Electrode manufacturing apparatus and electrode manufacturing method

Abstract

An electrode manufacturing apparatus according to one embodiment of the present disclosure comprises: a box-shaped mold (Cast) having an inner space for accommodating an electrode slurry and a current collector, an electrode slurry injection port for injecting the electrode slurry into the inner space, and a current collector introduction port for introducing the current collector into the inner space; and a heat source configured to heat the mold so as to dry the electrode slurry filled in the interior of the mold, in which the current collector introduction port is located at the center of a first surface of the mold in which the current collector introduction port is formed so as to stack the electrode slurry on both surfaces of the current collector, in which the mold is configured to compress the electrode slurry in the direction of the current collector, and rolling the electrode paste stacked on both sides of the current collector.

Description

Technical Field

[0001] This application claims the benefit of priority to Korean Patent Application No. 10-2023-0116626, filed on September 4, 2023, the disclosure of which is incorporated herein by reference.

[0002] The present disclosure relates to a manufacturing device and a manufacturing method for an electrode of a lithium secondary battery, and more particularly, to a manufacturing device and a manufacturing method for an ultra-high load electrode. Background Art

[0003] With the development of technology and the increase in demand for mobile devices, the demand for secondary batteries as energy sources has rapidly increased. Recently, it has been realized to use secondary batteries as power sources for electric vehicles (EV) and hybrid electric vehicles (HEV). Among such secondary batteries, lithium secondary batteries with high energy density, high discharge voltage and output stability are in high demand.

[0004] In particular, lithium secondary batteries used as power sources for electric vehicles (EVs) and hybrid electric vehicles (HEVs) are required to have characteristics of being able to provide high output in a short time while having high energy density.

[0005] Generally, lithium secondary batteries are manufactured by using materials capable of inserting and extracting lithium ions as negative and positive electrodes and filling an organic electrolyte or a polymer electrolyte between the positive and negative electrodes, and generating electrical energy through redox reactions when lithium ions are inserted and extracted at the positive and negative electrodes.

[0006] In this case, the negative electrode and the positive electrode include an electrode active material layer on a current collector of each electrode, and such an electrode can be manufactured by mixing and stirring the electrode active material with a binder, a solvent, a conductive material as needed, and a dispersant to prepare an electrode slurry, then coating the electrode slurry on the current collector using a slot die coater, and drying and rolling the electrode slurry.

[0007] Recently, as the demand for secondary batteries having high energy density increases, the demand for high-loaded, ultra-high-loaded electrodes having more electrode slurry loading on a current collector is increasing.

[0008] However, the conventional electrode manufacturing method as described above has such a problem that, as the load amount (thickness) of the electrode slurry increases, in the coating process, the electrode slurry discharged from the slot die coater becomes larger than the size of the target electrode due to high fluidity, and a collapse phenomenon occurs in which the load amount becomes smaller at the edge of the electrode slurry coating portion relative to the center in the width direction. In addition, in the conventional electrode manufacturing method, as the load amount (thickness) of the electrode slurry increases, in the drying process of the electrode slurry, crack generation caused by the difference in drying speed near the boundary between the electrode slurry coating portion and the uncoated portion where the electrode slurry is not coated may be aggravated.

[0009] Therefore, when manufacturing high-load or ultra-high-load electrodes, it is necessary to develop a new technology to solve the problems caused by conventional electrode manufacturing methods. Summary of the invention

[0010] Technical issues

[0011] An object of the present disclosure is to provide a novel electrode manufacturing apparatus and method that solves the problems of conventional electrode manufacturing methods when manufacturing a high-load electrode or an ultra-high-load electrode despite an increased loading amount.

[0012] Technical Solution

[0013] According to one embodiment of the present disclosure, an electrode manufacturing device is provided. The electrode manufacturing device includes: a box-shaped casting mold (Cast), the casting mold having an internal space for accommodating electrode slurry and a current collector, an electrode slurry injection port 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, the heat source is configured to heat the casting mold so as to dry the electrode slurry filled in the interior of the casting mold, the current collector inlet may be located at the center of the first surface of the casting mold where the current collector inlet is formed, so that the electrode slurry is stacked on both sides of the current collector, and the casting mold may be configured to compress the electrode slurry in the direction of the current collector so as to roll the electrode slurry stacked on both sides of the current collector.

[0014] In one embodiment, the mold may further include: a first exhaust hole (VentHole) for discharging gas generated by evaporation of the solvent of the electrode slurry stacked on one side of the current collector to the outside of the mold; and a second exhaust hole for discharging gas generated by evaporation of the solvent of the electrode slurry stacked on the other side of the current collector to the outside of the mold.

[0015] In one embodiment, the casting mold may be configured to independently adjust a length of the inner space in a horizontal direction, a length in a vertical direction, and a length in a thickness direction, respectively.

[0016] In one embodiment, the mold may be configured to fix the current collector.

[0017] In one embodiment, the mold may be configured to fix the current collector in an upright state.

[0018] In one embodiment, the inner space of the mold may be divided into a first inner space and a second inner space by the input of the current collector.

[0019] In one embodiment, the electrode manufacturing apparatus may further include a driving unit that moves a first pressing surface and a second pressing surface of the mold for compressing the electrode slurry stacked on both surfaces of the current collector in a compression direction.

[0020] In one embodiment, the heat source may be embedded in the mold.

[0021] In one embodiment, the heat source may be embedded in first and second pressing surfaces of the mold for rolling the electrode slurry stacked on both surfaces of the current collector.

[0022] In one embodiment, the electrode slurry injection port may include a first electrode slurry injection port for injecting electrode slurry to be stacked on one side of the current collector, and a second electrode slurry injection port for injecting electrode slurry to be stacked on the other side of the current collector.

[0023] According to another embodiment of the present disclosure, a method for manufacturing an electrode is provided, wherein the electrode manufacturing method can use the electrode manufacturing device to manufacture an electrode.

[0024] In one embodiment, the electrode manufacturing method may include: a process of inserting a current collector into the current collector inlet; a process of injecting electrode slurry through the electrode slurry injection port so that the electrode slurry is stacked 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 at the same time as the heating process starts or during the heating process.

[0025] The electrode manufacturing method according to one embodiment may further include, before the step of inserting the current collector, a step of adjusting the volume of the inner space of the casting mold so that the volume of the inner space of the casting mold is suitable for the size of the electrode to be manufactured.

[0026] In one embodiment, in the step of injecting the electrode slurry, the loading amount of the electrode slurry to be stacked on one surface of the current collector may be 600 mg / 25 cm 2 or more into the electrode slurry.

[0027] In one embodiment, the step of increasing the temperature of the heat source may be started in a state where the internal space is completely filled with the electrode slurry.

[0028] Beneficial Effects

[0029] According to one embodiment of the present disclosure, since the electrode slurry can be injected into a casting mold having a sealed internal space of a predetermined size, and the electrode slurry can be dried and compressed in a state where the internal space is completely filled with the electrode slurry, there is no possibility of slippage due to the fluidity of the electrode slurry, and an electrode of a desired size can be manufactured.

[0030] According to one embodiment of the present disclosure, since the electrode slurry can be compressed while being dried, even when the loading amount of the electrode slurry increases, cracks that may be caused by deviation in drying do not occur, thereby enabling the manufacture of an ultra-high loading electrode.

[0031] According to one embodiment of the present disclosure, by compressing the electrode slurry while drying it, the boiling point of the solvent in the electrode slurry can be lowered, and thus the drying temperature can be set lower than that of conventional electrode manufacturing equipment, thereby providing the effect of preventing changes in the physical properties of the electrode caused by a higher drying temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a front view of an electrode manufacturing apparatus according to an exemplary embodiment.

[0033] Figure 2 is a cross-sectional view of an electrode manufacturing apparatus according to an exemplary embodiment.

[0034] Figure 3 is a top view of an electrode manufacturing apparatus according to an exemplary embodiment.

[0035] Figure 4 is a view showing after the electrode slurry is injected into the inner space of the mold.

[0036] Figure 5 is a flowchart describing a method of manufacturing an electrode according to an exemplary embodiment of the present disclosure.

[0037] Figure 6 is a flowchart describing a method of manufacturing an electrode according to an exemplary embodiment of the present disclosure.

[0038] [Explanation of Reference Numbers]

[0039] 100: Electrode manufacturing device

[0040] 110: Casting

[0041] 111a: first internal space, 111b: second internal space

[0042] 112a, 112b: electrode slurry injection port

[0043] 113: Current collector inlet

[0044] 114a: first exhaust hole, 114b: second exhaust hole

[0045] 115: Side 1

[0046] 116: First pressing surface

[0047] 117: Second pressing surface

[0048] 120: Heat source

[0049] 130: Drive unit

[0050] 140: Temperature control unit

[0051] 150: Control Department

[0052] 11: Current collector

[0053] 12: Electrode slurry. DETAILED DESCRIPTION

[0054] Hereinafter, the present disclosure will be described in detail with reference to the accompanying drawings. Prior to this, the terms and words used in this specification and claims should not be interpreted as limited to general or dictionary terms, but should be interpreted according to the technical idea of ​​the present disclosure based on the principle that the inventor appropriately defines the terminology concept in order to best explain the present invention.

[0055] Therefore, it should be understood that the embodiments described herein and the configurations shown in the drawings are merely the most preferred embodiments of the present disclosure and are not intended to represent all technical ideas of the present disclosure, and that various equivalents and modifications that may replace them may exist upon submission.

[0056] Furthermore, in describing the present disclosure, a detailed description of the configuration or function of the related disclosure is omitted if it is considered that such a detailed description would obscure the subject matter of the present disclosure.

[0057] The present disclosure is shown in the embodiments to more fully explain the present disclosure to those of ordinary skill in the art, and therefore, for the sake of clarity, the shapes and sizes of the components in the drawings may be exaggerated, omitted or schematically shown. Therefore, the size or ratio of each component does not necessarily represent its actual size or ratio.

[0058] As used herein, the concept of stacking the electrode slurry includes filling the remaining space of the inner space of the mold except for the current collector with the electrode slurry in order to form the electrode slurry layer on the current collector.

[0059] (First Embodiment)

[0060] As a first embodiment, the present disclosure provides an electrode manufacturing apparatus.

[0061] Figure 1 is a front view of an electrode manufacturing apparatus according to an exemplary embodiment, Figure 2 is a cross-sectional view of an electrode manufacturing apparatus according to an exemplary embodiment, Figure 3 is a top view of an electrode manufacturing apparatus according to an exemplary embodiment, Figure 4 is a view showing after the electrode slurry is injected into the inner space of the mold.

[0062] Referring to these figures, the electrode manufacturing apparatus 100 according to the exemplary embodiment may include: a box-shaped casting mold 110 having internal spaces 111a and 111b; and a heat source 120. The electrode manufacturing apparatus 100 according to the exemplary embodiment may be configured to continuously compress the electrode slurry 12 being dried toward the current collector 11 when the current collector 11 and the electrode slurry 12 are put into the internal spaces 111a and 111b of the casting mold.

[0063] The electrode manufacturing device 100 according to an embodiment of the present disclosure is configured so that the drying and rolling processes can be performed simultaneously in a state where the electrode slurry 12 is fully filled in the internal space 111a, 111b having a predetermined volume. When manufacturing an electrode with such an electrode manufacturing device 100, there is no possibility of slippage due to the fluidity of the electrode slurry, and the electrode can be manufactured according to the size of the target electrode. In addition, since the coating thickness of the electrode slurry is uniform and since the drying process and the rolling process can be performed simultaneously, there is no risk of rupture, so that the electrode can be manufactured with a significantly increased load of the electrode slurry. In addition, since the boiling point of the solvent decreases as the electrode slurry is continuously pressurized during drying, the electrode can be dried at a lower drying temperature compared to conventional electrode drying methods, thereby preventing changes in the physical properties of the electrode caused by higher drying temperatures.

[0064] In one embodiment, the mold 110 may include: internal spaces 111a, 111b for accommodating the electrode slurry 12 and the current collector 11; electrode slurry injection ports 112a, 112b for injecting the electrode slurry 12 into the internal spaces 111a, 111b; and a current collector inlet 113 for injecting the current collector 11 into the internal spaces 111a, 111b.

[0065] The mold 110 may be configured to be sealable in order to dry and compress the electrode slurry filled therein, and the material of the mold is not particularly limited, but is preferably a metal material having excellent thermal conductivity in order to dry the electrode slurry.

[0066] The internal spaces 111a, 111b may have a rectangular parallelepiped shape corresponding to the shape of the electrode, and the mold 110 may be configured so that the lengths of the internal spaces 111a, 111b in the horizontal direction (X direction), the lengths in the vertical direction (Y direction), and the lengths in the thickness direction (Z direction) are independently adjustable. Therefore, the volumes of the internal spaces 111a, 111b can be appropriately adjusted according to the target size of the electrode to be manufactured.

[0067] like Figure 3 As shown, the current collector inlet 113 may be located at the center of the first surface 115 of the mold where the current collector inlet is formed, so that the electrode slurry 12 can be stacked on both surfaces of the current collector 11 .

[0068] When the current collector 11 is put into the internal spaces 111a and 111b of the mold through the current collector inlet 113, the internal spaces 111a and 111b can be divided into a first internal space 111a and a second internal space 111b by the current collector 11. The electrode slurry 12 injected into the first internal space 111a can be formed into 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 be formed into a second electrode active material layer 12b through a drying and rolling process.

[0069] Corresponding to the first internal space 111a and the second internal space 111b, there may be two or more electrode slurry injection ports 112a and 112b. In other words, the electrode slurry injection ports may include a first electrode slurry injection port 111a for injecting the electrode slurry to be stacked on one side 11a of the current collector and a second electrode slurry injection port 111b for injecting the electrode slurry to be stacked on the other side 12b of the current collector.

[0070] When electrode slurry 12 is injected into inner spaces 111a, 111b, mold 110 may be configured to fix current collector 11 in order to prevent current collector 11 from moving due to flow of electrode slurry. Mold 110 may include a current collector fixing member (not shown) to fix the current collector injected into the inner space.

[0071] The configuration of the current collector fixing member is not particularly limited, as long as it can inject the electrode slurry 12 and prevent the current collector from shaking during the drying and rolling process. Specifically, the current collector fixing member can be a clamp configured to clamp the two sides of the current collector. In addition, such a clamp may include: a first clamp installed around the current collector inlet 113; and a second clamp installed on the opposite side of the first face 115 where the current collector inlet 113 is formed, wherein the first clamp clamps one side of the current collector and the second clamp clamps the other side of the current collector to fix the current collector.

[0072] like Figure 2 and Figure 4 As shown, the mold 110 can be configured to fix the current collector 11 in a horizontal state, or can be configured to fix the current collector 11 in an upright state. As used herein, the horizontal state refers to a state in which the plane of the current collector 11 is horizontal to the bottom surface of the mold, and the upright state refers to a state in which the plane of the current collector 11 is vertical to the bottom surface of the mold 110.

[0073] When the mold 110 is configured to fix the current collector 11 in an upright state, when the electrode slurry is injected, the gravity direction (Y direction) of the electrode slurry 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. In other words, when the mold 110 is configured to fix the current collector in an upright state, even if the electrode slurry is injected on both sides of the current collector at the same time, the current collector will not be damaged by the weight of the electrode slurry, so the productivity of electrode manufacturing can be improved.

[0074] In addition, when the mold 110 is configured to fix the current collector 11 in a horizontal state, the gravity direction of the electrode slurry 12 is perpendicular to the plane of the current collector, so the weight of the electrode slurry 12 applies force to the current collector. In order to prevent the weight of the electrode slurry from damaging the current collector 11, when the electrode slurry is injected into the internal space of the mold, a method of injecting the electrode slurry into the first internal space and the second internal space in sequence can be considered, but in this case, the productivity will be reduced compared to the case where the current collector is configured to be fixed in an upright state.

[0075] The heat source 120 may be configured to heat the mold 110 so as to dry the electrode slurry 12 filled inside the mold. Figure 2 and Figure 4 , the heat source 120 can be embedded in the mold 110.

[0076] In addition, in order to dry and compress the electrode slurry filled inside, the mold 110 may be a hexahedral shape with six walls sealed and connected, and the portion where the heat source is embedded may be the first pressing surface 116 and the second pressing surface 117 for compressing the electrode slurry. When the heat source is embedded in the first pressing surface 1116 and the second pressing surface 117, it is preferred that the drying efficiency can be improved when drying and rolling are performed simultaneously. However, it is not limited thereto, and the heat source 120 may be embedded in the remaining four surfaces except the first pressing surface 1116 and the second pressing surface 117.

[0077] The heat source 120 is not limited in form or means as long as it can heat the mold 110 around the heat source, and as a specific example of the heat source 120, an induction heating coil may be provided.

[0078] The temperature of the heat source 120 may be controlled by the temperature control unit 140. Specifically, after the internal space of the mold 110 is completely filled with the electrode slurry, the temperature control unit 140 may control the heat source 120 to increase the temperature to dry the electrode slurry. When the temperature of the heat source increases, the mold is heated to increase the temperature of the electrode slurry. In addition, the temperature control unit 140 may control the heat source 120 to reduce the temperature of the heat source so that the mold becomes the temperature of room temperature after the drying of the electrode slurry is completed.

[0079] As the temperature of the heat source 120 increases and the electrode slurry is heated, the solvent in the electrode slurry is evaporated and removed to dry. In this case, in order to discharge the evaporated solvent to the outside of the mold, the mold 110 may be provided with exhaust holes 114a, 114b.

[0080] In one embodiment, the mold 110 may include: a first vent hole 114a for discharging gas generated by evaporation of the solvent of the electrode slurry stacked on one side 11a of the current collector to the outside of the mold; and a second vent hole 114b for discharging gas generated by evaporation of the solvent of the electrode slurry stacked on the other side 11b of the current collector to the outside of the mold.

[0081] The positions of the first exhaust hole 114a and the second exhaust hole 114b are not particularly limited, but in order to improve gas exhaust efficiency, they are preferably provided on the first pressing surface 116 and the second pressing surface 117 for compressing the electrode slurry among the six surfaces constituting the mold.

[0082] In order to roll the electrode slurry stacked on both sides of the current collector 11, the mold 110 is configured to compress the electrode slurry 12 toward the current collector 11. Figure 4In order to compress the electrode slurry filled in the inner space in the direction of the current collector (the direction of the arrow), the two surfaces constituting the mold 110 can be configured to move in the direction of the current collector. The two surfaces are opposite to each other, and the two surfaces for compressing the electrode slurry filled in the inner space of the mold are respectively referred to as the first pressing surface 116 and the second pressing surface 117 herein.

[0083] The electrode manufacturing device 100 according to the present disclosure may further include a driving unit 130 for moving the first pressing surface 116 and the second pressing surface 117 of the mold in the compression direction. The driving unit 130 may include a motor that provides a driving force to continuously move the first pressing surface 116 and the second pressing surface 117 during the drying of the electrode slurry. In addition, the driving unit may move the first pressing surface 116 and the second pressing surface 117 in the compression direction, but may keep the first pressing surface 116 and the second pressing surface 117 in this state after moving the first pressing surface 116 and the second pressing surface 117 by a set moving distance. In addition, after the electrode manufacturing is completed, the driving unit 130 may provide a driving force to return the first pressing surface 116 and the second pressing surface 117 to their original positions.

[0084] The electrode manufacturing apparatus 100 according to one embodiment may include a main control part 150 , which may be configured to control the volume of the inner space of the mold 110 , the temperature control part 140 , and the driving part 130 .

[0085] The electrode manufacturing device as described above is different from conventional electrode manufacturing equipment in that since the electrode slurry is injected into the inside of the mold having a sealed internal space of a predetermined size, there is no possibility of slipping due to the fluidity of the electrode slurry, so that an electrode of a desired size can be manufactured. In addition, since the electrode slurry can be compressed while drying, unlike conventional electrode manufacturing equipment, the generation of cracks can be prevented, and since the boiling point of the solvent of the electrode slurry can be lowered, the drying temperature can be set lower than that of conventional electrode manufacturing equipment.

[0086] (Second Embodiment)

[0087] As a second embodiment, the present disclosure provides an electrode manufacturing method.

[0088] The electrode manufacturing method according to the exemplary embodiment of the present disclosure is characterized by using the above-mentioned electrode manufacturing apparatus. Therefore, the effect of the above-mentioned electrode manufacturing apparatus is achieved.

[0089] Figure 5 is a flow chart describing a method for manufacturing an electrode according to an exemplary embodiment of the present disclosure. Figure 5According to one embodiment of the present disclosure, an electrode manufacturing method may include: a process P110 of inserting a current collector into a current collector inlet; a process P120 of injecting electrode slurry through an electrode slurry injection port so that the electrode slurry is stacked on both sides of the current collector; a process P130 of heating a heat source to dry the electrode slurry; and a process P140 of rolling the electrode slurry at the same time as or during the heating process.

[0090] In the step of adding the current collector, the current collector may be a positive electrode current collector or a negative electrode current collector.

[0091] The 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 material, and a solvent.

[0092] According to one embodiment of the present disclosure, in order to manufacture an ultra-high loading electrode, the step P120 of injecting the electrode slurry may be such that the loading amount of the electrode slurry to be stacked on one surface of the current collector is 600 mg / 25 cm 2 The process of injecting electrode slurry in an amount greater than or equal to 100%.

[0093] As described above, the electrode manufacturing method according to the present disclosure simultaneously performs the drying and compression processes in a state where the internal space of the mold 110 is completely filled with the electrode slurry, so that even when the loading amount of the electrode slurry is increased to a very high level, the coating thickness of the electrode slurry is uniform. Therefore, the drying and rolling density does not deviate according to the horizontal position of the electrode, thereby enabling the manufacture of ultra-high loaded electrodes. Here, based on the loading amount of the electrode slurry stacked on one side of the current collector, the loading amount of the electrode slurry of the ultra-high loaded electrode can be 600 mg / 25 cm 2 or more, more specifically 700mg / 25cm 2 or more, more specifically 750mg / 25cm 2 Up to 1500mg / 25cm 2 , more specifically 800mg / 25cm 2 Up to 1200mg / 25cm 2 .

[0094] Figure 6 is a flow chart describing a method for manufacturing an electrode according to an exemplary embodiment of the present disclosure. Figure 6 According to one embodiment, the electrode manufacturing method may further include a step P150 of adjusting the volume of the internal space of the mold so that the volume of the internal space is suitable for the size of the electrode to be manufactured before the step of adding the current collector.

[0095] The process P150 of adjusting the volume of the internal space may include the process of adjusting the horizontal length, vertical length and thickness length of the internal space of the mold corresponding to the horizontal length, vertical length and thickness length of the electrode to be manufactured, respectively.

[0096] The step P130 of raising the temperature of the heat source is started when the internal space is completely filled with the electrode slurry. This is because if the temperature of the heat source is raised when the internal space is not completely filled with the electrode slurry, it is impossible to manufacture an electrode with a desired size.

[0097] As described above, the present disclosure has been described in more detail with reference to the accompanying drawings and embodiments. Therefore, the configuration described herein or shown in the accompanying drawings is only one embodiment of the present disclosure and does not represent all the technical spirits of the present disclosure. It should be understood that various equivalents and modifications that can replace the embodiments and configurations may exist when submitting this application.

Claims

1. An electrode manufacturing device, comprising: A box-shaped casting mold (Cast), wherein the casting mold has an inner space for accommodating electrode slurry and current collector, an electrode slurry injection port for injecting the electrode slurry into the inner space, and a current collector injection port for injecting the current collector into the inner space; as well as a heat source configured to heat the casting mold so as to dry the electrode slurry filled in the interior of the casting mold, The current collector inlet is located at the center of the first surface of the mold on which the current collector inlet is formed, so that the electrode slurry is stacked on both surfaces of the current collector. The casting mold is configured to compress the electrode slurry toward the current collector so as to roll the electrode slurry stacked on both sides of the current collector.

2. The electrode manufacturing device according to claim 1, wherein the casting mold further comprises: A first vent hole for discharging gas generated by evaporation of the solvent of the electrode slurry stacked on one side of the current collector to the outside of the mold; and a second vent hole for discharging gas generated by evaporation of the solvent of the electrode slurry stacked on the other side of the current collector to the outside of the mold. 3 . The electrode manufacturing apparatus according to claim 1 , wherein the mold is configured to independently adjust a length of the internal space in a horizontal direction, a length in a vertical direction, and a length in a thickness direction, respectively. The electrode manufacturing apparatus according to claim 1 , wherein the mold is configured to fix the current collector. 5 . The electrode manufacturing apparatus according to claim 1 , wherein the mold is configured to fix the current collector in an upright state. 6 . The electrode manufacturing apparatus according to claim 1 , wherein the inner space of the mold is divided into a first inner space and a second inner space by the input of the current collector. 7 . The electrode manufacturing device according to claim 1 , further comprising a driving unit that moves a first pressing surface and a second pressing surface of the mold for compressing the electrode slurry stacked on both surfaces of the current collector in a compression direction.

8. The electrode manufacturing apparatus according to claim 1, wherein the heat source is embedded in the mold. 9 . The electrode manufacturing apparatus according to claim 1 , wherein the heat source is embedded in a first pressing surface and a second pressing surface of the mold for rolling the electrode slurry stacked on both surfaces of the current collector.

10. The electrode manufacturing device according to claim 1, wherein the electrode slurry injection port comprises a first electrode slurry injection port for injecting electrode slurry to be stacked on one side of the current collector, and a second electrode slurry injection port for injecting electrode slurry to be stacked on the other side of the current collector. 11 . A method for producing an electrode using the electrode producing apparatus according to claim 1 .

12. The electrode manufacturing method according to claim 11, comprising: The step of inserting a current collector into the current collector insertion port; A process of injecting electrode slurry through the electrode slurry injection port so that the electrode slurry is stacked on both sides of the current collector; a step of increasing the temperature of the heat source in order to dry the electrode slurry; and A step of rolling the electrode slurry at the same time as the temperature raising step or during the temperature raising step.

13. The electrode manufacturing method according to claim 12, further comprising before the step of adding the current collector: A process of adjusting the volume of the inner space of the casting mold so that the volume of the inner space of the casting mold is suitable for the size of the electrode to be manufactured.

14. The electrode manufacturing method according to claim 12, wherein in the step of injecting the electrode slurry, the loading amount of the electrode slurry to be stacked on one surface of the current collector is 600 mg / 25 cm 2 or more into the electrode slurry. 15 . The electrode manufacturing method according to claim 12 , wherein the step of raising the temperature of the heat source is started in a state where the internal space is completely filled with the electrode slurry.

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