Cement-based battery wallboard integration device

Abstract

The utility model provides a cement base cell wallboard integrated device, include: the steel mould of assembling, by four steel sheets connection constitution, two short side steel sheet side wall set up the baffle reserved slot, two long side steel sheet side wall set up have the wire reserved hole, two smooth baffle, both ends insert corresponding baffle reserved slot, and separate out cathode area, electrolyte area and anode area, promote positioning mechanism, its fixed frame includes two parallelly arranged long pole and sets up a plurality of short pole between two long poles, telescopic link sets up on corresponding short pole, each telescopic link's lower extreme is provided with baffle lifting unit, baffle lifting unit with two the smooth baffle is detachable connection, the fixed link sets up in fixed frame's both sides, the clamp sets up in corresponding fixed link's lower extreme, each clamp is used for clamping positioning corresponding side's current collector mesh piece. The utility model discloses integrated device, can solve cement base cell wallboard interlayer interface contact bad, current collector offset problem.

Description

[Technical Field]

[0001] This utility model relates to the field of building energy storage technology, specifically to a cement-based battery wall panel integrated device. [Background Technology]

[0002] While solar, wind, and tidal energy sources offer the advantage of being clean, their instability necessitates a large "sponge" for balance. Therefore, to balance clean production and efficient grid integration, new energy power systems need to be equipped with energy storage methods capable of peak shaving and valley filling. Currently, commonly used energy storage methods include chemical energy storage (lithium batteries, lead-acid batteries, etc.) and physical energy storage (flywheels, pumped hydro storage, etc.), but they each have their own drawbacks, such as the gradual depletion of lithium mines, safety and environmental pollution issues caused by electrolyte leaks, mechanical stress and fatigue, and geographical limitations. Cement is the most widely used man-made material to date, while water is the most abundant compound on Earth. Mixing the two through a hydration reaction yields cement stone, the most widely used inorganic non-metallic material in civil engineering. Building-based energy storage offers advantages such as low cost, environmental friendliness, lack of geographical limitations, noiselessness, and large energy storage capacity.

[0003] By installing solar panels on the building roof, solar energy can be converted into electrical energy, and excess electrical energy can be stored in cement-based batteries in the walls, realizing the integrated distributed generation, storage, and use of energy in the building. This meets the building's own power consumption needs for lighting, ventilation, etc., and significantly increases the scale of energy storage.

[0004] However, traditional electrochemical energy storage systems are difficult to adapt to building scenarios due to the flammability of liquid electrolytes (flash point <60℃) and defects in mechanical properties (compressive strength <5MPa). In contrast, cement-based structural batteries exhibit unique advantages with their innovative five-layer all-solid-state stacked architecture. This architecture, through a solid-solid coupling design of current collector-cement-based composite electrode-cement-based composite electrolyte-cement-based composite electrode-current collector, successfully integrates the dual functions of mechanical load-bearing capacity and electrochemical energy storage, adapting to the needs of integrated building wall structure and energy storage.

[0005] During charging, the cement-based battery converts electrical energy into chemical energy and stores it through an external power source. Specifically, the electrolyte inside the battery undergoes ion migration under the influence of an electric field, with positive and negative ions moving towards the cathode and anode, respectively, and being stored in the corresponding electrode materials. At this time, the cathode material typically undergoes an oxidation reaction, while the anode material undergoes a reduction reaction.

[0006] During discharge, the stored chemical energy is converted into electrical energy to power an external load. As the battery discharges, ions stored in the electrode materials migrate back into the electrolyte, while the cathode and anode electrode materials undergo redox reactions that are the reverse of the charging process. In this way, cement-based batteries achieve charge storage and release, providing a highly efficient and environmentally friendly energy storage solution. The main function of the current collector is to collect electrons from the electrode materials and efficiently conduct them to the external circuitry.

[0007] Cement-based composite electrolytes provide channels for ion transport, ensuring efficient ion migration between electrodes during charge and discharge. Their ionic conductivity and electrochemical stability are crucial to the battery's charge and discharge performance. The cement-based composite electrodes on both sides support electrochemical reactions, promoting the conversion between electrical and chemical energy. Their high conductivity and large specific surface area help improve the efficiency of electrochemical reactions, thereby enhancing the battery's energy storage performance. Finally, current collectors placed outside the electrodes on both sides collect current, ensuring that the current can be efficiently conducted from the electrodes to the external circuit, thereby improving the overall conductivity of the battery.

[0008] However, the solid-solid interface contact problem in existing cement-based batteries is a key factor restricting performance improvement. Because the cement-based composite electrode, cement-based composite electrolyte, and cement-based composite electrode in existing cement-based batteries are cast separately—one functional layer is cast and initially set before the next functional layer is cast—the surface roughness between the cement-based electrode and the cement-based electrolyte is high, resulting in poor contact and an effective contact area of ​​less than 60%. These poorly contacted areas cannot effectively transfer ions, forming electrochemical dead zones that severely affect the battery's electrochemical performance. Furthermore, in cement-based batteries, the cathode, anode, and electrolyte materials are prefabricated using cement-based materials, and the electrode and electrolyte materials are in solid-solid interface contact. Mechanically, lateral forces can cause the materials to bend and separate; materially, the interfacial obstruction created by construction joints reduces the ion throughput between the electrolyte and the positive and negative electrodes, weakening the battery's power density.

[0009] Meanwhile, the difference in expansion rate between each layer during layered casting leads to excessive interfacial shear stress (e.g., when the expansion rate of the upper layer is 0.03% and that of the lower layer is 0.01%, the interfacial shear stress can reach 2.5MPa), inducing interlayer delamination and through cracks (width > 0.2mm), reducing the bending stiffness of the wall panel (attenuation rate ≥ 30%).

[0010] Therefore, there is a need to develop an integrated device for cement-based battery wall panels to solve the solid-solid interface contact problem in cement-based batteries. [Utility Model Content]

[0011] The technical problem to be solved by this utility model is to provide an integrated device for cement-based battery wall panels, which is an integrated device that can solve the problems of poor interlayer contact and current collector misalignment in cement-based battery wall panels.

[0012] This utility model is implemented as follows:

[0013] A cement-based battery wall panel integrated device, comprising:

[0014] The modular steel mold is composed of four steel plates connected together. The top of the modular steel mold is open and the bottom is provided with a base plate. The side walls of the two short side steel plates are provided with partition reserved slots, and the side walls of the two long side steel plates are provided with wire reserved holes.

[0015] Two smooth-surfaced partitions are inserted into corresponding partition pre-reserved slots at both ends, dividing the interior of the assembled steel mold into a cathode area, an electrolyte area, and an anode area.

[0016] The lifting and positioning mechanism includes a fixed frame, telescopic rods, fixed rods, and clamps. The fixed frame includes two parallel long rods and multiple short rods disposed between the two long rods. The telescopic rods are disposed on the corresponding short rods. Each telescopic rod has a partition lifting part at its lower end, and the partition lifting part is detachably connected to the two smooth partitions. The fixed rods are disposed on both sides of the fixed frame, and the clamps are disposed at the lower ends of the corresponding fixed rods. Each clamp is used to clamp and position the collector mesh on the corresponding side.

[0017] Furthermore, the four steel plates are connected by bolts and angle irons.

[0018] Furthermore, the location of the wire pre-drilled hole corresponds to the current collector installation area.

[0019] Furthermore, the depth of the pre-reserved groove in the partition is 1 / 3 of the thickness of the corresponding steel plate, and a polytetrafluoroethylene wear-resistant layer is provided in the groove.

[0020] Furthermore, the telescopic rod of the lifting and positioning mechanism passes through the telescopic hole on the corresponding short rod, and the telescopic rod and the telescopic hole are fitted with a clearance tolerance of ≤0.5mm; multiple corresponding limiting holes are provided on the telescopic rods at both ends of the lifting and positioning mechanism, and the limiting is achieved by the limiting bolts being inserted laterally into the limiting holes located above the short rods.

[0021] Furthermore, the lower end of the telescopic rod has a double-ended threaded bolt for lifting the partition. The lower end of the telescopic rod is fixed to the middle of the double-ended threaded bolt. A connecting hole corresponding to the double-ended threaded bolt is provided above the two smooth partitions. The two ends of the double-ended threaded bolt pass through the corresponding connecting holes on the two smooth partitions and are then fixed by nuts.

[0022] Furthermore, the clamp is a flexible metal gripper with anti-slip texture at the end.

[0023] Furthermore, the smooth partition is a polypropylene smooth partition.

[0024] Furthermore, the upper end of each of the telescopic rods is fixed to a connecting rod.

[0025] The advantages of this utility model are:

[0026] This invention relates to an integrated device for cement-based wall panels. Using this device, cement-based wall panels can be manufactured in a fully cast-in-place, one-piece molding process, solving the problem of poor interlayer contact in cement-based battery wall panels. The device uses a smooth-surfaced polypropylene board as the interface material separator, which improves the smoothness of the interlayer interface and further increases the effective contact area, thus contributing to improved electrochemical performance of the cement-based battery wall panel.

[0027] The lifting and positioning mechanism is equipped with fixing rods and clamps on both sides, which can solve the positioning problem of the collector during the casting process and ensure that the collector and the wall panel are integrated after demolding, thereby improving its integrity and conductivity.

[0028] In summary, this utility model has a simple structure and is easy to operate, enabling efficient and rapid integrated molding of cement-based wall panels and increasing the effective contact area of ​​their interlayer interfaces. [Attached Image Description]

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of a cement-based battery wall panel integrated device according to the present invention.

[0031] Figure 2 yes Figure 1 Enlarged view of part A in the middle.

[0032] Figure 3 This is a schematic diagram of the assembled steel mold structure of a cement-based battery wall panel integrated device according to this utility model.

[0033] Figure 4 This is a three-dimensional structural diagram of the assembled steel mold of the cement-based battery wall panel integrated device of this utility model, which is inserted into a smooth partition.

[0034] Figure 5 This is a side sectional view of the assembled steel mold inserted into the smooth partition of a cement-based battery wall panel integrated device according to this utility model.

[0035] Figure 6 This is a schematic diagram of the lifting and positioning mechanism of a cement-based battery wall panel integrated device according to this utility model.

Detailed Implementation Methods

[0036] The following will be combined with the appendix Figure 1-6 The technical solution of this utility model will be clearly and completely described in conjunction with specific embodiments. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] Please see Figures 1 to 6 As shown, the present invention provides a cement-based battery wall panel integration device, comprising:

[0039] The assembled steel mold 1 is composed of four steel plates 11 connected together. The top of the assembled steel mold 1 is open and the bottom is provided with a base plate. The side walls of the two short side steel plates 11 are provided with partition reserved grooves 12, and the side walls of the two long side steel plates 11 are provided with wire reserved holes 13.

[0040] Two smooth-surfaced partitions 2 are inserted into corresponding partition pre-reserved slots 12 at both ends, and the interior of the assembled steel mold 1 is divided into a cathode area, an electrolyte area and an anode area.

[0041] The lifting and positioning mechanism 3 includes a fixed frame 31, a telescopic rod 32, a fixed rod 33, and a clamp 34. The fixed frame 31 includes two parallel long rods 311 and a plurality of short rods 312 disposed between the two long rods 311. The telescopic rods 32 are disposed on the corresponding short rods 312. Each telescopic rod 32 has a partition lifting part at its lower end, and the partition lifting part is detachably connected to the two smooth partitions 2. The fixed rods 33 are disposed on both sides of the fixed frame 31, and the clamps 34 are disposed at the lower ends of the corresponding fixed rods 33. Each clamp 34 is used to clamp and position the collector mesh 100 on the corresponding side.

[0042] In a preferred embodiment, the four steel plates 11 are connected by bolts 14 and angle irons 15.

[0043] In a preferred embodiment, the position of the wire pre-reserved hole 13 corresponds to the current collector installation area.

[0044] In a preferred embodiment, the depth of the pre-reserved groove 12 in the partition is 1 / 3 of the thickness of the corresponding steel plate 11, and a polytetrafluoroethylene wear-resistant layer is provided in the groove.

[0045] In a preferred embodiment, the telescopic rod 32 of the lifting and positioning mechanism 3 passes through the telescopic hole on the corresponding short rod 312, and the telescopic rod 32 and the telescopic hole are fitted with a clearance tolerance of ≤0.5mm; the upper end of each telescopic rod is fixed to a connecting rod, and multiple corresponding limiting holes 321 are provided on the telescopic rods 32 at both ends of the lifting and positioning mechanism 3, and the height of the telescopic rod 32 is limited by the limiting bolts inserted laterally into the limiting holes located above the short rods 312.

[0046] In a preferred embodiment, the lower end of the telescopic rod 32 has a partition lifting part that is a double-ended threaded bolt 35. The lower end of the telescopic rod 32 is fixed to the middle of the double-ended threaded bolt 35. A connecting hole corresponding to the double-ended threaded bolt 35 is provided above the two smooth partitions 2. The two ends of the double-ended threaded bolt 35 pass through the corresponding connecting holes on the two smooth partitions 2 and are then fixed by nuts 36.

[0047] In a preferred embodiment, the clamp 34 is an elastic metal claw with anti-slip texture at the end.

[0048] In specific implementation, a preferred embodiment is as follows:

[0049] In another embodiment of this utility model, the specific manufacturing steps of the cement-based battery wall panel integration device are as follows:

[0050] Step 1: Make the modular steel mold 1. The mold consists of bolts 14, angle iron 15 and steel plate 11. The steel mold uses four steel plates 11, which facilitates mold disassembly and transportation. The steel plates 11 are fixed together with bolts 14 and angle iron 15.

[0051] Step 2: After the mold is assembled, a partition groove 12 is set in the steel mold. Two polypropylene smooth partitions 2 are installed in the corresponding partition grooves 12, and the interior of the assembled steel mold 1 is divided into a cathode area, an electrolyte area and an anode area.

[0052] Step 3: The current collector mesh 100 is divided into a cathode current collector and an anode current collector. The cathode current collector uses a nickel-plated stainless steel mesh to avoid passivation of the mesh in an oxidizing environment, while the anode current collector uses a stainless steel mesh. First, the wires of the current collector mesh 100 with soldered wires are passed through the corresponding wire pre-drilled holes 13. Then, the two current collector meshes 100 are placed into the cathode and anode areas of the steel mold, respectively. Next, the lifting and positioning mechanism 3 is positioned above the assembled steel mold 1 (the fixing frame 31 can be fixed using an auxiliary device). The two ends of the double-headed threaded bolts 35 at the lower end of the telescopic rod 32 are passed through the corresponding connecting holes on the two smooth partition plates 2, and then fixed with nuts 36. Finally, the clamps 34 on both sides of the lifting and positioning mechanism 3 are used to clamp the current collector mesh 100, thus fixing it in place.

[0053] Step 4: Simultaneously and in layers, the electrolyte and electrode materials are poured into the corresponding cathode, electrolyte, and anode areas of the assembled steel mold 1. The height of the cement-based wall panel is set to 60 cm. After the electrolyte and electrode materials are poured to a thickness of 10 cm, the smooth partition 2 is lifted by 10 cm using the telescopic rod 32 of the lifting positioning mechanism 3 (after the telescopic rod 32 is lifted uniformly, the limiting bolt is inserted horizontally into the corresponding height limiting hole 321 located above the short rod 312 to achieve height positioning), and the first vibration begins; after pouring another 10 cm thick layer, the smooth partition 2 is lifted by 10 cm, and the second vibration begins, and so on, until the smooth partition 2 is completely lifted out of the assembled steel mold 1 and poured and vibrated, the cement-based wall panel is completed.

[0054] Furthermore, before the final layer pouring, the clamp 34 can be separated from the collector mesh 100, and the lifting and positioning mechanism 3 can be removed, along with the smooth partition plate 2, before the final layer pouring is performed. After final curing, the mold can be removed, and the cement-based wall panel is now complete.

[0055] In summary, using the integrated device of this invention, the cement-based cathode, anode, and electrolyte layer of a cement-based battery wall panel can be cast simultaneously in a single operation. The lifting and positioning mechanism allows for temporary fixation of the current collector and enables the smooth partition to be lifted during casting. This invention enables the continuous, one-time casting of the entire cement-based battery wall panel, avoiding interlayer cold joints, air bubble accumulation, or material shrinkage differences caused by layered casting. It significantly improves the interfacial bonding strength between the cement matrix and the embedded electrode / conductive material at the interlayer interface, further increasing the effective contact area at the interlayer interface and ensuring the continuity of ion transport and electrochemical stability of the energy storage unit (electrode-electrolyte interface).

[0056] While specific embodiments of the present invention have been described above, those skilled in the art should understand that the specific embodiments described are merely illustrative and not intended to limit the scope of the present invention. Equivalent modifications and variations made by those skilled in the art in accordance with the spirit of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A cement-based battery wall panel integrated device, characterized in that: include: The modular steel mold is composed of four steel plates connected together. The top of the modular steel mold is open and the bottom is provided with a base plate. The side walls of the two short side steel plates are provided with partition reserved slots, and the side walls of the two long side steel plates are provided with wire reserved holes. Two smooth-surfaced partitions are inserted into corresponding partition pre-reserved slots at both ends, dividing the interior of the assembled steel mold into a cathode area, an electrolyte area, and an anode area. The lifting and positioning mechanism includes a fixed frame, telescopic rods, fixed rods, and clamps. The fixed frame includes two parallel long rods and multiple short rods disposed between the two long rods. The telescopic rods are disposed on the corresponding short rods. Each telescopic rod has a partition lifting part at its lower end, and the partition lifting part is detachably connected to the two smooth partitions. The fixed rods are disposed on both sides of the fixed frame, and the clamps are disposed at the lower ends of the corresponding fixed rods. Each clamp is used to clamp and position the collector mesh on the corresponding side.

2. The cement-based battery wall panel integrated device according to claim 1, characterized in that: The four steel plates are connected by bolts and angle irons.

3. The cement-based battery wall panel integrated device according to claim 1, characterized in that: The location of the wire pre-drilled hole corresponds to the current collector installation area.

4. The cement-based battery wall panel integrated device according to claim 1, characterized in that: The depth of the pre-reserved groove in the partition is 1 / 3 of the thickness of the corresponding steel plate, and a polytetrafluoroethylene wear-resistant layer is provided in the groove.

5. The cement-based battery wall panel integrated device according to claim 1, characterized in that: The telescopic rod of the lifting and positioning mechanism passes through the telescopic hole of the corresponding short rod, and the telescopic rod and the telescopic hole are fitted with a clearance tolerance of ≤0.5mm; the upper end of each telescopic rod is fixed to a connecting rod, and multiple corresponding limiting holes are provided on the telescopic rods at both ends of the lifting and positioning mechanism, and the limiting is achieved by the limiting bolts being inserted laterally into the limiting holes located above the short rods.

6. The cement-based battery wall panel integrated device according to claim 1, characterized in that: The lower end of the telescopic rod has a double-ended threaded bolt for lifting the partition. The lower end of the telescopic rod is fixed to the middle of the double-ended threaded bolt. A connecting hole corresponding to the double-ended threaded bolt is provided above the two smooth partitions. The two ends of the double-ended threaded bolt pass through the corresponding connecting holes on the two smooth partitions and are then fixed by nuts.

7. The cement-based battery wall panel integrated device according to claim 1, characterized in that: The clamp is a flexible metal gripper with anti-slip texture at the end.

8. The cement-based battery wall panel integrated device according to claim 1, characterized in that: The smooth partition is a polypropylene smooth partition.

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