Joule thermal shock automation device
By designing an automated Joule thermal shock device and a graphite sintering stage with a special structure, the problems of complex operation, small sample volume, uneven heat transfer, and easy electrode burnout of existing high-temperature thermal shock devices have been solved, realizing automated batch production of samples and efficient experiments.
Patent Information
- Application Number
- CN202423262933.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing high-temperature thermal shock devices are cumbersome to operate, have complicated sample preparation, limited sample volume, limited vacuum chamber space, uneven heat transfer, are prone to electrode burnout, and have low experimental efficiency.
The design of an automated Joule thermal shock device employs sequentially arranged workstations and a specially structured graphite sintering table, combined with robotic arms and conveyor belts, to achieve automated batch production and rapid continuous heating of samples. The graphite sintering table has high resistance in the middle and low resistance at the ends, ensuring high sample heating temperature and preventing electrode burnout.
It enables automated batch production of samples, improves experimental efficiency, ensures uniform sample heating, prevents electrode burnout, and significantly increases sample throughput, thereby improving production efficiency.
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Figure CN223769255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a Joule thermal shock device, and more particularly to an automated Joule thermal shock device. Background Technology
[0002] Existing high-temperature thermal shock devices mainly consist of four parts: a DC power supply, a heating reaction chamber, a spectrometer, and a vacuum pump. Specifically, the sample material is connected to copper sheets via conductive silver paste and fixed to a glass support. The copper sheets at both ends of the sample are connected to the DC power supply; starting the power supply triggers a high-temperature thermal shock. The spectrometer is used to record the emission spectrum and estimate the sample temperature. Fitting the sample's emission spectrum using the blackbody radiation equation allows analysis of the instantaneous temperature conducted to the sample during the high-temperature thermal shock process. However, this method has the following drawbacks:
[0003] The original method involved wrapping the material with carbon cloth and then sandwiching the cylindrical carbon cloth between the two electrodes. This method is cumbersome and complex in sample preparation; the sample wrapping is prone to leakage; only one sample can be sintered at a time, and the amount of product obtained from each thermal shock is limited; after the sample is sintered, the vacuum chamber needs to be opened, and after the sample is refilled, the vacuum needs to be re-evacuated, wasting 30-40 minutes each time, reducing experimental efficiency; the vacuum chamber of the Joule heating equipment has limited space, which can accommodate fewer components; the traditional graphite sintering stage has uneven heat conduction, tending to heat the two ends of the electrode first, and then the temperature is conducted to the middle, which can easily lead to excessive temperature and burn out the electrode, and the heat transfer is uneven. Summary of the Invention
[0004] To address the aforementioned issues, this invention achieves automated, rapid, and continuous production by designing a sequentially arranged first, second, third, fourth, fifth, sixth, and seventh workstation. Furthermore, by designing the cross-sectional area of the graphite sintering stage in the middle, perpendicular to the length of the strip, to be smaller than that at the ends of the container, the resistance in the middle is higher than that at the ends. This results in a faster heating rate and higher temperature in the middle when the same current is applied. While ensuring a sufficiently high sample heating temperature, the temperature of the graphite sintering stage on both sides of the electrode remains relatively low, preventing electrode burnout.
[0005] The technical solution of this utility model is as follows: an automated Joule thermal shock device, comprising a first station, a second station, a third station, a fourth station, a fifth station, a sixth station, and a seventh station arranged in sequence;
[0006] The first workstation includes at least a plurality of sealed first raw material storage containers, a first tray for placing the first raw material storage containers, and a first robotic arm for gripping and transferring the first raw material storage containers and the first tray, wherein the raw materials are stored in the first raw material storage containers;
[0007] The first workstation stores a large amount of raw materials, which are arranged according to their type for easy access by the first robotic arm.
[0008] The second workstation includes at least a second robotic arm for opening different first raw material storage containers, for sampling and transferring materials as needed, an electronic scale for weighing raw materials, and a second raw material storage container for storing the weighed raw materials.
[0009] The number of raw material storage containers is determined according to the type of raw material used, and the electronic scale weighs the raw materials required for the reaction.
[0010] The third workstation includes at least a third robotic arm for mixing and transferring the raw materials in the second raw material storage container;
[0011] The third robotic arm thoroughly and evenly mixes the raw materials in the second raw material storage container by repeatedly shaking and vibrating them, in preparation for the subsequent reaction.
[0012] The fourth station includes at least a fourth robotic arm for opening the second raw material storage container and loading the raw material in the second raw material storage container into the graphite sintering table; the main body of the graphite sintering table is a hollow strip with openings at both ends, and the cross-sectional area of the middle part of the graphite sintering table perpendicular to the length of the strip is smaller than the cross-sectional area of the end part of the graphite sintering table perpendicular to the length of the strip.
[0013] The structure of the graphite sintering stage results in a high resistance in the middle and a low resistance at the ends. When the same current is applied, the middle part heats up faster and reaches a higher temperature. This ensures that the sample is heated to a sufficiently high temperature while the graphite sintering stage on both sides of the electrode remains at a lower temperature, preventing the electrode from burning out.
[0014] The fifth station includes at least a fifth robotic arm for picking up and placing graphite sintering tables, and a sealed box; the sealed box contains a conveyor belt and a power supply, and the surface of the conveyor belt is provided with several brackets for supporting the graphite sintering tables, the brackets having recesses adapted to the shape of the graphite sintering tables; the sealed box is protected by a vacuum or inert gas; the positive and negative terminals of the power supply are used to connect to both ends of the graphite sintering table, and a thermometer is used to measure the temperature of the middle part of the graphite sintering table after it has been heated by the power supply;
[0015] Generally, the graphite sintering platform is connected by clamping or filled with conical plugs at both ends, but other methods are also possible.
[0016] The sixth station shall include at least a sixth robotic arm for picking up and placing graphite sintering tables;
[0017] The seventh station includes at least a seventh robotic arm for removing finished products from the graphite sintering table, the seventh robotic arm holding a tooling for extending from one end of the graphite sintering table to push the finished product out from the other end of the graphite sintering table.
[0018] By using tooling, the reacted products are ejected from the graphite sintering station for easy collection and later use.
[0019] Furthermore, the graphite sintering platform is cylindrical or cuboid in shape.
[0020] Furthermore, the hollow shape of the graphite sintering platform is a spindle shape, larger in the middle and smaller at both ends. The cross-sectional area of the middle part of the graphite sintering platform is small, while the cross-sectional area of the ends is large, resulting in a high resistance in the middle and a low resistance at the ends.
[0021] Furthermore, the hollow shape of the graphite sintering platform is a stepped shape, larger in the middle and smaller at both ends. The cross-sectional area of the middle part of the graphite sintering platform is small, while the cross-sectional area of the ends is large, resulting in a high resistance in the middle part.
[0022] Furthermore, the hollow shape of the graphite sintering platform is cylindrical, and the outer surfaces at both ends of the graphite sintering platform have raised annular steps. By setting the annular steps, the overall shape of the graphite sintering platform is dumbbell-shaped, with a small cross-sectional area in the middle and a large cross-sectional area at the ends, thereby resulting in a high resistance in the middle.
[0023] Furthermore, the cross-sectional shape of the tooling is adapted to the shape of the openings at both ends of the graphite sintering stage. Generally, when the openings at both ends of the graphite sintering stage are circular, the cross-sectional shape of the tooling is also circular, that is, the tooling is cylindrical. When the openings at both ends of the graphite sintering stage are rectangular, the cross-sectional shape of the tooling is also rectangular, that is, the tooling is cuboid.
[0024] A Joule thermal shock method based on the above-mentioned automated Joule thermal shock device includes the following steps:
[0025] (1) The first robotic arm picks up a number of required first raw material storage containers and places them on the first pallet, and then the first robotic arm picks up and transfers the first pallet;
[0026] (2) The second robotic arm picks up and places the first tray, then opens several first raw material storage containers, takes out raw materials from several first raw material storage containers and places them in an electronic scale for weighing, so as to obtain the required amount and store them in the second raw material storage container; then the second raw material storage container is transferred.
[0027] (3) The third robotic arm grips the second raw material storage container and shakes it to fully mix the raw materials inside; then the second raw material storage container is transferred.
[0028] (4) The fourth robotic arm grips and opens the second raw material storage container and fills the raw material into the graphite sintering table; then the graphite sintering table is transferred.
[0029] (5) The fifth robot grips the graphite sintering table and places it on the bracket at one end of the conveyor belt. The bracket is driven by the conveyor belt to the positive and negative terminals of the power supply. The positive and negative terminals of the power supply are connected to the two ends of the graphite sintering table respectively. Then, current is applied to perform Joule thermal shock. Then, the graphite sintering table that has completed Joule thermal shock is driven by the conveyor belt to the other end of the conveyor belt.
[0030] (6) The sixth robotic arm clamps the graphite sintering table from the bracket and unloads the material;
[0031] (7) The seventh robotic arm holds the tooling and extends from one end of the graphite sintering table to push out the other end of the finished graphite sintering table.
[0032] The beneficial effects of this utility model are as follows:
[0033] (1) The automated mass production of materials is achieved by combining robotic arms, graphite sintering tables, conveyor belts and power heating.
[0034] (2) By designing the cross-sectional area of the middle part of the graphite sintering stage perpendicular to the length of the strip to be smaller than the cross-sectional area of the end of the graphite sintering stage perpendicular to the length of the strip, the resistance is greater, thus ensuring that the middle temperature rises faster and the middle heat generation is higher during the Joule heating process. This ensures that the temperature of the sample heating is high enough while the temperature of the graphite sintering stage on both sides of the electrode is low, so that the electrode will not burn out. Attached Figure Description
[0035] Figure 1 This is a schematic diagram of the overall structure of the first to sixth stations of the Joule thermal shock automation device of this utility model.
[0036] Figure 2 This is a schematic diagram of the structure of the first station of the device;
[0037] Figure 3 This is a schematic diagram of the structure of the second station of the device;
[0038] Figure 4 This is a schematic diagram of the structure of the third station of the device;
[0039] Figure 5 This is a schematic diagram of the structure of the fourth station of the device;
[0040] Figure 6 This is a schematic diagram of the external structure of the fifth station of the device;
[0041] Figure 7 This is a schematic diagram of the internal structure of the sealed box at the fifth station of the device;
[0042] Figure 8 This is a schematic diagram of the structure of the sixth station of the device;
[0043] Figure 9 This is a schematic diagram of the tooling structure of the seventh station of the device, where a is a cylindrical tooling and b is a rectangular tooling.
[0044] Figure 10 This is a perspective view of the graphite sintering stage of Example 1;
[0045] Figure 11 This is a perspective view of the graphite sintering stage of Example 1;
[0046] Figure 12 This is a perspective view of the graphite sintering stage in Example 2;
[0047] Figure 13 This is a perspective view of the graphite sintering stage of Example 2;
[0048] Figure 14 A perspective view of the graphite sintering stage in Example 3;
[0049] Figure 15 A cross-sectional view of the graphite sintering stage in Example 3;
[0050] The middle section is 1, the end section is 2, the first station is A, the second station is B, the third station is C, the fourth station is D, the fifth station is E, and the sixth station is F. Detailed Implementation
[0051] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0052] The embodiments of this application employ the following apparatus:
[0053] like Figure 1 — Figure 9 An automated Joule thermal shock device includes a first station A, a second station B, a third station C, a fourth station D, a fifth station E, a sixth station F, and a seventh station arranged in sequence.
[0054] The first workstation A includes at least several sealed first raw material storage containers, a first tray for placing the first raw material storage containers, and a first robotic arm for gripping and transferring the first raw material storage containers and the first tray, wherein the raw materials are stored in the first raw material storage containers.
[0055] The second workstation B includes at least a second robotic arm for opening different first raw material storage containers, for sampling and transferring materials as needed, an electronic scale for weighing raw materials, and a second raw material storage container for storing the weighed raw materials.
[0056] The third workstation C includes at least a third robotic arm for mixing and transferring the raw materials in the second raw material storage container;
[0057] The fourth station D includes at least a fourth robotic arm for opening the second raw material storage container and loading the raw material in the second raw material storage container into the graphite sintering table; the main body of the graphite sintering table is a hollow strip with openings at both ends, and the cross-sectional area of the middle part of the graphite sintering table perpendicular to the length of the strip is smaller than the cross-sectional area of the end part of the graphite sintering table perpendicular to the length of the strip.
[0058] The fifth station E includes at least a fifth robotic arm for picking up and placing graphite sintering tables and a sealed box; the sealed box contains a conveyor belt and a power supply, and the surface of the conveyor belt is provided with several brackets for supporting the graphite sintering tables, the brackets having recesses adapted to the shape of the graphite sintering tables; the sealed box is protected by a vacuum or inert gas; the positive and negative terminals of the power supply are used to connect to the two ends of the graphite sintering table respectively, and the thermometer is used to measure the temperature of the middle part of the graphite sintering table after it has been heated by the power supply;
[0059] The sixth station F includes at least a sixth robotic arm for picking up and placing graphite sintering tables;
[0060] The seventh station includes at least a seventh robotic arm for removing finished products from the graphite sintering table, and the seventh robotic arm holds a tooling for extending from one end of the graphite sintering table to push the finished product out from the other end of the graphite sintering table.
[0061] The embodiments of this utility model will be further described below with reference to several examples.
[0062] Example 1
[0063] like Figure 1 — Figure 11 A Joule thermal shock method based on the above-mentioned automated Joule thermal shock device includes the following steps:
[0064] (1) The first robotic arm picks up the three required first raw material storage containers (containing petroleum coke, Na2CO3 and NaCl respectively) and places them on the first tray. Then the first robotic arm picks up and transfers the first tray.
[0065] (2) The second robotic arm picks up and places the first tray, then opens the three first raw material storage containers in sequence, takes the raw materials from the three first raw material storage containers and places them in the electronic scale for weighing, wherein 0.3g of petroleum coke, 0.3g of Na2CO3 and 0.3g of NaCl are weighed. After obtaining the required amount, they are stored in the second raw material storage container; then the second raw material storage container is transferred.
[0066] (3) The third robotic arm grips the second raw material storage container and shakes it to fully mix the raw materials inside; then the second raw material storage container is transferred.
[0067] (4) The fourth robotic arm grips and opens the second raw material storage container and fills the raw material into the graphite sintering table; then the graphite sintering table is transferred.
[0068] In this step, the openings at both ends of the graphite sintering table are sealed with graphite sealing plugs by the fourth robotic arm, and there are three fourth robotic arms.
[0069] The graphite sintering platform is cylindrical, and its hollow shape is a spindle shape, which is larger in the middle and smaller at both ends.
[0070] (5) The fifth robotic arm grips the graphite sintering table and places it on the bracket at one end of the conveyor belt. The box door is closed, a vacuum is drawn, and the bracket is driven by the conveyor belt to the positive and negative terminals of the power supply. The positive and negative terminals of the power supply are connected to the two ends of the graphite sintering table, respectively. The thermometer is aimed at the middle of the graphite sintering table to continuously measure the temperature. Then, current is applied to make the middle of the sintering table heat up to 3000K at a rate of 20000 degrees Celsius per second and the power is immediately cut off to perform Joule thermal shock. Then, the graphite sintering table that has completed Joule thermal shock is driven by the conveyor belt to the other end of the conveyor belt.
[0071] (6) The sixth robotic arm clamps the graphite sintering table from the bracket and unloads the material;
[0072] (7) The seventh robotic arm grips the fixture, extends from one end of the graphite sintering table, and pushes out the other end of the finished graphite sintering table. The cross-sectional shape of the fixture is adapted to the shape of the openings at both ends of the graphite sintering table. In this embodiment, for example... Figure 9 In the figure 'a', the shape of the openings at both ends of the graphite sintering platform is circular, and the cross-sectional shape of the tooling is also circular, that is, the tooling is cylindrical.
[0073] In this embodiment, firstly, Joule thermal shock at an ultra-high temperature of up to 3000 K is used to promote the graphitization process from a thermodynamic perspective. Secondly, because the openings at both ends of the graphite sintering stage are sealed, the gas inside expands at high temperature, generating a certain pressure that disrupts the π-π interactions of aromatic rings in carbon molecules, resulting in a mixed-structure carbon composed of crystalline and amorphous carbon. The optimized carbon material (DSC-200–0.3) exhibits a capacity of 208.61 mAh / g at a high rate of 10C, a significant improvement compared to the original graphite's 15 mAh / g. After 3000 charge-discharge cycles, the material still retains 81.06% of its capacity. Dynamic process analysis shows that this superior rate performance is attributed to the larger interlayer spacing, which is beneficial for ion transport; the disordered amorphous carbon provides additional lithium storage sites, while the crystalline carbon enhances charge transfer. The dual-impact chemistry method provides a cost-effective and efficient way to rapidly produce hybrid carbon anodes, enabling lithium-ion batteries to have a 10C fast-charging capability and opening up a new direction for the development of high-performance energy storage systems.
[0074] The existing equipment can only process 0.5g of sample per test bench at a time, but after batch production, it can process kilogram-level samples at a time, greatly improving experimental and production efficiency.
[0075] Example 2
[0076] This embodiment uses Pt / CNWC as the raw material, and its synthesis steps are as follows: 200 mg CNW and 4 mL H2PtCl6 (20 mmol / L) are added. −1 Add the solution to 20 mL of PVP solution (20 mmol / L). −1 Add the NaBH4 solution and stir at room temperature for 10 minutes to ensure even dispersion. Then add the pre-prepared NaBH4 solution (10 mmol / L). -1 Add the 1,000 ppm to the well-dispersed suspension and stir for 5 minutes. Next, collect the Pt / CNW sample by centrifugation at 10,000 rpm, wash with deionized water, and then dry at 60°C.
[0077] Deionized water was supplied by an ultrapure water system (Milli-Q). Cellulose nanocrystals (CNW, 5wt%) were purchased from North Century (Jiangsu) Cellulose Materials Co., Ltd. H2PtCl6, NaBH4, and polyvinylpyrrolidone (PVP) were purchased from Sigma-Aldrich. All chemical reagents were used directly without further treatment.
[0078] like Figure 1 — Figure 9 and Figure 12 — Figure 13A Joule thermal shock method based on the above-mentioned automated Joule thermal shock device includes the following steps:
[0079] (1) The first robotic arm picks up a first raw material storage container (containing Pt / CNW) and places it on the first pallet, and then the first robotic arm picks up and transfers the first pallet;
[0080] (2) The second robotic arm picks up and places the first tray, then opens the first raw material storage container, takes the raw material from the first raw material storage container and places it in the electronic scale to weigh 0.5g Pt / CNW, so as to obtain the required amount and store it in the second raw material storage container; then the second raw material storage container is transferred.
[0081] (3) The third robotic arm grips the second raw material storage container and shakes it to fully mix the raw materials inside; then the second raw material storage container is transferred.
[0082] (4) The fourth robotic arm grips and opens the second raw material storage container and fills the raw material into the graphite sintering table; then the graphite sintering table is transferred.
[0083] The hollow shape of the graphite sintering platform is cylindrical, and the outer surfaces at both ends of the graphite sintering platform have raised annular steps.
[0084] (5) The fifth robotic arm grips the graphite sintering table and places it on the bracket at one end of the conveyor belt. The box door is closed, a vacuum is drawn, and the bracket is driven by the conveyor belt to the positive and negative terminals of the power supply. The positive and negative terminals of the power supply are connected to the two ends of the graphite sintering table respectively. The thermometer is aimed at the middle of the graphite sintering table to continuously measure the temperature. Then, current is applied to make the middle of the sintering table heat up to 700 degrees Celsius at a rate of 20,000 degrees Celsius per second and hold it for 1 second, thereby performing Joule thermal shock. Then, it is driven by the conveyor belt to the other end of the conveyor belt.
[0085] (6) The sixth robotic arm clamps the graphite sintering table from the bracket and unloads the material.
[0086] (7) The seventh robotic arm grips the fixture, extends from one end of the graphite sintering table, and pushes out the other end of the finished graphite sintering table. The cross-sectional shape of the fixture is adapted to the shape of the openings at both ends of the graphite sintering table. In this embodiment, for example... Figure 9 In the figure 'a', the shape of the openings at both ends of the graphite sintering platform is circular, and the cross-sectional shape of the tooling is also circular, that is, the tooling is cylindrical.
[0087] The above method yielded metal-anchored functional groups (such as -OH and -COOH) in CNWs, and the ultrafast heating and strong quenching characteristics of the HTS method synergistically promoted the successful synthesis of metal nanoparticles. The prepared Pt nanocatalyst (η 10 mA cm⁻¹) -2= 51.8 mV) shows a higher efficiency than Pt catalysts prepared in tube furnaces (η10 mA cm^2). -2 = 169.4 mV) Superior catalytic hydrogen evolution reaction (HER) performance. This rapid and versatile method paves the way for the nanofabrication of high-quality metal nanoparticles, thereby expanding the applications of energy conversion and electrocatalysis.
[0088] The existing equipment can only process 0.5g of sample per test bench at a time, but after batch production, it can process kilogram-level samples at a time, greatly improving experimental and production efficiency.
[0089] Example 3
[0090] In this embodiment, coconut shells are ground into fine granular coconut shell powder using a mortar and pestle as raw material.
[0091] like Figure 1 — Figure 9 and Figure 14 — Figure 15 A Joule thermal shock method based on the above-mentioned automated Joule thermal shock device includes the following steps:
[0092] (1) The first robotic arm picks up the required first raw material storage container (containing coconut shell powder) and places it on the first tray, and then the first robotic arm picks up and transfers the first tray;
[0093] (2) The second robotic arm picks up and places the first tray, then opens the first raw material storage container, takes the raw material from the first raw material storage container and places it in the electronic scale to weigh 1g of coconut shell powder, so as to obtain the required amount and store it in the second raw material storage container; then the second raw material storage container is transferred.
[0094] (3) The third robotic arm grips the second raw material storage container and shakes it to fully mix the raw materials inside; then the second raw material storage container is transferred.
[0095] (4) The fourth robotic arm grips and opens the second raw material storage container and fills the raw material into the graphite sintering table; then the graphite sintering table is transferred.
[0096] The graphite sintering platform is rectangular, and its hollow shape is a stepped shape that is larger in the middle and smaller at both ends.
[0097] (5) The fifth robotic arm grips the graphite sintering table and places it on the bracket at one end of the conveyor belt. After closing the vacuum chamber door and evacuating the vacuum, the bracket is driven by the conveyor belt to the positive and negative terminals of the power supply. The positive and negative terminals of the power supply are connected to the two ends of the graphite sintering table respectively. Then, current is applied to heat the middle part of the sintering to 550 degrees Celsius at a rate of 20,000 degrees Celsius per second and hold it for 10 seconds to perform Joule thermal shock. Then, it is driven by the conveyor belt to the other end of the conveyor belt.
[0098] (6) The sixth robotic arm clamps the graphite sintering table from the bracket and unloads the material.
[0099] (7) The seventh robotic arm grips the fixture, extends from one end of the graphite sintering table, and pushes out the other end of the finished graphite sintering table. The cross-sectional shape of the fixture is adapted to the shape of the openings at both ends of the graphite sintering table, such as... Figure 9 In embodiment b, the openings at both ends of the graphite sintering platform are rectangular, and the cross-sectional shape of the tooling is also rectangular, i.e., the tooling is cuboid.
[0100] After the above steps, coconut shell pre-carbonized powder is obtained.
[0101] Then, KOH powder and coconut shell pre-carbonization are used as raw materials for further preparation. The specific process is as follows:
[0102] (1) The first robotic arm picks up the two required first raw material storage containers (containing KOH powder and coconut shell pre-carbon respectively) and places them on the first tray. Then the first robotic arm picks up and transfers the first tray.
[0103] (2) The second robotic arm picks up and places the first tray, then opens several first raw material storage containers, takes out raw materials from several first raw material storage containers and places them in an electronic scale for weighing. 0.6g of KOH powder and 0.2g of coconut shell pre-carbonized powder are weighed to obtain the required amount and store them in the second raw material storage container; then the second raw material storage container is transferred.
[0104] (3) The third robotic arm grips the second raw material storage container and shakes it to fully mix the raw materials inside; then the second raw material storage container is transferred.
[0105] (4) The fourth robotic arm grips and opens the second raw material storage container and fills the raw material into the graphite sintering table; then the graphite sintering table is transferred.
[0106] The graphite sintering platform is rectangular, and its hollow shape is a stepped shape that is larger in the middle and smaller at both ends.
[0107] (5) The fifth robotic arm grips the graphite sintering table and places it on the bracket at one end of the conveyor belt. The vacuum chamber door is closed, and after evacuation, argon gas is introduced. The gas is repeatedly washed three times. The bracket is driven by the conveyor belt to the positive and negative terminals of the power supply. The positive and negative terminals of the power supply are connected to the two ends of the graphite sintering table respectively. Then, current is applied to heat the middle part of the sintering to 1200K at a rate of 1100 degrees Celsius per second and hold it for 10 seconds to perform Joule thermal shock. Then, it is driven by the conveyor belt to the other end of the conveyor belt.
[0108] (6) The sixth robotic arm clamps the graphite sintering table from the bracket and unloads the material.
[0109] (7) The seventh robotic arm grips the fixture, extends from one end of the graphite sintering table, and pushes out the other end of the finished graphite sintering table. The cross-sectional shape of the fixture is adapted to the shape of the openings at both ends of the graphite sintering table, such as... Figure 9 In embodiment b, the openings at both ends of the graphite sintering platform are rectangular, and the cross-sectional shape of the tooling is also rectangular, i.e., the tooling is cuboid.
[0110] In this embodiment, Joule thermal shock carbonization and HTS-KOH activation methods were employed to synthesize active porous carbon (APCs) with a high specific surface area of approximately 843 m² g⁻¹. Compared to the traditional heat treatment and KOH activation process, which takes up to 2 hours, this method significantly improves the preparation efficiency and product performance of APCs. In the HTS process, the sample underwent instantaneous Joule heating (heating rate of approximately 1100 K / s). Under high temperature and rapid quenching conditions, KOH rapidly melted into small droplets, promoting a full reaction with the carbon material and forming a uniformly distributed abundance of micropores. These micropores are controllable, dense, and small. The prepared HTS-APC-based supercapacitor exhibited an energy density as high as 25 Wh kg⁻¹ and a power density of 582 W kg⁻¹ in EMIMBF4 ionic liquid. This study suggests that the proposed technology not only provides a new approach to supercapacitor manufacturing but also significantly improves its energy density, opening up new possibilities for the development of energy storage materials.
[0111] The existing equipment can only process 0.5g of sample per test bench at a time, but after batch production, it can process kilogram-level samples at a time, greatly improving experimental and production efficiency.
[0112] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.
Claims
1. A joule heating shock automated apparatus, characterized by, The first station, the second station, the third station, the fourth station, the fifth station, the sixth station and the seventh station are arranged in sequence; The first station comprises at least a plurality of sealed first raw material storage containers, a first tray for placing the first raw material storage containers, and a first mechanical arm for clamping and transferring the first raw material storage containers and the first tray, and the raw materials are stored in the first raw material storage containers; The second station comprises at least a second mechanical arm for opening different first raw material storage containers, sampling on demand and transferring, an electronic scale for weighing raw materials, and a second raw material storage container for storing the weighed raw materials; The third station comprises at least a third mechanical arm for mixing the raw materials in the second raw material storage container and transferring; The fourth station comprises at least a fourth mechanical arm for opening the second raw material storage container and loading the raw materials in the second raw material storage container into a graphite sintering platform; the main body of the graphite sintering platform is a hollow strip-shaped structure with open ends, and the cross-sectional area of the middle part of the graphite sintering platform perpendicular to the length direction of the strip-shaped structure is smaller than the cross-sectional area of the end part of the graphite sintering platform perpendicular to the length direction of the strip-shaped structure; The fifth station comprises at least a fifth mechanical arm for taking and placing the graphite sintering platform, and a sealed box; the sealed box has a conveyor belt, a temperature measuring instrument and a power supply inside; the surface of the conveyor belt is provided with a plurality of brackets for supporting the graphite sintering platform, and the brackets have recesses matched with the shape of the graphite sintering platform; the sealed box is protected by vacuum or inert gas; the positive and negative electrodes of the power supply are used to be connected to the two ends of the graphite sintering platform respectively, and the temperature measuring instrument is used to measure the temperature of the middle part of the graphite sintering platform after being heated by the power supply; The sixth station comprises at least a sixth mechanical arm for taking and placing the graphite sintering platform; The seventh station comprises at least a seventh mechanical arm for taking out the finished product from the graphite sintering platform, and the seventh mechanical arm clamps a tooling for protruding the finished product graphite sintering platform from one end of the graphite sintering platform.
2. The automated device for joule heating impact according to claim 1, wherein, The graphite sintering platform is cylindrical or cuboid.
3. The automated device for joule heating impact according to claim 1, wherein, The hollow shape of the graphite sintering platform is a spindle shape with large middle part and small ends.
4. The automated device for joule heating impact according to claim 1, wherein, The hollow shape of the graphite sintering platform is a ladder shape with large middle part and small ends.
5. The automated device for joule heating impact according to claim 1, wherein, The hollow shape of the graphite sintering platform is a cylindrical shape, and the outer surface of the two ends of the graphite sintering platform has a convex annular step.
6. The automated joule heating impact apparatus of claim 1, wherein, The cross-sectional shape of the tooling is matched with the shape of the opening of the two ends of the graphite sintering platform.