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WO2015169758A1 - Élément accumulateur d'hydrogène en barbotine et dispositif et procédé associés - Google Patents

Élément accumulateur d'hydrogène en barbotine et dispositif et procédé associés Download PDF

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Publication number
WO2015169758A1
WO2015169758A1 PCT/EP2015/059738 EP2015059738W WO2015169758A1 WO 2015169758 A1 WO2015169758 A1 WO 2015169758A1 EP 2015059738 W EP2015059738 W EP 2015059738W WO 2015169758 A1 WO2015169758 A1 WO 2015169758A1
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WO
WIPO (PCT)
Prior art keywords
hydrogen storage
slurry
dried
slip
mold
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.)
Ceased
Application number
PCT/EP2015/059738
Other languages
German (de)
English (en)
Inventor
Antonio Casellas
Klaus Dollmeier
Eberhard Ernst
Markus Laux
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GKN Powder Metallurgy Engineering GmbH
Original Assignee
GKN Sinter Metals Engineering GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GKN Sinter Metals Engineering GmbH filed Critical GKN Sinter Metals Engineering GmbH
Publication of WO2015169758A1 publication Critical patent/WO2015169758A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
    • C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
    • C01B3/0078—Composite solid storage mediums, i.e. coherent or loose mixtures of different solid constituents, chemically or structurally heterogeneous solid masses, coated solids or solids having a chemically modified surface region
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/0005—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes
    • C01B3/001—Reversible uptake of hydrogen by an appropriate medium, i.e. based on physical or chemical sorption phenomena or on reversible chemical reactions, e.g. for hydrogen storage purposes ; Reversible gettering of hydrogen; Reversible uptake of hydrogen by electrodes characterised by the uptaking medium; Treatment thereof
    • C01B3/0084—Solid storage mediums characterised by their shape, e.g. pellets, sintered shaped bodies, sheets, porous compacts, spongy metals, hollow particles, solids with cavities, layered solids
    • 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
    • Y02E60/32—Hydrogen storage

Definitions

  • the present invention relates to a method and an apparatus for producing a hydrogen storage element for a hydrogen storage and a hydrogen storage component for a hydrogen storage.
  • the terms "element” and “component” are used synonymously.
  • hydrogen storage for example, have compressed, hydrogen-storing metal alloys, which are made of powder. Examples of this are described in DE-C-195 46 904, DE-A-40 30 626 and DE-A-40 33 227.
  • the object of the present invention is to provide a simple way of producing a hydrogen storage component having a high density of the hydrogen storage material.
  • the invention further proposes a method for producing a hydrogen storage component of a hydrogen storage device with the following steps.
  • a first step comprises producing a slip comprising a hydrogenatable material, in particular a hydrogenatable metal.
  • a second step involves creating a blank from the slurry containing the hydrogenatable material, preferably in layer form.
  • a third step involves the removal of residual moisture / liquid from the blank and optionally the further processing of a hydrogen storage component from the blank. The same component can then be used for hydrogen storage.
  • the slip is already pre-dried to the extent that it allows processing as a layer to a blank.
  • the slurry prepared in the first step preferably comprises a liquid, for example water, wherein the liquid content in the slurry may be about 15-25%.
  • the blank is created in particular by the withdrawal of liquid / moisture from the slip produced in the first step.
  • the slurry is in contact with a mold which extracts moisture from the slurry, as is the case, for example, with a plaster mold.
  • the slurry may dry by moisture transfer from the slurry to the mold and thereby solidify, and in particular form a solidified layer comprising the hydrogenatable material. Dehumidification may additionally or alternatively be accelerated by heating the slip in the mold.
  • the slip can heat automatically due to the hydrogenation of the hydrogenatable material, since this reaction (adsorption of hydrogen) is exothermic.
  • the remaining liquid slip is removed from the at least partially solidified or already completely solidified part of the slip.
  • the mold can be freed from the solidified part of the slurry.
  • the moisture or liquid content to be removed may differ. Thus, this proportion may be rather low, for example less than about 13%.
  • the slurry may be introduced into the mold in various ways depending on its viscosity.
  • a very tough slurry which has about a liquid or water content of 0-15%, by means of pressing, a ffenzäher slip, which has about a liquid or water content of 15-25%, by means of a plastic molding and a viscous slurry, which has about a liquid or water content of about 25%, are introduced by casting into the mold.
  • hydrogen storage describes a reservoir in which hydrogen can be stored using at least one hydrogenatable element.
  • conventional methods for storing and storing hydrogen can be used, for example compressed gas storage, such as storage in pressure vessels by compression with compressors or liquid gas storage, such as storage in liquefied form by cooling and compression.
  • compressed gas storage such as storage in pressure vessels by compression with compressors or liquid gas storage, such as storage in liquefied form by cooling and compression.
  • liquid gas storage such as storage in liquefied form by cooling and compression.
  • Other alternative forms of storage of hydrogen are based on solids or liquids, such as metal hydride storage, such as storage as a chemical link between hydrogen and a metal or alloy, or adsorption storage, such as adsorbed storage of hydrogen in highly porous materials.
  • metal hydride storage such as storage as a chemical link between hydrogen and a metal or alloy
  • adsorption storage such as adsorbed storage of hydrogen in highly porous materials.
  • the hydrogen temporarily to organic substances bind, whereby liquid, pressure-less
  • the hydrogenatable material can take up the hydrogen and release it again when needed.
  • the material comprises particulate materials in any 3-dimensional configuration, such as particles, granules, fibers, preferably cut fibers, flakes and / or other geometries.
  • the material may also be plate-shaped or powder-like. It is not necessary that the material has a uniform configuration. Rather, the design may be regular or irregular. Particles in the sense of the present invention are, for example, approximately spherical particles as well as particles with an irregular, angular outer shape.
  • the surface may be smooth, but it is also possible that the surface of the material is rough and / or has unevenness and / or depressions and / or elevations.
  • a hydrogen storage may comprise the material in only one specific 3-dimensional configuration, so that all particles of the material have the same spatial extent.
  • a hydrogen storage it is also possible for a hydrogen storage to comprise the material in different configurations / geometries. By a variety of different geometries or configurations of the material, the material can be used in a variety of different hydrogen storage.
  • the material comprises hollow bodies, for example particles with one or more cavities and / or with a hollow mold, for example a hollow fiber or an extrusion body with a hollow channel.
  • hollow fiber describes a cylindrical fiber which has one or more continuous cavities in cross-section.
  • the hydrogenatable material preferably has a bimodal size distribution. In this way, a higher bulk density and thus a higher density of the hydrogenatable material in the hydrogen storage can be made possible, whereby the hydrogen storage capacity, that is, the amount of hydrogen that can be stored in the memory is increased.
  • the hydrogenatable material may comprise at least one hydrogenatable metal and / or at least one hydrogenatable metal alloy, preferably consisting thereof. It may also be another hydrogen storage material, adapted for a particular purpose, providing sufficient hydrogen storage capability. Therefore, a non-metallic material as well as a mixture of different, each hydrogen-storing materials can be used.
  • the hydrogenatable material according to the invention may comprise an even hydrogenatable material, an already hydrogenated material or else a mixture thereof.
  • MOF's Metal-Organic-Frameworks
  • Metal-Organic Frameworks Metal-Organic Frameworks
  • the material according to the invention may also comprise non-hydrogenatable metals or metal alloys.
  • the hydrogenatable material according to the invention may comprise a low-temperature hydride and / or a high-temperature hydride.
  • the term hydride refers to the hydrogenatable material, regardless of whether it is present in the hydrogenated form or the non-hydrogenated form.
  • Low-temperature hydrides store hydrogen preferably in a temperature range between -55 ° C to 180 ° C, especially between -20 ° C and 150 ° C, especially between 0 ° C and 140 ° C.
  • High-temperature hydrides preferably store hydrogen in a temperature range from 280 ° C and more, in particular from 300 ° C and more. At the temperatures mentioned, the hydrides can not only store hydrogen but also give off, so they are functional in these temperature ranges.
  • Hydrogenatable materials in their hydrogenated and / or non-hydrogenated form can be used according to the invention in the production of hydrogen stores, for example as mixtures.
  • the hydrogen storage may have various layers that can perform different functions.
  • layers describes that preferably one material, but also two or more materials are arranged in one layer and this can be delimited as a layer from a direct environment. For example, different materials can be arranged successively one above the other so that adjacent layers touch each other directly.
  • the hydratable layer can be arranged directly adjacent to a thermally conductive layer, so that the resulting heat in the hydrogen uptake and / or release of hydrogen on the part of the hydrogenatable material can be delivered directly to the adjacent layer.
  • the hydrogen storage (hydrogenation) can take place at room temperature.
  • the hydrogenation is an exothermic reaction.
  • the resulting heat of reaction can be dissipated.
  • dehydrogenation requires energy be supplied to the hydride in the form of heat. Dehydration is an endothermic reaction.
  • a low-temperature hydride is used together with a high-temperature hydride.
  • the low-temperature hydride and the high-temperature hydride are mixed in a layer of a second region. These can also be arranged separately from one another in different layers or regions, in particular also in different second regions. For example, it may be provided that a first region is arranged between these second regions.
  • a first region has a mixture of low and high temperature hydride distributed in the matrix. There is also the possibility that different first regions have either a low-temperature hydride or a high-temperature hydride.
  • the hydrogenatable material comprises a metal selected from magnesium, titanium, iron, nickel, manganese, nickel, lanthanum, zirconium, vanadium, chromium, or a mixture of two or more of these metals.
  • the hydrogenatable material may also comprise a metal alloy comprising at least one of said metals.
  • the hydrogenatable material comprises at least one metal alloy capable of at a temperature of 150 ° C or less, in particular in a temperature range of -20 ° C to 140 ° C, in particular from 0 ° C to 100 ° C. is to store and release hydrogen.
  • the at least one metal alloy is preferably selected from an alloy of the AB 5 type, the AB type and / or the AB 2 type.
  • a and B respectively denote different metals from each other, wherein A and / or B are especially selected from the group comprising magnesium, titanium, iron, nickel, manganese, nickel, lanthanum, zirconium, vanadium and chromium.
  • the indices represent the stoichiometric ratio of the metals in the respective alloy Alloys according to the invention may be doped with foreign atoms.
  • the degree of doping may according to the invention up to 50 atomic%, in particular up to 40 atomic% or up to 35 atomic%, preferably up to 30 atomic% or up to 25 atomic%, especially up to 20 atomic% or until to 15 at%, preferably up to 10 at% or up to 5 at% of A and / or B.
  • the doping can be carried out, for example, with magnesium, titanium, iron, nickel, manganese, nickel, lanthanum or other lanthanides, zirconium, vanadium and / or chromium.
  • Alloys of the AB 5 type are easily activated, that is, the conditions that are necessary for activation, similar to those in the operation of the hydrogen storage. They also have a higher ductility than alloys of the AB or AB 2 type. By contrast, alloys of the AB 2 or the AB type have a higher mechanical stability and hardness compared to alloys of the AB 5 type.
  • the hydrogenatable material (hydrogen storage material) comprises a mixture of at least two hydrogenatable alloys, wherein at least one AB 5 -type alloy and the second alloy is an AB-type and / or AB 2 -type alloy.
  • the proportion of the alloy of the AB 5 type is in particular 1 wt .-% to 50 wt .-%, in particular 2 wt .-% to 40 wt .-%, particularly preferably 5 wt .-% to 30 wt .-% and in particular 5% by weight to 20% by weight, based on the total weight of the hydrogenatable material.
  • the hydrogenatable material is preferably present in particulate form (particles, particles).
  • the particles have a particle size x 50 of from 20 pm to 700 pm, preferably from 25 pm to 500 pm, especially from 30 pm to 400 pm, in particular from 50 pm to 300 pm.
  • X 50 means that 50% of the particles have a mean particle size which is equal to or less than the is called value.
  • the particle size was determined by laser diffraction, but can also be done for example by sieve analysis.
  • the mean particle size here is the weight-based particle size, wherein the volume-based particle size is the same here. Specified here is the particle size of the hydrogenatable material before it is subjected to hydrogenation for the first time.
  • the hydrogenatable material is so firmly integrated in the matrix that it comminutes upon storage of hydrogen. Preference is therefore given to using particles as a hydrogenatable material, which breaks up, while the matrix remains at least predominantly undestroyed.
  • the matrix would tend to rupture when stretched by volume increase of the hydrogenatable material during storage of hydrogen when high elongation due to volume growth occurs. It is currently believed that the external forces acting on the particles from the outside as a result of the attachment in the matrix in the increase in volume together with the tensions within the particles due to the volume increase lead to a breakup. A break-up of the particles could be found particularly clearly when incorporated into polymer material in the matrix. The matrix of polymer material was able to hold the thus broken up paticles stable stationary.
  • a binder content may preferably be between 2% and 3% by volume of the matrix volume.
  • a change in particle size due to breakage of the particles by the storage of hydrogen by a factor of 0.6, more preferably by a factor of 0.4, based on the x 50 particle size at the beginning and after 100 storage operations.
  • a carbon matrix can be used in which the low-temperature hydride is embedded.
  • a carbon matrix can be used in which the low-temperature hydride is embedded.
  • the slurry is produced with a pulverulent, hydrogenatable metal.
  • a further development of the method provides that the slip is poured into a mold to create the blank and then the liquid is removed from the mold, wherein preferably the mold is a container which later serves as a hydrogen storage. Particularly advantageously, the mold is heated and the liquid contained in the blank evaporates.
  • the method can provide that one mold (or several molds in succession) is partly filled with slurry, then at least one other material is introduced into the mold, and then the respective mold, some of which is already filled with slip, is further mixed with slip is filled.
  • the blank receives a profiling on the surface during the manufacturing process, preferably by means of a comb.
  • a material other than slip for example a film, a sheet metal and / or element, which can serve for example for heat conduction, to a slip layer in order then to continue the production of the component by one or more further slip layers.
  • Other materials can always be placed on slaked layers if necessary.
  • the proposed method can be carried out, for example, as an in-line process, in which a multiplicity of identical disk-shaped blanks are produced from a slurry charge from which identical components of a hydrogen storage unit in disk form are produced, the disks being arranged one above the other in the hydrogen storage space become.
  • the slip is produced with at least one graphite material, preferably with at least one naturally expanded graphite.
  • the hydrogenatable material may preferably be arranged in a matrix after the slurry has solidified.
  • the term matrix describes a composite of two or more bonded materials. In this case, one material preferably takes on another.
  • the matrix can be porous as well as closed.
  • the matrix is porous, preferably so porous that a flow through a hydrogen-containing fluid is possible.
  • connection takes place, for example, by material or positive connection or a combination of both.
  • a fixed positioning of the hydrogenatable material can be made possible in the matrix.
  • Other components of the matrix may be, for example, materials for the heat conduction and / or the gas feedthrough.
  • the matrix and / or a layer comprises a mixture of different types of carbon, including, for example, expanded natural graphite as one of the carbon species. Preference is given to using unexpanded graphite together with expanded natural graphite, using more unexpanded graphite than expanded graphite by weight.
  • the matrix may comprise expanded natural graphite in which, for example, a hydrogenatable material is arranged.
  • a blank with the hydrogenatable metal is prepared from the slurry, wherein the blank is stored in a helical or helical form, in a wound roll, as a folded or stacked layer.
  • the slip is advantageously poured in a helical or helical shape, in the form of a wound-up roll, or as a folded or superimposed layer.
  • helical filling here describes an arrangement of the material by a filling device, which pivots its outlet opening for discharging the hydrogenatable material in a circle, so that a helical structure is formed. Furthermore, the filling device can only swing the outlet opening back and forth, so that the discharged material has a waveform.
  • the hydrogenatable material may for example be introduced into the matrix by means of slip casting.
  • slip casting In the context of the disclosure, reference is made to the content of DE 10 2014 006 371, from which a feed device emerges, which can also be used here for slip filling.
  • a development of the method provides that the slip is produced with a suspended, hydrogenatable metal and with fibers, wherein the fibers of the later produced from the slurry hydrogen storage component gives a higher strength and a higher thermal conductivity.
  • a hydrogen storage production device for producing a component of a hydrogen storage is proposed, preferably a hydrogen storage component of a hydrogen storage, wherein a container is provided at least for the provision of the slurry, preferably for producing a slurry, with at least a first supply of hydrogenatable metal and with an opening through which the slurry exits for further processing.
  • the device has a die for creating blanks from the slurry and is connected to a further processing unit, in which the blanks moisture is removed and components of the hydrogen storage are formed.
  • the container is provided with at least one second supply of graphite.
  • the further processing unit subsequently follows a station for assembling the components into a hydrogen storage.
  • a supply of prefabricated material is provided for the arrangement between the components.
  • a profiling station is provided for profiling at least one surface of the component.
  • the hydrogen storage device has components in the form of a core-shell structure, in which the core comprises a first material and the shell comprises a second material different therefrom, wherein the first material and / or the second material is a hydrogen-containing material. having chernding material.
  • the first material and / or the second material is a hydrogen-containing material. having chernding material.
  • this is preferably provided in the layers of the composite material.
  • the second material of the shell comprises a polymer, which is at least designed hydrogen-permeable.
  • the core has a heat-conducting material and the jacket a hydrogen-storing material.
  • the core has a primary hydrogen-storing material and the jacket is a primary heat-conducting material, wherein the heat-conductive material is hydrogen-permeable.
  • a hydrogen storage element is proposed, preferably produced by a process according to one of claims 1 to 15, in particular preferably produced by a device according to any one of claims 11 to 14, comprising at least one hydrogen-permeable body, preferably containing a porous body made of a slip casting a hydrogenatable material, and preferably a thermally conductive material, wherein the element is for use in a hydrogen storage.
  • An advantageous embodiment of the hydrogen storage element provides that at least one surface of the element has a surface profiling.
  • a further embodiment of the hydrogen storage element provides that the element is arranged in a container of a hydrogen storage, wherein the element forms the hydrogen storage at least partially.
  • the hydrogen storage element in the container helical, wound structure and / or several elements are stacked.
  • a specific embodiment provides that the first hydrogenatable material is a low-temperature hydride and the hydrogen storage element comprises a second hydrogenatable material which is a high-temperature hydride.
  • hydrogen storage material describes a material that has hydrogen storage capability.
  • this material may be present before and / or during the processing according to the invention in the hydrogenated or at least partially non-hydrogenated state.
  • hydrogenatable is mentioned in the foregoing or following, this should not be understood as limiting insofar as this term can in principle also mean the hydrogenated state of the hydrogen storage element.
  • the hydrogenatable or hydrogenated particles eg of metal or metal hydride
  • the hydrogenatable or hydrogenated particles are always suspended in a viscous mass in the solid state.
  • any additives such.
  • particles of thermally conductive material eg of graphite and / or of metal particles, fibers, etc., for example of aluminum).
  • the viscous mass may comprise a polymer which thermosets.
  • the extrudate solidifies by evaporation of a material component, wherein an open porosity for the gas conductivity can arise.
  • the extrudate by a reaction of different reaction components (such as epoxy or the like resins) solidifies.
  • the slurry body is surrounded by a protective layer which protects it from oxidation during the production of the hydride storage tank until it is put into operation.
  • a mold 1 which is filled with a slurry 2, which has a hydrogenatable material 3, in particular a hydrogenatable metal, and
  • Fig. 1 shows a mold 1 which is filled with a slurry 2, comprising a hydrogenatable material 3, in particular a hydrogenatable metal.
  • the slip 2 has a liquid fraction before the production of a blank (see at 4).
  • the mold 1 absorbs the liquid 4 at least in the region 5 adjoining the mold 1, which is marked with a dashed line in FIG. 1, so that the slurry 2 solidifies in this region 5.
  • the liquid 4 may be, for example, in addition to water, an organic solvent, in particular when using a polymer in the hydrogenatable material 3 to be soaked.
  • the solidification can be accelerated by supplying heat from the mold 1 to the slurry 2.
  • the mold 1 can be provided with an integrated (eg electrically operated) heater or be heated from outside (eg by radiant heat or convection).
  • the solidification can be accelerated by hydrogenating the hydrogenatable material 3.
  • Hydrogenation, ie. the hydrogen uptake of the hydrogenatable material 3 can be realized by supplying hydrogen 6 through channels 7 arranged in the mold 1.
  • a portion 8 of the slurry 2 preferably remains liquid, which is poured out of the mold.
  • the slip 2 according to this embodiment, moreover, a polymer which forms a support structure. The polymer is used in addition to the protection against oxidation of the hydrogenatable material, especially the cohesion of the particles of the hydrogenatable material, which arise when using the solidified slip as a hydrogen storage component.
  • the hydrogenatable material expands (and also warms) in the hydrogen uptake, which in the course of time can lead to cracking and thus to individual fragments (particles), which is advantageous insofar as the surface of the hydrogenatable material of the component increased, which can thus store more and possibly faster hydrogen.
  • Fig. Figure 2 shows schematically that the slurry 2 can be poured onto a conveyor belt 10 to form a slip belt. Depending on the consistency and nature of the slurry, it can also be processed as a multi-component slip casting in ribbon form. The Schlickergussband would then have several layers one above the other or side by side, which would flow out of the reservoir 12 in the manner of a laminar flow.
  • a process for producing a hydrogen-storing component of a hydrogen storage device comprising the following steps: a) preparing a slip comprising a hydrogenatable material, in particular a hydrogenatable metal, b) preparing a blank, preferably a layer, from the slip containing the hydrogenatable material, c) Remove liquid from the blank and make
  • a method according to item 1 or 2 characterized in that the slurry is poured into a mold for the preparation of the blank and then the liquid is removed from the mold, wherein preferably the mold is a container which later serves as a closed hydrogen storage.
  • Method according to one of the preceding figures characterized in that at least one mold is partially filled with slurry, then at least one other material is introduced into the mold and then the partially filled with slurry mold is further filled with slurry.
  • the blank receives a profiling on the surface during the manufacturing process, preferably by means of a comb.
  • the slip with at least one a graphite material is produced, preferably with at least one naturally expanded graphite.
  • a blank with the hydrogenatable metal is produced from the slurry, wherein the blank is deposited in a helical or helical form, in a wound roll, as a folded or superimposed layer.
  • the slurry is produced with a suspended, hydrogenatable metal and with fibers, wherein the fibers of the later produced from the slurry hydrogen storage component gives a higher strength and a higher thermal conductivity.
  • Apparatus for producing a component of a hydrogen storage preferably a hydrogen storage component of a hydrogen storage
  • a container is provided at least for providing the slurry, preferably for producing a slurry, with at least a first supply of hydrogenatable metal and with an opening through which the slurry exits for further processing.
  • Device characterized in that the device has a die for creating blanks from the slurry and is connected to a further processing unit in which the blanks moisture is removed and components of the hydrogen storage are formed. 13.
  • the device according to item 11 or 12 characterized in that the container is provided with at least a second supply of graphite.
  • Device 12 or 13, characterized in that the further processing unit subsequently follows a station for assembling the components into a hydrogen storage.
  • Device according to one of the numbers 11 to 14, characterized in that a supply of prefabricated material is provided for the arrangement between the components.
  • Device according to one of the preceding figures, characterized in that a Profilierstation is provided for profiling of at least one surface of the component.
  • Component preferably produced by a process according to any one of items 1 to 10, in particular preferably produced by a device according to any one of items 11 to 16, comprising at least one porous body made of a slip casting containing a first hydrogenatable material and preferably a thermally conductive material, wherein the component is intended for use in a hydrogen storage.
  • Component according to one of the preceding paragraphs 17 to 19 characterized in that the component in the container helical, wound structure and / or several components are stacked.
  • Component according to any of the items 17 to 20 characterized in that the first hydrogenatable material is a low temperature hydride and the component comprises a second hydrogenatable material which is a high temperature hydride.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Fuel Cell (AREA)
  • Hydrogen, Water And Hydrids (AREA)

Abstract

Procédé de fabrication d'un élément pour un accumulateur d'hydrogène, selon lequel est préparée une barbotine qui contient un matériau accumulateur d'hydrogène. La barbotine est introduite dans un moule et de l'humidité est extraite de ladite barbotine pour produire un corps. L'élément d'accumulateur d'hydrogène est produit à partir de ce corps.
PCT/EP2015/059738 2014-05-05 2015-05-04 Élément accumulateur d'hydrogène en barbotine et dispositif et procédé associés Ceased WO2015169758A1 (fr)

Applications Claiming Priority (2)

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DE102014006379.8 2014-05-05
DE102014006379.8A DE102014006379A1 (de) 2014-05-05 2014-05-05 Wasserstoffspeichernde Komponenten aus Schlicker nebst Vorrichtung und Verfahren dafür

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WO2015169758A1 true WO2015169758A1 (fr) 2015-11-12

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DE102014006369A1 (de) 2014-05-05 2015-11-05 Gkn Sinter Metals Engineering Gmbh Wasserstoffspeicher rnit einem Verbundmaterial und ein Verfahren zur Herstellung

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