Composite sintered titanium plate and electrolytic bath for producing hydrogen by electrolyzing water

Abstract

The utility model provides a composite sintered titanium plate and a water electrolysis hydrogen production electrolytic bath using the composite sintered titanium plate, and the composite sintered titanium plate comprises at least one layer of supporting net (10) which is of a preset net structure; the at least one layer of sintered titanium plate (11) is bonded with the at least one layer of supporting net (10) through a preset plate body structure; wherein the at least one layer of sintered titanium plate (11) and the at least one layer of supporting net (10) are integrally formed into a composite plate (1) with a preset thickness; according to the composite sintered titanium plate, the bonding face of the sintered titanium plate (11) and the supporting net (10) can be set to be in a specific shape, the sintered titanium plate (11) is pressed to be thin on the basis that higher sintering bonding strength is formed, and the water permeability or the water passing performance is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of titanium metal preparation, and more particularly to a composite sintered titanium plate and an electrolytic water hydrogen production electrolytic cell. BACKGROUND

[0002] Titanium and its alloy materials are widely used in chemical industry, medical treatment, aerospace, etc. due to their excellent corrosion resistance, high strength and low density characteristics. The sintered titanium plate, as a porous titanium material prepared by sintering titanium powder, has good air permeability, corrosion resistance and mechanical strength, and has irreplaceable advantages in filtration, separation and especially in electrolytic water hydrogen production electrolytic cell.

[0003] The sintered titanium plate on the market is widely made by directly sintering titanium powder. This technology realizes the sintering of the sintered titanium plate by controlling the sintering temperature, time and titanium powder particle size distribution. In practice, due to the existing sintering technology, the thickness of the sintered titanium plate is generally in the range of 0.5-1mm. However, the sintered titanium plate with too large thickness will significantly reduce the water permeability or water passing performance, and it is difficult to meet the needs of efficient filtration and separation. SUMMARY

[0004] The present application provides a composite sintered titanium plate. The bonding surface of the sintered titanium plate and the support net is provided with a specific shape, which can thin the sintered titanium plate on the basis of forming a stronger sintering bonding strength, and improve the water permeability or water passing performance.

[0005] In a first aspect, the present application provides a composite sintered titanium plate, comprising:

[0006] at least one layer of support net adopting a preset net structure;

[0007] at least one layer of sintered titanium plate bonded with the at least one layer of support net through a preset plate body structure; wherein,

[0008] The at least one layer of sintered titanium plate and the at least one layer of support net are integrally formed into a composite plate with a preset thickness.

[0009] In an optional solution of the first aspect, the at least one layer of support net adopts a titanium net or a non-titanium net.

[0010] In an optional solution of the first aspect, the at least one layer of support net adopts at least one of a drawn net, a woven net, a honeycomb net and a plated net.

[0011] In an optional solution of the first aspect, the single layer of sintered titanium plate is bonded with the at least one layer of support net through a preset plate body structure.

[0012] In an optional solution of the first aspect, the at least one layer of support net is clamped between and integrally formed with the plurality of layers of sintered titanium plate of the preset plate structure.

[0013] In an optional solution of the first aspect, the bonding surface of the at least one layer of sintered titanium plate and the at least one layer of support net is provided as at least one ladder-shaped partition, and the cross section of the at least one ladder-shaped partition is convex in the height direction at one end of the cross section than at the other end of the cross section.

[0014] In an optional solution of the first aspect, the bonding surface of the at least one layer of sintered titanium plate and the at least one layer of support net is provided as a corrugated structure.

[0015] In an optional solution of the first aspect, the bonding surface of the at least one layer of sintered titanium plate and the at least one layer of support net is provided as a groove structure, and the at least one layer of support net is at least partially embedded in the groove structure.

[0016] In an optional solution of the first aspect, the at least one layer of sintered titanium plate and the at least one layer of support net are integrally formed as a composite plate with a thickness of 0.01-0.05 mm.

[0017] In a second aspect, the present application provides an electrolytic cell for producing hydrogen by electrolysis of water using the composite sintered titanium plate.

[0018] It should be understood that the general description above and the following detailed description are only exemplary and do not limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate one or more embodiments of the present application and, together with the description, serve to explain the principles of the present application and to enable a person skilled in the relevant art to make and use the present application.

[0020] Figure 1 is a structural schematic diagram of an exemplary composite sintered titanium plate according to some embodiments of the present application.

[0021] Figure 2 is a structural schematic diagram of an exemplary pull net and single ladder-shaped partition sintered titanium plate according to some embodiments of the present application.

[0022] Figure 3 is a structural schematic diagram of an exemplary woven net and multiple ladder-shaped partition sintered titanium plate according to some embodiments of the present application.

[0023] Figure 4 is a structural schematic diagram of an exemplary honeycomb net and corrugated structure sintered titanium plate according to some embodiments of the present application.

[0024] Figure 5is a structural schematic of an exemplary plated mesh and grooved structure sintered titanium plate according to some embodiments of the present application.

[0025] Figure 6 is a structural schematic of an exemplary multi-layer support mesh and single layer sintered titanium plate according to some embodiments of the present application.

[0026] Figure 7 is a structural schematic of an exemplary multi-layer sintered titanium plate and single layer support mesh according to some embodiments of the present application.

[0027] Figure 8 is a structural schematic of an exemplary pulled mesh and single stepped partition and corrugated structure sintered titanium plate according to some embodiments of the present application.

[0028] Figure 9 is a structural schematic of an exemplary plated mesh and grooved structure and corrugated structure sintered titanium plate according to some embodiments of the present application.

[0029] Figure 10 is a structural schematic of an exemplary pulled mesh and multiple stepped partition and grooved structure sintered titanium plate according to some embodiments of the present application.

[0030] Figure 11 is a structural schematic of an exemplary pulled mesh and honeycomb mesh and grooved structure, multiple stepped partition and corrugated structure sintered titanium plate according to some embodiments of the present application.

[0031] Figure 12 is a structural schematic of an exemplary three layer sintered titanium plate and double layer support mesh according to some embodiments of the present application. DETAILED DESCRIPTION

[0032] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations can be implemented in any

[0033] Currently, when sintering titanium powder into titanium plates 11, to ensure sufficient mechanical strength during filtration or load-bearing, the sintered titanium plates 11 are typically sintered to a thickness of 0.5mm-1mm. However, with increasing requirements for filtration precision and efficiency, the existing thickness of sintered titanium plates 11 is often considered excessive, leading to decreased water permeability and air permeability, making them unsuitable for applications requiring high-efficiency filtration. Therefore, to enhance water permeability, thinner sintered titanium plates 11 are sometimes attempted for certain applications. However, if the thickness of the sintered titanium plate 11 is forcibly reduced during manufacturing, its mechanical strength will decrease due to high porosity and an excessively thin overall structure. This makes it prone to deformation or even breakage during use, failing to meet the requirements for high-strength or long-term stable operation, especially under high pressure or vibration environments, where the plate is easily damaged.

[0034] Therefore, in order to prepare a thinner sintered titanium plate 11, this application adopts the method of directly combining the sintered titanium plate 11 with the support mesh 10 during the sintering process to form an integral composite plate 1 structure; and by rationally designing the plate structure of the sintered titanium plate 11, while ensuring the overall strength of the composite plate 1, the thickness of the sintered titanium plate 11 is reduced as much as possible to solve the problem of insufficient water permeability of the excessively thick sintered titanium plate 11.

[0035] Therefore, for reference Figure 1 The figure shows a schematic diagram of an exemplary composite sintered titanium plate according to some embodiments of this application. This application relates to a composite sintered titanium plate, comprising: at least one layer of support mesh 10 and at least one layer of sintered titanium plate 11, wherein the at least one layer of support mesh 10 is configured into a preset mesh structure according to actual application requirements, including but not limited to one or more of stretched mesh 100, woven mesh 101, honeycomb mesh 102, and plated mesh 103; the at least one layer of sintered titanium plate 11 is configured into a preset plate structure according to actual application requirements, and then the at least one layer of sintered titanium plate 11 and the at least one layer of support mesh 10 are bonded together to form a composite plate 1 of a preset thickness.

[0036] Specifically, according to actual needs, the single-layer support net 10 is made of one of the tensile net 100, the woven net 101, the honeycomb net 102 and the plated net 103, and the multi-layer support net 10 is made of one or more of the tensile net 100, the woven net 101, the honeycomb net 102 and the plated net 103. According to actual needs, if the single-layer sintered titanium plate 11 is used, the single-layer sintered titanium plate 11 is sintered and bonded on one side with at least one layer of the support net 10, and the preset plate structure is arranged in one of at least one ladder-shaped partition, a corrugated structure 112 and a groove structure 113; if the multi-layer sintered titanium plate is used, the at least one layer of the support net 10 is sintered and bonded between any two sintered titanium plates 11, and the preset plate structure is arranged in one or more of at least one ladder-shaped partition, a corrugated structure 112 and a groove structure 113. The preset thickness is exemplarily 0.01-0.05mm in the present application; wherein when the at least one layer of the sintered titanium plate 11 and the at least one layer of the support net 10 are integrally formed by bonding, existing firing equipment and sintering process are used.

[0037] Thus:

[0038] Referring to Figure 2 illustrated, Figure 2 An exemplary structure schematic diagram of a tensile net is shown in some embodiments of the present application. In some embodiments of the present application, a single-layer support net 10 is provided and a titanium net is used, and the support net 10 is arranged in a tensile net 100 structure, that is, the support net 10 has high porosity and rigidity to be suitable for a large-area support scene.

[0039] Specifically, when a titanium net with uniformly distributed diamond-shaped holes is formed by a stretching process, the large-area open hole design can improve water permeability and air permeability, and is suitable for application scenes requiring efficient filtration or larger flow area; at the same time, the titanium net formed by the tensile net 100 process can form a regular rib structure for the net, improve the bending strength and in-plane rigidity, and is suitable for large-area flat support scenes, such as industrial filter plates or large equipment bearing components, flat filter equipment, high-flow filtration systems or panel supports in mechanical components, etc.

[0040] Referring to Figure 3 illustrated, Figure 3 An exemplary structure schematic diagram of a woven net is shown in some embodiments of the present application. In some embodiments of the present application, a single-layer support net 10 is provided and a titanium net is used, and the support net 10 is arranged in a woven net 101 structure, that is, the support net 10 has a certain flexibility to be suitable for complex curved surface support requirements.

[0041] Specifically, when the titanium mesh is formed by the cross-weaving process of the metal wires, the woven mesh 101 structure has greater flexibility and plasticity, and while maintaining a certain flexibility, still has better tensile strength and shear resistance, and can adapt to the surface support requirements of complex curved surfaces or irregular shapes, such as medical implant devices, non-planar filter devices, and other scenarios requiring flexible fitting.

[0042] Reference Figure 4 as shown, Figure 4 A structural schematic diagram of an exemplary honeycomb mesh according to some embodiments of the present application is shown. In some examples of the present application, a single-layer support mesh 10 is provided and a titanium mesh is used, and the support mesh 10 is arranged in a honeycomb mesh 102 structure, i.e., the mesh holes of the support mesh 10 are arranged in a hexagonal grid, to improve the compression and bending resistance by increasing the distribution density of the junctions with the sintered titanium plate 11.

[0043] Specifically, when the titanium mesh is formed in a hexagonal grid arrangement to have a honeycomb shape, the external force can be uniformly dispersed by the geometric characteristics of the hexagonal grid, and the distribution density of the junctions with the sintered titanium plate 11 is increased, so that the connection between the sintered titanium plate 11 and the support mesh 10 is more uniform and compact, thereby improving the overall structural stability of the composite plate 1, and being suitable for high-load filters, structural components, and industrial applications requiring impact resistance.

[0044] Reference Figure 5 as shown, Figure 5 A structural schematic diagram of an exemplary plated mesh according to some embodiments of the present application is shown. In some examples of the present application, a single-layer support mesh 10 is provided and a titanium mesh is used, and the support mesh 10 is arranged in a plated mesh 103 structure, i.e., a layer of corrosion-resistant metal coating (such as chrome plating, stainless steel, etc.) is attached to the surface of the support mesh 10, to be suitable for harsh environments such as strong acids and strong bases.

[0045] Specifically, when the titanium mesh with a layer of corrosion-resistant metal coating attached to the surface is used, by introducing the metal coating, not only the service life of the support mesh 10 in harsh environments such as strong acids, strong bases, and salt spray is improved, but also the smoothness of the surface of the support mesh 10 is increased, and the resistance of the fluid medium is reduced, which is suitable for applications in chemical industry, marine engineering, and other high-corrosion environments.

[0046] Reference Figure 6 as shown, Figure 6 A structural schematic diagram of an exemplary multi-layer support mesh and single-layer sintered titanium plate according to some embodiments of the present application is shown. In some embodiments of the present application, a multi-layer structure is introduced into the support mesh 10, at least two layers of support mesh 10 are used and the same or different mesh hole patterns or material thicknesses are used, the overall support performance is optimized on the basis of slightly increasing the thickness of the composite plate 1, and the bonding effect with the ultra-thin sintered titanium plate 11 is enhanced.

[0047] In some examples of the present application, multiple layers of support mesh 10 are provided and titanium mesh is used, and at least one layer of the support mesh 10 is provided in the form of a tensile mesh 100, so that the support mesh 10 has high porosity and rigidity, and is suitable for scenarios requiring large-area support.

[0048] In some examples of the present application, multiple layers of support mesh 10 are provided and titanium mesh is used, and at least one layer of the support mesh 10 is provided in the form of a woven mesh 101, so that the support mesh 10 has a certain flexibility, and is suitable for support requirements of complex surfaces.

[0049] In some examples of the present application, multiple layers of support mesh 10 are provided and titanium mesh is used, and at least one layer of the support mesh 10 is provided in the form of a honeycomb mesh 102, i.e., the mesh holes of the support mesh 10 are provided in the form of a hexagonal grid, so as to improve the compression and bending resistance by increasing the distribution density of the connection points with the sintered titanium plate 11.

[0050] In some examples of the present application, multiple layers of support mesh 10 are provided and titanium mesh is used, and at least one layer of the support mesh 10 is provided in the form of a plated mesh 103, i.e., a layer of corrosion-resistant metal coating (such as chrome plating, stainless steel, etc.) is attached to the surface of the support mesh 10, so as to be suitable for harsh environments such as strong acid and strong alkali.

[0051] In actual implementation, when the composite sintered titanium plate of the present application is applied in a scenario with low mechanical strength and harsh environment, the support mesh 10 can be provided in the form of a heterogeneous mesh (such as a mesh body made of titanium alloy, composite material, etc.), so as to form a differentiated structure with the sintered titanium plate 11, and improve the performance in special environments (such as high temperature and strong corrosion environment).

[0052] In some embodiments of the present application, in the same composite plate 1, multiple support mesh 10 structures can be combined to meet multiple requirements, for example:

[0053] Different support mesh 10 designs are used in different regions of the same composite plate 1, for example, a woven mesh 101 is used in a filtering region to improve flexibility, and a honeycomb mesh 102 is used in a bearing region to improve compression strength.

[0054] Two or more support mesh 10s are combined in a stacked manner, for example, a woven mesh 101 is provided in the inner layer to provide flexibility, and a tensile mesh 100 or a honeycomb mesh 102 is provided in the outer layer to enhance rigidity, so as to meet multiple functional requirements.

[0055] Reference Figure 2 and Figure 3 are shown, Figure 2 shows a structural schematic diagram of an exemplary single ladder-shaped partitioned sintered titanium plate according to some embodiments of the present application, Figure 3An exemplary structure diagram of a stepped partition sintered titanium plate is shown. In some embodiments of the present application, a single layer of sintered titanium plate 11 is provided and the bonding surface of the single layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a single stepped partition 110 or multiple stepped partitions 111, and the cross section of one or more stepped partitions is convex in the height direction at one end of the cross section than at the other end. The local thickness variation of the one or more stepped partitions forms a stronger sintering bonding force with the contact area of the net, which can not only provide support force, but also reduce the weight.

[0056] Specifically, the cross section of the stepped partition forms a stepped change in the height direction, i.e., one end is convex than the other end, the pressure concentration of the convex area enhances the sintering bonding strength, ensures the firmness of the bonding, and the design of the stepped partition not only can provide sufficient support force, but also can reduce the overall structure weight, so as to be suitable for high-strength equipment with special requirements for light weight, such as aviation parts or portable filtration equipment.

[0057] Reference Figure 4 shown, Figure 4 An exemplary structure diagram of a corrugated structure sintered titanium plate is shown. In some examples of the present application, a single layer of sintered titanium plate 11 is provided and the bonding surface of the single layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a corrugated structure 112; the contact area is increased by the corrugated shape, and the stability of sintering bonding is improved.

[0058] Specifically, the corrugated bonding surface increases the contact area of the sintered titanium plate 11 and the support net 10 by the periodic concave-convex shape, and the greater contact area can improve the stability of sintering bonding, so that the bonding part will not be separated or loose even in a complex mechanical environment; and the corrugated structure 112 can not only provide sufficient strength, but also improve the anti-vibration ability of the overall structure to a certain extent, and is suitable for medium-high pressure filtration equipment, industrial isolation plates and the like which require high stability bonding.

[0059] Reference Figure 5 shown, Figure 5 An exemplary structure diagram of a groove structure sintered titanium plate is shown. In some examples of the present application, a single layer of sintered titanium plate 11 is provided and the bonding surface of the single layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a groove structure 113, and at least one layer of support net 10 is at least partially embedded in the groove structure 113; by several groove structures 113, the support net 10 can be partially embedded in the groove, forming mechanical fitting during sintering process, and enhancing the bonding strength.

[0060] Specifically, the support net 10 is embedded in the sintered titanium plate 11 during the sintering process through the groove structure 113 to form a mechanical embedding, which can provide additional physical locking force and further improve the firmness of the combination of the sintered titanium plate 11 and the support net 10; and the embedded design enables the bonding surface to self-adaptively deform in high-temperature sintering, further improving the fatigue resistance of the overall structure and being suitable for filters or bearing devices in high-load scenarios, such as filter cores of chemical equipment, high-performance catalyst carriers, etc.

[0061] Reference Figure 7 as shown, Figure 7 An exemplary structural schematic diagram of a multi-layer sintered titanium plate and a single-layer support net is shown to illustrate some embodiments of the present application.

[0062] In some embodiments of the present application, the multi-layer sintered titanium plate is provided, and the bonding surfaces of all the multi-layer sintered titanium plates and at least one layer of the support net 10 are arranged as a single ladder-shaped partition 110 or multiple ladder-shaped partitions 111, and the cross section of one or more ladder-shaped partitions protrudes from one end to the other end in the height direction.

[0063] Specifically, the ladder-shaped partitions of the multi-layer sintered titanium plate are stacked on each other to form a multi-stage stepped bonding surface, so that the support net 10 can obtain a greater pressure concentration effect during the bonding process, further enhancing the depth and strength of the sintering combination, and being able to guide stress distribution between the multi-layer sintered titanium plates to reduce the risk of delamination caused by thermal expansion.

[0064] In some examples of the present application, the multi-layer sintered titanium plate is provided, and the bonding surfaces of all the multi-layer sintered titanium plates and at least one layer of the support net 10 are arranged as a corrugated structure 112.

[0065] Specifically, the corrugated structure 112 of the multi-layer sintered titanium plate forms a multi-layer interlocking structure through the close contact of the bonding surface with the support net 10, so that the entire composite plate 1 can further improve the compression and tensile properties after sintering.

[0066] In some examples of the present application, the multi-layer sintered titanium plate is provided, and the bonding surfaces of all the multi-layer sintered titanium plates and at least one layer of the support net 10 are arranged as a groove structure 113.

[0067] Specifically, through the multi-layer groove structure 113, grooves with different widths and depths can be set according to requirements to form a multi-layer multi-point embedding, further enhancing the overall mechanical embedding effect.

[0068] In some embodiments of the present application, the multi-layer sintered titanium plate is provided, and the bonding surfaces of any one layer of the sintered titanium plate 11 and at least one layer of the support net 10 are arranged as a single ladder-shaped partition 110 or multiple ladder-shaped partitions 111, and the bonding surfaces of the other layers of the sintered titanium plate 11 and at least one layer of the support net 10 are arranged as a corrugated structure 112 or a groove structure 113.

[0069] For example, referring to FIG. 1, a single-layer sintered titanium plate 11 and a single-layer support net 10 are provided as an example of a single-layer sintered titanium plate according to some embodiments of the present application. The bonding surface of the single-layer sintered titanium plate 11 and the single-layer support net 10 is provided as a single stepped partition 110. Figure 8 Figure 8 For example, referring to FIG. 2, a single-layer sintered titanium plate 11 and a single-layer support net 10 are provided as an example of a single-layer sintered titanium plate according to some embodiments of the present application. The bonding surface of the single-layer sintered titanium plate 11 and the single-layer support net 10 is provided as a corrugated structure 112.

[0070] Specifically, by combining the stepped partition and the corrugated structure 112, the advantages of lightweight and high bonding strength are achieved; and under the multi-point support of the corrugated contact surface of the support net 10, the compression and tensile properties of the composite plate 1 are further improved.

[0071] In some examples of the present application, multiple layers of sintered titanium plates are provided, and the bonding surface of any one layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a corrugated structure 112, and the bonding surface of the other layers of sintered titanium plate 11 and at least one layer of support net 10 is provided as a single stepped partition 110 or multiple stepped partitions 111 or a groove structure 113.

[0072] For example, referring to FIG. 3, a single-layer sintered titanium plate 11 and a single-layer support net 10 are provided as an example of a single-layer sintered titanium plate according to some embodiments of the present application. The bonding surface of the single-layer sintered titanium plate 11 and the single-layer support net 10 is provided as a groove structure 113. Figure 9 Figure 9 For example, referring to FIG. 4, a single-layer sintered titanium plate 11 and a single-layer support net 10 are provided as an example of a single-layer sintered titanium plate according to some embodiments of the present application. The bonding surface of the single-layer sintered titanium plate 11 and the single-layer support net 10 is provided as a groove structure 113.

[0073] Specifically, the corrugated structure 112 provides vibration resistance, and the groove fitting enhances the local concentration of bonding force, and through the synergistic effect of the corrugated structure 112 and the groove structure 113, the fatigue resistance and durability of the material in complex environments can be improved.

[0074] In some examples of the present application, multiple layers of sintered titanium plates are provided, and the bonding surface of any one layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a groove structure 113, and the bonding surface of the other layers of sintered titanium plate 11 and at least one layer of support net 10 is provided as a single stepped partition 110 or multiple stepped partitions 111 or a corrugated structure 112.

[0075] For example, referring to FIG. 5, a single-layer sintered titanium plate 11 and a single-layer support net 10 are provided as an example of a single-layer sintered titanium plate according to some embodiments of the present application. The bonding surface of the single-layer sintered titanium plate 11 and the single-layer support net 10 is provided as a groove structure 113. Figure 10 Figure 10 For example, referring to FIG. 6, a single-layer sintered titanium plate 11 and a single-layer support net 10 are provided as an example of a single-layer sintered titanium plate according to some embodiments of the present application. The bonding surface of the single-layer sintered titanium plate 11 and the single-layer support net 10 is provided as a groove structure 113.​​​

[0076] Specifically, the deformation of the support net 10 is adapted by the groove to reduce stress concentration at the joint, and the local compressive strength is improved by the ladder-shaped partition.

[0077] In some examples of the present application, the multi-layer sintered titanium plate is provided, and the bonding surface of at least one layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a single ladder-shaped partition 110 or multiple ladder-shaped partitions 111, the bonding surface of at least one layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a groove structure 113, and the bonding surface of at least one layer of sintered titanium plate 11 and at least one layer of support net 10 is provided as a corrugated structure 112.

[0078] Reference Figure 11 As shown, Figure 11 An exemplary groove structure, multiple ladder-shaped partitions, and corrugated structure sintered titanium plate structure diagram of some embodiments of the present application is shown. For example, the bonding surface of at least one layer of sintered titanium plate 11 and single-layer support net 10 is provided as multiple ladder-shaped partitions 111, the bonding surface of at least one layer of sintered titanium plate 11 and single-layer support net 10 is provided as a groove structure 113, and the bonding surface of at least one layer of sintered titanium plate 11 and single-layer support net 10 is provided as a corrugated structure 112. By providing three layers of different structures, it can be applied to composite material applications in high complexity environments.

[0079] In actual implementation, the bonding surface structure of sintered titanium plate 11 and support net 10 can be flexibly adjusted according to the needs of different layers to achieve optimal matching of material performance and adapt to various complex scenarios.

[0080] Therefore, in actual implementation, if multiple layers of sintered titanium plates are provided, at least one layer of support net 10 is sandwiched between the multiple layers of sintered titanium plates and integrally formed. Reference Figure 12 As shown, Figure 12 An exemplary three-layer sintered titanium plate and double-layer support net structure diagram of some embodiments of the present application is shown. For example, the sintered titanium plate 11 is provided as three layers, namely sintered titanium plate I 11a, sintered titanium plate II 11b, and sintered titanium plate III 11c, and the support net 10 is provided as two layers, namely support net I 10a and support net II 10b. During sintering, the support net I 10a is sandwiched between the sintered titanium plate I 11a and the sintered titanium plate II 11b, and the support net I 10b is sandwiched between the sintered titanium plate II 11b and the sintered titanium plate III 11c, and sintering is performed.

[0081] Therefore, the present application also relates to an electrolytic water hydrogen production electrolytic cell using the composite sintered titanium plate of any one of the above embodiments.

[0082] Specifically, since the electrolytic cell for producing hydrogen by electrolyzing water is not improved in the present application, the existing electrolytic cell for producing hydrogen by electrolyzing water is simply introduced, which includes a membrane electrode, an anode flow field structure, a cathode flow field structure, a voltage detection circuit and the like.

[0083] The membrane electrode and the voltage detection circuit are connected with the anode flow field structure and the cathode flow field structure respectively, and the anode flow field structure and the cathode flow field structure are arranged on two sides of the membrane electrode.

[0084] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be the protection scope of the claims.

[0085] Explanation of reference signs:

[0086] 1 composite plate

[0087] 10 support net

[0088] 11 sintered titanium plate

[0089] 100 drawing net

[0090] 101 woven net

[0091] 102 honeycomb net

[0092] 103 plated net

[0093] 110 single gradient partition

[0094] 111 multiple gradient partitions

[0095] 112 corrugated structure

[0096] 113 groove structure

[0097] 10a support net I

[0098] 10b support net II

[0099] 11a sintered titanium plate I

[0100] 11b sintered titanium plate II

[0101] 11c sintered titanium plate III

Claims

1. A composite sintered titanium plate, characterized by, The composite sintered titanium plate comprises: at least two layers of support nets (10) made of at least two of the following: drawn net (100), woven net (101), honeycomb net (102) and plated net (103); wherein the at least two layers of support nets (10) are made of different thicknesses of materials; at least two layers of sintered titanium plates (11) adhered to the at least two layers of support nets (10) through preset plate body structures; wherein the at least two layers of support nets (10) are sandwiched between the multiple layers of sintered titanium plates with preset plate body structures and integrally formed into a composite plate (1) with a preset thickness; the at least two layers of sintered titanium plates (11) are made of different preset plate body structures, which include at least two of the following: stepped partition, corrugated structure (112) and groove structure (113).

2. The composite sintered titanium plate according to claim 1, characterized by The at least one layer of support nets (10) is made of titanium net or non-titanium net.

3. The composite sintered titanium plate of claim 1, wherein The single layer of sintered titanium plate (11) is adhered to the at least one layer of support nets (10) through preset plate body structures.

4. The composite sintered titanium plate of claim 3, wherein The bonding surface of the at least one layer of sintered titanium plate (11) and the at least one layer of support nets (10) is set as at least one stepped partition, and the cross-section of one end of the at least one stepped partition is convex to the other end in the height direction.

5. The composite sintered titanium plate of claim 3, wherein The bonding surface of the at least one layer of sintered titanium plate (11) and the at least one layer of support nets (10) is set as corrugated structure (112).

6. The composite sintered titanium plate of claim 3, wherein The bonding surface of the at least one layer of sintered titanium plate (11) and the at least one layer of support nets (10) is set as groove structure (113), and the at least one layer of support nets (10) is at least partially embedded in the groove structure (113).

7. The composite sintered titanium plate of claim 1, wherein The at least two layers of sintered titanium plates (11) and the at least two layers of support nets (10) are integrally formed into a composite plate (1) with a thickness of 0.01-0.05 mm.

8. An electrolytic cell for producing hydrogen by electrolysis of water, using the composite sintered titanium plate according to any one of claims 1-7.

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