WO2023140573A1

WO2023140573A1 - Electrode manufacturing method

Info

Publication number: WO2023140573A1
Application number: PCT/KR2023/000702
Authority: WO
Inventors: 우규희; 석재영; 권신; 김현태; 김관호
Original assignee: 한국기계연구원
Priority date: 2022-01-18
Filing date: 2023-01-13
Publication date: 2023-07-27
Also published as: KR20230111424A

Abstract

An electrode manufacturing method comprises the steps of: forming a metal precursor in a nanostructure form on a substrate (step S100); applying a surface light source having a predetermined area to change the metal precursor into a metal oxide or metal in a nanostructure form (step S200); and electrodepositing a material for an electrode on the substrate with the metal oxide or metal in a nanostructure form, thereby forming an electrode (step S300). Therefore, uniform electrodeposition of the material for an electrode can be induced to improve the lifespan and capacity of a battery.

Description

Electrode manufacturing method

The present invention relates to a method for manufacturing an electrode, and more particularly, in the manufacture of an electrode used in a high-capacity battery, a surface light source is used to induce lithium affinity, a large specific surface area, and a uniform flux of a material to inhibit metal dendrite growth. It relates to a method for manufacturing an electrode capable of securing cycle stability of a battery.

1 is a process diagram showing a method of manufacturing an electrode according to the prior art, and is a diagram showing the behavior according to the manufacturing and charging and discharging of a lithium metal electrode in a copper foil according to the prior art. As shown in FIG. 1 , in the battery manufacturing method in the prior art, the electrode 1 is manufactured by electrodepositing, for example, lithium as the electrode material 20 on the substrate 10 .

However, in the case of the electrode 1 manufactured in this way, as repeated charging and discharging cycles are performed, the protrusions 21 of the lithium metal negative electrode protrude in a dendrite shape and grow (dendrite growth) occurs. The protrusion 21 that grows in this way reduces the life or capacity of the metal battery, causes a device short circuit, and causes a thermal explosion problem of the battery.

Accordingly, in order to minimize the growth of metal protrusions during the charge/discharge cycle process, a process of growing a metal on a substrate has been developed.

For example, in the case of Japanese Patent Laid-Open No. 2020-502723, a technique for manufacturing a negative electrode of a lithium ion battery discloses applying a process of exposing a metal catalyst to a high-temperature environment for growth.

That is, in the manufacture of a negative electrode through the growth of a metal catalyst, a chemical change process in which an oven or a hot plate is used to expose to a high-temperature environment in a vacuum or reducing atmosphere for a long time has been applied. In the case of such a chemical change process, time and cost increase, or a difficult process of controlling a specific gas atmosphere at a high temperature must be accompanied, and thus there is a limit in maintaining process conditions.

As a related prior art document, there is Japanese Patent Laid-Open No. 2020-502723.

Accordingly, the technical problem of the present invention has been focused on this point, and an object of the present invention is to provide a method for manufacturing an electrode capable of securing cycle stability of a battery by suppressing dendrite growth of metal by inducing lithium affinity, a large specific surface area, and a uniform flux of a material using a surface light source in the manufacture of an electrode used in a high-capacity battery.

A method for manufacturing an electrode according to an embodiment for realizing the object of the present invention described above includes forming a metal precursor on a substrate in a nanostructured form (step S100), applying a surface light source having a predetermined area to convert the metal precursor into a nanostructured metal oxide or metal (step S200), and forming an electrode by electrodepositing a material for an electrode onto a substrate on which the nanostructured metal oxide or metal is formed (step S300).

In one embodiment, the surface light source may be a flash light that is instantaneously provided to the entire area of the substrate on which the metal precursor is formed.

In one embodiment, the substrate is continuously provided, and the surface light source may be a flash light that is instantaneously provided in units of a predetermined area with respect to the continuously provided substrate.

In one embodiment, the substrate is continuously supplied by a supply roll, and after the electrode is formed, the substrate is continuously recovered by a recovery roll, so that a roll-to-roll continuous process may be performed.

In one embodiment, the surface light source may be provided in the air at room temperature.

In one embodiment, a nitrogen atmosphere is provided to the metal precursor formed in the nanostructure form, and the surface light source may be provided in the nitrogen atmosphere.

In one embodiment, in the step S100, a chemical reaction may be induced by immersing the substrate including a metal material in a solution of ammonium persulfate and sodium hydroxide (NaOH) in deionized water.

In one embodiment, the step S200 may include applying the surface light source to the nanostructured metal precursor, changing the metal precursor into a nanostructured metal oxide, further applying the surface light source to the metal oxide, and changing the metal oxide into a nanostructured metal.

In one embodiment, the step S200 may include changing the metal precursor into a nanostructured metal oxide, coating the substrate on which the metal oxide is formed with an alcohol derivative, applying the surface light source to the substrate coated with the alcohol derivative, and changing the metal oxide into a nanostructured metal.

In one embodiment, in the step of coating the alcohol derivative, the alcohol derivative may be coated with any one of blade coating, spray coating, spin coating, and micro-gravure coating.

In one embodiment, the alcohol derivative may be ethylene glycol.

In one embodiment, the metal precursor may be any one of copper hydroxide (Cu(OH) ₂ ), tin hydroxide (Sn(OH) ₂ ), zinc hydroxide (Zn(OH) ₂ ), nickel hydroxide (NiOH), manganese hydroxide (Mn(OH) ₂ ), cobalt hydroxide (Co(OH) ₂ ), and titanium hydroxide (Ti(OH) ₄ ).

In one embodiment, the metal oxide is copper oxide (Cu _x O), nickel oxide (Ni ₂ O), titanium oxide (TiO), zinc oxide (ZnO), tin oxide (SnO _X ), manganese oxide (MnO ₂ ), and cobalt oxide (Co ₃ O ₄ ), and the metal is any one of copper (Cu), nickel (Ni), titanium (Ti), zinc (Zn), tin (Sn), and manganese. It may be any one of (Mn) and cobalt (Co).

In an embodiment, the nanostructure may be any one of a nano-rod, a nano-particle, a nano-flake, a nano-ribbon, and a nano-flower.

In one embodiment, the material for the electrode may be lithium (lithium).

In one embodiment, the electrode may be a negative electrode of a lithium ion battery.

In one embodiment, the electrode may be an electrode for a photoelectrochemical (PEC)-based water splitting device.

According to embodiments of the present invention, in a state in which metal or metal oxide having a nanostructured form is formed on a substrate, protrusions of lithium metal protrude from lithium ions in the charging and discharging process of the electrode and grow in the form of dendrites. Dendrite growth can be minimized. Thus, it is possible to increase the capacity of the battery and maintain a stable charge/discharge state.

In this case, in forming the metal oxide or metal in the nanostructure form, by providing a surface light source having a predetermined area to the substrate in an area unit, it is possible to form the metal oxide or metal integrally in a unit area unit, thereby improving the convenience of the process.

In particular, since the surface light source can be provided in the air at room temperature, the process of forming the metal oxide or metal can be further simplified. Furthermore, since a continuous process can be performed by providing a surface light source as flash light to continuously provided substrates, the efficiency of electrode production can be improved and mass production can be possible. That is, by applying a roll-to-roll continuous production process, the efficiency of electrode production can be improved.

Furthermore, the electrode manufactured by the electrode manufacturing method can be used as a negative electrode of a lithium ion battery or an electrode for a photoelectrochemical (PEC)-based water splitting device, and can have various usability.

1 is a process chart showing a manufacturing method of an electrode according to the prior art.

2 is a flowchart illustrating a method of manufacturing an electrode according to an embodiment of the present invention.

Figure 3 is a schematic diagram showing a manufacturing method of the electrode of Figure 2.

FIG. 4 is a flowchart illustrating an example of a step of changing the metal precursor of FIG. 2 into a metal oxide or metal in a nanostructured form.

5A to 5C are process diagrams showing the step of changing to the metal of FIG. 4 .

6A is an image showing copper hydroxide in a nanostructured form as a metal precursor, and FIG. 6B is an image showing copper oxide in a changed nanostructured form.

FIG. 7 is a flowchart illustrating another example of a step of changing the metal precursor of FIG. 2 into a nanostructured metal oxide or metal.

8a to 8c are process charts showing the step of changing to the metal of FIG. 7 .

FIG. 9a is an image showing copper oxide in a nanostructured form, and FIG. 9b is an image showing copper in a changed nanostructured form.

10 is a graph showing a change in charge capacity when charging and discharging are repeated for a lithium electrode without a nanostructured form, a lithium electrode formed with copper oxide in a nanostructured form according to the present embodiments, and a lithium electrode formed with copper in a nanostructured form.

2: electrode 10: substrate

20, 30: electrode material 21: protrusion

31: surface portion 50: metal precursor

60: metal oxide 70: metal

80: alcohol derivative 100: light source unit

110: surface light source

Since the present invention can be applied with various changes and can have various forms, embodiments will be described in detail in the text. However, this is not intended to limit the present invention to a specific form disclosed, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Like reference numerals have been used for like elements throughout the description of each figure. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms.

These terms are only used for the purpose of distinguishing one component from another. Terms used in this application are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "comprise" or "consisting of" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but it should be understood that the presence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof is not precluded.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present application.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described in more detail.

2 is a flowchart illustrating a method of manufacturing an electrode according to an embodiment of the present invention. Figure 3 is a schematic diagram showing a manufacturing method of the electrode of Figure 2.

Referring to FIGS. 2 and 3 , in the method of manufacturing an electrode according to this embodiment, first, a metal precursor is formed in a nanostructured form on the substrate 10 (step S100).

In this case, the nanostructure may include various structures such as, for example, nano-rods, nano-particles, nano-flakes, nano-ribbons, nano-flowers, and the like. However, hereinafter, for convenience of description, the nanostructure is described as having a nanorod shape.

In this case, the substrate 10 may be a variety of flexible or stretchable substrates, and may be, for example, a metal foil such as copper.

In particular, in the case of the substrate 10, although it is shown as having a plate shape having a certain area through FIG. 3 and the drawings to be described later, it is flexible or stretchable, so it is easy to deform, and furthermore, it can be continuously supplied in a roll-to-roll manner.

When the substrate 10 is continuously supplied in the roll-to-roll method, although not shown, a supply roll continuously provided in a state in which the substrate 10 is wound, and an electrode formed after all processes described later are completed. A recovery roll for recovering again may be provided. Furthermore, a plurality of control rolls may be provided between the supply roll and the recovery roll to realize continuous supply of the substrate 10 .

In this way, when the method of manufacturing the electrode is implemented in a roll-to-roll method, the substrate shown in the drawing may be only a partial area where a predetermined process is performed on the substrate 10 continuously supplied.

In forming the metal precursor on the substrate 10 to have a nanostructured shape, the metal precursor (50, see FIG. 5A) may be, for example, copper hydroxide (Cu(OH) ₂ ), tin hydroxide (Sn(OH) ₂ ), zinc hydroxide (Zn(OH) ₂ ), nickel hydroxide (NiOH), manganese hydroxide (Mn(OH) ₂ ), cobalt hydroxide (Co(OH)) ₂ ), titanium hydroxide (Ti(OH) ₄ ).

In this case, the metal precursor 50 may be manufactured to have a nanostructured shape by inducing a chemical reaction by immersing the substrate 10 having a metal material in a predetermined solution.

For example, when the substrate 10 is a copper foil as described above, the substrate 10 is immersed in a solution of ammonium persulfate and sodium hydroxide (NaOH) in deionized water to induce a chemical reaction. Thus, copper hydroxide (Cu(OH) ₂ ) having a nanostructured shape as a metal precursor is formed.

At this time, the solution may be, for example, a mixture of 2.5 M sodium hydroxide and 0.13 M ammonium persulfate in 50 mL of deionized water, and the chemical reaction may be described by the following chemical formula.

Furthermore, metal precursors of various metal materials may be formed through the same process for other metal materials.

Thereafter, by applying a surface light source 110 (FIG. 5B) to the substrate 10, the metal precursor is changed into a metal oxide or metal in a nanostructured form (step S200).

That is, the metal precursor formed on the substrate 10 is changed into a metal oxide or a metal, and this process will be described in more detail through drawings to be described later.

On the other hand, the surface light source 110 provides light having an area substantially equal to the area of the substrate 10 to be processed with respect to the substrate 10 having a predetermined area. For example, the surface light source 110 may be instantaneously provided flash light.

That is, if the substrate 10 is a single substrate having, for example, a rectangular shape, the surface light source 110 is light that is provided with the same light energy for the entire area of the single substrate that needs a metal oxide or metal conversion process (at this time, the area that needs to be treated may be the same as the entire area of the substrate or may be a smaller area than the substrate).

In contrast, if the substrate 10 is, for example, a continuously supplied substrate, the surface light source 110 is a light that is simultaneously supplied with the same light energy to the entire area requiring metal oxide or metal conversion treatment among the continuously supplied substrates.

Thus, with respect to the substrate continuously supplied, the surface light source may be periodically provided in the form of flash light to a predetermined area, and the substrate may be intermittently supplied by a predetermined distance to match the supply period of the surface light source. Accordingly, the substrate receives flash light in units of a predetermined area.

Meanwhile, in this embodiment, the surface light source 110 is provided in a room temperature standby state, and accordingly, the above-described treatment process for the substrate 10 may also be performed in a room temperature standby state.

Alternatively, according to an embodiment, a nitrogen atmosphere is provided to the metal precursor formed in the nanostructure form, and the surface light source 110 may be provided in the nitrogen atmosphere. That is, after the metal precursor is formed in the nanostructured form on the substrate 10, the metal precursor formed in the nanostructured form is placed in a chamber or a predetermined space provided with a nitrogen atmosphere, and the surface light source 110 is provided to the chamber or the space.

Thus, the surface light source 110 may be provided in a nitrogen atmosphere.

As described above, when the metal oxide or metal is formed on the substrate 10, the electrode 2 is formed by electrodepositing the electrode material 30 to the substrate 10 on which the metal oxide or metal in the nanostructure form is formed (step S300).

In this case, lithium may be used as the electrode material 30, and the electrode material is not necessarily limited to lithium. That is, the material for the electrode may be replaced with various materials depending on the use of the electrode to be finally manufactured. However, hereinafter, for convenience of explanation, it will be described that lithium is used as the electrode material 30 .

Thus, as shown in FIG. 3, the lithium 30 electrode 2 is formed on the substrate 10, and the metal oxide 60 or metal 70 having a nanostructured shape is formed inside the lithium 30 electrode.

Accordingly, even when the electrode 2 is subjected to repeated charging and discharging (cycling), dendrite growth does not occur by protruding from the lithium 30 ions in the form of branches.

This is because the surface portion 31 of the lithium 30 is formed with a relatively uniform shape, and thus the uniform shape of the surface portion 31 is maintained even when charging and discharging are performed.

Therefore, even if repetitive charging and discharging is performed, a short is not caused, and a problem of reducing the lifespan or capacity of the battery is minimized.

Hereinafter, the step of forming the metal oxide 60 or the metal 70 (step S200) will be described in detail.

FIG. 4 is a flowchart illustrating an example of a step of changing the metal precursor of FIG. 2 into a metal oxide or metal in a nanostructured form. 5A to 5C are process diagrams showing the step of changing to the metal of FIG. 4 . 6A is an image showing copper hydroxide in a nanostructured form as a metal precursor, and FIG. 6B is an image showing copper oxide in a changed nanostructured form.

4, 5a and 5b, in step S200, first, the surface light source 110 is applied to the metal precursor 50 having a nanostructure form and formed on the substrate 10 (step S210).

In this case, the surface light source 110 is as described above, and the surface light source 110 may be provided through a separate light source unit 100 .

As described above, when the surface light source 110 is applied, the metal precursor 50 is changed into a nanostructured metal oxide 60 (step S211).

As described above, the metal precursor 50 is, for example, copper hydroxide (Cu(OH)₂), tin hydroxide (Sn(OH)₂), zinc hydroxide (Zn (OH)₂), nickel hydroxide (NiOH), manganese hydroxide (Mn(OH)₂), cobalt hydroxide (Co(OH)₂), titanium hydroxide (Ti(OH)₄) If any of them, according to the provision of the surface light source, copper hydroxide (Cu (OH)₂) is copper oxide (Cu_xO), tin hydroxide (Sn(OH)₂) is tin oxide (SnO_X), as zinc hydroxide (Zn (OH)₂) is zinc oxide (ZnO), and nickel hydroxide (NiOH) is nickel oxide (Ni₂O), manganese hydroxide (Mn(OH)₂) is manganese oxide (MnO₂), cobalt hydroxide (Co(OH)₂) is cobalt oxide (Co₃O₄), titanium hydroxide (Ti(OH)₄) is converted to titanium oxide (TiO).

That is, referring to FIG. 6A, for example, copper hydroxide (Cu(OH) ₂ ) as the metal precursor 50 formed on the substrate 10 has nanostructures of various lengths, shapes, and arrangements. It is a state formed on the substrate 10.

Accordingly, when the surface light source 110 is provided, copper oxide (Cu _x O) is formed by being oxidized and changed to a dark color as a whole according to the provision of the light source. In addition, in the case of the copper oxide (Cu _x O), although it has a nanostructured shape, the shape of the nanostructured copper hydroxide (Cu(OH) 2 ) changes to have a more irregular shape than the shape of the nanostructured copper hydroxide (Cu(OH) ₂ ).

Furthermore, the nanostructures also have a shape in which some parts are intertwined or intersected with each other.

Meanwhile, as described above, even in a state where metal oxide is formed on the substrate 10, the electrode 2 may be directly formed by performing the process of electrodepositing lithium (step S300).

That is, as described above, when lithium is electrodeposited in a state in which the nanostructure shapes are intertwined or intersected with each other, the affinity with lithium is improved and the electrodeposition with lithium 30 can be performed more uniformly. Accordingly, a uniform surface portion is formed even during the charging and discharging process of lithium 30, so that separate protrusions protrude in the form of branches and grow (dendrite growth) does not occur.

Alternatively, as shown in FIGS. 4 and 5C , the surface light source 110 may be additionally applied to the metal oxide 60 having a nanostructure form and formed on the substrate 10 (step S212).

Thus, when the surface light source 110 is additionally applied, the metal oxide 60 is changed into a metal 70 in a nanostructured form (step S223).

As described above, the metal oxide 60 is, for example, copper oxide (Cu_xO), nickel oxide (Ni₂O), titanium oxide (TiO), zinc oxide (ZnO), tin oxide (SnO)_X), manganese oxide (MnO₂), cobalt oxide (Co₃O₄), if any, the copper oxide (Cu_xO) is copper (Cu), nickel oxide (Ni₂O) is nickel (Ni), titanium oxide (TiO) is titanium (Ti), zinc oxide (ZnO) is zinc (Zn), tin oxide (SnO)_X) is tin (Sn), manganese oxide (MnO₂) is manganese (Mn), cobalt oxide (Co₃O₄) is changed to cobalt (Co).

In this case, an actual image of the metal formed on the substrate 10 according to the additional provision of the surface light source 110 will be described later with reference to FIG. 9B.

Furthermore, as described above, after the metal 70 having a nanostructured form is formed on the substrate 10, the process of electrodepositing lithium (step S300) is performed to form the electrode 2.

Meanwhile, another example of the step S200 will be described as follows.

FIG. 7 is a flowchart illustrating another example of a step of changing the metal precursor of FIG. 2 into a nanostructured metal oxide or metal. 8a to 8c are process charts showing the step of changing to the metal of FIG. 7 . FIG. 9a is an image showing copper oxide in a nanostructured form, and FIG. 9b is an image showing copper in a changed nanostructured form.

That is, referring to FIGS. 7 and 8A, in step S200, first, the metal precursor 50 having a nanostructured form and formed on the substrate 10 is converted into a metal oxide 60 having a nanostructured form (step S220).

In this case, as a method of changing the metal precursor 50 into the metal oxide 60, a process other than the method of providing the surface light source 110 described above may be applied.

For example, a laser light or other light may be applied to the metal precursor 50 in addition to a surface light source, and a predetermined temperature or heat may be provided.

Then, referring to FIGS. 7 and 8B , the metal oxide 60 formed on the substrate 10 is coated with an alcohol derivative 80 (step S221).

That is, the alcohol derivative 80 is uniformly coated on the metal oxide 60 formed on the substrate 10 while having a nanostructured shape.

In this case, the metal oxide 60 may be, for example, any one of copper oxide (Cu _x O), nickel oxide (Ni ₂ O), titanium oxide (TiO), zinc oxide (ZnO), tin oxide (SnO _X ), manganese oxide (MnO ₂ ), and cobalt oxide (Co ₃ O ₄ ), and the alcohol derivative 80 may be ethylene glycol.

In addition, various coating processes may be applied to the process of coating the alcohol derivative 80, and for example, any one of blade coating, spray coating, spin coating, and micro-gravure coating may be applied.

After that, referring to FIGS. 7 and 8C, the surface light source 110 is applied to the metal oxide 60 having a nanostructured form coated with the alcohol derivative 80 (step S222), The surface light source 110 is applied, and the metal oxide 60 is formed on the substrate 10 by changing into a metal 70 having a nanostructured form (step S223).

That is, referring to FIG. 9A, for example, copper oxide (Cu _x O) as the metal oxide 60 formed on the substrate 10, as described with reference to FIG. 6B, is a state in which nanostructures are formed on the substrate 10 in various lengths, shapes, and arrangements.

Accordingly, when the surface light source 110 is provided, copper (Cu) is formed according to the provision of the light source. In addition, in the case of the copper (Cu), although it has a nanostructured shape, the shape of the nanostructured shape is changed or distorted in more various ways than that of copper oxide (Cu _x O) of the nanostructured shape. It changes to have an irregular shape. Furthermore, the nanostructured shapes have shapes that intertwine or intersect with each other.

As these nanostructured shapes have intertwined or crossed shapes, when lithium is electrodeposited, the affinity with lithium is improved and the electrodeposition with lithium 30 can be performed more uniformly. Accordingly, a uniform surface portion is formed even during the charging and discharging process of lithium 30, so that separate protrusions protrude in the form of branches and grow (dendrite growth) does not occur.

That is, after the metal 70 having a nanostructured form is formed on the substrate 10, a process of electrodepositing lithium (step S300) is performed to form the electrode 2.

The electrode 2 formed as described above may be, for example, a negative electrode of a lithium ion battery. Alternatively, the electrode 2 may be used as an electrode for a photoelectrochemical (PEC)-based water splitting device.

However, in the following, a change in charge capacity was considered when the electrode 2 is used as a negative electrode of a lithium ion battery.

That is, as shown in FIG. 10, in the case where an electrode is formed by electrodepositing lithium on a substrate on which a metal (Cu) is formed rather than a nanostructure (NR) form (Li-Cu Foil), it can be confirmed that the charging capacity rapidly decreases as cycles are performed.

On the other hand, as in the present embodiment, in the case where an electrode is formed by electrodepositing lithium on a substrate on which a metal oxide (CuO) having a nanostructure (NR) form is formed or a substrate on which a metal (Cu) having a nanostructure (NR) form is formed (Li—CuO NR, Li—Cu NR), it can be seen that the charge capacity is maintained relatively constant even if cycling is performed repeatedly.

In particular, when an electrode is formed by electrodepositing lithium on a substrate on which a metal (Cu) having a nanostructure (NR) form is formed (Li-Cu NR), the period in which the uniformity of the charge capacity is maintained is further increased. It can be confirmed.

According to the embodiments of the present invention as described above, in a state in which a metal or metal oxide having a nanostructured form is formed on a substrate, protrusions of lithium metal protrude in the form of dendrites from lithium ions during the charging and discharging process of the electrode. Dendrite growth can be minimized. Thus, it is possible to increase the capacity of the battery and maintain a stable charge/discharge state.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art can variously modify and change the present invention without departing from the spirit and scope of the present invention described in the claims below. It will be understood that it can be changed.

Claims

Forming a metal precursor on a substrate in the form of a nanostructure (step S100);

Applying a surface light source having a predetermined area to change the metal precursor into a nanostructured metal oxide or metal (step S200); and

A method of manufacturing an electrode comprising forming an electrode by electrodepositing a material for an electrode onto a substrate on which the nanostructured metal oxide or metal is formed (step S300).
The method of claim 1, wherein the surface light source,

A method of manufacturing an electrode, characterized in that the flash light is instantaneously provided to the entire area of the substrate on which the metal precursor is formed.
According to claim 1,

The substrate is provided continuously,

The surface light source is a method of manufacturing an electrode, characterized in that the flash light is instantaneously provided in units of a predetermined area with respect to the continuously provided substrate.
According to claim 3,

The substrate is continuously supplied by a supply roll,

After the electrode is formed, it is continuously recovered by a recovery roll,

Method for producing an electrode, characterized in that carried out in a roll-to-roll continuous process.
According to claim 1,

The surface light source is a method of manufacturing an electrode, characterized in that provided in the air at room temperature.
According to claim 1,

A method of manufacturing an electrode, characterized in that a nitrogen atmosphere is provided to the metal precursor formed in the nanostructure form, and the surface light source is provided in the nitrogen atmosphere.
The method of claim 1, wherein in the step S100,

A method for producing an electrode, characterized in that the substrate comprising a metal material is immersed in a solution of ammonium persulfate and sodium hydroxide (NaOH) in deionized water to induce a chemical reaction.
The method of claim 1, wherein the step S200,

applying the surface light source to the nanostructured metal precursor;

converting the metal precursor into a nanostructured metal oxide;

additionally applying the planar light source to the metal oxide; and

The method of manufacturing an electrode comprising the step of changing the metal oxide into a metal in a nanostructured form.
The method of claim 1, wherein the step S200,

converting the metal precursor into a nanostructured metal oxide;

coating an alcohol derivative on the substrate on which the metal oxide is formed;

applying the surface light source to the substrate coated with the alcohol derivative; and

The method of manufacturing an electrode comprising the step of changing the metal oxide into a metal in a nanostructured form.
The method of claim 9, wherein the step of coating the alcohol derivative,

Method for producing an electrode, characterized in that the alcohol derivative is coated with any one of blade coating, spray coating, spin coating, and micro-gravure coating.
The method of claim 9, wherein the alcohol derivative,

Method for producing an electrode, characterized in that the ethylene glycol (ethylene glycol).
The method of claim 1, wherein the metal precursor,

Copper hydroxide (Cu(OH) 2 ), tin hydroxide (Sn(OH) 2 ), zinc hydroxide (Zn(OH) 2 ), nickel hydroxide (NiOH), manganese hydroxide (Mn(OH) 2 ), cobalt hydroxide (Co(OH) 2 ), a method for producing an electrode, characterized in that any one of titanium hydroxide (Ti(OH) 4 ).
According to claim 1,

The metal oxide is any one of copper oxide (Cu x O), nickel oxide (Ni 2 O), titanium oxide (TiO), zinc oxide (ZnO), tin oxide (SnO X ), manganese oxide (MnO 2 ), and cobalt oxide (Co 3 O 4 ),

The metal is a method of manufacturing an electrode, characterized in that any one of copper (Cu), nickel (Ni), titanium (Ti), zinc (Zn), tin (Sn), manganese (Mn), cobalt (Co).
The method of claim 1, wherein the nanostructure,

A method of manufacturing an electrode, characterized in that it is any one of nano-rod, nano-particle, nano-flake, nano-ribbon, and nano-flower.
The method of claim 1, wherein the material for the electrode

Method for producing an electrode, characterized in that lithium (lithium).
The method of claim 1, wherein the electrode,

A method of manufacturing an electrode, characterized in that it is a negative electrode of a lithium ion battery.
The method of claim 1, wherein the electrode,

A method for manufacturing an electrode, characterized in that it is an electrode for a photoelectrochemical (PEC)-based water splitting device.