WO2023096211A1 - 슬롯 다이 코터 - Google Patents
슬롯 다이 코터 Download PDFInfo
- Publication number
- WO2023096211A1 WO2023096211A1 PCT/KR2022/017292 KR2022017292W WO2023096211A1 WO 2023096211 A1 WO2023096211 A1 WO 2023096211A1 KR 2022017292 W KR2022017292 W KR 2022017292W WO 2023096211 A1 WO2023096211 A1 WO 2023096211A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- plate
- manifold
- die coater
- shim
- slot die
- Prior art date
Links
- 238000000576 coating method Methods 0.000 claims abstract description 69
- 239000011248 coating agent Substances 0.000 claims abstract description 67
- 239000007788 liquid Substances 0.000 claims abstract description 46
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000011247 coating layer Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 11
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 4
- 239000002002 slurry Substances 0.000 description 24
- 239000007772 electrode material Substances 0.000 description 14
- 239000010410 layer Substances 0.000 description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 239000011149 active material Substances 0.000 description 7
- 239000006182 cathode active material Substances 0.000 description 7
- 239000004020 conductor Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000007773 negative electrode material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000011230 binding agent Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 229910052744 lithium Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229910014689 LiMnO Inorganic materials 0.000 description 4
- -1 LiV 3 O 8 Chemical class 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000007784 solid electrolyte Substances 0.000 description 4
- 229910015643 LiMn 2 O 4 Inorganic materials 0.000 description 3
- 239000006183 anode active material Substances 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 2
- 229910015645 LiMn Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- FBOUIAKEJMZPQG-AWNIVKPZSA-N (1E)-1-(2,4-dichlorophenyl)-4,4-dimethyl-2-(1,2,4-triazol-1-yl)pent-1-en-3-ol Chemical compound C1=NC=NN1/C(C(O)C(C)(C)C)=C/C1=CC=C(Cl)C=C1Cl FBOUIAKEJMZPQG-AWNIVKPZSA-N 0.000 description 1
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 description 1
- 229910008163 Li1+x Mn2-x O4 Inorganic materials 0.000 description 1
- 229910013709 LiNi 1-x M Inorganic materials 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000265 Polyparaphenylene Polymers 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- QDDVNKWVBSLTMB-UHFFFAOYSA-N [Cu]=O.[Li] Chemical compound [Cu]=O.[Li] QDDVNKWVBSLTMB-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical class [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910021383 artificial graphite Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000011203 carbon fibre reinforced carbon Substances 0.000 description 1
- 229910021393 carbon nanotube Inorganic materials 0.000 description 1
- 239000002041 carbon nanotube Substances 0.000 description 1
- 239000006231 channel black Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910000428 cobalt oxide Inorganic materials 0.000 description 1
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- NJLLQSBAHIKGKF-UHFFFAOYSA-N dipotassium dioxido(oxo)titanium Chemical compound [K+].[K+].[O-][Ti]([O-])=O NJLLQSBAHIKGKF-UHFFFAOYSA-N 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009501 film coating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 239000006232 furnace black Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000001863 hydroxypropyl cellulose Substances 0.000 description 1
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 description 1
- 229940071676 hydroxypropylcellulose Drugs 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003273 ketjen black Substances 0.000 description 1
- 239000006233 lamp black Substances 0.000 description 1
- 229910000625 lithium cobalt oxide Inorganic materials 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910002102 lithium manganese oxide Inorganic materials 0.000 description 1
- QEXMICRJPVUPSN-UHFFFAOYSA-N lithium manganese(2+) oxygen(2-) Chemical class [O-2].[Mn+2].[Li+] QEXMICRJPVUPSN-UHFFFAOYSA-N 0.000 description 1
- BFZPBUKRYWOWDV-UHFFFAOYSA-N lithium;oxido(oxo)cobalt Chemical compound [Li+].[O-][Co]=O BFZPBUKRYWOWDV-UHFFFAOYSA-N 0.000 description 1
- VROAXDSNYPAOBJ-UHFFFAOYSA-N lithium;oxido(oxo)nickel Chemical compound [Li+].[O-][Ni]=O VROAXDSNYPAOBJ-UHFFFAOYSA-N 0.000 description 1
- URIIGZKXFBNRAU-UHFFFAOYSA-N lithium;oxonickel Chemical compound [Li].[Ni]=O URIIGZKXFBNRAU-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- AMWRITDGCCNYAT-UHFFFAOYSA-L manganese oxide Inorganic materials [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 1
- PPNAOCWZXJOHFK-UHFFFAOYSA-N manganese(2+);oxygen(2-) Chemical class [O-2].[Mn+2] PPNAOCWZXJOHFK-UHFFFAOYSA-N 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000002116 nanohorn Substances 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- 229910000480 nickel oxide Inorganic materials 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000002210 silicon-based material Substances 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920005608 sulfonated EPDM Polymers 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical group 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
Definitions
- the present invention relates to a slot die coater, and more particularly to a slot die coater comprising an improved shim plate.
- This application is an application claiming priority to Korean Patent Application No. 10-2021-0166218 filed on November 26, 2021 and Korean Patent Application No. 10-2022-0068483 filed on June 3, 2022 , All contents disclosed in the specification and drawings of the corresponding application are incorporated into this application by reference.
- the electrode assembly has a form in which a positive electrode, a separator, and a negative electrode are stacked at least once, and the positive electrode and the negative electrode are prepared by coating and drying a positive electrode active material slurry and a negative electrode active material slurry on a current collector made of aluminum foil and copper foil, respectively.
- These secondary batteries include lithium-containing manganese oxides, such as lithium-containing cobalt oxide (LiCoO 2 ) of layered crystal structure, LiMnO 2 of layered crystal structure, LiMn 2 O 4 of spinel crystal structure, and lithium-containing nickel oxide (LiNiO) as cathode active materials. 2 ) is commonly used.
- lithium-containing manganese oxides such as lithium-containing cobalt oxide (LiCoO 2 ) of layered crystal structure, LiMnO 2 of layered crystal structure, LiMn 2 O 4 of spinel crystal structure, and lithium-containing nickel oxide (LiNiO) as cathode active materials. 2
- carbon-based materials are mainly used as negative electrode active materials, and recently, due to an increase in demand for high-energy lithium secondary batteries, mixed use of silicon-based materials and silicon oxide-based materials having an effective capacity 10 times or more than carbon-based materials is being considered.
- the positive electrode active material slurry and the negative active material slurry must be evenly coated on the current collector
- FIG. 1 shows an example of a coating method using a conventional slot die coater.
- FIG. 2 is a cross-sectional view of the slot die coater taken along the MD direction (traveling direction of the current collector) as a II-II' cross-sectional view of FIG.
- the electrode active material slurry discharged from the slot die coater 30 is applied on the current collector 20 transported by the coating roll 10 will spread
- the electrode active material slurry discharged from the slot die coater 30 is widely spread on one surface of the current collector 20 to form an electrode active material layer.
- the slot die coater 30 includes two die blocks 32 and 34 and a slot 36 is formed between the two die blocks 32 and 34, and the manifold 38 has a feed unit (not shown).
- the electrode active material slurry supplied from) is accommodated, and the electrode active material slurry is discharged through the discharge port 40 communicating with the slot 36 to form an electrode active material layer.
- Reference numerals 42 and 44 denote die lips that are front ends of the die blocks 32 and 34, respectively, and reference numeral 46 denotes a land portion.
- the coating width of the electrode active material layer coated on the current collector 20 is determined by the width of the slot 36 .
- various coating widths can be implemented by changing the shim plate 50 that determines the width of the slot 36 and the inner space of the manifold 38 .
- FIG. 3 is a view showing a conventional shim plate.
- the shim plate 50 is placed on the manifold 38 in the die block 32 and used.
- the shim plate 50 is a sheet-like member having a thickness defining a slot gap. Usually, as shown in FIG. 3, the end of the shim plate 50 is aligned with the die lip 42 for use.
- Reference numeral 60 denotes an inlet through which the electrode active material slurry is supplied from the feed unit, and is usually formed in the bottom center portion of the manifold 38.
- FIG. 4 is a view showing a conventional shim plate offset.
- the control of the shim offset (O) is to move the end of the shim plate 50 backward relative to the die lip 42, which is the front end of the die block 32.
- Control of the seam offset (O) is an essential element for the coating width process capability considering the slurry discharge pressure, etc., but conventionally, it is difficult to precisely control the seam offset (O) and it is difficult to secure reproducibility.
- FIG. 5 is a view showing a conventional valve shim.
- valve shim 50 of FIG. 3 When the shim plate 50 of FIG. 3 is changed to use a valve shim 50' that controls the loading profile in the width direction by blocking the entry passage of the land portion 46 in the manifold 38 of the die block 32 There is also The valve shim 50' further includes a sheet-like valve portion 52 at the center of the shim plate 50. However, there is a limit to controlling the loading profile by the existing valve shim 50'.
- the present invention has been devised in consideration of the above problems, and an object of the present invention is to provide a slot die coater including an improved shim plate.
- the slot die coater of the present invention for solving the above problems includes a lower die block and an upper die block; a shim plate provided between the lower die block and the upper die block to form a slot; And A slot die coater provided in the lower die block and including a manifold accommodating the coating liquid, and discharging and applying the coating liquid onto a substrate through a discharge port communicating with the slot, wherein the shim plate is applied on the substrate It includes a plate-like member having an open portion by cutting at least one region to determine the coating width of the coating layer to be coated, and a structure protruding from the plate-like member and inserted into the manifold.
- the structure may be designed integrally with the plate-like member.
- the lower surface of the upper die block and the upper surface of the shim plate may be coupled to each other without a gap, and the upper surface of the lower die block and the lower surface of the shim plate may be coupled to each other without a gap.
- the upper surface of the shim plate may be flat and the structure may protrude from a part of the lower surface of the shim plate.
- the plate-like member may include a first part serving as a base and at least two second parts extending from the first part, and the second parts may be connected to the same side of the first part and extend in the same direction. there is.
- the structure may be a side structure that is inserted into both ends of the manifold at a portion where both ends of the plate-like member come into contact with the manifold to secure reproducibility of the position of the shim plate.
- the side structure may have the same cross-sectional shape as the manifold and fit snugly into the manifold including the bottom of the manifold.
- the plate-like member includes a first portion serving as a base and at least two second portions extending from the first portion, the second portion being connected to the same side of the first portion and in the same direction.
- the side structure may protrude downward from an inner side wall close to the manifold in the second part.
- the structure may be a plate structure that extends from a central portion of the plate-like member toward the discharge port and extends thicker than the plate-like member to have a thickness inserted into the manifold.
- the plate-like member includes a first part serving as a base and at least two second parts extending from the first part, the second parts being connected to the same side of the first part and extending in the same direction.
- the valve structure may extend from the central portion of the first portion in the same direction as the second portion and protrude downward.
- the structure may be a structure for branching the coating liquid from the inlet formed at the bottom of the manifold into two branches.
- the diverging structure may include an extension portion extending downward along a sidewall of the manifold and a bottom portion connected to the extension portion and placed along the bottom of the manifold.
- the diverging structure may further include a plurality of shim injection holes in the bottom portion.
- the plurality of shim injection ports may have diameters that increase from the center to the side.
- the plate-like member includes a first part serving as a base and at least two second parts extending from the first part, the second part being connected to the same side of the first part and in the same direction.
- the extension protrudes downward from the first portion, and the bottom portion may be integrally connected to the lower end of the extension portion.
- the bottom part may further include a plurality of shim injection ports whose diameters increase from the center to the side, and the shim injection ports may have a circular shape.
- controlling the widthwise loading profile is facilitated.
- manifold shape is difficult to change after initial molding. According to another aspect of the present invention, even the manifold area of the slot die coater can be reconfigured through the shape of the shim plate without changing the manifold.
- the present invention provides a slot die coater including a shim plate that is not simply a sheet-like member, but includes a new functional structure above and below a plate-like member.
- a new functional structure is included below the plate member to utilize the manifold structure below the shim plate.
- the functional structure is mainly related to the manifold, securing reproducibility of the position of the shim plate itself or reorganizing the flow structure in the manifold to form a flow structure that was impossible with conventional sheet-type members, as well as improving the quality of coating width and loading process capability.
- An electrode active material layer can be stably formed by using the slot die coater according to the present invention.
- FIG. 1 shows an example of a coating method using a conventional slot die coater.
- FIG. 2 is a cross-sectional view of the slot die coater taken along the MD direction (traveling direction of the current collector) as a II-II' cross-sectional view of FIG.
- FIG. 3 is a view showing a conventional shim plate.
- FIG. 4 is a view showing a conventional shim plate offset.
- FIG. 5 is a view showing a conventional valve shim.
- FIG. 6 is a cross-sectional view of a slot die coater according to an embodiment of the present invention.
- FIG. 7 is a bottom perspective view showing an example of a shim plate that may be included in the slot die coater of the present invention.
- FIG. 8 is a perspective view of the shim plate and lower die block of FIG. 7;
- Figure 9 is a side view of the lower die block with the shim plate of Figure 7;
- FIG. 10 is a bottom perspective view showing another example of a shim plate that may be included in the slot die coater of the present invention.
- Fig. 11 is a perspective view of the shim plate and lower die block of Fig. 10;
- FIG. 12 is a bottom perspective view showing another example of a shim plate that may be included in the slot die coater of the present invention.
- FIG. 13 is a perspective view of the shim plate and lower die block of FIG. 12;
- FIG. 14 is a perspective view of another example of a shim plate and a lower die block that may be included in the slot die coater of the present invention.
- the slot die coater of the present invention is a device having a slot and coating a coating liquid on a substrate through the slot.
- a 'substrate' to be described below is a current collector, and a 'coating liquid' is an electrode active material slurry.
- the substrate may be a porous support constituting the separator, and the coating liquid may be an organic material. That is, if thin film coating is required, the substrate and the coating liquid may be of any kind.
- 'front' indicates a direction toward the discharge port, and 'rear' indicates the opposite direction.
- the present invention is to secure reproducibility in seam offset of a slot die coater.
- the present invention proposes a shim plate that is not simply a sheet-like member, but includes a new functional structure above and below a plate-like member.
- a new functional structure is included below the plate member to utilize the manifold structure below the shim plate.
- the functional structure is mainly related to the manifold, securing the reproducibility of the position of the shim plate itself or reconstructing the flow structure in the manifold to form a flow structure that was impossible with the conventional sheet-like shim plate, as well as quality of coating width and loading process capability. Secure the possibility of improvement.
- FIG. 6 is a cross-sectional view of a slot die coater according to an embodiment of the present invention.
- the slot die coater 100 of the present invention includes a lower die block 110 and an upper die block 120.
- the shim plate 130 is provided between the lower die block 110 and the upper die block 120 to form the slot 101 .
- a manifold 115 is provided in the lower die block 110 .
- the manifold 115 accommodates the coating liquid 150 .
- the slot die coater 100 discharges and applies the coating liquid 150 onto the substrate 190 through the discharge port 101a communicating with the slot 101 .
- the slot die coater 100 may further include a die block other than the lower die block 110 and the upper die block 120 .
- Two or more slots may be formed by including the shim plate 130 between the two die blocks.
- the lower die block 110 and the upper die block 120 are referred to based on the shim plate 130, and when the number of die blocks increases, the lower die block 110 or the upper die block 120 is the middle die block. It could be.
- the slot die coater 100 is installed with the direction (X direction) of discharging the electrode active material slurry, which is a coating liquid, almost horizontal (approximately: ⁇ 5 degrees).
- X direction the direction of discharging the electrode active material slurry
- Y direction the direction of discharging the electrode active material slurry upward
- a slot 101 is formed between two die blocks 110 and 120 facing each other.
- the shim plate 130 is interposed and a gap is provided between them, thereby forming a slot 101 corresponding to a passage through which the coating liquid 150 can flow.
- the thickness of the shim plate 130 determines the vertical width (Y direction, slot gap) of the slot 101 .
- the shim plate 130 includes a plate-like member having an opening by cutting at least one region to determine the coating width of the coating layer applied on the substrate 190, and a plate-like member protruding from the plate-like member and being inserted into the manifold 115. It is characterized by including a structure, and the structure may be designed integrally with the plate-shaped member. The above structures will be described in detail next.
- One region of the shim plate 130 is cut to have an open portion, and may be interposed in the remaining portion except for one side of the edge region of the opposite surface of each of the die blocks 110 and 120 . Accordingly, the discharge port 101a through which the coating liquid 150 can be discharged to the outside is formed between the die lips 111 and 131, which are the front ends of the die blocks 110 and 120, respectively.
- the discharge port 101a may be referred to as a place formed by spacing the die lips 111 and 131 apart.
- the shim plate 130 functions as a gasket to prevent the coating liquid 150 from leaking through the gap between the two die blocks 110 and 120, except for the area where the discharge port 101a is formed. It is preferable to be made of a material having sealing properties as well.
- One of the two die blocks 110 and 120 has a manifold 115 having a predetermined depth and communicating with the slot 101 .
- the manifold 115 is provided in the lower die block 110 as an example.
- the manifold 115 is connected to an externally installed coating liquid supply chamber (not shown) through a supply pipe to receive the coating liquid 150 .
- the coating liquid 150 flows along the slot 101 and is discharged to the outside through the outlet 101a.
- the lower surface of the upper die block 110 and the upper surface of the shim plate 130 are coupled to each other without a gap, and the upper surface of the lower die block 120 and the lower surface of the shim plate 130 have a gap between each other.
- the coating roll 180 rotatably provided is disposed in front of the slot die coater 100, and the substrate 190 to be coated is rotated by rotating the coating roll 180 While running, the coating liquid 150 may be discharged and applied to the substrate 190 by continuously contacting the surface of the substrate 190 .
- the pattern coating may be intermittently formed on the substrate 190 by alternately supplying and stopping the coating liquid 150 .
- the shim plate 130 determines the coating width of the coating layer applied on the substrate 190, and according to the present invention, it is characterized by including a plate-like member and a structure.
- a plate-like member As an embodiment of the structure, those described with reference to FIGS. 7 to 14 are possible.
- 7 to 14 are views for explaining shim plates according to various embodiments that may be included in the slot die coater of the present invention.
- the structure is for realizing the aforementioned functional structure, and there may be three types as illustrated in FIGS. 7, 10, and 12, and these structures may be used alone or in various combinations. For example, Figure 14 combines all three of these structures.
- the present invention further includes a structure extending above and / or below the plate-like member, which is the basis of the shim plate, preferably into the manifold.
- the difference is that it has a structure on a three-dimensional solid.
- the three-dimensional solid structure additionally causes partial deformation of the shim plate of the structure on a two-dimensional plane, so that the structure has a three-dimensional three-dimensional structure only while the deformation force is applied, and when the deformation force is removed, it returns to the two-dimensional plane. It is different from the case of restoration to the structure.
- a three-dimensional structure is provided by the shape of the shim plate itself, and there is no deformation of the shim plate before and after fastening the shim plate to the slot die coater.
- the shim plate 130 may be made of plastic or metal, but the present invention is not limited thereto.
- the shim plate 130 may be, for example, a resin sheet such as Teflon or polyester, or a metal sheet such as copper or aluminum.
- the shim plate 130 may be coupled and fixed to at least one of the two die blocks 110 and 120 through, for example, screws, but the present invention is not limited thereto.
- FIG. 7 is a bottom perspective view showing an example of a shim plate that may be included in the slot die coater of the present invention.
- 8 is a perspective view of the shim plate and lower die block of FIG. 7;
- Figure 9 is a side view of the lower die block with the shim plate of Figure 7;
- the shim plate 130 includes a plate-like member 132 having at least one area cut and having an opening 130a so as to determine the coating width of the coating layer applied on the substrate 190.
- a side structure 134 protruding from the plate-shaped member 132 and inserted into the manifold 115 is included.
- the upper surface of the shim plate 130, that is, the surface facing the upper die block 110 is flat, and the lower surface of the shim plate 130, the side structure 134 is formed on a part of the surface facing the lower die block 120. It may protrude.
- Reference numeral 117 denotes an inlet through which the electrode active material slurry is supplied from the feed unit and is formed in the bottom center portion of the manifold 115 .
- the side structure 134 is inserted into both ends of the manifold 115 at a portion where both ends of the plate-like member 132 come into contact with the manifold 115 to ensure reproducibility of the position of the shim plate 130 .
- the side structures 134 may be inserted into both ends of the manifold 115 by protruding from the plate-like member 132 at portions in contact with the manifold 115 at both ends of the plate-like member 132 .
- the plate-like member 132 may include a first portion 132a serving as a base and at least two second portions 132b extending from the first portion 132a.
- the first part 132a is a part placed on the rear part of the lower die block 120 in the shim plate 130 as well.
- At least two second portions 132b are provided so that the shim plate 130 is interposed in the remaining portion except for one side of the edge areas of the opposite surfaces of the upper die block 110 and the lower die block 120, respectively.
- the second portion 132b is illustrated as an example of two. A space between two adjacent second portions 132b becomes an open portion 130a. If the number of second portions 132b is further increased, two or more coating layers may be formed side by side on the substrate 190 . That is, stripe pattern coating can be performed.
- the present invention is not limited by the number of second parts 132b.
- the second part 132b is connected to the same side of the first part 132a and extends in the same direction.
- the second portion 132b is a portion extending from the shim plate 130 toward the front portion of the lower die block 120 .
- the side structure 134 protrudes downward from the inner side wall close to the manifold 115 in the second portion 132b. Between the second part 132b and the side structure 134 may be integrally formed. That is, there is no gap or separation between the second part 132b and the side structure 134 . Accordingly, unnecessary flow of the coating liquid between the side structure 134 and the second portion 132b may be prevented.
- the plate-like member 132 is a U-shaped plate-like member and may have a shape similar to the conventional shim plate described in FIG. 3 .
- the shim plate 130 of the present invention includes a side structure 134 protruding downward from the plate-like member 132 to be inserted into the manifold 115 under the shim plate 130 on the plate-like member 132. It is further included at a position close to both side walls of the fold 115 (parts placed on both sides in the width direction of the slot die coater). By inserting the side structure 134 into the manifold 115, assembly accuracy increases when assembling the shim plate 130.
- the side structure 134 has the same cross-sectional shape as the manifold 115 and can be fitted into the manifold 115 including the bottom of the manifold 115 to be fixed in position, and around the side structure 134 It is possible to prevent unnecessary flow of the coating liquid from occurring.
- the side structure 134 may also be formed in a semicircular shape corresponding thereto.
- the side structure 134 may also be trapezoidal correspondingly.
- the plate-like member 132 and the side structure 134 may be integral with each other. That is, the side structure 134 may be integrally formed from the beginning when the shim plate 130 is manufactured, rather than being formed by additionally attaching or attaching a separate member to the plate-like member 132 .
- the plate-like member 132 and the side structure 134 are seamlessly connected without a joint. In this way, the manufacturing process is not cumbersome, and there is an advantage in that it is not necessary to consider and manage the bonding force between the plate-like member 132 and the side structure 134, which must be considered when they are separate structures, and is structurally robust. In addition, it is possible to prevent slurry from being unnecessarily caught between the plate-like member 132 and the side structure 134 .
- FIG. 10 is a bottom perspective view showing another example of a shim plate that may be included in the slot die coater of the present invention.
- Fig. 11 is a perspective view of the shim plate and lower die block of Fig. 10;
- the structure to be described in FIGS. 10 and 11 is a plate structure extending below the plate-like member.
- the shim plate 130 includes a plate member 132 having at least one area cut and having an opening 130a so as to determine the coating width of the coating layer applied on the substrate 190.
- It includes a valve structure 136 that protrudes from the plate-like member 132 and is inserted into the manifold 115 .
- the valve structure 136 extends from the center of the plate-like member 132 toward the discharge port 101a and has a thickness sufficient to be inserted into the manifold 115 .
- the valve structure 136 is thicker than the plate-like member 132 .
- the valve structure 136 may be referred to as a reinforced valve core because the valve is further expanded into the manifold 115 to have a predetermined thickness.
- the plate-like member 132 includes a first portion 132a serving as a base and a second portion 132b extending from the first portion 132a.
- the valve structure 136 extends from the central portion of the first portion 132a in the same direction as the second portion 132b and protrudes downward.
- the first portion 132a and the valve structure 136 may be integrally formed. That is, there is no gap or separation between the first portion 132a and the valve structure 136 . Accordingly, unnecessary flow of the coating liquid between the valve structure 136 and the first portion 132a may be prevented.
- valve shim 50' In the conventional valve shim 50', the shim plate 50 and the sheet-like valve portion 52 have the same thickness. That is, both the upper and lower surfaces of the valve shim 50' are flat.
- the valve shim 50' is only used to change the flow of the slurry to control the loading amount.
- the valve structure 136 provided in the shim plate 130 of the present invention is thicker than the plate-like member 132 so as to protrude from the plate-like member 132, and thus can have a relatively greater mass.
- the strength of the valve structure 136 is increased compared to the prior art, and since it has a structure including a step that is caught on the manifold 115, the valve structure 136 is not easily deformed or damaged even if it is placed under force in any direction. There is also a position fixation effect. As such, the valve structure 136 has an effect of having superior structural strength.
- the valve structure 136 provides a flow control function to the shim plate 130 .
- the valve structure 136 may have a shape in which a central portion most protrudes toward the outlet 101a. Based on the central portion of the valve structure 136, the flow path at the central portion may be narrower than the flow path at both edges. Then, while the coating liquid 150 passes through the shim plate 130, the pressure in the central portion increases, and the coating liquid 150 moves along the valve structure 136 to both edges.
- the plate structure 136 may have a polygonal structure with an inclination or a gentle round structure, and its shape may be variously adjusted depending on the physical properties of the coating liquid and process conditions. According to the shim plate 130 including the valve structure 136, it is easy to control the loading profile in the width direction.
- the plate-like member 132 and the plate structure 136 may have an integrated structure. That is, the valve structure 136 may be integrally formed from the beginning when the shim plate 130 is manufactured, rather than being formed by additionally attaching or adhering a separate member to the plate-like member 132 .
- the plate-like member 132 and the valve structure 136 are seamlessly connected without a joint. In this way, the manufacturing process is not cumbersome, and there is an advantage in that it is not necessary to consider and manage the bonding force between the plate-like member 132 and the plate structure 136 when they are separate structures, and it is structurally robust. In addition, it is possible to prevent slurry from being unnecessarily caught between the plate-like member 132 and the valve structure 136 .
- FIG. 12 is a bottom perspective view showing another example of a shim plate that may be included in the slot die coater of the present invention
- FIG. 13 is a perspective view of the shim plate and the lower die block of FIG. 12 . What is to be explained in FIGS. 12 and 13 corresponds to a full-scale reconfiguration of the manifold flow path.
- the shim plate 130 includes a plate member 132 having at least one region cut and having an opening 130a so as to determine the coating width of the coating layer applied on the substrate 190 .
- It includes a diverging structure 138 that protrudes from the plate-like member 132 and is inserted into the manifold 115.
- the branching structure 138 branches the coating liquid from the inlet 117 formed at the bottom of the manifold 115 into two branches.
- the inlet 60 is provided in the bottom center portion of the conventional manifold 38. Due to the location of the inlet 60, in most cases, the loading of the middle part is high in the prior art.
- the coating liquid extending into the manifold 115 and coming out of the inlet 117 is branched into both branches to induce the coating liquid to move along the branching structure 138 so that loading is performed on either side. You can control it so it doesn't rise.
- the diverging structure 138 includes an extension 138a extending downward along the sidewall of the manifold 115 and a bottom portion 138b connected to the extension 138a and placed along the bottom of the manifold 115.
- the bottom portion 138b includes a plurality of shim injection holes 139a, 139b, 139c, and 139d whose diameter increases from the center to the side.
- the plate-like member 132 includes a first portion 132a serving as a base and a second portion 132b extending from the first portion 132a.
- the extension part 138a may protrude downward from the first part 132a, and the bottom part 138b may be integrally connected to the lower end of the extension part 138a.
- the shim injection ports 139a, 139b, 139c, and 139d may be circular, for example.
- the first portion 132a and the extension portion 138a may be integrally formed. That is, there is no gap or separation between the first part 132a and the extension part 138a. Therefore, unnecessary flow of the coating liquid between the extension part 138a and the first part 132a can be prevented.
- the manifold 115 shape is difficult to change after initial molding. According to the present invention, there is an effect of reconstructing up to the manifold 115 area of the slot die coater 100 through the shim plate 130 including the branching structure 138 without changing the manifold 115.
- FIG. 14 shows a shim plate 130 that includes all three structures 134, 136, and 138 described above. If necessary, the side structure 134 of FIG. 7 and the branching structure 138 of FIG. 12 are combined, or the side structure 134 of FIG. 7 and the plate structure 136 of FIG. 10 are combined, or otherwise
- the shim plate 130 may be prepared by combining the valve structure 136 of FIG. 10 and the branching structure 138 of FIG. 12 .
- An electrode active material layer can be stably formed using the slot die coater 100 and modifications thereof described above. For example, it can be applied to the production of a cathode of a secondary battery by coating the cathode active material slurry.
- the cathode includes a current collector and a cathode active material layer formed on a surface of the current collector.
- the current collector such as Al or Cu, exhibits electrical conductivity, and may be appropriately used according to the polarity of current collector electrodes known in the field of secondary batteries.
- the cathode active material layer may further include at least one of a plurality of cathode active material particles, a conductive material, and a binder.
- the positive electrode may further include various additives for the purpose of supplementing or improving electrochemical properties.
- the active material is not limited to a specific component as long as it can be used as a cathode active material of a lithium ion secondary battery.
- Non-limiting examples thereof include layered compounds such as lithium manganese composite oxides (LiMn 2 O 4 , LiMnO 2 , etc.), lithium cobalt oxide (LiCoO 2 ), lithium nickel oxide (LiNiO 2 ), or substituted with one or more transition metals.
- the conductive material may be typically added in an amount of 1 wt% to 20 wt% based on the total weight of the mixture including the active material.
- the conductive material is not particularly limited as long as it has conductivity without causing chemical change in the battery, and examples thereof include graphite such as natural graphite or artificial graphite; carbon black such as carbon black, acetylene black, ketjen black, channel black, furnace black, lamp black, and summer black; conductive fibers such as carbon fibers and metal fibers; metal powders such as carbon fluoride, aluminum, and nickel powder; conductive whiskers such as zinc oxide and potassium titanate; conductive metal oxides such as titanium oxide; It may include one or a mixture of two or more selected from conductive materials such as polyphenylene derivatives.
- the binder is not particularly limited as long as it is a component that assists in the binding of the active material and the conductive material and the binding to the current collector.
- the binder may be typically included in the range of 1wt% to 30wt%, or 1wt% to 10wt% compared to 100wt% of the electrode layer.
- the negative electrode active material slurry By coating the negative electrode active material slurry using the slot die coater 100 of the present invention, it may be applied to manufacturing a negative electrode of a secondary battery.
- the negative electrode includes a current collector and a negative active material layer formed on a surface of the current collector.
- the anode active material layer may further include at least one of a plurality of anode active material particles, a conductive material, and a binder.
- the negative electrode may further include various additives for the purpose of supplementing or improving electrochemical properties.
- the anode active material is a carbon material such as graphite, amorphous carbon, diamond-like carbon, fullerene, carbon nanotube, or carbon nanohorn, a lithium metal material, an alloy material such as silicon or tin, Nb 2 O 5 , Li 5 Ti 4 O Oxide-based materials such as 12 and TiO 2 , or composites thereof can be used.
- the conductive material, the binder, and the current collector may refer to the contents described for the positive electrode.
- An active material slurry containing such a positive active material or negative active material has a very high viscosity.
- the viscosity may be greater than 1000 cps.
- the viscosity of the active material slurry for forming a secondary battery electrode may be 2000 cps to 30000 cps.
- the negative electrode active material slurry may have a viscosity of 2000 cps to 4000 cps.
- the cathode active material slurry may have a viscosity of 8000 cps to 30000 cps.
- the slot die coater 100 of the present invention is a coating liquid having a lower viscosity than this, for example, a photosensitive emulsion liquid, a magnetic liquid, a liquid that imparts antireflection or antiglare properties, It is different from the structure of devices that apply ordinary resin liquids, such as liquids that give a viewing angle enlargement effect and pigment liquids for color filters, and are not devices that can be reached by changing them.
- the slot die coater 100 of the present invention is for applying an active material slurry that may contain an active material having a particle size of, for example, an average particle size of around 10 ⁇ m, so that other coating liquids that do not contain particles of this size are applied There is also a difference in the structure of the device that does it, and it is not a device that can be reached by changing it.
- the slot die coater 100 of the present invention is optimized as a coater for manufacturing electrodes.
- slot die coater 110 upper die block
- valve structure 138 branching structure
- extension part 138b bottom part
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Coating Apparatus (AREA)
Abstract
Description
Claims (16)
- 하부 다이 블록과 상부 다이 블록;상기 하부 다이 블록과 상부 다이 블록 사이에 구비되어 슬롯을 형성하는 심 플레이트; 및상기 하부 다이 블록에 구비되며 코팅액을 수용하는 매니폴드를 포함하여,상기 슬롯과 연통된 토출구를 통해 상기 코팅액을 기재 상에 토출하여 도포하는 슬롯 다이 코터로서,상기 심 플레이트는 상기 기재 상에 도포되는 코팅층의 코팅폭을 결정하도록 적어도 일 영역이 절개되어 개방부를 구비하는 판상 부재와, 상기 판상 부재로부터 돌출되어 상기 매니폴드 내부로 삽입되는 구조물을 포함하는 슬롯 다이 코터.
- 제1항에 있어서, 상기 구조물은 상기 판상 부재와 일체형 설계된 것을 특징으로 하는 슬롯 다이 코터.
- 제1항에 있어서, 상기 매니폴드의 뒤쪽과 앞쪽에서 상기 상부 다이 블록의 하면과 상기 심 플레이트의 상면이 서로 틈새 없이 결합하고 상기 하부 다이 블록의 상면과 상기 심 플레이트의 하면이 서로 틈새없이 결합하는 것을 특징으로 하는 슬롯 다이 코터.
- 제1항에 있어서, 상기 심 플레이트의 상면은 평평하고 상기 심 플레이트의 하면 일부에 상기 구조물이 돌출되어 있는 것을 특징으로 하는 슬롯 다이 코터.
- 제1항에 있어서, 상기 판상 부재는 베이스가 되는 제1 부분과 상기 제1 부분에서부터 연장되는 적어도 2개의 제2 부분을 포함하고, 상기 제2 부분은 상기 제1 부분의 같은 측에 연결되고 동일 방향으로 연장되는 것을 특징으로 하는 슬롯 다이 코터.
- 제1항에 있어서, 상기 구조물은 상기 판상 부재의 양 끝단에 상기 매니폴드와 접촉되는 부위에 상기 매니폴드의 양 끝단에 삽입되어 상기 심 플레이트의 위치 재현성을 확보하는 사이드 구조물인 것을 특징으로 하는 슬롯 다이 코터.
- 제6항에 있어서, 상기 사이드 구조물은 상기 매니폴드의 단면 형상과 동일한 형상으로 하여 상기 매니폴드의 바닥을 포함해 상기 매니폴드 안에 꼭맞게 끼워지는 것을 특징으로 하는 슬롯 다이 코터.
- 제6항에 있어서, 상기 판상 부재는 베이스가 되는 제1 부분과 상기 제1 부분에서부터 연장되는 적어도 2개의 제2 부분을 포함하고, 상기 제2 부분은 상기 제1 부분의 같은 측에 연결되고 동일 방향으로 연장되며, 상기 사이드 구조물은 상기 제2 부분에서 상기 매니폴드에 가까운 안쪽 측벽에서 하방으로 연장 돌출되어 있는 것을 특징으로 하는 슬롯 다이 코터.
- 제1항에 있어서, 상기 구조물은 상기 판상 부재의 중앙부에서 상기 토출구 쪽으로 연장되며 상기 매니폴드 내부로 삽입되는 두께를 갖게 상기 판상 부재보다 두껍게 확장된 판막 구조물인 것을 특징으로 하는 슬롯 다이 코터.
- 제9항에 있어서, 상기 판상 부재는 베이스가 되는 제1 부분과 상기 제1 부분에서부터 연장되는 적어도 2개의 제2 부분을 포함하고, 상기 제2 부분은 상기 제1 부분의 같은 측에 연결되고 동일 방향으로 연장되며, 상기 판막 구조물은 상기 제1 부분의 중앙부에서 상기 제2 부분과 동일 방향으로 연장되며 하방으로 연장 돌출되어 있는 것을 특징으로 하는 슬롯 다이 코터.
- 제1항에 있어서, 상기 구조물은 상기 매니폴드의 바닥에 형성된 주입구에서 나오는 코팅액을 양 갈래로 분기용 구조물인 것을 특징으로 하는 슬롯 다이 코터.
- 제11항에 있어서, 상기 분기용 구조물은 상기 매니폴드의 측벽을 따라 하방으로 연장된 연장부와 상기 연장부에 연결되고 상기 매니폴드의 바닥을 따라 놓이는 바닥부를 구비하는 것을 특징으로 하는 슬롯 다이 코터.
- 제12항에 있어서, 상기 바닥부에 다수의 심 주입구를 더 포함하는 것을 특징으로 하는 슬롯 다이 코터.
- 제13항에 있어서, 상기 다수의 심 주입구는 중심부에서 사이드로 갈수록 직경이 커지는 것을 특징으로 하는 슬롯 다이 코터.
- 제12항에 있어서, 상기 판상 부재는 베이스가 되는 제1 부분과 상기 제1 부분에서부터 연장되는 적어도 2개의 제2 부분을 포함하고, 상기 제2 부분은 상기 제1 부분의 같은 측에 연결되고 동일 방향으로 연장되며, 상기 연장부는 상기 제1 부분에서 하방으로 연장 돌출되고 상기 바닥부는 상기 연장부의 하단과 일체로 연결되어 있는 것을 특징으로 하는 슬롯 다이 코터.
- 제15항에 있어서, 상기 바닥부에 중심부에서 사이드로 갈수록 직경이 커지는 다수의 심 주입구를 더 포함하고, 상기 심 주입구는 원형인 것을 특징으로 하는 슬롯 다이 코터.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22898893.7A EP4275799A1 (en) | 2021-11-26 | 2022-11-04 | Slot die coater |
JP2023537693A JP2024503796A (ja) | 2021-11-26 | 2022-11-04 | スロットダイコーター |
CN202280008307.9A CN116636027A (zh) | 2021-11-26 | 2022-11-04 | 狭缝模具涂布机 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2021-0166218 | 2021-11-26 | ||
KR20210166218 | 2021-11-26 | ||
KR1020220068483A KR20230078481A (ko) | 2021-11-26 | 2022-06-03 | 슬롯 다이 코터 |
KR10-2022-0068483 | 2022-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023096211A1 true WO2023096211A1 (ko) | 2023-06-01 |
Family
ID=86539845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR2022/017292 WO2023096211A1 (ko) | 2021-11-26 | 2022-11-04 | 슬롯 다이 코터 |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP4275799A1 (ko) |
JP (1) | JP2024503796A (ko) |
WO (1) | WO2023096211A1 (ko) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4259055A (en) * | 1979-10-01 | 1981-03-31 | E. I. Du Pont De Nemours And Company | Coating apparatus |
JP2006102598A (ja) * | 2004-10-01 | 2006-04-20 | Matsushita Electric Ind Co Ltd | 塗布ノズル |
WO2015009033A1 (ko) * | 2013-07-16 | 2015-01-22 | 주식회사 엘지화학 | 슬롯 다이 코터용 부재, 슬롯 다이 코터용 가동 부재, 및 이를 적용한 전극 생산용 슬롯 다이 코터 |
JP2016019975A (ja) * | 2015-08-03 | 2016-02-04 | 日東電工株式会社 | 塗布装置 |
KR101952598B1 (ko) * | 2018-07-24 | 2019-02-27 | 차정우 | 블록 조합형 슬롯다이 장치 |
KR20220068483A (ko) | 2020-11-19 | 2022-05-26 | 허소연 | 식용꽃을 이용한 반려동물용 건강간식 및 제조방법 |
-
2022
- 2022-11-04 WO PCT/KR2022/017292 patent/WO2023096211A1/ko active Application Filing
- 2022-11-04 EP EP22898893.7A patent/EP4275799A1/en active Pending
- 2022-11-04 JP JP2023537693A patent/JP2024503796A/ja active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4259055A (en) * | 1979-10-01 | 1981-03-31 | E. I. Du Pont De Nemours And Company | Coating apparatus |
JP2006102598A (ja) * | 2004-10-01 | 2006-04-20 | Matsushita Electric Ind Co Ltd | 塗布ノズル |
WO2015009033A1 (ko) * | 2013-07-16 | 2015-01-22 | 주식회사 엘지화학 | 슬롯 다이 코터용 부재, 슬롯 다이 코터용 가동 부재, 및 이를 적용한 전극 생산용 슬롯 다이 코터 |
JP2016019975A (ja) * | 2015-08-03 | 2016-02-04 | 日東電工株式会社 | 塗布装置 |
KR101952598B1 (ko) * | 2018-07-24 | 2019-02-27 | 차정우 | 블록 조합형 슬롯다이 장치 |
KR20220068483A (ko) | 2020-11-19 | 2022-05-26 | 허소연 | 식용꽃을 이용한 반려동물용 건강간식 및 제조방법 |
Also Published As
Publication number | Publication date |
---|---|
EP4275799A1 (en) | 2023-11-15 |
JP2024503796A (ja) | 2024-01-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2013157856A1 (ko) | 다층구조 전극 및 그 제조방법 | |
CN112331903B (zh) | 非水电解质二次电池 | |
WO2021054581A1 (ko) | 초크바 슬롯 다이 및 이를 포함하는 슬러리 코팅 장치 | |
WO2016148447A1 (ko) | 다공성 바인더 코팅층을 구비한 전극, 이의 제조 방법, 및 이를 포함하는 리튬 이차전지 | |
WO2019103546A2 (ko) | 리튬 이차전지용 음극 및 이를 포함하는 리튬 이차전지 | |
WO2023096211A1 (ko) | 슬롯 다이 코터 | |
WO2022060177A1 (ko) | 듀얼 슬롯 다이 코터 및 이를 이용한 전극 활물질 슬러리 코팅 방법 | |
WO2022060174A1 (ko) | 듀얼 슬롯 다이 코터, 이를 이용한 전극 활물질 슬러리 코팅 방법 및 이를 이용하여 제조한 전극 | |
WO2018026117A1 (ko) | 이차 전지 | |
WO2020171391A1 (ko) | 이차 전지용 전극의 제조방법 | |
WO2021261754A1 (ko) | 저항층이 형성된 전극의 제조방법 | |
WO2019221450A1 (ko) | 음극, 및 상기 음극을 포함하는 리튬 이차 전지 | |
WO2017082680A1 (ko) | 음극 활물질 및 이를 포함하는 리튬 이차전지 | |
KR20200088662A (ko) | 전극 제조 방법 및 이차 전지용 전극 | |
WO2022045554A1 (ko) | 접착력이 개선된 프라이머 코팅층을 포함하는 집전체 및 이의 제조방법 | |
KR20230078488A (ko) | 슬롯 다이 코터 | |
WO2024025158A1 (ko) | 슬롯 다이 코터 | |
WO2024122976A1 (ko) | 심 플레이트 및 이를 포함하는 슬롯 다이 코터 | |
WO2023096137A1 (ko) | 슬롯 다이 코터 | |
KR20230078481A (ko) | 슬롯 다이 코터 | |
WO2024143954A1 (ko) | 이차전지용 전극 제조 방법 및 장치 | |
WO2021261753A1 (ko) | 바인더층이 형성된 전극 및 이의 제조방법 | |
WO2018012940A1 (ko) | 음극 및 이를 포함하는 이차 전지 | |
KR20230078471A (ko) | 비대칭 심 플레이트 및 이를 포함하는 슬롯 다이 코터 | |
WO2023090684A1 (ko) | 단면 양극의 타면에 형성된 코팅층을 포함하는 전극조립체 및 이를 포함하는 이차전지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 202280008307.9 Country of ref document: CN |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2023537693 Country of ref document: JP |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22898893 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18273876 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 2022898893 Country of ref document: EP Effective date: 20230811 |