WO2017141490A1 - 燃料電池の単セル構造 - Google Patents
燃料電池の単セル構造 Download PDFInfo
- Publication number
- WO2017141490A1 WO2017141490A1 PCT/JP2016/080716 JP2016080716W WO2017141490A1 WO 2017141490 A1 WO2017141490 A1 WO 2017141490A1 JP 2016080716 W JP2016080716 W JP 2016080716W WO 2017141490 A1 WO2017141490 A1 WO 2017141490A1
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- WO
- WIPO (PCT)
- Prior art keywords
- frame
- fuel cell
- separator
- electrode assembly
- manifold
- Prior art date
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Classifications
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- 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
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
-
- 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
-
- 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
- H01M8/0271—Sealing or supporting means around electrodes, matrices or membranes
- H01M8/0273—Sealing or supporting means around electrodes, matrices or membranes with sealing or supporting means in the form of a frame
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- 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
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- 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 single cell structure of a fuel cell.
- bridges provided between separators are provided with various seals made of ethylene propylene diene rubber, acrylonitrile butadiene rubber or the like integrated by baking or injection molding.
- An object of the present invention is to provide a single cell structure of a fuel cell that can suppress an increase in pressure loss even when the separator interval of single cells is small.
- the present inventor has intensively studied to achieve the above object. As a result, the present inventors have found that the above object can be achieved by providing a gas flow part formed by a convex part at a predetermined position of the frame, and have completed the present invention.
- the single cell structure of the fuel cell according to the present invention includes a membrane electrode assembly with a frame, a pair of separators, a gas flow path portion, a manifold portion, a protruding portion, an extension portion of the frame, and a gas flow portion.
- the membrane electrode assembly with a frame includes a membrane electrode assembly and a frame that supports the membrane electrode assembly from the outer periphery.
- a pair of separator is arrange
- the gas flow path portion is formed between the separator and the membrane electrode assembly, and gas is supplied.
- the manifold portion has a hole penetrating in the stacking direction of the frame and the separator.
- At least one separator of the pair of separators protrudes toward the membrane electrode assembly with the frame and supports the frame in the vicinity of the manifold part. Further, the extending portion of the frame extends to the manifold portion side from the protruding portion. Furthermore, the gas circulation part is formed in the extension part of the frame, and supplies gas from the manifold part to the gas flow path part. And the gas distribution part is formed from the convex-shaped part provided in the extension part of the flame
- FIG. 1 is a perspective view illustrating a fuel cell stack according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view illustrating a fuel cell stack according to an embodiment of the present invention.
- FIG. 3A is a perspective view for explaining a single fuel cell
- FIG. 3B is a perspective view in an exploded state for explaining the single fuel cell.
- FIG. 4 is a plan view for explaining a main part of the fuel cell single cell according to the first embodiment constituting the fuel cell module.
- FIG. 5 is a cross-sectional view illustrating a main part of the fuel cell single cell according to the first embodiment.
- FIG. 6 is another cross-sectional view illustrating the main part of the fuel cell single cell according to the first embodiment.
- FIG. 7 is still another cross-sectional view for explaining the main part of the fuel cell single cell according to the first embodiment.
- FIG. 8 is a plan view for explaining a main part of a fuel cell single cell according to the second embodiment constituting the fuel cell module.
- FIG. 9 is a cross-sectional view for explaining a main part of a fuel cell single cell according to the second embodiment.
- FIG. 10 is another cross-sectional view illustrating the main part of the fuel cell single cell according to the second embodiment.
- FIG. 11 is still another cross-sectional view for explaining a main part of the fuel cell single cell according to the second embodiment.
- FIG. 12 is a plan view for explaining a main part of a fuel cell single cell according to the third embodiment constituting the fuel cell module.
- FIG. 13 is a cross-sectional view illustrating a main part of a fuel cell single cell according to the third embodiment.
- FIG. 14 is another cross-sectional view for explaining a main part of a fuel cell single cell according to the third embodiment.
- FIG. 15 is a plan view for explaining a main part of a fuel cell single cell according to the fourth embodiment constituting the fuel cell module.
- FIG. 16 is a cross-sectional view illustrating a main part of a fuel cell single cell according to the fourth embodiment.
- FIG. 17 is another cross-sectional view for explaining a main part of a fuel cell single cell according to the fourth embodiment.
- FIG. 1 is a perspective view illustrating a fuel cell stack according to an embodiment of the present invention.
- FIG. 2 is an exploded perspective view illustrating a fuel cell stack according to an embodiment of the present invention.
- FIG. 3A is a perspective view illustrating a single fuel cell
- FIG. 3B is a perspective view of an exploded state illustrating the single fuel cell.
- the fuel cell stack FS includes a plurality of fuel cell modules M in which a plurality of fuel cell single cells C are stacked and integrated, and a seal interposed between the fuel cell modules M.
- Plate P The fuel cell single cell C and the seal plate P in the illustrated example both have a rectangular plate shape having substantially the same vertical and horizontal dimensions. In FIG. 2, two fuel cell modules M and one seal plate P are shown, but actually, more fuel cell modules M and seal plates P are stacked.
- the fuel cell stack FS has end plates 56A and 56B disposed at both ends in the stacking direction of the fuel cell module M, respectively, and both surfaces on the long side of the single fuel cell C (in FIGS. 1 and 2).
- Fastening plates 57A and 57B are provided on the upper and lower surfaces, and reinforcing plates 58A and 58B are provided on both surfaces on the short side.
- the fastening plates 57A and 57B and the reinforcing plates 58A and 58B are connected to both end plates 56A and 56B by bolts (not shown).
- the fuel cell stack FS has a case-integrated structure as shown in FIG. 1, and each fuel cell module M and the seal plate P are constrained and pressurized in the stacking direction so that each fuel cell single cell C is predetermined. In order to maintain good gas sealing performance and electrical conductivity.
- the fuel cell single cell C includes a membrane electrode assembly 10 having a frame comprising a membrane electrode assembly 12 and a frame 20 that supports the membrane electrode assembly 12 from the outer periphery, and a membrane electrode assembly having a frame. 10, a pair of separators 30 and 30 disposed on both surfaces, and manifold portions H1 to H6 in which holes penetrating in the stacking direction of the frame 20 and the separator 30 are formed.
- the fuel cell single cell C includes a gas flow path portion F formed between the separator 30 and the membrane electrode assembly 12 and supplied with gas.
- the membrane electrode assembly 12 is generally called MEA (Membrane Electrode Assembly), and detailed illustration is omitted.
- MEA Membrane Electrode Assembly
- An electrolyte membrane made of a solid polymer is sandwiched between a pair of electrode layers (anode and cathode). It has a structure.
- This membrane electrode assembly 12 has a resin frame 20 around it and is integrated.
- Each separator 30 is a metal plate member having an inverted shape, for example, stainless steel, and can be formed into an appropriate shape by press working.
- Each separator 30 has at least a portion corresponding to the membrane electrode assembly 12 having an uneven cross-sectional shape. Furthermore, each separator 30 makes a convex part contact the membrane electrode assembly 12 and forms a gas flow path part F between the concave part and the membrane electrode assembly 12.
- the fuel cell single cell C has three manifold portions H1 to H3 and H4 to H6 arranged on both sides of the short side. These manifold portions H1 to H6 are formed at the same positions of the frame 20 of the membrane electrode assembly 12 and the separators 30 as the frame manifold portions FH1 to FH6 and the separator manifold portions SH1 to SH6, respectively. When the cells C are configured, they communicate with each other.
- the manifold portions H1 to H3 shown on the left side of FIG. 3 are for discharging the cathode gas (H1), for supplying the coolant (H2), and for supplying the anode gas (H3) from the upper side, and communicate with each other in the stacking direction. Each flow path is formed. Further, the manifold portions H4 to H6 shown on the right side of FIG. 3 are for the anode gas discharge (H4), the coolant discharge (H5), and the cathode gas supply (H6) from the upper side, and communicate with each other in the stacking direction. Thus, the respective flow paths are formed. The positional relationship between supply and discharge of the manifold portions H1 to H6 may be partially or entirely reversed.
- the fuel cell unit cell C is formed by stacking a predetermined number of the fuel cell modules M. At this time, a flow path of coolant (for example, water) is formed between adjacent fuel cell single cells C, and a flow path of coolant is also formed between adjacent fuel cell modules M. Therefore, the seal plate P is disposed between the fuel cell modules M, that is, in the flow path of the coolant.
- the seal plate P is formed separately from the above-described single fuel cell C, and the same manifold portions H1 to H6 as the single fuel cell C are formed.
- FIG. 4 is a plan view for explaining a main part of the fuel cell single cell according to the first embodiment constituting the fuel cell module. That is, FIG. 4 is a plan view of the portion surrounded by the Z line of the single fuel cell shown in FIG. However, the description of the upper separator is omitted. The lower separator is indicated by a broken line.
- FIG. 5 is a cross-sectional view illustrating a main part of the fuel cell single cell according to the first embodiment. That is, FIG. 5 is a cross-sectional view taken along the line VV of the fuel cell single cell shown in FIG. However, a state where two fuel cell single cells are stacked is shown. Further, FIG.
- FIG. 6 is another cross-sectional view for explaining a main part of the fuel cell single cell according to the first embodiment. That is, FIG. 6 is a cross-sectional view taken along line VI-VI of the fuel cell single cell shown in FIG.
- FIG. 7 is still another cross-sectional view for explaining the main part of the fuel cell single cell according to the first embodiment shown in FIG. That is, FIG. 7 is a cross-sectional view taken along line VII-VII of the single fuel cell shown in FIG.
- symbol same as them is attached
- the pair of separators 30 and 30 includes a protruding portion 31 that protrudes toward the membrane electrode assembly 10 with frame and supports the frame 20 in the vicinity of the manifold portion H3.
- the frame 20 includes an extending portion 21 that extends to the manifold portion H3 side from the protruding portion 31.
- the fuel cell single cell C includes a gas circulation part G that supplies gas from the manifold part H3 to the gas flow path part.
- the gas distribution part G is formed from the convex-shaped part 22 provided in the extension part 21.
- the convex portion 22 protrudes on one side of the pair of separators 30 and 30.
- the convex shape part 22 shown in figure has a substantially circular planar shape.
- Such a convex-shaped part 22 can be formed by embossing, for example.
- the convex portion 22 has a shape recessed on the other side of the pair of separators 30 and 30.
- the convex portion 22 is in contact with one separator of the pair of separators 30 and 30.
- the convex portion 22 is provided on a straight line along the gas flow direction with respect to the protruding portion 31.
- the opening end surface 20a of the frame manifold portion FH3 (H3) is provided so as to protrude from the opening end surface 30a of the separator manifold portion SH3 (H3) toward the separator manifold portion SH3 (H3).
- an arrow Y in the figure indicates the gas flow direction, and the separator 30 and the frame 20 are partially sealed by the seal member 40. Further, the anode gas supplied from the manifold portion H3 flows through the gas flow portion G formed between the convex portions 22 as shown in FIG. 7, and further, as shown in FIG. The gas flow path formed between the separator 30 on the side is circulated.
- the gas circulation part is formed from a convex part provided in the extension part. Therefore, even when the frame is deformed, the gas flow path can be secured. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the convex portion is in contact with one separator of the pair of separators. Therefore, the deformation of the frame can be suppressed as compared with the case where the convex portion is not in contact with any of the pair of separators. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the frame manifold opening end face is provided so as to protrude from the separator manifold opening end face toward the separator manifold section.
- the planar shape of the convex portion is substantially circular. Therefore, there is an advantage that it is easy to secure the gas flow path even when the alignment is slightly shifted during the assembly of the single fuel cell. Moreover, since it has a bending part in the position close
- FIG. 8 is a plan view for explaining a main part of a fuel cell single cell according to the second embodiment constituting the fuel cell module. That is, FIG. 8 is a plan view of the same portion as the portion surrounded by the Z line shown in FIG. 3 of the single fuel cell. However, the description of the upper separator is omitted. The lower separator is indicated by a broken line.
- FIG. 9 is sectional drawing explaining the principal part of the fuel cell single cell which concerns on 2nd Embodiment. That is, FIG. 9 is a cross-sectional view along the line IX-IX of the single fuel cell shown in FIG. However, a state where two fuel cell single cells are stacked is shown. Furthermore, FIG.
- FIG. 10 is another cross-sectional view for explaining a main part of the fuel cell single cell according to the second embodiment. That is, FIG. 10 is a cross-sectional view along the line XX of the fuel cell single cell shown in FIG.
- FIG. 11 is still another cross-sectional view for explaining the main part of the fuel cell single cell according to the second embodiment shown in FIG. That is, FIG. 11 is a cross-sectional view along the line XI-XI of the fuel cell single cell shown in FIG.
- symbol same as them is attached
- the convex portion 22 has a linear shape along the gas flow direction Y, unlike the first embodiment. Yes.
- the illustrated convex-shaped portion 22 is a substantially rectangular shape having a planar shape with long sides in the gas flow direction and an end portion reaching the opening end surface.
- Such a convex-shaped part 22 can also be formed by embossing, for example.
- the convex portion 22 has a shape recessed on the other side of the pair of separators 30 and 30.
- the gas circulation part is formed from a convex part provided in the extension part. Therefore, even when the frame is deformed, the gas flow path can be secured. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the convex portion is in contact with one separator of the pair of separators. Therefore, the deformation of the frame can be suppressed as compared with the case where the convex portion is not in contact with any of the pair of separators. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the frame manifold opening end face is provided so as to protrude from the separator manifold opening end face toward the separator manifold section.
- the convex portion has a linear shape along the gas flow direction.
- the planar shape of the convex shape portion is a substantially rectangular shape having long sides in the gas flow direction and the end portion reaching the opening end surface. Therefore, there is an advantage that the frame is not easily deformed and the gas flow path is easily secured. Furthermore, there is an advantage that the gas flow can be easily rectified. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- FIG. 12 is a plan view for explaining a main part of a fuel cell single cell according to the third embodiment constituting the fuel cell module. That is, FIG. 12 is a plan view of the same portion as the portion surrounded by the Z line shown in FIG. 3 of the single fuel cell. However, the description of the upper separator is omitted. The lower separator is indicated by a broken line.
- FIG. 13 is sectional drawing explaining the principal part of the fuel cell single cell which concerns on 3rd Embodiment. That is, FIG. 13 is a cross-sectional view taken along line XIII-XIII of the single fuel cell shown in FIG. However, a state where two fuel cell single cells are stacked is shown. Furthermore, FIG.
- FIG. 14 is another cross-sectional view for explaining a main part of the fuel cell single cell according to the third embodiment. That is, FIG. 14 is a cross-sectional view taken along line XVI-XVI of the fuel cell single cell shown in FIG. The cross-sectional view along the line VV of the fuel cell shown in FIG. 12 is the same as FIG. In addition, about the thing equivalent to what was demonstrated in said embodiment, the code
- the convex portion 22 is in contact with both the pair of separators 30 and 30, which is different from the first embodiment.
- the gas circulation part is formed from a convex part provided in the extension part. Therefore, even when the frame is deformed, the gas flow path can be secured. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the convex portion is in contact with both separators of the pair of separators. Therefore, the deformation of the frame can be suppressed as compared with the case where the convex portion is in contact with one of the pair of separators. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the frame manifold opening end face is provided so as to protrude from the separator manifold opening end face toward the separator manifold section.
- the planar shape of the convex portion is substantially circular. Therefore, there is an advantage that it is easy to secure the gas flow path even when the alignment is slightly shifted during the assembly of the single fuel cell. Moreover, since it has a bending part in the position close
- FIG. 15 is a plan view for explaining a main part of a fuel cell single cell according to the fourth embodiment constituting the fuel cell module. That is, FIG. 15 is a plan view of the same portion as the portion surrounded by the Z line shown in FIG. 3 of the single fuel cell. However, the description of the upper separator is omitted. The lower separator is indicated by a broken line.
- FIG. 16 is a cross-sectional view for explaining a main part of a fuel cell single cell according to the fourth embodiment. That is, FIG. 16 is a cross-sectional view taken along line XVI-XVI of the fuel cell single cell shown in FIG. However, a state where two fuel cell single cells are stacked is shown. Further, FIG.
- FIG. 17 is another cross-sectional view for explaining a main part of the fuel cell single cell according to the fourth embodiment. That is, FIG. 17 is a cross-sectional view taken along the line XVII-XVII of the single fuel cell shown in FIG. Note that the cross-sectional view along the line IX-IX of the fuel cell shown in FIG. 17 is the same as FIG. In addition, about the thing equivalent to what was demonstrated in said embodiment, the code
- the convex portion 22 is in contact with both the pair of separators 30 and 30, which is different from the second embodiment.
- the gas circulation part is formed from a convex part provided in the extension part. Therefore, even when the frame is deformed, the gas flow path can be secured. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the convex portion is in contact with both separators of the pair of separators. Therefore, the deformation of the frame can be suppressed as compared with the case where the convex portion is in contact with one of the pair of separators. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the frame manifold opening end face is provided so as to protrude from the separator manifold opening end face toward the separator manifold section.
- the convex portion has a linear shape along the gas flow direction.
- the planar shape of the convex shape portion is a substantially rectangular shape having long sides in the gas flow direction and the end portion reaching the opening end surface. Therefore, there is an advantage that the frame is not easily deformed and the gas flow path is easily secured. Furthermore, there is an advantage that the gas flow can be easily rectified. As a result, an increase in pressure loss can be suppressed regardless of whether the frame is deformed or not, even when the separator spacing between single cells is small.
- the position where the anode gas is supplied is described as an example of the position where the gas circulation portion formed by the convex portion is provided at a predetermined position of the frame. It is not limited to. That is, the present invention can be applied to a portion where the cathode gas is supplied instead of or in addition to the portion where the anode gas is supplied. Further, in addition to these, it is also possible to apply to a portion where the anode gas is discharged and a portion where the cathode gas is discharged.
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Abstract
Description
図1は、本発明の一実施形態に係る燃料電池スタックを説明する斜視図である。また、図2は、本発明の一実施形態に係る燃料電池スタックを説明する分解状態の斜視図である。さらに、図3Aは、燃料電池単セルを説明する斜視図であり、図3Bは、燃料電池単セルを説明する分解状態の斜視図である。
図8は、燃料電池モジュールを構成する第2の実施形態に係る燃料電池単セルの要部を説明する平面図である。つまり、図8は、燃料電池単セルの図3に示したZ線で囲んだ部分と同じ部分の平面図である。但し、上側のセパレータは記載を省略している。また、下側のセパレータは破線にて示している。また、図9は、第2の実施形態に係る燃料電池単セルの要部を説明する断面図である。つまり、図9は、図8に示した燃料電池単セルのIX-IX線に沿った断面図である。但し、燃料電池単セルが2枚積層された状態を示している。さらに、図10は、第2の実施形態に係る燃料電池単セルの要部を説明する他の断面図である。つまり、図10は、図8に示した燃料電池単セルのX-X線に沿った断面図である。また、図11は、図8に示した第2の実施形態に係る燃料電池単セルの要部を説明するさらに他の断面図である。つまり、図11は、図8に示した燃料電池単セルのXI-XI線に沿った断面図である。なお、上記の実施形態において説明したものと同等のものについては、それらと同一の符号を付して説明を省略する。
図12は、燃料電池モジュールを構成する第3の実施形態に係る燃料電池単セルの要部を説明する平面図である。つまり、図12は、燃料電池単セルの図3に示したZ線で囲んだ部分と同じ部分の平面図である。但し、上側のセパレータは記載を省略している。また、下側のセパレータは破線にて示している。また、図13は、第3の実施形態に係る燃料電池単セルの要部を説明する断面図である。つまり、図13は、図12に示した燃料電池単セルのXIII-XIII線に沿った断面図である。但し、燃料電池単セルが2枚積層された状態を示している。さらに、図14は、第3の実施形態に係る燃料電池単セルの要部を説明する他の断面図である。つまり、図14は、図12に示した燃料電池単セルのXVI-XVI線に沿った断面図である。なお、図12に示した燃料電池のV-V線に沿った断面図は、図5と同一である。なお、上記の実施形態において説明したものと同等のものについては、それらと同一の符号を付して説明を省略する。
図15は、燃料電池モジュールを構成する第4の実施形態に係る燃料電池単セルの要部を説明する平面図である。つまり、図15は、燃料電池単セルの図3に示したZ線で囲んだ部分と同じ部分の平面図である。但し、上側のセパレータは記載を省略している。また、下側のセパレータは破線にて示している。また、図16は、第4の実施形態に係る燃料電池単セルの要部を説明する断面図である。つまり、図16は、図15に示した燃料電池単セルのXVI-XVI線に沿った断面図である。但し、燃料電池単セルが2枚積層された状態を示している。さらに、図17は、第4の実施形態に係る燃料電池単セルの要部を説明する他の断面図である。つまり、図17は、図15に示した燃料電池単セルのXVII-XVII線に沿った断面図である。なお、図17に示した燃料電池のIX-IX線に沿った断面図は、図9と同一である。なお、上記の実施形態において説明したものと同等のものについては、それらと同一の符号を付して説明を省略する。
C 燃料電池単セル
M 燃料電池モジュール
P シールプレート
F ガス流路部
G ガス流通部
H1~H6 マニホールド部
FH1~FH6 フレームマニホールド部
SH1~SH6 セパレータマニホールド部
10 フレーム付き膜電極接合体
12 膜電極接合体
20 フレーム
20a 開口端面
21 延出部
22 凸形状部
30 セパレータ
30a 開口端面
31 突出部
40 シール部材
56A,56B エンドプレート
57A,57B 締結板
58A,58B 補強板
Claims (4)
- 膜電極接合体と前記膜電極接合体を外周から支持するフレームとからなるフレーム付き膜電極接合体と、
前記フレーム付き膜電極接合体の両面に配置された一対のセパレータと、
前記セパレータと前記膜電極接合体との間に形成された、ガスが供給されるガス流路部と、
前記フレームと前記セパレータの積層方向に貫通する穴が形成されたマニホールド部と、
前記一対のセパレータの少なくとも一方のセパレータが前記フレーム付き膜電極接合体側に突出し、前記マニホールド部近傍で前記フレームを支持する突出部と、
前記突出部よりも前記マニホールド部側に延出する前記フレームの延出部と、
前記延出部に形成された、前記マニホールド部から前記ガス流路部に前記ガスを供給するガス流通部と、を備え、
前記ガス流通部が、前記延出部に設けられた凸形状部から形成されている
ことを特徴とする燃料電池の単セル構造。 - 前記凸形状部が、前記ガスの流れ方向に沿って直線状の形状を有していることを特徴とする請求項1に記載の燃料電池の単セル構造。
- 前記凸形状部が、前記突出部に対して、前記ガスの流れ方向に沿った直線上に設けられていることを特徴とする請求項1又は2に記載の燃料電池の単セル構造。
- 前記凸形状部が、前記一対のセパレータの少なくとも一方のセパレータと接触していることを特徴とする請求項1~3のいずれか1つの項に記載の燃料電池の単セル構造。
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EP16890627.9A EP3419091B1 (en) | 2016-02-15 | 2016-10-17 | Unit cell structure for fuel cell |
JP2017567948A JP6656596B2 (ja) | 2016-02-15 | 2016-10-17 | 燃料電池の単セル構造 |
CN201680080905.1A CN108604692B (zh) | 2016-02-15 | 2016-10-17 | 燃料电池的单电池构造 |
CA3014553A CA3014553C (en) | 2016-02-15 | 2016-10-17 | Single cell structure for fuel cell |
KR1020187026353A KR101951163B1 (ko) | 2016-02-15 | 2016-10-17 | 연료 전지의 단셀 구조 |
US16/077,998 US11018351B2 (en) | 2016-02-15 | 2016-10-17 | Single cell structure for fuel cell |
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KR (1) | KR101951163B1 (ja) |
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WO2011114811A1 (ja) * | 2010-03-17 | 2011-09-22 | 日産自動車株式会社 | 燃料電池セル |
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WO2011158551A1 (ja) * | 2010-06-15 | 2011-12-22 | 日産自動車株式会社 | 燃料電池セル |
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US20200028186A1 (en) | 2020-01-23 |
KR20180105250A (ko) | 2018-09-27 |
US11018351B2 (en) | 2021-05-25 |
EP3419091A1 (en) | 2018-12-26 |
CA3014553A1 (en) | 2017-08-24 |
KR101951163B1 (ko) | 2019-02-21 |
CN108604692B (zh) | 2019-11-08 |
EP3419091B1 (en) | 2020-03-18 |
CA3014553C (en) | 2019-02-19 |
JP6656596B2 (ja) | 2020-03-04 |
CN108604692A (zh) | 2018-09-28 |
JPWO2017141490A1 (ja) | 2018-11-08 |
EP3419091A4 (en) | 2019-02-06 |
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