An apparatus and method for separating metal from raw material compounds containing metal and using it for deposition of objects

Abstract

An apparatus for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object, wherein the pure metal is separated from a raw material compound containing a metal and then deposited on a target object so that it can be used as a negative electrode material or a positive electrode material of a secondary battery, and the apparatus may be an apparatus for separating a metal from a raw material compound and using it for deposition on a target object, comprising: a main body part forming an internal space into which the raw material compound is injected; a plasma application part that applies plasma to the injected raw material compound to enable a reaction of the raw material compound; and a separation part that separates the metal from the raw material compound.

Description

Technology Field

[0001] The present invention relates to an apparatus and method for separating a metal from a raw material compound containing a metal and using it for deposition on a target object. More specifically, the invention relates to an apparatus and method for separating a pure metal from a raw material compound containing a metal and using it for deposition on a target object so that the pure metal can be separated and then deposited on a target object to be used as a negative electrode or positive electrode material for a secondary battery. Background Technology

[0003] Metal powders are widely used in various industrial fields, and recently, the method of using plasma torches to manufacture such metal powders has become common.

[0004] A plasma torch is a device that generates plasma using a specific gas as a source, heating metal compounds with plasma to dissociate them into individual elements and obtain metal in powder form.

[0005] As such, the method of manufacturing metal powder using a plasma torch has the advantages of being economical and environmentally friendly, as it allows for the production of metal powder using inexpensive raw materials.

[0006] In this regard, the inventor has disclosed a multi-stage plasma torch assembly and a method for manufacturing metal powder using the same, as disclosed in Korean Registered Patent No. 10-2508600 B1 (March 10, 2023).

[0007] However, the above-mentioned multi-stage plasma torch assembly had a problem in that metal oxides were generated within the assembly, making it difficult to separate pure metal. The problem to be solved

[0009] The present invention has been devised to solve the above-mentioned problems and aims to provide an apparatus and method for separating a metal from a metal-containing raw material compound and using it for deposition on a target object, so that after separating a pure metal from a raw material compound, the pure metal can be deposited on a deposition target object used as an electrode material for a secondary battery, thereby reducing the production costs of negative and positive electrode materials and simultaneously improving the efficiency of the production process.

[0011] The problems that the present invention aims to solve are not limited to those described above, and problems not mentioned will be clearly understood by those skilled in the art from this specification and the attached drawings. means of solving the problem

[0013] An apparatus for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object, wherein the pure metal is separated from a raw material compound containing a metal and then deposited on a target object so that it can be used as a negative electrode material or a positive electrode material of a secondary battery, and the apparatus may be an apparatus for separating a metal from a raw material compound and using it for deposition on a target object, comprising: a main body part forming an internal space into which the raw material compound is injected; a plasma application part that applies plasma to the injected raw material compound to enable a reaction of the raw material compound; and a separation part that separates the metal from the raw material compound. Effects of the invention

[0015] According to an apparatus and method for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target body, the advantage is that a pure metal can be obtained by performing sequential separation of the metal from the raw material compound.

[0016] In addition, according to the apparatus and method for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target body, sequential separation of the metal is realized, and since the separation of pure metal is possible, there is an advantage of being able to use a raw material compound with a relatively low unit cost.

[0017] In addition, according to an apparatus and method for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object, the separated metal is deposited on the target object within the apparatus, thereby having the advantage of improving the efficiency of the manufacturing process for a secondary battery electrode material.

[0018] Furthermore, according to an apparatus and method for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object, the pure metal is deposited on the deposition target object, thereby having the advantage of improving the performance of the secondary battery as a result.

[0020] The effects of the present invention are not limited to the effects described above, and unmentioned effects will be clearly understood by those skilled in the art from this specification and the accompanying drawings. Brief explanation of the drawing

[0022] FIG. 1 is a front view illustrating, in its entirety, an apparatus for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object. FIG. 2 is a graph for comparing and explaining that the performance of separating metal from a raw material compound is improved compared to a device formed with a single plasma torch, as the device for separating metal from a raw material compound according to one embodiment of the present invention and using it for deposition on a target object is formed as a multi-stage plasma torch. FIG. 3 is a block diagram for more specifically explaining an apparatus for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object. FIG. 4 is a flowchart for explaining, in general, a method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target body. FIG. 5 is a flowchart for more specifically explaining the step of applying plasma, which constitutes a method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target body. FIG. 6 is a flowchart for more specifically explaining the step of separating a metal, which constitutes a method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target body. Specific details for implementing the invention

[0023] Specific embodiments of the present invention will be described in detail below with reference to the drawings. However, the concept of the present invention is not limited to the presented embodiments. Those skilled in the art who understand the concept of the present invention may easily propose other inventions that are inferior or other embodiments included within the scope of the concept of the present invention by adding, changing, or deleting other components within the same scope of the concept, and such are also to be considered to be included within the scope of the concept of the present invention.

[0025] An apparatus for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object, wherein the pure metal is separated from a raw material compound containing a metal and then deposited on a target object so that it can be used as a negative electrode material or a positive electrode material of a secondary battery, and the apparatus may be an apparatus for separating a metal from a raw material compound and using it for deposition on a target object, comprising: a main body part forming an internal space into which the raw material compound is injected; a plasma application part that applies plasma to the injected raw material compound to enable a reaction of the raw material compound; and a separation part that separates the metal from the raw material compound.

[0026] The above plasma application unit comprises a first plasma application unit that implements a phase change of the raw material compound and a second plasma application unit that supplies hydrogen (H2) to the phase-changed raw material compound to implement a reaction between hydrogen and the raw material compound, and the separation unit may be a device that separates a product generated through the reaction of the raw material compound and separates a metal from the raw material compound to be used for deposition on a target object.

[0027] In addition, the above raw material compound may be at least one of lithium chloride (LiCl) and magnesium chloride (MgCl2).

[0028] The first plasma application unit may be a device that separates metal from a raw material compound and uses it for deposition on a target object, by implementing a phase change of the raw material compound through nitrogen (N2) gas.

[0029] Meanwhile, the above separation unit may be a device for separating a metal from a raw material compound and using it for deposition on a target body, further comprising a first separation unit for separating a substance generated through a reaction between a phase-changed raw material compound and hydrogen (H2), and a second separation unit for separating a substance generated through a reaction between a metal separated from the raw material compound and oxygen (O2).

[0030] More specifically, the first separation unit separates hydrogen chloride (HCl) generated by the reaction of the raw material compound with hydrogen (H2) gas, and the second separation unit separates at least one of lithium oxide (Li2O) and magnesium oxide (MgO) generated by the reaction of the metal separated from the raw material compound with oxygen (O2) gas, and may be an apparatus for separating a metal from a raw material compound to be used for deposition on a target object.

[0031] Furthermore, the apparatus for separating a metal from the above raw material compound and using it for deposition on a target object may further include a deposition unit that implements deposition on the target object through the metal obtained by the separation unit.

[0032] For example, the object may be at least one of copper (Cu) or aluminum (Al).

[0034] A method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target object is a method for separating a pure metal from a raw material compound containing a metal and using it for deposition on a target object so that the pure metal is separated and then deposited on a target object so that it can be used as a negative electrode material or a positive electrode material of a secondary battery. The method may be a method for separating a metal from a raw material compound and using it for deposition on a target object, comprising the steps of: a main body receiving a raw material compound; a plasma application unit applying plasma to the supplied raw material compound; and a separation unit separating a metal from the raw material compound. The method may be implemented by an apparatus for separating a metal from a raw material compound and using it for deposition on a target object.

[0035] The above raw material compound may be at least one of lithium chloride (LiCl) and magnesium chloride (MgCl2).

[0036] The step of applying the plasma comprises: a first plasma application step in which a phase change of the raw material compound is realized by a first plasma application unit; and a second plasma application step in which a reaction between the phase-changed raw material compound and hydrogen is realized by a second plasma application unit; and the separation step may be a method of separating a metal from a raw material compound and using it for deposition on a target body by separating a product generated through the reaction of the raw material compound.

[0037] Here, the first plasma application step may be a method of separating metal from a raw material compound and using it for deposition on a target object by implementing a phase change of the raw material compound through nitrogen (N2) gas.

[0038] Meanwhile, the above separation step may be a method for separating a metal from a raw material compound and using it for deposition on a target body, further comprising a first separation step for separating a substance generated through a reaction between a raw material compound phase-changed by a first separation unit and hydrogen (H2), and a second separation step for separating a substance generated through a reaction between a metal separated from the raw material compound and oxygen (O2) by a second separation unit.

[0039] More specifically, the first separation step may be a method for separating a metal from a raw material compound to be used for deposition on a target object, wherein the first separation step separates hydrogen chloride (HCl) generated by the reaction of the raw material compound with hydrogen (H2) gas, and the second separation step separates at least one of lithium oxide (Li2O) and magnesium oxide (MgO) generated by the reaction of the metal separated from the raw material compound with oxygen (O2) gas.

[0040] A method for separating a metal from the above raw material compound and using it for deposition on a target object may further include, after the separation step, a step in which a deposition unit deposits the metal separated by the separation unit onto a target object.

[0041] For example, the object may be at least one of copper (Cu) or aluminum (Al).

[0043] Components with the same function within the scope of the same concept appearing in the drawings of each embodiment are described using the same reference numeral.

[0045] FIG. 1 is a front view illustrating, in its entirety, an apparatus for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object.

[0046] Figures 2(a) and 2(b) are graphs for comparing and explaining that the performance of separating metal from a raw material compound is improved compared to a device formed with a single plasma torch, as the device for separating metal from a raw material compound according to one embodiment of the present invention and using it for deposition on a target object is formed as a multi-stage plasma torch.

[0047] FIG. 3 is a block diagram for more specifically explaining an apparatus for separating a metal from a raw material compound containing a metal according to one embodiment of the present invention and using it for deposition on a target object.

[0048] FIG. 4 is a flowchart illustrating, in general, a method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target object.

[0049] FIG. 5 is a flowchart for more specifically explaining the step of applying plasma, which constitutes a method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target body.

[0050] FIG. 6 is a flowchart for more specifically explaining the step of separating a metal, which constitutes a method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target body.

[0052] In order to express the technical concept of the present invention more clearly, the attached drawings have simplified or omitted parts that are less related to the technical concept of the present invention or that can be easily derived by those skilled in the art.

[0054] The present invention is capable of various modifications and may have various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description.

[0055] However, this is not intended to limit the invention to specific embodiments, and it should be understood that it includes all modifications, equivalents, and substitutions that fall within the spirit and scope of the invention.

[0056] In describing the present invention, if it is determined that a detailed description of related known technology may obscure the essence of the present invention, such detailed description is omitted.

[0057] Terms such as first, second, etc. may be used to describe various components, but said components should not be limited by said terms.

[0058] The above terms are used solely for the purpose of distinguishing one component from another.

[0059] The terms used in this application are used merely to describe specific embodiments and are not intended to limit the invention.

[0060] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0061] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0062] Hereinafter, with reference to FIGS. 1 to 6, an apparatus and method for separating a metal from a raw material compound according to one embodiment of the present invention and using it for deposition on a target body will be described in detail.

[0064] An apparatus (10, hereinafter referred to as the apparatus) according to one embodiment of the present invention for separating a metal from a raw material compound and using it for deposition on a target object may, for example, mean an apparatus for separating a metal (M) from a raw material compound containing a metal using a multi-stage plasma torch, and then depositing the separated metal (M) onto a deposition target object.

[0065] The above raw material compound may be, for example, at least one of solid lithium chloride (LiCl) and solid magnesium chloride (MgCl2), and the above target body (P) may be, for example, at least one of copper (Cu) or aluminum (Al).

[0066] That is, the above device (10) may mean a device (10) capable of manufacturing a lithium secondary battery electrode material by separating pure lithium (Li) and magnesium (Mg) from solid lithium chloride (LiCl) and solid magnesium chloride (MgCl2), and then depositing the separated metal onto copper (Cu) or aluminum (Al) used as a negative electrode material or a positive electrode material.

[0067] As can be seen in FIG. 1, the above device (10) may include a main body (100) that forms an internal space (S1) and into which a raw material compound containing metal is injected into the internal space (S1).

[0068] More specifically, as can be seen in FIG. 1, the main body (100) supplies a raw material compound into the internal space (S1) through an injection unit (130), and further comprises a first supply unit (110) into which a reaction gas of plasma applied from a first plasma application unit (210) is injected, and a second supply unit (120) into which a reaction gas of plasma applied from a second plasma application unit (220) is injected, so that a reaction of the raw material compound by the plasma application unit (200) can occur.

[0069] The above reaction may refer, for example, to a phase change reaction of a raw material compound and a reaction between a raw material compound and a plasma reaction gas.

[0070] That is, the above main body (100) may mean a configuration in which a raw material compound is injected and a reaction of the raw material compound is carried out by a multi-stage plasma torch for the separation of metal from the raw material compound.

[0071] A method for separating a metal from a raw material compound containing a metal according to another embodiment of the present invention and using it for deposition on a target body is shown in FIG. 4, wherein the raw material compound is supplied into the main body (100) through a step (step S100) in which the main body (100) receives the raw material compound, and the raw material compound may be at least one of solid lithium chloride (LiCl) and solid magnesium chloride (MgCl2) as previously described.

[0072] As previously explained, the device (10) may further be provided with a plasma application unit (200) that applies plasma to the injected raw material compound to enable a reaction of the raw material compound, as can be seen in FIG. 2.

[0073] Figure 2(a) is an X-ray diffraction (XRD) graph showing the separation reaction of lithium chloride (LiCl), a raw material compound, implemented through a single hydrogen plasma torch, and Figure 2(b) is an X-ray diffraction (XRD) graph showing the separation reaction of lithium chloride (LiCl), a raw material compound, implemented through a dual plasma torch provided in the apparatus (10) according to the present invention.

[0074] In Figure 2(a), only a portion of the raw material compound lithium chloride (LiCl) is reduced by hydrogen, and lithium chloride (LiCl) that has not undergone a reduction reaction is also observed, but in the apparatus (10) according to the present invention, after the separation of lithium chloride (LiCl) through a multi-stage plasma torch, only lithium oxide (LI2O) generated by reaction with oxygen is observed.

[0075] That is, the above device (10) is equipped with a multi-stage plasma torch rather than a single plasma torch, thereby enabling more effective separation of metal from raw material products.

[0076] To implement this, the plasma application unit (200) constituting the device (10) is equipped with a first plasma application unit (210) that implements a phase change of the raw material compound and a second plasma application unit (220) that implements a reaction between hydrogen and the raw material compound by supplying hydrogen (H2) to the phase-changed raw material compound, so that the reaction of the raw material compound through the plasma reaction gas can be carried out on the internal space (S1).

[0077] More specifically, the first plasma application unit (210) uses nitrogen (N2) gas as a reaction gas to enable a reaction with the raw material compound as shown in Chemical Formula 1 below to take place in the internal space (S1).

[0078] [Chemical Formula 1]

[0079] (1) LiCl(s) → LiCl(g)

[0080] (2) MgCl2(s) → MgCl2(g)

[0081] That is, the first plasma application unit (210) applies heat to the solid raw material compound through the nitrogen (N2) gas injected through the first supply unit (110), so that the raw material compound can change into a gaseous state on the internal space (S1).

[0082] However, in order for the reaction described in Chemical Formula 1 above to proceed smoothly, the first plasma application unit (210) is configured to apply heat at a temperature of approximately 1400°C to 1600°C, which is higher than the vaporization point of the raw material compound.

[0083] Meanwhile, the second plasma application unit (220) uses hydrogen (H2) gas as a reaction gas to allow a reaction with respect to the raw material compound, such as the following chemical formula 2, to take place in the internal space (S1).

[0084] [Chemical Formula 2]

[0085] (1) LiCl(g) + H2(g) → Li(g) + HCl(g)

[0086] (2) MgCl2(g) + H2(g) → Mg(g) + HCl(g)

[0087] That is, the second plasma application unit (220) enables the reaction between the raw material compound and hydrogen gas, thereby allowing the metal (M) contained in the raw material compound to be separated from the raw material compound by the separation unit (300) to be described later.

[0088] Consequently, the plasma application unit (200) induces a phase change of the raw material compound through the first plasma application unit (210) and induces a reaction between the raw material compound and hydrogen through the second plasma application unit (220), thereby allowing the metal (M) contained in the raw material compound to be separated from the raw material compound by the separation unit (300) to be described later.

[0089] Meanwhile, as can be seen in FIG. 4, the above method enables the phase change of the raw material compound and reaction with hydrogen to be realized through the step (step S100) in which the main body (100) receives the raw material compound, and the step (step S200) in which the plasma application part applies plasma to the supplied raw material compound.

[0090] More specifically, the step of applying the plasma (step S200) induces the vaporization of solid-state lithium chloride (LiCl) and magnesium chloride (MgCl2) through a first plasma application step (step S210) that enables the phase change of the raw material compound to be realized by the first plasma application unit, as can be seen in FIG. 5.

[0091] In the first plasma application step (step S210) above, nitrogen (N2) may be used as the reaction gas.

[0092] In addition, the step of applying the plasma (step S200) allows the second plasma application unit (220) to implement a reaction between the phase-changed raw compound and hydrogen through the second plasma application unit (220) after the first plasma application step (step S210), thereby enabling metals (M) such as lithium (Li) and magnesium (Mg) to be more easily separated from the raw compound by the separation unit (300) to be described later.

[0093] Meanwhile, the above device (10) may further include a separation unit (300) that separates the metal (M) from the raw material compound by separating the product resulting from the reaction between the raw material compound and the reaction gas by the plasma application unit (200).

[0094] The above separation unit (300) may further include a first separation unit (310) for separating a substance generated through a reaction between a phase-changed raw compound and hydrogen (H2), and a second separation unit (320) for separating a substance generated through a reaction between the raw compound and oxygen (O2).

[0095] More specifically, the first separation unit (310) can separate hydrogen chloride (HCl) gas generated by the reaction of the raw material compound and hydrogen (H2) gas.

[0096] For example, the first separation unit (310) may be a known PSA (Pressure swing adsorption method) separation device, and by controlling the pressure to adsorb hydrogen chloride (HCl) gas, the adsorbed hydrogen chloride (HCl) gas is discharged through the outlet (330), thereby allowing the metal (M) to be separated from the raw material compound.

[0097] As another example, the first separation unit (310) may separate the metal (M) from the raw material compound by lowering the temperature below the melting point of the metal (M) to achieve liquefaction of Mg (melting point: 650°C) and Li (melting point: 180°C) and separating gaseous hydrogen chloride.

[0098] In this way, the first separation unit (310) is capable of primarily separating the metal (M) from the raw material compound.

[0099] In addition, the second separation unit (320) can separate the material generated by the reaction between the metal (M) separated from the raw material compound and oxygen (O2) when the raw material compound reacts with hydrogen (H2) by the second plasma application unit (220).

[0100] To explain this in more detail, when the raw material compound reacts with hydrogen (H2) by the second plasma application unit (220), a reaction may occur between the metal (M) separated from the raw material compound and the oxygen (O2) present in the internal space (S1) as shown in Chemical Formula 3 below.

[0101] [Chemical Formula 3]

[0102] (1) Li(g) + O2(g) → Li2O(g)

[0103] (2) Mg(g) + O2(g) → MgO(g)

[0104] Accordingly, the second separation unit (320) is capable of separating pure Li and Mg, which are substances produced by the reaction between the separated metal (M) and oxygen (O2), namely gaseous lithium oxide (Li2O) and gaseous magnesium oxide (MgO), in order to secondarily separate pure metal from the raw material compound.

[0105] For example, the second separation unit (320) causes the lithium oxide (Li2O) and magnesium oxide (MgO) to remain in a gaseous state while the pure lithium (Li) and pure magnesium (Mg) undergo a phase change to a liquid state through a difference in boiling points.

[0106] Accordingly, the second separation unit (320) is capable of separating pure lithium (Li) and pure magnesium (Mg) from a mixture of lithium oxide (Li2O), magnesium oxide (MgO), pure lithium (Li) and pure magnesium (Mg).

[0107] The temperature applied in the second separation unit (320) is relatively lower than the vaporization point temperature of lithium oxide (Li2O), which is approximately 1440°C, and the vaporization temperature of magnesium oxide (MgO), which is approximately 2850°C, and is relatively lower than the vaporization temperature of pure lithium (Li), which is 1340°C, and the vaporization temperature of pure magnesium (Mg), which is 1091°C, so that the second separation unit (320) can separate pure lithium (Li) and pure magnesium (Mg).

[0108] Meanwhile, the above method allows the separation unit (300) to separate the product generated through the reaction between the raw material compound and the reaction gas by plasma in the step of separating the metal from the raw material compound (step S300) after the step of applying the plasma (step S200).

[0109] More specifically, the separation step (step S300) may further include a first separation step (step S310) for separating a substance generated through a reaction between a raw material compound that has undergone a phase change by a first separation unit (310) and hydrogen (H2), as can be seen in FIG. 6, and a second separation step (step S320) for separating a substance generated through a reaction between a metal separated from the raw material compound and oxygen (O2) by a second separation unit (320).

[0110] Accordingly, in the first separation step (step S310), hydrogen chloride (HCl) produced by the reaction of the raw material compound with hydrogen (H2) gas is primarily separated using a known PSA method or a difference in boiling point, and in the second separation step (step S320), substances produced by the reaction between the metal (M) separated from the raw material compound and oxygen (O2), namely lithium oxide (Li2O) and magnesium oxide (MgO), are separated by a difference in boiling point to obtain pure lithium (Li) and pure magnesium (Mg).

[0111] Meanwhile, as can be seen in FIG. 1, the above device (10) may further include a deposition unit (400) that implements the deposition of a target (P) through the metal (M) obtained by the separation unit (300) through the separation process.

[0112] Here, the object (P) may be, for example, copper (Cu) which can be used as a negative electrode material for a secondary battery, and for another example, at least one of aluminum (Al) which can be used as a positive electrode material for a secondary battery.

[0113] The deposition unit (400) allows the pure metal (M), namely pure lithium (Li) and pure magnesium (Mg), obtained by the separation unit (300) to be deposited on the target (P) by a method such as physical vapor deposition (PVD), thereby enabling more effective production of the negative or positive electrode material of a secondary battery and ensuring that the metal with guaranteed purity is deposited, so that the performance of the negative or positive electrode material can be further improved.

[0114] Meanwhile, when only pure lithium (Li) is deposited on the above-mentioned object (P), there is a problem in that dendrites are generally formed on the surface of the object after deposition.

[0115] Accordingly, the device (10) allows pure magnesium (Mg) to be deposited in addition to pure lithium (Li) on the target (P), thereby enabling the magnesium (Mg) to function as a nucleus, so as to minimize the problem of dendrite formation that occurs when only pure lithium (Li) is deposited on the target (P).

[0116] To implement this more effectively, it is desirable that the ratio of lithium (Li) to magnesium (Mg) constituting the raw material compound satisfies 9:1 to 9.9:0.1.

[0117] Meanwhile, the above method may further include a step (step S400) in which, after the separation step (step S300), the deposition unit (400) deposits the metal separated by the separation unit (300) onto the target object.

[0118] The above deposition step (step S400) enables the manufacture of a negative electrode or a positive electrode by depositing a pure metal (M) onto a target (P), such as copper (Cu) or aluminum (Al), using a method such as physical vapor deposition (PVD) with pure lithium (Li) and pure magnesium (Mg).

[0119] In this way, the device (10) enables the primary separation and secondary separation described above to be performed, thereby allowing the pure metal (M) to be separated more effectively from a raw material compound containing metal.

[0120] Accordingly, the device (10) can separate pure lithium (Li) using relatively inexpensive lithium chloride (LiCl) instead of relatively expensive lithium carbonate (Li2CO3), and by allowing the separated pure lithium (Li) to be deposited on a target (P) such as copper (Cu) or aluminum (Al), the production cost of the cathode or anode material is reduced, and at the same time, the performance of the secondary battery can be improved.

[0122] Although the structure and features of the present invention have been described above based on embodiments according to the present invention, the present invention is not limited thereto, and it is obvious to those skilled in the art that various changes or modifications can be made within the spirit and scope of the present invention; therefore, it is noted that such changes or modifications fall within the scope of the appended claims. Explanation of the symbols

[0124] 10: A device that separates metal from a raw material compound and uses it for deposition on a target object. 100: Main body, 200: Plasma application unit 300: Separator 400: Deposition section

Claims

Claim 1 An apparatus for separating a metal from a raw material compound containing a metal and using it for deposition on a target object, comprising: a main body portion forming an internal space into which the raw material compound is injected; a plasma application portion for applying plasma to the injected raw material compound to enable a reaction of the raw material compound; and a separation portion for separating the metal from the raw material compound; an apparatus for separating a metal from a raw material compound and using it for deposition on a target object. Claim 2 In claim 1, the plasma application unit comprises a first plasma application unit that implements a phase change of the raw material compound and a second plasma application unit that supplies hydrogen (H2) to the phase-changed raw material compound to implement a reaction between hydrogen and the raw material compound, and the separation unit separates a product generated through the reaction of the raw material compound, thereby separating a metal from the raw material compound to be used for deposition on a target body. Claim 3 In paragraph 2, the first plasma application unit is a device that separates metal from a raw material compound and uses it for deposition on a target body, which implements a phase change of the raw material compound through nitrogen (N2) gas. Claim 4 In paragraph 2, the separation unit further comprises a first separation unit for separating a substance generated through a reaction between a phase-changed raw material compound and hydrogen (H2), and a second separation unit for separating a substance generated through a reaction between a metal separated from the raw material compound and oxygen (O2), thereby separating a metal from a raw material compound for use in deposition on a target object. Claim 5 In paragraph 4, the above raw material compound is at least one of lithium chloride (LiCl) and magnesium chloride (MgCl2), and the apparatus for separating metal from the raw material compound and using it for deposition on a target object. Claim 6 In claim 5, the first separation unit separates hydrogen chloride (HCl) produced by the reaction of the raw material compound with hydrogen (H2) gas, and the second separation unit separates at least one of lithium oxide (Li2O) and magnesium oxide (MgO) produced by the reaction of the metal separated from the raw material compound with oxygen (O2) gas, thereby separating the metal from the raw material compound for use in deposition on a target object. Claim 7 An apparatus for separating metal from a raw material compound and using it for deposition on a target object, wherein, in claim 1, the deposition unit further comprises a deposition unit that implements the deposition of a target object through the metal obtained by the separation unit. Claim 8 In claim 7, the object is a device for separating a metal from a raw material compound, which is at least one of copper (Cu) or aluminum (Al), and using it for deposition on the object. Claim 9 A method for separating a metal from a raw material compound containing a metal and using it for deposition on a target object, comprising: a step in which a main body receives a raw material compound; a step in which a plasma application unit applies plasma to the supplied raw material compound; and a step in which a separation unit separates the metal from the raw material compound. Claim 10 In claim 9, the step of applying the plasma comprises: a first plasma application step in which a phase change of the raw material compound is realized by a first plasma application unit; and a second plasma application step in which a reaction between the phase-changed raw material compound and hydrogen is realized by a second plasma application unit; and the separation step in which a product generated through the reaction of the raw material compound is separated, a method for separating a metal from a raw material compound and using it for deposition on a target body. Claim 11 In claim 10, the first plasma application step is a method for separating metal from a raw material compound and using it for deposition on a target object, by implementing a phase change of the raw material compound through nitrogen (N2) gas. Claim 12 In claim 10, the separation step further comprises a first separation step for separating a substance generated through a reaction between a raw material compound phase-changed by a first separation unit and hydrogen (H2), and a second separation step for separating a substance generated through a reaction between a metal separated from the raw material compound and oxygen (O2) by a second separation unit, thereby separating a metal from a raw material compound to be used for deposition on a target body. Claim 13 In claim 12, the raw material compound is at least one of lithium chloride (LiCl) and magnesium chloride (MgCl2), the first separation step separates hydrogen chloride (HCl) produced by the reaction of the raw material compound with hydrogen (H2) gas, and the second separation step separates at least one of lithium oxide (Li2O) and magnesium oxide (MgO) produced by the reaction of the raw material compound with oxygen (O2) gas, a method for separating a metal from a raw material compound to be used for deposition on a target body. Claim 14 A method for separating a metal from a raw material compound and using it for deposition on a target object, wherein, in claim 9, after the separation step, a deposition unit deposits the metal separated by the separation unit onto a target object. Claim 15 In claim 14, the above object is a method of separating a metal from a raw material compound, which is at least one of copper (Cu) or aluminum (Al), and using it for deposition on the object.

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