Hydrogen storage component and preparation method of hydrogen storage component
By using multi-layer structure hydrogen storage components in solid hydrogen storage materials, using fiber layer support and thermal conductivity to improve thermal conductivity, the problems of easy powderization and poor thermal conductivity of solid hydrogen storage materials are solved, and higher strength and resistance to deformation are achieved Capacity and thermal conductivity.
Patent Information
- Application Number
- CN202411539688.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-02-07
AI Technical Summary
Solid hydrogen storage materials have easy pulverization and poor thermal conductivity, which affects their hydrogen absorption and discharge performance and safety, limiting their practical application.
Using a multi-layer structure hydrogen storage member composed of fibers, hydrogen storage materials and thermally conductive materials, the thermal conductivity of the structure is improved through the fiber layer support and thermally conductive materials, and the structure is fixed through the bond to reduce the deformation of the material during hydrogen absorption and discharge. and powder.
It improves the strength, deformation resistance and thermal conductivity of hydrogen storage materials, extends the service life, and increases the adaptability range of solid hydrogen storage materials.
Smart Images
Figure CN119393671A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of hydrogen storage technology, and in particular to a hydrogen storage component and a method for preparing the hydrogen storage component. Background Art
[0002] At present, solid-state hydrogen storage materials have become a key technology with the greatest development potential for hydrogen storage and transportation due to their many advantages such as high volume density, low hydrogen storage pressure, and high safety. However, solid-state hydrogen storage materials are prone to pulverization and have poor thermal conductivity, which seriously affects their hydrogen absorption and desorption performance and safety, and restricts their practical applications. Therefore, improving the thermal conductivity of hydrogen storage materials and improving their anti-pulverization ability are the key to improving the performance of hydrogen storage materials. Summary of the invention
[0003] The purpose of this application is to provide a hydrogen storage component and a method for preparing the hydrogen storage component, which to a certain extent solves the technical problems in the prior art that the hydrogen storage materials are easy to pulverize and have poor thermal conductivity, which seriously affect their hydrogen absorption and desorption performance and safety.
[0004] The present application provides a hydrogen storage component, comprising: a support layer and a hydrogen storage layer; wherein the number of the support layer and the hydrogen storage layer are both multiple layers, and are alternately arranged in sequence along a preset direction, and the support layer and the hydrogen storage layer are bonded together by an adhesive; the support layer is formed by fibers, and the hydrogen storage layer is formed by a mixture of hydrogen storage material and heat conductive material.
[0005] In the above technical solution, further, along the preset direction, the first layer and the last layer are both the support layers.
[0006] In any of the above technical solutions, further, the last support layer is formed with grooves running through both ends thereof along the second preset direction.
[0007] In any of the above technical solutions, further, the last support layer itself is bent to form the groove.
[0008] In any of the above technical solutions, further, the support layer is formed of carbon fiber.
[0009] In any of the above technical solutions, further, the adhesive is a mixture of epoxy resin and curing agent.
[0010] In any of the above technical solutions, further, the hydrogen storage material and the heat conductive material are both powdered substances.
[0011] In any of the above technical solutions, further, the method for preparing the hydrogen storage component comprises the following steps:
[0012] The inner cavity of the mold is filled with fibers, and then a mixed powder of a thermal conductive material and a hydrogen storage material with a preset compaction thickness is laid on the fibers along a preset direction, and then fibers are laid on the mixed powder layer, and this process is repeated until the mold is filled and the last layer is carbon fiber;
[0013] A perfusion pipe connected to the inner cavity of the mold is arranged on at least one side of the mold, and a vacuum tube is placed in the groove formed by the last layer of carbon fiber to seal the entire mold, and then the inner cavity of the mold is evacuated through the vacuum tube, and then a liquid adhesive is injected into the entire mold by vacuum perfusion to bond and fix the carbon fiber, hydrogen storage material and thermal conductive material together;
[0014] After curing is completed, the vacuum tube is taken out and this groove serves as a channel for hydrogen to enter and exit.
[0015] In any of the above technical solutions, further, after the last layer of carbon fiber is laid, a release agent is coated on the surface of the carbon fiber.
[0016] In any of the above technical solutions, further, a perfusion tube connected to the inner cavity of the mold is provided on both opposite sides of the mold.
[0017] The present application also provides a method for preparing a hydrogen storage component, which is used to prepare the hydrogen storage component described in any of the above technical solutions. Therefore, it has all the beneficial technical effects of the hydrogen storage component, which will not be described in detail here.
[0018] In the above technical solution, further, the preparation method of the hydrogen storage component comprises the following steps:
[0019] The inner cavity of the mold is filled with fibers, and then a mixed powder of a thermal conductive material and a hydrogen storage material with a preset compaction thickness is laid on the fibers along a preset direction, and then fibers are laid on the mixed powder layer, and this process is repeated until the mold is filled and the last layer is carbon fiber;
[0020] A perfusion pipe connected to the inner cavity of the mold is arranged on at least one side of the mold, and a vacuum tube is placed in the groove formed by the last layer of carbon fiber to seal the entire mold, and then the inner cavity of the mold is evacuated through the vacuum tube, and then a liquid adhesive is injected into the entire mold by vacuum perfusion to bond and fix the carbon fiber, hydrogen storage material and thermal conductive material together;
[0021] After curing is completed, the vacuum tube is taken out and this groove serves as a channel for hydrogen to enter and exit.
[0022] In any of the above technical solutions, further, after the last layer of carbon fiber is laid, a release agent is coated on the surface of the carbon fiber.
[0023] In any of the above technical solutions, further, a perfusion tube connected to the inner cavity of the mold is provided on both opposite sides of the mold.
[0024] Compared with the prior art, the beneficial effects of this application are:
[0025] The present application provides a novel hydrogen storage structure, which is mainly composed of fibers, hydrogen storage materials, thermal conductive materials and adhesives, wherein the fiber layer supports the hydrogen storage materials and thermal conductive materials to enhance the strength of the structure, the hydrogen storage materials and thermal conductive materials mainly improve the heat exchange properties of the structure, and the adhesive mainly fixes the entire structure to keep it in a certain shape, thereby reducing material deformation and pulverization caused by the expansion of the hydrogen storage material during the process of absorbing and releasing hydrogen.
[0026] It can be seen that the hydrogen storage structure provided by the present application has high strength, strong deformation resistance, longer service life, and high anti-powdering ability and thermal conductivity, which makes the solid-state hydrogen storage material have a wider range of adaptability.
[0027] The present application also provides a method for preparing a hydrogen storage component. The hydrogen storage material prepared by this method can not only enhance the thermal conductivity of the hydrogen storage material, but also prevent the deformation and pulverization of the material caused by the expansion of the hydrogen storage material during the absorption and release of hydrogen. Moreover, this preparation method is simple and efficient, and hydrogen storage materials of different lengths and thicknesses can be set according to the filling amount, thereby greatly improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0029] Figure 1 A schematic diagram of the structure of a hydrogen storage component provided in an embodiment of the present application;
[0030] Figure 2 A schematic diagram of the preparation process of the hydrogen storage component provided in an embodiment of the present application.
[0031] Reference numerals:
[0032] 1-fiber layer, 11-first fiber layer, 12-last fiber layer, 13-groove, 2-hydrogen storage layer, 3-mold, 4-infusion tube, 5-vacuum tube. DETAILED DESCRIPTION
[0033] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.
[0034] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.
[0035] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.
[0036] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0037] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0038] Refer to the following Figure 1 and Figure 2 The present invention describes a hydrogen storage component and a method for preparing the hydrogen storage component according to some embodiments of the present application.
[0039] Embodiment 1
[0040] See also Figure 1 As shown, an embodiment of the present application provides a hydrogen storage component, comprising: a support layer and a hydrogen storage layer 2; wherein the support layer is formed by fibers, that is, the support layer is a fiber layer 1, and the hydrogen storage layer 2 is formed by a mixture of a hydrogen storage material and a thermal conductive material; the number of the support layer, i.e., the fiber layer 1 and the hydrogen storage layer 2 are both multiple layers, and are alternately arranged in sequence along a preset direction, and the support layer, i.e., the fiber layer 1 and the hydrogen storage layer 2 are bonded together by an adhesive.
[0041] According to the structure described above, the present application provides a new type of hydrogen storage structure, which is mainly composed of fibers, hydrogen storage materials, thermal conductive materials and adhesives, wherein the supporting layer, namely the fiber layer 1, plays the role of supporting the hydrogen storage material and the thermal conductive material to enhance the strength of the structure, the hydrogen storage material and the thermal conductive material mainly improve the heat exchange performance of the structure, and the adhesive mainly plays the role of fixing the entire structure to keep it in a certain shape, so as to reduce the deformation and pulverization of the material caused by the expansion of the hydrogen storage material during the absorption and desorption of hydrogen.
[0042] It can be seen that the hydrogen storage structure provided by the present application has high strength, strong deformation resistance, longer service life, and high anti-powdering ability and thermal conductivity, which makes the solid-state hydrogen storage material have a wider range of adaptability.
[0043] In this embodiment, preferably, the adhesive is a mixture of epoxy resin and curing agent.
[0044] According to the structure described above, epoxy resin has good chemical stability, mechanical properties and dielectric properties, but when used alone, it is still insufficient in hardness, strength and toughness. Therefore, adding a curing agent can react chemically with the epoxy resin to cure the resin into a hardened body, thereby improving hardness and toughness. Moreover, the addition of a curing agent can improve the chemical inertness and hydrophilicity of the epoxy resin, and improve its chemical resistance and corrosion resistance, that is, improve its comprehensive performance.
[0045] In this embodiment, preferably, Figure 1 As shown, along the preset direction, the first layer and the last layer are both support layers, namely, fiber layers 1 , that is, along the preset direction, the structure of the first layer is the first fiber layer 11 , and the structure of the last layer is the last fiber layer 12 .
[0046] According to the structure described above, it can be seen that the fiber layer 1 is provided on both the first layer and the last layer of the hydrogen storage component, which helps to improve the overall strength and stability of the structure.
[0047] In this embodiment, preferably, Figure 1 As shown, the last support layer, that is, the last fiber layer 12, is formed with grooves 13 running through both ends thereof along the second preset direction.
[0048] According to the structure described above, the groove 13 serves to place the vacuum tube 5 when preparing the hydrogen storage component, and after the vacuum tube 5 is taken out after the preparation, the groove 13 serves as a channel for hydrogen flow.
[0049] Further, preferably, Figure 1As shown, the last support layer, that is, the last fiber layer 12, is bent by itself to form a groove 13, that is, the shape of the last fiber layer 12 is adapted to the shape of the groove 13, and preferably, pressure can be applied to the fiber layer 1 to form it into this shape. Of course, it is not limited to this and can also be designed according to actual needs.
[0050] In this embodiment, preferably, each supporting layer is formed of carbon fibers.
[0051] In this embodiment, preferably, the hydrogen storage material and the heat conductive material are both powdered substances.
[0052] According to the structure described above, the hydrogen storage material and the thermal conductive material both adopt a powder structure, which makes the hydrogen storage material and the thermal conductive material mixed more evenly, and the overall thermal conductivity is more uniform and better, ensuring the uniformity of hydrogen charging and discharging of the hydrogen storage component as a whole.
[0053] In this embodiment, preferably, Figure 1 As shown, the hydrogen storage component is semi-cylindrical. Of course, it is not limited to this. The hydrogen storage component can also be rectangular, or other shapes, etc., which can be designed according to actual needs.
[0054] In this embodiment, preferably, the aforementioned thermally conductive material may be one or more of graphite, carbon nanotubes and foamed aluminum. Of course, it is not limited thereto, and other types of thermally conductive materials may be selected according to actual needs.
[0055] In this embodiment, preferably, Figure 1 As shown, the hydrogen storage material may be a solid magnesium-based hydrogen storage material. Of course, it is not limited thereto, and may be other types of hydrogen storage materials, which may be selected according to actual needs.
[0056] Embodiment 2
[0057] See also Figure 2 As shown, the second embodiment of the present application also provides a method for preparing a hydrogen storage component, which is used to prepare the hydrogen storage component described in the above-mentioned first embodiment. Therefore, it has all the beneficial technical effects of the hydrogen storage component, and the same technical features and beneficial effects are not repeated.
[0058] In this embodiment, preferably, Figure 2 As shown, the preparation method of the hydrogen storage component comprises the following steps:
[0059] The inner cavity of the mold 3 is filled with fibers, and then a mixed powder of a thermal conductive material and a hydrogen storage material with a preset compaction thickness is laid on the fibers along a preset direction, and then fibers are laid on the mixed powder layer, and this process is repeated until the mold 3 is filled and the last layer is carbon fibers;
[0060] A perfusion pipe 4 connected to the inner cavity of the mold 3 is provided on at least one side of the mold 3, and a vacuum tube 5 is placed in the groove 13 formed by the last layer of carbon fiber to seal the entire mold 3, and then the inner cavity of the mold 3 is evacuated through the vacuum tube 5, and then a liquid adhesive is injected into the entire mold 3 by vacuum perfusion to bond and fix the carbon fiber, hydrogen storage material and thermal conductive material together;
[0061] After the curing is completed, the vacuum tube 5 is taken out, and the groove 13 serves as a passage for the hydrogen to enter and exit.
[0062] According to the structure described above, the hydrogen storage material prepared by this method can not only enhance the thermal conductivity of the hydrogen storage material, but also prevent the deformation and pulverization of the material caused by the expansion of the hydrogen storage material during the absorption and desorption of hydrogen. Moreover, this preparation method is simple and efficient, and hydrogen storage materials of different lengths and thicknesses can be set according to the filling amount, greatly improving efficiency.
[0063] Furthermore, preferably, the hydrogen storage component is semi-cylindrical, and the cavity of the mold 3 is semi-cylindrical. Of course, it is not limited to this. The hydrogen storage component may also be rectangular, or other shapes, etc. Correspondingly, the cavity of the mold 3 is rectangular and compatible with the hydrogen storage material, or the cavity of the mold 3 is other shapes, etc., which are specifically designed according to actual needs. In addition, it should be noted that the overall shape of the mold 3 can be designed according to actual needs, for example, it can be a rectangular structure with a cavity, etc.
[0064] Further, preferably, the perfusion pipe 4 is arranged on one side of the width direction of the mold 3. Of course, it is not limited to this, and the perfusion pipe 4 can also be arranged on one side of the height direction of the mold 3, etc.
[0065] In this embodiment, preferably, after the last layer of carbon fibers is laid, a release agent is coated on the surface of the carbon fibers.
[0066] According to the structure described above, a release agent is coated on the surface of the last layer of carbon fiber to facilitate demoulding from the vacuum tube 5 and avoid adhesion.
[0067] In this embodiment, preferably, Figure 2 As shown, on opposite sides of the mold 3 , perfusion tubes 4 communicating with the inner cavity of the mold 3 are provided.
[0068] According to the structure described above, the injection pipes 4 are arranged on both opposite sides of the mold 3, which can ensure the uniformity of the injection, thereby contributing to the overall anti-deformation and anti-powdering capabilities. Of course, not limited to this, the injection pipe 4 can also be arranged on only one side of the mold 3.
[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A hydrogen storage component, characterized in that: include: A support layer and a hydrogen storage layer; wherein the number of the support layer and the hydrogen storage layer are both multiple layers, and they are alternately arranged in sequence along a preset direction, and the support layer and the hydrogen storage layer are bonded together by an adhesive; the support layer is formed by fibers, and the hydrogen storage layer is formed by a mixture of hydrogen storage material and thermal conductive material.
2. The hydrogen storage component according to claim 1, characterized in that Along the preset direction, the first layer and the last layer are both the supporting layers.
3. The hydrogen storage member according to claim 1, characterized in that: The last support layer is formed with grooves running through both ends thereof along a second preset direction.
4. The hydrogen storage component according to claim 3, characterized in that: The last support layer is bent upon itself to form the groove.
5. The hydrogen storage component according to claim 1, characterized in that: The support layer is formed of carbon fibers.
6. The hydrogen storage component according to claim 1, characterized in that The adhesive is a mixture of epoxy resin and curing agent.
7. The hydrogen storage member according to any one of claims 1 to 6, characterized in that: The hydrogen storage material and the heat conductive material are both powdery substances.
8. A method for preparing a hydrogen storage component, characterized in that: The preparation method of the hydrogen storage component comprises the following steps: The inner cavity of the mold is filled with fibers, and then a mixed powder of a thermal conductive material and a hydrogen storage material with a preset compaction thickness is laid on the fibers along a preset direction, and then fibers are laid on the mixed powder layer, and this process is repeated until the mold is filled and the last layer is carbon fiber; A perfusion pipe connected to the inner cavity of the mold is arranged on at least one side of the mold, and a vacuum tube is placed in the groove formed by the last layer of carbon fiber to seal the entire mold, and then the inner cavity of the mold is evacuated through the vacuum tube, and then a liquid adhesive is injected into the entire mold by vacuum perfusion to bond and fix the carbon fiber, hydrogen storage material and thermal conductive material together; After curing is completed, the vacuum tube is taken out and this groove serves as a channel for hydrogen to enter and exit.
9. The method for preparing a hydrogen storage component according to claim 8, characterized in that: After laying the last layer of carbon fiber, apply a release agent to the surface of the carbon fiber.
10. The method for preparing a hydrogen storage component according to claim 8, characterized in that: Perfusion pipes communicating with the inner cavity of the mold are arranged on opposite sides of the mold.