CN101872867A - Fuel-cell stack using metallic division plate and monocell structure and assembling method thereof - Google Patents
Fuel-cell stack using metallic division plate and monocell structure and assembling method thereof Download PDFInfo
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- CN101872867A CN101872867A CN200910137355A CN200910137355A CN101872867A CN 101872867 A CN101872867 A CN 101872867A CN 200910137355 A CN200910137355 A CN 200910137355A CN 200910137355 A CN200910137355 A CN 200910137355A CN 101872867 A CN101872867 A CN 101872867A
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- demarcation strip
- gas diffusion
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- rib
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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
Abstract
The invention discloses a fuel-cell stack using a metallic division plate, a monocell structure and an assembling method thereof. The fuel-cell stack at least comprises one monocell structure which comprises a cathode gas diffusion layer, an anode gas diffusion layer and a membrane electrode assembly, two first division plates, two second division plates and two intermediate division plates, wherein, the membrane electrode assembly is arranged between the cathode gas diffusion layer and the anode gas diffusion layer; the two first division plates are arranged at two sides outside the cathode gas diffusion layer and the anode gas diffusion layer; the first face of the first division plate comprises a plurality of grooves and ribs; the grooves form a flow path of fuel or oxygen-containing gas; the ribs can transmit force and conduct heat and current; the two second division plates are arranged at two sides outside the first division plate, are assembled with the first division plates; the first face of the second division plate comprises a plurality of grooves and ribs; the grooves form a coolant flow path; the rib transmits force and conducts heat and current; and the intermediate division plates are arranged at two sides outside the second division plates, and are assembled with the second division plates to form a coolant flow path positioned in the groove of the second division plate at two sides of the intermediate division plates.
Description
Technical field
The relevant a kind of fuel battery of the present invention refers to a kind of fuel battery of using the metal demarcation strip and single-cell structure thereof, assemble method especially.
Background technology
The energy is the motive power of human survival and economic development always, yet along with resources such as oil and natural gas constantly are consumed, people come to realise the energy that relies on originally and have one day that exhausts eventually.But before this day arrives, because problems such as use ecological disruption that the energy brought and greenhouse effect have allowed the mankind be hoisted by one's own petard, and constantly stimulated the awakening of environmental consciousness.Be subjected to the concerning human following energy and the influence of environmental issue, in recent years for the research and the application of fuel cell, attention and discussion more than obtaining more and more.Particularly for Proton Exchange Membrane Fuel Cells, the feature of its high efficiency, low pollution, peace and quiet and cold-starting makes it can be widely used on the following power of portable electric power, Portable and fixation type electricity generation system and means of transportation.
Generally speaking, according to the demand of different electricity usage situations, desired fuel battery service life also can be different.For example the non-firm power electricity generation system more do not need to consider the restriction in space during design, and emphasis is to be to satisfy long running operation, so can use the carbon plate with preferable resistance to corrosion usually, is used as the bipolar plates of fuel cell; But for power train in vehicle application, but because the restriction of usage space and to battery life requirements lower cause originally on the automobile, so fuel cell system can be with high power density main foundation during as design.Therefore with the metal optimal selection that as if demarcation strip of base material become the fuel cell that can reach high power density.Present employed metallic plate major part is based on stainless steel, if make in stamping forming mode, not only is easy to a large amount of productions, also can effectively reduce plate thickness and weight, just can significantly reduce volume of fuel cell thus and increase power density.In order to improve the resistance to corrosion of metallic plate, need take the modification processing operation to its surface, with the useful life of further prolongation fuel cell.
See also the basic structure that Figure 1 shows that Proton Exchange Membrane Fuel Cells, fuel battery 1 is made up of a plurality of monocell, wherein a mea 2 can provide electrochemical reaction, electronics and proton conduction, in these mea 2 both sides is respectively cathode gas diffusion layer 3 and anode gas diffusion layer 4, and the cognition of the reaction gas in the runner diffuses to electrode via this two gas diffusion layers, in two gas diffusion layers 3 and 4 outsides, be respectively negative electrode demarcation strip 7 and anode demarcation strip 8, this demarcation strip is provided with some runners, usefulness for reaction gas distribution, can support in the rib structure on the demarcation strip outside the assemblies such as gas diffusion layers and mea, also be the conducting path of electric current and heat energy.Between two compartment plate (7,8) and two gas diffusion layers (3,4) hermetically-sealed construction 5 and 6 are arranged, it can avoid reacting gas and cooling agent to leak in the external environment, or avoids the two generation scurrying mutually each other, causes the damage of fuel cell.Cathode collector plate 9 and anode collector plate 10 are the usefulness as collected current, have formed the circulating current path of a fuel cell with external circuit.Outermost end plate 11 and 12 have fixed battery pack, and it can apply a suitable strength to each assembly, and to suitable thickness, and another act as the supply and the divergent road of discharge of reacting gas and cooling agent on the end plate with the compression battery pack.
Above-mentioned fuel cell structure is for all can as demarcation strip with carbon plate or metallic plate.Yet normally with punch forming, it significant difference is arranged, and this also can have influence on the configuration of hermetically-sealed construction in the design in flow field for using CNC machining, hot pressing or the carbon plate of injection molding because of metallic plate.See also shown in Figure 2, generalized section for demarcation strip, carbon plate demarcation strip 13 and two kinds of metal demarcation strip 17 different structures have wherein been comprised, for carbon plate demarcation strip 13, gas flow 14 can be different flow field pattern and physical dimensions with coolant flow passages 15, then is rib 16 between runner; For metal demarcation strip 17, then be the tow sides of sheet metal to be formed gas flow 18 and coolant flow passages 19 simultaneously, and when a surface of sheet metal formed runner 18, its corresponding surface then produced rib 20 with impact style.In order to stamp out gas flow 18 and coolant flow passages 19 simultaneously, metal demarcation strip 17 is normally taked the design of similar straight-through shape runner, can't as carbon plate demarcation strip 13 can be different flow field style design gas flow 14 and coolant flow passages 15, for example: the combination of snakelike gas flow and straight-through shape coolant flow passages.Because 17 runners that can use of this metal demarcation strip with respect to carbon plate demarcation strip 13, have been subjected to more restriction, be more suitable in the possibly situation that can't use in the flow field of system end demand so also cause.
For the fuel battery of using the metal demarcation strip, because have the high power density characteristic, so using major part is based on means of transportation, so each big depot of the world is as benz (Benz), general dynamic (GM), Honda (Honda) all actively drops into the R﹠D work in this field with enterprises such as (Toyota) of Toyota, the fuel cell of metal demarcation strip for example, United States Patent (USP) numbering US 6,872 is arranged, 483B2, US7,018,733B2, US 7,195,837B2, with US 7,396,609B2 etc., be in the period of the Honda (Honda) in 2005 to 2008 propose in regular turn.And United States Patent (USP) numbering US 6,974,648B2, US7,291,414B2, with US 7,318,973B2 etc. then are general dynamics (GM) respectively at 2005,2007 and 2008 years propose.The present invention is a battery pack of emphasizing stamping forming metal demarcation strip and its formation, so for the battery pack of using carbon plate demarcation strip or non-stamping forming metal demarcation strip, the function of desiring to reach high power density with this case is inequality, and other and battery pack onrelevant person, promptly do not list in and do a discussion in the prior art.
Please refer to US 6,872, the 483B2 patent, it discloses a metal demarcation strip that is used in fuel cell, this metal demarcation strip constitutes and has the zone that groove and rib replace mutually, one elastic sheet is placed between two demarcation strips, and this elastic sheet can withstand the rib of demarcation strip, and make the groove of one of demarcation strip through elastic sheet thus with rib in the face of another demarcation strip.By this mode, fuel and oxygen-containing gas can flow in the groove of demarcation strip, and formed groove between elastic sheet and the demarcation strip, in order to the flow of coolant path to be provided.
With reference to US 7,018, the 733B2 patent discloses a compound mode with metal demarcation strip formation fuel cell module, this metal demarcation strip has comprised first demarcation strip, second demarcation strip and an intermediate section dividing plate, and wherein first demarcation strip and cathode side form the oxygen-containing gas runner; Second demarcation strip and anode-side form the fuel gas runner; Intermediate section dividing plate and first and second demarcation strip then form coolant flow passages.So cooling agent just can flow along the one side of central dividing plate, and can turn to along the another side of central dividing plate and flow, and has an adiabatic mechanism for this intermediate section dividing plate, to avoid along the one side of dividing plate and the heat exchange between the another side cooling agent.
Please refer to US 7,195, the 837B2 patent, the one metal demarcation strip with carinate rib of hollow of bending section is disclosed, utilize combining of this demarcation strip and negative electrode or anode, can be in the carinate rib of the hollow of bending section space, so that the flow path of fuel and oxygen-containing gas to be provided.In addition via being in contact with one another of the carinate rib of hollow of two demarcation strips, produce a path that ANALYSIS OF COOLANT FLOW can be provided in the space between two demarcation strips, for two demarcation strips, its bending section can have identical or different amplitude.
Please refer to US 7,396, the 609B2 patent, one sealing means that is used in the metal demarcation strip of fuel cell is disclosed, the zone of this demarcation strip beyond stamping forming groove and rib form a smooth surface, and black box covers promptly on this tabular surface, reaching the sealing of gas and cooling agent, and pilot gas and flow of coolant.
Please refer to US 6,974, the 648B2 patent discloses a metal demarcation strip that is used in fuel cell, and first demarcation strip that can provide fuel gas to flow is provided for this metal demarcation strip; Second demarcation strip with providing oxygen-containing gas to flow utilizes the nido combination of first and second demarcation strip, can form a flow of coolant path between two demarcation strips.For reaching this purpose, the rib width on first and second demarcation strip must be greater than the groove width on first and second demarcation strip.
Please refer to US 7,291, the 414B2 patent, disclose the gas of a metal demarcation strip and the method for supplying of cooling agent, this metal demarcation strip comprises a gas feed zone, but it has conducting in the negative electrode of conversion zone and the flow path of anode flow channel, this demarcation strip comprises a cooling agent feed zone, and but conducting is in the coolant flow passages of conversion zone, and for demarcation strip, it can be nido or non-nido.
Please refer to US 7,318, the 973B2 patent, the one metal demarcation strip with serpentine flow path is disclosed, the serpentine flow path of this metal demarcation strip is the mirror image symmetry, so utilize the combination of two demarcation strips, can create another serpentine flow path in space between the two, in order to form reacting gas and flow of coolant path, the two different axle assembles of striding are used for pilot fuel and oxygen-containing gas, and cooling agent, make it to enter respectively the serpentine flow path in anode reaction zone, the serpentine flow path in cathode reaction zone, and the serpentine flow path of the cooled region of being created between above-mentioned two demarcation strips.
In above-mentioned prior art, US 6,872,483B2, US 7,195,837B2 and US 6,974, the disclosed metal demarcation strip of 648B2 patent runner only limit to straight-through shape, and US 7,318, it is snakelike that the disclosed metal demarcation strip of 973B2 patent runner then only limits to mirror image.US 7,018,733B2 and US 7,291, the 414B2 patent disclosure a kind of flow field network that is applied in the metal demarcation strip, and US 7,396, the 609B2 patent then discloses a hermetically-sealed construction that is suitable for the metal demarcation strip.The difference of the present invention and those prior aries is so with regard to aforesaid metal demarcation strip, hermetically-sealed construction and assembly program etc. three partly:
1. metal demarcation strip: metal demarcation strip of the present invention wants that ben to be that the runner of demarcation strip is not limited only to straight-through or snakelike except can reaching above-mentioned function and effect, but the flow field that can more flexibly use the demand that is suitable for system end.By this flexible flow Field Design, can satisfy the features such as flow, crushing and hydro-thermal management under the different operating condition, to reach the optimum performance of battery pack.
2. hermetically-sealed construction: in order to finish between the metal demarcation strip, or the sealing between demarcation strip and other assembly, the sealing means of case before the present invention has taked one to be different from takes place with the situation of scurrying leakage mutually of effectively avoiding gas and cooling agent, and then reaches battery pack and stablize and high efficiency running.
3. assembly program: the compound mode of case formed a single-cell structure before the present invention was different from one, in this monocell, fuel gas, oxygen-containing gas and flow of coolant path have been formed, and when a plurality of monocell storehouses are battery pack, promptly produced the flow field network of fuel gas, oxygen-containing gas and cooling agent.Utilize a tip plate configurations that is fit to, utilize applying of sealed strength to compress battery pack equably, make assembly wherein, as: gas diffusion layers and mea etc., keep the decrement an of the best and reach effective seal simultaneously.
Summary of the invention
The problem that the present invention solves is, a kind of fuel battery of using the metal demarcation strip is provided, main purpose is for proposing a kind of Proton Exchange Membrane Fuel Cells group at the high power density design, in order to reach the demand of high volume and weight power density, using a metallic plate uses as demarcation strip, wherein on the surface of thin plate, there is runner to form, so that the distribution of reacting gas and cooling agent to be provided; Propose a kind of compound mode of metal demarcation strip simultaneously, it makes the flow field not only be confined to straight-through shape runner, but can different runners be applied to the flow field of reacting gas and cooling agent respectively, in the hope of the operational requirements of compliance with system end more.
The present invention is further used for solving, sealed reaction gas and cooling agent do not produce it and reveal and scurry mutually, reduce battery performance and cause danger avoiding, so propose a kind of hermetically-sealed construction of this demarcation strip of correspondence, for metal demarcation strip and hermetically-sealed construction, need a specific assembly program, could with other assembly of fuel cell, as: gas diffusion layers and mea, form a single-cell structure, and, can become a fuel battery again via the storehouse combination of a plurality of monocells.
The present invention is further used for solving, and first demarcation strip is identical with second demarcation strip, and therefore same demarcation strip can use as reacting gas and coolant flow field simultaneously.
The present invention is further used for solving, and the flow field of demarcation strip is not limited only to straight-through shape runner, but can flexibly take to be more suitable for the flow field in the system end demand, as runner such as snakelike or Z-shaped.
For achieving the above object, the present invention discloses a kind of single-cell structure that uses the fuel cell of metal demarcation strip, includes: a cathode gas diffusion layer; One anode gas diffusion layer; One mea is arranged between negative electrode, the anode gas diffusion layer; A pair of first demarcation strip, be arranged at this negative electrode, anode gas diffusion layer both sides external, have a plurality of grooves and rib on first of this first demarcation strip, wherein this groove can form the flow path of fuel or oxygen-containing gas, and this rib then can transmit strength and conduction heat and electric current; A pair of second demarcation strip, be arranged at this first demarcation strip both sides external, organize uprightly mutually, have a plurality of grooves and rib on first of this second demarcation strip with first demarcation strip, wherein this groove can form the flow of coolant path, and this rib then can transmit strength and conduction heat and electric current; And a pair of intermediate section dividing plate, be arranged at this second demarcation strip both sides external, organize uprightly mutually with second demarcation strip, can form the coolant flowpaths of the groove that is arranged in second demarcation strip in the both sides of intermediate section dividing plate.
The invention also discloses a kind of fuel battery of using the metal demarcation strip, it includes the integrated structure of storehouse combination, an anode collector plate, a cathode collector plate, an open end plate and a Closed end plate of a plurality of single-cell structures, and also includes:
The invention also discloses a kind of assemble method of monocell of the fuel cell that uses the metal demarcation strip, include: one first demarcation strip is mutually combined with a negative electrode mea sealing ring with its first, and another first demarcation strip then mutually combines with an anode mea sealing ring with its first; This first demarcation strip is contacted a cathode gas diffusion layer with the rib on its first, and this another first demarcation strip then contacts an anode gas diffusion layer with the rib on its first; One mea is placed between this cathode gas diffusion layer and the anode gas diffusion layer; This first demarcation strip is mutually combined with groove and a plurality of demarcation strip sealing ring on its second, and this another first demarcation strip mutually combines with groove and a plurality of demarcation strip sealing ring on its second; One second demarcation strip is mutually combined with groove and a plurality of demarcation strip sealing ring on its second, and another second demarcation strip mutually combines with groove and a plurality of demarcation strip sealing ring on its second; This first demarcation strip is mutually combined with its second second face with this second demarcation strip, and this another first demarcation strip then mutually combines with its second second face with this another second demarcation strip; This second demarcation strip is mutually combined with a coolant seals ring with its first, and this another second demarcation strip mutually combines with another coolant seals ring with its first; And this one second demarcation strip contacted first of an intermediate section dividing plate with the rib on its first, and this another second demarcation strip contacts first of another intermediate section dividing plate with the rib on its first.
A kind of fuel battery of metal demarcation strip of using of the present invention mainly utilizes sheet metal to use as the demarcation strip of Proton Exchange Membrane Fuel Cells, and cooperation suitable seal structure, constitute a single-cell structure with other assembly, and and then form a fuel battery, and in order to make the battery pack can be stably with high efficiency manipulation, next certain function and effect that each assembly need possess just partly are illustrated according to demarcation strip, hermetically-sealed construction and assembly program etc. three respectively:
1. demarcation strip: the major function of demarcation strip in fuel cell has multiple, and the firstth, the guiding reacting gas enters runner with cooling agent by supplying divergent road; The secondth, utilize runner to make reacting gas and refrigerant distribution in response area; The 3rd is guiding untapped reacting gas, product water and cooling agent, is entered by runner and discharges divergent road; The 4th is rib structure conduction current and the heat energy with demarcation strip.If will reach, the method applied in the present invention is as follows for above-mentioned function: the firstth, and reacting gas and cooling agent can be uniformly distributed to each monocell via suitable divergent road design; The secondth, runner must be able to make reacting gas be distributed in response area equably, to guarantee the reacting gas that enters electrode enough concentration is arranged, and also wants and can get rid of effectively for the aqueous water that electrochemical reaction produced in addition, to reach good water pipe effect.Runner also must make cooling agent can be distributed in response area equably, absorbs the used heat that the cell power generation process is generated, and avoids temperature too high and influence battery performance and cause the assembly damage even, to reach good heat management; The 3rd is that untapped reacting gas, aqueous water and cooling agent can leave battery pack via discharging divergent road, to remove low concentration reacting gas, aqueous water and used heat; The 4th is by the formed current path of rib structure, can make electronics leave the anode catalyst layer and enters the cathode catalysts layer, finishes electrochemical redox reaction.Rib structure also forms the conducting path of heat energy in addition, and the used heat that it can make in the power generation process to be generated enters in the cooling agent by transmission mechanism, to keep suitable battery operational temperatures.
2. hermetically-sealed construction: the function of hermetically-sealed construction mainly is to prevent that reacting gas and cooling agent from leaking in the environment, and avoid between the reacting gas or reacting gas and cooling agent between the situation of scurrying mutually take place.When reacting gas or cooling agent leakage, except causing battery performance decline, also can cause the safety problem that leakage produced as hydrogen fuel.If when the situation of scurrying mutually took place, the direct reaction of hydrogen and oxygen can cause the decline of battery performance slightly, seriously then be that battery component is damaged.So a good sealing structure is for the stable operation of fuel cell and useful life being The key factor very.
3. assembly program: in order to be assembled into a fuel battery, must make demarcation strip and hermetically-sealed construction and other assembly, as gas diffusion layers and mea etc., according to a specific assembly program combination in addition by a single-cell structure.Basically single-cell structure is made up of the storehouse of demarcation strip, hermetically-sealed construction, gas diffusion layers, mea, gas diffusion layers, hermetically-sealed construction and demarcation strip, if to form battery pack then must with a plurality of single-cell structures in order storehouse to required power.After assembling is finished,, need and use a suitable strength that it is compressed with the end plate clamping for the self-contained battery group.Can be in compression process center rib structure with each assembly of strength transmission guaranteeing contact each other, and hermetically-sealed construction is also reached the suitable seal effect through compression thus, takes place with the situation of avoiding inner gas, liquid to scurry leakage mutually.
Description of drawings
Fig. 1 is the basic structure of Proton Exchange Membrane Fuel Cells;
Fig. 2 is the generalized section of demarcation strip;
Fig. 3 is a single-cell structure schematic diagram of the present invention;
Fig. 4 A is the present invention's first demarcation strip three-dimensional oblique view;
Fig. 4 B is the side cutaway view of Fig. 4 A;
Fig. 5 A is the present invention's second demarcation strip three-dimensional oblique view;
Fig. 5 B is the side cutaway view of Fig. 5 A;
Fig. 6 is an intermediate section dividing plate three-dimensional oblique view of the present invention;
Fig. 7 is the combination schematic diagram of the mea sealing ring of the present invention and first demarcation strip;
Fig. 8 is the combination schematic diagram of the coolant seals ring of the present invention and second demarcation strip;
Fig. 9 A is the combination schematic diagram of the demarcation strip sealing ring of the present invention and first demarcation strip;
Fig. 9 B is the combination schematic diagram of the demarcation strip sealing ring of the present invention and second demarcation strip;
Figure 10 is each assembly perspective exploded view of single-cell structure of the present invention;
Figure 11 is the flow field network diagram of single-cell structure of the present invention;
Figure 12 is the structural representation of fuel battery of the present invention.
Wherein, Reference numeral:
1～fuel battery, 2～mea
3～cathode gas diffusion layer, 4～anode gas diffusion layer
5,6～hermetically-sealed construction, 7～negative electrode demarcation strip
8～anode demarcation strip, 9～cathode collector plate
10～anode collector plate 11,12～end plate
13～carbon plate demarcation strip 14,18～gas flow
15,19～ coolant flow passages 16,20～rib
17～metal demarcation strip, 21～electrochemical reaction zone
23a～first negative electrode demarcation strip 23b～first anode demarcation strip
24a～cathode gas diffusion layer 24b～anode gas diffusion layer
25～ mea 22a, 22b～coolant flow fields
26a, the 26b～ second demarcation strip 27a, 27b～intermediate section dividing plate
28～the first of 23～the first demarcation strips
29～the second 24～gas diffusion layers
24a～cathode gas diffusion layer 24b～anode gas diffusion layer
25～mea, 26～the second demarcation strips
37～the first 38～the second
50～the first on 27～intermediate section dividing plate
51～the second 34a～reaction gas flow path
30a, 30b, 31a, 31b, 32a, 32b, 33a, 33b～divergent road
34c～ groove 34b, 35a, 35b, 35c, 35d～rib
36c, 36b, 36a, 36d～screw hole 43a～coolant flowpaths
39a, 39b, 40a, 40b, 41a, 41b, 42a, 42b～divergent road
43b, 44a, 44b, 44c, 44d～rib 43c～groove
45a, 45b, 45c, 45d～ screw hole 52a, 52b, 52c, 52d～screw hole
46a, 46b, 47a, 47b, 48a, 48b, 49a, 49b～divergent road
53～mea sealing ring, 54～coolant seals ring
55,55a, 55b, 55c, 55d, 56,56a, 56b, 56c, 56d～demarcation strip sealing ring
57～battery pack 58～opening end plate
59～Closed end plate, 60～single-cell structure
61a～cathode collector plate 61b～anode collector plate
62a, 62b, 62c, 62d, 63a, 63b, 63c, 63d～screw hole
The passing away of the service duct 64b～oxygen-containing gas of 64a～oxygen-containing gas
The passing away of the service duct 65b～fuel gas of 65a～fuel gas
The service duct 66b of 66a, 67a～cooling agent, the passing away of 67b～cooling agent
Embodiment
Below cooperate following description of drawings detailed structure of the present invention, and connection relationship, be beneficial to expensive careful committee and do a understanding.
In order to satisfy function and the effect of declaring as summary of the invention, the present invention proposes one and uses the metal demarcation strip to form the method for single-cell structure, sets up the flow field network of reacting gas and cooling agent, to reach the management of effective electrochemical reaction and hydro-thermal.See also shown in Figure 3ly, be single-cell structure schematic diagram of the present invention.Electrochemical reaction zone 21 has comprised the first negative electrode demarcation strip 23a, first anode demarcation strip 23b, cathode gas diffusion layer 24a, anode gas diffusion layer 24b and mea 25.On the first demarcation strip 23a and 23b, stamping forming rib is arranged, contact with the tight of rib of this metal demarcation strip by gas diffusion layers, and the suitably cooperation of hermetically-sealed construction, stamping forming trench region promptly becomes the oxygen-containing gas that cathode side can be provided respectively and flows, with the mobile runner of the fuel gas of anode-side.Coolant flow fields 22a and 22b are respectively by second demarcation strip 26a and the 26b, and intermediate section dividing plate 27a and 27b form.Stamping forming rib is then arranged on second demarcation strip, and the intermediate section dividing plate is one to have the sheet metal of flat surfaces, rib by second demarcation strip contacts with the tight of tabular surface of intermediate section dividing plate, and the suitably cooperation of hermetically-sealed construction, stamping forming trench region promptly becomes the runner that ANALYSIS OF COOLANT FLOW can be provided.
For the first demarcation strip 23a, 23b and second demarcation strip 26a and the 26b, it is all identical, but when being used in zones of different, need reverse its plane and of first demarcation strip with respect to the central shaft half-twist on vertical this plane, could become the cooling demarcation strip by the gas partitions plate, or second need reverse its plane and with respect to the central shaft half-twist on vertical this plane of demarcation strip, could become the gas partitions plate by the cooling demarcation strip.By this mode, except can be with a metal demarcation strip simultaneously as gas partitions plate and the cooling demarcation strip, stamping forming runner also be not limited only to straight-through shape, but can use more various and be suitable for the flow field of system end demand.As mentioned above, for can be to use simultaneously as gas and cooling demarcation strip with a slice metal demarcation strip, between this metal demarcation strip and aforesaid sheet metal and other assembly, needing can become a single-cell structure with a specific assembly program, and and then forms a battery pack.
In the present invention, the concrete technological means of reaching basic purpose can be divided into three themes and be illustrated, and it is respectively metal demarcation strip, hermetically-sealed construction and assembly program, next promptly employed technological means is described in detail:
The metal demarcation strip:
Metal demarcation strip among the present invention has comprised first demarcation strip, second demarcation strip and intermediate section dividing plate, respectively shown in Fig. 4 A to 6.Wherein first demarcation strip and second demarcation strip are same demarcation strip, on its surface stamping forming rib and groove are arranged, and the intermediate section dividing plate is one to have the sheet metal of flat surfaces.Respectively first demarcation strip, second demarcation strip and intermediate section dividing plate are described in detail its feature with that.
1. first demarcation strip:
Fig. 4 A and 4B are respectively first demarcation strip and its cross-section illustration.First demarcation strip 23 have first 28 with in contrast to first second 29.When first 28 faces cathode electrode, first demarcation strip 23 promptly becomes the negative electrode demarcation strip that can distribute oxygen-containing gas, and when facing anode electrode for first 28, first demarcation strip 23 promptly becomes the anode demarcation strip that can distribute fuel gas.Fork road 30a, 30b, 31a and 31b have all run through first demarcation strip 23, and when first demarcation strip 23 is the negative electrode demarcation strip, fork road 30a and 30b are respectively the supplies and the divergent road of discharge of oxygen-containing gas, and divergent road 31a and 31b then are respectively the supplies and the divergent road of discharge of fuel gas.But when first demarcation strip 23 was the anode demarcation strip, divergent road 30a and 30b were respectively the supplies and the divergent road of discharge of fuel gas, and divergent road 31a and 31b then are respectively the supplies and the divergent road of discharge of oxygen-containing gas.
Similarly, divergent road 32a, 32b, 33a and 33b have all run through first demarcation strip 23, and wherein 32a and 33a are the supply fork road of cooling agent, and 32b and 33b then are the discharge fork roads of cooling agent.Reaction gas flow path 34a is made up of stamping forming rib 34b that replaces mutually and groove 34c, and its center rib 34b and groove 34c all are positioned on first 28 of first demarcation strip 23.This rib 34b outside making it suitably to be compressed, has also formed the conducting path of heat with electricity except transmitting strength other assembly to battery pack.This groove 34c then becomes the fuel gas runner of anode demarcation strip, or the oxygen-containing gas runner of negative electrode demarcation strip.Though in present embodiment, reactant gas flow field is a Z-shaped runner, straight-through and snakelikely wait runner also can be applied to the present invention and unrestricted, this also be the present invention the flexible flow Field Design of ben compliance with system end demand.Rib 35a, 35b, 35c and 35d are formed on first 28 of first demarcation strip 23, produce and on second 29, have corresponding groove, when the suitable hermetically-sealed construction in this groove can make first demarcation strip and second demarcation strip mutually combine, reach an effective seal.
For divergent road 30a and the 31b in first demarcation strip 23, and divergent road 31a and 30b, it is the mirror image symmetry each other, and for divergent road 32a and 33b, and divergent road 33a and 32b, and it is mirror image symmetry each other also.According to this mirror image symmetric mode, when being inverted to originally second 's 29 position for first 28, fork road 30a, 30b, 31a and 31b, can be corresponding mutually with 30b with original divergent road 31a, 31b, 30a, and divergent road 32a, 32b, 33a and 33b, then can be corresponding mutually with 32b with original divergent road 33a, 33b, 32a.For divergent road 30a, 30b, 31a and 31b, and divergent road 32a, 32b, 33a and 33b, then axially symmetrical each other, just with after the half-twist clockwise, divergent road 30a, 31a, 31b can be corresponding mutually with 33b with original divergent road 32b, 33a, 32a with 31b with respect to vertical first 28 central shaft for first demarcation strip 23.
2. second demarcation strip:
Fig. 5 A and 5B are respectively second demarcation strip and its cross-section illustration.Second demarcation strip 26 and first demarcation strip 23 are same demarcation strip, and both difference is to need with first demarcation strip 23 with respect to vertical its central shaft of first 28 can to form second demarcation strip 26 with after the half-twist clockwise.Second demarcation strip 26 have first 37 with in contrast to first second 38.Because aforesaid mirror image symmetry and the axially design of symmetry, when second demarcation strip 26 with its second 38, when being combined into an equivalent bipolar plates with second 29 of first demarcation strip 23, divergent road 39a, 39b, 40a, 40b, 41a, 41b, 42a and the 42b of second demarcation strip 26 can correspond to divergent road 31a, 31b, 30a, 30b, 33a, 33b, 32a, the 32b of first demarcation strip 23 respectively.
3. intermediate section dividing plate:
Fig. 6 is intermediate section dividing plate diagram, and it is one to have the sheet metal of flat surfaces.Intermediate section dividing plate 27 is to place between two second demarcation strips 26, rib 34b by second demarcation strip 26 contacts with the tight of tabular surface of intermediate section dividing plate 27, in the both sides of intermediate section dividing plate 27, can form the coolant flowpaths of the groove 34c that is arranged in second demarcation strip 26.The divergent road 46a～49b of intermediate section dividing plate 27 and the divergent road 39a～42b of second demarcation strip can produce different correspondences according to different combinations.
For intermediate section dividing plate 27, its have first 50 with in contrast to first second 51.When middle demarcation strip 27 during with first 50 in the face of second demarcation strip 26 first 37, divergent road 46a, 46b, 47a, 47b, 48a, 48b, 49a and 49b can correspond to divergent road 40a, 40b, 39a, 39b, 42a, 42b, 41a and the 41b of second demarcation strip 26 respectively.And when middle demarcation strip 27 during with second 51 in the face of second demarcation strip 26 first 37, divergent road 46a, 46b, 47a, 47b, 48a, 48b, 49a and 49b can correspond to divergent road 39a, 39b, 40a, 40b, 41a, 41b, 42a and the 42b of second demarcation strip 26 respectively.
For the corresponded manner of screw hole also similar in appearance to divergent road.When middle demarcation strip 27 during with first 50 in the face of second demarcation strip 26 first 37, screw hole 52a, 52b, 52c and the 52d of intermediate section dividing plate 27 can correspond to screw hole 45c, 45b, 45a and the 45d of second demarcation strip respectively, and when middle demarcation strip 27 during with second 51 in the face of second demarcation strip 26 first 37, screw hole 52a, 52b, 52c and the 52d of intermediate section dividing plate 27 can correspond to screw hole 45a, 45b, 45c and the 45d of second demarcation strip respectively.
Hermetically-sealed construction:
Hermetically-sealed construction among the present invention has comprised mea sealing ring, coolant seals ring and demarcation strip sealing ring, respectively shown in following Fig. 7 to 9.These sealing rings are except preventing between the reacting gas or scurrying mutually and leaking the generation between reacting gas and the cooling agent, mea sealing ring pilot fuel and oxygen-containing gas respectively enters the electrode reaction zone, the coolant seals ring then can be guided cooling agent and be entered coolant flow fields, and the demarcation strip sealing ring is first demarcation strip 23 and second demarcation strip 26 when being combined into an equivalent bipolar plates required hermetically-sealed construction.Respectively mea sealing ring, coolant seals ring and demarcation strip sealing ring are described in detail its feature with that.
1. mea sealing ring:
Fig. 7 is the combination icon of the mea sealing ring and first demarcation strip.Mea sealing ring 53 is with gluing or direct mode such as ejection formation on metallic plate, mutually combines with first 28 of first demarcation strip 23.This mea sealing ring 53 is a compressible material, and as silica gel, it has suitable height to cooperate the thickness of gas diffusion layers and mea.The hermetically-sealed construction that mea sealing ring 53 is formed in one, it has surrounded divergent road 31a, 31b, 32a, 32b, 33a and 33b, then is only open towards the direction of reaction gas flow path 34a at divergent road 30a and 30b.By the combination of the mea sealing ring 53 and first demarcation strip 23, but its clamping gas diffusion layers and mea, and then form a cathode side and an anode-side.Via exerting pressure mutually of the mea sealing ring of a negative electrode and an anode, can avoid between the reacting gas or scurrying mutually between reacting gas and the cooling agent leak to be taken place, can guide simultaneously reacting gas and enter reactant gas flow zone 34a by divergent road 30a, then enter divergent road 30b and leave battery pack then, shown in the direction of arrow.
2. coolant seals ring:
Fig. 8 is the combination icon of the coolant seals ring and second demarcation strip.Similarly, coolant seals ring 54 is with gluing or direct mode such as ejection formation on metallic plate, mutually combines with first 37 of second demarcation strip 26.This coolant seals ring 54 is a compressible material, and as silica gel, it has the height of suitable height with the rib 43b of cooperation coolant flowpaths 43a.The hermetically-sealed construction that coolant seals ring 54 is formed in one, it has surrounded divergent road 39a, 39b, 40a, 40b, 42a and 42b, then is only open towards the direction of coolant flowpaths 43a at divergent road 41a and 41b.By the combination of the cooling agent group sealing ring 54 and second demarcation strip 26, but its clamping intermediate section dividing plate 27, and then in its formation flow of coolant path, both sides.Via exerting pressure mutually of the coolant seals ring 54 of the both sides of intermediate section dividing plate 27, can avoid between the reacting gas or scurrying mutually between reacting gas and the cooling agent leak to be taken place, simultaneously can guide cooling agent and enter coolant flow fields 43a by divergent road 41a, then enter divergent road 41b and leave battery pack then, shown in the direction of arrow.
3. demarcation strip sealing ring:
Fig. 9 A and 9B are respectively the demarcation strip sealing ring and first demarcation strip, and the combination icon of the demarcation strip sealing ring and second demarcation strip.In first demarcation strip 23, demarcation strip sealing ring 55a～55d places second 29 groove of first demarcation strip 23 with gluing or direct mode such as ejection formation on metallic plate.This groove is aforesaid being formed at as rib 35a, 35b, 35c and 35d on first 28 of first demarcation strip, and corresponding groove generation can be arranged on second 29.Similarly, in second demarcation strip 26, demarcation strip sealing ring 56a～56d places second 38 groove of second demarcation strip 26 with gluing or direct mode such as ejection formation on metallic plate.This groove is aforesaid being formed at as rib 44a, 44b, 44c and 44d on first 37 of second demarcation strip, and corresponding groove generation can be arranged on second 38.Demarcation strip sealing ring 55a～55d and 56a～56d are same hermetically-sealed constructions, and it is a compressible material, as silica gel, and have suitable height to cooperate the degree of depth of above-mentioned groove.
Because aforesaid mirror image symmetry and the axially design of symmetry, when first demarcation strip 23 with its second 29, when being combined into an equivalent bipolar plates with second 38 of second demarcation strip 26, demarcation strip sealing ring 55a～55d has promptly surrounded divergent road 32a, 32b, 33a and the 33b of first demarcation strip 23, and divergent road 42a, 42b, 41a and the 41b of second demarcation strip 26.Demarcation strip sealing ring 56a～56d has then surrounded divergent road 39a, 39b, 40a and the 40b of second demarcation strip 26, and divergent road 31a, 31b, 30a and the 30b of first demarcation strip 23.Via exerting pressure mutually of first demarcation strip 23 and second demarcation strip 26, compressed demarcation strip sealing ring 55a～55d and 56a～56d can avoid between the reacting gas or scurrying mutually between reacting gas and the cooling agent leaked generation.
Assembly program:
Figure 10 is each assembly icon of single-cell structure.At first with regard to the half-cell module of cathode side, a pair of first demarcation strip 23 mutually combines with mea sealing ring 53 with its first 28, and also with the contact of the rib on its first 28 cathode gas diffusion layer 24, and then cathode and anode gas diffusion layers 24 then is mea 25.Then, a pair of first demarcation strip 23 mutually combines with its second 29 with corresponding a pair of second demarcation strip 26 second 38, and demarcation strip sealing ring 55～56 then is in the groove that places between first demarcation strip 23 and second demarcation strip 26.At last, second demarcation strip 26 mutually combines with coolant seals ring 54 with its first 37, and also contacts first 50 of a pair of intermediate section dividing plate 27 with the rib on its first 37.Above-mentioned number of assembling steps forms the half-cell module of a cathode side, and also is to use identical mode to form for the half-cell module of anode-side.By the combination of the half-cell module of a negative electrode and an anode-side, can finish a single-cell structure.
Figure 11 is the flow field network icon of single-cell structure.For oxygen-containing gas, it is to supply divergent road via the oxygen-containing gas of intermediate section dividing plate 27, second demarcation strip 26 and first demarcation strip 23, is led to the oxygen-containing gas runner of first demarcation strip 23.Then by flooding mechanism, the oxygen-containing gas in the runner enters electrode reaction zone 24～25 and produces the reduction reaction of cathode side.Last untapped oxygen-containing gas and product water enter oxygen-containing gas by runner and discharge divergent road, and leave battery pack.For fuel gas, it is to supply divergent road via the fuel gas of intermediate section dividing plate 27, second demarcation strip 26 and first demarcation strip 23, is led to the fuel gas runner of first demarcation strip 23.Then by flooding mechanism, the fuel gas in the runner enters electrode reaction zone 24～25 and produces the oxidation reaction of anode-side.Last untapped fuel gas enters fuel gas by runner and discharges divergent road, and leaves battery pack.For cooling agent, it is to supply divergent road via the cooling agent of the intermediate section dividing plate 27 and second demarcation strip 26, is led to the coolant flow passages between second demarcation strip 26 and the intermediate section dividing plate 27.Cooling agent has absorbed the used heat that is produced in the battery pack power generation process, and the cooling agent that end temperature rises enters cooling agent by runner and discharges divergent road, and leaves battery pack.
Figure 12 is the diagram of fuel battery, in order to form battery pack 57, need to open end plate 58 and a plurality of above single-cell structures 60 of Closed end plate 59 clampings, and cathode collector plate 61a and anode collector plate 61b, then place between two end plates and a plurality of above single-cell structure, and constitute current paths with the external circuit.Screw hole 62a～62d has run through open end plate 58 and Closed end plate 59, and the screw hole position of corresponding aforementioned demarcation strip.Screw hole 63a～63d has also run through open end plate 58 and Closed end plate 59 in addition, and itself and screw hole 62a～62d all have screw rod to run through wherein.Open in addition end plate 58 needs to be insulation, can to enter in the collector plate to guarantee electric current electricity with the surface of Closed end plate 59.So end plate can be made by an insulating material with appropriate configuration intensity, or with metal material as the end plate body, again appropriate insulation is made on its surface and is handled.
By the process of a compression battery pack 57, open end plate 58 can be passed to strength a plurality of above single-cell structures 60 equably with Closed end plate 59.And between each assembly, the rib structure of demarcation strip can be with above-mentioned strength transmission to gas diffusion layers and mea, make it to produce suitable compression to guarantee contact each other, the strength transmission via rib structure also can make formation contact closely between the demarcation strip certainly.Hermetically-sealed construction also is to produce a suitable compression through compression process thus in addition, and then the sealing of reaching effective reacting gas and cooling agent, takes place with the situation of avoiding scurrying leakage mutually.After battery pack 57 was compressed into the height an of the best, the screw rod among screw hole 62a～62d and the 63a～63d can closely be fixed on the end plate by a sealed mechanism at last, had so promptly finished the sealed of battery pack with fixing.
For reacting gas and cooling agent being imported the supply fork road in the demarcation strip, and reacting gas and cooling agent are derived by the fork of the discharge in demarcation strip road, the service duct 65a and the passing away 65b that on open end plate 58, have the service duct 64a of oxygen-containing gas and passing away 64b, fuel gas, and the service duct 66a of cooling agent and 67a and passing away 66b and 67b.These passages can form the complete flow field network of oxygen-containing gas, fuel gas and cooling agent with aforementioned divergent road respectively, supplying enough reacting gass and cooling agent, and get rid of untapped gas and product water, and remove the used heat that battery pack produces.With fixing, and the combining of above-mentioned passage 64a～67b and opening end plate 58 promptly finished the assembly program of battery pack via the sealed of aforesaid battery pack.
In sum, architectural feature of the present invention and each embodiment disclose all in detail, and can fully demonstrate the present invention's all dark well-off creativeness of executing on purpose and effect, the value that has industry, and be utilization not seen before on the market at present, spiritual described according to Patent Law, case of the present invention meets the important document of patent of invention fully.
The above only is preferred embodiment of the present invention, when can not with the scope implemented of qualification the present invention, promptly the equalization of doing according to claim of the present invention generally changes and revises, and all should still belong in the scope that patent of the present invention contains.
Claims (19)
1. a single-cell structure that uses the fuel cell of metal demarcation strip is characterized in that, includes:
One cathode gas diffusion layer;
One anode gas diffusion layer;
One mea is arranged between negative electrode, the anode gas diffusion layer;
A pair of first demarcation strip, be arranged at this negative electrode, anode gas diffusion layer both sides external, have a plurality of grooves and rib on first of this first demarcation strip, wherein this groove forms the flow path of fuel or oxygen-containing gas, and this rib then can transmit strength and conduction heat and electric current;
A pair of second demarcation strip, be arranged at this first demarcation strip both sides external, organize uprightly mutually, have a plurality of grooves and rib on first of this second demarcation strip with first demarcation strip, wherein this groove forms the flow of coolant path, and this rib then can transmit strength and conduction heat and electric current; And
A pair of intermediate section dividing plate is arranged at this second demarcation strip both sides external, organizes uprightly mutually with second demarcation strip, forms the coolant flowpaths of the groove that is arranged in second demarcation strip in the both sides of intermediate section dividing plate.
2. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1 is characterized in that, this first demarcation strip is constituted by a stamping forming metallic plate.
3. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1, it is characterized in that, this first demarcation strip has the reacting gas supply and the divergent road of discharge of mirror image symmetry, with the cooling agent supply and the divergent road of discharge of mirror image symmetry, then be axially symmetrical between reacting gas and the cooling agent fork road.
4. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1 is characterized in that, the flow field of this formed fuel of first demarcation strip groove or oxygen-containing gas is straight-through, rule or erratic crooked arc or runner such as Z-shaped.
5. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1, it is characterized in that, this first demarcation strip has the rib structure that surrounds cooling agent fork road on first, and on second, have with the corresponding groove of this rib to form, and a hermetically-sealed construction is put in the space that this groove forms.
6. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1 is characterized in that, this first demarcation strip is provided with some mirror images and axially symmetrical screw hole.
7. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1, it is characterized in that, this second demarcation strip and first demarcation strip are same structure, and second demarcation strip is to form after rotating 90 degree clockwise by first the central shaft of first demarcation strip with respect to vertical first demarcation strip.
8. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1, it is characterized in that, this intermediate section dividing plate is constituted by a stamping forming metallic plate, and it has and corresponding reacting gas of first demarcation strip and cooling agent fork road, and is provided with a plurality of screw holes.
9. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 1 is characterized in that, the single-cell structure of this fuel cell also includes: one places the anode mea sealing ring of first demarcation strip; One places the negative electrode mea sealing ring of first demarcation strip; One places the coolant seals ring between second demarcation strip and the intermediate section dividing plate; And a plurality of demarcation strip sealing rings that place between first demarcation strip and second demarcation strip.
10. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 9, it is characterized in that, this mea sealing ring is with gluing or the direct mode of ejection formation on metallic plate, mutually combine with first face of first demarcation strip, it is for compressible material and have suitable height to cooperate the thickness of gas diffusion layers and mea.
11. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 9, it is characterized in that, the hermetically-sealed construction that this mea sealing ring is formed in one, it is only open towards the direction of reaction gas flow path, and surrounds other all divergent road.
12. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 9, it is characterized in that, this coolant seals ring is with gluing or the direct mode of ejection formation on metallic plate, mutually combine with first face of second demarcation strip, it is for compressible material and have the rib heights of suitable height with the coolant flow fields that cooperates second demarcation strip.
13. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 9 is characterized in that, the hermetically-sealed construction that this coolant seals ring is formed in one, and it is only open towards the direction of coolant flowpaths, and surrounds other all divergent road.
14. the single-cell structure of the fuel cell of use metal demarcation strip as claimed in claim 9, it is characterized in that, this demarcation strip sealing ring is with gluing or the direct mode of ejection formation on metallic plate, with second of first demarcation strip or second face of second demarcation strip mutually combines, it is arranged in the groove of first demarcation strip or second demarcation strip, and it is compressible material and has suitable height to cooperate this gash depth in addition.
15. a fuel battery of using the metal demarcation strip, it includes the integrated structure of storehouse combination, an anode collector plate, a cathode collector plate, an open end plate and a Closed end plate of a plurality of single-cell structures, and also includes:
Described single-cell structure comprises a cathode gas diffusion layer; One anode gas diffusion layer; One places the mea between two gas diffusion layers; With a pair of first demarcation strip that is arranged at the gas diffusion layers outside; And a pair of second demarcation strip and a pair of intermediate section dividing plate that form coolant flow fields, and also comprising one places the anode mea sealing ring, of first demarcation strip to place the negative electrode mea sealing ring, of first demarcation strip to place coolant seals ring between second demarcation strip and the intermediate section dividing plate and a plurality of demarcation strip sealing ring that places between this first demarcation strip and this second demarcation strip;
Described this positive and negative utmost point collector plate is to be arranged between described a plurality of single-cell structure and the end plate; And
Described this opening, Closed end plate are the outsides that is arranged at described a plurality of single-cell structure and collector plate.
16. the fuel battery of use metal demarcation strip as claimed in claim 15 is characterized in that, this opening end plate and Closed end plate have a plurality of screw holes, and corresponding with this demarcation strip screw hole.
17. the fuel battery of use metal demarcation strip as claimed in claim 15 is characterized in that, the surface of this open end plate and Closed end plate is insulation to electricity.
18. the fuel battery of use metal demarcation strip as claimed in claim 15 is characterized in that, this opening end plate has fuel and oxygen-containing gas, and the supply of cooling agent and passing away.
19. the assemble method of the monocell of a fuel cell that uses the metal demarcation strip is characterized in that, includes:
One first demarcation strip is mutually combined with a negative electrode mea sealing ring with its first, and another first demarcation strip then mutually combines with an anode mea sealing ring with its first;
This first demarcation strip is contacted a cathode gas diffusion layer with the rib on its first, and this another first demarcation strip then contacts an anode gas diffusion layer with the rib on its first;
One mea is placed between this cathode gas diffusion layer and the anode gas diffusion layer;
This first demarcation strip is mutually combined with groove and a plurality of demarcation strip sealing ring on its second, and this another first demarcation strip mutually combines with groove and a plurality of demarcation strip sealing ring on its second;
One second demarcation strip is mutually combined with groove and a plurality of demarcation strip sealing ring on its second, and another second demarcation strip mutually combines with groove and a plurality of demarcation strip sealing ring on its second;
This first demarcation strip is mutually combined with its second second face with this second demarcation strip, and this another first demarcation strip then mutually combines with its second second face with this another second demarcation strip;
This second demarcation strip is mutually combined with a coolant seals ring with its first, and this another second demarcation strip mutually combines with another coolant seals ring with its first; And
This one second demarcation strip is contacted first of an intermediate section dividing plate with the rib on its first, and this another second demarcation strip contacts first of another intermediate section dividing plate with the rib on its first.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910137355A CN101872867A (en) | 2009-04-24 | 2009-04-24 | Fuel-cell stack using metallic division plate and monocell structure and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910137355A CN101872867A (en) | 2009-04-24 | 2009-04-24 | Fuel-cell stack using metallic division plate and monocell structure and assembling method thereof |
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|---|---|
| CN101872867A true CN101872867A (en) | 2010-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910137355A Pending CN101872867A (en) | 2009-04-24 | 2009-04-24 | Fuel-cell stack using metallic division plate and monocell structure and assembling method thereof |
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| CN (1) | CN101872867A (en) |
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| CN102122722A (en) * | 2011-01-21 | 2011-07-13 | 中国科学院宁波材料技术与工程研究所 | Solid oxide fuel cell stack |
| CN102544544A (en) * | 2010-12-31 | 2012-07-04 | 财团法人工业技术研究院 | Fluid flow plate assemblies for fuel cells |
| CN104091956A (en) * | 2014-07-21 | 2014-10-08 | 江苏超洁绿色能源科技有限公司 | Regional and high-power air cooling type proton exchange membrane fuel cell (PEMFC) electric pile bipolar plate with counter-flow channel |
| CN105264706A (en) * | 2012-10-19 | 2016-01-20 | 奥迪股份公司 | Low cost fuel cell components |
| CN107851827A (en) * | 2015-08-07 | 2018-03-27 | 米其林集团总公司 | For the stacking for the bipolar plates for manufacturing fuel cell |
| CN109509891A (en) * | 2018-12-05 | 2019-03-22 | 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 |
| CN109509892A (en) * | 2018-12-05 | 2019-03-22 | 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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| CN102544544A (en) * | 2010-12-31 | 2012-07-04 | 财团法人工业技术研究院 | Fluid flow plate assemblies for fuel cells |
| CN102544544B (en) * | 2010-12-31 | 2014-06-11 | 财团法人工业技术研究院 | Fluid flow plate assemblies for fuel cells |
| US9391332B2 (en) | 2010-12-31 | 2016-07-12 | Industrial Technology Research Institute | Fluid flow plate assemblies for use in fuel cells having flow channels with substantially same length |
| CN102122722A (en) * | 2011-01-21 | 2011-07-13 | 中国科学院宁波材料技术与工程研究所 | Solid oxide fuel cell stack |
| US10651484B2 (en) | 2012-10-19 | 2020-05-12 | Audi Ag | Extruded carbon fuel cell components |
| CN105264706A (en) * | 2012-10-19 | 2016-01-20 | 奥迪股份公司 | Low cost fuel cell components |
| CN104091956A (en) * | 2014-07-21 | 2014-10-08 | 江苏超洁绿色能源科技有限公司 | Regional and high-power air cooling type proton exchange membrane fuel cell (PEMFC) electric pile bipolar plate with counter-flow channel |
| CN107851827A (en) * | 2015-08-07 | 2018-03-27 | 米其林集团总公司 | For the stacking for the bipolar plates for manufacturing fuel cell |
| CN107851827B (en) * | 2015-08-07 | 2021-05-28 | 米其林集团总公司 | Stack of bipolar plates for manufacturing fuel cells |
| CN110391369A (en) * | 2018-04-17 | 2019-10-29 | 大众汽车有限公司 | Can electrically driven motor vehicle assembling assembly |
| CN110391369B (en) * | 2018-04-17 | 2022-06-17 | 大众汽车有限公司 | Assembly of an electrically drivable motor vehicle |
| CN109509892A (en) * | 2018-12-05 | 2019-03-22 | 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 |
| CN109509891A (en) * | 2018-12-05 | 2019-03-22 | 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 |
| CN109509892B (en) * | 2018-12-05 | 2024-02-23 | 国家电投集团氢能科技发展有限公司 | Fuel cell separator, unit fuel cell, and fuel cell stack |
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Application publication date: 20101027 |