Battery pole piece drying method and system based on frequency conversion microwaves

Abstract

The invention belongs to the technical field of battery manufacturing, and discloses a battery pole piece drying method and system based on variable frequency microwaves, and the method comprises the following steps: placing a battery pole piece to be dried in a pretreatment chamber, and adjusting the initial temperature of the battery pole piece; transmitting a microwave signal in a first preset frequency range by using a variable-frequency microwave generator; in the drying process, hot air within a second preset temperature range is sprayed to the surface of the battery pole piece, the flow speed of the hot air is within a preset flow speed range, the surface humidity of the battery pole piece is monitored in real time, and the frequency of microwave radiation and the temperature of airflow are automatically adjusted; after drying is completed, the battery pole piece is transferred into a cooling chamber, and the temperature of the battery pole piece is rapidly reduced to the room temperature through cooling airflow. According to the embodiment of the invention, the superiority of the microwave technology can be fully utilized, and the drying process is monitored in real time by dynamically adjusting the frequency and the airflow temperature, so that the battery pole piece is ensured to achieve the optimal drying effect under the uniform and rapid conditions.

Description

Technical Field

[0001] The present invention belongs to the field of drying technology, and in particular to a method and system for drying battery pole pieces based on variable frequency microwaves. Background Art

[0002] With the rapid development of electric vehicles and energy storage technologies, demands for battery performance are increasing. As a core component of batteries, the drying process of battery pole pieces is crucial to their electrochemical performance and service life. During the drying process, the pole pieces must remove solvents from the coating material to ensure high energy density and stability. However, traditional drying methods have many shortcomings, limiting battery manufacturing efficiency and product quality.

[0003] First, traditional drying methods often use hot air or infrared drying, which typically rely on convection and radiant heating. Due to low heat transfer efficiency, long drying times, and temperature unevenness, these methods can easily damage battery electrodes, reduce performance, and even cause safety issues. Furthermore, traditional methods make it difficult to monitor and adjust temperature and humidity during the drying process in real time, resulting in unstable drying results and, in turn, affecting the overall performance of the battery. Summary of the Invention

[0004] The purpose of the present invention is to provide a battery pole piece drying method and system based on variable frequency microwaves to address the deficiencies in the prior art. The method can fully utilize the advantages of microwave technology, dynamically adjust the frequency and air flow temperature, and monitor the drying process in real time to ensure that the battery pole pieces achieve the best drying effect under uniform and rapid conditions.

[0005] One embodiment of the present application provides a method for drying a battery electrode based on variable frequency microwaves, the method comprising: Place the battery electrode to be dried in a pretreatment chamber and adjust the initial temperature of the battery electrode; emitting a microwave signal within a first preset frequency range using a variable frequency microwave generator, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process; During the drying process, hot air within a second preset temperature range is sprayed onto the surface of the battery electrode, with a flow rate within the preset flow rate range. The surface humidity of the battery electrode is monitored in real time, and the frequency of the microwave radiation and the temperature of the airflow are automatically adjusted. After drying is completed, the battery electrodes are transferred to a cooling chamber and the temperature of the battery electrodes is quickly reduced to room temperature using cooling airflow.

[0006] Optionally, placing the battery electrode sheets to be dried in a pretreatment chamber and adjusting the initial temperature of the battery electrode sheets includes: The battery electrodes to be dried are placed in layers in the pretreatment chamber. Multi-band temperature control technology is used to apply different temperatures to each layer to achieve a temperature gradient in the battery electrodes, promote uniform distribution of moisture and subsequent drying effect. The first layer is 30°C, the second layer is 35°C, and the third layer is 40°C.

[0007] Optionally, the method of using a variable frequency microwave generator to emit a microwave signal within a first preset frequency range, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process, comprises: A variable frequency microwave generator is used to emit a microwave signal with a first preset frequency range of 300MHz to 3GHz. The frequency of the microwave signal is modulated with a second preset frequency range of 0.1Hz to 10Hz during the drying process. Combined with phase modulation technology, the microwave acts on the battery electrode with different phases and frequencies in different time periods, forming a complex drying field to achieve deep evaporation of moisture inside the battery electrode.

[0008] Optionally, during the drying process, hot air within a second preset temperature range is sprayed onto the surface of the battery electrode, and the flow rate of the hot air is within the preset flow rate range, including: During the drying process, hot air with a second preset temperature range of 40°C to 60°C is sprayed onto the surface of the battery electrode. The preset flow rate range of the hot air is 1m / s to 5m / s, and the temperature and humidity of the battery electrode surface are monitored in real time to ensure that the airflow forms vortices on the surface of the battery electrode to enhance the heat exchange efficiency.

[0009] Optionally, after the drying is completed, the battery electrode pieces are transferred to a cooling chamber, and the temperature of the battery electrode pieces is quickly reduced to room temperature by using a cooling air flow, including: After drying, the battery pole pieces are transferred to the cooling chamber, where segmented cooling technology is used to quickly reduce the surface temperature of the battery pole pieces to 60°C using efficient cooling airflow. The surface temperature of the battery electrode is gradually lowered to room temperature, wherein the temperature and flow rate of the cooling air flow are dynamically adjusted according to the real-time temperature changes of the battery electrode to prevent material deformation or performance degradation caused by sudden temperature drops.

[0010] Another embodiment of the present application provides a battery pole piece drying system based on variable frequency microwaves, the system comprising: A regulating module is used to place the battery electrode to be dried in a pretreatment chamber and regulate the initial temperature of the battery electrode; a transmitting module, configured to transmit a microwave signal within a first preset frequency range using a variable frequency microwave generator, wherein the frequency of the microwave signal is modulated with a frequency within a second preset frequency range during the drying process; The spray module is used to spray hot air in a second preset temperature range onto the surface of the battery electrode during the drying process. The flow rate of the hot air is within the preset flow rate range, and the surface humidity of the battery electrode is monitored in real time to automatically adjust the frequency of the microwave radiation and the temperature of the airflow; The cooling module is used to transfer the battery pole pieces to the cooling chamber after drying is completed, and use the cooling air flow to quickly reduce the temperature of the battery pole pieces to room temperature.

[0011] Yet another embodiment of the present application provides a storage medium, wherein the storage medium stores a computer program, wherein the computer program is configured to execute any of the above methods when run.

[0012] Yet another embodiment of the present application provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute any of the above methods.

[0013] Compared with the prior art, the present invention provides a battery electrode drying method based on variable frequency microwaves, which places the battery electrode to be dried in a pretreatment chamber and adjusts the initial temperature of the battery electrode; uses a variable frequency microwave generator to emit a microwave signal in a first preset frequency range, wherein the frequency of the microwave signal is modulated at a frequency in a second preset frequency range during the drying process; during the drying process, hot air in a second preset temperature range is sprayed onto the surface of the battery electrode, the flow rate of the hot air is in the preset flow rate range, and the surface humidity of the battery electrode is monitored in real time, and the frequency of the microwave radiation and the temperature of the airflow are automatically adjusted; after the drying is completed, the battery electrode is transferred to a cooling chamber, and the cooling airflow is used to quickly reduce the temperature of the battery electrode to room temperature, thereby making full use of the advantages of microwave technology, dynamically adjusting the frequency and airflow temperature, and monitoring the drying process in real time to ensure that the battery electrode achieves the best drying effect under uniform and rapid conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A hardware structure block diagram of a computer terminal for a method for drying battery electrodes based on variable frequency microwaves provided in an embodiment of the present invention; Figure 2 A schematic flow chart of a method for drying a battery electrode based on variable frequency microwaves provided in an embodiment of the present invention; Figure 3 A schematic structural diagram of a battery pole piece drying system based on variable frequency microwaves provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0015] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention.

[0016] The embodiment of the present invention first provides a method for drying battery pole pieces based on variable frequency microwaves. The method can be applied to electronic devices such as computer terminals, specifically ordinary computers.

[0017] The following describes it in detail by taking running on a computer terminal as an example. Figure 1 The hardware structure block diagram of a computer terminal for a method of drying a battery electrode based on variable frequency microwaves provided by an embodiment of the present invention. Figure 1 As shown, the computer device includes a processor, a memory, and a network interface connected via a system bus, wherein the memory may include a non-volatile storage medium and an internal memory.

[0018] The non-volatile storage medium can store an operating system and a computer program. The computer program includes program instructions, which, when executed, can cause the processor to execute any one of the variable frequency microwave-based battery electrode drying methods.

[0019] The processor is used to provide computing and control capabilities and support the operation of the entire computer equipment.

[0020] The internal memory provides an environment for the operation of the computer program in the non-volatile storage medium. When the computer program is executed by the processor, the processor can execute any battery electrode drying method based on variable frequency microwaves.

[0021] The network interface is used for network communication, such as sending assigned tasks, etc. Those skilled in the art will understand that Figure 1 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0022] It should be understood that the processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA), other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0023] See also Figure 2 The embodiment of the present invention provides a method for drying a battery electrode based on variable frequency microwaves, which may include the following steps: S201, placing the battery electrode to be dried in a pretreatment chamber and adjusting the initial temperature of the battery electrode; During this step, the placement of the battery electrodes to be dried in the pretreatment chamber is crucial. By placing the battery electrodes in a specific temperature-controlled environment, their initial temperature can be effectively regulated. Operators then select an appropriate pretreatment temperature based on the electrode material properties and humidity conditions. Multi-point temperature control equipment is typically used to precisely control the chamber temperature in preparation for the subsequent drying process. This temperature control technology prevents uneven moisture distribution on the battery electrodes prior to drying, which can be caused by varying ambient temperatures, thereby ensuring efficient and uniform drying.

[0024] This step helps create optimal pretreatment conditions for drying the battery electrodes. By adjusting the initial temperature, moisture within the battery electrodes is effectively distributed evenly, improving the efficiency and uniformity of the subsequent drying phase. Uneven temperatures before the electrodes enter the drying process can lead to incomplete drying or localized overheating, impacting the overall performance and service life of the electrodes. Therefore, the initial temperature regulation provided by the pretreatment chamber is not only an important prerequisite for achieving effective drying but also fundamental to ensuring final product quality.

[0025] Specifically, the battery electrodes to be dried can be placed in layers in a pretreatment chamber, and multi-band temperature control technology can be used to apply different temperatures to each layer to achieve a temperature gradient in the battery electrodes, promote uniform distribution of moisture and subsequent drying effect, where the first layer is 30°C, the second layer is 35°C, and the third layer is 40°C.

[0026] This step, by adopting layered temperature control technology, can significantly improve the drying efficiency and uniformity of the battery electrodes, ensuring that each layer of battery electrodes can be efficiently dried within the appropriate temperature range. By setting different temperature layers, the uniform distribution of moisture is promoted, which helps to reduce the migration and accumulation of moisture during the drying process, thereby reducing the risk of uneven drying quality of the battery electrodes. Without this critical initial adjustment step, the battery electrodes may experience significant temperature and humidity differences during the drying process, ultimately leading to a decline in the quality of the finished product and affecting the overall performance and life of the battery. Therefore, this step lays a solid foundation for the subsequent drying of the battery electrodes.

[0027] When implementing this step, it is first necessary to scientifically and rationally design the layering scheme for the battery electrodes. By placing the battery electrodes in layers in the pretreatment chamber, different temperatures can be set for the battery electrodes in different layers. In this process, multi-band temperature control technology is applied to ensure that the temperature setting of each layer is reasonable and precise. For example, the first layer is set to 30°C, the second layer to 35°C, and the third layer to 40°C. The advantage of such layered management is that the battery electrodes in the lower layers are likely to be less affected by the temperature because they are closer to the bottom, and the gradually increasing temperature setting helps to quickly and evenly increase their humidity and promote water evaporation.

[0028] To effectively monitor the temperature of each layer, a well-placed temperature sensor layout is crucial. Each layer can be equipped with a corresponding temperature sensor and connected to a central control system to provide real-time temperature data. These sensors help operators detect temperature fluctuations promptly. If a layer deviates from the desired temperature, the system can immediately adjust the heating intensity in that layer to ensure uniform drying across the entire battery cell.

[0029] Furthermore, the layered arrangement of battery electrodes facilitates convection, promoting air flow and heat exchange. The temperature differences between each layer promote air circulation, thereby increasing the efficiency of heat transfer and allowing moisture to be released more quickly from the battery electrode. This temperature gradient not only accelerates the drying process but also prevents material damage due to overheating, further ensuring the overall performance of the battery electrode.

[0030] S202, using a variable frequency microwave generator to emit a microwave signal within a first preset frequency range, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process; In this step, the variable-frequency microwave generator's primary function is to emit microwave signals within a specific frequency range, acting as seed signals on the battery electrodes to be dried. The frequencies of these microwave signals are set within the 300MHz to 3GHz range, encompassing a wide range of frequencies suitable for deep moisture evaporation. This design fully considers the characteristics and moisture content of the battery electrode materials, using microwaves to excite internal water molecules, causing them to vibrate rapidly, thereby increasing the evaporation rate. In actual operation, the microwave generator can achieve real-time adjustment of the drying effect by modulating the frequency, allowing the microwave radiation to adapt to changes in the battery electrode moisture content, ensuring the flexibility and effectiveness of the drying process.

[0031] By emitting microwave signals with a frequency range of 300MHz to 3GHz and modulating them during the drying process, the evaporation efficiency of water within the battery pole piece can be significantly improved, ensuring the uniformity and depth of the drying process. This frequency modulation helps generate different electromagnetic fields, forming a complex drying field within the battery pole piece, which effectively penetrates and excites the internal water molecules. This method has significant advantages over traditional drying methods, reducing drying time and preventing quality issues caused by uneven moisture content, thereby improving battery pole piece production efficiency and product quality, ultimately laying the foundation for improved battery performance.

[0032] Specifically, a variable frequency microwave generator can be used to emit a microwave signal with a first preset frequency range of 300MHz to 3GHz. The frequency of the microwave signal is modulated with a second preset frequency range of 0.1Hz to 10Hz during the drying process. Combined with phase modulation technology, the microwaves act on the battery pole pieces with different phases and frequencies in different time periods, forming a complex drying field to achieve deep evaporation of moisture inside the battery pole pieces.

[0033] This step not only ensures effective deep-layer moisture evaporation within the battery electrodes, but also significantly improves drying efficiency and uniformity. By varying the frequency and phase of the microwave generator during the drying process, it can target each part of the battery electrode, effectively reducing potential heat buildup and excess moisture during the drying process. Compared to traditional technologies, this advanced drying method significantly shortens drying time, improves product quality, and ultimately contributes to enhanced overall battery performance and market competitiveness.

[0034] This step begins with transmitting a microwave signal with a frequency range of 300MHz to 3GHz using a variable-frequency microwave generator. This process involves connecting the transmitter to a control system to ensure precise adjustment of the transmitted frequency and power. The variable-frequency microwave generator offers high flexibility, enabling real-time adjustment of the transmitted frequency to ensure the signal remains within the specified frequency range during the drying process. The core of this process lies in the ability to tailor the microwave signal frequency to the moisture content of the battery electrode, effectively evaporating different levels of moisture.

[0035] Next, the microwave signal is modulated using a second preset frequency range of 0.1Hz to 10Hz. By periodically adjusting the frequency, the water molecules inside the battery electrode can obtain different energies at different time frequencies, which can further accelerate the evaporation of water. During this process, the operator needs to monitor the output status of the microwave generator to ensure that the switching of each frequency is timely and stable. Combined with phase modulation technology, the equipment will control the phase of the microwave signal to form an alternating drying field, thereby improving the penetration and evaporation of water inside the battery electrode.

[0036] Finally, the microwave signal, by applying different phases and frequencies to the battery electrodes, achieves deep-layer moisture evaporation. During this step, the varying phases and frequencies of the microwave signal create a complex drying field, ensuring that moisture is fully released at every level, thus avoiding the uneven drying issues associated with traditional drying methods. Operators can further adjust microwave signal parameters by monitoring the battery electrode temperature and humidity data in real time to ensure efficient and uniform drying.

[0037] S203, during the drying process, spraying hot air within a second preset temperature range onto the surface of the battery electrode, with the flow rate of the hot air being within the preset flow rate range, and monitoring the surface humidity of the battery electrode in real time to automatically adjust the frequency of the microwave radiation and the temperature of the airflow; During the drying process, by spraying hot air within a second preset temperature range onto the surface of the battery electrode, operators can effectively raise the surface temperature of the battery electrode, thereby promoting moisture evaporation. The flow rate of the hot air must be maintained within the preset flow rate range to ensure that the air flow can evenly cover the surface of the battery electrode and avoid local overheating or overcooling. At the same time, real-time monitoring of the surface humidity of the battery electrode is a key step in ensuring the drying effect. The humidity sensor can continuously obtain humidity data on the surface of the battery electrode, and then automatically adjust the frequency of the microwave radiation and the temperature of the airflow. This feedback mechanism enables the microwave drying process to adapt to the dynamically changing drying environment, thereby improving drying efficiency and uniformity.

[0038] Implementing this step effectively improves the efficiency and quality of the drying process. By injecting hot air, the evaporation of moisture from the battery electrode surface is accelerated, preventing moisture from accumulating within the electrode. Real-time humidity monitoring and automatic adjustment of the microwave radiation frequency and airflow temperature ensure that the battery electrode remains in the optimal drying state throughout the drying process. This dynamic adjustment mechanism makes the entire drying process more intelligent, not only improving drying efficiency but also significantly reducing battery performance degradation caused by uneven drying, ultimately laying a solid foundation for efficient battery operation.

[0039] In practice, a nozzle system is first installed within the drying equipment. This system evenly distributes hot air across the surface of the battery plate, ensuring that the hot air covers the entire plate. Depending on the actual temperature and humidity of the battery plate, the operator can pre-set the hot air temperature between 40°C and 60°C, and the flow rate between 1m / s and 5m / s. An efficient fan system is used to inject hot air in real time, while the nozzle angle and air volume are set to ensure that the resulting airflow forms vortices on the surface of the battery plate, improving heat exchange efficiency.

[0040] Secondly, a humidity sensor continuously monitors humidity changes on the battery electrode surface. Based on this sensor feedback, the control system adjusts the operating conditions of both in real time. If the humidity is higher than a preset value, the system automatically increases the frequency of microwave radiation and adjusts the airflow temperature to promote rapid evaporation of moisture. Conversely, if the humidity is lower, the system reduces the microwave intensity and airflow temperature to prevent damage to the battery electrode.

[0041] Finally, the entire system needs to be equipped with a data analysis module that can record humidity and temperature data during each drying process. This not only allows for optimization and adjustment of subsequent drying processes, but also provides data support for battery production, helping production personnel understand the differences in the drying process between different batches of battery electrodes and make targeted improvements to achieve better drying results.

[0042] Specifically, during the drying process, hot air in a second preset temperature range is sprayed onto the surface of the battery electrode, and the flow rate of the hot air is in the preset flow rate range. During the drying process, hot air in a second preset temperature range of 40°C to 60°C can be sprayed onto the surface of the battery electrode, and the preset flow rate range of the hot air is 1m / s to 5m / s. The temperature and humidity of the surface of the battery electrode are monitored in real time to ensure that the airflow forms vortices on the surface of the battery electrode to enhance the heat exchange efficiency.

[0043] During the drying process, the injection of hot air can effectively increase the surface temperature of the battery electrodes and promote the rapid evaporation of water. The temperature of the hot air is set between 40°C and 60°C. This temperature range is moderate and can effectively support the evaporation of water without causing thermal damage to the battery electrodes. In addition, the flow rate of the hot air is required to be between 1m / s and 5m / s. Such a flow rate can ensure that the airflow fully covers the surface of the battery electrodes and improve the drying efficiency. By monitoring the surface temperature and humidity in real time, the system can automatically adjust under changing drying conditions to ensure the continuity and consistency of the drying process.

[0044] This step significantly improves drying efficiency and product quality for battery electrodes. Appropriate hot air injection not only accelerates water evaporation but also regulates material temperature, preventing deformation or performance degradation caused by high temperatures. Furthermore, the combination of real-time monitoring and automatic adjustment mechanisms ensures an intelligent drying process, helping to reduce human error and improve production reliability and consistency.

[0045] To implement this step, a uniformly distributed nozzle system is first installed in the drying equipment to ensure that hot air is sprayed onto the battery electrodes from various angles and directions. Operators can set the hot air temperature range between 40°C and 60°C and the flow rate between 1m / s and 5m / s based on equipment feedback. High-efficiency fans should be selected and the nozzle angles should be set appropriately to ensure that the airflow evenly covers the surface of the battery electrodes and forms vortices on the surface, improving heat exchange efficiency.

[0046] Secondly, the installation of humidity sensors is crucial. The sensors monitor humidity changes on the battery electrode surface. While injecting hot air, the system receives real-time humidity data. If excessive humidity is detected, it automatically adjusts the flow rate and temperature of the injected hot air, or adjusts the microwave frequency of the device accordingly, to ensure rapid evaporation of moisture.

[0047] Finally, to further enhance drying performance, an advanced control system incorporates machine learning algorithms to analyze historical drying process data and dynamically optimize spray parameters and microwave radiation settings. This system can predict changes in drying performance under varying conditions, providing a more intelligent management solution for production and ultimately ensuring the drying quality and consistency of battery electrodes.

[0048] S204, after the drying is completed, the battery pole pieces are transferred to a cooling chamber, and the temperature of the battery pole pieces is quickly reduced to room temperature by using a cooling air flow.

[0049] After drying, the battery electrodes are transferred to a cooling chamber. Using cooling airflow to quickly lower the temperature of the electrodes to room temperature ensures a smooth transition to subsequent processing steps after drying. During the cooling process, the uniform cooling airflow effectively reduces thermal stress caused by large temperature differences, thereby preventing material deformation and performance degradation. Furthermore, rapid cooling can also reduce moisture re-adsorption to a certain extent, ensuring the quality and stability of the battery electrodes.

[0050] This step is crucial to ensuring the structural stability and performance of the battery electrodes. Since the surface temperature of the battery electrodes may be significantly higher than the ambient temperature after high-temperature drying, quickly transferring them to a cooling chamber and utilizing cooling airflow to cool them can effectively reduce material fatigue and avoid deformation and performance degradation caused by sudden temperature drops. This temperature-controlled design not only helps maintain the original physical and chemical properties of the battery electrodes but also facilitates subsequent processing, ultimately safeguarding the overall performance of the battery.

[0051] Specifically, after drying, the battery pole pieces can be transferred to a cooling chamber, and segmented cooling technology can be used to quickly reduce the surface temperature of the battery pole pieces to 60°C using efficient cooling airflow. This step is used to quickly reduce the temperature of the battery pole piece to 60°C after high-temperature drying to prevent damage to the pole piece caused by a sudden drop in temperature. By introducing a cooling airflow, the uniformity and effectiveness of the cooling process can be ensured, thereby avoiding material stress concentration and deformation caused by a rapid drop in local temperature. At the same time, this process lays the foundation for the subsequent gradual cooling process, ensuring the stability of the battery pole piece in subsequent processing. By quickly reducing the temperature of the battery pole piece to 60°C, the material fatigue and deformation caused by temperature differences can be effectively reduced. Rapid cooling not only protects the microstructure of the material, but also provides a good starting point for the subsequent cooling process, ensuring the consistency and reliability of the battery pole piece throughout the production line, and ultimately improving the overall quality and market competitiveness of the product.

[0052] After the drying process is complete, the processed battery electrodes must first be carefully transferred to a pre-set cooling chamber. The cooling chamber design should ensure good airflow and effective temperature management to quickly and evenly cool the battery electrodes. The cooling chamber should be equipped with efficient cooling fans and temperature control devices to ensure that the cooling airflow is evenly distributed across the surface of the battery electrodes. For example, the cooling chamber can use a local airflow control system to ensure that airflow reaches every corner of the battery electrode by adjusting the fan angle and speed.

[0053] Secondly, the temperature of the cooling airflow should be set lower than the current temperature of the battery electrode surface, and it is recommended to be set to a low temperature close to the ambient temperature, such as around 20°C. By spraying the cooling airflow onto the battery electrode surface at a moderate speed, it can quickly remove the heat from the surface and reduce the temperature to 60°C. The wind speed of the fan can be adjusted between 2m / s and 3m / s to ensure that the intensity of the cooling airflow can effectively dissipate heat without causing physical damage to the battery electrode.

[0054] Finally, a temperature sensor monitors the surface temperature of the battery electrodes in real time. Once the temperature drops to 60°C, the system sends a signal, indicating that the cooling process can begin. During this process, the cooling chamber's greenhouse conditioning system continuously maintains a certain temperature and humidity environment to ensure that the battery electrodes do not become over-dried and unstable due to material properties during cooling.

[0055] The surface temperature of the battery electrode is gradually lowered to room temperature, wherein the temperature and flow rate of the cooling air flow are dynamically adjusted according to the real-time temperature changes of the battery electrode to prevent material deformation or performance degradation caused by sudden temperature drops.

[0056] The step of gradually lowering the surface temperature of the battery electrode to room temperature is to ensure that the battery electrode can smoothly transition to normal temperature during the cooling process, avoiding thermal stress and material damage caused by sudden low-temperature shock. By dynamically adjusting the temperature and flow rate of the cooling airflow, the cooling rate can be finely controlled according to the real-time temperature changes of the battery electrode, so that the material remains uniform throughout the cooling process. The implementation of this step helps to achieve a uniform temperature reduction of the battery electrode, thereby ensuring the stability and consistency of the material and reducing the risk of deformation or performance degradation caused by uneven temperature. By precisely controlling the cooling process, the microstructure of the battery electrode is ensured to be undamaged, while providing optimal conditions for subsequent processing and use, greatly enhancing the performance and life of the battery.

[0057] After the battery plate temperature drops to 60°C, the system initiates a gradual cooling process. At this point, the cooling airflow rate and temperature require further dynamic adjustment to ensure a smooth cooling process for the battery plate and avoid thermal stress concentration caused by large temperature differences. Typically, the cooling airflow rate can be gradually reduced to 1m / s to 2m / s, while the airflow temperature is simultaneously lowered, for example, to 18°C ​​to 20°C. This ensures that the surface temperature of the battery plate gradually approaches room temperature, resulting in a gentle cooling process.

[0058] To achieve this dynamic adjustment, the control system should be equipped with high-precision temperature sensors to monitor the surface temperature of the battery electrodes in real time. Upon detecting a gradual drop in temperature to 55°C, the system automatically adjusts the cooling airflow rate and temperature to prevent over-rapid cooling and ensure a uniform temperature drop across all areas. For example, if the temperature in a particular area drops too quickly, the system will increase the airflow temperature in that area while reducing the flow rate to ensure a balanced cooling process.

[0059] Equally important is data recording and analysis during the cooling process. The system records temperature changes during each cooling process, analyzes which parameter settings are most effective, and optimizes subsequent cooling processes. For example, the device can record the temperature changes of different battery electrodes during the cooling process to room temperature, adjust the cooling method accordingly, and develop an optimal cooling plan. This feedback mechanism not only improves cooling efficiency but also ensures the consistency and high quality of the battery electrodes throughout the entire processing process.

[0060] In general, through reasonable segmented cooling technology and intelligent dynamic adjustment mechanism, the surface temperature of the battery electrode can be effectively reduced to room temperature, ultimately improving the production efficiency and quality of the entire battery while protecting the material performance.

[0061] It can be seen that the battery pole pieces to be dried are placed in a pretreatment chamber, and the initial temperature of the battery pole pieces is adjusted; a variable frequency microwave generator is used to emit microwave signals in a first preset frequency range, wherein the frequency of the microwave signal is modulated at a frequency in a second preset frequency range during the drying process; during the drying process, hot air in a second preset temperature range is sprayed onto the surface of the battery pole pieces, and the flow rate of the hot air is in a preset flow rate range. The surface humidity of the battery pole pieces is monitored in real time, and the frequency of the microwave radiation and the temperature of the airflow are automatically adjusted; after the drying is completed, the battery pole pieces are transferred to a cooling chamber, and the cooling airflow is used to quickly reduce the temperature of the battery pole pieces to room temperature, thereby making full use of the advantages of microwave technology, dynamically adjusting the frequency and airflow temperature, and monitoring the drying process in real time to ensure that the battery pole pieces achieve the best drying effect under uniform and rapid conditions.

[0062] Another embodiment of the present invention provides a battery electrode drying system based on variable frequency microwaves, see Figure 3 , the system may include: The adjustment module 301 is used to place the battery electrode sheets to be dried in a pretreatment chamber and adjust the initial temperature of the battery electrode sheets; a transmitting module 302 for transmitting a microwave signal within a first preset frequency range using a variable frequency microwave generator, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process; The spray module 303 is used to spray hot air in a second preset temperature range onto the surface of the battery electrode during the drying process. The flow rate of the hot air is within the preset flow rate range, and the surface humidity of the battery electrode is monitored in real time to automatically adjust the frequency of the microwave radiation and the temperature of the airflow; The cooling module 304 is used to transfer the battery pole pieces to a cooling chamber after drying is completed, and use the cooling airflow to quickly reduce the temperature of the battery pole pieces to room temperature.

[0063] It can be seen that the battery pole pieces to be dried are placed in a pretreatment chamber, and the initial temperature of the battery pole pieces is adjusted; a variable frequency microwave generator is used to emit microwave signals in a first preset frequency range, wherein the frequency of the microwave signal is modulated at a frequency in a second preset frequency range during the drying process; during the drying process, hot air in a second preset temperature range is sprayed onto the surface of the battery pole pieces, and the flow rate of the hot air is in a preset flow rate range. The surface humidity of the battery pole pieces is monitored in real time, and the frequency of the microwave radiation and the temperature of the airflow are automatically adjusted; after the drying is completed, the battery pole pieces are transferred to a cooling chamber, and the cooling airflow is used to quickly reduce the temperature of the battery pole pieces to room temperature, thereby making full use of the advantages of microwave technology, dynamically adjusting the frequency and airflow temperature, and monitoring the drying process in real time to ensure that the battery pole pieces achieve the best drying effect under uniform and rapid conditions.

[0064] An embodiment of the present invention further provides a storage medium storing a computer program, wherein the computer program is configured to execute the steps of any one of the above method embodiments when running.

[0065] Specifically, in this embodiment, the above-mentioned storage medium may be configured to store a computer program for performing the following steps: S201, placing the battery electrode to be dried in a pretreatment chamber and adjusting the initial temperature of the battery electrode; S202, using a variable frequency microwave generator to emit a microwave signal within a first preset frequency range, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process; S203, during the drying process, spraying hot air within a second preset temperature range onto the surface of the battery electrode, with the flow rate of the hot air being within the preset flow rate range, and monitoring the surface humidity of the battery electrode in real time to automatically adjust the frequency of the microwave radiation and the temperature of the airflow; S204, after the drying is completed, the battery pole pieces are transferred to a cooling chamber, and the temperature of the battery pole pieces is quickly reduced to room temperature by using a cooling air flow.

[0066] It can be seen that the battery pole pieces to be dried are placed in a pretreatment chamber, and the initial temperature of the battery pole pieces is adjusted; a variable frequency microwave generator is used to emit microwave signals in a first preset frequency range, wherein the frequency of the microwave signal is modulated at a frequency in a second preset frequency range during the drying process; during the drying process, hot air in a second preset temperature range is sprayed onto the surface of the battery pole pieces, and the flow rate of the hot air is in a preset flow rate range. The surface humidity of the battery pole pieces is monitored in real time, and the frequency of the microwave radiation and the temperature of the airflow are automatically adjusted; after the drying is completed, the battery pole pieces are transferred to a cooling chamber, and the cooling airflow is used to quickly reduce the temperature of the battery pole pieces to room temperature, thereby making full use of the advantages of microwave technology, dynamically adjusting the frequency and airflow temperature, and monitoring the drying process in real time to ensure that the battery pole pieces achieve the best drying effect under uniform and rapid conditions.

[0067] An embodiment of the present invention further provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments.

[0068] Specifically, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0069] Specifically, in this embodiment, the processor may be configured to execute the following steps through a computer program: S201, placing the battery electrode to be dried in a pretreatment chamber and adjusting the initial temperature of the battery electrode; S202, using a variable frequency microwave generator to emit a microwave signal within a first preset frequency range, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process; S203, during the drying process, spraying hot air within a second preset temperature range onto the surface of the battery electrode, with the flow rate of the hot air being within the preset flow rate range, and monitoring the surface humidity of the battery electrode in real time to automatically adjust the frequency of the microwave radiation and the temperature of the airflow; S204, after the drying is completed, the battery pole pieces are transferred to a cooling chamber, and the temperature of the battery pole pieces is quickly reduced to room temperature by using a cooling air flow.

[0070] It can be seen that the battery pole pieces to be dried are placed in a pretreatment chamber, and the initial temperature of the battery pole pieces is adjusted; a variable frequency microwave generator is used to emit microwave signals in a first preset frequency range, wherein the frequency of the microwave signal is modulated at a frequency in a second preset frequency range during the drying process; during the drying process, hot air in a second preset temperature range is sprayed onto the surface of the battery pole pieces, and the flow rate of the hot air is in a preset flow rate range. The surface humidity of the battery pole pieces is monitored in real time, and the frequency of the microwave radiation and the temperature of the airflow are automatically adjusted; after the drying is completed, the battery pole pieces are transferred to a cooling chamber, and the cooling airflow is used to quickly reduce the temperature of the battery pole pieces to room temperature, thereby making full use of the advantages of microwave technology, dynamically adjusting the frequency and airflow temperature, and monitoring the drying process in real time to ensure that the battery pole pieces achieve the best drying effect under uniform and rapid conditions.

[0071] The above describes in detail the structure, features and effects of the present invention based on the embodiments shown in the drawings. The above is only a preferred embodiment of the present invention, but the scope of implementation of the present invention is not limited to what is shown in the drawings. Any changes made in accordance with the concept of the present invention, or modifications to equivalent embodiments with equivalent changes, which do not exceed the spirit covered by the description and drawings, should be within the scope of protection of the present invention.

Claims

1. A method for drying battery pole pieces based on variable frequency microwaves, characterized in that: The method comprises: Place the battery electrode to be dried in a pretreatment chamber and adjust the initial temperature of the battery electrode; emitting a microwave signal within a first preset frequency range using a variable frequency microwave generator, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process; During the drying process, hot air within a second preset temperature range is sprayed onto the surface of the battery electrode, with a flow rate within the preset flow rate range. The surface humidity of the battery electrode is monitored in real time, and the frequency of the microwave radiation and the temperature of the airflow are automatically adjusted. After drying is completed, the battery electrodes are transferred to a cooling chamber and the temperature of the battery electrodes is quickly reduced to room temperature using cooling airflow.

2. The method according to claim 1, characterized in that Placing the battery electrode sheets to be dried in a pretreatment chamber and adjusting the initial temperature of the battery electrode sheets includes: The battery electrodes to be dried are placed in layers in the pretreatment chamber. Multi-band temperature control technology is used to apply different temperatures to each layer to achieve a temperature gradient in the battery electrodes, promote uniform distribution of moisture and subsequent drying effect. The first layer is 30°C, the second layer is 35°C, and the third layer is 40°C.

3. The method according to claim 2, characterized in that The method comprises: using a variable frequency microwave generator to emit a microwave signal within a first preset frequency range, wherein the frequency of the microwave signal is modulated within a second preset frequency range during the drying process, comprising: A variable frequency microwave generator is used to emit a microwave signal with a first preset frequency range of 300MHz to 3GHz. The frequency of the microwave signal is modulated with a second preset frequency range of 0.1Hz to 10Hz during the drying process. Combined with phase modulation technology, the microwave acts on the battery electrode with different phases and frequencies in different time periods, forming a complex drying field to achieve deep evaporation of moisture inside the battery electrode.

4. The method according to claim 3, characterized in that During the drying process, hot air in a second preset temperature range is sprayed onto the surface of the battery electrode, and the flow rate of the hot air is within the preset flow rate range, including: During the drying process, hot air with a second preset temperature range of 40°C to 60°C is sprayed onto the surface of the battery electrode. The preset flow rate range of the hot air is 1m / s to 5m / s, and the temperature and humidity of the battery electrode surface are monitored in real time to ensure that the airflow forms vortices on the surface of the battery electrode to enhance the heat exchange efficiency.

5. The method according to claim 4, characterized in that After the drying is completed, the battery electrode pieces are transferred to a cooling chamber and the temperature of the battery electrode pieces is quickly reduced to room temperature by using a cooling air flow, including: After drying, the battery pole pieces are transferred to the cooling chamber, where segmented cooling technology is used to quickly reduce the surface temperature of the battery pole pieces to 60°C using efficient cooling airflow. The surface temperature of the battery electrode is gradually lowered to room temperature, wherein the temperature and flow rate of the cooling air flow are dynamically adjusted according to the real-time temperature changes of the battery electrode to prevent material deformation or performance degradation caused by sudden temperature drops.

6. A battery pole piece drying system based on variable frequency microwave, characterized in that: The system comprises: A regulating module is used to place the battery electrode to be dried in a pretreatment chamber and regulate the initial temperature of the battery electrode; a transmitting module, configured to transmit a microwave signal within a first preset frequency range using a variable frequency microwave generator, wherein the frequency of the microwave signal is modulated with a frequency within a second preset frequency range during the drying process; The spray module is used to spray hot air in a second preset temperature range onto the surface of the battery electrode during the drying process. The flow rate of the hot air is within the preset flow rate range, and the surface humidity of the battery electrode is monitored in real time to automatically adjust the frequency of the microwave radiation and the temperature of the airflow; The cooling module is used to transfer the battery pole pieces to the cooling chamber after drying is completed, and use the cooling air flow to quickly reduce the temperature of the battery pole pieces to room temperature.

7. The system according to claim 6, characterized in that The adjustment module is specifically used to: The battery electrodes to be dried are placed in layers in the pretreatment chamber. Multi-band temperature control technology is used to apply different temperatures to each layer to achieve a temperature gradient in the battery electrodes, promote uniform distribution of moisture and subsequent drying effect. The first layer is 30°C, the second layer is 35°C, and the third layer is 40°C.

8. The system according to claim 7, characterized in that The transmitting module is specifically used for: A variable frequency microwave generator is used to emit a microwave signal with a first preset frequency range of 300MHz to 3GHz. The frequency of the microwave signal is modulated with a second preset frequency range of 0.1Hz to 10Hz during the drying process. Combined with phase modulation technology, the microwave acts on the battery electrode with different phases and frequencies in different time periods, forming a complex drying field to achieve deep evaporation of moisture inside the battery electrode.

9. A storage medium, characterized in that: The storage medium stores a computer program, wherein the computer program is configured to execute the method according to any one of claims 1 to 5 when executed.

10. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to perform the method according to any one of claims 1 to 5.

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