WO2013079252A1 - Herstellungsverfahren für eine tubulare brennstoffzelle mit zweischichtigem kappenbereich des trägerkörpers - Google Patents
Herstellungsverfahren für eine tubulare brennstoffzelle mit zweischichtigem kappenbereich des trägerkörpers Download PDFInfo
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- WO2013079252A1 WO2013079252A1 PCT/EP2012/070447 EP2012070447W WO2013079252A1 WO 2013079252 A1 WO2013079252 A1 WO 2013079252A1 EP 2012070447 W EP2012070447 W EP 2012070447W WO 2013079252 A1 WO2013079252 A1 WO 2013079252A1
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- core
- injection molding
- cavity
- tool
- tubular
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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
- H01M8/002—Shape, form of a fuel cell
- H01M8/004—Cylindrical, tubular or wound
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/008—Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/24—Producing shaped prefabricated articles from the material by injection moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/36—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means applying fluid pressure or vacuum to the material
- B28B21/38—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means applying fluid pressure or vacuum to the material introducing the material wholly or partly under pressure ; Injection-moulding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/76—Moulds
- B28B21/78—Moulds with heating or cooling means, e.g. steam jackets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/86—Cores
-
- 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
- H01M8/0252—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the form tubular
-
- 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
- H01M8/0286—Processes for forming seals
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/1213—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material
- H01M8/1226—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the electrode/electrolyte combination or the supporting material characterised by the supporting layer
-
- 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
- H01M8/12—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte
- H01M8/124—Fuel cells with solid electrolytes operating at high temperature, e.g. with stabilised ZrO2 electrolyte characterised by the process of manufacturing or by the material of the electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0017—Non-aqueous electrolytes
- H01M2300/0065—Solid electrolytes
- H01M2300/0068—Solid electrolytes inorganic
- H01M2300/0071—Oxides
- H01M2300/0074—Ion conductive at high temperature
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a method for producing a tubular fuel cell, a tubular fuel cell, a fuel cell system, a Switzerlandkernwerkmaschine and a cogeneration unit equipped therewith or a vehicle equipped therewith.
- Solid oxide fuel cells are used to generate electricity and possibly also heat and are often used in auxiliary power units or in combined heat and power plants (CHP) for domestic energy supply or industrial power supply and in power plants as well as on-board power generation Used vehicles. Since solid oxide fuel cells are conventionally operated at temperatures of 600 ° C to 1000 ° C, they are also referred to as high temperature fuel cells.
- Solid oxide fuel cells may have a tubular or planar support body.
- the fuel cells of the type of interest here have a tubular carrier body and are therefore to be delimited due to their geometric embodiment against planar design fuel cells.
- Fuel cells with a tubular carrier body are also referred to as tubular fuel cells.
- Tubular fuel cells can be designed both open on both sides, so that fuel gas or air can be passed through the tubular fuel cell, as well as executed on one end side closed, wherein fuel gas or air can be passed inside a lance in the fuel cell.
- the present invention is a method for producing a tubular fuel cell by means of a Switzerlandkernwerkmaschines.
- the tension core tool comprises at least one tool part forming a cavity and a traction core which can be positioned in the cavity in at least two positions.
- a cavity can be formed between the tension core and the at least one cavity-forming tool part, which essentially follows the shape of a trainee on one side by a cap section
- the traction core tool has at least one sprue channel opening into the cap portion-shaped cavity area.
- a tubular (support) body can be understood to mean, in particular, a substantially hollow-cylindrical body, which in principle can have both a substantially round, for example circular or ovaloid (oval-shaped) and a polygonal base surface.
- the tubular (carrier) body may have a circular base.
- substantially hollow cylindrical can be understood in particular that the (carrier) body, for example, due to the cap portion and the later explained mounting portion may differ from an ideal hollow cylinder.
- a ceramic material may, in particular, be understood as meaning an inorganic, non-metallic material.
- a ceramic material may be at least partially crystalline.
- a glassy material may be understood as meaning an inorganic, non-metallic, amorphous or noncrystalline material.
- non-metallic it may be understood, in particular, that the material has no metallic properties, in particular based on a metallic bond.
- the term non-metallic therefore does not exclude that the material may comprise metal compounds, for example metal oxides and / or silicates, for example magnesium silicate, zirconium oxide and / or aluminum oxide.
- ceramic and / or glass-like can be understood in particular to include mixtures, for example, inorganic, non-metallic materials which are partially crystalline and partially amorphous or glassy, and for example, so-called glass phases.
- step b) the tension core is positioned in a second, more remote from the runner second position can advantageously adjacent to the already filled with the first injection molding component cap-shaped cavity again form a cap portion-shaped cavity in which then in step c) the second Injection molding component can be injected.
- a tubular carrier body for a tubular fuel cell of ceramic and / or vitreous materials closed on one side by a cap portion, the cap portion of which is gas-tight overall due to the layers covering each other and which may otherwise have porous or gas-permeable sections.
- the electrochemically active electrode / electrolyte units of the fuel cell can be provided on the porous sections of the tubular carrier body.
- the gas-tight cap portion due to the layers covering one another can thereby ensure that a gas, for example air or fuel gas, is supplied to the electrode / electrolyte units only through the porous sections and an "electrochemical short circuit" is avoided.
- the load-bearing properties can be taken over by the tubular carrier body, which advantageously makes it possible to make the electrode-electrolyte units and in particular their electrolytes thinner.
- the electrolyte can be made so thin even in this way that it only has a layer thickness of about 15 ⁇ .
- the operating temperature can be lowered to at least 750 ° C, the performance of the fuel cell can be increased and the degradation tendency of the fuel cell can be significantly reduced.
- the material cost can be saved by a thin design.
- a reduction in the operating temperature also has the advantage that even cheaper materials can be used with a lower temperature stability, whereby the cost of materials can be further reduced.
- the runner can advantageously be used to inject both the first and second injection components.
- the method can reduce the number of removal process steps and cycle times. be graced.
- the production can be simplified and accelerated as a whole.
- the method advantageously makes it possible to avoid the formation of bine seams, which has an advantageous effect on the mechanical stability of the fuel cell.
- in the process can be dispensed with a subsequent coating of the body and optionally on a separation of sprue fragments.
- the sprue opens into a central
- Area of the cap portion-shaped cavity area for example, at the apex of the cap portion-shaped cavity area.
- a central gating in this area advantageously allows a weld line free gating of the entire component, especially since a uniform, circumferential flow front can form.
- impurities in the ceramic and / or glassy body can be avoided.
- a residence or displacement of the later-explained functional layer system can advantageously be avoided by central injection.
- the sprue channel has an internal flow divider, in particular a so-called torpedo.
- the tension core has a, for example, conical, extending in the direction of the flow divider,
- the sprue pin can thereby extend into the central region of the cap portion-shaped cavity region.
- the tension core in particular the sprue mandrel of the tension core, touches the flow divider in method step a), wherein the tension core, in particular the sprue mandrel of the tension core, does not touch the flow divider in process step c).
- the layer of the second injection molding component may partially cover the layer of the first injection-molded component on the side facing away from the sprue channel. This can be achieved by moving the sprue mandrel of the tension core in step b) with the tension core away from the runner and thus away from the runner's flow divider.
- the flow divider can be moved away from the traction core, in particular from the sprue mandrel of the traction core.
- the first and second injection-molded components are designed to form an electrically insulating and / or ionically insulating, ceramic and / or glass-like material.
- the first injection-molding component for forming a porous ceramic and / or glass-like material and the second injection-molded component for forming a gas-tight ceramic and / or glassy material is designed.
- the first injection molding component can be designed, for example, to form a ceramic and / or glassy material with an open porosity of> 20%, for example> 25% or> 30% or> 40%, for example about 40%.
- the porosity can be measured for example by means of diffusion or flow measurement, for example via so-called diffusion cells, for example according to Wicke-Kallenbach, mercury porosimetry and / or light or scanning electron microscopy.
- the pores may have an average pore size of ⁇ 300 ⁇ , for example ⁇ 200 ⁇ or ⁇ 100 ⁇ or ⁇ 50 ⁇ .
- the pores may have a substantially elongated shape.
- the pores may have an average length in a range of> 100 ⁇ to ⁇ 300 ⁇ , in particular of> 150 ⁇ to ⁇ 250 ⁇ , for example of about 200 ⁇ , and an average diameter in a range of> 1 ⁇ to ⁇ 70 ⁇ , in particular from> 5 ⁇ to ⁇ 30 ⁇ , for example, from about> 5 ⁇ to ⁇ 10 ⁇ or of about 20 ⁇ have.
- the pores can yield a percolating pore network with a throughput distribution in a range of> 1 ⁇ m to ⁇ 20 ⁇ m, in particular of> 1 ⁇ m to ⁇ 10 ⁇ m, for example of approximately 5 ⁇ m.
- a pore penetration distribution advantageously a free gas diffusion, especially without the occurrence of a so-called Knudsen effect.
- the first and second injection-molding components can be designed, for example, to form at least one ceramic and / or glass-like material which is selected from the group consisting of magnesium silicates, in particular forsterite, zirconium dioxide, in particular doped zirconium dioxide, for example with 6.5% by weight.
- the first injection-molded component may in particular comprise a pore-forming agent.
- the pore-forming agent can be removed in a subsequent process step, for example a debindering step and / or sintering step, to form pores.
- the second injection-molded component can be free in particular pore-forming agent, in particular to form a gas-tight material.
- first and second injection-molded components essentially (only) differ from each other in that the first injection-molded component, in contrast to the second injection-molding component, comprises a pore-forming agent.
- a sandwich-like functional layer system can be arranged on the traction core or on at least one of the cavity-forming surfaces of the tool parts prior to process step a), which comprises at least one, a cathode, an anode and an electrolyte arranged therebetween comprising electrode-electrolyte unit is designed.
- the functional layer system for forming a plurality of electrode-electrolyte units and, for example, for their electrical interconnection with each other and, for example, to their electrical and / or ionic isolation from each other be interpreted.
- the functional layer system can have a cathode layer, an anode layer and an electrolyte layer arranged therebetween. simply include.
- the functional layer system may comprise electrical insulation regions and / or electrical conduction regions.
- the first injection-molded component is injected in such a way that the functional layer system, in particular completely, is covered with the first injection-molded component.
- the functional layer system can be arranged, for example, in the form of a, in particular sleeve-shaped, film on the tension core.
- functional layer system for example by screen printing, in particular by means of screen printing, applied to the tension core.
- at least one removable layer may be provided between the tension core and the functional layer system, which has a low adhesion with respect to the tension core.
- the functional layer system can already make a (provisional) binding with the first injection-molded component, which makes it possible to transfer the tension core into the second position without the functional layer system being substantially moved out of the position it has taken in the context of the process step a) or in the first position of the Switzerlandkernwerkmaschinemaschinees.
- the second injection-molded component can thereby be injected in method step c) such that it overlaps or covers the functional layer system partially, in particular slightly.
- the second injection-molded component may overlap or cover an edge section of the functional layer system, in particular an electrochemically inactive edge section of the functional layer system, for example an electrical insulation and / or line region of the functional layer system.
- the functional layer system is arranged on the traction core or the cavity-forming surface of the tool parts such that the cathode / n, in particular the cathode layer, is arranged on the side of the functional layer system facing away from the traction core or the cavity-forming surface.
- Such an arrangement can cause the cathode to be supplied with air by the porous, tubular carrier body, wherein the anode and electrical lines for electrically contacting the cathode and the anode are under a non-oxidizing or reducing fuel gas atmosphere (hydrogen, methane, ...) can be operated.
- a non-oxidizing or reducing fuel gas atmosphere hydrogen, methane, Certainly
- base metals and their alloys for example nickel or nickel alloys
- the material and manufacturing costs can be reduced.
- the method further comprises the method step d): solidifying the first and second injection-molded component.
- process step d) may include a thermal treatment, for example at a temperature of ⁇ 1200 ° C.
- the first and second injection-molded components are sintered together (cosintering).
- cosintering an intimate connection between the two injection-molded components can be formed.
- the functional layer system can also be sintered together with the first and second injection-molded components.
- the injection-molded components can be adapted to each other in particular with regard to their sintering behavior. It is possible the absolute shrinkage Adjusting the solids contents of the injection molding components, wherein a low ceramic / glass content in the injection molding component can lead to a greater shrinkage than a high ceramic / glass content.
- the sintering kinetics which can be described by the rate of sintering over the temperature, can be adjusted via grain sizes.
- the first and second injection-molding components can also be freed of binders together (for example, thermally and / or by a solvent).
- the functional layer system can be freed from binder together with the first and second injection-molded components.
- the pore-forming agent can also be removed from the first injection-molding component.
- Another object of the present invention is a tubular fuel cell.
- the tubular fuel cell can in particular be produced by a method according to the invention.
- the tubular fuel cell may include a tubular support body which is closed at a tube end by a cap portion and at least one electrode-electrolyte unit comprising a cathode, an anode and an electrolyte disposed therebetween.
- the electrode-electrolyte unit (s) can be applied on the inside or on the outside, in particular on the inside, of the tubular support body, the tubular support body in particular in or in the section adjacent to the electrode-electrolyte unit (s)
- Gas permeable pores and / or openings and in the cap portion may have at least two produced by injection molding, each other partially covering, ceramic and / or glassy layers.
- an outer layer may be porous and an inner layer gas-tight.
- the porous layer can in particular also form the section (s) of the tubular carrier body adjacent to the electrode / electrolyte unit (s).
- the gas-tight layer may in particular partly overlap or cover the functional layer system, in particular slightly, for example an electrochemically inactive edge section of the functional layer system, for example an electrical insulation and / or line region of the functional layer system.
- the present invention relates to a fuel cell system which comprises at least one, in particular a plurality, of fuel cells according to the invention. Moreover, the present invention relates to a Switzerlandkernwerkmaschine, in particular for use in the inventive method.
- the present invention relates to a combined heat and power plant, for example for a residential or commercial building, an industrial plant, a power plant or a vehicle, for example a micro-CHP plant.
- Coupling system and / or a vehicle, which / s at least one fuel cell according to the invention or a fuel cell system according to the invention comprises.
- a (micro) combined heat and power plant may, in particular, be understood to mean a plant for the simultaneous generation of electricity and heat from an energy source.
- Fig. 1-4 are schematic cross-sectional views illustrating an embodiment of the method according to the invention.
- FIGs 1 to 4 illustrate an embodiment of a method according to the invention with a Switzerlandkernwerkmaschine invention.
- FIG. 1 illustrates the tension core tool.
- FIGS. 2 to 4 illustrate the method steps a), b) and c) of the method explained in more detail later.
- FIG. 1 shows a Switzerlandkernwerkmaschine which two, forming a cavity tool parts 12a, 12b and a positionable in the cavity tension core 13, which in Figures 1 and 2 in the first position A and in Figures 3 and 4 in a second position B. is positioned.
- FIG. 1 illustrates that between the tension core 13 and the cavity-forming tool parts 12a, 12b, a cavity 14, 14a can be formed, which substantially corresponds to the shape of a trainees unilaterally closed by a cap portion, tubular body.
- FIGS. 1, 3 to 4 show that the shape of the cavity 14, 14 a, which is formed in the first position A shown in FIGS. 1 and 2, in particular due to the cavity 14 a ', which in the second shown in FIGS Position B is additionally formed, slightly different from the shape of the trainees shown in Figure 4, closed by a cap portion, tubular body 1, 2 can.
- FIG. 1 further illustrates that the traction core tool has an opening in a central region of the cap portion-shaped cavity region 14a.
- the tension core 13 is equipped with a conical sprue mandrel 13a which extends in the direction of the flow divider 16 and which contacts the flow divider 16 in FIG. 1 and during the process step a) shown in FIG.
- FIG. 1 shows that prior to method step a), a sandwich-type functional layer system 3 was arranged on the tension core 13, which is designed to form at least one electrode-electrolyte unit having a cathode, an anode and an electrolyte arranged therebetween.
- the functional layer system 3 is applied in the form of a sleeve-shaped film or by screen printing on the tension core 13.
- FIG. 2 illustrates that in process step a) the tension core 13 is positioned in the first position A, wherein a first injection molding component 1 for forming a ceramic and / or vitreous material is injected through the runner 15 into the tension core tool 1 1 such that the functional layer system 3, in particular completely, with the first injection-molded component 1 is covered.
- a first injection molding component 1 for forming a ceramic and / or vitreous material is injected through the runner 15 into the tension core tool 1 1 such that the functional layer system 3, in particular completely, with the first injection-molded component 1 is covered.
- an entire tube of porous sintering material can be injected via the central annular sprue channel.
- FIG. 3 illustrates that, in method step b), the tension core 13 is moved in the axial direction by a distance d and is positioned in the second position B which is farther from the runner 15, in which the runner 13a the flow divider
- step c) the second injection molding component 2 can be injected.
- the second injection-molded component 2 can partially overlap or cover the functional layer system 3, in particular a section d 'of the functional layer system 3, whereby advantageously “electrochemical" short circuits "can be avoided, in particular due to undesired gas passage.
- FIG. 3 illustrates that within the scope of this embodiment in method step b) the flow divider 16 is also positioned or moved away from the traction core 13, in particular from the sprue mandrel 13 a of the traction core 13.
- the flow dividers 16 shown in FIGS. 1 and 2 and in the flow dividers 16 shown in FIGS. 3 and 4 may be the flow dividers of different sprue systems.
- the first runner system for injecting the first injection molding component 1 and the second runner system for injecting the second injection molding component 2 can be designed, both runner systems having flow dividers 16, which differ in particular in that the flow divider 16 of the first runner system moves further in the direction of the first runner system
- the tension core 13, in particular of the sprue 13a of the tension core 13, extends as the flow divider of the second attachment system.
- the Ceikerntechnikmaschinemaschinemaschine 1 1 can be moved for example by means of a rotary / sliding table or a turning tool.
- FIG. 4 illustrates that in method step c) a second, different from the first different injection molding component 2 for forming a ceramic and / or glassy material through the sprue 15 in the Switzerlandkernwerkmaschine 1 1, in particular in the process step b) newly formed cap section cavity 14a ', is injected.
- a layer of the second injection-molded component 2 is formed in method step c), which partially covers the layer of the first injection-molded component 1 formed in method step a) on the side facing away from the sprue channel 15.
- the first injection-molded component 1 is designed to form a porous ceramic and / or glass-like material and the second injection-molded component 2 to form a gas-tight ceramic and / or glass-like material.
- the first 1 and second 2 injection molding components can essentially (only) differ from each other in that the first injection-molded component 1, in contrast to the second injection-molded component 2, comprises a pore-forming agent.
- the mandrel formed in the sprue 15 can basically be left on the carrier body. Inasmuch as the mandrel should interfere with assembly, however, it is also possible to separate it before a later solidification process step (d), in particular sintering step. At the vertex, a punctiform region of dense-sintered material would then be visible, which is surrounded by porous sintering material, which differs in color appearance and surface gloss from dense-sintering material.
- FIG. 4 further illustrates that in this way a tubular fuel cell can be produced, which comprises a tubular carrier body 1, 2 closed at one tube end by a cap portion and a functional layer system 3 having an electrode-electrolyte unit.
- the electrode-electrolyte units 3 are in the embodiment shown on the inside of the tubular support body 1, 2, which in the adjacent to the electrode-electrolyte units 3 section gas-permeable pores and in the cap portion two injection-molded, covering each other, ceramic and / or glassy layers 1, 2 has.
- FIG. 4 further illustrates that the outer layer 1 may be porous and the inner layer 2 gas-tight, and that the porous layer 1 may also form the portion of the tubular carrier body 1, 2 adjoining the electrode-electrolyte units 3.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014543817A JP5819008B2 (ja) | 2011-11-30 | 2012-10-16 | 支持体の2層のキャップ領域を有する管型燃料電池の製造方法 |
US14/361,805 US9425466B2 (en) | 2011-11-30 | 2012-10-16 | Production method for a tubular fuel cell having a two-layer cap region of the support body |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011087422A DE102011087422A1 (de) | 2011-11-30 | 2011-11-30 | Herstellungsverfahren für eine tubulare Brennstoffzelle |
DE102011087422.4 | 2011-11-30 |
Publications (1)
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WO2013079252A1 true WO2013079252A1 (de) | 2013-06-06 |
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PCT/EP2012/070447 WO2013079252A1 (de) | 2011-11-30 | 2012-10-16 | Herstellungsverfahren für eine tubulare brennstoffzelle mit zweischichtigem kappenbereich des trägerkörpers |
Country Status (4)
Country | Link |
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US (1) | US9425466B2 (de) |
JP (1) | JP5819008B2 (de) |
DE (1) | DE102011087422A1 (de) |
WO (1) | WO2013079252A1 (de) |
Citations (5)
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EP0376579A2 (de) * | 1988-12-22 | 1990-07-04 | Ngk Insulators, Ltd. | Keramikrohr mit einseitig geschlossenem Rohrmantel und Verfahren zu dessen Herstellung |
JP2000176991A (ja) * | 1998-12-15 | 2000-06-27 | Kansai Electric Power Co Inc:The | 押し出し成形方法及び押し出し成形機 |
EP1075916A2 (de) * | 1999-08-10 | 2001-02-14 | Praxair Technology, Inc. | Verfahren und Strangpressmundstück zum Herstellen von keramischen Rohren mit geschlossenem Ende |
US6379485B1 (en) * | 1998-04-09 | 2002-04-30 | Siemens Westinghouse Power Corporation | Method of making closed end ceramic fuel cell tubes |
US20080164641A1 (en) | 2005-12-09 | 2008-07-10 | Shi-Woo Lee | Mold for Ceramic Membrane Tube and Fabrication Method of Ceramic Membrane Tube Using the Same |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2715852C3 (de) * | 1977-04-06 | 1980-03-13 | W. Haldenwanger Kg, 8264 Waldkraiburg | Verfahren und Vorrichtung zum Herstellen eines oxidkeramischen, mit einer Kuppe am Ende verschlossenen Rohres |
SE413400B (sv) | 1978-08-29 | 1980-05-27 | Asea Ab | Sett att framstella ett foremal av kiselnitrid genom isostatisk pressning av en av kiselnitridpulver forformad kropp med ett gasformigt tryckmedium i ett tryckkerl vid en for sintring av kiselnitriden erforderlig ... |
JPS6285906A (ja) | 1985-10-09 | 1987-04-20 | 日本碍子株式会社 | 有底セラミツクパイプの成形方法及び成形装置 |
JPH01225506A (ja) | 1988-03-04 | 1989-09-08 | Ngk Insulators Ltd | 袋筒管の製造方法及びそれに用いる芯金構造 |
JPH066283B2 (ja) | 1988-09-22 | 1994-01-26 | 日本碍子株式会社 | セラミックス多層構造体の押出成形方法 |
DE102010001005A1 (de) * | 2010-01-19 | 2011-07-21 | Robert Bosch GmbH, 70469 | Verfahren zur Herstellung einer SOFC Brennstoffzelle |
DE102010001988A1 (de) * | 2010-02-16 | 2011-08-18 | Robert Bosch GmbH, 70469 | Verfahren zur Herstellung einer elektrolytgetragenen SOFC-Brennstoffzelle |
-
2011
- 2011-11-30 DE DE102011087422A patent/DE102011087422A1/de not_active Withdrawn
-
2012
- 2012-10-16 US US14/361,805 patent/US9425466B2/en active Active
- 2012-10-16 WO PCT/EP2012/070447 patent/WO2013079252A1/de active Application Filing
- 2012-10-16 JP JP2014543817A patent/JP5819008B2/ja not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0376579A2 (de) * | 1988-12-22 | 1990-07-04 | Ngk Insulators, Ltd. | Keramikrohr mit einseitig geschlossenem Rohrmantel und Verfahren zu dessen Herstellung |
US6379485B1 (en) * | 1998-04-09 | 2002-04-30 | Siemens Westinghouse Power Corporation | Method of making closed end ceramic fuel cell tubes |
JP2000176991A (ja) * | 1998-12-15 | 2000-06-27 | Kansai Electric Power Co Inc:The | 押し出し成形方法及び押し出し成形機 |
EP1075916A2 (de) * | 1999-08-10 | 2001-02-14 | Praxair Technology, Inc. | Verfahren und Strangpressmundstück zum Herstellen von keramischen Rohren mit geschlossenem Ende |
US6558597B1 (en) | 1999-08-10 | 2003-05-06 | Praxair Technology, Inc. | Process for making closed-end ceramic tubes |
US20080164641A1 (en) | 2005-12-09 | 2008-07-10 | Shi-Woo Lee | Mold for Ceramic Membrane Tube and Fabrication Method of Ceramic Membrane Tube Using the Same |
Also Published As
Publication number | Publication date |
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DE102011087422A1 (de) | 2013-06-06 |
JP2014534602A (ja) | 2014-12-18 |
JP5819008B2 (ja) | 2015-11-18 |
US9425466B2 (en) | 2016-08-23 |
US20140356758A1 (en) | 2014-12-04 |
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