WO2013141079A1 - 燃料電池 - Google Patents
燃料電池 Download PDFInfo
- Publication number
- WO2013141079A1 WO2013141079A1 PCT/JP2013/056790 JP2013056790W WO2013141079A1 WO 2013141079 A1 WO2013141079 A1 WO 2013141079A1 JP 2013056790 W JP2013056790 W JP 2013056790W WO 2013141079 A1 WO2013141079 A1 WO 2013141079A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel cell
- frame
- separator
- membrane electrode
- electrode assembly
- Prior art date
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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
- H01M8/02—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
- H01M8/02—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
- H01M8/0297—Arrangements for joining electrodes, reservoir layers, heat exchange units or bipolar separators to each other
-
- 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
- H01M8/241—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes
- H01M8/242—Grouping of fuel cells, e.g. stacking of fuel cells with solid or matrix-supported electrolytes comprising framed electrodes or intermediary frame-like gaskets
-
- 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
-
- 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 an improvement in a fuel cell such as a polymer electrolyte fuel cell (PEFC).
- a fuel cell such as a polymer electrolyte fuel cell (PEFC).
- PEFC polymer electrolyte fuel cell
- Patent Document 1 As this type of fuel cell, for example, there is one described in Patent Document 1.
- the fuel cell described in Patent Document 1 includes a membrane electrode assembly in which an insulating member is integrated on the outer periphery, and a separator that forms a gas flow path between the membrane electrode assembly.
- This fuel cell has a structure in which the flat portions of the insulating member and the separator are joined together with an adhesive member.
- the present invention has been made paying attention to the above-described conventional problems, and in a fuel cell including a membrane electrode assembly and a separator having a frame on the outer peripheral portion, the sealing performance between the frame and the separator can be improved. It aims at providing the fuel cell which can be performed.
- the fuel cell according to the present invention includes a membrane electrode assembly having a frame on the outer periphery, and separators disposed on both sides of the frame and the membrane electrode assembly.
- a ridge portion and a groove portion into which the top portion of the ridge portion enters are relatively formed in opposite portions of the frame and the separator, and the top portion of the ridge portion is immersed in the adhesive injected into the groove portion.
- the groove portion and the ridge portion are bonded to each other in the state, and the above configuration is used as means for solving the conventional problems.
- the sealing performance between the frame and the separator can be greatly enhanced.
- FIGS. 1 and 2 are diagrams for explaining an embodiment of a fuel cell and a fuel cell stack according to the present invention.
- the fuel cell FC shown in FIGS. 1 and 2 includes a membrane electrode assembly 2 having a frame 1 on the outer periphery, and separators 3 and 3 disposed on both sides of the frame 1 and the membrane electrode assembly 2.
- 1 is a cross-sectional view based on the line AA in FIG.
- the membrane electrode assembly 2 is generally called MEA (Membrane Electrode Assembly), and an electrolyte layer made of a solid polymer, for example, is sandwiched between a cathode layer (air electrode layer) and an anode layer (fuel electrode layer). It has a structure. Although not shown, the cathode layer and the anode layer have a structure in which a catalyst layer and an appropriate number of gas diffusion layers are laminated.
- MEA Membrane Electrode Assembly
- the frame 1 is made of resin and is integrally formed on the outer peripheral portion of the membrane electrode assembly 2 by injection molding or the like.
- the frame 1 has a rectangular shape with the membrane electrode assembly 2 in the center.
- the frame 1 has three manifold holes (not shown) arranged at both ends, and a region from each manifold hole group to the membrane electrode assembly 2 serves as a reaction gas flow region.
- Each separator 3 is made of stainless steel as a more preferred embodiment, and has a rectangular shape corresponding to the frame 1 and the membrane electrode assembly 2.
- Each separator 3 has a central portion corresponding to the membrane electrode assembly 2 formed in a wave shape in a cross section in the short side direction. This wave shape is continuous in the long side direction as shown in the figure.
- each separator 3 has a corrugated convex portion in contact with the membrane electrode assembly 2 at the central portion corresponding to the membrane electrode assembly 2, and a cathode gas (air) and an anode gas (hydrogen) in the corrugated concave portion. Gas) gas flow paths are respectively formed. Further, as shown in FIG. 2, each separator 3 has manifold holes H1 to H6 communicating with the manifold holes of the frame 1 at both ends.
- the manifold holes H1 to H3 on one side shown on the left side of FIG. 2 are for cathode gas supply (H1), coolant supply (H2) and anode gas discharge (H3), and communicate with each other in the stacking direction.
- the flow path is formed.
- the other manifold holes H4 to H6 shown on the right side of FIG. 2 are for anode gas supply (H4), coolant discharge (H5) and cathode gas discharge (H6), and communicate with each other in the stacking direction.
- H4 to H4 shown on the right side of FIG. 2 are for anode gas supply (H4), coolant discharge (H5) and cathode gas discharge (H6), and communicate with each other in the stacking direction.
- the positional relationship between these supply and discharge can be selected as appropriate.
- gas seals are provided between the edges of the frame 1 and each separator 3 and around the manifold holes H1 to H6. Further, in a state where a plurality of fuel cells FC are stacked, a gas seal is also provided between the fuel cells FC, that is, between the adjacent separators 3. In this embodiment, the coolant is circulated between the adjacent separators 3.
- the gas seal described above separates the circulation regions of the cathode gas, the anode gas, and the coolant between the individual layers, and at the periphery of the manifold holes H1 to H6 so that a predetermined fluid flows between the layers. Openings are made at appropriate locations in the section.
- a plurality of fuel cells FC having the above-described configuration are stacked to form a fuel cell stack FS as shown in FIG.
- the fuel cell stack FS has a current collector plate 4A and a spacer 5 at one end (the right end in FIG. 3) in the stacking direction with respect to the stack S of the fuel cells FC.
- An end plate 6A is provided via
- the end plate 6B is provided also in the other end part of the lamination direction via the current collecting plate 4B.
- the fuel cell stack FS is provided with fastening plates 7A and 7B on both sides (upper and lower surfaces in FIG. 3) on the long side of the fuel cell FC with respect to the stack S, and on the short side. Reinforcing plates 8A and 8B are provided on both sides.
- the fastening plates 7A and 7B and the reinforcing plates 8A and 8B are connected to both end plates 6A and 6B by bolts B.
- the fuel cell stack FS has a case-integrated structure as shown in FIG. 3 (B), and the stack S is restrained and pressurized in the stacking direction so that each fuel cell FC has a predetermined contact surface pressure. In order to maintain good gas sealing properties and conductivity.
- the fuel cell FC of the present invention includes the membrane electrode assembly 2 having the frame 1 and the separators 3 and 3 as described above, and a ridge portion and a ridge at opposite portions of the frame 1 and the separator 3.
- a groove part into which the top part of the part enters is formed relatively, and an adhesive is injected into the groove part to bond the groove part and the protrusion part.
- This seal configuration is provided along the gas seal provided between the frame 1 and the edge of each separator 3 described above.
- the groove 1G is formed in the frame 1 and the protrusion 3R is formed in the separator 3 at the opposing portions of the frame 1 and the separator 3.
- an inward (downward in FIG. 1) recess 3A is formed in the separator 3, and a protrusion 3R is formed at the center of the bottom of the recess 3A.
- the groove 1G of the frame 1 and the recess 3A of the separator 3 have substantially equal width dimensions.
- the groove 1G of the frame 1 can be provided at the same time when the frame 1 is injection molded. Further, the protrusion 3R and the recess 3A of the separator 3 can be provided at the same time when the separator 3 is formed by press working or the like.
- the fuel cell FC injects the adhesive 10 into the groove 1G of the frame 1 and makes the groove 1G and the protrusion 3R be in a state where the top of the protrusion 3R of the separator 3 is immersed in the adhesive 10.
- the frame 1 and the separator 3 are bonded together.
- a space 11 that is hermetically partitioned by the adhesive 10 is formed between the frame 1 and the separator 3 at least on the protrusion 3R side of the membrane electrode assembly 2 side. In the illustrated example, spaces 11 are formed on both sides of the ridge 3R.
- the fuel cell FC and the fuel cell stack FS having the above-described configuration bond the groove 1G and the protrusion 3R with the top of the protrusion 3A immersed in the adhesive 10 injected into the groove 1G.
- the interface between the both is complicated. Thereby, the fuel cell FC can greatly enhance the sealing performance between the frame 1 and the separator 3.
- the space 11 that is hermetically partitioned by the adhesive 10 is formed between the frame 1 and the separator 3 on the membrane electrode assembly 2 side of the protrusion 3R.
- the nature is further enhanced. That is, in the fuel cell FC, when the reaction gas enters between the frame 1 and the separator 3 from the power generation region (region of the membrane electrode assembly 2) indicated by an arrow in FIG. It flows into the space 11. As a result, the gas pressure acts on the surface of the adhesive 10, and the so-called self-seal function in which the adhesive 10 is pressurized by the gas pressure works, and the reaction gas leaks from the adhesive 10 to the outside. Stop completely.
- the adhesive 10 may be provided in the groove 1G, the operation of injecting the adhesive 10 becomes very easy, and the adhesive 10 flows out to other parts. Since there is no worry, the adhesive 10 having a low viscosity can be used. As a result, it is possible to improve productivity and reduce costs.
- the protrusion 1R is formed on the frame 1
- the groove 3G is formed on the separator 3
- the top of the protrusion 1R is immersed in the adhesive 10 injected into the groove 3G.
- the groove 3G and the protrusion 1R are bonded together. Also, spaces 11 that are hermetically partitioned by the adhesive 10 are formed on both sides of the ridge 1R.
- the configuration of the fuel cell according to the present invention is not limited to the above embodiments, and details of each configuration can be appropriately changed without departing from the gist of the present invention. Moreover, in each embodiment shown in FIG.1 and FIG.4, although the structure which provided the protrusion part and the groove part relatively in the flame
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- 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
FS 燃料電池スタック
1 フレーム
1G 溝部
1R 突条部
2 膜電極接合体
3 セパレータ
3R 突条部
3G 溝部
10 接着剤
11 空間
Claims (5)
- 外周部にフレームを有する膜電極接合体と、
フレーム及び膜電極接合体の両面側に配置されるセパレータを備え、
フレーム及びセパレータの相対向部分に、突条部と、突条部の頂部が入り込む溝部を相対的に形成すると共に、溝部に注入した接着剤に突条部の頂部を没入状態にして溝部と突条部を接着したことを特徴とする燃料電池。 - フレームとセパレータとの間において、突条部の少なくとも膜電極接合体側に、接着剤により気密的に仕切られた空間を形成したことを特徴とする請求項1に記載の燃料電池。
- フレームに溝部を形成すると共に、セパレータに突条部を形成したことを特徴とする請求項1又は2に記載の燃料電池。
- フレームに突条部を形成すると共に、セパレータに溝部を形成したことを特徴とする請求項1又は2に記載の燃料電池。
- 請求項1~4のいずれか1項に記載の燃料電池を複数枚積層して成ることを特徴とする燃料電池スタック。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13764459.7A EP2830130B1 (en) | 2012-03-21 | 2013-03-12 | Fuel cell |
US14/384,563 US9318753B2 (en) | 2012-03-21 | 2013-03-12 | Fuel cell |
JP2014506151A JP5773232B2 (ja) | 2012-03-21 | 2013-03-12 | 燃料電池 |
CN201380014064.0A CN104205450B (zh) | 2012-03-21 | 2013-03-12 | 燃料电池 |
CA2861978A CA2861978C (en) | 2012-03-21 | 2013-03-12 | Fuel cell with sealing structure between the frame and separator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012063075 | 2012-03-21 | ||
JP2012-063075 | 2012-03-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013141079A1 true WO2013141079A1 (ja) | 2013-09-26 |
Family
ID=49222539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2013/056790 WO2013141079A1 (ja) | 2012-03-21 | 2013-03-12 | 燃料電池 |
Country Status (6)
Country | Link |
---|---|
US (1) | US9318753B2 (ja) |
EP (1) | EP2830130B1 (ja) |
JP (1) | JP5773232B2 (ja) |
CN (1) | CN104205450B (ja) |
CA (1) | CA2861978C (ja) |
WO (1) | WO2013141079A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015207451A (ja) * | 2014-04-21 | 2015-11-19 | トヨタ自動車株式会社 | 燃料電池 |
JP2015207505A (ja) * | 2014-04-23 | 2015-11-19 | トヨタ自動車株式会社 | 燃料電池 |
JP2016004739A (ja) * | 2014-06-19 | 2016-01-12 | トヨタ自動車株式会社 | 燃料電池 |
JP2019102276A (ja) * | 2017-12-01 | 2019-06-24 | トヨタ自動車株式会社 | 燃料電池セル |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2985885C (en) * | 2015-05-13 | 2019-07-30 | Nissan Motor Co., Ltd. | Fuel cell stack |
JP7196773B2 (ja) * | 2019-05-31 | 2022-12-27 | トヨタ自動車株式会社 | 燃料電池 |
Citations (8)
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JP2003007328A (ja) * | 2001-06-20 | 2003-01-10 | Nok Corp | 燃料電池用構成部品 |
JP2003077499A (ja) * | 2001-06-18 | 2003-03-14 | Toyota Motor Corp | 燃料電池 |
JP2006019204A (ja) * | 2004-07-05 | 2006-01-19 | Toyota Motor Corp | 2部材の接合構造および燃料電池 |
JP2007035296A (ja) * | 2005-07-22 | 2007-02-08 | Nissan Motor Co Ltd | 電解質膜/電極積層体および燃料電池セル |
WO2007105740A1 (ja) * | 2006-03-08 | 2007-09-20 | Toyota Jidosha Kabushiki Kaisha | セル積層体およびこれを備えた燃料電池 |
JP2007294248A (ja) * | 2006-04-25 | 2007-11-08 | Toyota Motor Corp | 燃料電池およびそのセパレータ |
JP2010123377A (ja) | 2008-11-19 | 2010-06-03 | Nissan Motor Co Ltd | 燃料電池スタック |
JP2010129342A (ja) * | 2008-11-27 | 2010-06-10 | Nissan Motor Co Ltd | 燃料電池及び燃料電池スタック製造方法 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5077290B2 (ja) * | 2009-05-25 | 2012-11-21 | 日産自動車株式会社 | 燃料電池モジュール及びその製造方法 |
-
2013
- 2013-03-12 EP EP13764459.7A patent/EP2830130B1/en not_active Not-in-force
- 2013-03-12 CN CN201380014064.0A patent/CN104205450B/zh not_active Expired - Fee Related
- 2013-03-12 JP JP2014506151A patent/JP5773232B2/ja not_active Expired - Fee Related
- 2013-03-12 WO PCT/JP2013/056790 patent/WO2013141079A1/ja active Application Filing
- 2013-03-12 CA CA2861978A patent/CA2861978C/en active Active
- 2013-03-12 US US14/384,563 patent/US9318753B2/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2003077499A (ja) * | 2001-06-18 | 2003-03-14 | Toyota Motor Corp | 燃料電池 |
JP2003007328A (ja) * | 2001-06-20 | 2003-01-10 | Nok Corp | 燃料電池用構成部品 |
JP2006019204A (ja) * | 2004-07-05 | 2006-01-19 | Toyota Motor Corp | 2部材の接合構造および燃料電池 |
JP2007035296A (ja) * | 2005-07-22 | 2007-02-08 | Nissan Motor Co Ltd | 電解質膜/電極積層体および燃料電池セル |
WO2007105740A1 (ja) * | 2006-03-08 | 2007-09-20 | Toyota Jidosha Kabushiki Kaisha | セル積層体およびこれを備えた燃料電池 |
JP2007294248A (ja) * | 2006-04-25 | 2007-11-08 | Toyota Motor Corp | 燃料電池およびそのセパレータ |
JP2010123377A (ja) | 2008-11-19 | 2010-06-03 | Nissan Motor Co Ltd | 燃料電池スタック |
JP2010129342A (ja) * | 2008-11-27 | 2010-06-10 | Nissan Motor Co Ltd | 燃料電池及び燃料電池スタック製造方法 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015207451A (ja) * | 2014-04-21 | 2015-11-19 | トヨタ自動車株式会社 | 燃料電池 |
US9966614B2 (en) | 2014-04-21 | 2018-05-08 | Toyota Jidosha Kabushiki Kaisha | Fuel cell |
JP2015207505A (ja) * | 2014-04-23 | 2015-11-19 | トヨタ自動車株式会社 | 燃料電池 |
JP2016004739A (ja) * | 2014-06-19 | 2016-01-12 | トヨタ自動車株式会社 | 燃料電池 |
JP2019102276A (ja) * | 2017-12-01 | 2019-06-24 | トヨタ自動車株式会社 | 燃料電池セル |
Also Published As
Publication number | Publication date |
---|---|
JP5773232B2 (ja) | 2015-09-02 |
CN104205450B (zh) | 2018-01-26 |
US20150086899A1 (en) | 2015-03-26 |
JPWO2013141079A1 (ja) | 2015-08-03 |
US9318753B2 (en) | 2016-04-19 |
EP2830130A1 (en) | 2015-01-28 |
CA2861978A1 (en) | 2013-09-26 |
CN104205450A (zh) | 2014-12-10 |
EP2830130B1 (en) | 2017-09-06 |
CA2861978C (en) | 2017-06-20 |
EP2830130A4 (en) | 2015-03-25 |
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