Water removal device for lithium ion battery production

By employing a shaking method for the load-bearing components and a heating method for the dehydration components during the lithium-ion battery production process, the problems of low drying uniformity and exhaust gas pollution in lithium-ion batteries have been solved, achieving a more efficient dehydration effect and an environmentally friendly drying process.

CN223500073UActive Publication Date: 2025-10-31GUIZHOU YANGDE NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202422865948.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-10-31
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

Existing dehydration devices used in lithium-ion battery production suffer from problems such as low drying uniformity and exhaust gas pollution during the drying process.

Method used

The lithium-ion battery is shaken by a load-bearing component and the gas is heated by a dehydration component. The lithium-ion battery is dried evenly by a jet pipe. Combined with stirring blades and heating rods, the gas circulation efficiency is improved and the exhaust emissions are reduced.

Benefits of technology

It improves the uniformity and stability of lithium-ion battery drying, reduces exhaust emissions, and lowers environmental pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lithium ion battery production, in particular to a water removal device for lithium ion battery production, which comprises a box body, a support spring, a bearing component, an exhaust pipe, an air pump, an air outlet pipe, a water removal component, a guide pipe, an air ejector pipe and a box door, a fan is installed on the upper side of the supporting frame, a storage net box is arranged on the upper side of the supporting frame, a fixing plate is arranged on the inner side of the storage net box, and positioning springs are arranged on the two sides of the fixing plate. The bearing component drives the lithium ion battery main body to shake, the uniformity of the drying process is improved, the water removal efficiency is improved, gas is heated through the water removal component, the heated gas is sprayed out through the gas spraying pipe to dry the lithium ion battery main body, the uniformity of entering gas is improved, the gas is circulated through the water removal component, and the water removal efficiency is improved. The exhaust amount of waste gas in the drying process is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of lithium-ion battery production technology, specifically a dehydration device for lithium-ion battery production. Background Technology

[0002] Lithium-ion batteries are a type of rechargeable battery that primarily relies on the movement of lithium ions between the positive and negative electrodes to function. During the production process, lithium-ion batteries need to be coated with an insulating film. However, before coating with the insulating film, the surface of the lithium-ion battery is cleaned to remove foreign matter. After cleaning, the lithium-ion batteries flow into a drying station to dry the residual moisture on the surface of the lithium-ion batteries.

[0003] Chinese patent discloses a dehydration device for lithium-ion battery production (authorization announcement number CN115143741B). This patented technology involves an operator activating a first heat-dissipating tube to dry the lithium-ion batteries. Then, by pushing the first sliding rods on both sides inwards, the buttons are no longer in contact with the dehydration tank, activating a second heat-dissipating tube to further dry the lithium-ion batteries, thus enhancing the dehydration effect and achieving the goal of having multiple heating tubes. However, the aforementioned dehydration device uses a discharge mechanism for storing lithium-ion batteries, and the dehydration process for stored lithium-ion batteries is static, resulting in low drying uniformity and reduced dehydration efficiency. Directly heating the interior of the dehydration device through heating tubes also results in low drying uniformity, negatively impacting the drying effect of the lithium-ion batteries. Furthermore, the gases generated after drying are directly discharged, causing air pollution. Therefore, those skilled in the art have provided a dehydration device for lithium-ion battery production to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a dehydration device for lithium-ion battery production, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dehydration device for lithium-ion battery production includes a housing, a supporting spring, a load-bearing component, an air extraction pipe, an air pump, an air outlet pipe, a dehydration component, a conduit, a jet pipe, and a door. The supporting spring is located at the lower end of the housing, the load-bearing component is located above the supporting spring, the air extraction pipe is located at the upper side of the housing, the air pump is located at one end of the air extraction pipe, the air outlet pipe is located at the output end of the air pump, the dehydration component is located at the upper side of the housing, the conduit is located at the upper end of one side of the dehydration component, the jet pipe is located at the lower end of the housing, and the door is located at the front of the housing. The load-bearing component includes a support frame, a vibration motor is installed on the lower side of the support frame, a fan is installed on the upper side of the support frame, a storage mesh box is provided on the upper side of the support frame, a fixing plate is provided on the inner side of the storage mesh box, positioning springs are provided on both sides of the fixing plate, and positioning plates are provided on the outer ends of the positioning springs. A lithium-ion battery body is provided inside the storage mesh box.

[0007] As a further embodiment of this utility model: the dewatering component includes a dewatering tank, a filter screen is provided at the lower end of the interior of the dewatering tank, a moisture-absorbing cotton is provided above the filter screen inside the dewatering tank, a heating rod is installed inside the dewatering tank near the moisture-absorbing cotton, a temperature sensor is installed inside the dewatering tank near the heating rod, a stirring blade is provided at the upper end of the interior of the dewatering tank, and a stirring motor is installed on one side of the dewatering tank corresponding to the stirring blade.

[0008] As a further embodiment of this utility model: the upper end of the housing is connected to the input end of the suction pipe, the output end of the suction pipe is connected to the input end of the outlet pipe through an air pump, the output end of the outlet pipe is connected to the lower end of the water removal component, the upper end of the water removal component is connected to the input end of the conduit, and the output end of the conduit is connected to the input end of the jet pipe.

[0009] As a further embodiment of this utility model: the bearing member is fixed to the upper end of the supporting spring by a support frame, and the lithium-ion battery body is fixed to the inside of the storage mesh box by a positioning plate.

[0010] As a further embodiment of this utility model: the output end of the air outlet pipe is connected to the lower end of the dewatering tank, the upper end of the dewatering tank is connected to the input end of the conduit, and the stirring blade is rotated inside the dewatering tank by a stirring motor.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The present invention relates to a dehydration device for lithium-ion battery production. The device uses a supporting component to drive the lithium-ion battery body to shake, thereby improving the uniformity of the drying process and improving the dehydration efficiency. The device also uses a positioning plate to fix the lithium-ion battery body, thereby improving the stability of the lithium-ion battery body during the dehydration process.

[0013] 2. The gas is heated by the dehydration component, and the heated gas is sprayed out through the jet pipe to dry the lithium-ion battery body. This improves the uniformity of the incoming gas and is beneficial to the drying effect of the lithium-ion battery. The gas is circulated by the dehydration component, which reduces the amount of waste gas discharged during the drying process and reduces environmental pollution. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of a dehydration device used in lithium-ion battery production.

[0015] Figure 2 This is a schematic diagram of a load-bearing component in a dehydration device used in lithium-ion battery production.

[0016] Figure 3 This is a perspective view of a water removal component in a water removal device used in lithium-ion battery production.

[0017] In the diagram: 1. Box body; 2. Support spring; 3. Load-bearing component; 4. Air extraction pipe; 5. Air pump; 6. Air outlet pipe; 7. Water removal component; 8. Conduit; 9. Air jet pipe; 10. Box door; 11. Support frame; 12. Vibration motor; 13. Fan; 14. Material storage box; 15. Fixing plate; 16. Positioning spring; 17. Positioning plate; 18. Lithium-ion battery body; 19. Water removal tank; 20. Water filter screen; 21. Moisture-absorbing cotton; 22. Heating rod; 23. Temperature sensor; 24. Stirring blade; 25. Stirring motor. Detailed Implementation

[0018] Please see Figures 1-3In this embodiment of the present invention, a dehydration device for lithium-ion battery production includes a housing 1, a supporting spring 2, a bearing member 3, an extraction pipe 4, an air pump 5, an outlet pipe 6, a dehydration component 7, a conduit 8, a jet pipe 9, and a door 10. The supporting spring 2 is located at the lower end of the housing 1, the bearing member 3 is located above the supporting spring 2, the extraction pipe 4 is located at the upper side of the housing 1, the air pump 5 is located at one end of the extraction pipe 4, the outlet pipe 6 is located at the output end of the air pump 5, the dehydration component 7 is located at the upper side of the housing 1, the conduit 8 is located at the upper end of one side of the dehydration component 7, and the jet pipe 9 is located at... At the lower end of the interior of the housing 1, the door 10 is located at the front of the housing 1. The supporting component 3 includes a support frame 11. A vibration motor 12 is installed on the lower side of the support frame 11, and a fan 13 is installed on the upper side of the support frame 11. A storage mesh box 14 is provided on the upper side of the support frame 11. A fixing plate 15 is provided on the inner side of the storage mesh box 14. Positioning springs 16 are provided on both sides of the fixing plate 15. Positioning plates 17 are provided on the outer ends of the positioning springs 16. A lithium-ion battery body 18 is provided inside the storage mesh box 14. The upper end of the housing 1 is connected to the input end of the air extraction pipe 4. The output end of the air extraction pipe 4 is connected to the air pump 5. The inlet end of the vent pipe 6 is connected to the outlet end of the vent pipe 6, and the outlet end of the vent pipe 6 is connected to the lower end of the dewatering component 7. The upper end of the dewatering component 7 is connected to the inlet end of the conduit 8, and the outlet end of the conduit 8 is connected to the inlet end of the jet pipe 9. The bearing component 3 is fixed to the upper end of the support spring 2 by the support frame 11. The lithium-ion battery body 18 is fixed to the inside of the storage mesh box 14 by the positioning plate 17. First, the lithium-ion battery body 18 is placed inside the storage mesh box 14. The positioning spring 16 rebounds and presses the positioning plate 17 to the outside of the lithium-ion battery body 18 to position the lithium-ion battery body 18. Then, the box door is closed. 10. Then, the air pump 5 operates to extract the gas inside the chamber 1 through the air extraction pipe 4, and introduces the gas into the interior of the dehydration component 7 through the air outlet pipe 6. The dehydration component 7 filters the water in the gas. The upper end of the dehydration component 7 is heated. The gas at the upper end of the dehydration component 7 enters the interior of the jet pipe 9 through the conduit 8. The gas discharged from the jet pipe 9 dries the lithium-ion battery body 18 on the support component 3. The fan 13 operates to mix the gas inside the chamber 1. The vibration motor 12 operates. The support frame 11 vibrates inside the chamber 1 through the support spring 2 to accelerate the drying uniformity of the lithium-ion battery body 18.

[0019] exist Figure 1 , 3In the middle section: the dewatering component 7 includes a dewatering tank 19. A filter screen 20 is installed at the lower end of the interior of the dewatering tank 19. A moisture-absorbing cotton 21 is installed above the filter screen 20 inside the dewatering tank 19. A heating rod 22 is installed inside the dewatering tank 19 near the moisture-absorbing cotton 21. A temperature sensor 23 is installed inside the dewatering tank 19 near the heating rod 22. A stirring blade 24 is installed at the upper end of the interior of the dewatering tank 19. A stirring motor 25 is installed on one side of the dewatering tank 19 corresponding to the stirring blade 24. The output end of the air outlet pipe 6 is connected to the lower end of the dewatering tank 19, and the upper end of the dewatering tank 19 is connected to the input end of the conduit 8. The ends are connected, and the stirring blade 24 is rotated by the stirring motor 25 to a position inside the dewatering tank 19. The air pump 5 operates to extract the gas inside the tank 1 through the air extraction pipe 4 and introduce the gas into the dewatering tank 19 through the air outlet pipe 6. The water filter screen 20 and the moisture-absorbing cotton 21 filter the water in the gas. The gas enters the upper end of the dewatering tank 19. The heating rod 22 operates to heat the gas at the upper end of the dewatering tank 19. The stirring motor 25 operates to drive the stirring blade 24 to rotate and mix the gas at the upper end of the dewatering tank 19. The gas at the upper end of the dewatering tank 19 enters the interior of the jet pipe 9 through the conduit 8. The gas discharged from the jet pipe 9 dries the lithium-ion battery body 18 on the supporting component 3.

[0020] The working principle of this utility model is as follows: First, the lithium-ion battery body 18 is placed inside the storage mesh box 14. The positioning spring 16 rebounds and presses the positioning plate 17 to the outside of the lithium-ion battery body 18 to position the lithium-ion battery body 18. The box door 10 is then closed. Then, the air pump 5 runs and extracts the gas inside the box 1 through the air extraction pipe 4. The gas is then introduced into the dewatering tank 19 through the air outlet pipe 6. The water filter screen 20 and the moisture-absorbing cotton 21 filter the water in the gas. The gas enters the upper part of the dewatering tank 19 and is heated. The rod 22 heats the gas at the top of the dewatering tank 19. The stirring motor 25 drives the stirring blade 24 to rotate and mix the gas at the top of the dewatering tank 19. The gas at the top of the dewatering tank 19 enters the interior of the jet pipe 9 through the conduit 8. The gas discharged from the jet pipe 9 dries the lithium-ion battery body 18 on the supporting component 3. The fan 13 mixes the gas inside the box 1. The vibration motor 12 runs, and the support frame 11 vibrates inside the box 1 through the support spring 2, which accelerates the drying uniformity of the lithium-ion battery body 18.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A dehydration device for lithium-ion battery production, comprising a housing (1), a supporting spring (2), a bearing member (3), an exhaust pipe (4), an air pump (5), an exhaust pipe (6), a dehydration component (7), a conduit (8), a jet pipe (9), and a door (10), wherein the supporting spring (2) is located at the lower end of the housing (1), the bearing member (3) is located above the supporting spring (2), the exhaust pipe (4) is located on the upper side of the housing (1), the air pump (5) is located at one end of the exhaust pipe (4), the exhaust pipe (6) is located at the output end of the air pump (5), the dehydration component (7) is located on the upper side of the housing (1), the conduit (8) is located at the upper end of one side of the dehydration component (7), the jet pipe (9) is located at the lower end of the housing (1), and the door (10) is located at the front of the housing (1), characterized in that, The supporting component (3) includes a support frame (11), a vibration motor (12) is installed on the lower side of the support frame (11), a fan (13) is installed on the upper side of the support frame (11), a storage mesh box (14) is provided on the upper side of the support frame (11), a fixing plate (15) is provided on the inner side of the storage mesh box (14), a positioning spring (16) is provided on both sides of the fixing plate (15), a positioning plate (17) is provided on the outer end of the positioning spring (16), and a lithium-ion battery body (18) is provided inside the storage mesh box (14).

2. The dehydration device for lithium-ion battery production according to claim 1, characterized in that, The dewatering component (7) includes a dewatering tank (19), a filter screen (20) is provided at the lower end of the interior of the dewatering tank (19), a moisture-absorbing cotton (21) is provided at the upper side of the filter screen (20) inside the dewatering tank (19), a heating rod (22) is installed inside the dewatering tank (19) near the moisture-absorbing cotton (21), a temperature sensor (23) is installed inside the dewatering tank (19) near the heating rod (22), a stirring blade (24) is provided at the upper end of the interior of the dewatering tank (19), and a stirring motor (25) is installed on one side of the dewatering tank (19) corresponding to the stirring blade (24).

3. The dehydration device for lithium-ion battery production according to claim 1, characterized in that, The upper end of the housing (1) is connected to the input end of the suction pipe (4), the output end of the suction pipe (4) is connected to the input end of the exhaust pipe (6) through the air pump (5), the output end of the exhaust pipe (6) is connected to the lower end of the water removal component (7), the upper end of the water removal component (7) is connected to the input end of the conduit (8), and the output end of the conduit (8) is connected to the input end of the jet pipe (9).

4. The dehydration device for lithium-ion battery production according to claim 1, characterized in that, The bearing member (3) is fixed to the upper end of the support spring (2) by the support frame (11), and the lithium-ion battery body (18) is fixed to the inside of the storage mesh box (14) by the positioning plate (17).

5. A dehydration device for lithium-ion battery production according to claim 2, characterized in that, The output end of the air outlet pipe (6) is connected to the lower end of the dewatering tank (19), the upper end of the dewatering tank (19) is connected to the input end of the conduit (8), and the stirring blade (24) is rotated inside the dewatering tank (19) by the stirring motor (25).

Citation Information

Patent Citations

  • A dehydration device for lithium-ion battery production

    CN115143741B