Electrode manufacturing device and electrode manufacturing method

Abstract

An electrode manufacturing device according to an embodiment of the present invention comprises: an inner space for accommodating an electrode slurry and a current collector; an electrode slurry inlet for injecting the electrode slurry into the inner space; a box-shaped cast having a current collector inlet for introducing the current collector into the inner space; and a heat source configured to heat the cast in order to dry the electrode slurry filled in the cast, wherein, in order to laminate the electrode slurry on both sides of the current collector, the current collector inlet is located at the center of a first surface of the cast, on which the current collector inlet is formed, and the cast is configured to compress the electrode slurry toward the current collector to roll the electrode slurry laminated on both sides of the current collector.

Description

Electrode manufacturing device and electrode manufacturing method

[0001] This application claims the benefit of priority from Korean Patent Application No. 10-2023-0116626, filed on September 4, 2023.

[0002] The present invention relates to a manufacturing device and a manufacturing method for an electrode for a lithium secondary battery, and more particularly, to a manufacturing device and a manufacturing method for an ultra-high loading electrode.

[0003]

[0004] As technological development and demand for mobile devices increase, the demand for secondary batteries as an energy source is rapidly increasing. Recently, the use of secondary batteries as a power source for electric vehicles (EVs) and hybrid electric vehicles (HEVs) has become a reality, and among such secondary batteries, the demand for lithium secondary batteries with high energy density, high discharge voltage, and output stability is high.

[0005] In particular, lithium secondary batteries used as power sources for electric vehicles (EVs) and hybrid electric vehicles (HEVs) require high energy density and the ability to generate large output in a short period of time.

[0006] In general, lithium secondary batteries are manufactured by using materials capable of inserting and de-inserting lithium ions as the anode and cathode, and filling an organic electrolyte or polymer electrolyte between the anode and cathode, and generating electrical energy through oxidation and reduction reactions when lithium ions are inserted and de-inserted from the anode and cathode.

[0007] At this time, the negative electrode and the positive electrode include an electrode active material layer on the current collector of each electrode, and such electrode can be manufactured by mixing and stirring the electrode active material with a binder and a solvent, and, if necessary, a conductive material and a dispersant to prepare an electrode slurry, and then applying the electrode slurry on the current collector using a slot die coater, and drying and rolling.

[0008] Recently, as the demand for secondary batteries with high energy density increases, the demand for high-loading and ultra-high-loading electrodes with more electrode slurry loaded on the current collector is increasing.

[0009] However, the above-described traditional electrode manufacturing method has a problem that, as the loading amount (thickness) of the electrode slurry increases, the electrode slurry discharged from the slot die coater becomes larger than the target electrode size due to its high flowability during the application process, and a collapse phenomenon occurs in which the loading amount becomes smaller at the edge of the electrode slurry application area in the width direction compared to the center of the electrode slurry application area. In addition, the traditional electrode manufacturing method has a problem that, as the loading amount (thickness) of the electrode slurry increases, the occurrence of cracks caused by the difference in drying speed near the boundary between the electrode slurry application area and the uncoated area where the electrode slurry is not applied during the drying process of the electrode slurry can be aggravated.

[0010] Therefore, in manufacturing high-loading or ultra-high-loading electrodes, it is necessary to develop a new technology to solve the problems associated with the traditional electrode manufacturing method.

[0011]

[0012] The present invention aims to provide a novel electrode manufacturing device and method for solving problems of conventional electrode manufacturing methods despite an increase in loading amount in manufacturing a high-loading electrode or an ultra-high-loading electrode.

[0013]

[0014] According to one embodiment of the present invention, an electrode manufacturing device is provided. The electrode manufacturing device comprises: a box-shaped cast having an internal space for accommodating electrode slurry and a current collector; an electrode slurry inlet for injecting the electrode slurry into the internal space; and a current collector inlet for injecting the current collector into the internal space; and a heat source configured to heat the cast to dry the electrode slurry filled inside the cast, wherein the current collector inlet is positioned at the center of a first surface of the cast on which the current collector inlet is formed to laminate the electrode slurry on both surfaces of the current collector, and the cast can be configured to press the electrode slurry in the direction of the current collector to roll the electrode slurry laminated on both surfaces of the current collector.

[0015] In one embodiment, the cast may further include a first vent hole for discharging gas generated by vaporizing a solvent of an electrode slurry laminated on one surface of the current collector to the outside of the cast; and a second vent hole for discharging gas generated by vaporizing a solvent of an electrode slurry laminated on the other surface of the current collector to the outside of the cast.

[0016] In one embodiment, the cast may be configured to independently control the horizontal length, vertical length, and thickness length of the internal space.

[0017] In one embodiment, the cast may be configured to secure the entire body.

[0018] In one embodiment, the cast may be configured to hold the entire body in an upright position.

[0019] In one embodiment, the internal space of the cast can be divided into first and second internal spaces by the introduction of a collector.

[0020] An electrode manufacturing device according to one embodiment may further include a driving unit for moving the first and second pressing surfaces of the cast in the pressing direction for pressing the electrode slurry laminated on both sides of the current collector.

[0021] In one embodiment, the heat source may be embedded in the cast.

[0022] In one embodiment, the heat source may be built into the first and second pressurized surfaces of the cast for rolling the electrode slurry laminated on both sides of the current collector.

[0023] In one embodiment, the electrode slurry inlet may include a first electrode slurry inlet for injecting electrode slurry to be deposited on one surface of the current collector and a second electrode slurry inlet for injecting electrode slurry to be deposited on the other surface of the current collector.

[0024] According to another embodiment of the present invention, a method for manufacturing an electrode is provided. The method for manufacturing the electrode may be a method for manufacturing the electrode using the electrode manufacturing device described above.

[0025] In one embodiment, the method for manufacturing the electrode may include a process of inserting a current collector into the current collector inlet; a process of injecting electrode slurry through the electrode slurry inlet so that the electrode slurry is deposited on both sides of the current collector; a process of heating the heat source to dry the electrode slurry; and a process of rolling the electrode slurry simultaneously with the start of the heating process or in the middle of the heating process.

[0026] The electrode manufacturing method according to one embodiment may further include, prior to the current collector introduction process, a process of adjusting the volume of the internal space of the cast so that the volume of the internal space is appropriate for the specifications of the electrode to be manufactured.

[0027] In one embodiment, during the process of injecting the electrode slurry, the electrode slurry may be injected in an amount such that the loading amount of the electrode slurry to be laminated on one surface of the current collector is 600 mg / 25㎠ or more.

[0028] In one embodiment, the process of heating the heat source may be initiated when the internal space is completely filled with the electrode slurry.

[0029]

[0030] According to one embodiment of the present invention, since electrode slurry is injected into a cast having a sealed internal space having a set specification, and the electrode slurry is configured to be dried and pressed while the internal space is completely filled with the electrode slurry, there is no room for sliding due to the flowability of the electrode slurry, so that an electrode having a desired specification can be manufactured.

[0031] According to one embodiment of the present invention, since the electrode slurry can be compressed simultaneously with drying of the electrode slurry, even if the loading amount of the electrode slurry is increased, cracks that may be caused by drying deviation do not occur, enabling the production of an electrode with an ultra-high loading.

[0032] According to one embodiment of the present invention, by simultaneously drying and compressing the electrode slurry, the boiling point of the solvent in the electrode slurry can be lowered, so that the drying temperature can be set lower than in conventional electrode manufacturing equipment, thereby preventing changes in the physical properties of the electrode due to high drying temperatures.

[0033]

[0034] Figure 1 is a front view of an electrode manufacturing device according to exemplary embodiments.

[0035] Figure 2 is an internal diagram of an electrode manufacturing device according to exemplary embodiments.

[0036] Figure 3 is a top view of an electrode manufacturing device according to exemplary embodiments.

[0037] Figure 4 is a drawing showing the appearance after electrode slurry is injected into the internal space of the cast.

[0038] FIG. 5 is a flowchart illustrating an electrode manufacturing method according to an exemplary embodiment of the present invention.

[0039] Figure 6 is a flowchart illustrating an electrode manufacturing method according to an exemplary embodiment of the present invention.

[0040] [Explanation of symbols]

[0041] 100: Electrode manufacturing device

[0042] 110: Cast

[0043] 111a: First inner space, 111b: Second inner space

[0044] 112a, 112b: Electrode slurry inlet

[0045] 113: Whole house inlet

[0046] 114a: 1st vent hole, 114b: 2nd vent hole

[0047] 115: Page 1

[0048] 116: First pressurized surface

[0049] 117: Second pressurized surface

[0050] 120: Heat source

[0051] 130: Drive unit

[0052] 140: Temperature control unit

[0053] 150: Control unit

[0054] 11: Whole house

[0055] 12: Electrode slurry

[0056]

[0057] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings. Prior to this, it should be noted that the terms and words used in this specification and claims should not be construed as limited to their conventional or dictionary meanings. Based on the principle that the inventor can appropriately define the concepts of terms to best explain his or her invention, they should be interpreted in a way that aligns with the technical spirit of the present invention.

[0058] Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention. Therefore, it should be understood that there may be various equivalents and modified examples that can replace them at the time of filing this application.

[0059] In addition, when describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description is omitted.

[0060] Since the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art, the shapes and sizes of components in the drawings may be exaggerated, omitted, or schematically illustrated for clearer explanation. Accordingly, the sizes and proportions of each component do not fully reflect the actual sizes or proportions.

[0061] In this specification, the meaning of laminating electrode slurry is a concept that includes filling the remaining space, excluding the current collector, in the internal space of the cast with electrode slurry to form an electrode slurry layer on the current collector.

[0062]

[0063] (Example 1)

[0064] The present invention provides an electrode manufacturing device as a first embodiment.

[0065] FIG. 1 is a front view of an electrode manufacturing apparatus according to exemplary embodiments, FIG. 2 is an internal view of an electrode manufacturing apparatus according to exemplary embodiments, FIG. 3 is a top view of an electrode manufacturing apparatus according to exemplary embodiments, and FIG. 4 is a drawing showing the appearance after electrode slurry is injected into the internal space of a cast.

[0066] Referring to these drawings, an electrode manufacturing device (100) according to exemplary embodiments may include a box-shaped cast (110) having an internal space (111a, 111b); and a heat source (120). An electrode manufacturing device (100) according to one embodiment may be configured to continuously press the drying electrode slurry (12) in the direction of the current collector (11) while the current collector (11) and electrode slurry (12) are introduced into the internal space (111a, 111b) of the cast.

[0067] An electrode manufacturing device (100) according to an embodiment of the present invention is configured so that drying and rolling processes can be performed simultaneously in a state where electrode slurry (12) is sufficiently filled in an internal space (111a, 111b) having a predetermined volume. When an electrode is manufactured using such an electrode manufacturing device (100), there is no room for sliding due to the flowability of the electrode slurry, so that an electrode can be manufactured according to the specifications of the target electrode. In addition, since the thickness of the electrode slurry applied is uniform and the drying process and the rolling process can be performed simultaneously, there is no risk of cracking, so that an electrode with a significantly increased electrode slurry loading amount can be manufactured. In addition, since the electrode slurry being dried is continuously pressurized, the boiling point of the solvent is lowered, so that the electrode can be dried at a lower drying temperature compared to a conventional electrode drying method, and thus there is also an effect of preventing changes in the physical properties of the electrode due to a high drying temperature.

[0068] In one embodiment, the cast (110) may be provided with an internal space (111a, 111b) for accommodating electrode slurry (12) and a current collector (11); an electrode slurry inlet (112a, 112b) for injecting electrode slurry (12) into the internal space (111a, 111b); and a current collector inlet (113) for injecting the current collector (11) into the internal space (111a, 111b).

[0069] The above cast (110) can be configured to be sealable in order to dry and press the electrode slurry filled therein, and the material of the cast is not particularly limited, but it is preferably a metallic material with excellent thermal conductivity for drying the electrode slurry.

[0070] The internal space (111a, 111b) may have a rectangular parallelepiped shape corresponding to the shape of the electrode, and the cast (110) may be configured so that the horizontal direction (X direction) length, vertical direction length (Y direction), and thickness direction length (Z direction) of the internal space (111a, 111b) can be independently adjusted. Accordingly, the volume of the internal space (111a, 111b) can be adjusted appropriately to the target specifications of the electrode to be manufactured.

[0071] As shown in Fig. 3, the current collector inlet (113) can be located at the center of the first surface (115) of the cast in which the current collector inlet is formed, and thus, the electrode slurry (12) can be laminated on both sides of the current collector (11).

[0072] When the current collector (11) is injected into the internal space (111a, 111b) of the cast through the current collector inlet (113), the internal space (111a, 111b) can be divided into first and second internal spaces (111a, 111b) by the current collector (11). The electrode slurry (12) injected into the first internal space (111a) can become a first electrode active material layer (12a) through a drying and rolling process, and the electrode slurry (12) injected into the second internal space (111b) can become a second electrode active material layer (12b) through a drying and rolling process.

[0073] The above electrode slurry injection ports (112a, 112b) may be two or more corresponding to the first and second internal spaces (111a, 111b). That is, the electrode slurry injection ports may include a first electrode slurry injection port (111a) for injecting electrode slurry to be laminated on one surface (11a) of the current collector, and a second electrode slurry injection port (111b) for injecting electrode slurry to be laminated on the other surface (12b) of the current collector.

[0074] When injecting electrode slurry (12) into the internal space (111a, 111b), in order to prevent the current collector (11) from moving due to the flow of the electrode slurry, the cast (110) may be configured to fix the current collector (11). The cast (110) may include a current collector fixing member (not shown) to fix the current collector injected into the internal space.

[0075] The configuration of the above-mentioned current collector fixing member is not particularly limited as long as it can prevent the electrode current collector from shaking during the process of injecting the electrode slurry (12) and drying and rolling, and specifically, it may be a gripper configured to press both sides of the current collector. In addition, the gripper may include a first gripper mounted around the current collector inlet (113); and a second gripper mounted on the opposite side of the first surface (115) where the current collector inlet (113) is formed, and the first gripper can press one side of the current collector and the second gripper can press the other side of the current collector, thereby fixing the current collector.

[0076] The above cast (110) may be configured to fix the collector in a horizontal state, or as shown in FIGS. 2 and 4, may be configured to fix the collector (11) in a standing state. Here, the horizontal state means a state in which the plane of the collector (11) is horizontal to the bottom surface of the cast, and the standing state means a state in which the plane of the collector (11) is perpendicular to the bottom surface of the cast (110).

[0077] When the above cast (110) is configured to fix the current collector (11) in an upright state, the gravity direction (Y direction) of the electrode slurry when the electrode slurry is injected is parallel to the plane of the current collector, so the gravity of the electrode slurry does not act on the plane of the current collector. That is, when the cast (110) is configured to fix the current collector in an upright state, even if the electrode slurry is injected simultaneously onto both sides of the current collector, the current collector is not damaged by the weight of the electrode slurry, so the productivity of electrode manufacturing can be improved.

[0078] Meanwhile, when the cast (110) is configured to fix the current collector (11) in a horizontal state, the gravity direction of the electrode slurry (12) becomes perpendicular to the plane of the current collector, so that the weight of the electrode slurry (12) applies force to the current collector. In order to prevent damage to the current collector (11) due to the weight of the electrode slurry, a method of sequentially injecting the electrode slurry into the first internal space and the second internal space when injecting it into the internal space of the cast may be considered. However, in this case, there is a disadvantage in that productivity is lowered compared to a case in which the current collector is fixed in a standing state.

[0079] The heat source (120) may be configured to heat the cast (110) to dry the electrode slurry (12) filled inside the cast. Referring to FIGS. 2 and 4, the heat source (120) may be built into the cast (110).

[0080] Meanwhile, the cast (110) may have a hexahedral shape in which six walls are combined to be sealable for drying and pressing the electrode slurry filled therein, and the portions in which the heat source is built-in may be the first and second pressurizing surfaces (116, 117) for pressing the electrode slurry. When the heat source is built-in to the first and second pressurizing surfaces (1116, 117), it is preferable because the drying efficiency can be increased when drying and rolling are performed simultaneously. However, the present invention is not limited thereto, and the heat source (120) may be built-in to the remaining four surfaces in addition to the first and second pressurizing surfaces (1116, 117).

[0081] The above heat source (120) is not limited in form or means as long as it can heat the cast (110) surrounding the heat source, and an induction heating coil can be exemplified as a specific example of the heat source (120).

[0082] The temperature of the heat source (120) can be controlled by a temperature control unit (140). Specifically, after the internal space of the cast (110) is completely filled with electrode slurry, the temperature control unit (140) can control the temperature of the heat source (120) to increase in order to dry the electrode slurry. When the temperature of the heat source increases, the cast is heated, thereby increasing the temperature of the electrode slurry. In addition, the temperature control unit (140) can control the temperature of the heat source to decrease so that the cast becomes room temperature after drying of the electrode slurry is completed.

[0083] As the above heat source (120) is heated and the electrode slurry is heated, drying occurs in which the solvent in the electrode slurry is vaporized and removed. At this time, in order to discharge the vaporized solvent to the outside of the cast, the cast (110) may be provided with vent holes (114a, 114b).

[0084] In one embodiment, the cast (110) may be provided with a first vent hole (Vent Hole, 114a) for discharging gas generated by vaporizing a solvent of an electrode slurry laminated on one surface (11a) of a current collector to the outside of the cast; and a second vent hole (114b) for discharging gas generated by vaporizing a solvent of an electrode slurry laminated on the other surface (11b) of the current collector to the outside of the cast.

[0085] The positions of the first vent hole (114a) and the second vent hole (114b) are not particularly limited, but in order to increase the gas discharge efficiency, they are preferably placed on the first and second pressurized surfaces (116, 117) for pressing the electrode slurry among the six surfaces constituting the cast.

[0086] The above cast (110) is configured to press the electrode slurry (12) in the direction of the current collector (11) in order to roll the electrode slurry laminated on both sides of the current collector (11). Referring to FIG. 4, in order to press the electrode slurry filled in the internal space in the direction of the current collector (arrow direction), two surfaces constituting the cast (110) can be configured to move in the direction of the current collector. The two surfaces face each other, and in this specification, the two surfaces for pressing the electrode slurry filled in the internal space of the cast are respectively referred to as a first pressing surface (116) and a second pressing surface (117).

[0087] The electrode manufacturing device (100) according to the present invention may further include a driving unit (130) for moving the first and second pressurized surfaces (116, 117) of the cast in the pressing direction. The driving unit (130) may include a motor that provides a driving force to continuously move the first and second pressurized surfaces (116, 117) during drying of the electrode slurry. In addition, the driving unit may move the first and second pressurized surfaces (116, 117) in the pressing direction, and may maintain the state after moving the first and second pressurized surfaces (116, 117) by a set moving distance. In addition, after the manufacturing of the electrode is completed, the driving unit (130) may provide a driving force to return the first and second pressurized surfaces (116, 117) to their original positions.

[0088] An electrode manufacturing device (100) according to one embodiment may include a main control unit (150), and the main control unit (150) may be configured to control the volume of the internal space of the cast (110), the temperature control unit (140), and the driving unit (130).

[0089] Unlike conventional electrode manufacturing equipment, the above electrode manufacturing device injects electrode slurry into a cast with a sealed internal space having a set specification, so there is no room for sliding due to the flowability of the electrode slurry, enabling the manufacturing of electrodes of the desired specification. In addition, since the electrode slurry can be compressed while being dried, unlike conventional electrode manufacturing equipment, cracking is prevented, and the boiling point of the solvent in the electrode slurry can be lowered, allowing the drying temperature to be set lower than in conventional electrode manufacturing equipment.

[0090]

[0091] (Example 2)

[0092] The present invention provides a method for manufacturing an electrode as a second embodiment.

[0093] An electrode manufacturing method according to an exemplary embodiment of the present invention is characterized by using the electrode manufacturing device described above. Accordingly, the electrode manufacturing device described above has the effects of the electrode manufacturing device described above.

[0094] FIG. 5 is a flowchart illustrating a method for manufacturing an electrode according to an exemplary embodiment of the present invention. Referring to FIG. 5, the method for manufacturing an electrode according to an embodiment of the present invention may include a step of inserting a current collector into the current collector inlet (P110); a step of injecting electrode slurry through the electrode slurry inlet so that the electrode slurry is deposited on both sides of the current collector (P120); a step of heating the heat source to dry the electrode slurry (P130); and a step of rolling the electrode slurry simultaneously with the start of the heating process or in the middle of the heating process (P140).

[0095] In the process of introducing the above current collector, the current collector may be a positive current collector or a negative current collector.

[0096] The above electrode slurry may be a positive electrode slurry or a negative electrode slurry. The electrode slurry may be prepared by mixing and stirring an electrode active material, a binder, a conductive agent, and a solvent.

[0097] According to one embodiment of the present invention, the process (P120) of injecting the electrode slurry for manufacturing an ultra-high loading electrode may be to inject the electrode slurry in an amount such that the loading amount of the electrode slurry to be laminated on one surface of the current collector is 600 mg / 25㎠ or more.

[0098] As described above, the electrode manufacturing method according to the present invention performs the drying and pressing processes simultaneously while completely filling the internal space of the cast (110) with the electrode slurry, so that even if the loading amount of the electrode slurry is increased to a very high level, the coating thickness of the electrode slurry is uniform. Accordingly, since there is no drying deviation or rolling density deviation depending on the horizontal position of the electrode, it is possible to manufacture an ultra-high loading electrode. Here, the loading amount of the electrode slurry of the ultra-high loading electrode may be 600 mg / 25㎠ or more, more specifically 700 mg / 25㎠ or more, more specifically 750 mg / 25㎠ to 1500 mg / 25㎠, and more specifically 800 mg / 25㎠ to 1200 mg / 25㎠, based on the loading amount of the electrode slurry laminated on one surface of the current collector.

[0099] Fig. 6 is a flowchart illustrating a method for manufacturing an electrode according to an exemplary embodiment of the present invention. Referring to Fig. 6, the method for manufacturing an electrode according to one embodiment may further include, prior to the current collector introduction process, a process (P150) of adjusting the volume of the internal space of the cast so that the volume of the internal space is appropriate for the specifications of the electrode to be manufactured.

[0100] The process of controlling the volume of the internal space (P150) may include a process of controlling the horizontal length, vertical length, and thickness direction length of the internal space of the cast to correspond to the horizontal length, vertical length, and thickness direction length of the electrode to be manufactured, respectively.

[0101] The process of heating the heat source (P130) is initiated when the internal space is completely filled with the electrode slurry. This is because if the heat source is heated when the internal space is not completely filled with the electrode slurry, the electrode cannot be manufactured to the desired specifications.

[0102]

[0103] The present invention has been described in more detail through the drawings and examples. However, the configurations described in the drawings or examples described in this specification are merely embodiments of the present invention and do not represent all of the technical ideas of the present invention. Therefore, it should be understood that various equivalents and modified examples may exist as of the time of this application.

Claims

1. A box-shaped cast having an internal space for accommodating electrode slurry and a current collector; an electrode slurry inlet for injecting the electrode slurry into the internal space; and a current collector inlet for injecting the current collector into the internal space; and In order to dry the electrode slurry filled inside the cast, a heat source configured to heat the cast is included, In order to laminate the electrode slurry on both sides of the current collector, the current collector inlet is located at the center of the first side of the cast in which the current collector inlet is formed, An electrode manufacturing device characterized in that the above cast is configured to press the electrode slurry in the direction of the current collector to roll the electrode slurry laminated on both sides of the current collector.

2. In claim 1, The above cast is, An electrode manufacturing device further comprising a first vent hole for discharging gas generated by vaporizing a solvent of an electrode slurry laminated on one surface of a current collector to the outside of the cast; and a second vent hole for discharging gas generated by vaporizing a solvent of an electrode slurry laminated on the other surface of the current collector to the outside of the cast.

3. In claim 1, The above cast is an electrode manufacturing device configured to independently control the horizontal length, vertical length, and thickness length of the internal space.

4. In claim 1, The above cast is an electrode manufacturing device configured to fix the entire body.

5. In claim 1, An electrode manufacturing device characterized in that the above cast is configured to fix the entire body in an upright state.

6. In claim 1, An electrode manufacturing device in which the internal space of the above cast is divided into first and second internal spaces by the input of a current collector.

7. In claim 1, An electrode manufacturing device further comprising a driving unit for moving the first and second pressing surfaces of the cast for pressing the electrode slurry laminated on both sides of the current collector in the pressing direction.

8. In claim 1, The above heat source is an electrode manufacturing device built into the above cast.

9. In claim 1, The above heat source is an electrode manufacturing device built into the first and second pressurized surfaces of the cast for rolling the electrode slurry laminated on both sides of the current collector.

10. In claim 1, An electrode manufacturing device comprising: a first electrode slurry inlet for injecting electrode slurry to be laminated on one surface of a current collector; and a second electrode slurry inlet for injecting electrode slurry to be laminated on the other surface of the current collector.

11. A method for manufacturing an electrode using an electrode manufacturing device according to any one of claims 1 to 10.

12. In claim 11, The process of inserting the current collector into the above current collector inlet; A process of injecting electrode slurry through the electrode slurry injection port so that the electrode slurry is deposited on both sides of the current collector; The process of heating the heat source to dry the electrode slurry; and An electrode manufacturing method comprising a process of rolling an electrode slurry simultaneously with the start of the above heating process or in the middle of the above heating process.

13. In claim 12, Before the above-mentioned process of putting the entire house into operation, An electrode manufacturing method further comprising a process of adjusting the volume of the internal space of the cast so that the volume of the internal space is appropriate for the specifications of the electrode to be manufactured.

14. In claim 12, An electrode manufacturing method characterized in that, during the above electrode slurry injection process, the electrode slurry is injected in an amount such that the loading amount of the electrode slurry to be laminated on one surface of the current collector is 600 mg / 25㎠ or more.

15. In claim 12, A method for manufacturing an electrode, characterized in that the process of heating the heat source is initiated when the internal space is completely filled with the electrode slurry.

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