WO2023136567A1 - 이차전지 집전체의 활물질 코팅을 위한 다이 코터 - Google Patents
이차전지 집전체의 활물질 코팅을 위한 다이 코터 Download PDFInfo
- Publication number
- WO2023136567A1 WO2023136567A1 PCT/KR2023/000366 KR2023000366W WO2023136567A1 WO 2023136567 A1 WO2023136567 A1 WO 2023136567A1 KR 2023000366 W KR2023000366 W KR 2023000366W WO 2023136567 A1 WO2023136567 A1 WO 2023136567A1
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- WO
- WIPO (PCT)
- Prior art keywords
- coater
- shim
- block
- slit
- upper block
- Prior art date
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- 239000011248 coating agent Substances 0.000 title abstract description 25
- 238000000576 coating method Methods 0.000 title abstract description 25
- 239000011149 active material Substances 0.000 title description 4
- 239000007788 liquid Substances 0.000 claims abstract description 95
- 238000003825 pressing Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 12
- 238000010168 coupling process Methods 0.000 claims description 12
- 238000005859 coupling reaction Methods 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 7
- 239000011267 electrode slurry Substances 0.000 description 19
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
Images
Classifications
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- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
-
- 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
-
- 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
-
- 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 die coater capable of effectively simultaneously coating two different liquids on a current collector for a secondary battery.
- lithium secondary batteries are widely used as an energy source for various mobile devices as well as various electronic products in that they have high energy density and high operating voltage and excellent preservation and life characteristics.
- Lithium secondary batteries use electrodes in which an active material layer and an insulating layer are formed on the surface of a current collector.
- Such an electrode is prepared by coating and drying an electrode slurry containing an active material and the like and an insulating coating liquid containing an insulating material on the surface of a current collector so that a portion of the edge of the electrode mixture layer overlaps using a coating device such as a die coater. do.
- the die coater 1 shows a conventional die coater 1 for applying an electrode slurry.
- the die coater 1 includes an upper block 2 and a lower block 3, a die coater shim 4 is interposed between the upper block 2 and the lower block 3, and a plurality of bolt members. to bind them to each other.
- the lower block 3 is provided with a manifold 5 accommodating a certain volume of electrode slurry, and the manifold 5 communicates with an external electrode slurry supply unit (not shown).
- the shim for the die coater serves to form a slit of an appropriate height between the upper block and the lower block and at the same time restricts the flow direction of the electrode slurry so that the electrode slurry is discharged toward the slit, and also the electrode slurry to other parts other than the slit It also serves as a seal to prevent leakage.
- the shims for the die coater each have guides protruding at both ends in the width direction, and the distance between the guides determines the width at which the electrode slurry is applied on the current collector.
- the insulating coating liquid is applied on both edges of the electrode slurry applied on the current collector in the width direction.
- the insulating coating liquid is applied in an additional process using a separate device.
- Patent Document 1 Republic of Korea Patent Publication No. 10-2021-0083512 (published on July 7, 2021)
- An object of the present invention is to provide a die coater capable of effectively simultaneously coating two different liquids on a current collector for a secondary battery.
- the present invention relates to a die coater capable of effectively simultaneously coating two different liquids on a current collector for a secondary battery, and includes an upper block having a second liquid inlet; coupled to the upper block, and a first liquid A lower block equipped with a manifold for accommodating; and a coater shim interposed between the upper block and the lower block to form a first slit and a second slit separated from each other, wherein the coater shim, in one example, discharges the first liquid accommodated in the manifold.
- first coater shim forming the first slit and a second coater shim forming the second slit discharging the second liquid supplied through the second liquid inlet;
- the coater shims have the same height and lie on the same plane between the upper block and the lower block without overlapping vertically.
- the width of the first slit is limited by the width of the second coater shim.
- the height of the first slit corresponds to the height of the first coater shim
- the height of the second slit is smaller than the height of the second coater shim
- the second coater shim has a concave flow path groove open toward the upper block and having a bottom surface, and a closed end of the flow path groove is connected to the second liquid inlet of the upper block, and the flow path groove The open end of forms the second slit.
- the first coater shim includes a base extending in a width direction, and first and second guides protruding from both ends of the base, and one side wall of the pair of second coater shims is Adheres to the inner walls of the first and second guides, respectively.
- the distance between the other side walls of the pair of second coater shims corresponds to the width of the first slit.
- a through screw hole accessible to a bottom surface of the second coater shim is formed in the lower block, and an end of a bolt screwed into the through screw hole presses the second coater shim to press the upper block. can be attached to.
- an extended pressure block hole is formed at an end of the through screw hole in the coupling direction, and the pressure block accommodated in the pressure block hole is interposed between the bolt and the second coater shim to press the second coater shim.
- the pressing block may press both side wall portions of the second coater shim.
- a concave U-shaped flow path groove is opened toward the upper block and has a bottom surface, and the closed end of the U-shaped flow path groove is connected to the second liquid inlet of the upper block.
- the two open ends of the U-shaped passage groove form a third slit and further include a third coater shim having the same height as the first and second coater shims, the third coater shim having the same height as the first and second coater shims. It can be placed between 2 guides.
- a through screw hole accessible to the bottom surface of the third coater shim is formed in the lower block, and an end of a bolt screwed into the through screw hole presses the third coater shim to bring it into close contact with the upper block.
- an extended pressure block hole is formed at an end of the through screw hole in the coupling direction, and the pressure block accommodated in the pressure block hole is interposed between the bolt and the third coater shim to press the third coater shim.
- the pressing block may press both side wall portions of the third coater shim.
- the die coater of the present invention having the above configuration is configured to simultaneously discharge two different liquids, for example, an electrode slurry and an insulating coating liquid, in particular, a first liquid and a second liquid respectively discharged.
- the slit and the second slit are physically separated from each other in the die coater.
- the second coater core forming the second slit is airtight by a separate pressing structure, internal mixing of the first liquid and the second liquid can be reliably prevented.
- the die coater of the present invention makes it possible to effectively coat two different types of liquids on the current collector at the same time.
- FIG. 1 is a view showing the configuration of a die coater according to the prior art.
- FIG. 2 is an exploded perspective view showing a die coater according to an embodiment of the present invention.
- 3 is a plan view of the die coater viewed through an upper block
- FIG. 4 is an enlarged front view of part “A” of FIG. 3;
- FIG. 5 is an enlarged perspective view of part "B" of FIG. 3;
- FIG. 6 is an exploded perspective view showing a die coater according to another embodiment of the present invention.
- FIG. 7 is a perspective view of a third coater shim included in the die coater of FIG. 6;
- the term "comprises” or “has” is intended to designate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or more other features It should be understood that the presence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded.
- a part such as a layer, film, region, plate, etc. when a part such as a layer, film, region, plate, etc. is described as being “on” another part, this includes not only the case where it is “directly on” the other part, but also the case where another part is present in the middle thereof. . Conversely, when a part such as a layer, film, region, plate, or the like is described as being “under” another part, this includes not only being “directly under” the other part, but also the case where there is another part in the middle. In addition, in the present application, being disposed “on” may include the case of being disposed not only on the upper part but also on the lower part.
- the present invention relates to a die coater capable of effectively simultaneously coating two different liquids on a current collector for a secondary battery.
- the die coater of the present invention includes an upper block having a second liquid inlet, a lower block coupled to the upper block and having a manifold accommodating the first liquid, and the upper block and the lower block. and a coater shim interposed therebetween to form first slits and second slits separated from each other.
- the die coater of the present invention includes two types of coater cores, a first coater core and a second coater core.
- the first coater shim forms a first slit for discharging the first liquid contained in the manifold of the lower block
- the second coater shim forms a second slit for discharging the second liquid supplied through the second liquid inlet of the upper block. do.
- the first coater shim and the second coater shim have the same height and do not overlap each other, so that the first and second coater shims lie on the same plane between the upper block and the lower block.
- the die coater of the present invention is configured to simultaneously discharge two different liquids, for example, an electrode slurry and an insulating coating liquid, in particular, a first slit and a second slit for discharging the first liquid and the second liquid, respectively. Since the slits are physically separated from each other in the die coater, internal mixing of the first liquid and the second liquid can be prevented.
- two different liquids for example, an electrode slurry and an insulating coating liquid, in particular, a first slit and a second slit for discharging the first liquid and the second liquid, respectively. Since the slits are physically separated from each other in the die coater, internal mixing of the first liquid and the second liquid can be prevented.
- FIG. 2 is an exploded perspective view showing a die coater 10 according to an embodiment of the present invention.
- the overall configuration of the die coater 10 according to the present invention will be described with reference to FIG. 2 .
- the present invention relates to a die coater 10 capable of effectively simultaneously coating two different liquids on a current collector for a secondary battery.
- the two different liquids may be, for example, an electrode slurry and an insulating coating liquid.
- the following description can be understood as an embodiment in which the first liquid is an electrode slurry and the second liquid is an insulating coating liquid.
- the die coater 10 of the present invention includes an upper block 100 and a lower block 200, and a coater shim 300 interposed therebetween.
- the coater shim 300 is a first coater shim. 310 and a second coater shim 320.
- the upper block 100 is a portion that occupies approximately half of the body of the die coater 10 and has the second liquid inlet 120 .
- the lower block 200 is a portion that occupies the other half coupled with the upper block 100, and the lower block 200 is provided with a manifold 210 for accommodating the first liquid.
- the upper part and the lower part are divided into upper and lower parts based on the drawing, and do not limit the installation direction of the actual die coater 10 itself.
- FIG. 2 shows that the first liquid inlet 110 communicating with the manifold 210 of the lower block 200 is formed in the upper block 100, the first liquid inlet 110 is It may be formed on the lower block 200.
- the second liquid inlet 120 must be formed in the upper block 100, which limits its arrangement design due to the flow path groove 322 formed in the second coater shim 320 and its airtight structure, which will be described later. .
- the coater shim 300 is interposed between the upper block 100 and the lower block 200, and the coater shim 300 is basically interposed between the upper block 100 and the lower block 200 to discharge liquid. Form a slit of suitable height.
- the coater shim 300 restricts the flow direction so that the liquid flowing into the die coater 10 or received in the die coater 10 is discharged toward the slit without flowing backward, and the liquid flows to other parts other than the slit. It also serves as a seal to prevent leakage.
- the present invention includes a first coater shim 310 and a second coater shim 320 as the coater shim 300, wherein the first shim 310 and the second coater shim 320 are first slits separated from each other. 318 and second slits 328 are formed.
- the first coater shim 310 forms a first slit 318 through which the first liquid contained in the manifold 210 of the lower block 200 is discharged
- the second coater shim 320 is the upper block.
- a second slit 328 is formed to discharge the second liquid supplied through the second liquid inlet 120 of (100).
- first coater shim 310 and the second coater shim 320 have the same height and do not overlap each other vertically. Therefore, the first coater shim 310 and the second coater shim 320 lie on the same plane between the upper block 100 and the lower block 200 .
- FIG. 3 is a plan view of the die coater 10 viewed through the upper block 100
- FIG. 4 is an enlarged front view of part “A” in FIG. 3 and 4
- the first coater shim 310 includes a base 312 extending in the width direction, and first guides 314 and second guides protruding from both ends of the base 312, respectively. (316).
- the second coater shim 320 is open toward the upper block 100 and has a concave passage groove 322 having a bottom surface (see FIG. 5).
- the first coater shim 310 forms a first slit 318 in a space between the first and second guides 314 and 316
- the second coater shim 320 has a concave passage groove having a bottom surface.
- the open end of 322 forms a second slit 328 . Since the depth of the passage groove 322 is smaller than the thickness (height) of the second coater shim 320, as shown in FIG. 4, the height of the first slit 318 is equal to the height of the first coater shim 310. Correspondingly, the height of the second slit 328 is smaller than the height of the second coater shim 320 .
- the first slit 318 is as wide as the second coater shim 320. ) is limited.
- one side wall 324 of the pair of second coater shims 320 is attached to the inner side walls of the first guide 314 and the second guide 316. are attached to each Accordingly, the distance between the other side walls 324 (opposite sides of the side walls that are in close contact) of the pair of second coater shims 320 facing each other corresponds to the substantial width of the first slit 318 . That is, the length obtained by subtracting the width of the second coater shim 320 from the distance between the inner walls of the first guide 314 and the second guide 316 becomes the width of the first slit 318 .
- the first liquid of the first slit 318 is formed by the side walls 324 of the second coater shim 320. Since the upper block 100 is in close contact with the lower side of the channel groove 322 while the lower side of the channel groove 322 is in close contact, the second coater shim 320 is structurally completely isolated from the first liquid. Therefore, in the die coater 10 according to the present invention, the possibility of mixing two different types of liquids is significantly reduced.
- the airtightness of the second coater shim 320 can be better maintained by the pressing structure shown in FIG. 5 .
- the pressing structure of FIG. 5 is to reinforce airtightness between the upper block 100 and the second coater shim 320 . That is, both sides and bottom of the first coater shim 310 have a closed structure in which airtightness is guaranteed structurally, whereas the airtightness of the upper surface is affected by the degree of close contact with the upper block 100, and thus the pressing structure of FIG.
- the second coater shim 320 can be more firmly adhered to the upper block 100 .
- the closed end of the concave passage groove 322 formed in the second coater shim 320 is connected to the second liquid inlet 120 of the upper block 100 to receive the second liquid.
- the number and positions of the second liquid inlets 120 correspond to the number and positions of the second coater shims 320 .
- the installation position of the second coater shim 320 is accurately set by the pin member 130 provided on the upper block 100 .
- the pin member 130 protrudes around the second liquid inlet 120, and the pin member 130 is inserted into the coupling hole 326 provided in the second coater shim 320 to form the second coater shim 320. position is fixed.
- the pin member 130 and the coupling hole 326 are designed such that the fixing position and direction of the second coater shim 320 are uniformly determined.
- the second cotter shim 320 inserted into the pin member 130 does not rotate and the installation direction must be constantly determined, which means that a plurality of pin members 130 or a pin member ( 130) and the coupling hole 326, or a combination of these structures can be achieved through design.
- a concave pin insertion hole 220 for accommodating the protruding pin member 130 may be provided in the lower block 200 .
- a through screw hole 230 accessible to the bottom surface of the second cotter shim 320 is formed in the lower block 200, and an end of a bolt 232 screwed into the through screw hole 230 is attached to the second cotter shim 320.
- the coater shim 320 By pressing the coater shim 320, the upper surface of the second coater shim 320 is brought into close contact with the upper block 100 more strongly.
- an expanded pressure block hole 240 is formed at the end of the through screw hole 230 in the coupling direction (the direction in which the bolt is tightened) , and the pressing block 242 accommodated in the pressing block hole 240 is interposed between the bolt 232 and the second coater shim 320 to press the second coater shim 320 more efficiently.
- the second coater shim 320 can be brought into close contact more effectively by allowing the pressure block 242 to press the side wall 324 of the second coater shim 320 .
- the bolt 232 is applied to the second coater shim 320.
- the possibility that the second liquid flowing through the second coater shim 320 is mixed with the surrounding first liquid by the additional pressing force of pressing is extremely low.
- the second embodiment of the present invention is an embodiment suitable for the case where the slitting process is performed after applying the first liquid and the second liquid, for example, the electrode slurry and the insulating coating liquid in two or more rows to the current collector supplied in the form of a coil. .
- the second embodiment corresponds to an embodiment suitable for simultaneously applying an active material coating having a structure of "insulating coating liquid - electrode slurry - insulating coating liquid" to the current collector in two or more rows.
- FIG. 6 is an exploded perspective view showing a die coater 10 according to another embodiment of the present invention.
- the second embodiment shown includes a third coater core 330 while including the structure of the first embodiment as it is. contains more.
- the third coater shim 330 is installed in the middle of the die coater 10 in the width direction, and discharges the second liquid in two streams through the U-shaped passage groove 332 . That is, the third coater shim 330 is configured to discharge the second liquid in two streams corresponding to each of the second coater shims 320 on both sides closely disposed on the first and second guides 314 and 316. .
- the third coater shim 330 is disposed between the first and second guides 314 and 316 of the first coater shim 310, and the above-described second coater shim 320 is the first slit 318 Similarly to limiting the substantial width of the , the third coater shim 330 also acts as a factor limiting the first slit 318 . Accordingly, the third coater shim 330 disposed in the middle of the first slit 318 divides the first liquid into two branches to discharge the first liquid in two parallel rows. The height of the third coater shim 330 corresponds to the heights of the first and second coater shims 310 and 320 .
- the coating structure of "second liquid - first liquid - second liquid" is parallel to the current collector along the longitudinal direction of the current collector. Two current collector rolls can be obtained by slitting the middle of two parallel rows.
- FIG. 7 is a perspective view of the third coater shim 330, which has the same configuration as the second coater shim 320 except for the structure of the U-shaped passage groove 332.
- the third coater shim 330 is open toward the upper block 100 and has a concave U-shaped passage groove 332 having a bottom surface.
- the closed end of the U-shaped flow path groove 332 is connected to the second liquid inlet 120 of the upper block 100, and the two open ends of the U-shaped flow path groove 332 form the third slit 338 .
- the position of the third coater shim 330 is fixed so that the coupling hole 336 is inserted into the pin member 130 so as not to rotate.
- the same pressing structure as that of the second coater shim 320 may be applied to the third coater shim 330, and its configuration and operation are the same as those described above. That is, a through screw hole 230 accessible to the bottom surface of the third coater shim 330 is formed in the lower block 200, and an end of a bolt 232 screwed into the through screw hole 230 is first. 3 The coater shim 330 may be pressed to adhere to the upper block 100 .
- an expanded pressure block hole 240 is formed at the end of the through screw hole 230 in the coupling direction, and the pressure block 242 accommodated in the pressure block hole 240 is connected to the bolt 232 and the third cotter shim 330. ) to press the third coater shim 330, for example, the press block 242 may press the side wall 334 of the third coater shim 330.
- the second embodiment describes adding one third coater shim 330 to simultaneously apply the first liquid and the second liquid to the electrode body in two rows in parallel, but two or more third coater shims 330 ) It will be apparent to those skilled in the art that it can be applied in three or more rows by adding.
- first liquid inlet 120 second liquid inlet
- pin member 200 lower block
- manifold 220 pin insertion hole
- press block hole 242 press block
- coater shim 310 first coater shim
- U-shaped flow path 334 side wall
- the die coater of the present invention is useful for effectively and simultaneously coating two different liquids on a current collector for a secondary battery.
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- General Chemical & Material Sciences (AREA)
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Abstract
Description
Claims (13)
- 제2 액 유입구를 구비하는 상부 블록;상기 상부 블록과 결합하고, 제1 액을 수용하는 매니폴드가 구비된 하부 블록; 및상기 상부 블록과 하부 블록 사이에 개재되어 서로 분리된 제1 슬릿 및 제2 슬릿을 형성하는 코터 심;을 포함하고,상기 코터 심은,상기 매니폴드에 수용된 제1 액을 토출하는 상기 제1 슬릿을 형성하는 제1 코터 심과, 상기 제2 액 유입구를 통해 공급되는 제2 액을 토출하는 상기 제2 슬릿을 형성하는 제2 코터 심을 포함하고,상기 제1 코터 심과 제2 코터 심은 동일한 높이를 가지고, 상하로 중첩되지 않아 상기 상부 블록과 하부 블록 사이의 동일 평면상에 놓이는 것을 특징으로 하는 다이 코터.
- 제1항에 있어서,상기 제2 코터 심의 폭만큼 상기 제1 슬릿의 폭이 제한되는 것을 특징으로 하는 다이 코터.
- 제2항에 있어서,상기 제1 슬릿의 높이는 상기 제1 코터 심의 높이에 대응하고,상기 제2 슬릿의 높이는 상기 제2 코터 심의 높이보다 작은 것을 특징으로 하는 다이 코터.
- 제3항에 있어서,상기 제2 코터 심은,상기 상부 블록을 향해 개방되고 바닥면을 가진 오목한 유로 홈을 구비하고, 상기 유로 홈의 폐쇄단은 상기 상부 블록의 제2 액 유입구와 연결되며, 상기 유로 홈의 개방단은 상기 제2 슬릿을 형성하는 것을 특징으로 하는 다이 코터.
- 제4항에 있어서,상기 제1 코터 심은,폭 방향을 따라 연장된 베이스와, 상기 베이스의 양단에서 각각 돌출 연장된 제1 및 제2 가이드를 포함하고,한 쌍으로 이루어진 상기 제2 코터 심의 일측벽은, 상기 제1 및 제2 가이드의 내측벽에 각각 밀착되는 것을 특징으로 하는 다이 코터.
- 제5항에 있어서,한 쌍으로 이루어진 상기 제2 코터 심의 타측벽 사이의 거리가 상기 제1 슬릿의 폭에 대응하는 것을 특징으로 하는 다이 코터.
- 제1항에 있어서,상기 하부 블록에는 상기 제2 코터 심의 저면으로 접근할 수 있는 관통 나사홀이 형성되고,상기 관통 나사홀에 나사결합하는 볼트의 단부가 상기 제2 코터 심을 가압하여 상기 상부 블록에 밀착시키는 것을 특징으로 하는 다이 코터.
- 제7항에 있어서,상기 관통 나사홀의 결합방향 단부에는 확장된 가압블록 홀이 형성되고,상기 가압블록 홀에 수용된 가압블록은 상기 볼트와 제2 코터 심 사이에 개재되어 상기 제2 코터 심을 가압하는 것을 특징으로 하는 다이 코터.
- 제8항에 있어서,상기 가압블록은, 상기 제2 코터 심의 양측벽 부위를 가압하는 것을 특징으로 하는 다이 코터.
- 제5항에 있어서,상기 상부 블록을 향해 개방되고 바닥면을 가진 오목한 U자형 유로 홈을 구비하고, 상기 U자형 유로 홈의 폐쇄단은 상기 상부 블록의 제2 액 유입구와 연결되며, 상기 U자형 유로 홈의 두 개의 개방단은 제3 슬릿을 이루고, 또한 상기 제1 및 제2 코터 심과 높이가 동일한 제3 코터 심을 더 포함하고,상기 제3 코터 심은 상기 제1 및 제2 가이드 사이에 배치되는 것을 특징으로 하는 다이 코터.
- 제10항에 있어서,상기 하부 블록에는 상기 제3 코터 심의 저면으로 접근할 수 있는 관통 나사홀이 형성되고,상기 관통 나사홀에 나사결합하는 볼트의 단부가 상기 제3 코터 심을 가압하여 상기 상부 블록에 밀착시키는 것을 특징으로 하는 다이 코터.
- 제11항에 있어서,상기 관통 나사홀의 결합방향 단부에는 확장된 가압블록 홀이 형성되고,상기 가압블록 홀에 수용된 가압블록은 상기 볼트와 제3 코터 심 사이에 개재되어 상기 제3 코터 심을 가압하는 것을 특징으로 하는 다이 코터.
- 제12항에 있어서,상기 가압블록은, 상기 제3 코터 심의 양측벽 부위를 가압하는 것을 특징으로 하는 다이 코터.
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JP2023546519A JP2024506147A (ja) | 2022-01-11 | 2023-01-09 | 二次電池集電体の活物質コーティングのためのダイコーター |
EP23740411.6A EP4289518A1 (en) | 2022-01-11 | 2023-01-09 | Die coater for coating secondary battery current collector with active material |
US18/275,845 US20240058834A1 (en) | 2022-01-11 | 2023-01-09 | Die Coater for Coating Current Collector of Secondary Battery with Active Material |
CN202380009774.8A CN116783005A (zh) | 2022-01-11 | 2023-01-09 | 用于给二次电池的集流体涂覆活性材料的模具涂布机 |
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CN205253457U (zh) * | 2015-12-31 | 2016-05-25 | 芜湖天弋能源科技有限公司 | 一种涂布装置 |
US20200147638A1 (en) * | 2017-04-10 | 2020-05-14 | Roche Diabetes Care, Inc. | Multi-reagent slot die coating process and useful devices |
CN213133858U (zh) * | 2020-07-02 | 2021-05-07 | 欣旺达电动汽车电池有限公司 | 涂布垫片 |
CN213612390U (zh) * | 2020-09-30 | 2021-07-06 | 蜂巢能源科技有限公司 | 物料涂布用模头垫片及涂布机 |
KR102316428B1 (ko) * | 2018-10-31 | 2021-10-22 | 도요타 지도샤(주) | 전극판, 이것을 이용한 전지, 전극판의 제조 방법, 이것을 이용한 전지의 제조 방법, 다이 헤드 |
KR20220004219A (ko) | 2019-06-12 | 2022-01-11 | 밍-트어 린 | 휴대용 용기 및 그 뚜껑 구조체 |
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KR20210083512A (ko) | 2019-12-27 | 2021-07-07 | 주식회사 엘지에너지솔루션 | 코팅 균일성이 우수한 전극 슬러리 토출용 코팅 심 및 이를 포함하는 코팅 다이 |
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CN205253457U (zh) * | 2015-12-31 | 2016-05-25 | 芜湖天弋能源科技有限公司 | 一种涂布装置 |
US20200147638A1 (en) * | 2017-04-10 | 2020-05-14 | Roche Diabetes Care, Inc. | Multi-reagent slot die coating process and useful devices |
KR102316428B1 (ko) * | 2018-10-31 | 2021-10-22 | 도요타 지도샤(주) | 전극판, 이것을 이용한 전지, 전극판의 제조 방법, 이것을 이용한 전지의 제조 방법, 다이 헤드 |
KR20220004219A (ko) | 2019-06-12 | 2022-01-11 | 밍-트어 린 | 휴대용 용기 및 그 뚜껑 구조체 |
CN213133858U (zh) * | 2020-07-02 | 2021-05-07 | 欣旺达电动汽车电池有限公司 | 涂布垫片 |
CN213612390U (zh) * | 2020-09-30 | 2021-07-06 | 蜂巢能源科技有限公司 | 物料涂布用模头垫片及涂布机 |
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US20240058834A1 (en) | 2024-02-22 |
JP2024506147A (ja) | 2024-02-09 |
EP4289518A1 (en) | 2023-12-13 |
CN116783005A (zh) | 2023-09-19 |
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