Water removal device for solid electrolyte powder

Abstract

The utility model provides a solid electrolyte powder dewatering device, which relates to the technical field of powder dewatering equipment, and comprises a vacuum oil pump, a condensation mechanism, a vacuum oven and a nitrogen storage tank, the condensation mechanism is connected and communicated with the vacuum oil pump through a first connecting pipe; one side of the vacuum oven is connected and communicated with one side, far away from the vacuum oil pump, of the condensation mechanism through a second connecting pipe; the nitrogen storage tank is connected and communicated with the side, away from the condensation mechanism, of the vacuum drying oven through a third connecting pipe. The water removal device for the solid electrolyte powder can realize high-efficiency water removal, so that the performance of a solid-state battery is effectively protected, and the stability of the solid-state battery is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of powder dehydration equipment, specifically to a solid electrolyte powder dehydration device. Background Technology

[0002] Solid-state batteries, as a novel battery technology, have garnered significant attention in recent years due to their high energy density, long cycle life, and safety advantages. Their core lies in the use of solid-state electrolytes, which effectively avoid problems such as electrolyte leakage and combustion that can occur in traditional liquid batteries, thus greatly improving battery safety.

[0003] In the research and development and production of solid-state batteries, the moisture content of battery materials is a crucial factor. Moisture not only affects the electrochemical performance of battery materials but may also lead to adverse reactions within the battery, reducing its overall performance. Therefore, effectively reducing the moisture content of battery materials has become a key challenge in the development of solid-state batteries.

[0004] However, the currently widely used static dehydration devices and dynamic spray drying methods both have shortcomings in dehydration effectiveness. These methods not only fail to remove a significant amount of moisture from the material, but also easily lead to the material reabsorbing water during subsequent processing, thus seriously affecting the performance and stability of solid-state batteries. Utility Model Content

[0005] Therefore, in order to solve the problem of difficulty in removing moisture from solid-state battery materials to a large extent, which leads to the materials reabsorbing water during subsequent processing and thus seriously affecting the performance and stability of solid-state batteries, the purpose of this utility model is to provide a solid electrolyte powder dehydration device, the specific technical solution of which is as follows:

[0006] A solid electrolyte powder dehydration device includes a vacuum oil pump, a condensation mechanism, a vacuum oven, and a nitrogen storage tank. The condensation mechanism is connected to the vacuum oil pump via a first connecting pipe. One side of the vacuum oven is connected to the side of the condensation mechanism away from the vacuum oil pump via a second connecting pipe. The nitrogen storage tank is connected to the side of the vacuum oven away from the condensation mechanism via a third connecting pipe.

[0007] Furthermore, the condensation mechanism includes a condenser and a condensation chamber. The condenser is disposed inside the condensation chamber, which contains coolant. The condenser is immersed in the coolant, and one end of the condenser is connected to and communicates with the vacuum oil pump through the first connecting pipe.

[0008] Furthermore, the vacuum oven includes a chamber and a demagnetizing structure. The demagnetizing structure is disposed inside the chamber. An air inlet is provided on one side of the chamber, and an air extraction port is provided on the side of the chamber away from the air inlet. The end of the second connecting pipe away from the vacuum oil pump is connected to and communicates with the air extraction port. The end of the third connecting pipe away from the nitrogen storage tank passes through the air inlet and is connected to and communicates with the demagnetizing structure.

[0009] Furthermore, the demagnetizing structure includes several sleeves, a fourth connecting tube, and several magnetic rods. Each magnetic rod is correspondingly arranged inside each sleeve. The fourth connecting tube is connected and communicates with each sleeve. One end of the fourth connecting tube is connected and communicates with the third connecting tube. The end of the fourth connecting tube away from the third connecting tube communicates with the interior of the vacuum oven.

[0010] Furthermore, the sleeves are arranged in parallel, and the fourth connecting pipe is arranged in a spiral shape.

[0011] Furthermore, the vacuum oven is provided with two baffles, and the demagnetizing structure is disposed between the two baffles.

[0012] Furthermore, the bottom of the vacuum oven is provided with several anti-slip pads.

[0013] Furthermore, at least one vacuum sensor is installed inside the vacuum oven.

[0014] Furthermore, at least one temperature sensor is installed inside the vacuum oven.

[0015] Furthermore, the vacuum oven is equipped with a temperature controller and a vacuum gauge.

[0016] Compared with existing technologies, the advantages of this invention are as follows: By setting up a vacuum oil pump, negative pressure can be generated to quickly extract air and moisture from the vacuum oven, providing a low-oxygen, low-humidity environment for the solid electrolyte powder, which is conducive to accelerating the evaporation and removal of moisture. The continuous operation of the vacuum oil pump ensures that the oven always maintains a high vacuum, thereby greatly improving the dehydration efficiency. By setting up a condensation mechanism, the air containing moisture extracted by the vacuum oil pump is condensed using the cooling principle, causing water vapor to condense into liquid water, which reduces the water content in the air inside the vacuum oven. No water vapor will enter the vacuum oil pump, ensuring the normal operation of the vacuum oil pump and avoiding the impact of moisture fluctuations on the dehydration effect and equipment performance. By setting up a vacuum oven and maintaining a high vacuum, a dry, oxygen-free heating environment is provided for the solid electrolyte powder, which is conducive to the rapid evaporation and removal of moisture inside the powder. Attached Figure Description

[0017] The present invention can be further understood from the following description in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but the focus is on illustrating the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0018] Figure 1 This is a schematic diagram of the solid electrolyte powder dehydration device according to an embodiment of the present invention;

[0019] Figure 2 This is a cross-sectional view of the condensation mechanism according to an embodiment of the present invention;

[0020] Figure 3 This is a simplified structural diagram of a vacuum drying oven according to an embodiment of the present invention;

[0021] Figure 4 This is a simplified structural diagram of the demagnetizing structure according to an embodiment of the present invention.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Vacuum oil pump; 2. Condensation mechanism; 21. Condenser; 22. Condensation chamber; 3. First connecting pipe; 4. Vacuum oven; 41. Chamber; 411. Air inlet; 412. Air extraction port; 413. Air vent; 42. Demagnetizing structure; 421. Sleeve; 422. Fourth connecting pipe; 423. Magnetic rod; 43. Baffle; 44. Anti-slip pad; 45. Temperature controller; 46. Vacuum gauge; 5. Second connecting pipe; 6. Nitrogen storage tank; 7. Third connecting pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and do not limit the scope of protection of this utility model.

[0025] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0027] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0028] like Figure 1 As shown, a solid electrolyte powder dehydration device according to one embodiment of this utility model includes a vacuum oil pump 1, a condensation mechanism 2, a vacuum oven 4, and a nitrogen storage tank 6. The condensation mechanism 2 is connected to the vacuum oil pump 1 via a first connecting pipe 3. One side of the vacuum oven 4 is connected to the side of the condensation mechanism 2 away from the vacuum oil pump 1 via a second connecting pipe 5. The nitrogen storage tank 6 is connected to the side of the vacuum oven 4 away from the condensation mechanism 2 via a third connecting pipe 7. The nitrogen storage tank 6 stores high-temperature, high-purity nitrogen, which allows nitrogen molecules to be adsorbed onto the surface of the solid electrolyte powder, reducing the surface water absorption characteristics of the solid electrolyte powder and improving the performance of the solid electrolyte. By setting up a vacuum oil pump 1, negative pressure is generated to quickly extract air and moisture from the vacuum oven 4, providing a low-oxygen, low-humidity environment for the solid electrolyte powder. This facilitates the evaporation and removal of moisture. The continuous operation of the vacuum oil pump 1 ensures that the oven maintains a high vacuum, thereby greatly improving the dehydration efficiency. By setting up a condensation mechanism 2, the air containing moisture extracted by the vacuum oil pump 1 is condensed using the cooling principle, causing water vapor to condense into liquid water. This reduces the water content in the air inside the vacuum oven 4 and prevents water vapor from entering the vacuum oil pump 1, ensuring its normal operation and avoiding the impact of moisture fluctuations on the dehydration effect and equipment performance. By setting up the vacuum oven 4 and maintaining a high vacuum, a dry, oxygen-free heating environment is provided for the solid electrolyte powder, which is conducive to the rapid evaporation and removal of moisture inside the powder.

[0029] Please see Figure 2As a preferred embodiment of this utility model, it may also have the following additional technical features: The condensing mechanism 2 includes a condenser 21 and a condensing chamber 22. The condenser 21 is disposed inside the condensing chamber 22, which contains coolant. The condenser 21 is immersed in the coolant. One end of the condenser 21 is connected to the vacuum oil pump 1 via a first connecting pipe 3. The coolant (usually water or a specific refrigerant) circulates within the condensing chamber 22, effectively absorbing and removing the heat generated by the condenser 21 during operation. Through the condensing mechanism 2, most of the water vapor is removed before reaching the vacuum oil pump 1, effectively preventing water vapor from damaging the vacuum oil pump 1 and extending the service life of the equipment. During the water removal process, the gas containing water vapor is introduced into the condenser 21 through the second connecting pipe 5. As the gas flows within the condenser 21, its temperature drops rapidly due to contact with the cooled condenser 21 wall, causing the water vapor to condense into liquid water. This condensate is then collected and discharged from the system, while the dried gas continues to flow to the vacuum oil pump 1 for further processing.

[0030] Please see Figure 3 As a preferred embodiment of this utility model, it may also have the following additional technical features: The vacuum oven 4 includes a chamber 41 and a demagnetizing structure 42. The demagnetizing structure 42 is disposed inside the chamber 41. An air inlet 411 is provided on one side of the chamber 41 for introducing high-temperature nitrogen gas. An air extraction port 412 is provided on the side of the chamber 41 away from the air inlet 411. The gas inside the chamber 41 is extracted by a vacuum oil pump 1 to form a vacuum environment. The end of the second connecting pipe 5 away from the vacuum oil pump 1 is connected to and communicates with the air extraction port 412. The end of the third connecting pipe 7 away from the nitrogen gas storage tank 6 passes through the air inlet 411 and is connected to and communicates with the demagnetizing structure 42. Since the introduced high-temperature nitrogen gas can introduce magnetic materials, and the introduction of magnetic materials into the electrolyte powder can easily cause safety problems in solid-state batteries, the demagnetizing structure 42 can effectively remove magnetic materials from the high-temperature nitrogen gas. In this embodiment, the chamber 41 is also provided with a vent 413 for timely discharge of excess air.

[0031] Please see Figure 4As a preferred embodiment of this utility model, it may also have the following additional technical features: the demagnetizing structure 42 includes several sleeves 421, a fourth connecting pipe 422, and several magnetic rods 423. Each magnetic rod 423 is correspondingly arranged inside each sleeve 421, thereby realizing the demagnetization treatment of the material flowing through the sleeve 421. The fourth connecting pipe 422 is connected and communicates with each sleeve 421. One end of the fourth connecting pipe 422 is connected and communicates with the third connecting pipe 7, and the end of the fourth connecting pipe 422 away from the third connecting pipe 7 communicates with the interior of the vacuum oven 4. The number of sleeves 421 can be increased or decreased according to actual needs to meet different demagnetization requirements. The fourth connecting pipe 422 serves to connect each sleeve 421 and the third connecting pipe 7, ensuring that the material can flow smoothly from one end, be demagnetized by the magnetic rods 423 inside the sleeve 421, and then enter the interior of the vacuum oven 4.

[0032] As a preferred embodiment of this utility model, it may also have the following additional technical features: The sleeves 421 are arranged in parallel, which maximizes space utilization, making the entire demagnetizing structure 42 more compact and easier to install and maintain. Because the sleeves 421 are arranged in parallel, the material is subjected to a uniform magnetic field when flowing through each sleeve 421, thus ensuring consistent demagnetizing effect. If it is necessary to increase the demagnetizing capacity, simply increase the number of sleeves 421 without making large-scale modifications to the entire structure. The fourth connecting tube 422 is spirally arranged. The spiral design makes the path of material flow within the fourth connecting tube 422 longer, thereby increasing the contact time with the magnetic rod 423 inside the sleeve 421, which is beneficial to improving demagnetizing efficiency.

[0033] As a preferred embodiment of this utility model, it may also have the following additional technical features: Two baffles 43 are provided inside the vacuum oven 4, and the demagnetizing structure 42 is disposed between the two baffles 43. The baffles 43 divide the interior of the vacuum oven 4 into different areas, allowing the demagnetizing structure 42 to operate in a relatively independent space. This helps to reduce possible interference during the demagnetization process and improves demagnetization efficiency.

[0034] As a preferred embodiment of this utility model, it may also have the following additional technical features: the bottom of the vacuum oven 4 is provided with several anti-slip pads 44. This prevents the oven from sliding or tipping over due to vibration or external force during operation, helping to ensure the safe operation of the equipment and reducing potential safety hazards.

[0035] As a preferred embodiment of this utility model, it may also have the following additional technical features: at least one vacuum sensor is installed inside the vacuum oven 4. The vacuum sensor can monitor the changes in vacuum level inside the oven in real time, ensuring that the oven maintains the required vacuum level during operation. By monitoring and adjusting the vacuum level in real time, the optimal effect of these processes can be ensured, thereby improving the quality and performance of the product. If the vacuum level inside the oven fluctuates abnormally or exceeds the set range, the vacuum sensor can promptly issue an early warning signal, reminding the operator to take measures to troubleshoot and repair, preventing the fault from escalating further.

[0036] As a preferred embodiment of this utility model, it may also have the following additional technical features: at least one temperature sensor is installed inside the vacuum oven 4. The temperature sensor can monitor the temperature changes inside the oven in real time, ensuring that the oven is always maintained within the required temperature range during operation. If the temperature inside the oven fluctuates abnormally or exceeds the set range, the temperature sensor can promptly issue an early warning signal, reminding the operator to take measures to troubleshoot and repair, preventing the fault from escalating further.

[0037] As a preferred embodiment of this utility model, it may also have the following additional technical features: a temperature controller 45 and a vacuum gauge 46 are provided on the vacuum oven 4. The temperature controller 45 allows the user to set the desired temperature value and displays the actual temperature inside the oven in real time, which helps the user to understand the working status of the oven at any time and make adjustments as needed. The vacuum gauge 46 can display the vacuum level value inside the oven in real time, which helps the user to understand whether the vacuum environment inside the oven meets the process requirements.

[0038] The working principle of the solid electrolyte powder dehydration device in this embodiment is as follows: High-temperature, high-purity nitrogen gas is introduced into the vacuum oven 4 from the nitrogen storage tank 6 through the third connecting pipe 7. It first flows through the demagnetizing structure 42, which consists of several sleeves 421 and magnetic rods 423. Magnetic substances in the nitrogen gas are adsorbed and removed as it flows through the magnetic rods 423, ensuring that the nitrogen gas entering the vacuum oven 4 is free of magnetic substances. The demagnetized nitrogen gas then enters the vacuum oven 4 through the fourth connecting pipe 422. Simultaneously, the vacuum oil pump 1 is connected to the condensing mechanism 2 through the first connecting pipe 3, and begins to extract air and moisture from the vacuum oven 4, creating a low-oxygen, low-humidity vacuum environment. The gas in the vacuum oven 4 is then introduced into the condensing mechanism 2 through the second connecting pipe 5. In the condensing mechanism 2, when the moisture-containing air passes through the condenser 21, the gas temperature drops rapidly because the condenser 21 is immersed in coolant, causing water vapor to condense into liquid water. The dried gas continues to flow to vacuum oil pump 1 for further processing, ensuring that the inside of vacuum oil pump 1 is not damaged by moisture. Inside the vacuum oven 4, a high vacuum and a set temperature environment are maintained, which is conducive to the rapid evaporation and removal of moisture inside the solid electrolyte powder. When the moisture in the solid electrolyte powder reaches the predetermined removal standard, the nitrogen gas supply and vacuum oil pump 1 are turned off, ending the dehydration process.

[0039] The solid electrolyte powder dehydration device of this embodiment has a reasonable structural design and is easy to use. This structure can also be used for other devices with similar usage requirements. In this embodiment, the solid electrolyte powder dehydration device can achieve efficient dehydration, thereby effectively protecting the performance of the solid battery and improving its stability.

[0040] In the description of the above embodiments, greater than, less than, and more than are understood to exclude the number itself, several and more mean one or more, and above, below, and within are understood to include the number itself. If the first and second are described, they are only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The above-described embodiments are merely examples of several implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of the utility model patent. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A device for dehydrating solid electrolyte powder, characterized in that, include: Vacuum oil pump; A condensation mechanism, wherein the condensation mechanism is connected to and communicates with the vacuum oil pump via a first connecting pipe; A vacuum oven, one side of which is connected and communicated with the side of the condensing mechanism away from the vacuum oil pump via a second connecting pipe; A nitrogen storage tank is connected to and communicates with the side of the vacuum oven away from the condensation mechanism via a third connecting pipe.

2. The solid electrolyte powder dehydration device according to claim 1, characterized in that, The condensation mechanism includes a condenser and a condensation chamber. The condenser is disposed inside the condensation chamber, which contains coolant. The condenser is immersed in the coolant. One end of the condenser is connected to the vacuum oil pump through the first connecting pipe.

3. The solid electrolyte powder dehydration device according to claim 1, characterized in that, The vacuum oven includes a chamber and a demagnetizing structure. The demagnetizing structure is disposed inside the chamber. An air inlet is provided on one side of the chamber, and an air extraction port is provided on the side of the chamber away from the air inlet. The end of the second connecting pipe away from the vacuum oil pump is connected to and communicates with the air extraction port. The end of the third connecting pipe away from the nitrogen storage tank passes through the air inlet and is connected to and communicates with the demagnetizing structure.

4. The solid electrolyte powder dehydration device according to claim 3, characterized in that, The demagnetizing structure includes several sleeves, a fourth connecting tube, and several magnetic rods. Each magnetic rod is correspondingly arranged inside each sleeve. The fourth connecting tube is connected and communicates with each sleeve. One end of the fourth connecting tube is connected and communicates with the third connecting tube. The end of the fourth connecting tube away from the third connecting tube communicates with the interior of the vacuum oven.

5. The solid electrolyte powder dehydration device according to claim 4, characterized in that, The sleeves are arranged in parallel, and the fourth connecting pipe is arranged in a spiral shape.

6. The solid electrolyte powder dehydration device according to claim 3, characterized in that, The vacuum oven is equipped with two baffles, and the demagnetizing structure is disposed between the two baffles.

7. The solid electrolyte powder dehydration device according to claim 3, characterized in that, The bottom of the vacuum oven is equipped with several anti-slip pads.

8. The solid electrolyte powder dehydration device according to claim 3, characterized in that, The vacuum oven is equipped with at least one vacuum sensor.

9. The solid electrolyte powder dehydration device according to claim 3, characterized in that, The vacuum oven is equipped with at least one temperature sensor.

10. The solid electrolyte powder dehydration device according to claim 3, characterized in that, The vacuum oven is equipped with a temperature controller and a vacuum gauge.

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