Apparatus for low-damage separation of electrode active materials from crushed waste secondary battery scrap thin films

Abstract

According to an apparatus for low-damage separation of electrode active materials from crushed waste secondary battery scrap thin films of the present invention, electrode active materials (black mass) can be separated in a wet form without separate heat treatment from scrap thin film (aluminum / copper) current collectors shredded and crushed during a waste secondary battery recycling process.

Description

Low-damage separation device for electrode active materials from thin films of crushed scrap from waste secondary batteries

[0001] The present invention relates to a low-damage separation device for electrode active materials in a thin film of scrap pulverized waste from secondary batteries, and more particularly, to a low-damage separation device for electrode active materials in a thin film of scrap pulverized waste from secondary batteries, which enables the separation of electrode active materials (black mass) in a wet form from a current collector (aluminum / copper) of a thin film of scrap pulverized waste from secondary batteries that has been crushed and pulverized during a recycling process of secondary batteries, without a separate heat treatment.

[0002] The content described in this section merely provides background information for one embodiment of the present invention and does not constitute prior art.

[0003]

[0004] While scrap metal resources continue to increase globally, their recycling remains low, contributing to environmental pollution and resource waste. Consequently, interest in utilizing scrap metal resources has grown, and technology development for recycling spent batteries has been ongoing. Commercial recycling plants for spent manganese batteries, alkaline manganese batteries, and silver oxide batteries are currently operating in the US, Japan, and Europe. However, recycling of spent lithium secondary batteries is extremely limited due to their explosive potential.

[0005]

[0006] In particular, several small domestic companies have been conducting research and feasibility studies on the recovery of metals such as copper and lithium cobalt oxide, but progress has been slow due to a lack of technological capabilities. Currently, research is being conducted in Korea to commercialize a treatment process for recycling spent lithium-ion batteries. Several companies are working to develop a physical process to selectively separate and concentrate cathode active materials from spent lithium-ion batteries, as well as a chemical treatment process to maximize the recovery of rare metals such as cobalt. However, low recovery rates and purity have been the main issues.

[0007]

[0008] The lithium secondary battery cathode material market is expected to be driven by lithium secondary batteries for electric vehicles (EVs) from 2018 onward, with NMC batteries expected to be a key player. Furthermore, Korean companies' share of the lithium secondary battery market is projected to rapidly increase to 54% by 2020, making the development of technologies to recycle cobalt and nickel from NMC cathode materials from spent secondary batteries crucial. In this regard, the need for recovery technologies and methods capable of recycling these materials into secondary battery cathode active materials has intensified.

[0009]

[0010] The cells of a waste secondary battery module are composed of copper thin films, aluminum thin films, and polymer membranes between them, and the thin films of these cells are coated with various rare metal oxides in powder form. These powders are bonded with an organic adhesive (PVDF). As shown in Fig. 1, the process of separating electrode active materials from scrap thin films for recovering electrode active materials during the waste secondary battery recycling process is a conventional process in which electrode active materials are separated through heat treatment using high heat or a separation process using a solvent. Fig. 1 is a diagram illustrating an example of a method for separating electrode active materials from existing scrap thin films.

[0011]

[0012] In this way, in the past, in order to separate the current collector and the active material during the recycling process of waste secondary batteries, a process was applied to separate the current collector and the active material through physical sieving after removing the organic adhesive applied to adhere the active material to the current collector through high-temperature heat treatment, etc. However, in the case of the existing process, there was a problem that damage occurred to the positive electrode active material due to high temperatures because the active material was converted into another substance through a smelting process and then remanufactured again.

[0013]

[0014] The background technology described above is technical information that the inventor possessed for the purpose of deriving the present invention or acquired in the process of deriving the present invention, and cannot necessarily be said to be publicly known technology disclosed to the general public prior to the application for the present invention.

[0015] The present invention is proposed to solve the above problems of the existing proposed methods, and comprises: a reactor into which scrap waste from secondary batteries that has been crushed and pulverized through pretreatment during a waste secondary battery recycling process is input and positioned in an internal water phase; an ultrasonic generator unit that generates ultrasonic waves so that electrode active materials coated on a current collector of the scrap waste from secondary batteries input to be positioned in the internal water phase of the reactor can be detached by vibration; a probe unit that transmits ultrasonic waves generated from the ultrasonic generator unit to the scrap waste from secondary batteries positioned in the internal water phase of the reactor to generate vibration and detachment; a stirring unit within the reactor that stirs the scrap waste from secondary batteries in the internal water phase so that the scrap waste from secondary batteries can directly react to the probe unit that transmits ultrasonic energy generated within the reactor; a sieve unit for separating current collectors (aluminum / copper), plastics, and separators dispersed in the internal water phase from the scrap waste from secondary batteries through vibration and detachment of the probe unit; and a separator unit that is present in the internal water phase of the reactor. The purpose of the present invention is to provide a low-damage separation device for electrode active material from a thin film of scrap pulverized from waste secondary batteries, which comprises a membrane section for separating and removing a cathode active material and an organic adhesive, thereby enabling the electrode active material (black mass) to be separated in a wet form from a thin film (aluminum / copper) current collector of scrap pulverized and crushed during a waste secondary battery recycling process without separate heat treatment.

[0016]

[0017] In addition, the present invention provides a device for separating electrode active materials from a scrap pulverized thin film (aluminum / copper) current collector without separate heat treatment, in a wet form, from a scrap pulverized thin film (aluminum / copper) that has been crushed and pulverized during a waste secondary battery recycling process, and by separating and recovering a powdered rare metal (electrode active material) coated on the scrap pulverized thin film using ultrasonic waves, thereby minimizing damage to the cathode active material through a physical reaction during the separation process of the current collector and the active material, thereby further improving the regeneration and upcycling of the cathode active material, thereby providing a low-damage separation device for electrode active materials from a scrap pulverized thin film of waste secondary batteries.

[0018]

[0019] However, the technical problems to be solved by the present invention are not limited to the technical problems described above, and other technical problems may exist.

[0020] In order to achieve the above-mentioned purpose, a device for separating electrode active materials with low damage from a thin film of scrap pulverized waste secondary batteries according to the features of the present invention is provided.

[0021] As a low-damage separation device for electrode active materials from a thin film of crushed scrap from waste secondary batteries,

[0022] A reactor in which scrap of used secondary batteries that has been crushed and pulverized through preprocessing during the recycling process of used secondary batteries is fed and positioned in the water phase inside;

[0023] An ultrasonic generator unit that generates ultrasonic waves so that the electrode active material coated on the current collector of the crushed waste secondary battery scrap placed in the water phase of the reactor can be detached by vibration;

[0024] A probe device unit that transmits ultrasonic waves generated from the ultrasonic generator unit to the crushed waste secondary battery scrap located in the water inside the reactor to generate vibration and detachment action;

[0025] A stirring device within a reactor that stirs the waste secondary battery scrap in the water inside the reactor so that the waste secondary battery scrap can directly react to a probe device that transmits ultrasonic energy generated within the reactor;

[0026] A sieving device for separating the current collector (aluminum / copper), plastic, and separator dispersed in the water phase from the crushed waste secondary batteries through the vibration and detachment action of the probe device; and

[0027] The composition is characterized by including a membrane section for separating and removing a cathode active material and an organic adhesive present in the water phase within the above reactor.

[0028]

[0029] Preferably, the reactor comprises:

[0030] A solution is used in which the crushed and pulverized scrap of waste secondary batteries, which has been crushed and pulverized through pretreatment during the waste secondary battery recycling process, is injected into the water phase, and the solution can be circulated through a recovery pipe and reused.

[0031]

[0032] More preferably, the reactor comprises:

[0033] A solution is used in which the crushed and pulverized scrap of waste secondary batteries, which has been crushed and pulverized through pretreatment during the waste secondary battery recycling process, is introduced into the water phase, and the solution may be composed of water or a solvent.

[0034]

[0035] Preferably, the ultrasonic generator unit,

[0036] Ultrasonic waves are generated so that the electrode active material coated on the collector of the crushed waste secondary battery scrap placed in the water phase of the above reactor can be detached by vibration, and the frequency can be adjusted in the range of 20 to 40 kHz and the intensity can be adjusted in the range of 50 to 300 W.

[0037]

[0038] More preferably, the probe device unit,

[0039] The ultrasonic wave generated from the above ultrasonic generator unit is configured to transmit ultrasonic waves to the crushed waste secondary battery scrap located in the water inside the reactor to generate vibration and a desorption action, and may be configured with a plurality of ultrasonic generators transmitting ultrasonic waves.

[0040]

[0041] Even more preferably, the plurality of ultrasonic generators,

[0042] It can be configured with an integrated transducer that can be linked from a minimum of 2 to a maximum of 6.

[0043]

[0044] Preferably, the sieve device unit is

[0045] It can be configured with multiple sieve sections (141) to separate the current collector (aluminum / copper), plastic, and separator dispersed in the water phase from the crushed waste of a used secondary battery through the vibration and detachment action of the probe device section.

[0046]

[0047] More preferably, the membrane portion,

[0048] A first membrane for recovering the positive electrode active material and the organic adhesive remaining in the water phase in the reactor; and

[0049] It can be configured to include a second membrane for recovering and removing an organic adhesive other than the positive electrode active material recovered by the first membrane.

[0050] According to the low-damage separation device for electrode active materials in a thin film of crushed waste secondary battery scrap proposed in the present invention, crushed waste secondary battery scrap, which has been crushed and pulverized through pretreatment during a waste secondary battery recycling process, is inputted, and a reactor is positioned in an internal water phase, an ultrasonic generator unit that generates ultrasonic waves so that electrode active materials coated on a current collector of the crushed waste secondary battery scrap inputted to be positioned in the internal water phase of the reactor can be detached by vibration, a probe unit that transmits ultrasonic waves generated from the ultrasonic generator unit to the crushed waste secondary battery scrap positioned in the internal water phase of the reactor to generate vibration and detachment, a stirring unit inside the reactor that stirs the internal water phase of the waste secondary battery scrap so that the waste secondary battery scrap can directly react to the probe unit that transmits the ultrasonic energy generated inside the reactor, a sieving unit for separating a current collector (aluminum / copper), plastic, and a separator dispersed in the internal water phase from the crushed waste secondary battery through the vibration and detachment of the probe unit, By including a membrane section for separating and removing the cathode active material and organic adhesive present in the water phase within the reactor, it is possible to separate the electrode active material (black mass) from the thin film (aluminum / copper) current collector of the scrap crushed and pulverized during the recycling process of waste secondary batteries in a wet form without separate heat treatment.

[0051]

[0052] In addition, according to the low-damage separation device of the present invention for electrode active material in a thin film of scrap pulverized from waste secondary battery, the electrode active material (black mass) is separated in a wet form from a current collector of a thin film of scrap pulverized from waste secondary battery that is crushed and pulverized during a recycling process of waste secondary batteries without a separate heat treatment, and the rare metal (electrode active material) in powder form coated on the thin film of scrap pulverized from waste is separated and recovered using ultrasonic waves, thereby minimizing damage to the cathode active material through a physical reaction during the separation process of the current collector and the active material, and thereby further improving the regeneration and upcycling of the cathode active material.

[0053]

[0054] In addition, the various advantageous advantages and effects of the present invention are not limited to the above-described contents, and will be more easily understood in the process of explaining specific embodiments of the present invention.

[0055] Figure 1 is a drawing illustrating an example of a method for separating electrode active material from a conventional scrap thin film.

[0056] FIG. 2 is a drawing showing the configuration of a low-damage separation device for electrode active materials in a thin film of crushed scrap from a used secondary battery according to an embodiment of the present invention, with functional blocks.

[0057] FIG. 3 is a drawing showing the configuration of a probe device section of a low-damage separation device for electrode active material from a thin film of crushed scrap from a used secondary battery according to an embodiment of the present invention, in functional blocks.

[0058] FIG. 4 is a drawing showing the configuration of a sieving device section of a low-damage separation device for electrode active material in a thin film of crushed scrap from a used secondary battery according to an embodiment of the present invention, as a functional block.

[0059] FIG. 5 is a drawing showing the configuration of a membrane section of a low-damage separation device for electrode active materials in a thin film of crushed scrap from a used secondary battery according to an embodiment of the present invention, in functional blocks.

[0060] <Explanation of symbols>

[0061] 100: Low-damage separation device for electrode active material according to one embodiment of the present invention

[0062] 110: Reactor

[0063] 120: Ultrasonic generator unit

[0064] 130: Probe device section

[0065] 131: Ultrasonic generator

[0066] 140: Stirring device inside the reactor

[0067] 150: Sieve device section

[0068] 151: Sieve section

[0069] 160: Membrane section

[0070] 161: First membrane

[0071] 162: Second membrane

[0072] Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement them. However, the present invention may be implemented in various different forms and is not limited to the embodiments described herein. In the drawings, irrelevant parts have been omitted for clarity of description, and similar reference numerals have been used throughout the specification to indicate similar parts.

[0073]

[0074] Throughout the specification, when a part is said to be "connected" to another part, this includes not only the case where it is "directly connected" but also the case where it is "indirectly connected" with another element in between. Furthermore, when a part is said to "include" a component, this should be understood to mean that, unless specifically stated to the contrary, it may include other components rather than excluding them, and does not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0075]

[0076] The following examples are provided as detailed explanations to aid understanding of the present invention and do not limit the scope of the invention. Therefore, inventions with the same scope and function as the present invention are also within the scope of the present invention.

[0077]

[0078] In addition, each configuration, process, procedure or method included in each embodiment of the present invention may be shared within a scope that is not technically inconsistent with each other.

[0079]

[0080] FIG. 2 is a drawing showing the configuration of a low-damage separation device for electrode active materials in a thin film of crushed scrap from a used secondary battery according to an embodiment of the present invention, with functional blocks. As illustrated in FIG. 2, a device (100) for separating electrode active materials from a thin film of crushed waste secondary battery scrap according to an embodiment of the present invention comprises: a reactor (110) into which crushed waste secondary battery scrap, which has been crushed and pulverized through pretreatment during a waste secondary battery recycling process, is input, and which is positioned in an internal water phase; an ultrasonic generator unit (120) that generates ultrasonic waves so that electrode active materials coated on a current collector of the crushed waste secondary battery scrap, which is input to be positioned in the internal water phase of the reactor (110), can be detached by vibration; a probe unit (130) that transmits ultrasonic waves generated from the ultrasonic generator unit (120) to the crushed waste secondary battery scrap, which is positioned in the internal water phase of the reactor (110), to generate vibration and detachment; and a reactor that stirs the internal water phase of the waste secondary battery scrap so that the waste secondary battery scrap can directly react to the probe unit (130) that transmits ultrasonic energy generated inside the reactor (110). It can be configured to include a sieve unit (150) for separating the collector (aluminum / copper), plastic, and separator dispersed in the aqueous phase in the pulverized waste secondary battery through the vibration and detachment action of the stirring unit (140) and the probe unit (130), and a membrane unit (160) for separating and removing the cathode active material and organic adhesive present in the aqueous phase in the reactor (110). Hereinafter, with reference to the attached drawings, a specific configuration of a low-damage separation device for electrode active material in a thin film of pulverized waste secondary battery scrap according to an embodiment of the present invention will be described in detail.

[0081]

[0082] FIG. 3 is a drawing showing the configuration of a probe device section of a low-damage separation device for electrode active materials in a thin film of pulverized waste secondary battery scrap according to an embodiment of the present invention as a functional block, FIG. 4 is a drawing showing the configuration of a sieve device section of a low-damage separation device for electrode active materials in a thin film of pulverized waste secondary battery scrap according to an embodiment of the present invention as a functional block, and FIG. 5 is a drawing showing the configuration of a membrane section of a low-damage separation device for electrode active materials in a thin film of pulverized waste secondary battery scrap according to an embodiment of the present invention as a functional block.

[0083]

[0084] The reactor (110) is configured to receive scrap waste from secondary batteries that has been crushed and pulverized through pretreatment during the recycling process for secondary batteries, and to position it in an internal water phase. This reactor (110) uses a solution that is received in an internal water phase from scrap waste from secondary batteries that has been crushed and pulverized through pretreatment during the recycling process for secondary batteries, and the solution can be circulated through a recovery pipe and reused.

[0085]

[0086] In addition, the reactor (110) uses a solution in which the crushed and pulverized waste secondary battery scrap, which has been crushed and pulverized through pretreatment during the waste secondary battery recycling process, is introduced into the water phase. The solution may be composed of water or a solvent. Here, a sulfuric acid aqueous solution and hydrogen peroxide may be used as the solvent.

[0087]

[0088] The ultrasonic generator unit (120) is configured to generate ultrasonic waves so that the electrode active material coated on the current collector of the crushed waste secondary battery scrap placed in the water phase of the reactor (110) can be detached by vibration. The ultrasonic generator unit (120) generates ultrasonic waves so that the electrode active material coated on the current collector of the crushed waste secondary battery scrap placed in the water phase of the reactor (110) can be detached by vibration, and the frequency is configured to be controlled in the range of 20 to 40 kHz and the intensity is configured to be controlled in the range of 50 to 300 W. Here, the ultrasonic generator unit (120) can be understood as an ultrasonic generation driving circuit for controlling the frequency and intensity of generating ultrasonic waves.

[0089]

[0090] The probe device unit (130) is configured to transmit ultrasonic waves generated from the ultrasonic generator unit (120) to the crushed waste secondary battery scrap located in the water phase inside the reactor (110) to generate vibration and a detachment action. As illustrated in FIG. 3, the probe device unit (130) is configured to transmit ultrasonic waves generated from the ultrasonic generator unit (120) to the crushed waste secondary battery scrap located in the water phase inside the reactor (110) to generate vibration and a detachment action, and may be configured with a plurality of ultrasonic generators (131) that transmit ultrasonic waves. Here, the plurality of ultrasonic generators (131) may be configured as integrated transducers that can be linked from a minimum of two to a maximum of six.

[0091]

[0092] The stirring device (140) inside the reactor is configured to stir the spent secondary battery scrap in the water inside so that the spent secondary battery scrap can directly react to the probe device (130) that transmits ultrasonic energy generated inside the reactor (110).

[0093]

[0094] The sieve unit (150) is configured to separate the current collector (aluminum / copper), plastic, and separator dispersed in the water phase from the crushed waste secondary batteries through the vibration and detachment action of the probe unit (130). As illustrated in Fig. 4, the sieve unit (150) may be configured with a plurality of sieve units (151) for separating the current collector (aluminum / copper), plastic, and separator dispersed in the water phase from the crushed waste secondary batteries through the vibration and detachment action of the probe unit (130). Here, the plurality of sieve units (151) may be selectively configured in the range of 1 to 4 as needed.

[0095]

[0096] In addition, the sieve filter unit (150) is used in a separation process to separate the active material and the collector, plastic, separator, etc. present in the water after the separation process of the active material and the collector is completed, and through this process step, the active material and the crushed waste secondary battery are efficiently separated, and the mesh diameter of the plurality of sieve filter units (151) used at this time can be selectively applied as 10 to 50 mm depending on the size of the crushed material.

[0097]

[0098] The membrane unit (160) is configured to separate and remove the positive electrode active material and organic adhesive present in the water phase within the reactor (110). As illustrated in FIG. 5, the membrane unit (160) may include a first membrane (161) for recovering the positive electrode active material among the positive electrode active material and organic adhesive remaining in the water phase within the reactor (110), and a second membrane (162) for recovering and removing the organic adhesive excluding the positive electrode active material recovered by the first membrane (161). Here, the membrane section (160) is composed of a first membrane (161) for separating the positive electrode active material and organic adhesive present in the water phase within the reactor (110) and a second membrane (162) for removing the organic adhesive present in the end, and the second membrane (162) for removing the organic adhesive can be applied to the inlet of a recovery pipe for recovering the solution (water or solvent) within the reactor (110) in order to reuse the solution applied for the reaction within the reactor (110).

[0099]

[0100] In addition, the first membrane (161) can function to recover the active material with a membrane having a diameter of 1 to 3 mm to recover the active material and organic adhesive remaining in the water, and the second membrane (162) can function to separate and remove the solution (water or solvent) applied for underwater dispersion separation in the reactor (110) and to separate and remove the organic adhesive by being installed at the beginning of the solution recovery pipe for recycling in the reactor (110).

[0101]

[0102] In this way, the low-damage separation device (100) for electrode active material in a thin film of scrap waste from secondary batteries can be configured to separate materials (Cu, Al, plastic, separator) corresponding to scrap waste from secondary batteries by separating the detached active material and the current collector through a physical dispersion action (ultrasonic dispersion) without going through heat treatment and chemical treatment, unlike the existing method of separating active materials from electrode plate scrap from secondary batteries, and by separating the materials (Cu, Al, plastic, separator) corresponding to scrap waste from secondary batteries through sieving, and recycling the used solution and removing the organic adhesive through the membrane.

[0103]

[0104] As described above, the low-damage separation device for electrode active materials in a thin film of crushed waste secondary battery scrap according to an embodiment of the present invention comprises: a reactor into which crushed waste secondary battery scrap, which has been crushed and pulverized through pretreatment during a waste secondary battery recycling process, is input, and which is positioned in an internal water phase; an ultrasonic generator unit that generates ultrasonic waves so that electrode active materials coated on a current collector of the crushed waste secondary battery scrap, which is input to be positioned in the internal water phase of the reactor, can be detached by vibration; a probe unit that transmits ultrasonic waves generated from the ultrasonic generator unit to the crushed waste secondary battery scrap located in the internal water phase of the reactor to generate vibration and detachment; a stirring unit within the reactor that stirs the internal water phase of the waste secondary battery scrap so that the waste secondary battery scrap can directly react to the probe unit that transmits the ultrasonic energy generated within the reactor; and a current collector (aluminum / copper), plastic, and separator dispersed in the internal water phase of the crushed waste secondary battery through vibration and detachment of the probe unit. By including a sieve device and a membrane device for separating and removing the cathode active material and organic adhesive present in the water phase in the reactor, it is possible to separate the electrode active material (Black Mass) from the current collector of the scrap pulverized thin film (aluminum / copper) that is crushed and pulverized during the recycling process of used secondary batteries in a wet form without a separate heat treatment, and in particular, by separating the electrode active material (Black Mass) from the current collector of the scrap pulverized thin film (aluminum / copper) that is crushed and pulverized during the recycling process of used secondary batteries in a wet form without a separate heat treatment, and by separating and recovering the rare metal (electrode active material) in powder form coated on the scrap pulverized thin film using ultrasonic waves, the separation process of the current collector and the active material is performed by minimizing damage to the cathode active material through a physical reaction, and thereby the regeneration and upcycling of the cathode active material can be further improved.

[0105]

[0106] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. For example, each component described as a single entity may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined manner.

[0107]

[0108] The scope of the present invention is indicated by the claims described below rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

Claims

1. As a low-damage separation device (100) for electrode active materials in a thin film of crushed scrap from waste secondary batteries, A reactor (110) into which crushed and pulverized scrap of waste secondary batteries is fed during a preprocessing process for recycling waste secondary batteries and is positioned in the water phase therein; An ultrasonic generator unit (120) that generates ultrasonic waves so that the electrode active material coated on the current collector of the crushed waste secondary battery scrap placed in the water phase of the above reactor (110) can be detached by vibration; A probe device unit (130) that transmits ultrasonic waves generated from the ultrasonic generator unit (120) to the crushed waste secondary battery scrap located in the water inside the reactor (110) to generate vibration and detachment action; A stirring device (140) inside the reactor that stirs the waste secondary battery scrap in the water inside the reactor so that the waste secondary battery scrap can directly react to the probe device (130) that transmits ultrasonic energy generated inside the reactor (110); A sieving device (150) for separating the current collector (aluminum / copper), plastic, and separator dispersed in the water phase from the crushed waste secondary batteries through the vibration and detachment action of the probe device (130); and A low-damage separation device for electrode active materials in a thin film of crushed scrap from waste secondary batteries, characterized by including a membrane section (160) for separating and removing the cathode active material and organic adhesive present in the water phase within the reactor (110).

2. In the first paragraph, the reactor (110) A device for separating electrode active materials with low damage from a thin film of scrap waste from scrap waste from secondary batteries, characterized in that the device uses a solution in which scrap waste from secondary batteries that has been crushed and pulverized through pretreatment during the recycling process of secondary batteries is injected into the water phase, and the solution is circulated through a recovery pipe and reused.

3. In the second paragraph, the reactor (110) A device for separating electrode active materials with low damage from a thin film of scrap waste from a waste secondary battery, characterized in that the device uses a solution in which scrap waste from a waste secondary battery is crushed and pulverized through pretreatment during a waste secondary battery recycling process and is injected into an aqueous phase, wherein the solution is composed of water or a solvent.

4. In the first paragraph, the ultrasonic generator unit (120) A device for separating electrode active materials from a thin film of scrap waste from scrap waste, characterized in that it generates ultrasonic waves so that the electrode active materials coated on the collector of scrap waste from scrap waste from scrap waste from scrap waste from scrap waste can be detached by vibration, and the frequency is adjusted to 20 to 40 kHz and the intensity is adjusted to 50 to 300 W.

5. In the fourth paragraph, the probe device unit (130) A device for separating electrode active materials with low damage from a thin film of scrap waste from secondary batteries, characterized in that it is configured to transmit ultrasonic waves generated from the ultrasonic generator unit (120) to the scrap waste from secondary batteries located underwater inside a reactor (110) to generate vibrations and a desorption action, and is configured with a plurality of ultrasonic generators (131) for transmitting ultrasonic waves.

6. In the fifth paragraph, the plurality of ultrasonic generators (131) A device for separating electrode active materials with low damage from a thin film of scrap pulverized waste from secondary batteries, characterized by comprising an integrated transducer capable of linking from a minimum of two to a maximum of six.

7. In any one of the first to sixth clauses, the sieve device (150) A device for separating electrode active materials with low damage from a thin film of scrap pulverized waste secondary batteries, characterized by comprising a plurality of sieve sections (151) for separating current collectors (aluminum / copper), plastic, and separators dispersed in the water phase from the scrap pulverized waste secondary batteries through the vibration and detachment action of the probe device section (130).

8. In the 7th paragraph, the membrane part (160) A first membrane (161) for recovering the positive electrode active material and the organic adhesive remaining in the water phase in the above reactor (110); and A device for separating electrode active materials with low damage from a thin film of scrap from a used secondary battery, characterized in that it comprises a second membrane (162) for recovering and removing organic adhesives other than the positive electrode active material recovered by the first membrane (151).

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