsulates described anode encapsulation groove, described hydrogen flow path groove is communicated with the outer surface of the anode gas diffusion layer of described membrane electrode, described gas collection groove is respectively air inlet gas collection groove, the gas collection groove of giving vent to anger, the sub-pipe of described hydrogen is specially hydrogen gas pipe, the hydrogen pipe of giving vent to anger, described hydrogen gas pipe is communicated with described air inlet gas collection groove, the described hydrogen pipe gas collection groove of giving vent to anger described in being communicated with of giving vent to anger.
4. air-cooled pem fuel cell stack according to claim 3, is characterized in that: the one side of described air unipolar plate is that negative electrode pole-face, another side are plane, and the non-end position of described negative electrode pole-face has the air straight way that both lateral sides runs through; Described air straight way is evenly arranged and is parallel to each other.
5. air-cooled pem fuel cell stack according to claim 4, is characterized in that: the cathode gas diffusion layer of the membrane electrode of the negative electrode pole-face laminating adjacent bipolar plates mea zoarium of described air unipolar plate.
6. air-cooled pem fuel cell stack according to claim 1, it is characterized in that: the outer total tube end sheet of described hydrogen gas comprises fluting end plate, plunger, described fluting end plate is installed in seam across the top of two described insulating end plates, and pass through screw fastening, described cover of plunger is loaded on described fluting end plate, the long siphunculus of described air inlet is specially described cover of plunger and is loaded on the cell body that described fluting end plate forms, the sub-pipe of hydrogen gas of bipolar plates one side gos deep in the long siphunculus of air inlet of described fluting end plate, in the long siphunculus of air inlet, in gap outside the sub-pipe of hydrogen gas, load binding agent, form binding agent encapsulated layer, on described plunger, have hydrogen gas hole, described hydrogen gas hole is communicated with the long siphunculus of described air inlet.
7. air-cooled pem fuel cell stack according to claim 1, it is characterized in that: the give vent to anger structural similarity of the structure of outer total tube end sheet and the outer total tube end sheet of described hydrogen gas of described hydrogen, it comprises the fluting end plate of giving vent to anger, the plunger of giving vent to anger, the described fluting end plate of giving vent to anger is installed in seam across the bottom of two described insulating end plates, and pass through screw fastening, the fluting end plate of giving vent to anger described in described outgassing column gag is loaded on, the described long siphunculus of giving vent to anger is specially the described outgassing column gag cell body that fluting end plate forms of giving vent to anger described in being loaded on, give vent to anger son pipe of the hydrogen of bipolar plates one side is given vent to anger described in deeply in the long siphunculus of giving vent to anger of fluting end plate, in the long siphunculus of giving vent to anger, in the gap that hydrogen is given vent to anger outside sub-pipe, load binding agent, form binding agent encapsulated layer, described outgassing column has hydrogen venthole beyond the Great Wall, the described long siphunculus of giving vent to anger is communicated with described hydrogen venthole.
8. air-cooled pem fuel cell stack according to claim 6, is characterized in that: hydrogen inlet fitting sleeve is loaded on described hydrogen gas hole.
9. air-cooled pem fuel cell stack according to claim 7, is characterized in that: hydrogen outlet fitting sleeve is loaded on described hydrogen venthole.
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| CN109585893B (en) * | 2018-12-04 | 2021-04-06 | 大连交通大学 | Long-life fuel cell and manufacturing method thereof |
| CN113506886A (en) * | 2021-07-15 | 2021-10-15 | 中国科学院长春应用化学研究所 | Flexible proton exchange membrane fuel cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1754279A (en) * | 2003-02-27 | 2006-03-29 | 布罗托尼克斯技术公司 | Externally manifolded membrane based electrochemical cell stacks |
| CN102013493A (en) * | 2010-11-15 | 2011-04-13 | 无锡国赢科技有限公司 | Air-cooled proton exchange membrane fuel cell bipolar plate |
| CN202917588U (en) * | 2012-08-03 | 2013-05-01 | 无锡国赢科技有限公司 | Air-cooled proton exchange membrane fuel cell stack |
Non-Patent Citations (1)
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| JP特开2007-179992A 2007.07.12 * |
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