Solid-state media discharge device

By introducing a heating system into the solid dielectric discharge device and using a blower and heat-conducting duct to increase the temperature, the problem of low discharge efficiency of solid dielectrics at low temperatures is solved, and efficient discharge and safe disassembly of the battery are achieved.

CN116417699BActive Publication Date: 2026-06-05WUHAN POWER BATTERY RECYCLING TECH CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN POWER BATTERY RECYCLING TECH CO LTD
Filing Date
2023-03-28
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

Solid dielectrics have lower discharge efficiency at low temperatures, which affects the safety and efficiency of battery dismantling and recycling.

Method used

A solid-state dielectric discharge device was designed, comprising a discharge chamber and a heating device. Hot air is introduced into the discharge chamber through a blower and a heat-conducting air duct system. The heating element is used to increase the temperature and activity of the solid discharge medium, ensuring that discharge occurs within a suitable temperature range.

Benefits of technology

It improves the ion migration rate and discharge speed of the solid medium, ensuring efficient battery discharge in low-temperature environments and enhancing the safety and efficiency of dismantling and recycling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application relates to a solid-state medium discharge device, which comprises a discharge box, a box body with a top opening, a containing space formed in the box body for containing a solid-state discharge medium and a battery to be discharged, a plurality of air inlet holes arranged on one side of the box body, and a blowing device comprising a blower, a duct and a docking box, wherein the air outlet end of the blower is connected with one end of the duct, the other end of the duct is communicated with the docking box, the docking box is attached to the side of the box body with the air inlet holes, a plurality of air outlet holes are arranged on the side of the docking box corresponding to the air inlet holes, and a heating element is arranged in the docking box and used for heating air. The discharge box is filled with the solid-state discharge medium, and the heating device is used for heating the solid-state discharge medium in the discharge box, so that the ion migration rate of the solid-state discharge medium is improved, the activity of the solid-state discharge medium is improved, and the discharge speed is accelerated.
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Description

Technical Field

[0001] This invention relates to the field of battery recycling technology, and in particular to a solid-state dielectric discharge device. Background Technology

[0002] Batteries are one of the most commonly used power supply products in various electronic devices, such as mobile phones, power banks, and new energy vehicles. When a battery reaches its designated charge-discharge cycle count, it needs to be disassembled and recycled to achieve energy recovery and reduce environmental pollution. To ensure safe disassembly and recycling, the battery generally undergoes a discharge process. Currently, there are two discharge modes: one uses salt water to discharge the battery, and the other uses a solid-state dielectric to discharge the battery.

[0003] For example, patent CN216751229U provides a waste lithium battery discharge device, which includes: a battery box that can accommodate multiple waste lithium batteries, a discharge box containing solid conductive medium particles, and a probe assembly. The battery box is provided with multiple spaced partitions, and slots for placing waste lithium batteries are formed between the partitions. When the battery box is discharged, it is aligned with the discharge box. The probe assembly is located between the battery box and the discharge box, so that the probe assembly is connected to the battery terminals and solid conductive medium particles of each waste lithium battery to form a discharge circuit.

[0004] However, it has the following problems: solid media are greatly affected by temperature, and its discharge efficiency is low at lower temperatures. Summary of the Invention

[0005] In view of this, the present invention provides a solid dielectric discharge device that can maintain a suitable temperature range to ensure discharge efficiency.

[0006] To achieve the above objectives, the technical solution of the present invention is to provide a solid dielectric discharge device, comprising: a discharge box, including a box body with an open top, wherein a space for holding a solid discharge dielectric and a battery to be discharged is formed inside the box body, and a plurality of air inlets are provided on one side of the box body.

[0007] The blower device includes a blower, a duct, and a docking box. The air outlet of the blower is connected to one end of the duct, and the other end of the duct is connected to the docking box. The docking box is fitted to the side of the box body where the air inlet is located. Several air outlets are located on the side of the docking box that is connected to the box body, corresponding to the air inlet. A heating element is provided inside the docking box for heating the air.

[0008] Furthermore, the discharge box also includes a top cover, which is disposed on the top of the box body and is detachably connected to the box body.

[0009] Furthermore, the discharge box also includes several heat-conducting air ducts, and several air outlets are provided on the side of the box body away from the blower. The several heat-conducting air ducts are arranged in parallel along the direction perpendicular to the air inlet. Connecting pipes are provided between the heat-conducting air ducts near the air inlet and the air inlet, between adjacent heat-conducting air ducts, and between the heat-conducting air ducts near the air outlet and the air outlet.

[0010] Furthermore, the top cover includes a cover body, several partitions, and conductive probes. The cover body is detachably connected to the top of the box body. The cover body has through holes, and the partitions and conductive probes are spaced apart in the through holes.

[0011] Furthermore, two opposing slides are provided on the inner wall of the through hole, and sliding protrusions are formed on both sides of the partition plate, which are respectively embedded in the two slides, allowing the partition plate to slide along the slides.

[0012] Furthermore, the conductive probe extends on the side near the inner wall of the through hole to form a slider embedded in the slide, and the conductive probe can slide along the slide.

[0013] Furthermore, the heating element is a heating resistor, which is fixed inside the docking box, and its two ends are electrically connected to an external power source.

[0014] Furthermore, the heating element is a water pipe, which is fixed inside the docking box and connected to an external hot water source.

[0015] Furthermore, the blower also includes an airflow valve, which is fixed on the duct and can monitor the airflow rate inside the duct.

[0016] Compared with the prior art, the solid-state dielectric discharge device provided by the present invention has the following advantages:

[0017] The present invention proposes a solid dielectric discharge device, which includes a discharge box and a heating device. The discharge box is filled with a solid discharge dielectric, and the heating device is used to heat the solid discharge dielectric in the discharge box to increase the ion migration rate of the solid discharge dielectric, thereby increasing the activity of the solid discharge dielectric and accelerating the discharge speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a solid dielectric discharge device provided by the present invention;

[0019] Figure 2 This invention provides an internal schematic diagram of a solid-state dielectric discharge device.

[0020] Figure 3 for Figure 1 Schematic diagram of cross-section of the intermediate discharge chamber;

[0021] In the diagram: 1-Discharge box, 11-Box body, 111-Air inlet, 112-Air outlet, 12-Top cover, 121-Cover, 122-Baffle, 123-Conductive probe, 124-Through hole, 13-Heat-conducting air duct, 2-Blower, 21-Blower, 22-Conduit, 23-Docking box, 24-Airflow valve. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0023] Please see Figure 1 , Figure 2 The first embodiment of the present invention provides a solid-state dielectric discharge device, comprising: a discharge chamber 1 and a blower 2, wherein the air outlet of the blower 2 is connected to the discharge chamber 1. The discharge chamber 1 forms a accommodating space for holding a solid-state discharge medium, and the blower 2 is used to blow hot air into the discharge chamber 1. The solid-state discharge medium in the discharge chamber 1 can contact the battery to be discharged placed in the discharge chamber 1 to perform discharge; the blower 2 blowing hot air into the discharge chamber 1 can increase the temperature inside the discharge chamber 1, enhance the activity of the solid-state discharge medium, and accelerate the discharge speed.

[0024] Specifically, the discharge box 1 includes a box body 11 with a top opening and a top cover 12. The box body 11 forms a accommodating space for holding a solid discharge medium. The top cover 12 covers the top of the box body 11 and is detachably connected to the box body 11. This facilitates the replacement of the solid discharge medium inside the box body 11.

[0025] The solid discharge medium is a charged colloid that can assist the battery in discharging; for example, ferric hydroxide colloid or silica colloid.

[0026] Furthermore, one side of the housing body 11 is connected to the air outlet of the blower 2, and the air outlet of the blower 2 blows out hot air to increase the temperature inside the housing body 11, thereby increasing the activity of the solid discharge medium and accelerating the discharge speed.

[0027] For further details, please refer to Figure 1 , Figure 2 as well as Figure 3The discharge box 1 further includes several heat-conducting air ducts 13. Several air inlets 111 are provided on the side of the box body 11 that connects to the air outlet of the blower 2. Several air outlets 112 are provided on the side of the box body 11 away from the blower. The heat-conducting air ducts 13 are arranged parallel to each other along a direction perpendicular to the air inlet. Connecting pipes 14 connect the heat-conducting air ducts 13 near the air inlets 111 to the air inlets 111, between adjacent heat-conducting air ducts 13, and between the heat-conducting air ducts 13 near the air outlets 112 and the air outlets 112. The hot air discharged from the blower 2 enters the heat-conducting air ducts 13 through the air inlets 111 and passes through each heat-conducting air duct 13 in turn. Since heat-conducting air ducts 13 are installed at various locations within the housing body 11, heat can be transferred to all locations within the housing body 11. Hot air heats the heat-conducting air ducts 13, and the heat is ultimately transferred to the solid-state discharge medium in contact with the heat-conducting air ducts 13, enhancing the activity of the solid-state discharge medium and accelerating the discharge rate. The hot air is finally discharged from the air outlet 112. The purpose of this arrangement is that the heat-conducting air ducts 13 conduct hot air to all locations within the housing body 11, ensuring uniform heating of the solid-state discharge medium and improving the discharge rate.

[0028] Furthermore, the upper cover 12 includes a cover body 121, several partitions 122, and conductive probes 123. The cover body 121 is detachably connected to the top of the housing body 11. A through hole 124 is provided on the cover body 121, and the partitions 122 and conductive probes 123 are spaced apart within the through hole 124. A space is formed between the partitions 122 for inserting the batteries to be discharged. The partitions 122 can separate the batteries to be discharged, preventing them from contacting each other and causing short circuits or other safety hazards.

[0029] Furthermore, two opposing slide tracks are provided on the inner wall of the through hole 124, and sliding protrusions are formed on both sides of the partition 122, which are respectively embedded in the two slide tracks, allowing the partition 122 to slide along the slide tracks. This allows the position of the partition 122 and the distance between the two partitions 122 to be adjusted to accommodate batteries of different sizes.

[0030] Furthermore, the conductive probe 123 extends to form a slider embedded in the slide rail on the side near the inner wall of the through hole 124, allowing the conductive probe 123 to slide along the slide rail. This achieves the effect of adapting to different positive and negative electrode positions for various models.

[0031] Specifically, the blower device 2 includes a blower 21, a duct 22, and a docking box 23. The air outlet of the blower 21 is connected to one end of the duct 22, and the other end of the duct 22 is connected to the docking box 23. The docking box 23 is fitted to the side of the housing body 11 where the air inlet 111 is located. Several air outlets are provided on the side of the docking box 23 that is connected to the housing body 11, corresponding to the air inlet 111. A heating element is provided inside the docking box 23, and the heating element is used to heat the air.

[0032] The heating element's function is to heat air; that is, the heating element only needs to perform the function of heating air, and its specific structure is not limited. In this embodiment, the heating element is a heating resistor, which is fixed inside the docking box 23, and its two ends are electrically connected to an external power source. When energized, the heating resistor generates heat to heat the air. In some other feasible embodiments, the heating element is a water pipe, which is fixed inside the docking box 23 and connected to an external hot water source. When hot water is introduced into the water pipe, it heats the air.

[0033] Furthermore, the blower device 2 also includes an airflow valve 24, which is fixed on the duct 22 and can monitor the airflow rate in the duct 22.

[0034] The advantages of this invention are:

[0035] The present invention proposes a solid dielectric discharge device, which includes a discharge box and a heating device. The discharge box is filled with a solid discharge medium, and the sealing requirements of the discharge box are low. The heating device is used to heat the solid discharge medium in the discharge box, thereby increasing the ion migration rate of the solid discharge medium, thereby increasing the activity of the solid discharge medium and accelerating the discharge speed.

[0036] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the present invention.

Claims

1. A solid-state dielectric discharge device, characterized in that, include: The discharge box includes a box body with an open top. The box body forms a space for holding a solid discharge medium and a battery to be discharged. Several air inlets are provided on one side of the box body. The solid discharge medium is a charged colloid, which is either iron hydroxide colloid or silica colloid. The device includes a blower, a duct, and a docking box. The air outlet of the blower is connected to one end of the duct, and the other end of the duct is connected to the docking box. The docking box is fitted to the side of the box body where the air inlet is located. Several air outlets are located on the side of the docking box that is connected to the box body, corresponding to the air inlet. A heating element is provided inside the docking box for heating the air.

2. The solid-state dielectric discharge device as described in claim 1, characterized in that: The discharge box also includes a top cover, which is located on the top of the box body and is detachably connected to the box body.

3. The solid-state dielectric discharge device as described in claim 1, characterized in that: The discharge box also includes several heat-conducting air ducts. Several air outlets are opened on the side of the box body away from the blower. Several heat-conducting air ducts are arranged in parallel along the direction perpendicular to the air inlet. Connecting pipes are connected between the heat-conducting air ducts near the air inlet and the air inlet, between adjacent heat-conducting air ducts, and between the heat-conducting air ducts near the air outlet and the air outlet.

4. The solid-state dielectric discharge device as described in claim 2, characterized in that: The top cover includes a cover body, several partitions and conductive probes. The cover body is detachably connected to the top of the box body. The cover body has through holes, and the partitions and conductive probes are spaced apart in the through holes.

5. The solid-state dielectric discharge device as described in claim 4, characterized in that: The inner wall of the through hole has two opposing slides, and the two sides of the partition have sliding protrusions that are respectively embedded in the two slides, so that the partition can slide along the slides.

6. The solid-state dielectric discharge device as described in claim 5, characterized in that: The conductive probe extends on the side near the inner wall of the through hole to form a slider embedded in the slide, and the conductive probe can slide along the slide.

7. The solid-state dielectric discharge device as described in claim 1, characterized in that: The heating element is a heating resistor, which is fixed inside the docking box and its two ends are electrically connected to an external power source.

8. The solid-state dielectric discharge device as described in claim 1, characterized in that: The heating element is a water pipe, which is fixed inside the docking box and connected to an external hot water source.

9. The solid-state dielectric discharge device as described in claim 1, characterized in that: The blower also includes an airflow valve, which is fixed on the duct and can monitor the airflow rate inside the duct.