Automatic vacuum drying system and control method thereof

Abstract

The present invention provides an automated vacuum drying system and a control method thereof. The automated vacuum drying system comprises a material feeding module, a hot oil supply module, an exhaust module, a hot air recovery module, a hot oil recovery module, a multi-degree-of-freedom motion module, a vacuum dryer, a discharge module and a control module. The control module can control the other modules according to feedback from the other modules, thereby solving the problem that the existing drying system for high-nickel ternary positive electrode materials has a poor drying effect and cannot ensure the consistency of the drying effect of the high-nickel ternary positive electrode materials. The automated drying of the high-nickel ternary positive electrode materials is realized, and the consistency of the drying effect of the high-nickel ternary positive electrode materials is effectively ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of automated vacuum drying, and in particular to an automated vacuum drying system and a control method thereof. Background Art

[0002] Lithium batteries offer high energy density, long life, and are lightweight and portable. They are widely used in mobile devices, electric vehicles, drones, solar energy storage, and other fields. With the development of renewable energy and smart grids, lithium batteries will become even more important in the future. Lithium batteries primarily consist of anode materials, cathode materials, separators, electrolytes, and battery casings. The cathode material is the decisive factor in the electrochemical performance of lithium batteries, directly determining their energy density and safety, and thus affecting their overall performance.

[0003] High-nickel ternary positive electrode has become the most promising choice for future lithium battery positive electrode materials due to its high specific capacity. However, since high-nickel ternary positive electrode material is a wet material, it will produce sticking phenomenon. The existing drying system for high-nickel ternary positive electrode material has poor drying effect and cannot guarantee the consistency of the drying effect of high-nickel ternary positive electrode material. Summary of the Invention

[0004] The present invention discloses an automated vacuum drying system and a control method thereof, which solves the problem that the existing drying system for high-nickel ternary positive electrode materials has poor drying effect and cannot ensure the consistency of the drying effect of high-nickel ternary positive electrode materials. It realizes the automation of the drying of high-nickel ternary positive electrode materials and effectively ensures the consistency of the drying effect of high-nickel ternary positive electrode materials.

[0005] To achieve the above object, the technical solution of the present invention is specifically implemented as follows:

[0006] On the one hand, the present invention discloses an automated vacuum drying system, comprising a material feeding module, a hot oil supply module, an exhaust module, a hot air recovery module, a hot oil recovery module, a multi-degree-of-freedom motion module, a vacuum dryer, a discharge module and a control module, wherein the material feeding module is used to add the required high-nickel ternary positive electrode material into the vacuum dryer, and monitor the weight of the high-nickel ternary positive electrode material added to the vacuum dryer in real time, and transmit the monitored weight of the high-nickel ternary positive electrode material added to the vacuum dryer to the control module; the hot oil supply module is used to provide heat transfer oil to the vacuum dryer, and monitor the flow rate and temperature of the heat transfer oil in real time, and transmit the monitored flow rate and temperature of the heat transfer oil to the control module; the exhaust module is used to add the required high-nickel ternary positive electrode material into .... The hot gas in the vacuum dryer is extracted to maintain the vacuum state in the vacuum dryer; the hot air recovery module is used to recover the hot gas extracted by the exhaust module, and monitor the hot air recovery time and the hot air recovery flow in real time, and transmit the monitored hot air recovery time and the hot air recovery flow to the control module; the hot oil recovery module is used to recover the heat transfer oil, and monitor the hot oil recovery time and the hot oil recovery flow in real time, and transmit the monitored hot oil recovery time and the hot oil recovery flow to the control module; the multi-degree-of-freedom motion module is used to drive the vacuum dryer to rotate along its X-axis and Y-axis so that the material in the silo contacts the inner wall of the silo, and monitor the movement frequency and amplitude of the X-axis and Y-axis of the vacuum dryer, and transmit the monitored The X-axis and Y-axis motion frequency and motion amplitude are transmitted to the control module; the vacuum dryer is used to dry the material, and a humidity sensor, a temperature sensor and a pressure sensor are provided in the vacuum dryer. The humidity sensor is used to measure the humidity in the vacuum dryer in real time and transmit the humidity data to the control module; the temperature sensor is used to measure the temperature in the vacuum dryer in real time and transmit the temperature data to the control module; the pressure sensor is used to measure the pressure in the vacuum dryer in real time and transmit the pressure data to the control module; the unloading module is used to output the dried material; the control module is used to record and store the weight of the high nickel ternary positive electrode material added to the vacuum dryer sent by the material feeding module, and transmit the received The weight of the high-nickel ternary positive electrode material is compared with the preset value to control the weight of the high-nickel ternary positive electrode material delivered by the material delivery module; it is used to record and store the flow rate and temperature of the heat-conducting oil sent by the hot oil supply module, and compare the received flow rate and temperature of the heat-conducting oil with the preset value to control the flow rate and temperature of the heat-conducting oil supplied by the hot oil supply module; it is used to record and store the temperature, humidity and pressure values ​​in the vacuum dryer, and compare the received pressure value with the preset value to control the exhaust module; it is used to record and store the hot air recovery time and hot air recovery flow rate sent by the hot air recovery module, and compare the received hot air recovery time and hot air recovery flow rate with the preset value to control the hot air recovery module;Used to record and store the motion frequency and amplitude of the vacuum dryer's X-axis and Y-axis sent by the multi-degree-of-freedom motion module, and compare the received motion frequency and amplitude of the X-axis and Y-axis with the preset values ​​to control the multi-degree-of-freedom motion module; used to control the start and stop of the unloading module.

[0007] Furthermore, the material delivery module includes a weight meter for monitoring the weight of the high-nickel ternary positive electrode material added into the vacuum dryer by the material delivery module in real time, and sending the monitored data value to the control module.

[0008] Furthermore, the hot oil supply module includes a flow meter and a temperature sensor, wherein the flow meter is used to monitor the flow of the thermal oil supplied by the hot oil supply module in real time and send the monitored data value to the control module; the temperature sensor is used to monitor the temperature of the thermal oil supplied by the hot oil supply module in real time and send the monitored data value to the control module.

[0009] Furthermore, the air extraction module includes a vacuum pump for turning on or off air extraction according to a control command of the control module.

[0010] Furthermore, the multi-degree-of-freedom motion module includes a plurality of electric push rods.

[0011] Furthermore, the multi-degree-of-freedom motion module includes an X-axis motion frequency sensor, an X-axis motion amplitude sensor, a Y-axis motion frequency sensor, and a Y-axis motion amplitude sensor, wherein the X-axis motion frequency sensor is used to monitor the motion frequency of the vacuum dryer in the X-axis direction in real time and transmit the monitored value to the control module; the X-axis motion amplitude sensor is used to monitor the motion amplitude of the vacuum dryer in the X-axis direction in real time and transmit the monitored value to the control module; the Y-axis motion frequency sensor is used to monitor the motion frequency of the vacuum dryer in the Y-axis direction in real time and transmit the monitored value to the control module; the Y-axis motion amplitude sensor is used to monitor the motion amplitude of the vacuum dryer in the Y-axis direction in real time and transmit the monitored value to the control module.

[0012] Furthermore, the hot air recovery module includes a timer and a flow meter, wherein the timer is used to monitor the time of hot air recovery and transmit the monitored data value to the control module; the flow meter is used to monitor the flow rate of hot air recovery and transmit the monitored data value to the control module.

[0013] Furthermore, the hot oil recovery module includes a timer and a flow meter, wherein the timer is used to monitor the time of thermal oil recovery and transmit the monitored data value to the control module; the flow meter is used to monitor the flow of thermal oil recovery and transmit the monitored data value to the control module.

[0014] Another aspect of the present invention discloses a control method for an automated vacuum drying system, comprising the following steps:

[0015] The material feeding module adds the required high-nickel ternary cathode material into the vacuum dryer, monitors the weight of the high-nickel ternary cathode material added into the vacuum dryer in real time, and transmits the monitored weight of the high-nickel ternary cathode material added into the vacuum dryer to the control module;

[0016] The control module receives, records, and stores the weight of the high-nickel ternary cathode material added to the vacuum dryer by the material feeding module monitored in real time. If the weight of the high-nickel ternary cathode material added to the vacuum dryer is less than the preset value, the material feeding module is controlled to continue feeding;

[0017] The control module receives, records, and stores the temperature and humidity values ​​in the vacuum dryer sent by the temperature sensor and humidity sensor in the vacuum dryer, and compares the received values ​​with the preset values. If the temperature value is less than the preset temperature value, or the humidity value is greater than the preset humidity value, the flow rate and temperature of the heat transfer oil supplied by the hot oil supply module are controlled, and the multi-degree-of-freedom motion module is controlled;

[0018] The control module receives, records, and stores the pressure value in the vacuum dryer sent by the pressure sensor in the vacuum dryer, and compares the received data with a preset value. If the pressure value is greater than the preset pressure value, the control module controls the gas extraction module to extract gas;

[0019] The control module receives the hot air recovery time and hot air recovery flow value sent by the hot air recovery module, compares the received value with the preset value, and controls the hot air recovery module to recover the hot gas extracted by the exhaust module;

[0020] The control module receives the flow rate and temperature of the thermal oil sent by the hot oil supply module, compares the received values ​​with the preset values, and controls the hot oil recovery module to recover the thermal oil;

[0021] After drying is completed, the control module controls the unloading module to complete unloading;

[0022] The drying quality of each batch of products is tested, and the parameters obtained by each module are compared with the database generated by the drying quality test data and the influencing factors. The data in the database is iterated to obtain the optimal drying data.

[0023] Beneficial technical effects:

[0024] 1. The present invention discloses an automated vacuum drying system, comprising a material delivery module, a hot oil supply module, an air extraction module, a hot air recovery module, a hot oil recovery module, a multi-degree-of-freedom motion module, a vacuum dryer, a discharge module, and a control module. The control module can realize control of other modules, thereby solving the problem that the existing drying system for high-nickel ternary positive electrode materials has poor drying effect and cannot ensure the consistency of the drying effect of high-nickel ternary positive electrode materials. The system realizes the automation of the drying of high-nickel ternary positive electrode materials and effectively ensures the consistency of the drying effect of high-nickel ternary positive electrode materials.

[0025] 2. The automatic vacuum drying system disclosed in the present invention is provided with a hot air recovery module to recycle the hot air extracted from the vacuum dryer, thereby achieving an efficient and energy-saving production mode;

[0026] 3. The automatic vacuum drying system disclosed in the present invention is provided with a hot oil recovery module to realize the circulating heating utilization of the oil, effectively saving energy;

[0027] 4. The control method of the automated vacuum drying system disclosed in the present invention realizes the monitoring and control of the drying process, records and stores the real-time data of the reaction, compares the real-time monitoring data with the preset values, controls each other module through the control module, and can obtain the control parameter data of the optimal batch by comparing the quality of products in different batches. Through data iteration, the optimal control parameters are obtained to obtain the optimal drying data. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solution of the present invention, the following briefly introduces the drawings required for describing the embodiments.

[0029] Figure 1 This is a structural schematic diagram of an automated vacuum drying system according to the present invention. DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limiting. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] The present invention discloses an automated vacuum drying system. Figure 1 (It should be noted that the attached Figure 1 The solid line in the figure represents the flow direction of the material, and the dotted line represents the transmission direction of the signal), including a material feeding module, a hot oil supply module, an exhaust module, a hot air recovery module, a hot oil recovery module, a multi-degree-of-freedom motion module, a vacuum dryer, an unloading module and a control module. The control module can control the other modules according to the feedback from each other, thereby solving the problem that the existing drying system for high-nickel ternary positive electrode materials has poor drying effect and cannot ensure the consistency of the drying effect of high-nickel ternary positive electrode materials, realizing the automation of the drying of high-nickel ternary positive electrode materials, and effectively ensuring the consistency of the drying effect of high-nickel ternary positive electrode materials.

[0035] As an embodiment of the present invention, the material delivery module is used to add the required high-nickel ternary positive electrode material into the vacuum dryer, and monitor the weight of the high-nickel ternary positive electrode material added to the vacuum dryer in real time, and transmit the monitored weight of the high-nickel ternary positive electrode material added to the vacuum dryer to the control module. Preferably, the material delivery module includes a weight meter for monitoring the weight of the high-nickel ternary positive electrode material added to the vacuum dryer by the material delivery module in real time, and sending the monitored data value to the control module; the hot oil supply module is used to provide heat transfer oil for the vacuum dryer (it should be understood that the vacuum dryer is mainly divided into three layers, the innermost layer is the silo, and the second The first layer is a jacket, the third layer is an insulation layer, and the second jacket is filled with heat transfer oil for heating the silo. The function of the hot oil supply module is to fill the jacket with hot oil to ensure the temperature in the silo and heat the positive electrode material), and monitor the flow and temperature of the heat transfer oil in real time, and transmit the monitored flow and temperature of the heat transfer oil to the control module. Preferably, the hot oil supply module includes a flow meter and a temperature sensor, wherein the flow meter is used to monitor the flow of the heat transfer oil supplied by the hot oil supply module in real time, and send the monitored data value to the control module; the temperature sensor is used to monitor the temperature of the heat transfer oil supplied by the hot oil supply module in real time, and send the monitored data value to the control module.

[0036] As an embodiment of the present invention, an exhaust module is used to extract hot gas in the vacuum dryer to maintain a vacuum state in the vacuum dryer. Preferably, the exhaust module includes a vacuum pump to turn on or off the exhaust according to the control command of the control module; the hot air recovery module is used to recover the hot gas extracted by the exhaust module, and monitor the hot air recovery time and the hot air recovery flow in real time, and transmit the monitored hot air recovery time and the hot air recovery flow to the control module. The exhaust module extracts the hot air generated in the vacuum dryer, and then recycles it by the hot air recovery system to heat the oil, thereby realizing an efficient and energy-saving production mode; the hot oil recovery module is used to recover the heat transfer oil, and monitor the hot oil recovery time and the hot oil recovery flow in real time, and transmit the monitored hot oil recovery time and the hot oil recovery flow to the control module. The hot oil supply module provides heat in the vacuum dryer, and the oil that provides heat needs to be recovered by the hot oil recovery module and heated again to realize the circulating heating utilization of the oil;

[0037] As an embodiment of the present invention, the multi-degree-of-freedom motion module is used to drive the vacuum dryer to rotate along its X-axis and Y-axis, so that the material in the silo contacts the inner wall of the silo, and monitors the motion frequency and motion amplitude of the X-axis and Y-axis of the vacuum dryer, and transmits the monitored motion frequency and motion amplitude of the X-axis and Y-axis to the control module. Preferably, the multi-degree-of-freedom motion module includes a plurality of electric push rods, that is, the roll motion and pitch motion of the vacuum dryer are realized by multiple electric push rods, which can improve the movement and drying effect of the material in the vacuum dryer, and at the same time solve the problem of equipment life (the existing vibration dryer uses a vibration motor as a power source, which is equivalent to a cylinder, and then continuously impacts and knocks to make the material inside move, so that the knocking vibration causes the equipment life to be very short). Optionally, the multi-degree-of-freedom motion module also includes an X-axis motion frequency sensor, an X-axis motion amplitude sensor, a Y-axis motion frequency sensor and a Y-axis motion amplitude sensor. Specifically, the X-axis motion frequency sensor is used to monitor the motion frequency of the vacuum dryer in the X-axis direction in real time and transmit the monitored value to the control module; the X-axis motion amplitude sensor is used to monitor the motion amplitude of the vacuum dryer in the X-axis direction in real time and transmit the monitored value to the control module; the Y-axis motion frequency sensor is used to monitor the motion frequency of the vacuum dryer in the Y-axis direction in real time and transmit the monitored value to the control module; the Y-axis motion amplitude sensor is used to monitor the motion amplitude of the vacuum dryer in the Y-axis direction in real time and transmit the monitored value to the control module.

[0038] As an embodiment of the present invention, a vacuum dryer is used to dry the material. A humidity sensor, a temperature sensor and a pressure sensor are provided in the vacuum dryer. The humidity sensor is used to measure the humidity in the vacuum dryer in real time and transmit the humidity data to the control module; the temperature sensor is used to measure the temperature in the vacuum dryer in real time and transmit the temperature data to the control module; the pressure sensor is used to measure the pressure in the vacuum dryer in real time and transmit the pressure data to the control module; and the unloading module is used to output the dried material.

[0039] As an embodiment of the present invention, the control module is used to record and store the weight of the high-nickel ternary positive electrode material added to the vacuum dryer sent by the material delivery module, and compare the weight of the received high-nickel ternary positive electrode material with the preset value to control the weight of the high-nickel ternary positive electrode material delivered by the material delivery module; to record and store the flow rate and temperature of the heat transfer oil sent by the hot oil supply module, and compare the flow rate and temperature of the received heat transfer oil with the preset value to control the flow rate and temperature of the heat transfer oil supplied by the hot oil supply module; to record and store the temperature, humidity and pressure values ​​in the vacuum dryer, and compare the received pressure value with the preset value to control the exhaust module; to record and store the hot air recovery time and hot air recovery flow rate sent by the hot air recovery module, and compare the received hot air recovery flow rate with the preset value to control the hot air recovery flow rate. The collection time and the flow rate of hot air recovery are compared with the preset value to control the hot air recovery module; it is used to record and store the movement frequency and movement amplitude of the X-axis and Y-axis of the vacuum dryer sent by the multi-degree-of-freedom motion module, and compare the received movement frequency and movement amplitude of the X-axis and Y-axis with the preset value to control the multi-degree-of-freedom motion module; it is used to control the start and stop of the unloading module. Preferably, the control module is equipped with PLC controller, touch screen and other equipment to realize intelligent monitoring and control of the drying process, as well as real-time recording and storage of drying data, which is convenient for production management and process optimization. Appropriate input conditions and process parameters can be set, such as the amount of positive electrode material added, hot oil temperature, heating time, roll amplitude, roll amplitude frequency, pitch amplitude, pitch amplitude frequency, etc., to ensure the high efficiency of the drying effect.

[0040] It can be understood that the automated vacuum drying system disclosed in the present invention can not only display the overall production architecture, production structure and material flow, but also display the status of all equipment, production steps and alarm prompt information, etc. The system can generate production data reports such as curve charts and bar charts, electric heating energy consumption reports, and generate a corresponding database. All statistical data can be stored for at least half a year, and the data can be queried and exported, and compared according to the quality of batch products to obtain the optimal solution for the drying effect.

[0041] Another aspect of the present invention discloses a control method for an automated vacuum drying system, comprising the following steps:

[0042] The material feeding module adds the required high-nickel ternary cathode material into the vacuum dryer, monitors the weight of the high-nickel ternary cathode material added into the vacuum dryer in real time, and transmits the monitored weight of the high-nickel ternary cathode material added into the vacuum dryer to the control module;

[0043] The control module receives, records, and stores the weight of the high-nickel ternary cathode material added to the vacuum dryer by the material feeding module monitored in real time. If the weight of the high-nickel ternary cathode material added to the vacuum dryer is less than the preset value, the material feeding module is controlled to continue feeding;

[0044] The control module receives, records, and stores the temperature and humidity values ​​in the vacuum dryer sent by the temperature sensor and humidity sensor in the vacuum dryer, and compares the received values ​​with the preset values. If the temperature value is less than the preset temperature value, or the humidity value is greater than the preset humidity value, the flow rate and temperature of the heat transfer oil supplied by the hot oil supply module are controlled, and the multi-degree-of-freedom motion module is controlled;

[0045] The control module receives, records, and stores the pressure value inside the vacuum dryer sent by the pressure sensor inside the vacuum dryer, and compares the received data with the preset value. If the pressure value is greater than the preset pressure value, the exhaust module is controlled to extract gas;

[0046] The control module receives the hot air recovery time and hot air recovery flow value sent by the hot air recovery module, compares the received value with the preset value, and controls the hot air recovery module to recover the hot air extracted by the exhaust module;

[0047] The control module receives the flow rate and temperature of the thermal oil sent by the hot oil supply module, compares the received values ​​with the preset values, and controls the hot oil recovery module to recover the thermal oil;

[0048] After drying is completed, the control module controls the unloading module to complete unloading;

[0049] The drying quality of each batch of products is tested, and the parameters obtained by each module are compared with the database generated by the drying quality test data and the influencing factors. The data in the database is iterated to obtain the optimal drying data.

[0050] A control module is provided in the automated drying system disclosed in the present invention to monitor and control the drying process, record and store real-time data of the reaction, compare the real-time monitored data with the process preset values, control each other module through the control module, and obtain the control parameter data of the optimal batch by comparing the quality of products of different batches. Through data iteration, the optimal control parameters are obtained and the optimal process data are obtained.

[0051] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0052] The above embodiments are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineers and technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. An automated vacuum drying system, characterized in that: include: A material feeding module is used to add the required high-nickel ternary cathode material into the vacuum dryer, monitor the weight of the high-nickel ternary cathode material added to the vacuum dryer in real time, and transmit the monitored weight of the high-nickel ternary cathode material added to the vacuum dryer to the control module; The hot oil supply module is used to provide heat transfer oil to the vacuum dryer, monitor the flow rate and temperature of the heat transfer oil in real time, and transmit the monitored flow rate and temperature of the heat transfer oil to the control module; The exhaust module is used to extract the hot gas in the vacuum dryer to maintain the vacuum state in the vacuum dryer; A hot air recovery module is used to recover the hot air extracted by the exhaust module, monitor the hot air recovery time and the hot air recovery flow in real time, and transmit the monitored hot air recovery time and hot air recovery flow to the control module; The hot oil recovery module is used to recover the heat transfer oil, monitor the hot oil recovery time and the hot oil recovery flow in real time, and transmit the monitored hot oil recovery time and hot oil recovery flow to the control module; The multi-degree-of-freedom motion module is used to drive the vacuum dryer to rotate along its X-axis and Y-axis so that the material in the silo contacts the inner wall of the silo, and monitor the motion frequency and amplitude of the vacuum dryer along the X-axis and Y-axis, and transmit the monitored motion frequency and amplitude of the X-axis and Y-axis to the control module; A vacuum dryer is used to dry the material. The vacuum dryer is provided with: Humidity sensor, used to measure the humidity inside the vacuum dryer in real time and transmit the humidity data to the control module; Temperature sensor, used to measure the temperature inside the vacuum dryer in real time and transmit the temperature data to the control module; A pressure sensor is used to measure the pressure inside the vacuum dryer in real time and transmit the pressure data to the control module; Unloading module, used to output the dried materials; A control module, for recording and storing the weight of the high-nickel ternary positive electrode material added to the vacuum dryer sent by the material delivery module, and comparing the weight of the received high-nickel ternary positive electrode material with a preset value to control the weight of the high-nickel ternary positive electrode material delivered by the material delivery module; for recording and storing the flow rate and temperature of the thermal oil sent by the hot oil supply module, and comparing the flow rate and temperature of the received thermal oil with a preset value to control the flow rate and temperature of the thermal oil supplied by the hot oil supply module; for recording and storing the temperature, humidity and pressure values ​​in the vacuum dryer, and comparing the received pressure value with a preset value to control the exhaust module; for recording and storing the hot air recovery time and hot air recovery flow rate sent by the hot air recovery module, and comparing the received hot air recovery time and hot air recovery flow rate with a preset value to control the hot air recovery module; for recording and storing the motion frequency and motion amplitude of the X-axis and Y-axis of the vacuum dryer sent by the multi-degree-of-freedom motion module, and comparing the received motion frequency and motion amplitude of the X-axis and Y-axis with the preset value to control the multi-degree-of-freedom motion module; Used to control the start and stop of the unloading module.

2. An automated vacuum drying system according to claim 1, characterized in that: The material delivery module includes a weight meter for monitoring the weight of the high-nickel ternary positive electrode material added into the vacuum dryer by the material delivery module in real time, and sending the monitored data value to the control module.

3. The automated vacuum drying system according to claim 1, characterized in that: The hot oil supply module comprises: A flow meter, for monitoring the flow of the thermal oil supplied by the hot oil supply module in real time, and sending the monitored data value to the control module; The temperature sensor is used to monitor the temperature of the heat transfer oil supplied by the hot oil supply module in real time and send the monitored data value to the control module.

4. The automated vacuum drying system according to claim 1, characterized in that: The air extraction module includes a vacuum pump for turning on or off air extraction according to a control command of the control module.

5. The automated vacuum drying system according to claim 1, characterized in that: The multi-degree-of-freedom motion module includes a plurality of electric push rods.

6. The automated vacuum drying system according to claim 1, characterized in that: The multi-degree-of-freedom motion module includes: An X-axis motion frequency sensor is used to monitor the motion frequency of the vacuum dryer in the X-axis direction in real time and transmit the monitored value to the control module; An X-axis motion amplitude sensor is used to monitor the motion amplitude of the vacuum dryer in the X-axis direction in real time and transmit the monitored value to the control module; A Y-axis motion frequency sensor is used to monitor the motion frequency of the vacuum dryer in the Y-axis direction in real time and transmit the monitored value to the control module; The Y-axis motion amplitude sensor is used to monitor the motion amplitude of the vacuum dryer in the Y-axis direction in real time and transmit the monitored value to the control module.

7. The automated vacuum drying system according to claim 1, characterized in that: The hot air recovery module comprises: a timer for monitoring the hot air recovery time and transmitting the monitored data value to the control module; The flow meter is used to monitor the flow rate of hot air recovery and transmit the monitored data value to the control module.

8. The automated vacuum drying system according to claim 1, characterized in that: The hot oil recovery module includes: A timer for monitoring the recovery time of the thermal oil and transmitting the monitored data value to the control module; The flow meter is used to monitor the flow of recovered thermal oil and transmit the monitored data value to the control module.

9. A control method for an automated vacuum drying system according to claim 1, characterized in that: The following steps are involved: The material feeding module adds the required high-nickel ternary cathode material into the vacuum dryer, monitors the weight of the high-nickel ternary cathode material added into the vacuum dryer in real time, and transmits the monitored weight of the high-nickel ternary cathode material added into the vacuum dryer to the control module; The control module receives, records, and stores the weight of the high-nickel ternary cathode material added to the vacuum dryer by the material feeding module monitored in real time. If the weight of the high-nickel ternary cathode material added to the vacuum dryer is less than the preset value, the material feeding module is controlled to continue feeding; The control module receives, records, and stores the temperature and humidity values ​​in the vacuum dryer sent by the temperature sensor and humidity sensor in the vacuum dryer, and compares the received values ​​with the preset values. If the temperature value is less than the preset temperature value, or the humidity value is greater than the preset humidity value, the flow rate and temperature of the heat transfer oil supplied by the hot oil supply module are controlled, and the multi-degree-of-freedom motion module is controlled; The control module receives, records, and stores the pressure value in the vacuum dryer sent by the pressure sensor in the vacuum dryer, and compares the received data with a preset value. If the pressure value is greater than the preset pressure value, the control module controls the gas extraction module to extract gas; The control module receives the hot air recovery time and hot air recovery flow value sent by the hot air recovery module, compares the received value with the preset value, and controls the hot air recovery module to recover the hot gas extracted by the exhaust module; The control module receives the flow rate and temperature of the thermal oil sent by the hot oil supply module, compares the received values ​​with the preset values, and controls the hot oil recovery module to recover the thermal oil; After drying is completed, the control module controls the unloading module to complete unloading; The drying quality of each batch of products is tested, and the parameters obtained by each module are compared with the database generated by the drying quality test data and the influencing factors. The data in the database is iterated to obtain the optimal drying data.

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