A device for scrapping a lithium metal battery or lithium metal material pack

Abstract

The utility model provides a device that lithium metal battery or lithium metal material package is used for scrapping, include: water collecting tank, inside bottom surface is equipped with fixed platform, the top surface of water collecting tank is open and is equipped with the top cover that can open and close, support frame, straddling setting in the top of water collecting tank, gravity blasting needle, tail portion is connected with the rope, gravity blasting needle is hung on support frame through rope, and makes gravity blasting needle fall and punctures lithium metal battery or lithium metal material that places on fixed platform through releasing rope, be equipped with first avoidance hole for avoiding gravity blasting needle on top cover. The utility model discloses through the puncture of lithium metal battery or lithium metal material and water reaction, and then unified collection recycling treatment mode of aqueous solution, realizes the safe scrapping and recycling of lithium battery. The utility model discloses small floor space, and the operation process is simple.

Description

Technical Field

[0001] This utility model belongs to the technical field of lithium metal battery scrapping equipment, specifically relating to a device for scrapping lithium metal batteries or lithium metal material packages. Background Technology

[0002] In recent years, with the rapid development of power batteries, batteries have been gradually moving towards higher energy densities. Lithium metal, with its theoretical specific capacity of 3860 mAh / g and low electrode potential (-3.04V vs. standard hydrogen electrode), is the ultimate target for next-generation anode materials in batteries. Therefore, lithium metal batteries are the main development direction for high-energy-density batteries in the future. Currently, more and more companies are researching and developing lithium metal batteries and lithium metal semi-solid-state batteries. However, the transportation and safety issues related to lithium metal battery recycling hinder the direct recycling and processing of lithium metal batteries. For enterprises and universities, the disposal of lithium metal batteries has become a major problem that urgently needs to be solved in the industry.

[0003] Patent application CN118367254A discloses a lithium metal battery waste treatment device, including a lithium metal battery combustion chamber; a fume hood above the combustion chamber to remove the smoke and dust generated during combustion; a cyclone dust collector after the hood to separate and collect particulate matter from the smoke and dust; a tube condenser after the cyclone dust collector to cool and condense the flue gas; a cartridge dust collector after the cartridge condenser to further remove particulate matter from the flue gas; an activated carbon adsorber after the cartridge dust collector to adsorb organic matter; and a silent fan after the activated carbon adsorber to discharge the treated flue gas. If the lithium metal battery waste treatment device described in this patent application were to be built, firstly, it would require a floor space of at least 6.8m × 3m × 3.8m (length × width × height); secondly, the cyclone dust collector and tube condenser in this device would be expensive; and finally, without professional guidance for construction and a mature lithium metal battery processing technology, it would require continuous exploration and would consume a significant amount of time and effort. For businesses and universities, the demand is for devices that are efficient, fast, inexpensive, and easy to operate. Utility Model Content

[0004] To address the aforementioned technical problems in the existing technology, this utility model provides a device for the disposal of lithium metal batteries or lithium metal material packages.

[0005] This utility model provides a device for the disposal of lithium metal batteries or lithium metal material packages, comprising: a water collection tank with a fixed platform on its inner bottom surface, the top surface of the water collection tank being open and having an openable and closable top cover; a support frame spanning across the top of the water collection tank; and a gravity rupture needle with a rope connected to its tail, the gravity rupture needle being suspended from the support frame by the rope, and the gravity rupture needle falling and puncturing the lithium metal battery or lithium metal material package placed on the fixed platform by releasing the rope, the top cover having a first avoidance hole for avoiding the gravity rupture needle.

[0006] Furthermore, the bottom of the water collection tank is equipped with a wastewater drain pipe, and a stop valve is installed on the wastewater drain pipe to control the water volume in the water collection tank and discharge the wastewater after battery treatment, so as to facilitate unified collection and recycling; the bottom surface of the water collection tank is equipped with several universal brake wheels to facilitate the movement of the device for scrapping lithium metal batteries or lithium metal material packs.

[0007] Furthermore, the top cover is provided with a first heat dissipation and pressure relief hole. The first heat dissipation and pressure relief hole is evenly distributed on the top cover and is used for heat dissipation and pressure relief during the processing of lithium metal batteries or lithium metal material packs.

[0008] Furthermore, one side of the top cover is connected to the top surface of the water collection tank via a hinge, and the top cover is also provided with a handle for raising and lowering the top cover.

[0009] Furthermore, a pressure relief port is provided on the top side of the water collection tank, which serves as the main pressure relief port during the processing of lithium metal batteries or lithium metal material packages.

[0010] Furthermore, the water collection tank is equipped with a fixing mechanism for fixing the lithium metal battery or lithium metal material pack to prevent the lithium metal battery or lithium metal material pack from shifting position.

[0011] Furthermore, the fixing mechanism includes at least one of the following: a limiting plate disposed on the fixing platform for limiting the lithium metal battery or lithium metal material pack from opposite sides, the fixing platform having a plurality of adjustment holes, the limiting plate being fixed by a positioning screw passing through the limiting plate and extending into the adjustment holes; a pressure plate pressing down on the lithium metal battery or lithium metal material pack placed on the fixing platform from above, for limiting the lithium metal material pack or lithium metal battery, preventing the lithium metal material pack from floating erratically on the water surface, thus preventing the gravity bursting needle from piercing, or preventing the lithium metal battery from changing position after the gravity bursting needle quickly falls into the water tank when there is too much water in the water tank, thus preventing the gravity bursting needle from piercing, the pressure plate having a second avoidance hole for avoiding the gravity bursting needle.

[0012] Furthermore, the adjustment holes include multiple sets spaced apart, and the distance between the two limiting plates is adjusted by fixing the limiting plates to different adjustment holes, which is suitable for lithium metal batteries or lithium metal material packs of different sizes; the pressure plate is provided with a second heat dissipation and pressure relief hole for heat dissipation and pressure relief during the processing of lithium metal batteries or lithium metal material packs.

[0013] Furthermore, the gravity-exploding needle includes a cylindrical portion for counterweight and a piercing needle disposed on the bottom surface of the cylindrical portion. The cylindrical portion can press down on the top cover to prevent excessive air pressure inside the water collection tank from lifting the top cover during the processing of lithium metal batteries or lithium metal material packs. The piercing needle can be a tungsten carbide needle, used to pierce the battery or lithium metal material pack to be disposed of.

[0014] Furthermore, the support frame is equipped with pulleys for suspending the rope.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) The device for treating lithium metal batteries or lithium metal material packs that is used in this utility model has a small footprint, high operational safety, and saves costs. It is suitable for both universities and enterprises.

[0016] (2) Compared to the method of directly puncturing and burning lithium metal batteries for disposal, this invention is more suitable for professional lithium metal battery manufacturers. Furthermore, the gases produced by combustion are more difficult to control and collect, and the noise is loud, posing a certain degree of danger and requiring a high level of professional experience. However, the device for disposing of lithium metal batteries or lithium metal material packages using this invention reacts the lithium metal battery with water to generate a lithium hydroxide aqueous solution. After the waste liquid is collected, it is handed over to a recycling department or institution, where lithium can be recovered using methods such as precipitation or solvent extraction. This device is easier to use, simpler and faster to operate, and saves time and effort. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the device for the disposal of lithium metal batteries or lithium metal material packages according to this utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the fixing platform in the device for scrapping lithium metal batteries or lithium metal material packages according to this utility model.

[0019] Figure label: 1. Universal brake wheel; 2. Universal brake wheel connecting block; 3. Wastewater drain pipe; 4. Water stop valve; 5. Fixing platform; 51. Adjustment hole; 52. Positioning screw; 53. Limiting plate; 6. Pressure plate; 7. Water collection tank; 8. Top cover; 9. Handle; 10. First clearance hole; 11. Pressure relief port; 12. Hinge; 13. Support frame; 14. Gravity bursting needle; 15. Rope; 16. Pulley; 17. Pulley connecting block. Detailed Implementation

[0020] Example 1 like Figures 1-2 As shown, this embodiment provides a device for the disposal of lithium metal batteries or lithium metal material packages, including a water collection tank 7, a support frame 13, and a gravity bursting needle 14.

[0021] The inner bottom surface of the water collection tank 7 is equipped with a fixed platform 5. A wastewater drain pipe 3 is located at the bottom of the water collection tank 7, and a stop valve 4 is installed on the wastewater drain pipe 3 to control the water volume in the water collection tank 7 and discharge wastewater after battery treatment, facilitating unified collection and recycling. Several universal brake wheels 1 are provided on the bottom surface of the water collection tank 7 to facilitate the movement of the disposal device for lithium metal batteries or lithium metal material packages. The universal brake wheels 1 can be standard 3-inch flat-top full-brake universal wheels for easy manufacturing and welding. The universal brake wheels 1 are connected to the bottom plate of the water collection tank 7 by welding via universal brake wheel connecting blocks 2, ensuring the sturdiness of the universal brake wheels 1. A pressure relief port 11 is provided on the top side of the water collection tank 7, serving as the main pressure relief port 11 during the processing of lithium metal batteries or lithium metal materials, reducing the internal pressure of the water collection tank 7 and preventing accidents.

[0022] The top surface of the water collection tank 7 is open and equipped with an openable and closable top cover 8. The top cover 8 has a first clearance hole 10 for avoiding the gravity-exploding needle 14. The top cover 8 also has first heat dissipation and pressure relief holes, which are evenly distributed on the top cover 8 for heat dissipation and pressure relief during the processing of lithium metal batteries or lithium metal materials. The diameter of the first heat dissipation and pressure relief holes can be set to 3 cm. One side of the top cover 8 is connected to the top surface of the water collection tank 7 via a hinge 12. The top cover 8 also has a handle 9 for raising and lowering the top cover 8.

[0023] In some feasible implementations, the water collection tank 7 is made of a steel plate with dimensions of 50cm × 50cm × 60cm (length, width, and height).

[0024] The water collection tank 7 is equipped with a fixing mechanism for securing the lithium metal battery or lithium metal material, preventing the lithium metal battery or lithium metal material from shifting in position. The fixing mechanism includes at least one of the following: (1) A limiting plate is provided on the fixed platform 5 for limiting the lithium metal battery or lithium metal material from the opposite sides. The fixed platform 5 is provided with several adjustment holes 51. The limiting plate is fixed by the positioning screws 52 passing through the limiting plate and extending into the adjustment holes 51. (2) Press the lithium metal battery or lithium metal material placed on the fixed platform 5 from above the lithium metal battery or lithium metal material. This is used to limit the lithium metal material pack or lithium metal battery and prevent the waste lithium metal material pack from floating on the water surface, which would cause the gravity explosion needle 14 to fail to pierce it. Or, if there is too much water in the water collection tank 7, the lithium metal battery will change position after the gravity explosion needle 14 falls into the water collection tank 7 quickly, which would cause the gravity explosion needle 14 to fail to pierce it. The pressure plate 6 is provided with a second avoidance hole for avoiding the gravity explosion needle 14.

[0025] Figure 1 The fixing mechanisms for devices used to secure discarded lithium metal batteries or lithium metal material packages include the two types mentioned above, which offer better fixing effects and a wider range of applications.

[0026] The fixing mechanism (1) includes multiple sets of adjustment holes 51 spaced apart. The distance between the two limiting plates is adjusted by fixing the limiting plate to different adjustment holes 51, which is suitable for lithium metal batteries or lithium metal material packs of different sizes. The fixing mechanism (2) has a second heat dissipation and pressure relief hole on the pressure plate 6, which is used for heat dissipation and pressure relief during the processing of lithium metal batteries or lithium metal material packs. The diameter of the second heat dissipation and pressure relief hole can be set to 5cm.

[0027] The support frame 13 is positioned across the water collection tank 7, and a pulley 16 for suspending the rope 15 is provided on the support frame 13. The pulley 16 can be a V-shaped pulley 16, and the pulley 16 is welded to the center of the support frame 13 through a pulley connecting block 17.

[0028] The gravity rupture needle 14 is connected to a rope 15 at its tail. The gravity rupture needle 14 is suspended from the support frame 13 by the rope 15. Releasing the rope 15 causes the gravity rupture needle 14 to fall and puncture the lithium metal battery or lithium metal material placed on the fixed platform 5. The rope 15 is at least 3.5 meters long, ensuring a safe distance between personnel and the disposal equipment during the handling of lithium metal batteries or lithium metal waste packages, thus guaranteeing personnel safety.

[0029] The gravity bursting needle 14 includes a cylindrical part for counterweight and a piercing needle located on the bottom surface of the cylindrical part. The cylindrical part can press down on the top cover 8 to prevent excessive air pressure inside the water collection tank 7 from lifting the top cover 8 during the processing of lithium metal batteries or lithium metal material packs. The piercing needle can be a tungsten carbide needle, used to pierce the batteries or waste lithium metal material packs to be disposed of.

[0030] The device for the disposal of lithium metal batteries or lithium metal material packages has a simple and clear structure, a small overall architecture, a small footprint, and is made entirely of steel, resulting in low costs.

[0031] Example 2 This embodiment uses a device for the disposal of lithium metal batteries or lithium metal material packs. The fixing mechanism in this device is a fixing mechanism (1), and the operation steps are as follows: (1) Place the gravity detonating needle on the ground and open the top cover of the water collection tank; (2) Remove the pressure plate, adjust the limiting plate to the appropriate position, insert the battery and fix the battery in place; (3) Pour an appropriate amount of water into the water collection tank and cover the top of the water collection tank; (4) Lift the gravity detonator with a rope, tighten the gravity detonator rope, and at least 3 meters away from the device for scrapping lithium metal batteries or lithium metal material packages, loosen the rope to let the gravity detonator fall vertically and puncture the lithium metal battery. Repeat the lifting and loosening of the rope several times to allow the lithium metal battery to react completely with the water. (5) Open the top cover, take out the scrapped residual debris and put it in a bag for recycling; then open the water stop valve on the wastewater drain pipe, collect the wastewater and hand it over to the recycling department for recycling.

[0032] Example 3 This embodiment uses a device for the disposal of lithium metal batteries or lithium metal material packs. The device uses a fixing mechanism (2) and the operation steps are as follows: (1) The lithium metal waste in the lithium metal battery is divided into small amounts and sealed in aluminum-plastic bags multiple times (leaving a small amount of air). (2) Place the gravity detonator on the ground and open the top cover of the water collection tank; (3) Take out the pressure plate, inject a certain amount of water into the water collection tank, lay the sealed aluminum-plastic bag (i.e. lithium metal material package) containing lithium metal waste on the water surface, press the pressure plate on top of the aluminum-plastic bag, and then cover it with the top cover. (4) Lift the gravity detonator with a rope, tighten the gravity detonator rope, and at least 3 meters away from the device for scrapping lithium metal batteries or lithium metal material packages, loosen the rope to let the gravity detonator fall vertically and puncture the sealed aluminum-plastic bag containing lithium metal waste. Repeat the lifting and loosening of the rope several times to make the waste react completely with water. (5) Open the top cover, take out the scrapped residual debris and put it in a bag for recycling; then open the water stop valve on the wastewater drain pipe, collect the wastewater and hand it over to the recycling department for recycling.

Claims

1. A device for the disposal of lithium metal batteries or lithium metal material packages, characterized in that, include: A water collection tank has a fixed platform on its inner bottom surface, and the top surface of the water collection tank is open and has an openable and closable top cover. A support frame is installed across the top of the water collection tank; A gravity-exploding needle is attached to a rope at its tail. The gravity-exploding needle is suspended from the support frame by the rope. By releasing the rope, the gravity-exploding needle falls and punctures a lithium metal battery or lithium metal material package placed on the fixed platform. The top cover is provided with a first avoidance hole for avoiding the gravity-exploding needle.

2. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 1, characterized in that, The bottom of the water collection tank is equipped with a wastewater drain pipe, and a stop valve is installed on the wastewater drain pipe; the bottom surface of the water collection tank is equipped with several omnidirectional brake wheels.

3. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 1, characterized in that, The top cover is provided with a first heat dissipation and pressure relief hole.

4. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 1, characterized in that, One side of the top cover is connected to the top surface of the water collection tank via a hinge, and the top cover is also provided with a handle.

5. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 1, characterized in that, The top side of the water collection tank is provided with a pressure relief port.

6. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 1, characterized in that, The water collection tank is equipped with a fixing mechanism for securing lithium metal batteries or lithium metal material packages.

7. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 6, characterized in that, The fixing mechanism includes at least one of the following: A limiting plate is provided on the fixed platform for limiting the lithium metal battery or lithium metal material package from opposite sides. The fixed platform is provided with a plurality of adjustment holes. The limiting plate is fixed by positioning screws passing through the limiting plate and extending into the adjustment holes. A pressure plate is pressed down from above the lithium metal battery or lithium metal material package placed on a fixed platform. The pressure plate is provided with a second avoidance hole for avoiding the gravity bursting needle.

8. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 7, characterized in that, The adjustment holes include multiple sets spaced apart, and the distance between the two limit plates is adjusted by fixing the limit plate to different adjustment holes; The pressure plate is provided with a second heat dissipation and pressure relief hole.

9. The device for disposing of lithium metal batteries or lithium metal material packages according to claim 1, characterized in that, The gravity bursting needle includes a cylindrical part for counterweight and a piercing needle disposed on the bottom surface of the cylindrical part.

10. The apparatus for disposing of lithium metal batteries or lithium metal material packages according to claim 1, characterized in that, The support frame is equipped with pulleys for suspending the rope.

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