WO2002025765A2 - Elektrochemischer zellenstapel - Google Patents
Elektrochemischer zellenstapel Download PDFInfo
- Publication number
- WO2002025765A2 WO2002025765A2 PCT/DE2001/003657 DE0103657W WO0225765A2 WO 2002025765 A2 WO2002025765 A2 WO 2002025765A2 DE 0103657 W DE0103657 W DE 0103657W WO 0225765 A2 WO0225765 A2 WO 0225765A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- separator plate
- cell stack
- electrochemical cell
- separator
- stack according
- Prior art date
Links
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
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
- H01M8/0254—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form corrugated or undulated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
- C25B9/77—Assemblies comprising two or more cells of the filter-press type having diaphragms
-
- 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
- H01M8/0247—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form
-
- 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
- H01M8/0258—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
- H01M8/0263—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant having meandering or serpentine paths
-
- 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
-
- 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
- H01M8/2465—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
- H01M8/02—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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
-
- 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 invention relates to an electrochemical cell stack, in particular a PEM or D FC fuel cell stack or an electrolytic cell stack, according to the preamble of patent claim 1.
- Electrolysis cells are electrochemical units that contain chemical substances, e.g. Generate hydrogen and oxygen on the catalytic surfaces of electrodes by supplying electrical energy.
- Fuel cells are electrochemical units that generate electrical energy by converting chemical energy onto catalytic surfaces of electrodes.
- Main types of electrochemical cells include:
- the cathode comprises at least one electrode support layer, which serves as a support for the catalyst.
- anode electrode on which the oxidation reaction takes place through the release of electrons.
- the anode consists of at least one support layer and catalyst layer.
- a matrix which is arranged between the cathode and anode and serves as a carrier for the electrolyte.
- the electrolyte can be in the solid or liquid phase and as a gel.
- the solid phase electrolyte is advantageously incorporated into a matrix, so that a so-called solid electrolyte is formed.
- MEA membrane electrode assemblies
- a separator plate which is arranged between the MEAs and serves to collect reactants and oxidants in electrochemical cells.
- an electrolysis stack or fuel cell stack is created, hereinafter also referred to as a stack.
- the electrical current is routed from cell to cell in a series circuit.
- the fluid management of the oxidants and reactants takes place via collecting and distribution channels to the individual cells.
- the cells of a stack are e.g. supplied with the reactant and oxidant fluid in parallel by means of at least one distributor channel for each fluid.
- the reaction products as well as excess reactant and oxidant fluid are led out of the cells out of the stack by means of at least one collecting channel.
- a fuel cell stack for molten carbonate fuel cells (MCFC, molten carbonate fuel cell) is disclosed. These fuel cells can only be used in the high temperature range (approx. 650 ° C).
- a separator plate for fluid distribution is also disclosed. The separator plate is produced by embossing a flat plate and has a surface structure for distributing the oxidant on one side and a negative surface on the other side. Chen structure for distribution of the reactant.
- the MEA is arranged between the separator plates, the electrolyte contained in the MEA being made relatively thick compared to comparable fuel cell stacks. Due to this very stable structure of the MEA, the so-called egg carton effect is avoided.
- the egg carton effect is understood to mean the effect in which two identically structured plates fall into one another in a form-fitting manner when they are stacked on top of one another.
- the high cell thickness of the fuel cells is disadvantageous due to the relatively large thickness of the MEAs.
- the object of the invention is to provide an electrochemical cell stack in a compact design with a small cell thickness, in which the intermediate MEAs are not destroyed by the egg carton effect by stacking the separator plates.
- the separator plates when the separator plates are stacked, a surface structure of a separator plate is opposite to a negatively corresponding surface structure of the adjacent separator plate.
- the structured separator plates do not fall into each other when stacked, but support each other in such a way that a flat MEA arranged in between is neither deformed nor destroyed.
- destruction of the MEA by the egg carton effect is prevented when stacked.
- Another advantage of the electrochemical cell stack according to the invention is the significantly reduced cell thickness and, associated with this, a more compact design.
- an improved volume-related power density is achieved with the electrochemical cell stack according to the invention, which leads to lower production costs of the cell stack according to the invention.
- Such a membrane electrode assembly comprises: a membrane, for example a polymer membrane, with a thickness in the range from 10 to 200 ⁇ m,
- a catalyst layer applied to both sides of the MEA e.g. Carbonca with a thickness in the range of 5-15 ⁇ m
- a gas diffusion structure applied to the catalyst layer e.g. porous graphite paper with a thickness in the range of 50-500 ⁇ m.
- the areal extension of an MEA is usually based on the size of the separator plate, in particular the MEA completely covers the separator plate.
- the electrode built up from the catalyst layer and the gas diffusion layer serves as a cathode on one side of the MEA and as an a-node on the other side of the MEA.
- the cell thickness and thus the production costs of the cell stack can be significantly reduced.
- the separator plates are preferably made from conductive materials such as metals (e.g. steel or aluminum), conductive plastics, carbon or compounds.
- the separator plates are manufactured in particular with the help of mechanical forming techniques, e.g. Roll embossing, magnetic forming, rubber case embossing, gas or liquid pressure embossing, or hollow embossing. The manufacturing costs can thus be reduced.
- the wall thickness of a separator plate is usually between 0.1 mm and 0.5 mm.
- the area of the separator plate to be embossed depends on the area of application in which the electrochemical cell stack is used.
- an active channel region which is usually arranged centrally on the separator plate and in which the fluid comes into contact with the MEA; - Breakthroughs for the ports, which serve to feed and discharge the reactant and oxidant fluids into the separator plate;
- the electrode built up from the catalyst layer and the gas diffusion layer is advantageously applied to the membrane in the region of the active channel region of the separator plate. However, it is also possible that this electrode is also applied to the membrane in the area of the distributor area of the separator plate. This results in a larger active catalytic surface, which results in a greater volume-related power density of the cell stack according to the invention. However, it is also possible for the electrode built up from the catalyst layer and the gas diffusion layer to cover the entire area of the MEA.
- the distributor area of the separator plates has a knob structure.
- a good and homogeneous distribution of the fluids is achieved by means of the essentially circular knobs. This results in an even flow through the active channel area.
- the maximum height of the knobs advantageously corresponds to the maximum height of the channel structure of the active channel area.
- the distributor areas of the separator plate can form a separate component, for example a further plate.
- This component can advantageously have a knob structure.
- the separate component can consist, for example, of a metal, a polymer, a polymer-metal composite material or a ceramic.
- the connection of the separate component to the separator plate can be carried out using conventional connection techniques, for example welding, gluing, soldering or bending.
- An advantage of the separate component is to integrate other distributor structures in the separator plate, so that an improved distribution of the fluids can be achieved.
- the separator plate advantageously has sealing areas on both sides.
- sealing areas In addition to sealing the separator plates to one another and to the outside, these sealing areas also serve to seal individual areas on a separator plate, for example the sealing of adjacent ports.
- the sealing areas are characterized by channel-like depressions which are filled with sealing bodies.
- the depressions are arranged in such a way that the sealing bodies, one above the other, separated by the separator plate.
- the height of the sealing body is preferably greater than the maximum height of the channel-like depressions. A good sealing effect is thus achieved when the separator plates are stacked.
- the sealing areas it is also possible for the sealing areas to be formed by other sealing techniques, for example crimping with an intermediate insulation layer or casting with hardening substances, for example polymers.
- the force exerted on the sealing bodies advantageously runs essentially perpendicular to the separator plate and perpendicular to the sealing bodies. This avoids shear and shear stresses within the sealing body, which on the one hand results in a longer service life of the sealing body and on the other hand results in a better sealing effect. It also prevents the MEA from being destroyed.
- the separator plate has, in particular in the port areas, channel-shaped depressions. Due to the flow guidance on the sides of the separator plate, each of the ports is completely sealed on one of the two sides of the separator plate, for example with a seal surrounding the port.
- These channel-like depressions are designed such that a channel-like guide is formed on one side, in which a sealing body can be inserted. On the other side facing away from the seal, this corresponding elevation serves as a support point for the MEA.
- the height of the depression should correspond to the maximum height of the depressions in the active channel area and distribution area. The advantage of these support points is that the MEA is not destroyed when the separator plates are stacked.
- the sealing bodies can in particular be detachable seals, for example an O-ring or polymer compound, so that the separator plate remains reusable, for example after the seals have been replaced. It is also possible for the sealing bodies to be applied to the MEA as a sealing bead. This means that the MEAs can be replaced quickly.
- a homogeneous temperature distribution can be achieved with the separator plate in the electrochemical cell stack according to the invention. This avoids the formation of “hot spots” (areas of high temperature) which destroy the MEA.
- the cell stack according to the invention can be used up to a temperature of 150 ° C.
- One area of application of the fuel cell stack according to the invention is energy supply in mobile systems, e.g. Motor vehicle, rail vehicles, airplanes. Another possible application of the fuel cell stack according to the invention is the use in electronic devices for energy supply. In addition, the fuel cell stack according to the invention can also be used as an independent energy generation module.
- FIG. 1 shows the structure of the electrochemical cell stack according to the invention for an overview and explanation of the overall structure
- FIG. 2 shows a section through a fuel cell stack according to the invention in the region of the active channel region
- 3 shows a section through a fuel cell stack according to the invention in the area of the distributor area
- 4 shows in detail the port area, the active channel area, the distributor area and the sealing area in a first embodiment of a separator plate in a fuel cell stack according to the invention
- FIG. 5 shows in detail a second embodiment of a separator plate with a serpentine channel structure of the active channel area.
- FIG. 1 shows in the left-hand illustration a fuel cell stack 1 according to the invention, which is alternately constructed from separator plates 2 and 2a and membrane electrode assemblies 3 (MEA).
- the right figure shows the structure of a separator plate 2 of the stack.
- the separator plates 2 and 2a denote adjacent plates, the opposite sides of the two plates having a positive and a correspondingly negative structure.
- an MEA 3 located between a separator plate 2 and a separator plate 2a is not damaged.
- the stack 1 also has end plates 4 which allow the fuel cell stack 1 to be braced.
- two lines 5, 6 are provided for fluid supply and fluid discharge of the reaction gases.
- the plates 9 made of electrically conductive material are used for power consumption. However, the current draw can also take place directly via the separator plates 2.
- the reactant is passed over one side of the separator plate 2 and the oxidant over the back.
- the separator plate 2, 2a with surfaces structured on both sides has four openings (ports) 10 for the lines 5, 6 for fluid supply and discharge. Furthermore, a structure for the active channel region 11 is present on both sides of the separator plate 2, 2a. A distributor region 12 is provided for distributing the fluids from the ports 10 to the active channel region 11. The two fluids, reactant and oxidant, are sealed to the outside and to one another by seals 13.
- FIG. 2 shows in a section through a fuel cell stack according to the invention the area of the active channel area 11 in an exploded view according to FIG the section AA in FIG. 4.
- the fuel cell stack 1 which is alternately composed of structured separator plates 2 and 2a and intermediate MEAs 3, is delimited by end plates 4.
- the active channel area 11 of a separator plate 2, 2a is characterized by channel-like reshaping that follows one another directly. These reshaping can be rectangular or undulating, for example.
- the anode 15 is arranged on one side of the MEA 4 and the cathode 16 on the back of the MEA 3.
- the area of the anode 15 and the area of the cathode 16 can also be extended to the sealing area 14 (not shown).
- the porous electrode layer is impregnated in the sealing area 14, which prevents cross-flow of the fluids.
- the MEA 3 arranged between a separator plate 2 and a separator plate 2a rests on one side on the surface structure of the separator plate 2 and on the back on the corresponding negative surface structure of the adjacent separator plate 2a. This ensures that, on the one hand, the stacking of the separator plates 2 and 2a does not destroy the intermediate MEA 3. On the other hand, the stacking forms cavities 21 in which the oxidant is guided on one side of the MEA 3 and the reactant on the back of the MEA 3.
- the active channel area 11 is delimited by a sealing area 14 at the edges of the separator plates 2, 2a.
- the sealing area 14, which is shown enlarged in the upper section in FIG. 2, is characterized by two adjacent deformations. These deformations are carried out on both surfaces of the separator plate 2, 2a up to a maximum height. This maximum height is predetermined by the height of the active channel area 11 and the distribution area 12. A region is formed between these two deformations, in which a sealing body 13 can be inserted on both sides of the separator plate 2, 2a.
- the sealing structure of an adjacent separator plate 2, 2a has one Sealing area 14 with corresponding negatively corresponding deformations, so that the intermediate MEA 3 is not destroyed when the separator plates 2 and 2a are stacked.
- the intermediate MEA 3 is fixed on the one hand with the aid of the sealing body 13 and, on the other hand, the active channel region 11 is sealed off from the outside.
- the end plates 4, corresponding to the respectively adjacent separator plate 2 or 2a, have negatively corresponding deformations. These deformations are expediently carried out exclusively on the surface of the end plate 4 facing the inside of the stack.
- FIG. 3 shows an exploded view of a section through a fuel cell stack according to the invention in accordance with section B-B in FIG. 4, the distributor area 12 with an adjacent sealing area 14.
- the structure of the sealing area 14 corresponds to the structure of the sealing area 14 in FIG. 2.
- the distributor area 12 is characterized by essentially circular shapes (knobs) which are arranged on both sides of the separator plate 2, 2a.
- the height of the knobs corresponds to the maximum height of the channel structure of the active channel area. The distances between the knobs depends on the amount of the fluid to be passed through the distributor area 12. A homogeneous distribution of the fluids to the active channel region 11 is achieved by means of the knobs.
- FIG 4 shows, by way of example, in a first embodiment of a separator plate 2, 2a in detail the port area 10, the active channel area 11, the distributor areas 12 and the sealing area 14.
- the separator plate 2 two openings for the ports 10a and the ports 10b are made opposite each other.
- the ports 10a are used for the fluid supply and the ports 10b for the fluid discharge.
- Egg- One of the two ports 10a for fluid supply supplies the channel system (distributor area 12 and active channel area 11) on one side of the separator plate 2, whereas the other of the two ports 10a supplies the channel system on the rear side of the separator plate 2.
- Section A-A shows the active channel area 11 with the adjacent sealing area 14.
- the active channel region 14 is characterized by an alternating surface structure, a depression on one surface of the separator plate corresponding to an elevation on the back of the separator plate.
- the distributor area 12 with the adjacent sealing area 14 is shown in section BB.
- Crosspieces are arranged between the deformations (knobs) of a surface of the separator plate.
- the distributor area 12 is characterized by an essentially regular arrangement of deformations, adjacent deformations pointing in opposite directions (top, bottom).
- the maximum height of the knobs corresponds to the maximum height of the channel structure of the active channel area 11.
- the sealing area 14, which delimits the ports 10a, 10b, is shown in section C-C.
- the sealing area 14 is characterized by guides that lie opposite one another on both sides of the separator plate. A sealing body can be inserted on both sides of these guides. This ensures that when the separator plates are stacked, the force exerted on the separator plate and the sealing bodies runs perpendicular to the separator plate and the sealing bodies.
- the guides are limited on both surfaces by reshaping the separator plate, which fixes the sealing body. The height of the reshaping corresponds to the maximum height of the channel structure of the active channel area 11 and the distributor area 12.
- the two ports 10a and the two ports 10b are sealed off from one another on both sides of the separator plate.
- one of the two ports 10a is in flow connection with one of the two ports 10b.
- the other ports 10a and 10b are through on this side of the separator plate Seal body fully sealed.
- these ports 10a and 10b - these ports are sealed on the opposite side of the separator plate - are in flow connection.
- the other ports 10a and 10b on this side of the separator plate are completely sealed by sealing bodies.
- Each port 10a, 10b is thus sealed on exactly one side of the separator plate.
- support points 24 On the other side of the separator plate facing away from the seal there are support points 24 which prevent the MEA from being pressed in. Pressing in the MEA means a narrowing of the flow cross-section in the channel structure, which can lead to an uneven distribution of the fluids.
- These support points 24 are shown in section D-D and section E-E by way of example for one of the two ports 10a.
- Section D-D shows that in the port area 10 the support points 24 are only present on the lower side of the separator plate.
- Section E-E shows the detailed course of the guide for the sealing body on the upper surface of the separator plate.
- Section F-F and section G-G show the course of the support points 24 for the other of the two ports 10a.
- the transformations carried out are negatively corresponding to the transformations in section D-D and section E-E.
- FIG. 5 shows a further embodiment of a separator plate 2.
- the active channel region 11 is designed in a serpentine shape.
- the ports 10 for the fluid supply and fluid discharge are arranged at two opposite corners of the separator plate 2.
- the ports 10 are sealed off from one another in accordance with the explanations as explained in FIG. 4.
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002422926A CA2422926A1 (en) | 2000-09-23 | 2001-09-21 | Fuel cell stack |
US10/380,503 US20040038102A1 (en) | 2000-09-23 | 2001-09-21 | Fuel cell stack |
JP2002528870A JP2004527872A (ja) | 2000-09-23 | 2001-09-21 | 電気化学的なセルスタック |
AU2002216900A AU2002216900A1 (en) | 2000-09-23 | 2001-09-21 | Fuel cell stack |
EP01985304A EP1328995A2 (de) | 2000-09-23 | 2001-09-21 | Elektrochemischer zellenstapel |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10047248A DE10047248A1 (de) | 2000-09-23 | 2000-09-23 | Elektrochemischer Zellenstapel |
DE10047248.6 | 2000-09-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2002025765A2 true WO2002025765A2 (de) | 2002-03-28 |
WO2002025765A3 WO2002025765A3 (de) | 2003-01-03 |
Family
ID=7657410
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2001/003657 WO2002025765A2 (de) | 2000-09-23 | 2001-09-21 | Elektrochemischer zellenstapel |
Country Status (7)
Country | Link |
---|---|
US (1) | US20040038102A1 (de) |
EP (1) | EP1328995A2 (de) |
JP (1) | JP2004527872A (de) |
AU (1) | AU2002216900A1 (de) |
CA (1) | CA2422926A1 (de) |
DE (1) | DE10047248A1 (de) |
WO (1) | WO2002025765A2 (de) |
Cited By (3)
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WO2004021492A1 (en) * | 2002-08-28 | 2004-03-11 | Honda Giken Kogyo Kabushiki Kaisha | Bipolar plates assembly for a fuel cell |
EP1755185A1 (de) * | 2005-08-17 | 2007-02-21 | Institute of Nuclear Energy Research | Verbesserung der Einheitlichkeit der Fluidströmung an Kontakplatten flacher oxidkeramischer Brennstoffzellen |
WO2020200732A1 (de) * | 2019-03-29 | 2020-10-08 | Daimler Ag | Separatorplatte für eine brennstoffzelle |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10117572B4 (de) * | 2001-04-07 | 2005-10-13 | Ballard Power Systems Inc., Burnaby | Elektrochemischer Zellenstapel |
DE10234821B4 (de) * | 2002-07-31 | 2006-10-12 | Daimlerchrysler Ag | Elektrochemische Zelle |
DE10236997B4 (de) * | 2002-08-13 | 2006-09-14 | Daimlerchrysler Ag | Elektrochemischer Zellenstapel |
DE10236998B4 (de) * | 2002-08-13 | 2008-01-31 | Daimler Ag | Elektrochemische Zelle |
DE10307278B4 (de) * | 2003-02-20 | 2008-03-27 | Staxera Gmbh | Brennstoffzellenstapel |
EP1665445A1 (de) * | 2003-08-15 | 2006-06-07 | Hydrogenics Corporation | Endplatte für einen elektrochemischen zellenstapel |
JP4621970B2 (ja) * | 2004-07-29 | 2011-02-02 | 東海ゴム工業株式会社 | 固体高分子型燃料電池用セパレータおよびそれを用いた固体高分子型燃料電池用セル |
KR100637490B1 (ko) * | 2004-09-17 | 2006-10-20 | 삼성에스디아이 주식회사 | 연료 전지용 스택과 이를 갖는 연료 전지 시스템 |
US7569303B2 (en) | 2004-09-24 | 2009-08-04 | Hydrogenics Corporation | Membrane electrode assembly with modified catalyst layout |
JP4917755B2 (ja) * | 2005-03-08 | 2012-04-18 | 本田技研工業株式会社 | 燃料電池 |
US20080261095A1 (en) * | 2005-06-20 | 2008-10-23 | Masaki Yamauchi | Membrane-Electrode Assembly, Method for Manufacturing the Same, and Fuel Cell |
DE102005057044B4 (de) * | 2005-11-30 | 2009-04-09 | Daimler Ag | Bipolarplatte und deren Verwendung |
DE102005057045B4 (de) | 2005-11-30 | 2015-06-03 | Daimler Ag | Bipolarplatte und deren Verwendung in einer Brennstoffzelleneinheit |
US20070184329A1 (en) * | 2006-02-07 | 2007-08-09 | Hongsun Kim | Liquid feed fuel cell with orientation-independent fuel delivery capability |
JP5026708B2 (ja) * | 2006-02-09 | 2012-09-19 | 東海ゴム工業株式会社 | 固体高分子型燃料電池用セルおよびそれを用いた固体高分子型燃料電池 |
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5503945A (en) * | 1992-12-08 | 1996-04-02 | Institute Of Gas Technology | Separator plate for a fuel cell |
JPH08222237A (ja) * | 1995-02-14 | 1996-08-30 | Aisin Aw Co Ltd | 燃料電池用セパレータ |
US5773162A (en) * | 1993-10-12 | 1998-06-30 | California Institute Of Technology | Direct methanol feed fuel cell and system |
EP0951086A2 (de) * | 1998-04-17 | 1999-10-20 | Matsushita Electric Industrial Co., Ltd. | Brennstoffzelle mit festen Polymerelektrolyten und Herstellungsverfahren dafür |
US6040076A (en) * | 1998-03-03 | 2000-03-21 | M-C Power Corporation | One piece fuel cell separator plate |
EP1032065A2 (de) * | 1999-02-27 | 2000-08-30 | Firma Carl Freudenberg | Dichtungsanordnung für grossflächige dünne Teile |
-
2000
- 2000-09-23 DE DE10047248A patent/DE10047248A1/de not_active Ceased
-
2001
- 2001-09-21 US US10/380,503 patent/US20040038102A1/en not_active Abandoned
- 2001-09-21 WO PCT/DE2001/003657 patent/WO2002025765A2/de not_active Application Discontinuation
- 2001-09-21 AU AU2002216900A patent/AU2002216900A1/en not_active Abandoned
- 2001-09-21 EP EP01985304A patent/EP1328995A2/de not_active Withdrawn
- 2001-09-21 CA CA002422926A patent/CA2422926A1/en not_active Abandoned
- 2001-09-21 JP JP2002528870A patent/JP2004527872A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5503945A (en) * | 1992-12-08 | 1996-04-02 | Institute Of Gas Technology | Separator plate for a fuel cell |
US5773162A (en) * | 1993-10-12 | 1998-06-30 | California Institute Of Technology | Direct methanol feed fuel cell and system |
JPH08222237A (ja) * | 1995-02-14 | 1996-08-30 | Aisin Aw Co Ltd | 燃料電池用セパレータ |
US6040076A (en) * | 1998-03-03 | 2000-03-21 | M-C Power Corporation | One piece fuel cell separator plate |
EP0951086A2 (de) * | 1998-04-17 | 1999-10-20 | Matsushita Electric Industrial Co., Ltd. | Brennstoffzelle mit festen Polymerelektrolyten und Herstellungsverfahren dafür |
EP1032065A2 (de) * | 1999-02-27 | 2000-08-30 | Firma Carl Freudenberg | Dichtungsanordnung für grossflächige dünne Teile |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 12, 26. Dezember 1996 (1996-12-26) & JP 08 222237 A (AISIN AW CO LTD;AQUEOUS RES:KK), 30. August 1996 (1996-08-30) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004021492A1 (en) * | 2002-08-28 | 2004-03-11 | Honda Giken Kogyo Kabushiki Kaisha | Bipolar plates assembly for a fuel cell |
US7049019B2 (en) | 2002-08-28 | 2006-05-23 | Honda Giken Kogyo Kabushiki Kaisha | Fuel cell |
EP1755185A1 (de) * | 2005-08-17 | 2007-02-21 | Institute of Nuclear Energy Research | Verbesserung der Einheitlichkeit der Fluidströmung an Kontakplatten flacher oxidkeramischer Brennstoffzellen |
WO2020200732A1 (de) * | 2019-03-29 | 2020-10-08 | Daimler Ag | Separatorplatte für eine brennstoffzelle |
Also Published As
Publication number | Publication date |
---|---|
WO2002025765A3 (de) | 2003-01-03 |
CA2422926A1 (en) | 2003-03-21 |
EP1328995A2 (de) | 2003-07-23 |
AU2002216900A1 (en) | 2002-04-02 |
US20040038102A1 (en) | 2004-02-26 |
JP2004527872A (ja) | 2004-09-09 |
DE10047248A1 (de) | 2002-04-18 |
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