CN101853953A - Fuel cell structure with composite pole plate and its composite pole plate structure - Google Patents
Fuel cell structure with composite pole plate and its composite pole plate structure Download PDFInfo
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- CN101853953A CN101853953A CN200910130373A CN200910130373A CN101853953A CN 101853953 A CN101853953 A CN 101853953A CN 200910130373 A CN200910130373 A CN 200910130373A CN 200910130373 A CN200910130373 A CN 200910130373A CN 101853953 A CN101853953 A CN 101853953A
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- 239000000446 fuel Substances 0.000 title claims abstract description 131
- 239000002131 composite material Substances 0.000 title claims abstract 30
- 239000011148 porous material Substances 0.000 claims abstract description 48
- 239000010409 thin film Substances 0.000 claims abstract description 36
- 239000012528 membrane Substances 0.000 claims abstract description 24
- 239000003054 catalyst Substances 0.000 claims abstract description 17
- 239000004020 conductor Substances 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 24
- 239000012811 non-conductive material Substances 0.000 claims 6
- 239000010408 film Substances 0.000 claims 2
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- 238000010248 power generation Methods 0.000 abstract 1
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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 relates to a fuel cell structure with a composite polar plate and the composite polar plate structure. The fuel cell structure with the composite polar plate comprises: a battery thin film module, comprising: a proton exchange membrane; a pair of catalyst layers arranged on two sides of the proton exchange membrane; and a pair of electrode layers disposed outside the catalyst layer; a first composite polar plate, which is arranged on the first outer side surface of the battery thin film group and is provided with: the first porous material plate is provided with a first bottom plate and a first frame body, the first frame body is combined on the first bottom plate to form a first groove, and a first drainage channel is arranged at the position where the first bottom plate is not combined with the first frame body; the at least one first porous material plate is arranged in the first groove and clamped between the battery thin film group and the first bottom plate; and a collector plate disposed on the second outer side of the battery thin film group. The invention also provides a composite polar plate structure. The invention can improve the fuel flowing speed, lead the reaction product out of the fuel cell quickly and improve the power generation efficiency of the fuel cell.
Description
Technical field
The present invention relates to a kind of fuel cell structure and compound polar plate structure thereof, particularly relate to a kind of fuel cell structure with compound polar plate and compound polar plate structure thereof that is applied to fuel cell with compound polar plate.
Background technology
Because fuel cell has high efficiency and the low two big advantages characteristics that pollute, therefore various countries' exploitation and research of all actively dropping into fuel cell in recent years, membrane fuel cell (the Polymer Electrolyte Membrane Fuel Cell that wherein belongs to low form (being lower than 100), PEMFC), on system combination is used, no matter be that material is selected, temperature control, safety guarantee, system maintenance ... wait all and simplify than the fuel cell of other types, so can significantly reduce the cost that devotes system combination, so various countries all list the exploitation of membrane fuel cell in the emphasis science and technology of new century energy technology exploitation.
Fig. 1 is the cross-sectional view of existing known fuel cell.See also shown in Figure 1ly, existing known fuel cell 10 comprises a battery thin film group 11 (Membrane Electrode Assembly) and a pair of bipolar plates 12.Battery thin film group 11 comprises a proton exchange membrane 111, a pair of catalyst layer 112, an anode 113 and a negative electrode 114, and catalyst layer 112 is positioned at the two sides of proton exchange membrane 111, and the outside of catalyst layer 112 is respectively equipped with anode 113 and negative electrode 114 again.Two outsides of battery thin film group 11 then are folded with bipolar plates 12, and bipolar plates 12 is provided with fuel flow channel 121 with respect to the medial surface of battery thin film group 11,121 of fuel flow channels enter anode 113 and negative electrode 114 in order to supply oxygen and hydrogen respectively, and make battery thin film group 11 can carry out electrochemical reaction.Therefore, whether the length of fuel flow channel 121, cross sectional shape and size all influence oxygen and hydrogen can smooth and easy circulation and contact evenly with battery thin film group 11, and and then influences fuel and the degree of 11 electrochemical reactions of battery thin film group and the generating efficiency of integral battery door.
In addition, described in " membrane fuel cell of porous bipolar plates " of No. 553496 exposure of the novel patent announcement of TaiWan, China, wherein each porous bipolar plates is to establish an atresia metallic plate by two expanded metal therebetween to be constituted, and atresia metallic plate and expanded metal need use identical materials, just can reach good generating effect.Therefore, though above-mentioned patent can utilize the hole of porous bipolar plates to provide fuel freely to flow, to prolong the reaction time of electrochemical reaction, improve the existing disappearance of commonly using, but the material of expanded metal and atresia metallic plate all need use the metal material with conductivity, and material must identically just can be bought row reaction generating, if the material difference of the two will influence its generating effect, and expanded metal and atresia metallic plate are except influencing the generating effect easily because of chemical reaction is overheated, also can shorten its useful life, and have some risks.
In order to improve above-mentioned disappearance again, disclose described in " fuel cell of combined type porous pole plate " that discloses for No. 200822434 as the TaiWan, China patent of invention, the collector plate of fuel cell mainly by monolithic or multi-disc porous material plate and at least a slice pore-free material plate constituted, and porous material plate and non-pored wood flitch can be different materials.Therefore, can provide fuel to flow freely and diffuse to electrode by the hole of porous material plate, and can utilize combined type porous pole plate to replace existing known bipolar plates,, more can reduce cost and shorten process time to reach the purpose that reduces volume and weight.In addition, because porous material plate and non-pored wood flitch can be different materials, so the more diversification of the material that can select for use.
Yet, because the temperature of membrane fuel cell is lower than 100 mostly, so product-water of fuel cell, can produce with the form of liquid, if the hypervolia that electrochemical reaction produced and when failing to get rid of immediately, water can collect in the combined type porous pole plate and produce the situation of ponding, and cause the phenomenon of overflowing, and then stop up hole in the porous material plate, and make fuel sustainable supply reaction effectively, will significantly reduce the electricity generation efficiency of fuel cell thus.
This shows that above-mentioned existing fuel cell structure and compound polar plate structure thereof obviously still have inconvenience and defective, and demand urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore the fuel cell structure with compound polar plate and the compound polar plate structure thereof of how to found a kind of new structure belongs to one of current important research and development problem in fact, and also becoming the current industry utmost point needs improved target.
Summary of the invention
The objective of the invention is to, overcome the defective that existing fuel cell structure and compound polar plate structure thereof exist, and provide a kind of fuel cell structure with compound polar plate and compound polar plate structure thereof of new structure, technical problem to be solved is to make it improve the situation of ponding in the fuel cell structure, can be very suitable for practicality by the setting of sluice way so that water can be discharged fuel cell apace by sluice way.
Another object of the present invention is to, overcome the defective that existing fuel cell structure and compound polar plate structure thereof exist, and provide a kind of fuel cell structure with compound polar plate and compound polar plate structure thereof of new structure, technical problem to be solved is to make its setting by sluice way, to avoid the hole in the porous material plate to stop up, and then fuel can be reacted effectively, so that the electricity generation efficiency of fuel cell can significantly improve, thereby be suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of fuel cell structure with compound polar plate that the present invention proposes, it comprises: a battery thin film group, and it has: a proton exchange membrane; A pair of catalyst layer, it is arranged at the two sides of this proton exchange membrane respectively; And pair of electrode layers, it is arranged at this lateral surface to catalyst layer respectively; One first compound polar plate, it is arranged at one first lateral surface of this battery thin film group, and this first compound polar plate has: one first non-pored wood flitch, it has one first base plate and one first framework, this first framework is incorporated on this first base plate and is formed with one first groove, and this first base plate does not have at least one first sluice way with this first framework junction; And at least one first porous material plate, its be arranged in this first groove and be located in this battery thin film group and this first base plate between; And a collector plate, it is arranged at one second lateral surface of this battery thin film group.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid fuel cell structure with compound polar plate, the element that wherein said first base plate and this first framework are formed in one.
Aforesaid fuel cell structure with compound polar plate, wherein said first sluice way are that a Cyclotron sluice way, a snake shape sluice way, refer to insert shape sluice way, a latticed sluice way or a parallel sluice way.
Aforesaid fuel cell structure with compound polar plate, the material of the wherein said first porous material plate are an electric conducting material or a non-conducting material.
Aforesaid fuel cell structure with compound polar plate, the material of the wherein said first non-pored wood flitch are an electric conducting material or a non-conducting material.
Aforesaid fuel cell structure with compound polar plate, wherein said first base plate is provided with at least one first osculum, and this first osculum and this first sluice way are interconnected.
Aforesaid fuel cell structure with compound polar plate, wherein said collector plate are a bipolar plates or one second compound polar plate.
Aforesaid fuel cell structure with compound polar plate, wherein said second compound polar plate has: one second non-pored wood flitch, it has one second base plate and one second framework, this second framework is incorporated on this second base plate and is formed with one second groove, and this second base plate does not have at least one second sluice way with this second framework junction; And at least one second porous material plate, it is arranged in this second groove, and is located between this battery thin film group and this second base plate.
Aforesaid fuel cell structure with compound polar plate, the element that wherein said second base plate and this second framework are formed in one.
Aforesaid fuel cell structure with compound polar plate, wherein said second sluice way are that a Cyclotron sluice way, a snake shape sluice way, refer to insert shape sluice way, a latticed sluice way or a parallel sluice way.
Aforesaid fuel cell structure with compound polar plate, the material of the wherein said second porous material plate are an electric conducting material or a non-conducting material.
Aforesaid fuel cell structure with compound polar plate, the material of the wherein said second non-pored wood flitch are an electric conducting material or a non-conducting material.
Aforesaid fuel cell structure with compound polar plate, wherein said second base plate is provided with at least one second osculum, and this second osculum and this second sluice way are interconnected.
The object of the invention to solve the technical problems also realizes by the following technical solutions.According to a kind of compound polar plate structure that is applied to fuel cell that the present invention proposes, it comprises: a non-pored wood flitch, and it has: a base plate; And a framework, it is incorporated on this base plate and is formed with a groove, and this base plate does not have at least one sluice way with this framework junction; And at least one porous material plate, it is arranged in this groove.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
The aforesaid compound polar plate structure that is applied to fuel cell, the element that wherein said base plate and this framework are formed in one.
The aforesaid compound polar plate structure that is applied to fuel cell, wherein said sluice way are that a Cyclotron sluice way, a snake shape sluice way, refer to insert shape sluice way, a latticed sluice way or a parallel sluice way.
The aforesaid compound polar plate structure that is applied to fuel cell, the material of wherein said non-pored wood flitch are an electric conducting material or a non-conducting material.
The aforesaid compound polar plate structure that is applied to fuel cell, the material of wherein said porous material plate are an electric conducting material or a non-conducting material.
The aforesaid compound polar plate structure that is applied to fuel cell, wherein said base plate is provided with at least one osculum, and this osculum and this sluice way are interconnected.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, major technique of the present invention thes contents are as follows:
For achieving the above object, the invention provides a kind of fuel cell structure with compound polar plate, it comprises: a battery thin film group, it has: a proton exchange membrane; A pair of catalyst layer, it is arranged at the two sides of proton exchange membrane respectively; And pair of electrode layers, it is arranged at the lateral surface of catalyst layer respectively; One first compound polar plate, it is arranged at one first lateral surface of battery thin film group, this first compound polar plate has: one first non-pored wood flitch, it has one first base plate and one first framework, this first framework is incorporated on first base plate and is formed with one first groove, and first base plate does not have at least one first sluice way with the first framework junction; And at least one first porous material plate, its be arranged in first groove and be located in the battery thin film group and first base plate between; And a collector plate, it is arranged at one second lateral surface of battery thin film group.
In addition, for achieving the above object, the present invention also provides a kind of compound polar plate structure that is applied to fuel cell, and it comprises: a non-pored wood flitch, and it has: a base plate; And a framework, it is incorporated on the base plate and is formed with a groove, and base plate does not have at least one sluice way with the framework junction; And at least one porous material plate, it is arranged in the groove.
By technique scheme, fuel cell structure and compound polar plate structure thereof that the present invention has compound polar plate have following advantage and beneficial effect at least:
One, the present invention is by the situation that can improve ponding in the compound polar plate that is provided with of sluice way.
Two, the present invention utilizes sluice way to make the product of electrochemical reaction can drain fuel cell structure apace.
Three, because the present invention can avoid the hole of water slug porous material plate, therefore can be so that fuel react in fuel cell effectively, and then significantly improve the electricity generation efficiency of fuel cell.
In sum, the invention relates to a kind of fuel cell structure and compound polar plate structure thereof with compound polar plate.The fuel cell structure that this has compound polar plate comprises: the battery thin film group; Compound polar plate; And collector plate, wherein compound polar plate and collector plate are arranged at two lateral surfaces of battery thin film group respectively.And compound polar plate has non-pored wood flitch and porous material plate, wherein the non-pored wood flitch has base plate and framework again, and framework is incorporated on the base plate and is formed with groove, base plate does not then have sluice way with the framework junction, and this porous material plate is arranged in the groove and is located between battery thin film group and the base plate.The present invention also provides a kind of compound polar plate structure.Fuel cell of the present invention can improve the flow rate of fuel by the hole on the porous material plate, can make the product (water) that carries out after the electrochemical reaction drain fuel cell apace by sluice way again, and then improve the electricity generation efficiency of fuel cell.The present invention has obvious improvement technically, and has tangible good effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the cross-sectional view of existing known fuel cell.
Fig. 2 is the exploded view of the preferred embodiment of a kind of fuel cell structure with compound polar plate of the present invention.
Fig. 3 be a kind of fuel cell structure with compound polar plate of the present invention preferred embodiment in conjunction with profile.
Fig. 4 A is that first of a kind of compound polar plate of the present invention is implemented state profile.
Fig. 4 B is that second of a kind of compound polar plate of the present invention is implemented state profile.
Fig. 5 A is that first of a kind of non-pored wood flitch of the present invention is implemented state diagram.
Fig. 5 B is that second of a kind of non-pored wood flitch of the present invention is implemented state diagram.
Fig. 5 C is that the 3rd of a kind of non-pored wood flitch of the present invention is implemented state diagram.
Fig. 5 D is that the 4th of a kind of non-pored wood flitch of the present invention is implemented state diagram.
Fig. 5 E is that the 5th of a kind of non-pored wood flitch of the present invention is implemented state diagram.
Fig. 6 is the decomposing section of the preferred embodiment of a kind of fuel cell structure with compound polar plate of the present invention.
10: fuel cell 11: the battery thin film group
111: proton exchange membrane 112: catalyst layer
113: anode 114: negative electrode
12: bipolar plates 121: fuel flow channel
20: the fuel cell structure 30 with compound polar plate: battery thin film group
31: proton exchange membrane 32: catalyst layer
33: 34: the first lateral surfaces of electrode layer
40: the first compound polar plates of 35: the second lateral surfaces
411: the first base plates of 41: the first non-pored wood flitch
413: the first grooves of 412: the first frameworks
415: the first osculums of 414: the first sluice ways
42: the first porous material plates 50: collector plate
60: fuel port 70: the fuel delivery outlet
81: the second non-pored wood flitch of 80: the second compound polar plates
812: the second frameworks of 811: the second base plates
814: the second sluice ways of 813: the second grooves
82: the second porous material plates
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to the fuel cell structure with compound polar plate and its embodiment of compound polar plate structure, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Relevant aforementioned and other technology contents, characteristics and effect of the present invention can be known to present in the detailed description of graphic preferred embodiment is consulted in following cooperation.By the explanation of embodiment, when can being to reach technological means that predetermined purpose takes and effect to obtain one more deeply and concrete understanding to the present invention, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the present invention is limited.
Fig. 2 is the exploded view of the preferred embodiment of a kind of fuel cell structure with compound polar plate of the present invention.Fig. 3 be a kind of fuel cell structure with compound polar plate of the present invention preferred embodiment in conjunction with profile.Fig. 4 A is that first of a kind of compound polar plate of the present invention is implemented state profile.Fig. 4 B is that second of a kind of compound polar plate of the present invention is implemented state profile.Fig. 5 A is that first of a kind of non-pored wood flitch of the present invention is implemented state diagram.Fig. 5 B is that second of a kind of non-pored wood flitch of the present invention is implemented state diagram.Fig. 5 C is that the 3rd of a kind of non-pored wood flitch of the present invention is implemented state diagram.Fig. 5 D is that the 4th of a kind of non-pored wood flitch of the present invention is implemented state diagram.Fig. 5 E is that the 5th of a kind of non-pored wood flitch of the present invention is implemented state diagram.Fig. 6 is the decomposing section of the preferred embodiment of a kind of fuel cell structure with compound polar plate of the present invention.
See also shown in Figure 2, a kind of fuel cell structure 20 of preferred embodiment of the present invention with compound polar plate, it comprises: a battery thin film group 30; One first compound polar plate 40; An and collector plate 50.
Shown in the 2nd figure, battery thin film group 30, it has: a proton exchange membrane 31; A pair of catalyst layer 32; And pair of electrode layers 33.Wherein mainly in order to provide proton to move to the passage of cathode side by the anode-side of electrode layer 33, catalyst layer 32 then is arranged at the two sides of proton exchange membrane 31 respectively, and electrode layer 33 also is arranged at the lateral surface of two catalyst layers 32 respectively for proton exchange membrane 31.
Offer a fuel port 60 and a fuel delivery outlet 70 on first compound polar plate 40 or the collector plate 50, therefore fuel (hydrogen) and oxidant (oxygen or air) can be by fuel port 60 and 70 inputs of fuel delivery outlet and output fuel cell structures 20, and catalyst layer 32 can react with hydrogen, use hydrogen is decomposed into proton and electronics, wherein proton can move to cathode side by proton exchange membrane 31, and electronics can form electric current along external circuit and flows, producing electric energy, oxygen is then with the electronics generation electrochemical reaction of proton that passes proton exchange membrane 31 and backflow and produce heat and product---water.
See also shown in Figure 3, first compound polar plate 40, it is arranged at one first lateral surface 34 of battery thin film group 30.And first compound polar plate 40 has: one first non-pored wood flitch 41; And at least one first porous material plate 42.
See also shown in Fig. 4 A, the first non-pored wood flitch 41, its material can be an electric conducting material or a non-conducting material, and the first non-pored wood flitch 41 has one first base plate 411 and one first framework 412, first framework 412 is incorporated on first base plate 411 and is formed with one first groove 413, and first base plate 411 then do not have at least one first sluice way 414 with first framework, 412 junctions, can be in order to water be guided out fuel cell structure 20 apace, and then avoid the situation of ponding to take place.Seeing also shown in Fig. 4 B, in order to simplify the structure of the first non-pored wood flitch 41, the element that first base plate 411 and first framework 412 can be formed in one.
Shown in Fig. 3, Fig. 4 A and Fig. 4 B, the first porous material plate 42, it is arranged in first groove 413, and the size of the big I of the first porous material plate 42 and first groove 413 cooperatively interacts, so that the first porous material plate 42 is located between the battery thin film group 30 and first base plate 411.Therefore, the fuel and the oxidant that are injected by fuel port 60 can transmit by the hole of the first porous material plate 42, and the product of electrochemical reaction---water, also can discharge apace by the hole of the first porous material plate 42.
The material of the first porous material plate 42 can be an electric conducting material or a non-conducting material, and the first porous material plate 42 can use the material identical or different with the first non-pored wood flitch 41, to cooperate various different designs demands.Therefore, first compound polar plate 40 can have the function of conduction, and first compound polar plate 40 can use cheaply, light weight reaches the element of making easily and makes, to improve the problem that traditional double pole plate volume reaches Heavy Weight greatly, and can provide good air inlet and drain function by the first porous material plate 42, so first compound polar plate 40 can have low-cost and dynamical advantage.
In addition, the product of electrochemical reaction---water is discharged apace in order to make, and avoid in first compound polar plate 40 taking place the phenomenon of edge ponding, and cause the hole of the first porous material plate 42 to be stopped up, and then the problem that reduces of the electricity generation efficiency that makes fuel cell, can utilize first sluice way 414 on first base plate 411 apace the water water conservancy diversion to be gone out fuel cell structure 20, not only can help fuel to flow, also can assist water in fuel cell structure 20, to be evenly distributed, and then discharge apace.Again in order to improve the speed that water is discharged, first sluice way 414 can refer to insert shape sluice way (shown in Fig. 5 C), a latticed sluice way (shown in Fig. 5 D) or a parallel sluice way (shown in Fig. 5 E), but be not limited only to this for a Cyclotron sluice way (shown in Fig. 5 A), a snake shape sluice way (shown in Fig. 5 B).
And owing to can improve the phenomenon of ponding by first sluice way 414, and make the fuel in the fuel cell to flow swimmingly, and therefore being compared to traditional fuel cell, the electricity generation efficiency of the fuel cell structure 20 of present embodiment can promote about about 50%.
And in order to make fuel cell structure 20 have good heat radiation and drainage effect, the first non-pored wood flitch 41 is provided with the device of air inlet, exhaust or the draining of heat radiation and multiple entry, or at least one first osculum 415 can be set on first base plate 411, and first osculum 415 and first sluice way 414 are interconnected, after making water guide to first sluice way 414 by this, can flow out fuel cell structure 20 by first osculum 415 again.
As shown in Figures 2 and 3, collector plate 50, it is arranged at one second lateral surface 35 of battery thin film group 30, use battery thin film group 30 is located between first compound polar plate 40 and the collector plate 50, collector plate 50 can be a pair of pole plate or one second compound polar plate 80 again, wherein bipolar plates is general existing known employed bipolar plates, no longer adds to give unnecessary details at this.
See also shown in Figure 6, second compound polar plate 80 is arranged at second lateral surface 35 of battery thin film group 30, use that battery thin film group 30 is located between first compound polar plate 40 and second compound polar plate 80, wherein second compound polar plate 80 has: one second non-pored wood flitch 81; And at least one second porous material plate 82.
The second non-pored wood flitch 81 has one second base plate 811 and one second framework 812, second framework 812 is incorporated on second base plate 811 and is formed with one second groove 813, and second base plate 811 does not then have at least one second sluice way 814 with second framework, 812 junctions.Second base plate 811 and one second framework 812 are the same with first base plate 411 and first framework 412, the element that can be formed in one.Second sluice way 814 also can be discharged apace in order to guiding water, and can avoid the hole of the water slug second porous material plate 82, and then improves the electricity generation efficiency of fuel cell structure 20.
Equally for fear of the phenomenon that edge ponding takes place in second compound polar plate 80, and cause the hole of the second porous material plate 82 to be stopped up, and then the problem that reduces of the electricity generation efficiency that makes fuel cell, can utilize first sluice way 814 on second base plate 811 apace the water water conservancy diversion to be gone out fuel cell structure 20.So, not only can help fuel to flow, also can assist water in fuel cell structure 20, to be evenly distributed, and then discharge apace.Again in order to improve the speed that water is discharged, second sluice way 814 is the same with first sluice way 414, can refer to insert shape sluice way (shown in Fig. 5 C), a latticed sluice way (shown in Fig. 5 D) or a parallel sluice way (shown in Fig. 5 E), but be not limited only to this for a Cyclotron sluice way (shown in Fig. 5 A), a snake shape sluice way (shown in Fig. 5 B).
And equally in order to quicken the speed that water is got rid of, at least one second osculum (figure does not show) also is set on second base plate 811, and second osculum and second sluice way 814 are interconnected, lead water to second sluice way 814 by this after, can flow out fuel cell structure 20 by second osculum again.
82 of the second porous material plates are arranged in second groove 813, and are located between the battery thin film group 30 and second base plate 811.The second non-pored wood flitch 81 and the second porous material plate 82 of second compound polar plate 80 all can be electric conducting material or non-conducting material, and the marriage relation and the function of second each element in the compound polar plate 80 are all identical with the marriage relation and the function of each element in first compound polar plate 40, therefore no longer add to give unnecessary details at this.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (19)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910130373A CN101853953A (en) | 2009-04-03 | 2009-04-03 | Fuel cell structure with composite pole plate and its composite pole plate structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910130373A CN101853953A (en) | 2009-04-03 | 2009-04-03 | Fuel cell structure with composite pole plate and its composite pole plate structure |
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| Publication Number | Publication Date |
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| CN101853953A true CN101853953A (en) | 2010-10-06 |
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| CN200910130373A Pending CN101853953A (en) | 2009-04-03 | 2009-04-03 | Fuel cell structure with composite pole plate and its composite pole plate structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017181533A1 (en) * | 2016-04-21 | 2017-10-26 | 武汉众宇动力系统科技有限公司 | Pem fuel cell stack, and flow field plate assembly for same |
| CN111244469A (en) * | 2018-11-28 | 2020-06-05 | 中国科学院大连化学物理研究所 | A bipolar plate suitable for a flow battery or a stack and its application |
-
2009
- 2009-04-03 CN CN200910130373A patent/CN101853953A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017181533A1 (en) * | 2016-04-21 | 2017-10-26 | 武汉众宇动力系统科技有限公司 | Pem fuel cell stack, and flow field plate assembly for same |
| CN111244469A (en) * | 2018-11-28 | 2020-06-05 | 中国科学院大连化学物理研究所 | A bipolar plate suitable for a flow battery or a stack and its application |
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