WO2024186060A1 - 전극 시트의 건조장치 및 건조방법 - Google Patents
전극 시트의 건조장치 및 건조방법 Download PDFInfo
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- WO2024186060A1 WO2024186060A1 PCT/KR2024/002647 KR2024002647W WO2024186060A1 WO 2024186060 A1 WO2024186060 A1 WO 2024186060A1 KR 2024002647 W KR2024002647 W KR 2024002647W WO 2024186060 A1 WO2024186060 A1 WO 2024186060A1
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- solvent
- electrode sheet
- sub
- drying
- injection nozzle
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/001—Air generating units, e.g. movable or independent of drying enclosure
- F26B21/002—Air generating units, e.g. movable or independent of drying enclosure with means for indirect air heating, i.e. using heat exchangers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/3013—Lift valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/02—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery
- B05B12/04—Arrangements for controlling delivery; Arrangements for controlling the spray area for controlling time, or sequence, of delivery for sequential operation or multiple outlets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
- B05B12/087—Flow or presssure regulators, i.e. non-electric unitary devices comprising a sensing element, e.g. a piston or a membrane, and a controlling element, e.g. a valve
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
- B05B12/1409—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet the selection means being part of the discharge apparatus, e.g. part of the spray gun
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0207—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the work being an elongated body, e.g. wire or pipe
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B13/00—Machines and apparatus for drying fabrics, fibres, yarns, or other materials in long lengths, with progressive movement
- F26B13/10—Arrangements for feeding, heating or supporting materials; Controlling movement, tension or position of materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/30—Controlling, e.g. regulating, parameters of gas supply
- F26B21/35—Temperature; Pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements for supplying or controlling air or other gases for drying solid materials or objects
- F26B21/50—Ducting arrangements from the source of air or other gases to the materials or objects being dried
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0404—Methods of deposition of the material by coating on electrode collectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0419—Methods of deposition of the material involving spraying
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/139—Processes of manufacture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
- B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
- B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
- B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
- B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
- B05B9/0423—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material for supplying liquid or other fluent material to several spraying apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/04—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
- B05D3/0406—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases the gas being air
- B05D3/0413—Heating with air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/10—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by other chemical means
- B05D3/107—Post-treatment of applied coatings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a drying device and a drying method for an electrode sheet, and more specifically, to a drying device and a drying method for an electrode sheet configured to control whether or not to supply a solvent to a solvent injection nozzle according to a change in a coating pattern of an electrode sheet.
- lithium secondary batteries consist of a positive electrode, a negative electrode, and an electrolyte material interposed between them, and are divided into lithium ion batteries and lithium polymer batteries depending on which positive and negative electrode active materials are used.
- the electrode of the above lithium secondary battery can be formed by coating a positive or negative electrode active material on a current collector such as an aluminum or copper sheet, mesh, film, or foil, and then drying it in a drying oven.
- a current collector such as an aluminum or copper sheet, mesh, film, or foil
- the electrode sheet supplied by being moved to the drying oven may include a holding portion on which electrode slurry is applied and a non-holding portion on which electrode slurry is not applied.
- the solvent in the electrode slurry in the holding portion is evaporated by drying, and thus the electrode slurry in the holding portion shrinks.
- the force of the electrode slurry in the holding portion to shrink during the drying process acts as stress on the current collector of the non-holding portion, which may cause wrinkles and cracks.
- this phenomenon is becoming more severe as the hot air temperature increases due to the tendency of the battery to have high capacity and high loading.
- Korean Patent Publication No. 10-2021-0015278 discloses a technology for maintaining a stable dry level of an electrode to be dried by cooling the temperature inside the drying oven by spraying moisture inside the drying oven to minimize detachment and cracking of the electrode due to overdrying.
- a moisture spray nozzle is installed inside a duct to supply moisture in the form of mist to the hot air supplied into the drying oven through the duct, and since moisture is not directly sprayed on the uncoated portion, there was a limit to the occurrence of cracks in the uncoated portion. Accordingly, a technology is being attempted to spray moisture on the uncoated portion by installing a moisture spray nozzle inside the drying oven.
- FIG. 1 illustrates a conventional electrode sheet drying device having a moisture spray nozzle installed inside a drying oven
- FIG. 2 illustrates a conventional moisture supply method for supplying moisture to the moisture spray nozzle illustrated in FIG. 1
- FIG. 3 illustrates problems with the conventional moisture supply method.
- a plurality of moisture spray nozzles (21) are installed in a drying oven (30), and are arranged at regular intervals along the width direction (TD, Y direction) of the electrode sheet (10), and are configured to supply moisture (S) from above the electrode sheet (10) toward the electrode sheet (10).
- a main flow path (23) passes through the plurality of moisture spray nozzles (21), and a pump (26) is configured to supply a solvent stored in a storage tank (not shown) to the plurality of moisture spray nozzles (21) through the main flow path (23).
- coating when coating the electrode slurry, coating may be performed so that the holding portion (12) and the non-holding portion (11) alternately appear along the width direction (Y direction) of the electrode sheet as in Fig. 1, or coating may be performed so that the non-holding portion (11) is positioned at both edges in the width direction of the electrode sheet and the holding portion (12) is positioned in the center as in Fig. 3.
- the conventional moisture supply method is not suitable for such a change in coating form. That is, the coating device of Fig. 1 is suitable for an electrode sheet in which the holding portions (12) and the uncoated portions (11) appear alternately, but for an electrode sheet in which the uncoated portions (11) are located only on both edges as in Fig. 3, moisture cannot be sprayed even on the central holding portion (12) that does not require moisture spraying.
- the present invention aims to provide a drying device and drying method for an electrode sheet, which includes a solvent supply unit capable of blocking solvent supply to some of a plurality of solvent spray nozzles according to a change in the coating form of the electrode sheet.
- a drying device for an electrode sheet comprising: a drying oven having an internal space formed to dry an electrode sheet on which an electrode slurry is applied on a current collector; and a solvent supply unit configured to spray a solvent on an electrode sheet moving within the drying oven.
- the solvent supply unit may include: N solvent spray nozzles installed in the drying oven and arranged in a plurality along the width direction (TD) of the electrode sheet to spray a solvent toward a non-coated portion of the electrode sheet; a storage tank storing the solvent to be supplied to the solvent spray nozzles; a main channel connected to the storage tank and sequentially passing through the N solvent spray nozzles; one or more sub-channels branching off from the main channel and then joining back with the main channel; and a valve located at a branch point of the main channel and the sub-channel and opening and closing the main channel.
- the valve may be configured to close the main path when in an on state to allow solvent to flow into the sub path, and open the main path when in an off state to allow solvent to flow into the main path.
- the number of valves may correspond to the number of sub-flows.
- the sub-euro may be N-2 or less.
- one sub-euro may be configured to bypass one solvent injection nozzle.
- valves may be two or more, and each valve may be configured to independently control an on-off operation.
- the first solvent injection nozzle arranged at the outermost side in the electrode sheet width direction (TD) and the Nth solvent injection nozzle arranged at the outermost side on the other side in the electrode sheet width direction (TD) can be configured so that the solvent is supplied only through the main path.
- the solvent supply unit may further include a pump that supplies the solvent stored in the storage tank to the solvent injection nozzle through the main path.
- the solvent injection nozzles may be arranged in multiple numbers along the traveling direction (MD) of the electrode sheet.
- a drying device may further include a hot air supply unit for supplying hot air to an electrode sheet traveling within the drying oven, wherein the hot air supply unit may include: a heat exchanger for heating supplied outside air; a hot air injection nozzle installed within the drying oven and configured to inject hot air toward the electrode sheet; a blower fan for supplying outside air heated by the heat exchanger to the hot air injection nozzle through a duct connected to an internal space of the drying oven; and a damper installed within the duct for controlling the amount of hot air supplied.
- a method for drying an electrode sheet including: a process of inserting an electrode sheet into a drying oven and inputting location information of a non-spraying portion where a solvent is not to be sprayed; a valve operating process of operating a valve located at a branch point of a main path passing through N solvent spray nozzles arranged in a plurality of directions along a width direction (TD) of the electrode sheet and a sub path branching from the main path based on the input information; and a process of supplying a solvent and spraying the solvent through the solvent spray nozzles.
- TD width direction
- a drying method can control whether or not a solvent is supplied to at least one solvent injection nozzle through the valve operating process.
- the valve may be configured to close the main path when in the on state to allow solvent to flow into the sub path, and open the main path when in the off state to allow solvent to flow into the main path.
- each sub-euro may be configured to bypass one solvent injection nozzle.
- a drying device can block the supply of solvent to some solvent injection nozzles that do not require solvent injection among a plurality of solvent injection nozzles by allowing the solvent supplied to the solvent injection nozzles through the main path to be bypassed to the sub path. Accordingly, there is an effect that the design of the solvent supply unit does not need to be changed depending on the coating form of the electrode sheet.
- Figure 1 is a drawing illustrating a conventional electrode sheet drying device having a moisture spray nozzle installed inside a drying oven.
- FIG. 2 is a drawing illustrating a conventional moisture supply method for supplying moisture to the moisture injection nozzle illustrated in FIG. 1.
- Figure 3 is a drawing for explaining problems with conventional water supply methods.
- Fig. 4 is a block diagram of a drying device for an electrode sheet according to one embodiment.
- Figure 5 is a block diagram of a solvent supply unit according to one embodiment.
- FIG. 6 is a drawing of a drying device for an electrode sheet according to one embodiment.
- Figure 7 is a partially enlarged view of an electrode sheet drying device according to one embodiment.
- Figure 8 is a drawing of a solvent supply unit according to one embodiment.
- FIG. 9 is an enlarged view of a portion of FIG. 8 to explain the operation of a valve according to one embodiment.
- Figure 10 is a drawing for explaining the effect of the present invention.
- FIG. 11 is a drawing of a solvent supply unit according to another embodiment.
- Fig. 12 is a flowchart for explaining a method for drying an electrode sheet according to one embodiment.
- a part such as a layer, film, region, or board is “on” another part, this includes not only the case where it is “directly above” the other part, but also the case where there is another part in between.
- a part such as a layer, film, region, or board is “under” another part, this includes not only the case where it is “directly below” the other part, but also the case where there is another part in between.
- being disposed “on” may include the case where it is disposed below as well as above.
- the X direction corresponds to the direction in which the electrode sheet is transported
- the Y direction corresponds to the width direction of the electrode sheet
- the Z direction corresponds to the direction perpendicular to the plane of the electrode sheet or the direction in which hot air is blown.
- the maintenance portion refers to a region of the electrode sheet where electrode slurry is applied
- the non-maintenance portion refers to a region where electrode slurry is not applied, and refers to a portion where the current collector is exposed.
- FIG. 4 is a block diagram of a drying device for an electrode sheet according to one embodiment
- FIG. 5 is a block diagram of a solvent supply unit according to one embodiment.
- the drying device (100, hereinafter referred to as 'drying device') of the electrode sheet may include a drying oven (110), a solvent supply unit (120), and a drying means (130').
- the solvent supply unit (120) may be configured so that solvent supply to some of the plurality of solvent spray nozzles can be blocked in response to a change in the coating form of the electrode sheet.
- FIG. 6 is a drawing of a drying device for an electrode sheet according to one embodiment.
- the drying device (100) may include a transport unit that transports the electrode sheet (10) to be dried in one direction so that the electrode sheet (10) passes through the internal space (112) through the inlet (111) and the outlet (113).
- the transport unit may transport the electrode sheet (10) to be dried in one direction by means of a plurality of transport rollers (140) that receive power from a motor (not shown) and rotate in one direction.
- the drying device (100) may include a drying means (130').
- the drying means (130') is not limited to a means that can dry the electrode slurry by supplying thermal energy to the electrode slurry to remove a solvent in the electrode slurry.
- the hot air supply unit (130) serves to dry the electrode slurry of the electrode sheet by spraying hot air toward the electrode sheet (10) being transported.
- the hot air supply unit (130) may be composed of an upper trunk (131) having a hot air supply passage therein, and a lower trunk (132) spaced apart from the upper trunk (131) so that the electrode sheet (10) to be dried may be transported in one direction.
- a hot air spray nozzle (131a, 132a) having a discharge hole formed therein for supplying hot air toward the electrode sheet (10) to be dried may be installed on opposite surfaces of the upper/lower trunks (131, 132).
- the hot air spray nozzle (131a, 132a) may be installed on the upper portion of the electrode sheet (10) moving within the drying oven (110), or may be installed on the upper and lower portions, respectively.
- the hot air supplied to the internal space (111) of the drying oven (110) may have a flow structure in which some of the hot air is circulated after being used to dry the electrode sheet (10) and the remainder is exhausted to the outside.
- the hot air supply unit (130) may include a heat exchanger (not shown) that heats supplied outside air; a hot air injection nozzle (131a, 132a) that is installed in the drying oven (110) and configured to inject hot air toward the electrode sheet (10); a blower fan (not shown) that supplies outside air heated by the heat exchanger to the hot air injection nozzle (131a, 132a) through a duct connected to the internal space of the drying oven (110); and a damper (not shown) that is installed in the duct (not shown) and adjusts the amount of hot air supplied.
- FIG. 7 is a partially enlarged view of an electrode sheet drying device according to one embodiment
- FIG. 8 is a drawing of a solvent supply unit according to one embodiment
- FIG. 9 is an enlarged view of a part of FIG. 8 to explain the operation of a valve according to one embodiment
- FIG. 10 is a drawing to explain the effect of the present invention.
- the above solvent supply unit (120) may be configured to spray solvent on the electrode sheet (10) running within the drying oven (110).
- a solvent supply unit (120) may include a solvent injection nozzle (121), a storage tank (122), a main flow path (123), a sub flow path (124), a valve (125), and a pump (126).
- the solvent injection nozzle (121) may be formed with one or more through holes capable of spraying a solvent.
- the solvent injection nozzle (121) may be installed within the internal space (111) of the drying oven (110), and more specifically, may be installed on an outer surface of the upper trunk (131) constituting the hot air supply unit (130), which faces the lower trunk (132).
- the embodiment is not limited thereto.
- a plurality (N) of solvent injection nozzles (121) may be arranged along the width direction (TD, Y direction) of the electrode sheet, and each of the N solvent injection nozzles (121) may be arranged spaced apart from each other.
- N means an integer of 2 or greater, and may be specifically in the range of 2 to 50, specifically in the range of 2 to 30 or in the range of 3 to 10, but is not limited thereto.
- the solvent spray nozzles (121) may be arranged in multiple locations not only along the width direction (TD, Y direction) but also along the traveling direction (MD, X direction) of the electrode sheet.
- the drying oven (110) may be composed of two or more drying zones physically or conceptually partitioned along the traveling direction (MD) of the electrode sheet (10), and the drying zone at the rear end is a section where drying is almost complete, so there is a relatively high possibility of overdrying.
- the drying zone at the front end is a section in the early stage of drying, so there is a relatively low possibility of overdrying. Therefore, the solvent spray nozzles (121) may be installed only in the drying zone at the rear end, or only in the drying zones at the middle and rear ends.
- the present invention is not limited thereto, and the solvent spray nozzles (121) may be installed in all of the drying zones of the front-middle-rear end, but each of the solvent spray nozzles may be configured to be independently controllable, so that the solvent may be sprayed only from the solvent spray nozzles (121) installed in the drying zone where solvent spraying is required.
- the solvent injection nozzles are installed in M rows along the running direction (MD) of the electrode sheet, the solvent injection nozzles may be arranged in a matrix of N ⁇ M inside the drying oven (110).
- the storage tank (122) may be configured to store the solvent to be supplied to the plurality of solvent injection nozzles (121).
- the storage tank (122) may have a storage space formed therein for storing the solvent.
- the solvent supplied to the solvent injection nozzle is not particularly limited in type, as long as it does not cause a chemical reaction with the current collector of the non-conductive portion or the electrode slurry around it during the drying process and can be removed by drying heat.
- Specific examples of such solvents include water, alcohol, a solvent for electrode slurry, an organic solvent for electrolyte, etc., and water may be preferable for environmentally friendly purposes.
- the main euro (123) serves as a transfer pipe for supplying solvent supplied from the storage tank (122) to N solvent injection nozzles (121).
- the main euro (123) may be structured to be connected to the storage tank (122) and sequentially pass through the N solvent injection nozzles (121).
- the sub-channel (124) serves as a bypass to block the supply of solvent through the main channel (123) to some of the solvent injection nozzles (121).
- one sub-channel (124) is configured to bypass one solvent injection nozzle (121). Accordingly, the solvent can be controlled so that it is not supplied to a solvent injection nozzle that does not require the supply of solvent.
- the sub-flow path (124) may be structured to branch off from the main flow path (123) and then merge back into the main flow path (123). Accordingly, the solvent flowing into the sub-flow path (124) may flow back into the main flow path (123) at the merging point where it merges with the main flow path (123).
- the solvent supplied through the main flow path (123) can flow into the main flow path (123) at the branch point. Meanwhile, since the valve (125) does not open and close the sub flow path (124), the solvent can be supplied to the sub flow path (124) regardless of the on and off state of the valve (125).
- the number of valves (125) may correspond to the number of sub-channels (124). That is, the number of valves (125) and the number of sub-channels (124) may be the same. This is because the valve (125) has a function of closing the main channel (123) to allow the solvent to flow into the sub-channel (124), and it may be natural that a number of valves (125) corresponding to the number of sub-channels (124) is required.
- three solvent injection nozzles may be spaced apart from each other along the width direction (Y direction) of the electrode sheet.
- the solvent injection nozzle located on the far left will be referred to as the first solvent injection nozzle (121a)
- the solvent injection nozzle located in the middle will be referred to as the second solvent injection nozzle (121b)
- the solvent injection nozzle located on the far right will be referred to as the third solvent injection nozzle (121c).
- one sub-channel (124) may be configured to bypass one solvent injection nozzle (121b).
- a valve (125) may be located at or near the branch point of the main channel (123) and the sub-channel (124).
- Fig. 9 (a) shows the flow of solvent (arrow) when the valve (125) is turned on
- Fig. 9 (b) shows the flow of solvent (arrow) when the valve (125) is turned off.
- the valve (125) in the turned on state closes the main flow path (123)
- the solvent flows into the sub flow path (124) from the branch point, and is not supplied to the main flow path between the branch point and the next branch point.
- the valve (125) in the turned off state opens the main flow path (123), the solvent flows into the main flow path (123) and the sub flow path (124).
- the solvent can be sequentially supplied to the first solvent injection nozzle (121a), the second solvent injection nozzle (121b), and the third solvent injection nozzle (121c) through the main path (123). Then, when the valve (125) is turned on to stop the solvent supply to the second solvent injection nozzle (121b), the main path is closed at the branch point, and the solvent supplied through the main path (123) flows into the sub path (124), so that the solvent is not supplied to the second solvent injection nozzle (121b).
- the solvent flowing into the sub-flow path (124) can flow into the main flow path (123) after the merging point where the sub-flow path (124) merges back into the main flow path (123) and be supplied to the third solvent injection nozzle (121c) located downstream therefrom.
- the sub-euro (123) can serve as a bypass to prevent the solvent from being supplied to the second solvent injection nozzle by the operation of the valve (125).
- the solvent supply unit (120) may further include a valve controller for controlling the on-off operation of the valve (125).
- the first solvent injection nozzle arranged at the outermost side on one side in the electrode sheet width direction (TD) and the Nth solvent injection nozzle arranged at the outermost side on the other side can be configured so that the solvent is supplied only through the main path.
- the first solvent injection nozzle (121a) located at the outermost side on one side and the third solvent injection nozzle (121c) located at the outermost side on the other side spray solvent onto the uncoated portions of the edges on both sides in the width direction (Y direction) of the electrode sheet. Since uncoated portions are generally formed at the edges on both sides in the width direction of the electrode sheet, the first and third solvent injection nozzles (121a, 121c) generally always need to spray solvent. Accordingly, in this general form of electrode sheet, the solvent injection nozzles located at the outermost sides on both sides do not need to control whether or not to supply solvent.
- a solvent supply unit (120) may be configured to independently control whether or not to supply solvent to each solvent injection nozzle.
- the solvent spray nozzle positioned above the uncoated portion (11) can spray the solvent on the uncoated portion.
- the solvent can be bypassed to the solvent spray nozzles (121b to 121d) positioned above the supporting portion (12) by turning the valve on and off.
- the drying device according to the present invention has the effect of spraying the solvent on the uncoated portion corresponding to electrode sheets having various coating forms.
- the above pump (126) serves to supply the solvent stored in the storage tank (122) to the solvent injection nozzle (121) through the main path (123).
- the pump (126) may be installed inside the storage tank (122) or may be installed outside the storage tank (122).
- the pump may be configured to pump the solvent stored in the storage tank and supply it to the main path (123).
- FIG. 11 illustrates a solvent supply unit according to another embodiment of the present invention.
- four solvent injection nozzles may be spaced apart along the width direction (Y direction) of the electrode sheet.
- the four solvent injection nozzles are sequentially referred to as the first solvent injection nozzle to the fourth solvent injection nozzle (221a, 221b, 221c, 221d) from the leftmost to the rightmost.
- sub-channels (224a, 224b) bypassing them may be branched from the main channel (223).
- the two sub-flow paths (224a, 224b) in Fig. 11 are sequentially referred to as the first sub-flow path (224a) and the second sub-flow path (224b) from the leftmost one, and the valve located at the branch point of the first sub-flow path (224a) is referred to as the first valve (225a), and the valve located at the branch point of the second sub-flow path (224b) is referred to as the second valve (225b).
- a first sub flow path (224a) may be branched between the first solvent injection nozzle (221a) and the second solvent injection nozzle (221b), and in the path of the main flow path (223), a second sub flow path (224b) may be branched between the second solvent injection nozzle (221b) and the third solvent injection nozzle (221c).
- the first sub-flow (224a) can rejoin the main flow (223) upstream of the branch point of the second sub-flow (224b) in the path of the main flow (223), and the second sub-flow (224b) can rejoin the main flow (223) between the third solvent injection nozzle (221c) and the fourth solvent injection nozzle (221d) in the path of the main flow (223).
- each sub-channel (224a, 224b) be configured to bypass one solvent injection nozzle.
- the number of valves corresponds to the number of sub-euro, so if there are two or more sub-euro, there may also be two or more valves. If there are two or more valves, each valve may be configured to independently control the on-off operation.
- each of the plurality of valves can be independently controlled, so that whether or not the solvent is supplied through the solvent injection nozzle through the main path can be controlled in response to electrode sheets having various coating forms.
- the number of solvent injection nozzles is not limited thereto. Accordingly, the number of sub-flow paths is not limited to one or two, and may increase corresponding to the number of solvent injection nozzles.
- N-2 sub-uros when the number of solvent injection nozzles is N, a maximum of N-2 sub-uros can be installed.
- FIG 12 is a flow chart for explaining a drying method of an electrode sheet (hereinafter referred to as “drying method”) according to one embodiment.
- a drying method may include a process (P100) of inserting an electrode sheet into a drying oven and inputting location information of a non-spraying portion where a solvent is not to be sprayed; a valve operating process (P200) of operating a valve located at a branch point of a main path passing through N solvent spray nozzles arranged in a plurality of directions along the width direction (TD) of the electrode sheet and a sub path branching from the main path based on the input information; and a process (P300) of supplying a solvent and spraying the solvent through the solvent spray nozzles.
- P100 a process of inserting an electrode sheet into a drying oven and inputting location information of a non-spraying portion where a solvent is not to be sprayed
- P200 valve operating process of operating a valve located at a branch point of a main path passing through N solvent spray nozzles arranged in a plurality of directions along the width direction (TD) of the electrode sheet and a sub path branching from the main path
- the drying method may utilize the drying device (100) described above.
- the drying method according to the present invention may utilize an electrode sheet drying device including a drying oven (110) having an internal space formed to dry an electrode sheet on which an electrode slurry is applied on a current collector; and a solvent supply unit (120) configured to spray a solvent on an electrode sheet moving within the drying oven, wherein the solvent supply unit comprises: N solvent spray nozzles (121) installed in the drying oven and arranged in a plurality along the width direction (TD) of the electrode sheet to spray a solvent toward a non-coated portion of the electrode sheet; a storage tank (122) storing a solvent to be supplied to the solvent spray nozzles; a main channel (123) connected to the storage tank and sequentially passing through the N solvent spray nozzles; one or more sub channels (124) branching off from the main channel and then joining back with the main channel; and a valve (125) located at a branch point of the main channel and the sub channels and opening and closing the main channel. Since the above drying device,
- a drying method may be configured to enable control of whether or not to supply solvent to at least one solvent injection nozzle through the valve operating process.
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Abstract
Description
Claims (15)
- 전극 슬러리가 집전체 상에 도포된 전극 시트를 건조하기 위하여 내부 공간이 형성되는 건조 오븐; 및건조 오븐 내에서 주행하는 전극 시트에 대해 용매를 분사하도록 구성된 용매 공급 유닛을 포함하고,상기 용매 공급 유닛은,상기 건조 오븐에 설치되고, 전극 시트의 폭 방향(TD)을 따라 복수 배치되어, 전극 시트의 무지부를 향해 용매를 분사하는 N개의 용매 분사 노즐;상기 용매 분사 노즐에 공급될 용매가 저장되는 저장탱크;상기 저장탱크와 연결되고, 상기 N개의 용매 분사 노즐을 순차 경유하는 메인 유로;상기 메인 유로로부터 분기되었다가, 다시 메인 유로와 합쳐지는 하나 이상의 서브 유로; 및메인 유로와 서브 유로의 분기점에 위치하며, 메인 유로를 개폐하는 밸브를 포함하는 전극 시트의 건조장치.
- 청구항 1에 있어서,상기 밸브는, 켜짐(on) 상태에서 메인 유로를 닫아 용매가 서브 유로로 유입되도록 하고, 꺼짐(off) 상태에서 메인 유로를 열어 용매가 메인 유로로 유입되도록 하는 전극 시트의 건조장치.
- 청구항 1에 있어서,상기 밸브의 개수는 서브 유로의 개수에 대응하는 전극 시트의 건조장치.
- 청구항 1에 있어서,상기 서브 유로는 둘 이상인 전극 시트의 건조장치.
- 청구항 4에 있어서,상기 서브 유로는 N-2개 이하인 전극 시트의 건조장치.
- 청구항 1에 있어서,하나의 서브 유로는 하나의 용매 분사 노즐을 우회하도록 구성된 전극 시트의 건조장치.
- 청구항 4에 있어서,상기 밸브는 둘 이상이고, 각각의 밸브는 독립적으로 켜짐-꺼짐(on-off) 동작의 제어가 가능하도록 구성된 전극 시트의 건조장치.
- 청구항 3 또는 청구항 4에 있어서,전극 시트 폭 방향(TD)의 일측 최외곽에 배치된 제1 용매 분사 노즐 및 전극 시트 폭 방향(TD)의 타측 최외곽에 배치된 제N 용매 분사 노즐은, 메인 유로를 통해서만 용매가 공급되도록 구성된 전극 시트의 건조장치.
- 청구항 1에 있어서,상기 용매 공급 유닛은,상기 저장탱크에 저장된 용매를 메인 유로를 통해 용매 분사 노즐에 공급해주는 펌프를 더 포함하는 전극 시트의 건조장치.
- 청구항 1에 있어서,상기 용매 분사 노즐은, 전극 시트의 주행 방향(MD)을 따라 복수 배치된 전극 시트의 건조장치.
- 청구항 1에 있어서,상기 건조 오븐 내에서 주행하는 전극 시트에 대해 열풍을 공급하기 위한 열풍 공급 유닛을 더 포함하고,상기 열풍 공급 유닛은,공급되는 외기를 가열해주는 열교환기;상기 건조 오븐 내에 설치되어, 전극 시트를 향해 열풍을 분사하도록 구성된 열풍 분사 노즐;상기 열교환기에 의해 가열된 외기를 상기 건조 오븐의 내부 공간과 연결된 덕트를 통해 열풍 분사 노즐에 공급해주는 송풍팬; 및상기 덕트 내에 설치되어, 열풍 공급량을 조절해주는 댐퍼를 포함하는 전극 시트의 건조장치.
- 건조 오븐에 전극 시트를 투입하고, 용매를 분사하지 않을 무지부의 위치 정보를 입력하는 과정;전극 시트의 폭 방향(TD)을 따라 복수 배치된 N개의 용매 분사 노즐들을 경유하는 메인 유로와 상기 메인 유로로부터 분기되는 서브 유로의 분기점에 위치한 밸브를 상기 입력된 정보에 기반하여 조작하는 밸브 조작 과정; 및용매를 공급하여 상기 용매 분사 노즐을 통해 용매를 분사하는 과정을 포함하고,상기 밸브 조작 과정을 통해 적어도 하나 이상의 용매 분사 노즐로의 용매 공급 여부의 제어가 가능한 것을 특징으로 하는 전극 시트의 건조방법.
- 청구항 12에 있어서,상기 밸브는, 켜짐(on) 상태에서 메인 유로를 닫아 용매가 서브 유로로 유입되도록 하고, 꺼짐(off) 상태에서 메인 유로를 열어 용매가 메인 유로로 유입되도록 하는 전극 시트의 건조방법.
- 청구항 12에 있어서,상기 서브 유로는 둘 이상인 전극 시트의 건조방법.
- 청구항 14에 있어서,각각의 서브 유로는 하나의 용매 분사 노즐을 우회하는 전극 시트의 건조방법.
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| JP2025513093A JP2025532491A (ja) | 2023-03-09 | 2024-02-29 | 電極シートの乾燥装置及び乾燥方法 |
| US19/110,595 US20250230978A1 (en) | 2023-03-09 | 2024-02-29 | Drying Device and Drying Method for Electrode Sheet |
| CN202480003938.0A CN119856289A (zh) | 2023-03-09 | 2024-02-29 | 电极片材的干燥装置和干燥方法 |
| EP24767349.4A EP4567915A4 (en) | 2023-03-09 | 2024-02-29 | DRYING DEVICE AND DRYING METHOD FOR ELECTRODE SHEET |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010067579A (ja) * | 2008-09-12 | 2010-03-25 | Nissan Motor Co Ltd | 電極材乾燥装置、および電極材乾燥方法 |
| KR20200012329A (ko) * | 2018-07-27 | 2020-02-05 | 주식회사 엘지화학 | 과열 방지 및 건조 속도 제어용 용매 분무 장치를 포함한 건조 장치 |
| KR20210015278A (ko) | 2019-08-01 | 2021-02-10 | 주식회사 엘지화학 | 수분공급부가 구비된 전극 건조 장치 및 이를 이용한 전극 건조 방법 |
| KR20210061877A (ko) * | 2019-11-20 | 2021-05-28 | (주)피엔티 | 이차전지 음극 제조 장치 및 이차전지 음극 제조 방법 |
| JP2022189490A (ja) * | 2021-06-11 | 2022-12-22 | 株式会社Subaru | 燃料電池システムの制御装置 |
| KR20230031025A (ko) | 2021-08-26 | 2023-03-07 | 상명대학교 천안산학협력단 | 잔액 알림 기능이 구비된 교통 카드 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60133913A (ja) * | 1983-12-22 | 1985-07-17 | Nippon Steel Corp | 流体噴射装置 |
| JPH0811248B2 (ja) * | 1991-08-26 | 1996-02-07 | 新日本製鐵株式会社 | 仕上スタンド間での高圧水噴射方法 |
| JP3785974B2 (ja) * | 2001-09-13 | 2006-06-14 | 日本製紙株式会社 | 塗工紙の断紙防止方法 |
| JP6097897B1 (ja) * | 2017-01-10 | 2017-03-15 | 株式会社Ihi | バイナリ発電システム |
| CN207971053U (zh) * | 2017-10-27 | 2018-10-16 | 湖南立方新能源科技有限责任公司 | 一种加湿装置 |
| CN112498727B (zh) * | 2020-12-18 | 2025-10-28 | 成都航天万欣科技有限公司 | 一种无人机助推发射装置 |
-
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- 2024-02-29 US US19/110,595 patent/US20250230978A1/en active Pending
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010067579A (ja) * | 2008-09-12 | 2010-03-25 | Nissan Motor Co Ltd | 電極材乾燥装置、および電極材乾燥方法 |
| KR20200012329A (ko) * | 2018-07-27 | 2020-02-05 | 주식회사 엘지화학 | 과열 방지 및 건조 속도 제어용 용매 분무 장치를 포함한 건조 장치 |
| KR20210015278A (ko) | 2019-08-01 | 2021-02-10 | 주식회사 엘지화학 | 수분공급부가 구비된 전극 건조 장치 및 이를 이용한 전극 건조 방법 |
| KR20210061877A (ko) * | 2019-11-20 | 2021-05-28 | (주)피엔티 | 이차전지 음극 제조 장치 및 이차전지 음극 제조 방법 |
| JP2022189490A (ja) * | 2021-06-11 | 2022-12-22 | 株式会社Subaru | 燃料電池システムの制御装置 |
| KR20230031025A (ko) | 2021-08-26 | 2023-03-07 | 상명대학교 천안산학협력단 | 잔액 알림 기능이 구비된 교통 카드 |
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| US20250230978A1 (en) | 2025-07-17 |
| KR20240137805A (ko) | 2024-09-20 |
| EP4567915A4 (en) | 2026-02-25 |
| CN119856289A (zh) | 2025-04-18 |
| JP2025532491A (ja) | 2025-10-01 |
| EP4567915A1 (en) | 2025-06-11 |
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