Preparation device of structural super capacitor

Abstract

The utility model relates to the technical field of super capacitor preparation, in particular to a preparation device of a structural super capacitor, which comprises a molding frame body provided with a cavity opened from the top end and used for accommodating slurry capable of forming the structural super capacitor and enabling the slurry to be condensed and formed; and the molding partition plate is arranged in the cavity and divides the cavity into an electrolyte bin and an electrode bin. According to the manufacturing device, the electrolyte bin and the electrode bin are arranged by utilizing the molding frame body and the molding partition plate, so that slurry can be condensed and hardened in one manufacturing device to form an electrode and an electrolyte of the structural super capacitor, and the structural super capacitor is integrally manufactured; the defect that the electrode and the electrolyte are difficult to match and assemble due to deformation of the slurry in the condensation and hardening processes is avoided, the interface contact performance of the structural supercapacitor is improved, and the energy storage performance and the mechanical performance of the structural supercapacitor are further greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of supercapacitor preparation, and particularly to a preparation device for a structural supercapacitor. Background Art

[0002] Modern residential and commercial buildings consume approximately 40% of the total energy consumption. To promote the low-carbonization of the construction industry, the concept of "zero-energy buildings" has been proposed, which is widely regarded as the development goal of future buildings. Among various research strategies and means, replacing traditional building components with structural energy storage devices has great potential for storing electrical energy while withstanding external loads. Among various types of structural energy storage devices, the building structural supercapacitor assembled from a cement electrode and a cement electrolyte has attracted attention due to its satisfactory electrochemical energy storage capacity and mechanical properties.

[0003] However, the cement electrode and the cement electrolyte are separately fabricated and produced. Due to deformation during the setting and hardening processes, the matching degree of the contact surface between the cement electrode and the cement electrolyte is relatively low. Furthermore, after being assembled into a structural supercapacitor, the gap between the cement electrode and the cement electrolyte varies greatly, and finally the adjacent interface between the electrode and the electrolyte is uneven, resulting in a significant reduction in the energy storage performance and mechanical properties of the structural supercapacitor. Summary of the Utility Model

[0004] The present application aims to solve at least one of the technical problems existing in the related art. For this purpose, the present application provides a preparation device for a structural supercapacitor, which can enable the slurry to condense and harden in one device to form the electrode and electrolyte of the structural supercapacitor, integrally fabricate the structural supercapacitor, avoid the defect that it is difficult to match and assemble the electrode and the electrolyte due to deformation during the condensation and hardening processes of the slurry, improve the interface contact performance of the structural supercapacitor, and thus greatly improve the energy storage performance and mechanical properties of the structural supercapacitor.

[0005] The present application provides a preparation device for a structural supercapacitor, and the preparation device includes:

[0006] A plastic mold frame body having a cavity that is open at its top for accommodating the slurry that can form a structural supercapacitor and enabling the slurry to condense and form a mold.

[0007] A plastic mold partition is disposed in the cavity and divides the cavity into an electrolyte chamber and an electrode chamber.

[0008] According to a preparation device for a structural supercapacitor provided by an embodiment of the present application, the plastic mold partition extends linearly upward from the bottom surface of the cavity to the open mouth of the cavity in the vertical direction and extends from one side of the plastic mold frame body to the other side along a concave-convex curve in the horizontal direction.

[0009] A preparation device for a structural supercapacitor provided by an embodiment of the present application. Two of the plastic mold partitions are arranged in parallel in the cavity, dividing the cavity into a layered structure with electrode chambers at both ends and an electrolyte chamber in the middle, for integrally manufacturing a structural supercapacitor.

[0010] A preparation device for a structural supercapacitor provided by an embodiment of the present application. The plastic mold frame is composed of a bottom plate and several side plates. The several side plates are detachably connected to the bottom plate and are sequentially connected end to end to enclose the cavity.

[0011] A preparation device for a structural supercapacitor provided by an embodiment of the present application. A groove is formed on the upper surface of the bottom plate, and the lower ends of the side plates are inserted into the groove.

[0012] A preparation device for a structural supercapacitor provided by an embodiment of the present application. Fixing holes are formed on the bottom plate, and the fixing holes penetrate from the bottom surface of the groove to the lower surface of the bottom plate;

[0013] Threaded holes are formed on the lower end surfaces of the side plates. When the lower ends of the side plates are inserted into the groove, the threaded holes are aligned with the fixing holes, which can be used to install fastening bolts.

[0014] A preparation device for a structural supercapacitor provided by an embodiment of the present application. The plastic mold partitions are detachably inserted on the upper surface of the bottom plate.

[0015] A preparation device for a structural supercapacitor provided by an embodiment of the present application. The thickness of the plastic mold partitions is between 1 mm and 3 mm.

[0016] A preparation device for a structural supercapacitor provided by an embodiment of the present application. A current collector positioning groove is provided on each of the side walls of the plastic mold partitions facing each other, for embedding a current collector in the electrode chamber.

[0017] A preparation device for a structural supercapacitor provided by an embodiment of the present application. The width of the current collector positioning groove is between 0.5 mm and 1 mm.

[0018] One or more of the above technical solutions in the present application have at least one of the following technical effects: The preparation device uses a plastic mold frame and a plastic mold partition to set up an electrolyte chamber and an electrode chamber, enabling the slurry to coagulate and harden in one preparation device to form the electrodes and electrolyte of a structural supercapacitor, integrally fabricating a structural supercapacitor, avoiding the defect that it is difficult to match and assemble the electrodes and electrolyte due to deformation during the coagulation and hardening process of the slurry, improving the interfacial contact performance of the structural supercapacitor, and thus greatly improving the energy storage performance and mechanical performance of the structural supercapacitor.

[0019] In addition to the technical problems solved by the present application, the technical features of the technical solutions constituted, and the advantages brought by these technical features described above, the other technical features of the present application and the advantages brought by these technical features will be further described in conjunction with the accompanying drawings, or understood through the practice of the present application. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following will briefly introduce the drawings required to be used in the description of the embodiments or related technologies. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0021] Figure 1 It is a schematic three-dimensional structure diagram of the preparation device for a structural supercapacitor provided by an embodiment of the present application.

[0022] Figure 2 It is a schematic top view of the bottom plate in the preparation device provided by an embodiment of the present application.

[0023] Reference Numerals:

[0024] 100, plastic mold frame; 110, cavity; 111, electrolyte chamber; 112, electrode chamber; 120, bottom plate; 121, groove; 122, fixing hole; 123, slot; 130, side plate; 200, plastic mold partition; 300, current collector. Detailed Embodiments

[0025] To make the objectives, technical solutions, and advantages of the present application clearer, the following will clearly describe the technical solutions in the present application in conjunction with the drawings in the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present application.

[0026] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of 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 should not be construed as a limitation to the embodiments of the present application. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0027] In the description of the embodiments of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected to" 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 directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0028] In the embodiments of the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0029] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0030] Since the 21st century, people have begun to seek new energy sources such as solar energy and wind energy to solve the problems of traditional energy depletion and pollution. However, the intermittency and volatility of new energy power generation have caused the problem of mismatching between energy supply and demand. Therefore, it has become a research trend to use energy storage materials to store the generated electric energy for rational utilization.

[0031] In the prior art, the structural energy storage device includes a structural battery, a structural supercapacitor, and a structural dielectric capacitor. Compared with the structural dielectric capacitor, the structural supercapacitor has a higher energy density. Compared with the structural battery, the structural supercapacitor has a higher power density and durability.

[0032] At the same time, modern residential and commercial buildings consume about 40% of the total energy consumption. In order to promote the low-carbonization of the construction industry, the concept of "zero-energy building" has been put forward, which is also widely regarded as the development goal of future buildings. Among various research strategies and means, using a structural energy storage device to replace traditional building components has great potential for storing electric energy while withstanding external loads.

[0033] Cement is a cheap insulating material widely used in the field of civil engineering, with developed internal pores, which can serve as channels for ionic conductivity. Using cement as the material for making a structural supercapacitor can effectively improve the mechanical properties and dimensional stability of the structural supercapacitor, while reducing the cost of the structural supercapacitor. Among various types of structural energy storage devices, the building structural supercapacitor assembled from cement electrodes and cement electrolytes has attracted attention due to its satisfactory electrochemical energy storage capacity and mechanical properties.

[0034] To fabricate a fully cement-based structural supercapacitor, cement needs to be first mixed with water to form a slurry in a liquid state. Then, the slurry is poured into a mold for making a cement electrolyte or a cement electrode, and the slurry is allowed to initially set in the mold. After demolding the set and hardened cement electrolyte or cement electrode, a curing treatment is carried out to further improve the mechanical properties of the cement electrolyte or cement electrode. Finally, the cement electrode and the cement electrolyte are combined to form a fully cement-based structural supercapacitor.

[0035] However, the cement electrolyte or cement electrode may undergo shrinkage or expansion deformation during the setting and hardening process as well as the curing process, which is likely to result in a low matching degree of the joint surface between the cement electrode and the cement electrolyte.

[0036] In order to integrally fabricate a fully cement-based structural supercapacitor and solve the defect that it is difficult to match and assemble the electrode and the electrolyte due to deformation during the setting and hardening of the cement slurry, in the embodiments of the present application, a preparation device for a structural supercapacitor is introduced.

[0037] Such as Figure 1 AndFigure 2 As shown, the preparation device includes a molding frame 100 and a molding partition 200.

[0038] Among them, the molding frame 100 has a cavity 110 that is open at its top. This cavity 110 is used to accommodate the liquid slurry and cause the liquid slurry to solidify and form according to the shape surrounded by the outer peripheral wall of the cavity 110. The molding partition 200 is installed in the cavity 110 and divides the cavity 110 into two non-connected regions. In particular, these two regions are used for coagulation and hardening, making electrolytes and electrodes, that is, the molding partition 200 divides the cavity 110 into an electrolyte chamber 111 and an electrode chamber 112, thereby integrally manufacturing a structural supercapacitor.

[0039] The slurry for making the all-cement structural supercapacitor is mainly composed of cement and water, and other polymers or admixtures for improving ionic conductivity can also be incorporated.

[0040] Specifically, the steps for integrally manufacturing the all-cement structural supercapacitor using the above preparation device include:

[0041] After uniformly stirring the cement electrolyte slurry and the cement electrode slurry, pour them into the corresponding electrolyte chamber 111 and electrode chamber 112 respectively to cause the slurry to undergo preliminary coagulation. Then, according to the coagulation state of the slurry, when it reaches about 1 / 4 of the initial setting time, remove the molding partition 200 from the molding frame 100.

[0042] After that, perform vibration treatment on both the molding frame 100 and the preliminarily coagulated structural supercapacitor. For example, vibrate slightly 30 times.

[0043] Finally, place the molding frame 100 and the preliminarily coagulated structural supercapacitor under standard curing conditions for curing.

[0044] After curing for 1 day, perform demolding treatment on the structural supercapacitor and cure it under standard curing conditions until the preset age. That is, after curing for 1 day, separate the structural supercapacitor from the molding frame 100 and let the structural supercapacitor cure alone under standard curing conditions until the preset age. Thus, the all-cement structural supercapacitor is made.

[0045] To facilitate the separation of the molding frame 100 from the structural supercapacitor, the molding frame 100 is provided to be composed of a side plate 130 and a bottom plate 120 that are detachably connected. Among them, the cavity 110 of the molding frame 100 is composed of a plurality of flat side plates 130 connected end to end in sequence to form a through-walled periphery at both ends and a bottom plate 120 covering one end of the periphery.

[0046] Thus, after the cement slurry placed in the cavity 110 has set and hardened for 1 day, the demolding process can be completed by removing the side plates 130 from the bottom plate 120 one by one. This avoids scratching and damaging the all-cement structure supercapacitor during the demolding process.

[0047] Furthermore, in another embodiment of the present application, a groove 121 for embedding the side plate 130 is provided on the surface of the bottom plate 120. In this way, the side plate 130 is snap-fitted with the side of the bottom plate 120 through the groove 121, so that a plurality of side plates 130 surround the bottom plate 120 to form a plastic mold frame 100 with a cavity 110. After the cement slurry has set and hardened in the plastic mold frame for 1 day, the side plates 130 can be removed one by one from the outer peripheral side of the plastic mold frame to complete the demolding process.

[0048] In this embodiment, the preparation device uses the plastic mold frame and the plastic mold partition to set up the electrolyte chamber 111 and the electrode chamber 112, which can cause the slurry to set and harden in a preparation device to form the electrodes and electrolytes of the structure supercapacitor, and integrally manufacture the structure supercapacitor, avoiding the defect that it is difficult to match and assemble the electrodes and electrolytes due to deformation during the setting and hardening process of the slurry, improving the interfacial contact performance of the structure supercapacitor, and thus greatly improving the energy storage performance and mechanical performance of the structure supercapacitor.

[0049] As Figure 1 and Figure 2 shown, in another embodiment of the present application, a preparation device for a structure supercapacitor is provided. The preparation device further improves the structural performance and electrochemical performance of the interface between the cement electrode and the cement electrolyte in the all-cement structure supercapacitor by arranging a plastic mold partition 200 with a concave-convex structure in the cavity 110.

[0050] Specifically, the plastic mold partition 200 extends linearly upward from the bottom surface of the cavity 110 of the plastic mold frame 100 in the vertical direction to the open mouth of the cavity 110, and the plastic mold partition 200 extends along a concave-convex curve from one side of the plastic mold frame 100 to the other side in the horizontal direction, so that the plate surface of the plastic mold partition 200 presents a concave-convex structure.

[0051] Generally, in order to increase the energy storage performance of the structure supercapacitor, the size ratio of the electrolyte to the electrode is controlled to be greater than a certain value, resulting in a very small thickness of the electrode. Correspondingly, in the preparation device of the all-cement structure supercapacitor, the thickness of the electrode chamber 112 is much smaller than the thickness of the electrolyte chamber 111. For the all-cement structure supercapacitor, when the thickness of the cement electrode is too small, it is difficult to withstand a large structural force.

[0052] Therefore, the molded separator 200 is provided with a concave-convex structure. After injecting cement slurry into the electrolyte chamber 111 and the electrode chamber 112 with the molded separator 200 as the dividing surface and allowing it to coagulate and harden, the interface where the cement electrolyte and the cement electrode come into contact and fit presents a jagged and interlocking shape, which can not only increase the structural force that the cement electrode can withstand but also avoid reducing the energy storage performance of the all-cement structure supercapacitor.

[0053] Based on the above embodiments, another embodiment of the present application introduces a preparation device for a structural supercapacitor to integrally produce a sandwich-structured supercapacitor.

[0054] Two molded separators 200 are arranged in parallel in the cavity 110, dividing the cavity 110 into a layered structure with electrode chambers 112 at both ends and an electrolyte chamber 111 in the middle, for integrally manufacturing a structural supercapacitor.

[0055] Specifically, the two molded separators 200 are symmetrically arranged in the cavity 110, forming a layered structure with two electrode chambers 112 sandwiching the electrolyte chamber 111 in the middle.

[0056] Based on the above embodiments, another embodiment of the present application introduces a preparation device that facilitates the demolding of a structural supercapacitor. In this preparation device, the molding frame 100 is composed of a bottom plate 120 and several side plates 130. The several side plates 130 are detachably connected to the bottom plate 120 and are sequentially connected end to end to enclose the cavity 110.

[0057] Specifically, a groove 121 is opened on the upper surface of the bottom plate 120. The lower ends of the side plates 130 are inserted into the groove 121. Thus, after the cement slurry placed in the cavity 110 coagulates and hardens for 1 day, by removing the side plates 130 from the bottom plate 120 one by one, the demolding process can be completed. This avoids the mold scraping and damaging the all-cement structure supercapacitor during the demolding process.

[0058] Based on the above embodiments, another embodiment of the present application introduces a preparation device for a structural supercapacitor with more stable connections.

[0059] In this preparation device, fixing holes 122 are opened on the bottom plate 120. And the fixing holes 122 penetrate from the bottom surface of the groove 121 to the lower surface of the bottom plate 120.

[0060] Threaded holes are opened on the lower end surfaces of the side plates 130. When the lower ends of the side plates 130 are inserted into the groove 121, the threaded holes are aligned with the fixing holes 122, which can be used to install fastening bolts. The fastening bolts pass through the fixing holes 122 and are meshed and connected with the threaded holes.

[0061] Based on the above embodiments, another embodiment of the present application introduces a preparation device for a structural supercapacitor. Using this preparation device, it is possible to more conveniently remove the plastic mold partition 200 from the plastic mold frame 100 when the all-cement structural supercapacitor is initially coagulated.

[0062] Specifically, a slot 123 for clamping the plastic mold partition is provided on the upper surface of the bottom plate 120. The plastic mold partition is detachably inserted into the upper surface of the bottom plate 120.

[0063] Based on the above embodiments, in order to make the contact performance between the cement electrolyte and the cement electrode better, in another embodiment of the present application, the thickness of the plastic mold partition is set to 1 mm - 3 mm.

[0064] Based on the above embodiments, another embodiment of the present application introduces a preparation device capable of embedding a current collector 300 in the electrode of a structural supercapacitor. The current collector 300 can establish an ion transport channel for the cement electrode and the cement electrolyte, greatly improving the ion conductivity of the all-cement structural supercapacitor. In the prior art, the current collector 300 generally uses a nickel foam plate.

[0065] Specifically, current collector positioning grooves are respectively provided on the plastic mold partition 200 and the side plate 130 of the plastic mold frame 100.

[0066] The current collector positioning grooves are located on the side walls of the plastic mold partition 200 and the side plate 130 facing each other, and are used to movably place the current collector 300 in the electrode chamber 112. During the process of integrally manufacturing the all-cement structural supercapacitor using the preparation device, first, the nickel foam plate is fixed in the electrode chamber 112 by using the current collector positioning grooves, and then the cement slurry is poured into the plastic mold frame 100. In this way, the nickel foam plate is coagulated and hardened with the cement electrode into one body, having high structural performance and electrochemical performance.

[0067] Based on the above embodiments, in another embodiment of the present application, the width of the current collector positioning groove is set to 0.5 mm - 1 mm, so that the gap between the nickel foam plate and the current collector positioning groove is smaller, avoiding cement from entering the current collector positioning groove.

[0068] Preferably, the current collector positioning groove is provided at the position with the widest gap between the plastic mold partition 200 and the side plate 130, which can increase the contact surface between the current collector 300 and the cement electrode, and further improve the ion conductivity of the all-cement structural supercapacitor.

[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 them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

[0070] The foregoing is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A preparation device for a structural supercapacitor, characterized in that, Comprising: A molding frame (100) having a cavity (110) that is open at its top end for accommodating a slurry capable of forming a structural supercapacitor and causing the slurry to solidify and form a shape; A molding partition (200) disposed within the cavity (110) and partitioning the cavity (110) into an electrolyte chamber (111) and an electrode chamber (112).

2. The preparation device of the structural supercapacitor according to claim 1, characterized in that, The molding partition (200) extends linearly upward from the bottom surface of the cavity (110) to the open mouth of the cavity (110) in the vertical direction and extends along a concave-convex curve from one side of the molding frame (100) to the other side of the molding frame (100) in the horizontal direction.

3. The preparation device of the structural supercapacitor according to claim 2, wherein, Two of the molding partitions (200) are arranged in parallel within the cavity (110), partitioning the cavity (110) into a layered structure with the electrode chambers (112) at both ends and the electrolyte chamber (111) in the middle, for integrally manufacturing a structural supercapacitor.

4. The manufacturing apparatus of the structural supercapacitor according to any one of claims 1-3, characterized in that, The molding frame (100) is composed of a bottom plate (120) and a plurality of side plates (130), and the plurality of side plates (130) are detachably connected to the bottom plate (120) and are sequentially connected end to end to enclose the cavity (110).

5. The manufacturing apparatus of the structural supercapacitor according to claim 4, characterized in that, A groove (121) is formed on the upper surface of the bottom plate (120), and the lower ends of the side plates (130) are inserted into the groove (121).

6. The preparation device of the structural supercapacitor according to claim 5, characterized in that, Fixing holes (122) are formed on the bottom plate (120), and the fixing holes (122) penetrate from the bottom surface of the groove (121) to the lower surface of the bottom plate (120); Threaded holes are formed on the lower end surfaces of the side plates (130). When the lower ends of the side plates (130) are inserted into the groove (121), the threaded holes are aligned with the fixing holes (122), which can be used for installing fastening bolts.

7. The manufacturing apparatus of the structural supercapacitor according to claim 4, characterized in that, The molding partition (200) is detachably inserted into the upper surface of the bottom plate (120).

8. The manufacturing apparatus of the structural supercapacitor according to claim 7, characterized in that, The thickness of the molding partition (200) is between 1 mm and 3 mm.

9. The manufacturing apparatus of the structural supercapacitor according to claim 4, characterized in that, A current collector positioning groove is provided on each of the side walls of the molding partition (200) facing the side plates (130) for embedding a current collector (300) within the electrode chamber (112).

10. The preparation device of the structural supercapacitor according to claim 9, characterized in that, The width of the current collector positioning groove is between 0.5 mm and 1 mm.

Images