Device for manufacturing an electrode

Abstract

Electrode manufacturing apparatus (10), comprising: an electrode sheet feed roller that transfers a pre-electrode sheet forming one surface and another surface; a position setting roller (500) adjacent to the electrode sheet feed roller, wherein the position setting roller (500) receives the pre-electrode sheet from the electrode sheet feed roller; a laminating roller (410) and a pressure roller (600) which receive the pre-electrode sheet from the position setting roller (500) and are facing each other; an active material feed roller facing the laminating roller (410) and providing an active material (53) for the laminating roller (410); and a heating device (700) that applies heat to a heating area of ​​the pre-electrode sheet, wherein the heating area is positioned between the electrode sheet feed roller and the position setting roller (500), wherein the pre-electrode sheet and the active material (53) are inserted into and ejected from the laminating roller (410) and the pressure roller (600).

Description

TECHNICAL AREA

[0001] The present disclosure relates to a device for manufacturing an electrode. BACKGROUND

[0002] An electrode used in a secondary battery can be formed by combining a binder and an active material with a sheet-shaped electrode current collector. The active material can be converted from a dry powder state and combined with the binder, and the thickness and bond strength of the active material can influence the performance of the secondary battery. SUMMARY

[0003] One object of embodiments of the present disclosure may be to provide a device for producing an electrode that combines an active material with a binder that is applied to an electrode current collector.

[0004] Another objective of embodiments of the present disclosure may be to provide a device for producing an electrode that sets the temperature of an active material attached to a pre-electrode sheet.

[0005] An electrode manufacturing device according to an embodiment of the present disclosure may comprise: an electrode sheet feed roller that transfers a pre-electrode sheet forming one surface and another surface; a positioning roller adjacent to the electrode sheet feed roller, the positioning roller receiving the pre-electrode sheet from the electrode sheet feed roller; a laminating roller and a pressure roller that receive the pre-electrode sheet from the positioning roller and are facing each other; an active material feed roller that faces the laminating roller and provides an active material to the laminating roller;and a heating device that applies heat to a heating area of ​​the pre-electrode sheet, wherein the heating area is positioned between the electrode sheet feed roller and the position setting roller, and the pre-electrode sheet and the active material can be inserted into and ejected from the laminating roller and the printing roller.

[0006] An electrode manufacturing apparatus according to an embodiment of the present disclosure may comprise: an electrode sheet feed roller that transfers a pre-electrode sheet forming one surface and another surface; a positioning roller adjacent to the electrode sheet feed roller, the positioning roller receiving the pre-electrode sheet from the electrode sheet feed roller; a laminating roller and a pressure roller that receive the pre-electrode sheet from the positioning roller and are facing each other; an active material feed roller facing the laminating roller and providing an active material to the laminating roller; a heating device that applies heat to a heating area of ​​the pre-electrode sheet, the heating area being positioned between the electrode sheet feed roller and the positioning roller;and an electrode thickness measuring device which measures the thickness of a post-electrode sheet formed by combining the pre-electrode sheet and the active material, and the pre-electrode sheet and the active material can be inserted into and ejected from the laminating roller and the printing roller to form the post-electrode sheet.

[0007] Electrode manufacturing may include: applying a binder to an electrode current collector to form a pre-electrode sheet; combining an active material with the binder; and testing a post-electrode sheet formed by combining the electrode current collector, the binder, and the active material. Combining the active material may include: heating the pre-electrode sheet by a heating device; measuring the temperature of the pre-electrode sheet; determining whether the temperature of the pre-electrode sheet is satisfactory; and rotating a laminating roller in contact with the active material to combine the active material with the binder.

[0008] According to embodiments of the present disclosure, a device for producing an electrode can be provided which combines an active material with a binder that is applied to an electrode current collector.

[0009] According to embodiments of the present disclosure, a device for producing an electrode can be provided which sets a temperature of an active material attached to a pre-electrode sheet.

[0010] A device for producing an electrode according to some embodiments of the present disclosure can be widely applied in fields of green technology, such as electric vehicles, battery charging stations and other battery-based solar and wind power generation.

[0011] A device for producing an electrode according to some embodiments of the present disclosure can be used in environmentally friendly electric vehicles, hybrid vehicles, etc., to prevent climate change by suppressing air pollution and greenhouse gas emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings, which are included to provide a further understanding of the revelation and which are incorporated into the revelation and form a part of the revelation, illustrate embodiments of the revelation and, together with the description, serve to explain the principle of the revelation. Fig. Figure 1 illustrates an electrode manufacturing equipment according to an embodiment of the present disclosure. Fig. 2 illustrates a Fig. 1 illustrated electrode manufacturing device. Fig. Figure 3 illustrates a cross-section of part of a sensor assembly and a [unclear] in Fig. 2 illustrated laminating roller along A1-A2. Fig. Figure 4 illustrates a laminating roller unit according to an embodiment of the present disclosure. Fig. Figure 5 illustrates an electrode manufacturing equipment that coats or laminates an active material onto two surfaces of an electrode sheet. Fig. Figure 6 is a block diagram of an electrode manufacturing device according to an embodiment of the present disclosure. Fig. Figure 7 is a block diagram of an electrode manufacturing equipment according to an embodiment of the present disclosure. Fig. Figure 8 is a flowchart illustrating electrode manufacturing. Fig. 9 is a flowchart that shows one in Fig. 8 illustrated active material combination step illustrated. Fig. 10 is a flowchart that shows one in Fig. 8 illustrated electrode sheet inspection step illustrated. Fig. Figure 11 is a flowchart illustrating an active material combination step that includes a step of heating a pre-electrode sheet. DETAILED DESCRIPTION OF THE EXECUTION FORMS

[0013] Extensive reference will now be made to embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. However, the following description is merely an example and is not intended to limit the present disclosure to any specific implementation.

[0014] Fig. Figure 1 illustrates an electrode manufacturing equipment according to an embodiment of the present disclosure. Fig. 2 illustrates a Fig. 1 illustrated electrode manufacturing device.

[0015] With reference to Fig. 1 and Fig. 2. An electrode manufacturing equipment 1 may contain an electrode manufacturing device 10. For example, the electrode manufacturing equipment 1 may contain a first electrode manufacturing device 11. The electrode manufacturing device 10 may contain or specify at least one of the first electrode manufacturing device 11 or a second electrode manufacturing device 12 (see Fig. 5).

[0016] The electrode manufacturing device 10 can transfer an electrode sheet 50. For example, the electrode manufacturing device 10 can include an electrode transfer roller assembly 100. The electrode transfer roller assembly 100 can transfer the electrode sheet 50.

[0017] The electrode transfer roller assembly 100 can contain a plurality of electrode transfer rollers 101, ..., 113. For example, the electrode transfer roller assembly 100 can contain a first electrode transfer roller 101, a second electrode transfer roller 102, a third electrode transfer roller 103, a fourth electrode transfer roller 104, a fifth electrode transfer roller 105, a sixth electrode transfer roller 106, a seventh electrode transfer roller 107, an eighth electrode transfer roller 108, a ninth electrode transfer roller 109, a tenth electrode transfer roller 110, an eleventh electrode transfer roller 111, a twelfth electrode transfer roller 112, and a thirteenth electrode transfer roller 113.

[0018] The electrode sheet 50 can form a shape that extends in a longitudinal direction. For example, the longitudinal direction of the electrode sheet 50 can be the direction in which the electrode sheet 50 is transferred by the electrode transfer roller arrangement 100.

[0019] The electrode sheet 50 can have a sheet shape. For example, the electrode sheet 50 can form two surfaces. For example, an upper surface 50t of the electrode sheet can form an upper surface of the electrode sheet 50. For example, a lower surface 50b of the electrode sheet can form a lower surface of the electrode sheet 50.

[0020] The electrode sheet 50 can contain an electrode current collector 51. The electrode current collector 51 can be made of a metal. For example, the electrode current collector 51 can be made of at least one copper (Cu) or aluminum (Al) component. The electrode current collector 51 can have a leaf shape.

[0021] The electrode sheet 50 can contain a binder 52. The binder 52 can be applied to one or two surfaces of the electrode current collector 51. For example, the binder 52 can be coated or laminated onto the electrode current collector 51.

[0022] For example, the binder 52 can form at least one of the upper surface 50t or the lower surface 50b of the electrode sheet. The electrode current collector 51 and the binder 52 can form a layer. In other words, the binder 52 can be laminated onto the electrode current collector 51.

[0023] The electrode sheet 50 can contain an active material 53. The active material 53 can contain at least one of lithium (Li), cobalt (Co), oxygen (O), manganese (Mn), nickel (Ni), aluminum (Al), phosphorus (P) or iron (Fe).

[0024] The active material 53 can be combined with the binder 52. For example, the active material 53 can be coated or laminated onto the binder 52. When the active material 53 is combined with the binder 52, the active material 53 can form at least one of the upper surface 50t or the lower surface 50b of the electrode sheet.

[0025] For example, the electrode current collector 51, the binder 52 and the active material 53 can form a layer.

[0026] The electrode manufacturing device 10 can include an active material transfer roller assembly 200. The active material transfer roller assembly 200 can include a variety of active material transfer rollers 201, 202, 203 and 204.

[0027] For example, the active material transfer roller arrangement 200 can include a first active material transfer roller 201, a second active material transfer roller 202, a third active material transfer roller 203 and a fourth active material transfer roller 204.

[0028] The active material transfer rollers 201, 202, 203 and 204 may contain or specify at least one of the first active material transfer roller 201, the second active material transfer roller 202, the third active material transfer roller 203 or the fourth active material transfer roller 204.

[0029] The active material 53 can be introduced into the active material transfer rollers 201, 202, 203, and 204. For example, the active material 53 introduced into the active material transfer rollers 201, 202, 203, and 204 can be in a dry powder state. For example, the active material 53 in powder form can be introduced between the first active material transfer roller 201 and the second active material transfer roller 202.

[0030] The first active material transfer roller 201 and the second active material transfer roller 202 can change at least one of the state or form of the active material. For example, the first active material transfer roller 201 and the second active material transfer roller 202 can apply pressure to the active material 53 in powder form.

[0031] For example, the first active material transfer roller 201 and the second active material transfer roller 202 can convert the active material 53 in powder state into the active material 53 in a film state.

[0032] The first active material transfer roller 201 and the second active material transfer roller 202 can face each other. A rotation axis of the first active material transfer roller 201 and a rotation axis of the second active material transfer roller 202 can be parallel to each other.

[0033] The first active material transfer roller 201 and the second active material transfer roller 202 can rotate in opposite directions. The circumferential speed of an outer circumferential surface of the first active material transfer roller 201 can differ from the circumferential speed of an outer circumferential surface of the second active material transfer roller 202.

[0034] For example, the circumferential speed of the outer circumferential surface of the second active material transfer roller 202 can be greater than the circumferential speed of the outer circumferential surface of the first active material transfer roller 201. If the radius of the first active material transfer roller 201 and the radius of the second active material transfer roller 202 are the same, the angular velocity of the second active material transfer roller 202 can be greater than the angular velocity of the first active material transfer roller 201.

[0035] For example, if the circumferential speed of the outer circumferential surface of the second active material transfer roller 202 is greater than the circumferential speed of the outer circumferential surface of the first active material transfer roller 201, a shear force can act on the active material 53. As a result, the active material 53 can rotate in the film state while in contact with the second active material transfer roller 202.

[0036] The second active material transfer roller 202 and the third active material transfer roller 203 can face each other. The axis of rotation of the second active material transfer roller 202 and an axis of rotation of the third active material transfer roller 203 can be parallel to each other.

[0037] The first active material transfer roller 201, the second active material transfer roller 202, and the third active material transfer roller 203 can be arranged sequentially. For example, the second active material transfer roller 202 can be positioned between the first active material transfer roller 201 and the third active material transfer roller 203.

[0038] The second active material transfer roller 202 and the third active material transfer roller 203 can rotate in opposite directions. The circumferential speed of the outer circumferential surface of the second active material transfer roller 202 can differ from the circumferential speed of an outer circumferential surface of the third active material transfer roller 203.

[0039] For example, the circumferential speed of the outer circumferential surface of the third active material transfer roller 203 can be greater than the circumferential speed of the outer circumferential surface of the second active material transfer roller 202. If the radius of the second active material transfer roller 202 and the radius of the third active material transfer roller 203 are the same, the angular velocity of the third active material transfer roller 203 can be greater than the angular velocity of the second active material transfer roller 202.

[0040] For example, if the circumferential speed of the outer circumferential surface of the third active material transfer roller 203 is greater than the circumferential speed of the outer circumferential surface of the second active material transfer roller 202, a shear force can act on the active material 53 between the second active material transfer roller 202 and the third active material transfer roller 203. As a result, the active material 53 in its film state can be separated from the second active material transfer roller 202 and rotate while in contact with the third active material transfer roller 203.

[0041] The second active material transfer roller 202 and the third active material transfer roller 203 can apply pressure to the active material 53 in the film state. For example, the thickness of the active material 53 rotating while in contact with the third active material transfer roller 203 can be less than the thickness of the active material 53 rotating while in contact with the second active material transfer roller 202.

[0042] The third active material transfer roller 203 and the fourth active material transfer roller 204 can face each other. An axis of rotation of the third active material transfer roller 203 and an axis of rotation of the fourth active material transfer roller 204 can be parallel to each other.

[0043] The second active material transfer roller 202, the third active material transfer roller 203, and the fourth active material transfer roller 204 can be arranged sequentially. For example, the third active material transfer roller 203 can be positioned between the second active material transfer roller 202 and the fourth active material transfer roller 204.

[0044] The third active material transfer roller 203 and the fourth active material transfer roller 204 can rotate in opposite directions. The circumferential speed of an outer circumferential surface of the fourth active material transfer roller 204 can differ from the circumferential speed of the outer circumferential surface of the third active material transfer roller 203.

[0045] For example, the circumferential speed of the outer circumferential surface of the fourth active material transfer roller 204 can be greater than the circumferential speed of the outer circumferential surface of the third active material transfer roller 203. If the radius of the third active material transfer roller 203 and the radius of the fourth active material transfer roller 204 are equal, the angular speed of the fourth active material transfer roller 204 can be greater than the angular speed of the third active material transfer roller 203.

[0046] For example, if the circumferential speed of the outer circumferential surface of the fourth active material transfer roller 204 is greater than the circumferential speed of the outer circumferential surface of the third active material transfer roller 203, a shear force can act on the active material 53 between the third active material transfer roller 203 and the fourth active material transfer roller 204. As a result, the active material 53 in its film state can be separated from the third active material transfer roller 203 and rotate while in contact with the fourth active material transfer roller 204.

[0047] The third active material transfer roller 203 and the fourth active material transfer roller 204 can apply pressure to the active material 53 in the film state. For example, the thickness of the active material 53 rotating while in contact with the fourth active material transfer roller 204 can be less than the thickness of the active material 53 rotating while in contact with the third active material transfer roller 203.

[0048] The electrode manufacturing device 10 can include a sensor assembly 300. The sensor assembly 300 can include a roller sensor unit 310 and an active material sensor unit 320.

[0049] The sensor arrangement 300 can be oriented towards the active material transfer roller arrangement 200. For example, the sensor arrangement 300 can measure a distance between the active material transfer roller arrangement 200 and the sensor arrangement 300.

[0050] For example, the roller sensor unit 310 can measure a distance between the fourth active material transfer roller 204 and the roller sensor unit 310. For example, the roller sensor unit 310 can measure a distance between the outer circumferential surface of the fourth active material transfer roller 204 and the roller sensor unit 310.

[0051] The roller sensor unit 310 and the active material sensor unit 320 can measure the thickness of the active material 53 in contact with the fourth active material transfer roller 204. For example, the active material sensor unit 320 can measure the distance between the active material sensor unit 320 and the outer circumferential surface of the fourth active material transfer roller 204.

[0052] The active material sensor unit 320 can then measure a distance between the active material 53 in contact with the outer circumferential surface of the fourth active material transfer roller 204 and the active material sensor unit 320.

[0053] The distance between the active material sensor unit 320 and the outer circumferential surface of the fourth active material transfer roller 204 can be referred to as the "roller distance". The distance between the active material 53 in contact with the outer circumferential surface of the fourth active material transfer roller 204 and the active material sensor unit 320 can be referred to as the "active material distance". The thickness of the active material 53 in contact with the outer circumferential surface of the fourth active material transfer roller 204 can be a difference between the active material distance and the roller distance.

[0054] The position of the roller sensor unit 310 can be set such that the distance between the roller sensor unit 310 and the fourth active material transfer roller 204 is the roller spacing. If the distance measured by the roller sensor unit 310 differs from the roller spacing, the position of the fourth active material transfer roller 204 can be changed.

[0055] The electrode manufacturing device 10 can contain a laminating roller unit 400. The laminating roller unit 400 can contain a laminating roller 410.

[0056] The laminating roller 410 and the fourth active material transfer roller 204 can face each other. The rotational axis of the laminating roller 410 and the rotational axis of the fourth active material transfer roller 204 can be parallel to each other.

[0057] The laminating roller 410 and the fourth active material transfer roller 204 can rotate in opposite directions. The peripheral speed of an outer circumferential surface of the laminating roller 410 can differ from the peripheral speed of the outer circumferential surface of the fourth active material transfer roller 204.

[0058] For example, the peripheral speed of the outer circumferential surface of the laminating roller 410 can be greater than the peripheral speed of the outer circumferential surface of the fourth active material transfer roller 204. If the radius of the laminating roller 410 and the radius of the fourth active material transfer roller 204 are the same, the angular speed of the laminating roller 410 can be greater than the angular speed of the fourth active material transfer roller 204.

[0059] For example, if the circumferential speed of the outer circumferential surface of the laminating roller 410 is greater than the circumferential speed of the outer circumferential surface of the fourth active material transfer roller 204, a shear force can act on the active material 53 between the fourth active material transfer roller 204 and the laminating roller 410. As a result, the active material 53 in its film state can be separated from the fourth active material transfer roller 204 and rotate while in contact with the laminating roller 410.

[0060] In other words, the fourth active material transfer roller 204 can supply the active material 53 in film form to the laminating roller 410. In this context, the fourth active material transfer roller 204 can be referred to as the "active material feed roller".

[0061] The laminating roller 410 and the fourth active material transfer roller 204 can apply pressure to the active material 53 in the film state. For example, the thickness of the active material 53 rotating while in contact with the laminating roller 410 can be less than the thickness of the active material 53 rotating while in contact with the fourth active material transfer roller 204.

[0062] The laminating roller 410 can provide heat to the active material 53. For example, the outer circumferential surface of the laminating roller 410 can transfer heat to the active material 53. For example, the laminating roller 410 can contain a heating element (not shown). For example, the heating element (not shown) contained in the laminating roller 410 can provide heat to the outer circumferential surface of the laminating roller 410.

[0063] The electrode manufacturing device 10 can include a pressure roller 600. The pressure roller 600 can face the laminating roller 410. The rotational axis of the pressure roller 600 and the rotational axis of the laminating roller 410 can be parallel to each other.

[0064] The fourth active material transfer roller 204, the laminating roller 410, and the pressure application roller 600 can be arranged sequentially. For example, the laminating roller 410 can be positioned between the fourth active material transfer roller 204 and the pressure application roller 600.

[0065] The pressure roller 600 and the laminating roller 410 can rotate in opposite directions. The peripheral speed of an outer circumferential surface of the pressure roller 600 can be the same as the peripheral speed of the outer circumferential surface of the laminating roller 410.

[0066] The electrode sheet 50 and the active material 53 can be inserted between the pressure roller 600 and the laminating roller 410. The pressure roller 600 and the laminating roller 410 can apply pressure to the electrode sheet 50 and the active material 53.

[0067] The electrode sheet 50, which is inserted between the pressure roller 600 and the laminating roller 410, can be referred to as a "pre-electrode sheet".

[0068] The active material 53, which is inserted between the pressure roller 600 and the laminating roller 410, can be combined with the pre-electrode sheet 50, which is inserted between the pressure roller 600 and the laminating roller 410.

[0069] For example, the active material 53 in film form, which is inserted between the pressure roller 600 and the laminating roller 410, can be combined with the binder 52 of the pre-electrode sheet 50, which is inserted between the pressure roller 600 and the laminating roller 410.

[0070] The outer circumferential surface of the pressure roller 600 can be made of an elastic material. For example, the outer circumferential surface of the pressure roller 600 can be made of a material containing silicon. For example, the outer circumferential surface of the pressure roller 600 can be made of a material containing a polymer.

[0071] The electrode manufacturing device 10 can include a positioning roller 500. The positioning roller 500 can transfer the electrode sheet 50. The positioning roller 500 can transfer the electrode sheet 50, which is transferred by the eighth electrode transfer roller 108, to the pressure roller 600.

[0072] While the electrode sheet 50 is transferred from the eighth electrode transfer roller 108 to the position setting roller 500 and from the position setting roller 500 to the laminating roller 410, the electrode sheet 50 can be in contact with the active material 53, which is in contact with the laminating roller 410. In this context, the eighth electrode transfer roller 108 can be referred to as the "electrode sheet feed roller".

[0073] The active material 53, which is positioned on the laminating roller 410, and the binder 52 of the electrode sheet 50 can pass between the laminating roller 410 and the pressure roller 600 and be combined with each other.

[0074] For example, the pre-electrode sheet 50 and the active material 53 can be inserted between the laminating roller 410 and the pressure roller 600. The pre-electrode sheet 50 and the active material 53 can be combined with each other.

[0075] Before, for example, the active material 53, which is positioned on the laminating roller 410, and the binder 52 of the pre-electrode sheet 50 are combined, the binder 52 can form a lower surface 50b of the pre-electrode sheet.

[0076] For example, if the active material 53, which is positioned on the laminating roller 410, and the binder 52 of the pre-electrode sheet 50 are combined, the active material 53 can form a lower surface 50b of the electrode sheet of the post-electrode sheet 50.

[0077] Depending on the position of the positioning roller 500, the length of the pre-electrode sheet 50 in contact with the laminating roller 410 can vary. The position of the positioning roller 500 can be adjusted. For example, the position of the positioning roller 500 can be adjusted to optimize the length of the pre-electrode sheet 50 in contact with the laminating roller 410.

[0078] The sensor assembly 300 can include a temperature sensor unit 330. The temperature sensor unit 330 can measure the temperature of the pre-electrode sheet 50, which is in contact with the laminating roller 410.

[0079] The electrode manufacturing device 10 can include a heating device 700. The heating device 700 can be positioned between the electrode transfer roller assembly 100 and the position setting roller 500. For example, the heating device 700 can be positioned between the eighth electrode transfer roller 108 and the position setting roller 500.

[0080] The heating device 700 can provide heat to the pre-electrode sheet 50, which is transferred to the position setting roller 500. For example, the heating device 700 can provide infrared or near-infrared light to the pre-electrode sheet 50. For example, the heating device 700 can include at least one light-emitting diode (LED), a laser, or a heating lamp.

[0081] For example, the heating device 700 can increase the temperature of the pre-electrode sheet 50. If, for example, heat is provided to the pre-electrode sheet 50, the temperature of the binder 52 of the pre-electrode sheet 50 can be a temperature suitable for combining the binder 52 and the active material 53.

[0082] For example, the heating device 700 can face a surface of the pre-electrode sheet 50. For example, the heating device 700 can face the binder 52 of the pre-electrode sheet 50. For example, the heating device 700 can provide heat to the binder 52 of the pre-electrode sheet 50.

[0083] A section of the pre-electrode sheet 50, positioned between the position setting roller 500 and the eighth electrode transfer roller 108, can be referred to as the "heating section". For example, the heating device 700 can provide heat to the heating section.

[0084] The temperature sensor unit 330 can measure at least one temperature of the pre-electrode sheet 50, which is in contact with the laminating roller 410, or a temperature of the heating area.

[0085] If the heating device 700 contains the heating lamp, a distance between the heating device 700 and the heating area can be set to control the temperature of the pre-electrode sheet 50. If the heating device 700 contains the laser, an output of the heating device 700 can be set to control the temperature of the pre-electrode sheet 50.

[0086] The electrode manufacturing equipment 1 may include an electrode thickness measuring device 20. For example, the electrode manufacturing equipment 1 may include a first electrode thickness measuring device 21. The electrode thickness measuring device 20 may include or specify at least one of the first electrode thickness measuring devices 21 or a second electrode thickness measuring device 22 (see Fig. 5).

[0087] The electrode thickness measuring device 20 can measure at least one of the thicknesses or thickness profiles of the downstream electrode sheet 50. For example, the first electrode thickness measuring device 21 can measure at least one of the thicknesses or thickness profiles of the upstream electrode sheet 50 in which the active material 53 is formed on a surface of the upstream electrode sheet 50.

[0088] Fig. Figure 3 illustrates a cross-section of part of a sensor assembly and a [unclear] in Fig. 2 illustrated laminating roller along A1-A2.

[0089] With reference to Fig. 2 and Fig. 3. The laminating roller 410 can have a cylindrical shape. The laminating roller 410 can form a shape that extends in a longitudinal direction. The longitudinal direction of the laminating roller 410 can be parallel to a rotational axis of the laminating roller 410.

[0090] For example, the roller sensor unit 310 can face the laminating roller 410. The roller sensor unit 310 can measure a distance between the laminating roller 410 and the roller sensor unit 310.

[0091] For example, the active material sensor unit 320 can face the active material 53, which is in contact with the laminating roller 410. The active material sensor unit 320 can measure a distance between the active material sensor unit 320 and the active material 53.

[0092] The roller sensor unit 310 can contain a variety of roller sensors 311, 312, and 313. The variety of roller sensors 311, 312, and 313 can be arranged longitudinally along the laminating roller 410.

[0093] For example, the roller sensor unit 310 can contain a first roller sensor 311, a second roller sensor 312, and a third roller sensor 313. The roller sensors 311, 312, and 313 can contain or specify at least one of the first roller sensor 311, the second roller sensor 312, or the third roller sensor 313.

[0094] The active material sensor unit 320 can contain a variety of active material sensors 321, 322, and 323. For example, the variety of active material sensors 321, 322, and 323 can be arranged in the longitudinal direction of the laminating roller 410.

[0095] For example, the active material sensor unit 320 can contain a first active material sensor 321, a second active material sensor 321, and a third active material sensor 323. The active material sensors 321, 322, and 323 can contain or specify at least one of the first active material sensor 321, the second active material sensor 321, or the third active material sensor 323.

[0096] The roller sensor unit 310 and the active material sensor unit 320 can be arranged such that the laminating roller 410 is positioned between the roller sensor unit 310 and the active material sensor unit 320.

[0097] For example, the first roller sensor 311 and the first active material sensor 321 can be arranged such that the laminating roller 410 is positioned between them. For example, the first roller sensor 311 and the first active material sensor 321 can be oriented towards a first point on the rotation axis of the laminating roller 410.

[0098] For example, the second roller sensor 312 and the second active material sensor 322 can be arranged such that the laminating roller 410 is positioned between them. For example, the second roller sensor 312 and the second active material sensor 322 can be oriented towards a second point on the rotation axis of the laminating roller 410.

[0099] For example, the third roller sensor 313 and the third active material sensor 323 can be arranged such that the laminating roller 410 is positioned between them. For example, the third roller sensor 313 and the third active material sensor 323 can be oriented towards a third point on the rotation axis of the laminating roller 410.

[0100] The sensor arrangement 300 can measure the thickness of the active material 53 that is in contact with the laminating roller 410. For example, the sensor arrangement 300 can measure a thickness profile of the active material 53 that is in contact with the laminating roller 410. For example, the sensor arrangement 300 can measure a thickness profile (depth profile) of the active material 53 in the film state that is in contact with the laminating roller 410, based on the rotational axis of the laminating roller 410.

[0101] Fig. Figure 4 illustrates a laminating roller unit according to an embodiment of the present disclosure.

[0102] With reference to Fig. 3 and Fig. 4. The laminating roller unit 400 can contain the laminating roller 410. The laminating roller 410 can have a shape that extends along the axis of rotation of the laminating roller 410. The longitudinal direction of the laminating roller 410 can be the same as a longitudinal direction of the axis of rotation of the laminating roller 410.

[0103] The laminating roller unit 400 can include a coupling shaft 420. A plurality of coupling shafts 420 can be provided. For example, the laminating unit 400 can include a first coupling shaft 420a and a second coupling shaft 420b. The coupling shaft 420 can include or specify at least one of the first coupling shaft 420a or the second coupling shaft 420b.

[0104] The coupling shaft 420 can be connected or coupled to the laminating roller 410. For example, a rotational axis of the coupling shaft 420 can be connected or coupled to the rotational axis of the laminating roller 410.

[0105] For example, the first coupling shaft 420a can be connected or coupled to one end of the laminating roller 410. For example, a rotational axis of the first coupling shaft 420a can be connected or coupled to one end of the rotational axis of the laminating roller 410.

[0106] For example, the second coupling shaft 420b can be connected or coupled to another end of the laminating roller 410. For example, a rotational axis of the second coupling shaft 420b can be connected or coupled to another end of the rotational axis of the laminating roller 410.

[0107] The laminating roller unit 400 can contain an inner housing 430. The inner housing 430 can accommodate the coupling shaft 420. The coupling shaft 420 can be rotatably coupled to the inner housing 430.

[0108] A variety of inner housings 430 can be provided. For example, the laminating roller unit 400 can contain a first inner housing 430a and a second inner housing 430b. The inner housing 430 can contain or specify at least one of the first inner housing 430a or the second inner housing 430b.

[0109] For example, the first inner housing 430a can accommodate the first coupling shaft 420a. For example, the first coupling shaft 420a can be rotatably coupled to the first inner housing 430a.

[0110] For example, the second inner housing 430b can accommodate the second coupling shaft 420b. For example, the second coupling shaft 420b can be rotatably coupled to the second inner housing 430b.

[0111] The laminating roller unit 400 can include an inner housing motion device 440. The inner housing motion device 440 can be connected or coupled to the inner housing 430.

[0112] A variety of internal housing motion devices 440 may be provided. For example, the laminating roller unit 400 may include a first internal housing motion device 440a and a second internal housing motion device 440b. The internal housing motion device 440 may include or specify at least one of the first internal housing motion device 440a or the second internal housing motion device 440b.

[0113] For example, the first inner housing motion device 440a can be connected or coupled to the first inner housing 430a. For example, the second inner housing motion device 440b can be connected or coupled to the second inner housing 430b.

[0114] The inner housing motion device 440 can include an inner housing motion device body 441 and an inner housing motion device rod 442. The inner housing motion device rod 442 can be movably coupled to the inner housing motion device body 441.

[0115] One end of the inner housing motion device rod 442 can be connected or coupled to the inner housing motion device body 441, and another end of the inner housing motion device rod 442 can be connected or coupled to the inner housing 430.

[0116] The inner housing motion device 441 can provide a driving force for the inner housing motion device rod 442. When the inner housing motion device rod 442 receives the driving force from the inner housing motion device 441, the inner housing 430 can move in a radial direction along the coupling shaft 420.

[0117] If the inner housing 430 moves in the radial direction of the coupling shaft 420, the coupling shaft 420 can move in a radial direction of the coupling shaft 420.

[0118] The coupling shaft 420 can rotate in the same way as the laminating roller 410. For example, the coupling shaft 420 and the laminating roller 410 can transmit a rotational force to each other. For example, the coupling shaft 420 can transmit the rotational force to the laminating roller 410. For example, the laminating roller 410 can transmit the rotational force to the coupling shaft 420.

[0119] For example, the axis of rotation of the coupling shaft 420 and the axis of rotation of the laminating roller 410 can form a coaxial axis. Alternatively, the axis of rotation of the coupling shaft 420 and the axis of rotation of the laminating roller 410 can form an angle. In other words, the coupling shaft 420 can be coupled to the laminating roller 410 in such a way as to form an angle with it.

[0120] For example, a gear contained in the coupling shaft 420 can be coupled to a gear formed on the laminating roller 410. Therefore, even if the axis of rotation of the coupling shaft 420 and the axis of rotation of the laminating roller 410 form an angle, the rotational force can be transmitted between the coupling shaft 420 and the laminating roller 410.

[0121] When the coupling shaft 420 moves in the radial direction, the axis of rotation of the laminating roller 410 can move or tilt. When the axis of rotation of the laminating roller 410 moves or tilts, the shape of the gap between the laminating roller 410 and the fourth active material transfer roller 204 can change.

[0122] The first inner housing motion device 440a can include a first inner housing motion device body 441a and a first inner housing motion device rod 442a. The second inner housing motion device 440b can include a second inner housing motion device body 441b and a second inner housing motion device rod 442b.

[0123] The inner housing motion device body 441 can contain or specify at least one of the first inner housing motion device body 441a or the second inner housing motion device body 441b.

[0124] The inner housing motion device rod 442 can include or specify at least one of the first inner housing motion device rod 442a or the second inner housing motion device rod 442b.

[0125] The laminating roller unit 400 can include an outer housing 450. The outer housing 450 can be adjacent to the inner housing 430. The outer housing 450 can accommodate the coupling shaft 420. The coupling shaft 420 can be rotatably coupled to the outer housing 450.

[0126] A variety of outer housings 450 can be provided. For example, the laminating roller unit 400 can include a first outer housing 450a and a second outer housing 450b. The outer housing 450 can contain or specify at least one of the first outer housing 450a or the second outer housing 450b.

[0127] The first inner housing 430a can be positioned between the first outer housing 450a and the laminating roller 410. The second inner housing 430b can be positioned between the second outer housing 450b and the laminating roller 410.

[0128] The first outer housing 450a can accommodate the first coupling shaft 420a. For example, the first coupling shaft 420a can be rotatably coupled to the first inner housing 430a and the first outer housing 450a.

[0129] The second outer housing 450b can accommodate the second coupling shaft 420b. For example, the second coupling shaft 420b can be rotatably coupled to the second inner housing 430b and the second outer housing 450b.

[0130] The laminating roller unit 400 can include an outer housing motion device 460. The outer housing motion device 460 can be connected or coupled to the outer housing 450.

[0131] A variety of outer casing motion devices 460 may be provided. For example, the laminating roller unit 400 may include a first outer casing motion device 460a and a second outer casing motion device 460b. The outer casing motion device 460 may include or specify at least one of the first outer casing motion device 460a or the second outer casing motion device 460b.

[0132] For example, the first outer casing motion device 460a can be connected or coupled to the first outer casing 450a. For example, the second outer casing motion device 460b can be connected or coupled to the second outer casing 450b.

[0133] The outer casing motion device 460 can include an outer casing motion device body 461 and an outer casing motion device rod 462. The outer casing motion device rod 462 can be movably coupled to the outer casing motion device body 461.

[0134] One end of the outer casing motion device rod 462 can be connected or coupled to the outer casing motion device body 461, and another end of the outer casing motion device rod 462 can be connected or coupled to the outer casing 450.

[0135] The outer casing motion device body 461 can provide a driving force for the outer casing motion device rod 462. When the outer casing motion device rod 462 receives the driving force from the outer casing motion device body 461, the outer casing 450 can move in the radial direction of the coupling shaft 420.

[0136] The outer casing motion device body 461 can contain or specify at least one of a first outer casing motion device body 461a or a second outer casing motion device body 461b.

[0137] The outer casing motion device rod 462 can include or specify at least one of a first outer casing motion device rod 462a or a second outer casing motion device rod 462b.

[0138] The laminating roller unit 400 can include a rotary drive unit (not shown). The rotary drive unit (not shown) can rotate the laminating roller 410. For example, the laminating roller 410 can receive a drive force from the rotary drive unit (not shown) and rotate around the axis of rotation of the laminating roller 410.

[0139] For example, the rotary drive unit (not shown) can provide a rotational force to the coupling shaft 420. When the coupling shaft 420 receives the rotational force from the rotary drive unit (not shown), the coupling shaft 420 can rotate about its axis of rotation. When the coupling shaft 420 rotates, the laminating roller 410 can rotate.

[0140] Fig. Figure 5 illustrates an electrode manufacturing equipment that coats or laminates an active material onto two surfaces of an electrode sheet.

[0141] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4 to Fig. 5 The electrode manufacturing equipment 1 can include the first electrode manufacturing device 11 and the second electrode manufacturing device 12.

[0142] The first electrode fabrication device 11 can enable the active material 53 to be formed on a surface of the electrode sheet 50. For example, the active material 53 can form the lower surface 50b of the electrode sheet by the first electrode fabrication device 11.

[0143] The second electrode manufacturing device 12 can enable the active material 53 to be formed on a different surface of the electrode sheet 50. For example, the active material 53 can form the upper surface 50t of the electrode sheet by the second electrode manufacturing device 12.

[0144] The electrode manufacturing equipment 1 can include the first electrode thickness measuring device 21 and the second electrode thickness measuring device 22.

[0145] For example, the first electrode thickness measuring device 21 can measure at least one of a thickness or thickness profile of the pre-electrode sheet 50 in which the active material 53 is formed on a surface of the pre-electrode sheet 50.

[0146] For example, the second electrode thickness measuring device 22 (see Fig. 5) measure at least one thickness or thickness profile of the pre-electrode sheet 50 in which the active material 53 is formed on two surfaces of the pre-electrode sheet 50.

[0147] Fig. Figure 6 is a block diagram of an electrode manufacturing device according to an embodiment of the present disclosure.

[0148] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. 6. The electrode manufacturing device 10 can contain a controller 810 that processes signals. The controller 810 can perform operations. For example, the controller 810 can process or calculate data based on a given algorithm.

[0149] The 810 controller can be implemented by at least one of a computer, processor, circuit board, laptop, server or printed circuit board (PCB).

[0150] The electrode manufacturing device 10 can include an input unit 820. The input unit 820 can receive input from a user, etc. The input unit 820 can generate a first signal S1 and transmit the first signal S1 to the controller 810. The first signal S1 can contain information about the input received by the input unit 820.

[0151] The sensor arrangement 300 can generate a second signal S2 and transmit this second signal S2 to the controller 810. The second signal S2 can contain information about the temperature of the electrode sheet 50.

[0152] For example, the second signal S2 can contain information about the temperature of a section of the pre-electrode sheet 50 that is in contact with the fourth active material transfer roller 204. For example, the second signal S2 can contain information about the temperature of the heating area of ​​the pre-electrode sheet 50.

[0153] The second signal S2 can contain information about the thickness and thickness profile of the active material 53 that is in contact with the fourth active material transfer roller 204.

[0154] For example, the second signal S2 can contain information about the thickness profile of the active material 53 that is in contact with the fourth active material transfer roller 204. The controller 810 can extract a thickness uniformity of the active material 53 that is in contact with the fourth active material transfer roller 204 from the information about the thickness profile of the active material 53 that is in contact with the fourth active material transfer roller 204.

[0155] For example, the second signal S2 can contain information about the total thickness of the active material 53 that is in contact with the fourth active material transfer roller 204. For example, based on the second signal S2, the controller 810 can determine whether a value obtained by subtracting a reference thickness from the total thickness of the active material 53 that is in contact with the fourth active material transfer roller 204 is within an error range.

[0156] The 810 controller can generate output signals S4, S5, S6, and S7 based on input signals S1 and S2. For example, the 810 controller can input signals S1 and S2 into a specific program or algorithm to obtain output signals S4, S5, S6, and S7.

[0157] The input signals S1 and S2 can contain or specify at least one of the first signal S1 or the second signal S2. The output signals S4, S5, S6, and S7 can contain or specify at least one of the fourth signal S4, the fifth signal S5, the sixth signal S6, or the seventh signal S7.

[0158] The controller 810 can transmit the fourth signal S4 to the electrode transfer roller assembly 100. The fourth signal S4 can contain command information about the transfer of the electrode sheet 50.

[0159] The electrode transfer roller assembly 100 can operate in response to the fourth signal S4. For example, the electrode transfer roller assembly 100 can vary the transfer speed of the electrode sheet 50 in response to the fourth signal S4.

[0160] The controller 810 can transmit the fifth signal S5 to the laminating roller unit 400. The fifth signal S5 can contain information about the operation of the laminating roller unit 400. For example, the fifth signal S5 can contain at least one of the following: information about the rotation of the laminating roller 410, information about the operation of the inner housing motion device 440, or information about the operation of the outer housing motion device 460.

[0161] The laminating roller unit 400 can operate in response to the fifth signal S5. For example, the laminating roller 410 can rotate in response to the fifth signal S5. The rotational speed of the laminating roller 410 can also vary in response to the fifth signal S5.

[0162] For example, the inner housing motion device 440 can operate in response to the fifth signal S5. For example, the inner housing motion device 440 can operate in response to the fifth signal S5, and thus an inclination (degree of inclination) can be set between the rotational axis of the laminating roller 410 and the rotational axis of the fourth active material transfer roller 204.

[0163] For example, the outer housing movement device 460 can operate in response to the fifth signal S5, and thus a distance between the laminating roller 410 and the fourth active material transfer roller 204 can be set.

[0164] For example, the external housing motion device 460 can operate in response to the fifth signal S5.

[0165] The 810 controller can transmit the sixth signal S6 to the position setting roller 500. The sixth signal S6 can contain information about the position of the position setting roller 500. The position of the position setting roller 500 can be fixed or adjusted in response to the sixth signal S6.

[0166] The 810 controller can transmit the seventh signal S7 to the heating device 700. The seventh signal S7 can contain information about at least one aspect of the position or output of the heating device 700.

[0167] The heating device 700 can operate in response to the seventh signal S7. For example, the position of the heating device 700 can be set or fixed in response to the seventh signal S7. For example, the output of the heating device 700 can be set in response to the seventh signal S7.

[0168] The electrode manufacturing device 10 can include a communication unit 830. The communication unit 830 can communicate with an external organization or device. The communication unit 830 can transmit signals to and receive signals from the controller 810.

[0169] For example, the communication unit 830 can generate an eighth signal S8 and transmit the eighth signal S8 to the controller 810. In this case, the eighth signal S8 can be contained in the input signals S1, S2, and S8.

[0170] For example, the controller 810 can generate the eighth signal S8 and transmit the eighth signal S8 to the communication unit 830. In this case, the eighth signal S8 can be included in the output signals S4, S5, S6, S7, and S8.

[0171] Fig. Figure 7 is a block diagram of an electrode manufacturing equipment according to an embodiment of the present disclosure.

[0172] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 to Fig. 7. The electrode thickness measuring device 20 can generate a third signal S3 and transmit the third signal S3 to the controller 810. The third signal S3 can be included in the input signals S1, S2, and S3. The third signal S3 can contain information about at least one of the thicknesses or thickness profiles of the pre-electrode sheet 50.

[0173] Fig. Figure 8 is a flowchart illustrating the electrode fabrication process according to the present disclosure.

[0174] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7 to Fig. 8. Electrode manufacturing S10 can include a step S100 of applying a binder to the electrode current collector 51. In step S100, the binder 52 can be applied to the electrode current collector 51. For example, in step S100, the binder 52 can be applied to at least one of the upper surfaces or the lower surfaces of the electrode current collector 51.

[0175] Electrode manufacturing S10 can include a step S200 of combining the active material 53 with the binder 52. In step S200, the laminating roller unit 400 and the pressure roller 600 can combine the active material 53 with the binder 52 contained in the pre-electrode sheet 50.

[0176] Electrode manufacturing S10 can include a step S300 of checking the electrode sheet 50. In step S300, the electrode thickness measuring device 20 can measure at least one of the thickness or thickness profile of the downstream electrode sheet 50.

[0177] Fig. 9 is a flowchart that shows one in Fig. 8 illustrated active material combination step illustrated.

[0178] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8 to Fig. 9. The active material combination step S200 can include a step S210 for measuring the active material 53. In step S210, the sensor arrangement 300 can measure at least one thickness or thickness profile of the active material 53 that is in contact with the laminating roller 410.

[0179] The active material combination step S200 can include a step S220 for determining whether the thickness of the active material 53 is satisfactory. In step S220, the controller 810 can perform a first active material thickness determination and a second active material thickness determination.

[0180] The first determination of the active material thickness can consist of determining whether the uniformity of the thickness of the active material 53, which is in contact with the laminating roller 410, is less than or equal to a reference active material thickness uniformity.

[0181] The uniformity of the thickness of the active material 53 in contact with the laminating roller 410 can indicate how uniform the thicknesses of the active material 53 are when measured at a multitude of points.

[0182] For example, the uniformity of the thickness of the active material 53 in contact with the laminating roller 410 can be a standard deviation of each thickness of the active material 53 measured at the plurality of points.

[0183] The smaller the uniformity of the thickness of the active material 53 that is in contact with the laminating roller 410, the more uniform the thickness of the active material 53 that is in contact with the laminating roller 410 can be.

[0184] For example, in step S220, with regard to the first active material thickness determination, the controller 810 can determine whether the uniformity of the thickness of the active material 53, which is in contact with the laminating roller 410, is less than or equal to the reference active material thickness uniformity.

[0185] The second active material thickness determination can consist of determining how much the total thickness of the active material 53 in contact with the laminating roller 410 differs from a reference active material thickness. The total thickness of the active material 53 in contact with the laminating roller 410 can be an average of the respective thicknesses of the active material 53 measured at a multitude of points.

[0186] For example, in step S220 with regard to the second active material thickness determination, the controller 810 can determine whether an absolute value of a value obtained by subtracting the reference active material thickness from the total thickness of the active material 53 in contact with the laminating roller 410 is less than or equal to a reference active material thickness difference.

[0187] The active material combination step S200 may include a laminating roller adjustment step S230.

[0188] The controller 810 can perform step S230 if the uniformity of the thickness of the active material 53 in contact with the laminating roller 410 is greater than the reference active material thickness uniformity.

[0189] The controller 810 can perform step S230 if the absolute value of the value obtained by subtracting the reference active material thickness from the total thickness of the active material 53 in contact with the laminating roller 410 is greater than or equal to the reference active material thickness difference.

[0190] In step S230, the controller 810 can generate the fifth signal S5 based on the first signal S1 and the second signal S2 and transmit the fifth signal S5 to the laminating roller unit 400. At least one of the inner housing motion devices 440 or the outer housing motion device 460 can set at least one position or orientation of the laminating roller 410 in response to the fifth signal S5.

[0191] The active material combination step S200 can include a laminating roller rotation step S240. In step S240, the laminating roller 410 can rotate and apply the active material 53 to the binder 52.

[0192] The laminating roller rotation step S240 can be performed in parallel with the active material measurement step S210. The laminating roller rotation step S240 can be performed in parallel with step S220, which determines whether the thickness of the active material 53 is satisfactory. The laminating roller rotation step S240 can be performed in parallel with the laminating roller adjustment step S230.

[0193] The active material combination step S200 can include a step S250 for determining whether a termination reason has occurred. In step S250, the controller 810 can determine whether there is a reason to terminate the operation of the electrode manufacturing device 10.

[0194] If it is determined that there is a reason to stop operating the electrode manufacturing device 10, the controller 810 can terminate the active material combination step S200. If it is determined that there is no reason to stop operating the electrode manufacturing device 10, the controller 810 can perform the laminating roller rotation step S240 and the active material measurement step S210.

[0195] Fig. 10 is a flowchart that shows one in Fig. 8 illustrated electrode sheet inspection step illustrated.

[0196] With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9 to Fig. 10. Electrode sheet inspection step S300 can include a step S310 for measuring the thickness of the electrode sheet 50. In step S310, the electrode thickness measuring device 20 can measure at least one thickness or thickness profile of the downstream electrode sheet 50.

[0197] Electrode sheet inspection step S300 can include step S320 for determining whether the thickness of the downstream electrode sheet 50 is satisfactory. In step S320, the controller 810 can perform a first electrode sheet thickness determination and a second electrode sheet thickness determination.

[0198] The first electrode sheet thickness determination can consist of determining whether the thickness uniformity of the downstream electrode sheet 50 is less than or equal to that of the reference electrode sheet thickness uniformity.

[0199] The uniformity of the thickness of the post-electrode sheet 50 can indicate how uniform the thicknesses of the electrode sheet 50 are when measured at a multitude of points along a width direction of the post-electrode sheet 50.

[0200] For example, the thickness uniformity of the post-electrode sheet 50 can be a standard deviation of each thickness of the post-electrode sheet 50 measured at a multitude of points. The smaller the thickness uniformity of the post-electrode sheet 50, the more uniform the thickness of the post-electrode sheet 50 can be.

[0201] For example, in step S320, with respect to the first electrode sheet thickness determination, the controller 810 can determine whether the thickness uniformity of the post-electrode sheet 50 is less than or equal to the reference electrode sheet thickness uniformity.

[0202] The second electrode sheet thickness determination can consist of determining how much the total thickness of the downstream electrode sheet 50 differs from a reference electrode sheet thickness. The total thickness of the downstream electrode sheet 50 can be an average of the respective thicknesses of the downstream electrode sheet 50 measured at a multitude of points.

[0203] For example, in step S320 with regard to the second electrode sheet thickness determination, the controller 810 can determine whether an absolute value of a value obtained by subtracting the reference electrode sheet thickness from the total thickness of the post-electrode sheet 50 is less than or equal to a reference electrode sheet thickness difference.

[0204] The electrode sheet inspection step S300 may include a laminating roller adjustment step S330.

[0205] The controller 810 can execute step S330 if the thickness uniformity of the downstream electrode sheet 50 is greater than the thickness of the reference electrode sheet. The controller 810 can also execute step S330 if the absolute value obtained by subtracting the thickness of the reference electrode sheet from the total thickness of the downstream electrode sheet 50 is greater than the difference in thickness between the reference electrode sheets.

[0206] In step S330, the controller 810 can generate the fifth signal S5 based on the first signal S1 and the third signal S3 and transmit the fifth signal S5 to the laminating roller unit 400. At least one of the inner housing motion devices 440 or the outer housing motion device 460 can adjust at least one of the positions of the laminating roller 410 in response to the fifth signal S5.

[0207] The controller 810 can perform the active material combination step S200 once step S330 is complete. The controller 810 can perform the active material combination step S200 once the thickness of the post-electrode sheet 50 has been determined to be satisfactory.

[0208] The electrode sheet inspection step S300 can be performed after the active material combination step S200. In another example, the electrode sheet inspection step S300 and the active material combination step S200 can be performed in parallel.

[0209] Fig. Figure 11 is a flowchart illustrating an active material combination step that includes a step of heating a pre-electrode sheet.

[0210] With regard to the heating of the pre-electrode sheet 50, the active material combination step S200 can include a variety of processes (or steps).

[0211] The active material combination step S200 can include a step S201 for heating the pre-electrode sheet. In step S201, the heating device 700 and a heating element (not shown) can heat the pre-electrode sheet 50.

[0212] The active material combination step S200 can include a step S202 for measuring the temperature of the pre-electrode sheet. In step S202, the temperature sensor unit 330 can measure the temperature of the pre-electrode sheet 50.

[0213] The active material combination step S200 can include a step S203 for determining whether the temperature of the pre-electrode sheet is within acceptable limits. In step S203, the controller 810 can determine whether the temperature of the pre-electrode sheet 50 lies between a lower limit and an upper limit electrode sheet temperature.

[0214] If the temperature of the pre-electrode sheet 50 is between the lower limit electrode sheet temperature and the upper limit electrode sheet temperature, the pre-electrode sheet heating step S201 can be performed.

[0215] The active material combination step S200 may include a heater adjustment step S204. If it is determined that the temperature of the pre-electrode sheet 50 is not between the lower limit electrode sheet temperature and the upper limit electrode sheet temperature, step S204 may be performed.

[0216] In step S204, at least one of the positions or outputs of the heating device 700 can be adjusted depending on the temperature of the pre-electrode sheet 50. For example, if the temperature of the pre-electrode sheet 50 is lower than the lower limit electrode sheet temperature, the heating device 700 can move closer to the heating area or its output can increase. Conversely, if the temperature of the pre-electrode sheet 50 is higher than the upper limit electrode sheet temperature, the heating device 700 can move away from the heating area or its output can decrease. Step S204 can then be completed, and the pre-electrode sheet heating step S201 can be performed.

[0217] The active material combination step S200 can include a laminating roller rotation step S205. In step S205, the laminating roller 410 can rotate. As the laminating roller 410 rotates, the pre-electrode sheet 50 and the active material 53 can be combined to form the post-electrode sheet 50. The laminating roller rotation step S205 and the pre-electrode sheet heating step S201 can be performed in parallel.

[0218] The active material combination step S200 may include a step S206 to determine whether a termination reason has occurred. If it is determined that the termination reason has not occurred, the laminating roller rotation step S205 and the pre-electrode sheet heating step S201 may be performed. If it is determined that the termination reason has occurred, the active material combination step S200 may be terminated.

[0219] Only specific examples of implementations of certain embodiments are described. Variations, improvements, and enhancements of the disclosed embodiments and other embodiments may be made based on the disclosure of this patent document.

Claims

[1] Electrode manufacturing apparatus (10) comprising: an electrode sheet feed roller that transfers a pre-electrode sheet forming one surface and another surface; a position setting roller (500) adjacent to the electrode sheet feed roller, wherein the position setting roller (500) receives the pre-electrode sheet from the electrode sheet feed roller; a laminating roller (410) and a pressure roller (600) which receive the pre-electrode sheet from the position setting roller (500) and are facing each other; an active material feed roller facing the laminating roller (410) and providing an active material (53) for the laminating roller (410); and a heating device (700) that applies heat to a heating area of ​​the pre-electrode sheet, wherein the heating area is positioned between the electrode sheet feed roller and the position setting roller (500), wherein the pre-electrode sheet and the active material (53) are inserted into and ejected from the laminating roller (410) and the pressure roller (600). [2] Electrode manufacturing device (10) according to claim 1, wherein the pre-electrode sheet provided for the position setting roller (500) comprises: an electrode current collector (51) which has a leaf shape and is made of a metal; and a binder (52) laminated onto the electrode current collector (51), wherein the heating device (700) faces the binder (52) and provides heat to the binder (52). [3] Electrode manufacturing device (10) according to claim 2, wherein the laminating roller (410) and the pressure roller (600) apply pressure to the electrode current collector (51), the binder (52) and the active material (53) which are inserted between the laminating roller (410) and the pressure roller (600). [4] Electrode manufacturing device (10) according to claim 2 or 3, wherein when the active material (53) is introduced into and ejected from the laminating roller (410) and the pressure roller (600), the active material (53) is combined with the binder (52). [5] Electrode manufacturing device (10) according to one of claims 1 to 4, wherein an outer circumferential surface of the pressure roller (600) is formed from silicon. [6] Electrode manufacturing device (10) according to one of claims 1 to 5, further comprising a temperature sensor unit (330) which measures a temperature of the pre-electrode sheet to be provided for the laminating roller (410). [7] Electrode manufacturing device (10) according to claim 6, wherein the heating device (700) sets at least one of a distance or output of the heating device (700) with respect to the heating area based on the temperature of the pre-electrode sheet. [8] Electrode manufacturing device (10) according to claim 6 or 7, wherein the temperature sensor unit (330) faces the pre-electrode sheet which is in contact with the laminating roller (410). [9] Electrode manufacturing device (10) according to any one of claims 1 to 8, wherein the laminating roller (410) contains a heating element which provides heat for an outer circumferential surface of the laminating roller (410). [10] Electrode manufacturing equipment (1), comprising: an electrode sheet feed roller that transfers a pre-electrode sheet forming one surface and another surface; a position setting roller (500) adjacent to the electrode sheet feed roller, wherein the position setting roller (500) receives the pre-electrode sheet from the electrode sheet feed roller; a laminating roller (410) and a pressure roller (600) which receive the pre-electrode sheet from the position setting roller (500) and are facing each other; an active material feed roller which faces the laminating roller (410) and provides an active material (53) for the laminating roller (410); a heating device (700) that applies heat to a heating area of ​​the pre-electrode sheet, wherein the heating area is positioned between the electrode sheet feed roller and the position setting roller (500); and an electrode thickness measuring device (20) which measures the thickness of a post-electrode sheet formed by combining the pre-electrode sheet and the active material (53), wherein the pre-electrode sheet and the active material (53) are inserted into and ejected from the laminating roller (410) and the pressure roller (600) to form the post-electrode sheet.

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