WO2013175669A1 - 燃料電池スタック - Google Patents
燃料電池スタック Download PDFInfo
- Publication number
- WO2013175669A1 WO2013175669A1 PCT/JP2012/083628 JP2012083628W WO2013175669A1 WO 2013175669 A1 WO2013175669 A1 WO 2013175669A1 JP 2012083628 W JP2012083628 W JP 2012083628W WO 2013175669 A1 WO2013175669 A1 WO 2013175669A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- displacement absorbing
- cooling fluid
- projection
- fuel cell
- displacement
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 claims abstract description 248
- 239000012809 cooling fluid Substances 0.000 claims abstract description 123
- 239000000446 fuel Substances 0.000 claims abstract description 40
- 238000005452 bending Methods 0.000 claims abstract description 21
- 239000012528 membrane Substances 0.000 claims description 14
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000012530 fluid Substances 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 22
- 238000010521 absorption reaction Methods 0.000 description 19
- 239000000758 substrate Substances 0.000 description 10
- 238000001816 cooling Methods 0.000 description 8
- 230000001154 acute effect Effects 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001257 hydrogen Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 238000010248 power generation Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000005518 polymer electrolyte Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
- H01M8/248—Means for compression of the fuel cell stacks
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/2483—Details of groupings of fuel cells characterised by internal manifolds
-
- 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
Definitions
- the present invention relates to a fuel cell stack formed by stacking cell units.
- Patent Document 1 As this type of cell unit, there is one described in Patent Document 1 as a single fuel cell.
- the fuel cell single cell described in Patent Document 1 is disposed on one surface of a membrane electrode assembly in which a fuel gas flow path and an oxidant gas flow path having an uneven shape are formed in a region contributing to power generation, and the membrane electrode assembly.
- a first separator having a flat surface on at least the side to be disposed
- a second separator disposed on the other surface of the membrane electrode assembly and having a flat surface on at least the side to be disposed.
- the fuel cell unit cell is provided with either the first separator or the second separator and has a corrugated cooling plate formed with a refrigerant flow path (cooling fluid flow path) through which the refrigerant flows. And a third separator disposed on the cooling plate.
- the present invention has been made in view of the above-described conventional situation, and a fuel cell stack capable of preventing a bending moment from being generated in a cell unit even when a displacement absorbing member is disposed in a cooling fluid flow passage.
- the purpose is to provide.
- a plurality of cell units each having a membrane electrode assembly disposed between two separators are stacked, and a cooling fluid flow passage is formed for circulating a cooling fluid between adjacent cell units. It has the structure.
- a displacement absorbing member having a plurality of displacement absorbing protrusions that absorb displacement in the stacking direction of the cell units is provided in the cooling fluid flow passage, and the displacement absorbing protrusions of the displacement absorbing member are generated in the cell unit.
- the configuration is arranged so as to cancel the bending moment, and the above configuration is a means for solving the conventional problems.
- the fuel cell stack of the present invention it is possible to prevent a bending moment from being generated in the cell unit even when the displacement absorbing member is disposed in the cooling fluid flow path.
- FIG. 1 is an external perspective view of a fuel cell stack according to an embodiment of the present invention. It is a disassembled perspective view which decomposes
- FIG. 4 is a partially enlarged cross-sectional view taken along the line II, with a plurality of cell units shown in FIG. 3 being stacked. It is a perspective view of the displacement absorption member each arrange
- FIG. 6 is a partial cross-sectional view (A) of the three cell units provided with the displacement absorbing member shown in FIG.
- the top view (A) of the displacement absorbing member according to the second embodiment arranged in the cooling fluid flow path on the anode separator side of the cell unit, and another example arranged in the cooling fluid flow path on the cathode separator side of the cell unit It is a top view (B) of a displacement absorption member.
- the top view (A) of the displacement absorbing member according to the fourth embodiment arranged in the cooling fluid flow path on the anode separator side of the cell unit, and the fourth other arranged in the cooling fluid flow path on the cathode separator side of the cell unit It is a top view (B) of the displacement absorption member which concerns on an example. It is the top view (A) of the displacement absorption member which concerns on 5th embodiment, and the partial enlarged view (B). It is a partial expanded sectional view which shows the state which has arrange
- FIG. 4B is a perspective view (B) of a displacement absorbing member disposed in a cooling fluid flow path that is partitioned between an anode separator of another cell unit adjacent to the one cell unit. It is a perspective view for demonstrating the load which acts on the displacement absorption member each arrange
- FIG. 1 is an external perspective view of a fuel cell stack according to an embodiment of the present invention
- FIG. 2 is an exploded perspective view showing the fuel cell stack in an exploded manner
- FIG. 3 is a plan view of the cell units constituting the fuel cell stack
- FIG. 4 is a partially enlarged sectional view taken along the line II in a state where a plurality of the cell units shown in FIG. 3 are stacked. is there.
- the fuel cell stack 10 is of, for example, a solid polymer electrolyte type mounted on a vehicle.
- a fuel cell stack 10 shown in FIGS. 1 and 2 includes a plurality of current collector plates 13 and 14 and a plurality of cell units A1 that are stacked between a pair of end plates 11 and 12, and a plurality of end plates 11 and 12 that are
- the cell unit A1 has a case-integrated structure that is restrained by the fastening plates 15 and 16 and the reinforcing plates 17 and 17 so as to sandwich the cell units A1.
- the reference numeral 18 indicates a bolt
- the reference numeral 19 indicates a spacer.
- the cell unit A1 has anode and cathode separators 40, 41 so as to form gas flow passages S1, S2 (see FIG. 4) for flowing different power generation gases on both sides of the membrane electrode assembly 30, respectively.
- the power generation gas is a hydrogen-containing gas and an oxygen-containing gas.
- the membrane electrode assembly 30 is called MEA (Membrane Electrode Assembly), and has, for example, a structure in which an electrolyte membrane made of a solid polymer is sandwiched between an anode electrode and a cathode electrode (both not shown), It arrange
- MEA Membrane Electrode Assembly
- the membrane electrode assembly 30 supplies a hydrogen-containing gas flowing through the gas flow passage S1 shown in FIG. 4 to the anode electrode and supplies an oxygen-containing gas flowing through the gas flow passage S2 shown in FIG. 4 to the cathode electrode. To generate electricity.
- manifold portions H for supplying and discharging hydrogen-containing gas or oxygen-containing gas are formed on both sides of the cell unit A1.
- One side manifold portion H is composed of manifold holes H1 to H3.
- the manifold holes H1 to H3 are for oxygen-containing gas supply (H1), cooling fluid supply (H2), and hydrogen-containing gas supply (H3), respectively, in the stacking direction ⁇ shown in FIGS.
- Each flow path is formed.
- the cooling fluid in this embodiment is water, but is not limited thereto, and other cooling media can be used.
- the manifold part H on the other side consists of manifold holes H4 to H6.
- the manifold holes H4 to H6 are for hydrogen-containing gas discharge (H4), cooling fluid discharge (H5), and oxygen-containing gas discharge (H6), and each flow in the stacking direction ⁇ shown in FIGS. Form a road.
- the supply and discharge may be partially or entirely reversed in positional relationship.
- the frame 20 is integrated with the membrane electrode assembly 30 by, for example, injection molding.
- the frame 20 has a horizontal rectangle when viewed from the stacking direction ⁇ .
- the anode and cathode separators 40 and 41 are each formed by pressing a metal plate such as stainless steel into a corrugated shape, and are formed in substantially the same shape and the same size as the frame 20. These separators 40 and 41 have a wave-shaped cross section continuously in the long side direction, and form flow paths for power generation gas and cooling fluid by corrugated valleys.
- the hydrogen-containing gas, the oxygen-containing gas, and the cooling fluid flow from one side of the frame 20 to the other side or from the other side to the one side. That is, in the power generation gas and the cooling fluid, the long side direction of the cell unit A1 is the flow direction ⁇ .
- the membrane electrode assembly 30 and the anode and cathode separators 40 and 41 constitute a cell unit A1 by sealing the peripheral edges thereof and liquid-tightly joining them.
- the anode and cathode separators 40 and 41 of the central cell unit A1 As shown in FIG. 4, among the three cell units A1, A1, and A1 stacked on each other, the anode and cathode separators 40 and 41 of the central cell unit A1, the cathode separator 41 of the upper cell unit A1 shown in the drawing, The anode separators 40 of the cell unit A1 on the side are joined in a liquid-tight manner, and cooling fluid flow passages S3a and S3b for allowing the cooling fluid to flow between them are formed.
- FIG. 5 is a perspective view of a displacement absorbing member disposed in each of the cooling fluid flow passages formed on the upper and lower sides of the cell unit.
- FIG. 6A shows three displacement absorbing members shown in FIG. It is the fragmentary sectional view which looked at the cell unit from beta direction, and Drawing 6 (B) is a fragmentary sectional view showing other examples of the displacement absorption member.
- the cooling fluid flow passages S3a and S3b are provided with displacement absorbing members Ca and Cb each having a plurality of displacement absorbing protrusions 50 that absorb the displacement in the stacking direction ⁇ of the cell unit A1.
- Displacement absorption projections 50 of the absorption members Ca and Cb are arranged so as to cancel the bending moment generated in the cell unit A1.
- the displacement absorbing members Ca and Cb of this embodiment have the same structure, and the displacement absorbing member Cb disposed in the cooling fluid flow passage S3b is replaced with the displacement absorbing member Ca disposed in the cooling fluid flow passage S3a. It arrange
- the displacement absorbing member Ca disposed in one cooling fluid flow passage S3a will be described, and the displacement absorbing member Cb disposed in the other cooling fluid flow passage S3b will be assigned the same reference numerals and description thereof will be omitted. To do.
- the displacement absorbing member Ca is formed by integrally forming a plurality of displacement absorbing protrusions 50 on a substrate 51 made of a conductive metal plate, as shown in FIGS.
- the displacement absorbing projections 50 are arranged at regular intervals in the flow direction ⁇ to form projection rows, and five projection rows C1 to C5 are arranged at regular intervals in a direction ⁇ orthogonal to the flow direction ⁇ .
- the displacement absorbing projections 50 are arranged at intervals corresponding to the corrugated peaks of the separators 40 and 41, and as shown in FIG. And the tip side load point P2 is aligned in the flow direction ⁇ .
- protrusion rows C1 to C5 are illustrated for simplicity of explanation, but in reality, a larger number of displacement absorbing protrusions 50 are arranged vertically and horizontally.
- the displacement absorbing projections 50 are inclined in the same direction on a plane parallel to the flow direction ⁇ of the cooling fluid flowing through the cooling fluid flow passage S3a, and are formed as plates having the same shape and the same size. It is.
- the displacement absorbing projection 50 has a cantilever structure having a distal end as a free end and a proximal end as a fixed end, and has a horizontal rectangle when viewed from the flow direction ⁇ . It is integrally formed by waking up.
- the displacement absorbing protrusion 50 is formed with a connecting piece 50A inclined at a required angle from the substrate 51 and a contact piece 50B inclined at a shallower angle than the connecting piece 50A.
- the contact piece 50 ⁇ / b> B is elastically in contact with the cathode separator 41.
- the displacement absorbing projections 50 are arranged with the plate surface portion forming an acute angle facing the downstream side in the flow direction ⁇ .
- the fuel cell stack 10 includes a displacement absorbing member Ca disposed in the cooling fluid flow passage S3a on the anode separator side of the cell unit A1, and a displacement disposed on the cooling fluid flow passage S3b on the cathode separator side of the cell unit A1.
- the absorbing member Cb is arranged so that the load points of the respective displacement absorbing projections 50 overlap each other in the stacking direction ⁇ of the cell unit A1.
- the tip load point P2 acting on the displacement absorbing projection 50 of the displacement absorbing member Cb disposed in the cooling fluid flow passage S3b on the cathode separator 41 side is arranged so as to overlap each other in the stacking direction ⁇ of the cell unit A1.
- the above-mentioned base end side load point P1 of the displacement absorbing projection 50 indicates a load acting on the base end portion of the displacement absorbing projection 50.
- the tip side load point P ⁇ b> 2 of the displacement absorbing projection 50 indicates a load acting on the tip portion of the displacement absorbing projection 50.
- the term “load point” described above is an expression when viewed from the orthogonal direction ⁇ orthogonal to the flow direction ⁇ of the cooling fluid, and becomes a “load line” when viewed from the flow direction ⁇ . Yes, they have the same meaning.
- the displacement absorbing protrusions 50 By arranging the displacement absorbing protrusions 50 as described above, the direction of the load acting on the proximal end load point P1 of the displacement absorbing protrusion 50 of one displacement absorbing member Ca and the displacement absorbing protrusion of the other displacement absorbing member Cb. Since the direction of the load acting on the front end side load point P2 of 50 faces each other and coincides with the stacking direction ⁇ , a bending moment does not occur in the cell unit A1 interposed therebetween.
- the above-described displacement absorbing projections 50 can be formed into a fine structure by bending the bordered portion by a cutting process such as a punching process or a process involving removal of a material such as an etching process.
- the fuel cell stack 10 shown in FIG. 6 (B) is configured by disposing the displacement absorbing member Ca disposed in the cooling fluid flow passage S3a on the anode separator 40 side of the cell unit A1 upside down. Also in this case, the direction of the load acting on the proximal end load point P1 of the displacement absorbing projection 50 of one displacement absorbing member Ca and the proximal end load point P1 of the displacement absorbing projection 50 of the other displacement absorbing member Cb. The direction of the acting load faces each other and coincides with the stacking direction ⁇ .
- FIG. 7A is a plan view of a displacement absorbing member according to the second embodiment disposed in the cooling fluid flow passage on the anode separator side of the cell unit
- FIG. 7B is a cooling on the cathode separator side of the cell unit. It is a top view of the displacement absorption member which concerns on the other example arrange
- the displacement absorbing member Cc according to the second embodiment is different in the arrangement form of the protrusion rows C1 to C6. Each of the protrusion rows C1 to C6 has five displacement absorbing protrusions 50a to 50e arranged in a line in the flow direction ⁇ .
- the displacement absorbing member Cc has a position that bisects the proximal end load point P1 and the distal end load point P2 of the displacement absorbing protrusion 50c disposed at the center of each of the protrusion rows C1 to C6 in a direction ⁇ orthogonal to the flow direction ⁇ .
- the dimensions from the passing center line O1 to the respective base end side load points P1 and tip end side load points P2 of the respective displacement absorbing projections 50a to 50e on the upstream side and the downstream side in the flow direction ⁇ are made equal.
- the load points P1 and P2 are illustrated in some of the displacement absorbing projections 50, they naturally exist in all of the displacement absorbing projections 50.
- the dimension of the load point P1 on the base end side of the displacement absorbing protrusion 50c from the center line O1 is L1
- the dimension of the load point P2 on the distal end side of the displacement absorbing protrusion 50c is also L1.
- the base end of the displacement absorbing projection 50d is L2.
- the dimension from the center line O1 to the proximal end load point P1 of the displacement absorbing protrusion 50b is L3
- the dimension from the center line O1 to the distal end load point P2 of the displacement absorbing protrusion 50d is L3.
- the displacement absorbing projection 50a when the dimension from the center line O1 to the load point P2 on the distal end side of the displacement absorbing projection 50a is L4, the base end of the displacement absorbing projection 50e from the center line O1.
- the dimension up to the side load point P1 is L4.
- the dimension from the center line O1 to the proximal end load point P1 of the displacement absorbing protrusion 50a is L5
- the dimension from the center line O1 to the distal end load point P2 of the displacement absorbing protrusion 50e is L5.
- the displacement absorbing member Cc according to the second embodiment described above is disposed in the cooling fluid flow passage S3a in the direction shown in FIG. 7A, and the displacement absorbing member Cc is as shown in FIG. 7B. And arranged in the cooling fluid flow passage S3b after being rotated 180 degrees in the in-plane direction.
- the direction of the load acting on the tip side load point P2 of the displacement absorbing projection 50 of Cc faces each other and coincides with the stacking direction ⁇ , and no bending moment is generated in the cell unit A1 interposed therebetween.
- the manufacturing cost can be reduced.
- FIG. 8A is a plan view of a displacement absorbing member according to a third other example arranged in the cooling fluid flow path on the anode separator side of the cell unit
- FIG. 8B is a cooling view on the cathode separator side of the cell unit. It is a top view of the displacement absorption member which concerns on 3rd embodiment arrange
- FIG. 9 is a partially enlarged sectional view showing a state in which the displacement absorbing member according to the third embodiment is disposed in the cooling fluid flow passage.
- the displacement absorbing member Cd according to the third embodiment is different from that described above in the arrangement form of the protrusion rows C1 to C5.
- Each of the projection rows C1 to C5 is obtained by arranging five displacement absorbing projections 50a to 50e in the flow direction ⁇ .
- the projection row C3 arranged at the center of each of the projection rows C1 to C5 is positioned on the center line O2 parallel to the flow direction ⁇ , and the other projection rows C2, C1, C4. , C5 are arranged at equal intervals W1, W2 (see FIG. 9).
- each of the displacement absorbing projections 50a to 50e forming the first projection row C1 on the upper side is the same in a plane parallel to the flow direction ⁇ of the cooling fluid flowing in the cooling fluid flow passage S3a.
- the plates are tilted in the same direction and have the same shape and the same Daikisa plate-like body.
- These displacement absorbing projections 50a to 50e are arranged with the plate surface portion forming an acute angle facing the downstream side in the flow direction ⁇ .
- the displacement absorbing projections 50a to 50e forming the second projection row C2 are in a direction opposite to that of the first projection row C1 in a plane parallel to the flow direction ⁇ of the cooling fluid flowing in the cooling fluid flow passage S3a. And plate-like bodies having the same shape and the same size. That is, these displacement absorbing projections 50a to 50e are arranged with the plate surface portion forming an acute angle facing the upstream side in the flow direction ⁇ .
- the displacement absorption protrusions 50 of the odd rows C1, C3, C5 are inclined toward the downstream side in the flow direction ⁇ , and the displacement absorption protrusions 50 of the even rows C2, C4 are directed toward the upstream side of the flow direction ⁇ . Is inclined.
- proximal end load points P1 and the distal end load points P2 of the adjacent displacement absorbing projections 50a to 50e and 50a to 50e in each row are arranged in a straight line in a direction ⁇ orthogonal to the flow direction ⁇ .
- the displacement absorbing member Cd according to the third embodiment described above is arranged in the cooling fluid flow passage S3a in the direction shown in FIG. 8A, while another displacement absorbing member Cd having the same configuration is arranged in the drawing (B). As shown in FIG. 4, the cooling fluid flow passage S3b is arranged in a state rotated by 180 degrees in the in-plane direction.
- the direction of the load acting on the tip side load point P2 of the displacement absorbing projection 50 of Cc faces each other and coincides with the stacking direction ⁇ , and no bending moment is generated in the cell unit A1 interposed therebetween.
- the bias of the load in the flow direction ⁇ can be suppressed by reversing the inclination directions of the displacement absorbing projections 50 in the odd rows C1, C3, C5 and the even rows C2, C4.
- FIG. 10A is a plan view of the displacement absorbing member according to the fourth embodiment arranged in the cooling fluid flow path on the anode separator side of the cell unit
- FIG. 10B is the cooling on the cathode separator side of the cell unit. It is a top view of the displacement absorption member which concerns on 4th embodiment arrange
- the arrangement form of the protrusion rows C1 to C6 is different from that described above.
- the protrusion rows C1 to C6 are each formed by arranging five displacement absorbing protrusions 50a to 50e in a line in the flow direction ⁇ .
- the other protrusion rows C3, C2, C1, C4, C5, and C6 are arranged at equal intervals W1, W2, and W3 on both sides of the center line O2 parallel to the flow direction ⁇ . .
- the displacement absorbing projections 50a to 50e forming the first projection row C1 on the upper side are in the same direction on a plane parallel to the flow direction ⁇ of the cooling fluid flowing through the one cooling fluid flow passage S3a. And plate-like bodies having the same shape and the same size. These displacement absorbing projections 50a to 50e are arranged with the plate surface portion forming an acute angle facing the upstream side in the flow direction ⁇ .
- the displacement absorbing protrusions 50a to 50e forming the second protrusion row C2 are in a direction opposite to that of the protrusion row C1 in a plane parallel to the flow direction ⁇ of the cooling fluid flowing through the one cooling fluid flow passage S3a.
- the plate-like bodies are inclined and have the same shape and the same size.
- These displacement absorbing projections 50a to 50e are arranged with the plate surface portion forming an acute angle facing the downstream side in the flow direction ⁇ .
- the displacement absorbing projections 50 of the odd rows C1, C3, C5 are inclined toward the upstream side in the flow direction ⁇ with the plate surface portion forming an acute angle
- the displacement absorbing projections 50 of the even rows C2, C4, C6 Is inclined toward the downstream side of the flow direction ⁇ with a plate surface portion forming an acute angle.
- the base end side load points P1 and the tip end side load points P2 of the adjacent displacement absorbing protrusions 50a to 50e and 50a to 50e in each row are arranged in a straight line in the orthogonal direction ⁇ .
- the displacement absorbing member Ce according to the fourth embodiment described above is arranged in one cooling fluid flow passage in the direction shown in FIG. 10A, while another displacement absorbing member Ce having the same configuration is replaced with that in FIG. As shown in B), it is rotated 180 degrees in the in-plane direction and arranged in the other cooling fluid flow passage.
- the direction of the load acting on the load point P2 on the distal end side of the displacement absorbing projections 50a to 50e of the displacement absorbing member Ce arranged in S3b faces each other and coincides with the stacking direction ⁇ , and the cell unit A1 interposed between them.
- FIG. 11A is a plan view of a displacement absorbing member according to the fifth embodiment
- FIG. 11B is a partially enlarged view thereof
- FIG. 12 is a partially enlarged cross-sectional view showing a state in which the displacement absorbing member according to the fifth embodiment is disposed in the cooling fluid flow passage.
- the displacement absorbing member Cf according to the fifth embodiment is obtained by integrally forming protrusion rows C1 to C5 on a substrate 51A made of a conductive metal plate independently of each other.
- Each of the protrusion rows C1 to C5 is formed in a belt-like body having the same constant width, and has four upper load points P2a to d and four lower load points P1a to d in the flow direction ⁇ . Concave and convex shapes are formed in a sine waveform.
- the displacement absorbing member Cf is arranged from the center line O1 parallel to the above-described orthogonal direction ⁇ at the position that bisects the upper load point P2c and the lower load point P1b arranged at the center of each of the projection rows C1 to C5.
- the dimensions L1 to L4 from the upper load point P2a to d on the upstream side and the downstream side of ⁇ to the lower load point P1a to d are made equal.
- the upper load points P2a to P2d correspond to the distal end side load points
- the lower load points P1a to d correspond to the proximal end load points.
- the dimension from the center line O1 to the upper load point P2c and from the center line O1 to the lower load point P1b is L1.
- the dimension from the center line O1 to the upper load point P2b is L2
- the dimension from the center line O1 to the lower load point P1c is L2.
- the dimension from the center line O1 to the lower load point P1a is L3
- the dimension from the center line O1 to the upper load point P2d is L3.
- the dimension from the center line O1 to the upper load point P2a is L4
- the dimension from the center line O1 to the lower load point P1d is L4.
- the upper load points P2a to d and the lower load points P1a to d forming the projection rows C1 to C5 are arranged at regular intervals along the flow direction ⁇ and arranged so as to form the projection rows C1 to C5. It is. As shown in FIG. 6A, the proximal end side load points P1 and the distal end side load points P2 of the displacement absorbing projections 50 are aligned in a line in the flow direction ⁇ . Further, the protrusion rows C1 to C5 are arranged at a predetermined interval in a direction ⁇ orthogonal to the flow direction ⁇ .
- the displacement absorbing member Cf according to the fifth embodiment described above is disposed in one cooling fluid flow passage, while the displacement absorbing member Cf is rotated 180 degrees in the in-plane direction. In the other cooling fluid flow path.
- FIGS. 13 is a partial cross-sectional view corresponding to the line II shown in FIG. 3, and FIG. 14A shows an anode separator of the cell unit and a cathode separator of another cell unit adjacent to the cell unit.
- FIG. 6B is a perspective view of a displacement absorbing member disposed in a cooling fluid flow path that is partitioned between the cathode separator of one cell unit and another cell unit adjacent to the one cell unit. It is a perspective view of the displacement absorption member arrange
- FIG. 15 is a perspective view for explaining a load acting on the displacement absorbing member disposed in each of the two cooling fluid flow paths.
- symbol same as them is attached
- subjected and description is abbreviate
- the anode and cathode separators 40 and 41 of the central cell unit A1 As shown in FIG. 13, among the three cell units A1, A1, and A1 stacked on each other, the anode and cathode separators 40 and 41 of the central cell unit A1, the cathode separator 41 'of the upper cell unit A1 shown in the figure, The anode separators 40 'of the lower cell unit A1 are joined in a liquid-tight manner, and cooling fluid flow passages S3a and S3b are formed between them for circulating a cooling fluid.
- the following two displacement absorbing members Cg and Cg are the same as each other, but are not limited thereto.
- the displacement absorbing member Cg arranged in the above is disposed so that these displacement absorbing projections 50 and 50 face each other and the directions of loads acting on the displacement absorbing projections 50 and 50 facing each other face each other. Yes.
- the load which acts on the displacement absorption protrusions 50 and 50 is a load which acts on the lamination direction (alpha) of cell unit A1.
- the displacement absorbing members Cg have the same structure as described above, the following description will be made on the one disposed in one cooling fluid flow passage S3a and the other disposed in the other cooling fluid flow passage S3b. Are given the same reference numerals and explanations thereof are omitted.
- the displacement absorbing member Cg is perpendicular to the flow direction ⁇ of the protrusion rows C1 to C5 along the flow direction ⁇ of the cooling fluid flowing through the one cooling fluid flow path S3a.
- a plurality of rows are arranged at predetermined intervals in the orthogonal direction ⁇ .
- five protrusion rows indicated by C1 to C5 are illustrated.
- Each of the protrusion rows C1 to C5 is composed of a plurality of displacement absorbing protrusions 50 arranged at a constant interval in the orthogonal direction ⁇ , and these are integrally formed on a substrate 51 made of a conductive metal plate.
- the “fixed interval” is set to be equal to or greater than the width W1 (see FIG. 13) of the displacement absorbing projections 50, 50, but is not limited thereto.
- the displacement absorbing projections 50 that form the first, third, and fifth projection rows C1, C3, and C5 shown in the figure are the same in the orthogonal direction ⁇ that is orthogonal to the flow direction ⁇ of the cooling fluid flowing in the cooling fluid flow passage S3a.
- the plate-like bodies are inclined in the direction and have the same shape and the same size.
- the displacement absorbing projection 50 is a horizontal rectangle when viewed from the direction ⁇ perpendicular to the flow direction ⁇ , and is inclined in the opposite direction when viewed from the flow direction ⁇ , and is cut out from the substrate 51. Are integrally formed.
- These displacement absorbing projections 50 are composed of a connecting piece 50A inclined at a required angle from the substrate 51 and a contact piece 50B inclined at a shallower angle than the connecting piece 50A. It abuts elastically on a certain contact piece 50bB cathode separator 41 '.
- the displacement absorbing projections 50 are arranged with their plate thickness faces perpendicular to the flow direction ⁇ .
- the displacement absorbing member Cg makes the substrate 51 abut on the note separator 40 and elastically contacts the contact piece 50b of the displacement absorbing projection 50 with the cathode separator 41 ′. In this state, it is disposed in the cooling fluid flow passage S3a.
- the displacement absorbing projections 50 forming the second and fourth projection rows C2, C4 form the previous projection rows C1, C3, C5 in the flow direction ⁇ of the cooling fluid flowing in the cooling fluid flow passage S3a.
- the displacement absorbing projections 50 are inclined in the opposite direction, and are formed into plate-like bodies having the same shape and the same size. These displacement absorbing projections 50 are horizontal rectangles when viewed from the orthogonal direction ⁇ , and are integrally molded by cutting up from the substrate 51.
- the displacement absorbing projections 50 are arranged in a direction perpendicular to the flow direction ⁇ , as described above.
- the above-described protrusion rows C1 to C5 are arranged symmetrically about the center line O2 in the direction ⁇ orthogonal to the flow direction ⁇ .
- the third projection row C3 arranged at the center of each projection row C1 to C5 is positioned on the center line O2 parallel to the orthogonal direction ⁇ , and the other projection rows C2, C1, C4, C5 are equal to each other. They are arranged at intervals W1, W2.
- the displacement absorbing member Cg disposed in the other cooling fluid flow passage S3b is the same as the displacement absorbing member Cg disposed in the one cooling fluid flow passage S3a, but is rotated 180 degrees in the cooling fluid flow direction ⁇ . It is arranged in the state.
- the displacement absorbing projections 50, 50 are opposed to each other, and the displacement absorbing projections 50, 50 opposed to each other are arranged so that the contact portions with the separators 41 'are opposite in the cooling fluid flow direction ⁇ . ing.
- the direction of the load acting on the load point P2 on the distal end side of the displacement absorbing projection 50 faces each other and coincides with the stacking direction ⁇ , and no bending moment is generated in the cell unit A1 interposed therebetween.
- the direction of the load Fb acting upward on the contact piece 50b of the displacement absorbing protrusion 50 of the absorbing member Cb coincides with the stacking direction ⁇ .
- the direction of the load acting on the contact piece 50b of the displacement absorbing projection 50 of the displacement absorbing member Ca and the direction of the load acting on the base 50a 'of the connecting piece 50a of the displacement absorbing projection 50 of the displacement absorbing member Cb are also shown. Corresponds to the stacking direction ⁇ .
- the following effects can be obtained. That is, a plurality of cell units A1 in which the membrane electrode assembly 30 is disposed between the two separators 40 and 41 are stacked, and the cooling fluid flow passages S3a and S3b for circulating the cooling fluid between the adjacent cell units A1. Is provided with displacement absorbing members Ca to Cg having a plurality of displacement absorbing protrusions 50 for absorbing displacement in the stacking direction of the cell unit A1 in the cooling fluid flow passages S3a and S3b.
- the displacement absorbing protrusions 50 of the members Ca to Cg are disposed so as to cancel the bending moment generated in the cell unit A1, thereby preventing the bending moment from being generated in the cell unit A1 and preventing the cell unit A1 from being damaged. can do.
- a displacement absorbing member Ca disposed in the cooling fluid flow passage S3a on the anode separator side of the cell unit A1 and a displacement absorbing member Cb disposed on the cooling fluid flow passage S3b on the cathode separator side of the cell unit A1 are provided.
- the direction and arrangement of the displacement absorbing projections 50 in the displacement absorbing members Ca to Cg are devised, and in particular, the displacement absorbing projections 50 are arranged symmetrically about the center line in the direction ⁇ perpendicular to the flow direction ⁇ of the cooling fluid.
- the above-described effect can be obtained simply by changing the direction of the same displacement absorbing member, so that the number of parts can be reduced, and the manufacturing cost can be reduced.
- the displacement absorbing projections 50 are formed independently of each other, the influence of the displacement absorbing projections disposed around can be prevented. Further, the displacement absorbing protrusion 50 is formed in a plate-like body, and by arranging the plate thickness surface thereof at right angles to the flow direction ⁇ , in addition to the effect of preventing the bending moment, the cooling fluid The flowability can be further improved.
- the displacement absorbing protrusion 50 is cut and raised from the substrate 51 and integrally formed, so that a process such as forming a protrusion part separately and then joining it is unnecessary and can be easily manufactured.
- a process such as forming a protrusion part separately and then joining it is unnecessary and can be easily manufactured.
- it is easier to secure the strength of the edge part where the displacement absorbing projections 50 are in contact with the substrate 51 than when the projections are formed by joining, and the reliability can be improved.
- Membrane electrode assembly 40 41 Separator 50 Displacement absorbing protrusion A1 Cell unit Ca to Ch Displacement absorbing member P1 Base end side load point P2 Tip end side load point S1, S2 Gas flow passage S3a, S3b Cooling fluid flow passage ⁇ Lamination Direction ⁇ Flow direction ⁇ Direction perpendicular to the flow direction
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
以下、図面に基づいて、本発明の実施形態を説明する。図1は、本発明の一実施形態に係る燃料電池スタックの外観斜視図であり、図2は、その燃料電池スタックを分解して示す分解斜視図である。また、図3は、その燃料電池スタックを構成するセルユニットの平面図であり、図4は、図3に示すセルユニットを複数積み重ねた状態において、そのI‐I線に沿う部分拡大断面図である。
図7(A)は、セルユニットのアノードセパレータ側の冷却流体流通路に配置した第二の実施形態に係る変位吸収部材の平面図であり、(B)は、セルユニットのカソードセパレータ側の冷却流体流通路に配置した他例に係る変位吸収部材の平面図である。第二の実施形態に係る変位吸収部材Ccは、突起列C1~C6の配列形態が相違している。各突起列C1~C6は、流通方向βにおいて夫々5つの変位吸収突起50a~50eを一列に配置したものである。
図8(A)は、セルユニットのアノードセパレータ側の冷却流体流通路に配置した第三の他例に係る変位吸収部材の平面図であり、(B)は、セルユニットのカソードセパレータ側の冷却流体流通路に配置した第三の実施形態に係る変位吸収部材の平面図である。図9は、第三の実施形態に係る変位吸収部材を冷却流体流通路に配設した状態を示す部分拡大断面図である。
図10(A)は、セルユニットのアノードセパレータ側の冷却流体流通路に配置した第四の実施形態に係る変位吸収部材の平面図であり、(B)は、セルユニットのカソードセパレータ側の冷却流体流通路に配置した第四の実施形態に係る変位吸収部材の平面図である。
図11(A)は、第五の実施形態に係る変位吸収部材の平面図であり、(B)は、その部分拡大図である。図12は、その第五の実施形態に係る変位吸収部材を冷却流体流通路に配設した状態を示す部分拡大断面図である。
次に、図13~15を参照して、第六の実施形態に係る変位吸収部材について説明する。図13は、図3に示すI‐I線に相当する断面における部分断面図であり、図14(A)は、セルユニットのアノードセパレータと、そのセルユニットに隣り合う他のセルユニットのカソードセパレータとの間に区画形成される冷却流体流通路に配置した変位吸収部材の斜視図であり、(B)は、一のセルユニットのカソードセパレータと、その一のセルユニットに隣り合う他のセルユニットのアノードセパレータとの間に区画形成される冷却流体流通路に配置する変位吸収部材の斜視図である。
すなわち、二つのセパレータ40,41間に膜電極接合体30を配設した複数のセルユニットA1を積層すると共に、隣接するセルユニットA1間に冷却流体を流通させるための冷却流体流通路S3a,S3bを夫々形成した燃料電池スタック10において、冷却流体流通路S3a,S3bに、セルユニットA1の積層方向における変位を吸収する複数の変位吸収突起50を有する変位吸収部材Ca~Cgを設けると共に、変位吸収部材Ca~Cgの変位吸収突起50が、セルユニットA1に生じる曲げモーメントを相殺するように配設したことにより、セルユニットA1に曲げモーメントが生じるのを防止し、セルユニットA1の損傷を未然阻止することができる。
40,41 セパレータ
50 変位吸収突起
A1 セルユニット
Ca~Ch 変位吸収部材
P1 基端部側荷重点
P2 先端部側荷重点
S1,S2 ガス流通路
S3a,S3b 冷却流体流通路
α 積層方向
β 流通方向
γ 流通方向に直交する方向
Claims (13)
- 二つのセパレータ間に膜電極接合体を配設した複数のセルユニットを積層すると共に、隣接するセルユニット間に冷却流体を流通させるための冷却流体流通路を夫々形成した燃料電池スタックにおいて、
冷却流体流通路に、セルユニットの積層方向における変位を吸収する複数の変位吸収突起を有する変位吸収部材を設けると共に、
変位吸収部材の変位吸収突起が、セルユニットに生じる曲げモーメントを相殺するように配設してあることを特徴とする燃料電池スタック。 - セルユニットのアノードセパレータ側の冷却流体流通路に配設した変位吸収部材と、同セルユニットのカソードセパレータ側の冷却流体流通路に配設した変位吸収部材とを、互いの各変位吸収突起の荷重点が、セルユニットの積層方向において重なり合うように配置してあることを特徴とする請求項1に記載の燃料電池スタック。
- セルユニットのアノードセパレータ側の冷却流体流通路に配設した変位吸収部材の変位吸収突起の基端部に作用する基端部荷重点と、同セルユニットのカソードセパレータ側の冷却流体流通路に配設した変位吸収部材の変位吸収突起の先端部に作用する先端部側荷重点とが、セルユニットの積層方向において重なり合うように配置してあることを特徴とする請求項1に記載の燃料電池スタック。
- 複数の変位吸収突起を一列に配置した奇数の突起列を有し、
各突起列のうちの中央の突起列を、冷却流体の流通方向と並行な中心線上に配置し、その中心線上に配置した突起列の変位吸収突起に作用する荷重点と、その中心線上に配置した突起列に並列している突起列の変位吸収突起に作用する荷重点との距離を等しくしたことを特徴とする請求項1~3のいずれか1項に記載の燃料電池スタック。 - 奇数の変位吸収突起を一列に配置した奇数の突起列を有し、
各変位吸収突起のうちの中央の変位吸収突起を、冷却流体の流通方向と直交する中心線上に配列し、その中心線よりも流通方向の上流側に位置する変位吸収突起の先端部に作用する先端側荷重点と、その中心線よりも流通方向の下流側に位置する変位吸収突起の基端部に作用する基端側荷重点とを中心線対称に配置したことを特徴とする請求項1~3のいずれか1項に記載の燃料電池スタック。 - 複数の変位吸収突起を一列に配置した奇数の突起列を有し、
各突起列のうちの中央の突起列を、冷却流体の流通方向と平行な中心線上に配置し、その中心線を挟む両側の突起列を中心線対称に配置したことを特徴とする請求項1~3のいずれか1項に記載の燃料電池スタック。 - 複数の変位吸収突起を一列に配置した偶数の突起列を有し、
冷却流体の流通方向と平行な中心線を挟む両側に、突起列を中心線対称に配置したことを特徴とする請求項1~3のいずれか1項に記載の燃料電池スタック。 - 中心線を挟んで最も内側に位置する二つの突起列の変位吸収突起を互いに同じ向きに傾斜させ、且つ、その外側に位置する突起列の変位吸収突起の傾斜を、一列毎に互いに異なる向きに傾斜させたことを特徴とする請求項6又は7に記載の燃料電池スタック。
- 隣り合う冷却流体流通路毎に変位吸収突起を上下反転させて配設したことを特徴とする請求項1~8のいずれか1項に記載の燃料電池スタック。
- 変位吸収突起が、互いに交わる向きに傾けて複数配列してあり、
互いに対向する当該変位吸収突起同士の各セパレータとの接触部位が、冷却流体の流通方向又はこれと直交する方向において逆向きに配置してあることを特徴とする請求項1~8のいずれか1項に記載の燃料電池スタック。 - 変位吸収突起が、互いに独立して形成してあることを特徴とする請求項1~10のいずれか1項に記載の燃料電池スタック。
- 変位吸収突起が、板状体として形成してあり、その板厚面を流体流通方向に直角に向けて配列してあることを特徴とする請求項10に記載の燃料電池スタック。
- 冷却流体の流通方向と交差する平面において互いに交わる向きに傾けた変位吸収突起を、その流通方向において交互に配列したことを特徴とする請求項10~12のいずれか1項に記載の燃料電池スタック。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201280073095.9A CN104335403B (zh) | 2012-05-23 | 2012-12-26 | 燃料电池堆 |
EP12877344.7A EP2846385B1 (en) | 2012-05-23 | 2012-12-26 | Fuel cell stack |
US14/397,339 US9825313B2 (en) | 2012-05-23 | 2012-12-26 | Fuel cell stack with displacement absorbing member |
CA2871344A CA2871344C (en) | 2012-05-23 | 2012-12-26 | Fuel cell stack with displacement absorbing projections |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012117779 | 2012-05-23 | ||
JP2012-117779 | 2012-05-23 | ||
JP2012255850A JP6066279B2 (ja) | 2012-05-23 | 2012-11-22 | 燃料電池スタック |
JP2012-255850 | 2012-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013175669A1 true WO2013175669A1 (ja) | 2013-11-28 |
Family
ID=49623386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2012/083628 WO2013175669A1 (ja) | 2012-05-23 | 2012-12-26 | 燃料電池スタック |
Country Status (6)
Country | Link |
---|---|
US (1) | US9825313B2 (ja) |
EP (1) | EP2846385B1 (ja) |
JP (1) | JP6066279B2 (ja) |
CN (1) | CN104335403B (ja) |
CA (1) | CA2871344C (ja) |
WO (1) | WO2013175669A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2940766B1 (en) * | 2012-12-26 | 2019-05-01 | Nissan Motor Co., Ltd | Fuel cell stack |
JP6143868B2 (ja) * | 2013-07-22 | 2017-06-07 | 日産自動車株式会社 | 燃料電池の製造方法および燃料電池 |
KR101491372B1 (ko) * | 2013-12-17 | 2015-02-06 | 현대자동차주식회사 | 연료 전지 분리판 및 이를 포함하는 연료 전지 스택 |
CN109818018A (zh) * | 2017-11-16 | 2019-05-28 | 神华集团有限责任公司 | 燃料电池系统及包括其的动力装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003109648A (ja) * | 2001-09-28 | 2003-04-11 | Honda Motor Co Ltd | 燃料電池スタック |
JP2005150014A (ja) * | 2003-11-19 | 2005-06-09 | Hitachi Ltd | 燃料電池及びそれに用いられる冷却用セパレータ |
JP2006309964A (ja) * | 2005-04-26 | 2006-11-09 | Toyota Motor Corp | 燃料電池 |
JP2006318863A (ja) * | 2005-05-16 | 2006-11-24 | Toyota Motor Corp | 燃料電池のセパレータ |
JP2009526347A (ja) * | 2006-02-05 | 2009-07-16 | メタル−テック リミテッド | 流体供給プレート |
JP2010140656A (ja) * | 2008-12-09 | 2010-06-24 | Nissan Motor Co Ltd | 燃料電池用集電体及び固体電解質型燃料電池 |
JP2012048940A (ja) * | 2010-08-26 | 2012-03-08 | Toyota Boshoku Corp | 燃料電池 |
JP2012129108A (ja) * | 2010-12-16 | 2012-07-05 | Nissan Motor Co Ltd | 燃料電池スタック |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4432518B2 (ja) | 2003-10-27 | 2010-03-17 | トヨタ自動車株式会社 | 燃料電池システム |
US20090136805A1 (en) * | 2007-11-23 | 2009-05-28 | Toyota Jidosha Kabushiki Kaisha | Fuel cell |
US8257881B2 (en) * | 2008-07-18 | 2012-09-04 | GM Global Technology Operations LLC | Compliant feed region in stamped metal flowfield of a fuel cell plate to eliminate bias |
JP5648378B2 (ja) * | 2010-09-06 | 2015-01-07 | 日産自動車株式会社 | 燃料電池スタック |
JP5927839B2 (ja) * | 2011-10-25 | 2016-06-01 | 日産自動車株式会社 | 燃料電池スタック |
-
2012
- 2012-11-22 JP JP2012255850A patent/JP6066279B2/ja not_active Expired - Fee Related
- 2012-12-26 EP EP12877344.7A patent/EP2846385B1/en not_active Not-in-force
- 2012-12-26 CA CA2871344A patent/CA2871344C/en active Active
- 2012-12-26 WO PCT/JP2012/083628 patent/WO2013175669A1/ja active Application Filing
- 2012-12-26 CN CN201280073095.9A patent/CN104335403B/zh not_active Expired - Fee Related
- 2012-12-26 US US14/397,339 patent/US9825313B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003109648A (ja) * | 2001-09-28 | 2003-04-11 | Honda Motor Co Ltd | 燃料電池スタック |
JP2005150014A (ja) * | 2003-11-19 | 2005-06-09 | Hitachi Ltd | 燃料電池及びそれに用いられる冷却用セパレータ |
JP2006309964A (ja) * | 2005-04-26 | 2006-11-09 | Toyota Motor Corp | 燃料電池 |
JP2006318863A (ja) * | 2005-05-16 | 2006-11-24 | Toyota Motor Corp | 燃料電池のセパレータ |
JP2009526347A (ja) * | 2006-02-05 | 2009-07-16 | メタル−テック リミテッド | 流体供給プレート |
JP2010140656A (ja) * | 2008-12-09 | 2010-06-24 | Nissan Motor Co Ltd | 燃料電池用集電体及び固体電解質型燃料電池 |
JP2012048940A (ja) * | 2010-08-26 | 2012-03-08 | Toyota Boshoku Corp | 燃料電池 |
JP2012129108A (ja) * | 2010-12-16 | 2012-07-05 | Nissan Motor Co Ltd | 燃料電池スタック |
Also Published As
Publication number | Publication date |
---|---|
EP2846385A4 (en) | 2015-07-01 |
US9825313B2 (en) | 2017-11-21 |
EP2846385A1 (en) | 2015-03-11 |
EP2846385B1 (en) | 2017-05-03 |
CA2871344C (en) | 2019-01-22 |
CN104335403B (zh) | 2017-07-04 |
CA2871344A1 (en) | 2013-11-28 |
JP2014003004A (ja) | 2014-01-09 |
JP6066279B2 (ja) | 2017-01-25 |
US20150079488A1 (en) | 2015-03-19 |
CN104335403A (zh) | 2015-02-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5846315B2 (ja) | シールプレート及びこれを用いた燃料電池スタック | |
US8974980B2 (en) | Fuel cell | |
JP5811439B2 (ja) | 燃料電池ユニット及び燃料電池スタック | |
US20150136589A1 (en) | Electrochemical system | |
JP6649938B2 (ja) | 発電セル | |
US9680168B2 (en) | Fuel cell stack | |
JP6066279B2 (ja) | 燃料電池スタック | |
CN109755607B (zh) | 凸起密封结构 | |
CN104247116B (zh) | 燃料电池堆 | |
JP6051852B2 (ja) | 燃料電池スタックとこれに用いるシールプレート | |
JP6150040B2 (ja) | 燃料電池及び燃料電池スタック | |
EP2696414B1 (en) | Fuel cell | |
JP2015191802A (ja) | 燃料電池スタック | |
JP2013093184A (ja) | 燃料電池スタック | |
JP2019186052A (ja) | 燃料電池用セパレータ | |
US20230343972A1 (en) | Separator plate and arrangement for an electrochemical system, and electrochemical system | |
JP2012043556A (ja) | 燃料電池 | |
JP2024141637A (ja) | 燃料電池用セパレータの流路構造 | |
JP2021012827A (ja) | 燃料電池用金属セパレータ、接合セパレータ及び発電セル |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 12877344 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2871344 Country of ref document: CA |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14397339 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2012877344 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2012877344 Country of ref document: EP |