WO2023163336A1 - Thermal treatment system for eco-friendly recycling of waste batteries - Google Patents

Abstract

The present invention relates to a thermal treatment system for eco-friendly recycling of waste batteries, and provides a thermal treatment system comprising: a thermal treatment unit (110) provided in the shape of a chamber in which a heating means (111) is loaded, so that crushed medium- and large-sized waste batteries that have been discharged and crushed are put therein and thermally treated; a first thermal treatment control unit (120), which is coupled to one side of the thermal treatment unit (110) so as to form a transfer air current through an inert carrier gas in the chamber during a thermal treatment process, so that ignition inside the chamber is suppressed and, simultaneously, a vaporized electrolyte and organic substances pyrolyzed in a binder are liquefied by means of heat exchange; a second thermal treatment control unit (130) coupled to one side of the first thermal treatment control unit (120) so as to cool, through water cooling or air cooling, the temperature rising during heat exchange; and an organic impurity recovery unit (150) coupled to one side of the first thermal treatment control unit (120) so as to recover and store liquefied organic impurities, and thus the present invention increases a precious metal recovery rate, and separately recovers organic impurities so as to perform an eco-friendly and efficient thermal treatment process.

Description

Heat treatment system for eco-friendly recycling of waste batteries

The present invention relates to a heat treatment system for eco-friendly recycling of waste batteries, and more particularly, to recover complex compounds containing valuable metals from medium and large-sized waste batteries used in electric vehicles or energy storage systems through heat treatment to obtain electrolytes and organic matter. It relates to a heat treatment system that configures a system capable of separately recovering impurities so that an environmentally friendly, safer, and more efficient heat treatment process than the prior art can be achieved.

In general, a secondary battery is a battery capable of repeating charge and discharge, and includes a lead acid battery, a nickel cadmium battery, a nickel hydride battery, a lithium ion battery, and the like. Since lead-acid batteries and nickel-cadmium batteries contain harmful heavy metals, lithium-ion batteries occupy most of the recent secondary battery market.

A lithium ion battery is a secondary battery that is widely applied to various IT devices due to its high energy density, and generates electricity according to the electric flow of lithium ions through an electrolyte between an anode and a cathode. A battery cell, the smallest unit of a secondary battery, is composed of a cathode material, a cathode material, an electrolyte, and a separator in a container. During charging, lithium ions pass through the separator from the anode to the cathode, and during discharging, they move from the anode to the anode. It is done.

For the cathode material of the secondary battery, cathode active materials such as nickel, manganese, cobalt, and aluminum are used. As for the anode material, graphite and carbon, which are anode active materials, are used. The electrolyte is composed of a lithium salt composed of lithium, phosphoric acid, and fluorine, and an organic solvent.

Meanwhile, due to the recent expansion of the electric vehicle market and the increase in the use of energy storage systems (ESS), the amount of secondary batteries discarded after use is expected to increase exponentially, and concerns about waste battery disposal methods are growing.

As described above, since the secondary battery contains valuable metals such as lithium, nickel, manganese, and cobalt as an active material, development of recycling technology for recovering mineral resources from waste batteries is in progress.

As an example of a known technology, Korea Patent Registration No. 10 - 2191858 discloses a salt water tank in which waste lithium ion batteries are precipitated and discharged, and a post-process of the salt water tank is performed, but the discharged waste lithium ion battery is cut into a predetermined size. A cutting machine for cutting, a drying chamber in which a drying space is formed inside to dry the cut waste lithium ion battery cut to a predetermined size under a predetermined drying process condition, and a common area disposed in the center of the drying chamber A shaft, a plurality of drying hot plates disposed on the common shaft along the length of the common shaft, a scraper provided on the drying hot plate and moving the cut waste lithium ion battery placed on the drying hot plate, and a drying hot plate A dryer having a discharge part formed on one side, a grinder that performs the post-process of the dryer and pulverizes the dried cut waste lithium ion battery, and selects raw materials such as cobalt, nickel, and manganese, which are active materials, from the powder pulverized by the grinder. It constitutes a raw material recovery system of a waste lithium ion battery including a sorter for separating under.

As another example, Korean Patent Registration No. 10 - 0637680 discloses a discharger for discharging the recovered waste lithium secondary battery, crushing the discharged waste lithium secondary battery to form one or more grooves in the metal case of the secondary battery cell, or discharging the secondary battery cell. A crusher that crushes into pieces with a size of 1 cm or more, a firing furnace that burns the shredded secondary battery cells to form a lump of metal, a crusher that crushes the fired secondary battery cells with a cutter, sorts and An apparatus for recovering cobalt powder from a waste lithium secondary battery including a classifier for obtaining powdery cobalt by classification is constituted.

As another example, Korean Patent Registration No. 10 - 2021 - 0077962 discloses the step of discharging the battery cell and separating it into a positive electrode plate, a separator and a negative electrode plate, obtaining a positive electrode plate from the separated battery cell, and A method for recovering valuable metals from a battery cell comprising the steps of cutting and pulverizing the separated positive electrode plate through a ball mill, and heat-treating the pulverized positive electrode plate at a temperature of 400 to 600 ° C for 30 minutes to 1 hour and a half. do.

As described above, the heat treatment system applied to the recycling of medium and large-sized waste batteries used in electric vehicles or energy storage systems according to the prior art removes impurities such as electrolyte and binders present in waste batteries by temperature section through a drying or heat treatment process. It consists only of the function of separating the active material.

However, such a conventional heat treatment system generates a large amount of harmful gases from impurities such as binders in a high-temperature environment, and the size of a separate air pollution reduction facility through secondary combustion is large. It is happening.

In addition, since the heat treatment system according to the prior art performs a heat treatment process over a long period of time in a certain temperature range, it is difficult to effectively remove organic substances contained throughout the inside and outside of the shredded waste battery, and ignition of active materials such as carbon black in a high temperature environment There is a problem of significantly reducing the recovery rate of valuable metals by causing

Therefore, in order to recycle medium and large-sized waste batteries, heat treatment is performed for each temperature range to remove impurities such as electrolyte and binder, as well as to recover them separately to recover organic substances thermally decomposed from electrolyte and binder, and to reduce environmental load. It is intended to provide a heat treatment system for recycling.

In the present invention, as invented to solve the problems of the prior art as described above,

A heat treatment unit 110 provided in the shape of a chamber in which a heating means 111 is mounted to insert and heat-treat the medium-large-sized waste battery shredded material that has been discharged and shredded;

Coupled to one side of the heat treatment unit 110 to create a transfer airflow through an inert carrier gas in the chamber during the heat treatment process to suppress ignition inside the chamber and at the same time liquefy the organic material thermally decomposed from the vaporized electrolyte and binder by heat exchange A first heat treatment control unit 120 provided with;

A second heat treatment control unit 130 coupled to one side of the first heat treatment control unit 120 and provided to cool the temperature rising in the heat exchange process by water cooling or air cooling;

By including an organic impurity recovery unit 150 coupled to one side of the first heat treatment control unit 120 to recover and store liquefied organic impurities, the recovery rate of valuable metals is increased and organic impurities are separately recovered to be environmentally friendly. It is possible to achieve the purpose of providing a heat treatment system that performs an efficient and efficient heat treatment process.

The present invention provides a heat treatment system applied to a series of recycling processes in which complex compounds containing valuable metals are produced from medium and large-sized waste batteries used in electric vehicles or energy storage systems and organic impurities are separately recovered.

Different from the conventional heat treatment system, the present invention has an advantage of significantly improving the recovery rate of valuable metals by collecting or removing impurities for each temperature section in the heat treatment process.

In particular, the present invention has the advantage of significantly reducing carbon emissions and minimizing environmental load compared to the prior art by separately recovering organic impurities by collecting gas generated for each heat treatment temperature section in a liquid form.

Therefore, the present invention has the effect of providing a heat treatment system that can meet environmental protection, safety, and efficiency by applying to the recycling process of waste batteries according to the prospect of expanding demand for electric vehicles and ESS.

1 is a block diagram of a heat treatment system for eco-friendly recycling of waste batteries according to the present invention.

Figure 2 is a schematic front, plan, side view of a heat treatment system for eco-friendly recycling of waste batteries according to the present invention.

Figure 3 is a schematic diagram of the heat treatment process by the heat treatment system for eco-friendly recycling of waste batteries according to the present invention.

4 is a table of impurities captured by cooling temperature according to an experimental example of the present invention.

The heat treatment system for eco-friendly recycling of waste batteries to which the technology of the present invention is applied differs from the prior art in the configuration of the heat treatment system applied to the recycling process of medium and large-sized waste batteries used in electric vehicles or energy storage systems, making it more environmentally friendly, safe and efficient. Note that it relates to a heat treatment system technology that allows a heat treatment process to be performed.

The battery pack of the lithium ion secondary battery used in an electric vehicle or ESS is separated into a battery module and a battery cell.

The waste battery constitutes a module and a pack based on a battery cell composed of a cathode material, a cathode material, an electrolyte, and a separator in a rectangular aluminum container. In the recycling process of waste batteries, a series of processes including discharging and crushing, pulverization and classification processes are performed to obtain active materials such as nickel, cobalt, and manganese included in battery cells.

At this time, in the shredded waste battery, there is an electrolyte solution, which is an essential component of the battery, and an organic binder for coating the positive and negative electrode materials on the electrode plate. A heat treatment process for the shredded battery is required.

The prior art heat treatment system burns waste battery shreds at a certain temperature to obtain valuable materials, and the gas generated in the heat treatment process is discharged through a separate gas treatment facility, so there is a problem such as environmental load. The present invention provides a heat treatment system that performs a heat treatment process differentiated from the prior art.

For this purpose, the heat treatment system for eco-friendly recycling of waste batteries of the present invention includes a heat treatment unit 110 accommodating shredded waste batteries, a first heat treatment control unit 120, a second heat treatment control unit 130, and a third heat treatment It is configured to include a control unit 140 and an organic impurity recovery unit 150, and is specifically described below.

The heat treatment unit 110 is provided in the shape of a chamber in which a heating means 111 is mounted, and is provided to input and heat-treat the shredded medium and large-sized waste batteries that have been discharged and shredded.

The heat treatment unit 110 performs heat treatment at a low or high temperature to efficiently recover valuable metals such as nickel, cobalt, and manganese from shredded waste batteries in which impurities such as electrolyte, moisture, and organic binders are mixed together with separators and electrode plates. It is a composition for removing impurities.

The heat treatment unit 110 includes a chamber accommodating shredded waste batteries and a heating means 111, a first heat treatment module 112 for low-temperature heat treatment, and a second heat treatment module 113 for high-temperature heat treatment.

An air circulation line is provided outside the chamber of the heat treatment unit 110 to blow cold air and discharge hot air so that natural circulation is achieved. In addition, the first transfer line 121 of the first heat treatment control unit 120, which will be described later, and the carrier gas supply line 141 of the third heat treatment control unit 140 are connected and provided.

The first heat treatment module 112 and the second heat treatment module 113 are configured to more efficiently remove organic substances, which are an impediment to the recovery rate of valuable metals, through section-by-section firing at low and high temperatures, respectively.

The first heat treatment module 112 is provided to remove moisture and electrolyte from the surface of the crushed material by the heating means 111 .

The first heat treatment module 112 is provided to volatilize and remove moisture and electrolyte by heat-treating the input crushed materials for 0.1 to 5 hours at a low temperature of 100 to 300 ° C. The gas generated in the heat treatment process by the first heat treatment module 112 is configured to be transferred to the first heat treatment control unit 120 via the first transfer line 121 .

The second heat treatment module 113 is provided to remove the organic binder from the crushed material by the heating means 111 and to separate the current collector and the active material.

The second heat treatment module 113 is configured to recover an active material by heat treatment at a high temperature of 400 to 700° C. for 0.1 to 5 hours to separate organic impurities from the crushed material. The gas generated in the heat treatment process by the second heat treatment module 113 is configured to be transferred to the first heat treatment control unit 120 via the first transfer line 121 .

The heat treatment unit 110 is configured to apply the first heat treatment module 112 or to sequentially apply the first heat treatment module 112 and the second heat treatment module 113, and the first heat treatment module ( 112) and the first heat treatment control unit 120 to be described later according to the applied state of the second heat treatment module 113 are provided in plurality.

The first heat treatment control unit 120 is coupled to one side of the heat treatment unit 110 to receive the gas generated in the chamber during the heat treatment process and liquefy it through heat exchange.

The first heat treatment control unit 120 collects gas generated as moisture and electrolyte volatilize during the low-temperature heat treatment process by the first heat treatment module 112 and recovers it in liquid form while passing through a cooling section, In the high-temperature heat treatment process by the heat treatment module 113, gas generated as the organic binder is thermally decomposed is collected and recovered in liquid form through a cooling section to increase the recovery efficiency of impurities and reduce the amount of exhaust gas finally generated. make up

The first heat treatment control unit 120 includes a chamber for heat exchange, and a first transfer line 121, a second transfer line 122, and a third transfer line 123 coupled to one side of the chamber.

As described above, the first heat treatment control unit 120 combines a plurality of heat treatment units at one side of the heat treatment unit 110 to form the first heat treatment module 112 and the second heat treatment module 113 of the heat treatment unit 110. It is provided so that heat exchange is performed corresponding to each heat treatment temperature by.

The first transfer line 121 is connected to the heat treatment unit 110 to receive gas.

The first transfer line 121 connects the plurality of chambers of the heat treatment unit 110 and the first heat treatment control unit 120, and has a predetermined bypass valve on one section so that the first heat treatment module 112 And according to the low temperature or high temperature heat treatment condition by the second heat treatment module 113, a connection state is formed with the chamber to which the gas is to be transferred.

The second transfer line 122 is connected to a second heat treatment control unit 130 to be described later and is provided to receive water-cooled or air-cooled cooling fluid.

The second transfer line 122 connects the plurality of chambers of the second heat treatment control unit 130 and the first heat treatment control unit 120, respectively, and receives the cooling fluid from the second heat treatment control unit 130 at regular intervals. configured to maintain temperature.

The third transfer line 123 is connected to an organic impurity recovery unit 150 to be described later to discharge liquefied organic impurities.

The third transfer line 123 connects the receiver tank 151 of the organic impurity recovery unit 150 and the plurality of chambers of the first heat treatment control unit 120 one-to-one, so that the first heat treatment control unit 120 It is provided to discharge the liquefied electrolyte and organic materials to the organic impurities recovery unit 150.

The second heat treatment control unit 130 is coupled to one side of the first heat treatment control unit 120 to cool the temperature rising in the heat exchange process by water cooling or air cooling.

The second heat treatment control unit 130 is configured to supply a cooling fluid to continuously cool the internal temperature that rises in the heat exchange process by the first heat treatment control unit 120, and includes a fluid tank 131, A cooling chiller 132 is included.

The fluid tank 131 is connected to the first heat treatment control unit 120 and stores and supplies cooling fluid at all times.

The fluid tank 131 is connected to the second transfer line 122 coupled to the first heat treatment control unit 120 . The cooling fluid stored in the fluid tank 131 is applied according to the air-cooled or water-cooled heat exchange method of the first heat treatment control unit 120, and in the case of the water-cooled type, distilled water or a mixture of distilled water and antifreeze may be used.

The cooling chiller 132 cools the fluid tank 131 to a certain temperature to improve liquefaction efficiency by cooling the cooling fluid to set the internal temperature of the first heat treatment unit 110 in the range of 5 to 50 ° C. It is configured to increase the recovery rate of organic impurities.

Meanwhile, a carrier gas supply line 141 is coupled to one side of the heat treatment unit 110 and a third heat treatment control unit 140 is connected.

The third heat treatment control unit 140 fills the chamber with an inert gas containing N ₂ or Ar and continuously supplies it in a fixed amount through a regulator to form an airflow capable of moving organic impurities thermally decomposed from the vaporized electrolyte or binder. It is provided to increase efficiency through cooling and collection and to reduce carbon emission by minimizing the amount of combustion of carbon black and graphite, which are negative electrode active materials, while controlling the ignition of the to-be-heated object in the chamber.

The third heat treatment control unit 140 discharges an inert gas into the chamber to serve as a carrier gas for recovering moisture and electrolyte to the first heat treatment control unit 120 during the low-temperature heat treatment process by the first heat treatment module 112. Equipped to fill in In addition, the third heat treatment control unit 140 serves as a carrier gas for recovering the organic material thermally decomposed from the binder in the high-temperature heat treatment process by the second heat treatment module 113 to the first heat treatment control unit 120. An inert gas is provided to fill the chamber.

The inert gas supplied by the third heat treatment control unit 140 controls ignition inside the chamber of the heat treatment unit 110 while minimizing the amount of combustion of carbon black and graphite, which are negative electrode active materials, to reduce carbon emission.

The organic impurities recovery unit 150 is coupled to one side of the first heat treatment control unit 120 to recover and store liquefied organic impurities.

The organic impurity recovery unit 150 recovers the electrolyte solution and the organic binder liquefied and discharged through the heat exchange process by the first heat treatment control unit 120, efficiently recovers impurities generated during the heat treatment process compared to the prior art, and finally It is configured to significantly reduce the amount of exhaust gas generated by minimizing the environmental load, and includes a receiver tank 151 and a scrubber 152.

The receiver tank 151 is connected one to one with the plurality of chambers of the first heat treatment control unit 120 by a third transfer line 123 to recover liquefied electrolyte and organic materials.

The receiver tank 151 is located below the first heat treatment control unit 120, and the third transfer line 123 is inclined downward to form a liquid heavily liquefied by the first heat treatment control unit 120. is configured to be transferred to the receiver tank 151 along the slope.

The scrubber 152 is connected to the receiver tank 151 to store recovered organic impurities and is provided for secondary combustion and collection of unrecovered off-gas. Compared to the prior art, the present invention primarily cools, collects and recovers the gas generated in the heat treatment process by the first heat treatment control unit 120, thereby significantly reducing the amount of gas and reducing the load of the treatment process by the scrubber 152. .

A schematic view of the heat treatment process by the heat treatment system for eco-friendly recycling of waste batteries to which the technology of the present invention is applied is as follows. Since the following description describes the present invention with respect to preferred embodiments, the present invention is not limited by the following examples, and it is natural that various modifications may be provided without departing from the scope of the present invention. .

The present invention constitutes a heat treatment system that performs a heat treatment process applied to eco-friendly recycling of waste batteries, in which complex compounds containing valuable metals are produced using medium and large-sized waste batteries used in electric vehicles or energy storage systems, and organic impurities are separately recovered. It consists of a heat treatment unit 110, a first heat treatment control unit 120, a second heat treatment control unit 130, a third heat treatment control unit 140, and an organic impurity recovery unit 150.

First, the waste battery shredded material obtained through the discharging and shredding process is put into the chamber of the heat treatment unit 110 and heat treated by the heating means 111, but among the first heat treatment module 112 or the second heat treatment module 113 A low-temperature or high-temperature heat treatment step is performed using one or a plurality of them.

Prior to heat treatment, oxygen remaining in the chamber is removed using a vacuum pump to prevent ignition and to ensure that the inert gas is smoothly introduced.

The third heat treatment control unit 140 connected from one side of the heat treatment unit 110 through the carrier gas supply line 141 fills the chamber with an inert gas and controls the gas generated during the heat treatment process by the inert gas acting as a carrier. It is transferred to 1st heat treatment control unit 120. The inert gas reduces carbon emission by minimizing the amount of combustion of carbon black and graphite, which are negative electrode active materials, while controlling ignition inside the heat treatment unit 110 .

The first heat treatment module 112 performs heat treatment at a low temperature of 100 to 300 ° C. for 0.1 to 5 hours to volatilize and separate moisture and electrolyte from the surface of the crushed objects.

The second heat treatment module 113 performs heat treatment at a high temperature of 400 to 700° C. for 0.1 to 5 hours to separate organic impurities from the crushed material and recover valuable metals.

The gas is transferred from one side of the heat treatment unit 110 to the first heat treatment control unit 120 connected through the first transfer line 121, collected, and liquefied by heat exchange.

At the same time, the second heat treatment control unit 130 connected from one side of the first heat treatment control unit 120 through the second transfer line 122 receives cooling fluid from the fluid tank 131 cooled by the cooling chiller 132. is continuously supplied to set the temperature of the first heat treatment control unit 120 in the range of 5 to 50° C., thereby liquefying the gas.

The organic impurities liquefied in the first heat treatment control unit 120 are discharged to the organic impurities recovery unit 150 and recovered. The organic impurity recovery unit 150 connected from one side of the first heat treatment control unit 120 through the third transfer line 123 recovers the liquid electrolyte and organic binder in the receiver tank 151 to proceed with the heat treatment process. The recovery efficiency of organic impurities generated in the process is increased and the amount of exhaust gas finally generated is reduced to reduce the environmental treatment load by the scrubber 152.

Hereinafter, an experimental example using a heat treatment system for eco-friendly recycling of waste batteries to which the technology of the present invention having the configuration described above is applied will be configured and the effect will be closely identified.

<Experiment example>

A heat treatment process was carried out using a series of components included in the heat treatment system of the present invention, and the amount of collected matter collected in the organic impurity recovery unit 150 was measured.

In the heat treatment system according to the prior art, since there is no configuration for separately recovering organic impurities generated in the course of the heat treatment process as in the present invention, the entire amount is treated with exhaust gas, resulting in a huge environmental load due to carbon emission.

4, low-temperature heat treatment by the first heat treatment module 112 and high-temperature heat treatment by the second heat treatment module 113 according to the present invention are performed using 100 kg of crushed material, and gas is supplied to the first heat treatment control unit 120. In the process of collecting, the amount of each liquefied collected matter is measured and displayed for each cooling temperature of the first heat treatment control unit 120 supplied with the cooling fluid by the second heat treatment control unit 130.

As described above, the heat treatment system for eco-friendly recycling of waste batteries according to the present invention is a series of recycling processes in which complex compounds containing valuable metals are produced from medium and large-sized waste batteries used in electric vehicles or energy storage systems, and organic impurities are separately recovered. Provides an applied heat treatment system.

Different from conventional heat treatment systems, the present invention has the advantage of significantly improving the recovery rate of valuable metals by efficiently recovering valuable metals by collecting or removing impurities for each temperature section in the heat treatment process.

In particular, the present invention has the advantage of significantly reducing carbon emissions and minimizing environmental load compared to the prior art by separately recovering organic impurities by collecting gas generated for each heat treatment temperature section in a liquid form.

The heat treatment system for eco-friendly recycling of waste batteries of the present invention has various effects such as improving safety and efficiency in preparation for future expansion of demand for electric vehicles and ESS, as well as solving technical problems related to environmental problems. The availability is expected to be very high.

Claims (7)

A heat treatment unit 110 provided in the shape of a chamber in which a heating means 111 is mounted to insert and heat-treat the medium-large-sized waste battery shredded material that has been discharged and shredded; Coupled to one side of the heat treatment unit 110 to create a transfer airflow through an inert carrier gas in the chamber during the heat treatment process to suppress ignition inside the chamber and at the same time liquefy the organic material thermally decomposed from the vaporized electrolyte and binder by heat exchange A first heat treatment control unit 120 provided with; A second heat treatment control unit 130 coupled to one side of the first heat treatment control unit 120 and provided to cool the temperature rising in the heat exchange process by water cooling or air cooling; Heat treatment system for eco-friendly recycling of waste batteries, characterized in that it comprises an organic impurity recovery unit 150 coupled to one side of the first heat treatment control unit 120 to recover and store liquefied organic impurities. According to claim 1, The heat treatment unit 110, A first heat treatment module 112 provided to remove moisture and electrolyte from the surface of the crushed material by the heating means 111; A second heat treatment module 113 is provided to remove the organic binder from the crushed material by the heating means 111 and separate the current collector and the active material, and the first heat treatment module 112 is applied or the first heat treatment module 112 is applied. A heat treatment system for eco-friendly recycling of waste batteries, characterized in that the heat treatment module 112 and the second heat treatment module 113 are configured to be sequentially applicable. According to claim 2, The first heat treatment module 112 is provided to heat-treat the crushed materials introduced for 0.1 to 5 hours at a low temperature of 100 to 300 ° C, The second heat treatment module 113 is provided to heat-treat the crushed materials introduced for 0.1 to 5 hours at a high temperature of 400 to 700 ° C., separating organic impurities and recovering active materials. Waste battery eco-friendly recycling, characterized in that Heat treatment system for According to claim 1, A carrier gas supply line 141 is coupled to one side of the heat treatment unit 110, and an inert gas containing N ₂ or Ar is continuously supplied in a fixed amount through a regulator to fill the chamber, so that the vaporized electrolyte or binder is thermally decomposed. A third heat treatment provided to reduce carbon emissions by minimizing the amount of combustion of carbon black and graphite, which are negative electrode active materials, while increasing efficiency through cooling and collection by forming an airflow capable of moving organic impurities, while controlling the ignition of the to-be-heated material in the chamber. Heat treatment system for eco-friendly recycling of waste batteries, characterized in that configured by connecting the control unit (140). According to claim 1, The first heat treatment control unit 120, By combining a plurality of heat treatment units at one side of the heat treatment unit 110, heat exchange is performed corresponding to the respective heat treatment temperatures of the first heat treatment module 112 and the second heat treatment module 113 of the heat treatment unit 110, , In the first heat treatment control unit 120, A first transfer line 121 connected to the heat treatment unit 110 to receive gas; A second transfer line 122 connected to the second heat treatment control unit 130 to receive water-cooled or air-cooled cooling fluid; A heat treatment system for eco-friendly recycling of waste batteries, comprising a third transfer line 123 connected to the organic impurities recovery unit 150 to discharge liquefied organic impurities. According to claim 1, The second heat treatment control unit 130, A fluid tank 131 connected to the first heat treatment control unit 120 and provided to store and supply cooling fluid at all times, and a cooling chiller 132 to cool the fluid tank 131 to a certain temperature, Heat treatment system for eco-friendly recycling of waste batteries, characterized in that configured to increase the recovery rate of organic impurities by setting the internal temperature of one heat treatment unit 110 in the range of 5 to 50 ° C. According to claim 1, The organic impurities recovery unit 150, A receiver tank 151 connected to the first heat treatment control unit 120 and provided to recover the liquefied electrolyte and organic binder; Heat treatment system for eco-friendly recycling of waste batteries, characterized in that it comprises a scrubber 152 connected to the receiver tank 151 to store recovered organic impurities and secondary combustion and collection of uncollected off-gas. .

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