WO2023085608A1 - 전극 코팅 장치 및 전극 코팅 방법 - Google Patents
전극 코팅 장치 및 전극 코팅 방법 Download PDFInfo
- Publication number
- WO2023085608A1 WO2023085608A1 PCT/KR2022/014854 KR2022014854W WO2023085608A1 WO 2023085608 A1 WO2023085608 A1 WO 2023085608A1 KR 2022014854 W KR2022014854 W KR 2022014854W WO 2023085608 A1 WO2023085608 A1 WO 2023085608A1
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- WO
- WIPO (PCT)
- Prior art keywords
- slurry
- adjusting material
- edge adjusting
- electrode coating
- coating device
- Prior art date
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 52
- 239000011248 coating agent Substances 0.000 title claims abstract description 38
- 239000002002 slurry Substances 0.000 claims abstract description 119
- 239000000463 material Substances 0.000 claims abstract description 101
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 6
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 6
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 6
- -1 Polytetrafluoroethylene Polymers 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 239000002904 solvent Substances 0.000 claims description 4
- 239000002033 PVDF binder Substances 0.000 claims description 3
- 239000004642 Polyimide Substances 0.000 claims description 3
- 239000002174 Styrene-butadiene Substances 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 229920001721 polyimide Polymers 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 229920001296 polysiloxane Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 239000011267 electrode slurry Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1005—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to condition of liquid or other fluent material already applied to the surface, e.g. coating thickness, weight or pattern
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/06—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying two different liquids or other fluent materials, or the same liquid or other fluent material twice, to the same side of the work
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
-
- 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
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
- H01M4/621—Binders
- H01M4/622—Binders being polymers
- H01M4/623—Binders being polymers fluorinated polymers
-
- 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 an electrode coating device and an electrode coating method, and more particularly, to an electrode coating device and an electrode coating method capable of uniforming the overall thickness of slurry.
- the electrode assembly has a form in which a positive electrode, a separator, and a negative electrode are stacked at least once, and the electrodes, that is, the positive electrode and the negative electrode, are positive electrode active material slurry and negative electrode active material slurry, that is, electrode slurry, on a current collector made of aluminum foil and copper foil, respectively. It is prepared by coating and drying.
- FIG. 1 is a view showing a state in which slurry is applied to a substrate by a conventional electrode coating device.
- the substrate is a current collector.
- a protrusion 3 is formed at an end of the slurry 2 in an upward direction due to surface tension or the like. In this way, when the protrusion 3 is formed at the end of the slurry, non-uniformity occurs in the overall thickness of the slurry, resulting in poor fairness in the winding process and lowering the stability of the finished battery cell.
- the technical problem to be achieved by the present invention is to provide an electrode coating device and an electrode coating method for uniforming the overall thickness of the slurry by removing the protrusion formed at the end of the slurry applied to the substrate.
- a slot die coater for applying a slurry to a substrate; and an edge adjusting material providing means for supplying an edge adjusting material to the slurry so as to contact the slurry and adjust a protrusion formed at an end of the slurry.
- a plurality of slurries may be provided, and the edge adjusting material may be provided between the plurality of slurries.
- edge adjusting material may be provided to pull the slurry due to a difference in surface tension.
- the edge adjusting material may use the same solvent as the slurry, and the surface tension of the edge adjusting material may be greater than that of the slurry.
- the edge adjusting material may include a binder-based material having an adhesive force within a preset range to prevent separation after drying.
- the edge adjusting material includes at least one of PTFE (Polytetrafluoroethylene)-based, polyolefin-based, polyimide-based, polyurethane-based, polyester-based, PVDF (Polyvinylidene fluoride) and SBR (Styrene Butadiene Rubber)-based, ceramic-based, and silicone-based can do.
- PTFE Polytetrafluoroethylene
- polyolefin-based polyimide-based
- polyurethane-based polyester-based
- PVDF Polyvinylidene fluoride
- SBR Styrene Butadiene Rubber
- the slot die coater includes at least two die blocks; a shim plate provided between the at least two die blocks and forming a slot communicating with the discharge port; and a manifold formed on at least one of the at least two die blocks and accommodating the slurry, and the edge adjusting material providing means may be formed on a shim plate.
- the edge adjusting material supply means is provided in a flow path formed on at least one side of the shim plate, and the edge adjusting material may be discharged as the slurry through the flow path formed on the shim plate.
- the shim plate may include a shim, and the passage may be provided as a straight groove on one side of the shim of the shim plate.
- the edge adjusting material supply means may be an edge adjusting material coater provided separately from the slot die coater, disposed above or below the slot die coater, and provided to discharge the edge adjusting material toward the substrate.
- an electrode coating method comprising the step of providing an edge adjusting material that adjusts the protrusion formed on the edge of the slurry in contact with the slurry as a slurry may be provided.
- the slurry may be provided in plurality, and the edge adjusting material may be provided between the plurality of slurries.
- Embodiments of the present invention by providing an edge adjusting material to the slurry applied to the substrate to remove the protrusion formed on the end of the slurry has the effect of making the overall thickness of the slurry uniform.
- FIG. 1 is a view showing a state in which slurry is applied to a substrate by a conventional electrode coating device.
- FIGS. 2 and 3 show a process in which an edge adjusting material is provided between slurries by an electrode coating device or an electrode coating method according to an embodiment of the present invention to remove protrusions at the ends of the slurry and make the overall thickness of the slurry uniform It is an illustrated drawing.
- FIG. 4 is a cross-sectional view of an electrode coating device according to an embodiment of the present invention.
- FIG. 5 is an exploded perspective view of an electrode coating device according to an embodiment of the present invention.
- FIG. 6 is a front view of the shim plate of FIG. 5;
- Fig. 7 is a plan view of the shim plate of Fig. 5;
- FIG. 8 is a cross-sectional view of an electrode coating device according to another embodiment of the present invention.
- FIG. 9 is a cross-sectional view of an electrode coating device according to another embodiment of the present invention.
- each component or a specific part constituting the component is exaggerated, omitted, or schematically illustrated for convenience and clarity of explanation. Therefore, the size of each component does not fully reflect the actual size. If it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, such description will be omitted.
- the term 'coupling' or 'connection' refers to the case where one member and another member are directly coupled or directly connected, as well as when one member is indirectly coupled to another member through a joint member, or indirectly Including cases connected to
- FIG. 2 and 3 show a process in which an edge adjusting material is provided between slurries by an electrode coating device or an electrode coating method according to an embodiment of the present invention to remove protrusions at the ends of the slurry and make the overall thickness of the slurry uniform
- 4 is a cross-sectional view of an electrode coating device according to an embodiment of the present invention
- FIG. 5 is an exploded perspective view of the electrode coating device according to an embodiment of the present invention
- FIG. 6 is a shim plate of FIG. 5 7 is a plan view of the shim plate of FIG. 5
- FIG. 8 is a cross-sectional view of an electrode coating device according to another embodiment of the present invention
- FIG. 9 is an electrode coating device according to another embodiment of the present invention. it is a cross section
- the substrate 300 is a current collector
- the slurry 400 means an electrode active material slurry.
- an electrode coating apparatus includes a slot die coater 100 and an edge adjusting material providing means 200.
- the slot die coater 100 is provided to discharge and apply the slurry 400 onto the substrate 300 through the discharge port 150, thereby coating the substrate 300.
- the slot die coater 100 includes die blocks 110 and 120 , a shim plate 130 , and a manifold 140 .
- die blocks 110 and 120 There may be two or more die blocks 110 and 120, and as shown in FIGS. 4 and 5, two of a lower die block 110 and an upper die block 120 may be provided.
- a shim plate 130 is provided between the lower die block 110 and the upper die block 120, whereby a slot 132 is formed. That is, the slot 132 is formed between the lower die block 110 and the upper die block 120 facing each other, the shim plate 130 between the lower die block 110 and the upper die block 120 is interposed to provide a gap between them, whereby a slot 132 corresponding to a passage through which the slurry 400 can flow may be formed.
- the lower die block 110 is disposed below, and the upper die block 120 is disposed above the lower die block 110 .
- the discharge port 150 is installed in a direction toward the substrate 300 so that the slurry 400 can be discharged toward the substrate 300 .
- any one of the die blocks 110 and 120 is provided with a manifold 140 having a predetermined depth and communicating with the slot 132 .
- a rotatably provided coating roll 600 is disposed in front of the lower die block 110 and the upper die block 120, and when the coating roll 600 rotates, the substrate 300 covers the coating roll 600. As the slurry 400 is applied to the substrate 300 through the outlet 150 between the lower die block 110 and the upper die block 120, the substrate 300 is coated.
- the shim plate 130 is provided between at least two die blocks 110 and 120, for example, between the lower die block 110 and the upper die block 120, and the slot 132 communicates with the outlet 150. ) to form
- the outlet 150 through which the slurry 400 is discharged to the outside is between the lower die lip 111, which is the front end of the lower die block 110, and the upper die lip 121, which is the front end of the upper die block 120. is formed
- the discharge port 150 may be formed to be spaced apart from each other between the die lips.
- the shim plate 130 serves as a gasket to prevent the slurry 400 from leaking into the gap between the lower die block 110 and the upper die block 120, except for the area where the discharge port 150 is formed. It may be made of a material having sealing properties so as to double the function.
- an edge adjusting material providing unit 200 to be described later may be formed on the shim plate 130 .
- the manifold 140 is formed on at least one of the at least two die blocks 110 and 120 and is provided to accommodate the slurry 400 . That is, the manifold 140 may be formed on the lower die block 110 or the upper die block 120 .
- the manifold 140 is connected to a supply chamber (not shown) installed outside and a supply pipe (not shown) to receive the slurry 400 .
- a supply chamber not shown
- a supply pipe not shown
- the edge adjusting material providing means 200 supplies the edge adjusting material 500 to the slurry 400 so as to contact the slurry 400 to adjust the protrusion 410 formed at the end of the slurry 400 .
- the edge adjusting material 500 means a material provided to pull the slurry 400 by a difference in surface tension.
- the edge adjusting material 500 uses the same solvent as the slurry 400 .
- the edge adjusting material 500 may include various materials provided that the surface tension of the edge adjusting material 500 is greater than that of the slurry 400 .
- the edge adjusting material 500 may include a binder-based material having an adhesive force within a preset range in order to prevent separation after drying.
- the edge adjusting material 500 is at least one of PTFE (Polytetrafluoroethylene)-based, polyolefin-based, polyimide-based, polyurethane-based, polyester-based, PVDF (Polyvinylidene fluoride), SBR (Styrene Butadiene Rubber)-based, ceramic-based and silicone-based may contain one.
- PTFE Polytetrafluoroethylene
- polyolefin-based polyimide-based
- polyurethane-based polyester-based
- PVDF Polyvinylidene fluoride
- SBR Styrene Butadiene Rubber
- an edge adjusting material 500 is provided between a plurality of slurries 400 , and the edge adjusting material 500 is in contact with an end portion of each of the plurality of slurries 400 .
- the edge adjusting material 500 is greater than the surface tension of the slurry 400, the force due to the difference in surface tension between the edge adjusting material 500 and the slurry 400 acts As a result, the edge adjusting material 500 is changed into a W shape, and the protrusions 410 on both ends of the slurry 400 are pulled and removed by the edge adjusting material 500 . And, the overall thickness of the slurry 400 becomes uniform.
- a device for providing the edge adjusting material 500 to the slurry 400 may be various.
- the edge adjusting material supply unit 200 may be provided as a flow path 200a (see FIG. 5 ) formed on at least one side of the shim plate 130 . That is, in the slot die coater 100 providing the slurry 400 to the substrate 300, the edge adjusting material 500 is also provided.
- the edge adjusting material 500 may be supplied to the passage 200a through the through hole 700 formed in the upper die block 120 .
- the edge adjusting material 500 may be provided as the slurry 400 through the passage 200a formed in the shim plate 130 . That is, the edge adjusting material 500 may be discharged onto the substrate so as to contact the slurry 400 .
- the shim plate 130 includes shims 131, and the passage 200a is provided as a straight groove on one side of the shims 131 of the shim plate 130.
- the shim 131 may be provided at the center 131b and both ends 131a and 131c, and the channel 200a through which the edge adjusting material 500 moves is the center 131b of the shim 131. And it may be formed on at least one of both ends (131a, 131c) of the shim meat (131).
- a plurality of slurries 400 may be provided, and an edge adjusting material 500 may be provided between the plurality of slurries 400 .
- an edge adjusting material 500 may be provided between the plurality of slurries 400 .
- edge adjusting material 500 may be provided through both ends 131a and 131c of the shim 131 of FIG. 5 to contact only one slurry 400.
- the slurry 400 and the edge adjusting material 500 may be provided through one slot die coater 100, or in another embodiment, the slot die coater 100 and the edge adjusting material 500 The slurry 400 and the edge adjusting material 500 may be provided separately.
- the edge adjusting material supply means 200 may be an edge adjusting material coater 200b, and the edge adjusting material coater 200b is provided separately from the slot die coater 100, and the slot die coater 100 is placed on the lower side of Here, the edge adjusting material 500 is discharged toward the substrate 300 prior to the slurry 400 .
- the edge adjusting material providing means 200 may also be an edge adjusting material coater 200b, and the edge adjusting material coater 200b is provided separately from the slot die coater 100.
- the slot die coater 100 is placed on the upper side of
- the slurry 400 is first discharged toward the substrate 300 and then the edge adjusting material 500 is discharged toward the substrate 300 so as to contact the slurry 400 later than the slurry 400 .
- edge adjusting material coater 200b has the same principle as the slot die coater 100 for discharging the slurry 400, the detailed description thereof is replaced with the description of the slot die coater 100.
- edge adjusting material 500 can be provided between the slurry 400 .
- the edge adjusting material 500 may be naturally cut and removed in the process of manufacturing the electrode.
- the edge adjusting material 500 since the edge adjusting material 500 includes a material for forming an electrode, it may not be removed.
- the edge adjusting material providing means 200 may be provided as a flow path 200a formed on the shim plate 130 of the slot die coater 100, and the flow path formed on the shim plate 130 Through 200a, the edge adjusting material 500 is provided to the substrate 300 so as to come into contact with the slurry 400.
- an edge adjusting material providing means 200 is provided separately from the slot die coater 100 and disposed below the slot die coater 100 to provide an edge adjusting material 500 9 as another embodiment, an edge adjusting material providing means 200 is provided separately from the slot die coater 100 and disposed above the slot die coater 100 so that the edge adjusting material 500 Provided.
- the edge adjusting material 500 provided as the slurry 400 has the same solvent as the slurry 400, but has a surface tension greater than that of the slurry 400, so it contacts the slurry 400 to form the slurry 400 of, thereby removing the protrusion 410 formed at the end of the slurry 400 to make the entire thickness of the slurry 400 uniform.
- the contents described in the electrode coating method according to an embodiment of the present invention are the electrode coating apparatus according to the above-described embodiment of the present invention. also applies to
- the method of providing the edge control material 500 to the slurry 400 may vary.
- a device may be used, or a user may directly provide the edge adjusting material 500 to the slurry 400 .
- the slurry 400 is applied to the substrate 300 of the electrode coating method, and the edge adjusting material 500 for adjusting the protrusion 410 formed on the edge of the slurry 400 in contact with the slurry 400 is applied to the slurry 400 provided by
- the order of application of the slurry 400 and the edge adjusting material 500 is not limited.
- the edge adjusting material 500 may be provided to the substrate 300 so that the edge adjusting material 500 comes into contact with the slurry 400, or the edge adjustment
- the slurry 400 may be discharged onto the substrate 300 so that the slurry 400 comes into contact with the edge adjusting material 500, or the slurry 400 and the edge
- the adjusting substance 500 may be discharged to the substrate 300 at the same time.
- a plurality of slurries 400 may be provided, and the edge adjusting material 500 may be provided between the plurality of slurries 400 .
- the present invention relates to an electrode coating device and an electrode coating method for a secondary battery, and is particularly applicable to industries related to secondary batteries.
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Abstract
Description
Claims (12)
- 기재에 슬러리를 도포하는 슬롯 다이 코터; 및상기 슬러리와 접촉하여 상기 슬러리의 단부에 형성된 돌출부를 조정하도록 상기 슬러리로 에지조정물질을 제공하는 에지조정물질제공수단을 포함하는 전극 코팅 장치.
- 제1항에 있어서,상기 슬러리는 복수로 마련되고,상기 에지조정물질은 복수의 상기 슬러리 사이에 제공되는 것을 특징으로 하는 전극 코팅 장치.
- 제2항에 있어서,상기 에지조정물질은 표면 장력 차이에 의해 상기 슬러리를 당기도록 마련되는 것을 특징으로 하는 전극 코팅 장치.
- 제3항에 있어서,상기 에지조정물질은 상기 슬러리와 동일한 용매를 사용하며, 상기 에지조정물질의 표면 장력이 상기 슬러리의 표면 장력 보다 크게 마련되는 것을 특징으로 하는 전극 코팅 장치.
- 제4항에 있어서,상기 에지조정물질은 건조 후 탈리를 방지하기 위해 미리 설정된 범위의 접착력이 구비된 바인더 계열의 재료를 포함하는 것을 특징으로 하는 전극 코팅 장치.
- 제5항에 있어서,상기 에지조정물질은 PTFE(Polytetrafluoroethylene)계, 폴리올레핀계, 폴리이미드계, 폴리우레탄계, 폴리에스테르계, PVDF(Polyvinylidene fluoride), SBR(Styrene Butadiene Rubber)계, 세라믹계 및 실리콘계 중 적어도 하나를 포함하는 것을 특징으로 하는 전극 코팅 장치.
- 제1항에 있어서,상기 슬롯 다이 코터는,적어도 2개의 다이 블록;상기 적어도 2개의 다이 블록 사이에 구비되며, 상기 토출구와 연통된 슬롯을 형성하는 심 플레이트; 및상기 적어도 2개의 다이 블록 중 적어도 하나에 형성되며 상기 슬러리를 수용하는 매니폴드를 포함하며,상기 에지조정물질제공수단은 심 플레이트에 형성된 것을 특징으로 하는 전극 코팅 장치.
- 제7항에 있어서,상기 에지조정물질제공수단은 심 플레이트의 적어도 일측에 형성된 유로로 마련되며,상기 에지조정물질은 상기 심 플레이트에 형성된 상기 유로를 통해 상기 슬러리로 토출되는 것을 특징으로 하는 전극 코팅 장치.
- 제8항에 있어서,상기 심 플레이트는 심 살을 포함하며,상기 유로는 상기 심 플레이트의 심 살의 일측에 직선 형상의 홈으로 마련되는 것을 특징으로 하는 전극 코팅 장치.
- 제1항에 있어서,상기 에지조정물질제공수단은 상기 슬롯 다이 코터와 별개로 마련되어 상기 슬롯 다이 코터의 상측 또는 하측에 배치되며 상기 기재를 향해 상기 에지조정물질을 토출하도록 마련되는 에지조정물질코터인 것을 특징으로 하는 전극 코팅 장치.
- 기재에 슬러리를 도포하는 단계; 및상기 슬러리와 접촉하여 상기 슬러리의 에지에 형성된 돌출부를 조정하는 에지조정물질을 슬러리로 제공하는 단계를 포함하는 전극 코팅 방법.
- 제11항에 있어서,상기 슬러리는 복수로 마련되고,상기 에지조정물질은 복수의 상기 슬러리 사이에 제공되는 단계를 포함하는 것을 특징으로 하는 전극 코팅 방법.
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CN202280007616.4A CN116490999A (zh) | 2021-11-12 | 2022-09-30 | 电极涂布装置及电极涂布方法 |
US18/269,685 US20240063362A1 (en) | 2021-11-12 | 2022-09-30 | Electrode Coating Device and Electrode Coating Method |
JP2023537374A JP2024500143A (ja) | 2021-11-12 | 2022-09-30 | 電極コーティング装置及び電極コーティング方法 |
EP22893031.9A EP4239706A1 (en) | 2021-11-12 | 2022-09-30 | Electrode coating apparatus and electrode coating method |
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JPH06231762A (ja) * | 1993-02-01 | 1994-08-19 | Furukawa Battery Co Ltd:The | 水素吸蔵合金粉末の分散液 |
JP2001327906A (ja) * | 2000-05-24 | 2001-11-27 | Matsushita Electric Ind Co Ltd | ストライプ塗布装置 |
CN110931703A (zh) * | 2019-11-21 | 2020-03-27 | 安徽益佳通电池有限公司 | 一种改善锂离子电池正极涂布虚边的方法 |
CN111370645A (zh) * | 2020-05-27 | 2020-07-03 | 北京小米移动软件有限公司 | 极片及其加工方法、锂离子电池 |
KR20210061578A (ko) * | 2019-11-20 | 2021-05-28 | 삼성에스디아이 주식회사 | 이차전지 전극 제조용 슬롯다이 |
KR20210156040A (ko) | 2020-06-17 | 2021-12-24 | 주식회사 더나은 | 자동차 실내 공기 향상 장치 |
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KR101877101B1 (ko) | 2015-07-28 | 2018-08-09 | 주식회사 엘지화학 | 전극 활물질 슬러리 코팅 장치 및 방법 |
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2021
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2022
- 2022-09-30 WO PCT/KR2022/014854 patent/WO2023085608A1/ko active Application Filing
- 2022-09-30 JP JP2023537374A patent/JP2024500143A/ja active Pending
- 2022-09-30 US US18/269,685 patent/US20240063362A1/en active Pending
- 2022-09-30 EP EP22893031.9A patent/EP4239706A1/en active Pending
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JPH06231762A (ja) * | 1993-02-01 | 1994-08-19 | Furukawa Battery Co Ltd:The | 水素吸蔵合金粉末の分散液 |
JP2001327906A (ja) * | 2000-05-24 | 2001-11-27 | Matsushita Electric Ind Co Ltd | ストライプ塗布装置 |
KR20210061578A (ko) * | 2019-11-20 | 2021-05-28 | 삼성에스디아이 주식회사 | 이차전지 전극 제조용 슬롯다이 |
CN110931703A (zh) * | 2019-11-21 | 2020-03-27 | 安徽益佳通电池有限公司 | 一种改善锂离子电池正极涂布虚边的方法 |
CN111370645A (zh) * | 2020-05-27 | 2020-07-03 | 北京小米移动软件有限公司 | 极片及其加工方法、锂离子电池 |
KR20210156040A (ko) | 2020-06-17 | 2021-12-24 | 주식회사 더나은 | 자동차 실내 공기 향상 장치 |
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KR20230069727A (ko) | 2023-05-19 |
EP4239706A1 (en) | 2023-09-06 |
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