EP2089927A1 - Fuel cell module and its use - Google Patents
Fuel cell module and its useInfo
- Publication number
- EP2089927A1 EP2089927A1 EP07818247A EP07818247A EP2089927A1 EP 2089927 A1 EP2089927 A1 EP 2089927A1 EP 07818247 A EP07818247 A EP 07818247A EP 07818247 A EP07818247 A EP 07818247A EP 2089927 A1 EP2089927 A1 EP 2089927A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fuel cell
- cell module
- fuel
- module
- base unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1097—Fuel cells applied on a support, e.g. miniature fuel cells deposited on silica supports
-
- 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
- H01M8/002—Shape, form of a fuel cell
-
- 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
- H01M8/1007—Fuel cells with solid electrolytes with both reactants being gaseous or vaporised
-
- 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
-
- 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
- H01M8/2418—Grouping by arranging unit cells in a plane
-
- 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
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1009—Fuel cells with solid electrolytes with one of the reactants being liquid, solid or liquid-charged
- H01M8/1011—Direct alcohol fuel cells [DAFC], e.g. direct methanol fuel cells [DMFC]
-
- 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 module, which comprises a module base unit with a plurality of areally arranged recesses for fuel cells, on which conductor tracks for the electrical connection of the fuel cells are arranged.
- the module base unit additionally comprises a structure for distributing the fuel. In the recesses while fuel cells are introduced.
- Planar fuel cells are fuel cells interconnected in a plane (in contrast to the conventional stacked design). These relatively thin fuel cells offer the advantage that they can often be better integrated into applications than, for example, stacked fuel cells.
- planar fuel cells can serve as part of the housing of an application (DE 102 17 034.7). In addition, they allow a self- breathing, ie pump-free implementation of the cathode-side air supply.
- planar fuel cells are structured as follows:
- the fuel side usually with the fuel-carrying structure (flowfield),
- MEA Membrane electrode unit
- Modules which include the electrical and fluidic interconnection of single cells. For each application, therefore, one or more separate, individual modules must be manufactured or adapted, both anode and cathode.
- a planar fuel cell module comprising a module base unit which has at least two surface-area recesses for fuel cells, in each of which a fuel cell is positively inserted with respect to the outline, wherein the module base unit at least one fuel cell electrically connecting track for the electrical interconnection of the fuel cell and at least one fluid distribution structure for distribution of the fuel has up.
- the recesses have a depth of 1 mm to 10 mm, preferably 2 mm to 4 mm, more preferably a depth corresponding to the thickness of the fuel cell.
- a depth of 1 mm to 10 mm, preferably 2 mm to 4 mm, more preferably a depth corresponding to the thickness of the fuel cell.
- the maximum diameter of the recesses is subject to no restriction, however, it is practicable if the maximum diameter of the recesses 1 cm to 10 cm, preferably 1 cm to 6 cm. Under maximum diameter, the location of the recess is defined according to the invention, at which the diameter is greatest. For example, for a square, this would be the diagonal.
- the recesses can have any shape.
- the n-corners may be regular but also irregular, with regular forms, such as Square or regular hexagon are preferred, as these forms can be stacked extremely space-saving.
- the bottom bounding the recesses does not directly adjoin the anode structure of the respective fuel cell. This is particularly advantageous in the case of passive operation of the fuel cell since so much fuel can reach the anode structure and at the same time the diffusion paths of the fuel are as short as possible. Likewise, this achieves a further flattening of the module, since in this case the fuel cell does not have to have its own fluid distribution structure.
- the base unit may also be configured such that the bottom has at least one recess or opening, so that the fuel can reach the anode unhindered. without going through a detour, eg via a flowfield.
- the base bounding the recess has at least one mechanical device for supporting the anode.
- the anode structure can be designed to be weaker or thinner than the cathode, thereby ensuring a contact pressure and there is also the possibility of saving height and material.
- the mechanical device can also be structured so that it allows a targeted distribution of the fuel, that is, a flow field is obtained.
- the mechanical devices in this case have a height of 50 microns to 30 mm, preferably from 0.1 mm to 3 mm, most preferably from 0.2 mm to 1.5 mm.
- This embodiment is particularly preferred when the fuel cells are not operated passively, but in a flow field. If the fuel cell itself has a flow structure on the anode side, however, it is just as possible that the height of the mechanical device is ⁇ 50 ⁇ m and can also be zero.
- the mechanical device may have foot shape, parallel and / or serial rib shape. It makes sense to support the anode at the point where the structure of the cathode also has such a structure that the GDLs are pressed together from both sides at the same time. Alternatively, however, an embodiment is conceivable in which no mechanical support of the anode structure is provided.
- the recesses into which the fuel cells are introduced designed so that they can be both actively and / or passively supplied with fuel.
- an active supply means that the fuel is conducted to the fuel cells, for example by means of a pump.
- the recesses of the module base unit are arranged one-dimensionally or two-dimensionally.
- a linear arrangement of the recesses is thus ensured, which leads to a linear arrangement after introduction of the fuel cells.
- the recesses are mounted flat. In both cases, thus an extremely thin overall arrangement of the fuel cell can be realized, the known from the prior art stack construction is bypassed.
- An advantageous construction of the fuel cells for the fuel cell module provides that at least the following components are present: an anode structure, a first gas diffusion layer (GDL) adjoining thereto, a membrane membrane adjacent thereto.
- Electrode unit (MEA) which may possibly also be segmented (ie that it consists of a catalyst layer, an adjacent membrane and a subsequent further catalyst layer), an adjacent further gas diffusion layer (GDL) and a cathode structure adjacent thereto.
- Such a standardized structure of a fuel cell allows the use of a variety of fuels.
- the fuel cells are preferably operated with hydrogen or methanol. Since the module is constructed so that the cathode side lies on the open side, the module according to the invention is predestined for use in air.
- oxidants e.g., pure oxygen
- the fuel cells themselves are constructed as planar modules.
- the anode can be provided with an identical to the cathode, open structure, but also with a flow field. Both in the anode and in the cathode half a recess for the GDL is provided. This can be fixed locally and compressed as far as possible to achieve the best possible results.
- a recess for the MEA is provided in the anode, which is thus also fixed and sealed on the anode side.
- the depression is used with an increase on the cathode as a fit, so that on the one hand, the membrane-electrode unit MEA is densely pressed / glued and on the other hand, the cell can be simply and accurately assembled.
- the outer area of the cell is used for gluing / welding the two frame halves.
- the fuel cells have the same geometric shape as the recesses, so that a fit is possible.
- the anode and cathode structures of the fuel cells preferably have a frame that includes a structure that is electrically conductive.
- This structure may be honeycomb and / or grid-shaped, but there are round structures and / or slots conceivable.
- the material of this structure may be continuous (e.g., metal or conductive polymers).
- it is also possible to ensure conductivity by, for example, subsequently coating a matrix material (for example plastics) forming the structure with a conductive substance (for example by sputtering, vapor deposition and / or electroplating processes, for example with gold).
- This structure absorbs the electron flow which, in the case of the anode, originates from the fuel and is conducted via the gas diffusion layer to the structure, in the case of the cathode originates from the electrical consumer and is conducted via this structure to the gas diffusion layer and, for example, atmospheric oxygen and thus serves the electrical connection of each individual fuel cell.
- the frame which spans this structure preferably has only in a limited area an electrically conductive coating which, with the honeycomb and / or lattice-shaped structure in electrical is in contact.
- this limited area is limited to, for example, a small sector of the circle or the oval, in the case that it is an n-angular embodiment of the fuel cell, the limited area is at least one Part of a n-corner forming page.
- the remaining sides of the frame also have an electrical coating, which, however, is not in electrical contact with the electrically conductive honeycomb and / or lattice-shaped structure.
- the electrical contacts on all sides are designed such that they are formed both on the outside of the electrode and the active side of the fuel cell side facing the electrode on the frame.
- the fuel cell is assembled so that the cathode and anode structure of each fuel cell are arranged offset from one another so that the angle between the respective side of the n-corner, which has the electrically conductive coating , in angles of 360 ° / n, 2 x 360 ° / n, to (n-1) x 360 ° / n.
- the electrical contacts of the cathode structure and the anode structure are thus in electrical contact with each other.
- a particular advantage here is that both the anode and the cathode of a corresponding fuel cell from only one side is accessible. It also follows that the electrical interconnection of the module base unit is substantially simplified, since the corresponding conductor structures, for example, only have to be applied to the surface of the base unit, but do not have to be guided into the recesses.
- the fuel cells are plugged, clamped and / or clamped on the module base unit. This ensures that, for example, in the case of a defect of a fuel cell, this is easily replaceable.
- a seal is arranged between the fuel cell and the module base unit.
- the seal is preferably selected from the group consisting of gaskets, sealing rings and / or by injection molding on the fuel cell and / or module base unit molded seals.
- the cell must then be pressed onto the gasket by clamping, for example, the electrical circuitry would be connected via a plug or a spring mechanism, such as a plug. in a battery compartment.
- the fuel cells are glued to the module base unit, welded on and / or engaged.
- the adhesive and / or welded joint simultaneously represents the seal between the cell and the module base unit.
- the electrical connection can also be soldered.
- the possibility of locking the fuel cells in the module base unit is understood to mean a form-locking connection in the sense that the fuel cells are fixed by pressing into the precisely fitting recess on the module base unit.
- the fixation is configured reversible, so that an easy removal and thus exchangeability of a fuel cell is given.
- the electrical contact points must be flexible in a way, for example, performed resilient and the seals also have a high compressibility, as is the case with O-ring seals.
- the electrical interconnection of the fuel cells and / or the fluidic distribution structure may be arranged in parallel and / or in series.
- a serial fluidic interconnection is understood to mean that the fuel fluid is routed from one recess to another in succession.
- the recesses must be in communication with each other, irrespective of how this connection is made. For example, this can take place via a channel generated in the module base unit via the bore and / or via connections that are established, for example, via hoses.
- a parallel fluidic interconnection a distribution of the fuel takes place before supplying the fuel, so that each fuel cell is supplied individually with fuel.
- some of the fuel cells are parallel and another Part is connected serially fluidly and / or electrically.
- the at least one conductor track is applied to the surface of the module base unit, further results in the advantage that the conductor tracks do not have to be guided into the recesses, since both poles of the fuel cell are accessible from one side. This also saves material and costs in the production.
- the at least one conductor track is designed so that it is in electrical contact with the anode and / or cathode forming electrically conductive coating each of a fuel cell. How the exact connection has to be made depends on the intended use and is known to the person skilled in the art.
- the module base unit containing the individual fuel cells is mechanically flexible and / or rigid. This allows application of the fuel cell module on a variety of surfaces without the shape of the surface having to meet some requirement. In other applications, it may be advantageous if the fuel cell module is mechanically rigid, i. has a high mechanical rigidity, so that, for example, support for the mechanical rigidity of the object on which the fuel cell module is applied can be ensured.
- Fuel cell module for example, be led around a corner on a surface.
- the individual fuel cell components electrochemical reaction process to be used.
- the modular design is particularly suitable for a production process suitable for mass production.
- the fuel cell module is used to supply power to low-energy applications.
- These applications are preferably selected from the group consisting of telecommunications systems, mobile phones, pocket PCs, GPS devices, automatic advertising surfaces, lighting, toys, applications for camping and outdoor use, teaching and demonstrating devices, radios, TV sets, mobile computers, emergency power supplies, alarm systems, mobile, off-line chargers, medical devices and military applications.
- the cells can be installed modularly, ie depending on the required voltage, current or power or according to available space, a corresponding number of fuel cells can be connected as required. Since the cathode is already present on each cell, it no longer has to be manufactured separately.
- each cell is manufactured individually with a separate MEA, there is no longer the problem of an ionic short circuit, so each cell can be sealed separately.
- PCBs printed circuit boards
- injection-molded materials are well suited.
- FIGS. 4 to 7 show the individual structural elements of a fuel cell according to the invention and the structure of a fuel cell
- FIGS. 8a and 8b show the various interconnection options in the case of a linear arrangement of fuel cells in a fuel cell module according to the invention
- FIGS. 9a and 9b show the various circuit options of fuel cells in a two-dimensional fuel cell module
- FIGS. 8a and 8b show the various interconnection options in the case of a linear arrangement of fuel cells in a fuel cell module according to the invention
- FIGS. 9a and 9b show the various circuit options of fuel cells in a two-dimensional fuel cell module
- FIGS. 8a and 8b show the various interconnection options in the case of a linear arrangement of fuel cells in a fuel cell module according to the invention
- FIGS. 9a and 9b show the various circuit options of fuel cells in a two-dimensional fuel cell module
- FIG. 10 shows exemplary embodiments of mechanical devices for supporting the anode and the construction of the module base unit.
- FIGS. 1 to 3 the basic structure of the two similar cathode Ia and anode structures Ib is shown in different perspective views (side view, top view).
- the two structures are square.
- the frame underlying the two structures Ia and Ib may be formed from any, electrically non-conductive material.
- Plastics e.g., PPS
- a grid structure 2 is inserted, which is electrically coated.
- this structure may also be formed entirely of an electrically conductive material.
- Cathode Ia and anode structure Ib a bearing surface 3 for the MEA or sealing surface or fitting groove, which is formed in the case of the cathode structure Ia as a survey, in the case of the anode structure Ib as a depression det. Further on the periphery, one closes
- Adhesive or welding surface 4 via which the assembly of the two electrode elements Ia and Ib takes place.
- the frame has an electrical contact 5 on one side, which is in electrical connection with the structure 2.
- the other sides also have electrical contacts 6, however not in electrical connection with the structure 2.
- All contacts 5 and 6 have in common that they completely cover the outside of the frame 23 and at least partially formed at least on the active and outer side. It is essential, however, that the coating 5 is in electrical contact with the structure 2, while the coating 6 does not do so.
- the electrical contacts have been omitted for the sake of clarity, so that the principal components of the cathode structure Ia or anode structure Ib are better exhibited.
- FIG. 4 shows an exploded view of a fuel cell according to the invention, which is successively assembled in FIGS. 5, 6 and 7 as far as the finished fuel cell 14.
- the principal components of the fuel cell according to the invention are the cathode structure Ia, a first gas diffusion layer (GDL) 7, a membrane electrode assembly (MEA) 8, which is spanned by a membrane 9, a further gas diffusion layer (GDL) 10 and the anode structure Ib.
- GDL first gas diffusion layer
- MEA membrane electrode assembly
- GDL further gas diffusion layer
- FIG. 1 also shows how the two gas diffusion layers (GDL) 7 and 10 are respectively inserted into the cathode structure Ia and anode structure Ib.
- the two gas diffusion layers 7 and 10 are dimensioned so that they form-fitting with the netzför- complete structure 2.
- the gas diffusion layers 7 and 10 must be fixed with an adhesive.
- the not shown grooves have the optimal depth for the particular embodiment used.
- the catalyst layer 10 with membrane 9 is inserted into the anode structure 1b on a contact surface provided for this purpose.
- the groove is deeper than the membrane, so that together with the opposite side (embodied here as the cathode structure Ia) creates a fit.
- the interspace which arises between the halves is optimized, so that on the one hand a favorable contact pressure arises on the components, which causes the lowest possible cell resistance and on the other hand the catalyst layer 10 is pressed tightly with the anode structure Ib.
- an additional groove must be provided for sealing or the membrane 9 are adhesively bonded to the anode with an adhesive.
- the two cell halves are connected to each other, so that the entire cell 14, as shown in Figure 7, arises.
- the cathode structure Ia and the anode structure Ib are arranged at a relative angle with respect to the contacts 5 of 90 ° to each other, arise when joining the new electrical contacts 12 (anode) and 14 (cathode), with the respective anöden- or Cathode-side lattice-shaped structures 2 are in communication.
- the contacts 5 are in contact with the contacts 6 of the respective opposite electrode. This creates a continuous conductive surface, so that a current pick-up from any side of the fuel cell 14 is possible.
- the two other contacts 13 are contacts, at where two non-contact with the grid-shaped structure 2 contacts 6 lie on one another.
- FIGS. 8a and 8b show the linear exemplary embodiments of a fuel cell module 20 according to the invention.
- the fuel cells 14 shown in FIG. 7 are linearly mounted on a module base unit and electrically connected in series via the line devices 15, electrically connected in parallel via the line devices 15 in FIG. 8b.
- the fuel cells have an assembly in which the cathode Ia and the anode structure Ib are arranged offset by 180 ° relative to one another.
- the cells 14 may be incorporated in the module base unit 21, e.g. be installed as follows:
- FIGS. 9a and 9b show further possible arrangements of fuel cells 14 in a fuel cell module 20 according to the invention.
- the fuel cells are planar, ie two-dimensionally arranged on a module base unit 21, wherein in FIG. 9a the electrical interconnection is connected in series via the line devices 15, 9b is performed in parallel via the line devices 15.
- FIG. 9a shows that an electrical interconnection of the fuel cells takes place at an angle of 90 °.
- the cathode Ia and anode structure Ib are joined together offset by 90 ° to each other.
- FIG. 10 shows possible structuring possibilities of the module base unit 21, which can serve for mechanical support of the anode structure 1b.
- a flat trained mechanical support 16a is provided, this is for example the case if the fuel cell 14 is to be passively supplied with fuel, in which case the closest possible arrangement of the fuel cell to the module base unit is to be preferred small diffusion paths are present.
- the mechanical embodiments may be designed as desired, but feet (16b) or serial (16c) or parallel (16d) embodiments are preferred.
- these web-like structures can also be arranged such that the fuel is directed to the anode structure in a targeted manner, so that an improved supply of the anode structure with fuel is possible by such an arranged flow field.
- the mechanical support structures are each applied to the bottom 17 of a recess forming surface.
- module base units 21 are conceivable, which always have the same support structure 16.
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006048860A DE102006048860B4 (en) | 2006-10-16 | 2006-10-16 | Fuel cell module and its use |
PCT/EP2007/008152 WO2008046487A1 (en) | 2006-10-16 | 2007-09-19 | Fuel cell module and its use |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2089927A1 true EP2089927A1 (en) | 2009-08-19 |
Family
ID=38847031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07818247A Withdrawn EP2089927A1 (en) | 2006-10-16 | 2007-09-19 | Fuel cell module and its use |
Country Status (5)
Country | Link |
---|---|
US (1) | US20100009237A1 (en) |
EP (1) | EP2089927A1 (en) |
JP (1) | JP2010507201A (en) |
DE (1) | DE102006048860B4 (en) |
WO (1) | WO2008046487A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102009017779A1 (en) | 2009-04-20 | 2010-10-28 | Fachhochschule Gelsenkirchen Energie Institut | Modular fuel cell system |
JP5539524B2 (en) * | 2009-10-02 | 2014-07-02 | マイ エフシー エイビー | Fuel cell assembly |
DE102010051748A1 (en) | 2010-11-19 | 2012-05-24 | Gräbener Maschinentechnik GmbH & Co. KG | Fuel cell assembly for fuel cell system, has flexible pressure transmission elements that are arranged between adjacent fuel cells, where pressure plates are provided at sides of pressure transmission elements |
AT511126B1 (en) * | 2011-03-09 | 2014-09-15 | Avl List Gmbh | ELECTRIC ENERGY STORAGE |
DE102013225159B4 (en) * | 2013-12-06 | 2016-02-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Arrangement of electrochemical cells |
DE102015226123A1 (en) * | 2015-12-21 | 2017-06-22 | Robert Bosch Gmbh | fuel cell device |
CN113690477B (en) * | 2021-07-20 | 2022-11-08 | 浙江天能氢能源科技有限公司 | Air cooling type fuel cell stack |
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-
2006
- 2006-10-16 DE DE102006048860A patent/DE102006048860B4/en not_active Expired - Fee Related
-
2007
- 2007-09-19 EP EP07818247A patent/EP2089927A1/en not_active Withdrawn
- 2007-09-19 US US12/445,894 patent/US20100009237A1/en not_active Abandoned
- 2007-09-19 JP JP2009532694A patent/JP2010507201A/en active Pending
- 2007-09-19 WO PCT/EP2007/008152 patent/WO2008046487A1/en active Application Filing
Non-Patent Citations (1)
Title |
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See references of WO2008046487A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2010507201A (en) | 2010-03-04 |
DE102006048860B4 (en) | 2010-06-10 |
US20100009237A1 (en) | 2010-01-14 |
WO2008046487A1 (en) | 2008-04-24 |
DE102006048860A1 (en) | 2008-04-17 |
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