WO2013111624A1 - Dispositif de fabrication de matériau de feuille d'électrode - Google Patents

Dispositif de fabrication de matériau de feuille d'électrode Download PDF

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Publication number
WO2013111624A1
WO2013111624A1 PCT/JP2013/050364 JP2013050364W WO2013111624A1 WO 2013111624 A1 WO2013111624 A1 WO 2013111624A1 JP 2013050364 W JP2013050364 W JP 2013050364W WO 2013111624 A1 WO2013111624 A1 WO 2013111624A1
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WO
WIPO (PCT)
Prior art keywords
main surface
nozzle
sheet material
coating liquid
sub
Prior art date
Application number
PCT/JP2013/050364
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English (en)
Japanese (ja)
Inventor
敦 渡邉
藤田　和彦
Original Assignee
東レエンジニアリング株式会社
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Filing date
Publication date
Application filed by 東レエンジニアリング株式会社 filed Critical 東レエンジニアリング株式会社
Publication of WO2013111624A1 publication Critical patent/WO2013111624A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8825—Methods for deposition of the catalytic active composition
    • H01M4/8828—Coating with slurry or ink
    • 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
    • B05C9/04—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 liquid or other fluent material to opposite sides of the work
    • 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
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • 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
    • H01M4/0402—Methods of deposition of the material
    • H01M4/0407—Methods of deposition of the material by coating on an electrolyte layer
    • 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
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present invention relates to an apparatus used in a process for producing an electrode sheet material by applying a coating solution for forming a current collector on a sheet-like material that is a core material of the electrode sheet material.
  • a lithium ion battery or a fuel cell includes a long conductive sheet material (for example, aluminum, copper, etc.) having a predetermined width as a sheet material core material, and while continuously conveying the sheet material core material,
  • the electrode sheet material is constituted by applying and drying a current collector forming coating solution called an active material on the back surface.
  • the electrode sheet material is stacked in layers while sandwiching a porous sheet called a separator, and the stacked positive and negative electrodes and separator are inserted into a bag made of an exterior film, and an electrolyte solution is injected therein.
  • the size of the positive electrode on the battery configuration is larger than the size of the negative electrode, and in order to improve safety, an electrolyte solution is injected into the separator after the positive electrode is laminated.
  • an electrolyte solution is injected into the separator after the positive electrode is laminated.
  • JP 2009-202141 A Japanese Patent Laid-Open No. 2002-028560 Japanese Patent Laid-Open No. 05-0776818
  • the first main surface application main nozzle 31a on one side (first main surface side: upper side in the figure) with respect to the sheet material core material 10c constituting the sheet material 10.
  • the second coating liquid 42a made of an insulating material can be applied using the first main surface coating sub-nozzle 41z1.
  • the opposite surface second main surface side: the lower side in the figure
  • the support roller 71z is disposed at a position facing the application sub nozzle.
  • the support roller 71z and the sheet material core material 10c cannot be held and held.
  • the first coating liquid is applied from the same side using the second main surface application main nozzle 31b while the sheet material is held only by the support roller 71b on the second main surface application side, and then the second main surface is applied.
  • the second coating liquid must be applied using the surface coating sub-nozzle 41z2.
  • the gap between the second main surface application sub-nozzle 41z2 and the sheet material core material 10c is likely to be non-uniform, and the film thickness of the coating liquid applied later to the second main surface side is uniform. It was difficult to make.
  • the present invention uniformly distributes the insulator beside the active material layer applied to the front and back surfaces of the manufacturing process while stably maintaining and transporting the sheet-like material as the core material without increasing the overall line length of the manufacturing process. It aims at providing the manufacturing apparatus of the electrode sheet material which can be apply
  • a sheet material conveying section for continuously conveying the sheet material in a predetermined direction;
  • a first main surface application main nozzle provided with a coating liquid discharge section having a predetermined length in the sheet width direction on the first main surface side of the sheet material;
  • a second main surface application main nozzle provided with a coating liquid discharge portion having a predetermined length in the sheet width direction on the second main surface side of the sheet material;
  • a first main surface application sub-nozzle comprising a coating liquid discharge section having a predetermined length in the sheet width direction on the first main surface side of the sheet material;
  • a second main surface application sub-nozzle comprising a coating liquid discharge portion having a predetermined length in the sheet width direction on the second main surface side of the sheet material;
  • the first main surface application sub-nozzle and the second main surface application sub-nozzle are: The first main surface application main nozzle and the second main surface application main nozzle are disposed downstream in the sheet material conveyance direction and upstream of the drying unit in
  • the first main surface application sub-nozzle coating liquid discharge part is disposed one by one on both outer sides in the sheet material width direction with respect to the first main surface application main nozzle coating liquid discharge part,
  • coating sub nozzle is arrange
  • the active material layer applied to the front and back surfaces of the core sheet is stably maintained and conveyed without increasing the overall line length of the manufacturing process. It is possible to uniformly apply the insulator. Moreover, after apply
  • the coating liquid discharge part of the main nozzle for applying the first main surface is: A plurality are arranged at predetermined intervals in the sheet width direction
  • the coating liquid discharge part of the main nozzle for applying the second main surface is: A plurality are arranged at predetermined intervals in the sheet width direction, Between the plurality of coating liquid discharge portions arranged on the first main surface side, a first main surface intermediate portion application sub nozzle including a coating liquid discharge portion of a predetermined length in the sheet width direction, Between the plurality of coating liquid discharge portions arranged on the second main surface side, a second main surface intermediate portion application sub nozzle including a coating liquid discharge portion of a predetermined length in the sheet width direction, The first main surface intermediate portion application sub-nozzle and the second main surface intermediate portion application sub-nozzle are: 2.
  • the electrode sheet material manufacturing apparatus wherein the electrode sheet material is disposed at a position where the sheet material is held so as to be sandwiched from the first main surface and the second main surface side.
  • a plurality of main nozzles are arranged at predetermined intervals in the sheet width direction.
  • the intermediate application sub nozzles are provided on both sides of the sheet material in the non-stripe application part. It can arrange
  • the invention according to claim 3 The coating liquid discharge portion of the first main surface application sub-nozzle and the coating liquid discharge portion of the second main surface application sub-nozzle are arranged at opposing positions. 2.
  • the electrode sheet material manufacturing apparatus While the electrode sheet passes between the first main surface application sub-nozzle and the second main surface application sub-nozzle, and the second coating liquid is discharged from one sub-nozzle, the other sub-nozzle provides backup support. To play a role. Therefore, when the second coating liquid is discharged from the set of sub-nozzles, the pressing force acts from both sides of the sheet material, so that the sheet material can be held stably and stably transported, The film thickness of the second coating liquid can be made uniform.
  • the coating liquid discharge part of the first main surface application sub-nozzle and the coating liquid discharge part of the second main surface application sub-nozzle are arranged at a predetermined interval in the conveying direction of the sheet material. It is a manufacturing apparatus of the electrode sheet material of Claim 1 or Claim 2.
  • Tension is applied to the sheet material from the first and second main surface sides by the first main surface application sub-nozzle and the second main surface application sub-nozzle arranged at a predetermined interval in the sheet material conveyance direction. Can be granted. Therefore, when the second coating liquid is discharged from the set of sub-nozzles, the pressing force acts from both sides of the sheet material, so that the sheet material can be held stably and stably transported, The film thickness of the second coating liquid can be made uniform.
  • the coating liquid discharge portion of the first main surface application sub-nozzle is attached so as to be rotatable about a direction orthogonal to the first main surface
  • the coating liquid discharge portion of the second main surface application sub-nozzle is attached so as to be rotatable about a direction orthogonal to the second main surface
  • a first main surface application sub-nozzle angle adjusting mechanism capable of adjusting an angle formed between the first main surface application sub-nozzle and the sheet material width direction
  • a second main surface coating sub-nozzle angle adjusting mechanism capable of respectively adjusting an angle formed between the second main surface coating sub-nozzle and the sheet material width direction.
  • the electrode sheet material manufacturing apparatus If the electrode sheet material manufacturing apparatus is used, Set and adjust the angles of the first main surface application sub-nozzle and the second main surface application sub-nozzle so that the tension acting in the width direction of the sheet material is suitable for application. can do. By doing so, it is possible to stably hold and stably convey the sheet material while suppressing sagging and fluttering. Therefore, the gap amount between the sheet material and the second main surface coating main nozzle can be made constant, and the film thickness of the second coating liquid can be made uniform.
  • the invention described in claim 6 The invention described in claim 6
  • the first main surface application sub-nozzle or the second main surface application sub-nozzle is provided with a sub-nozzle position adjustment mechanism that adjusts the position of the sheet material in the thickness direction with respect to the sheet material.
  • An electrode sheet material manufacturing apparatus according to any one of claims 1 to 5.
  • the electrode sheet material manufacturing apparatus Since the distance between the first and second main surface coating sub-nozzles and the sheet material can be adjusted, it is possible to stably hold and stably convey the sheet material while suppressing sagging and fluttering of the sheet material.
  • the film thickness of the liquid can be easily adjusted.
  • the invention described in claim 7 While continuously conveying the sheet material, Supply of the 1st coating liquid discharged from the 1st main surface application main nozzle and the 2nd main surface application main nozzle is performed intermittently, 7.
  • An active material or a carbon material can be intermittently applied to both sides of the sheet-like material as the core material, and an insulator can be applied to the side surfaces of the intermittently applied active material or carbon material.
  • Insulating material can be uniformly applied to the side of the active material layer applied to the front and back surfaces while stably maintaining and transporting the sheet-like material as the core material without increasing the total line length of the manufacturing process. .
  • FIG. 1A is a perspective view showing an example of a form embodying the present invention.
  • FIG. 1B is a side view showing an example of a form embodying the present invention.
  • FIG. 2 is a system configuration diagram showing an example of a form embodying the present invention.
  • the three axes of the orthogonal coordinate system are X, Y, and Z, the XY plane is the horizontal plane, and the Z direction is the vertical direction.
  • the direction of the arrow is expressed as the downstream side, and the opposite direction is expressed as the upstream side.
  • the Y direction is expressed as the width direction.
  • the electrode sheet material manufacturing apparatus 1 includes a sheet material conveyance unit 2, a main nozzle unit 3, a sub nozzle unit 4, a drying unit 5, and a control unit 9.
  • the sheet material conveyance unit 2 rotates the folding roller 22 and the backup roller 23, the sheet winding unit 28 (not illustrated), and these rollers and the sheet winding unit 28, which are attached to an apparatus frame (not illustrated). Therefore, the motor 22m, 23m, and the winding unit rotation drive motor 28m are included.
  • the main nozzle unit 3 includes a first main surface application main nozzle 31a and a second main surface application main nozzle 31b.
  • the first main surface application main nozzle 31a is disposed at a position facing the backup roller 23 with the sheet material core material 10c interposed therebetween, and one surface (first surface) of the sheet material core material 10c from the coating liquid discharge portion 33a.
  • a first coating liquid called an active material is discharged onto one main surface), and a layer of the first coating liquid 32a applied to the first main surface can be formed.
  • the second main surface application main nozzle 31b is disposed on the downstream side of the first main surface application main nozzle 31a, and the first main surface of the sheet material core material 10c from the coating liquid discharge part 33b.
  • the first coating liquid is discharged onto the opposite surface (second main surface), and a layer of the first coating liquid 32b applied to the second main surface can be formed.
  • the sub-nozzle portion 4 includes a first main surface application sub-nozzle 41a and a second main surface application sub-nozzle 41b.
  • the first main surface application sub-nozzle 41a is arranged so that the coating liquid discharge part 43a faces the portion of the first main surface of the sheet material core 10c where the first coating liquid is not applied.
  • the second coating liquid is discharged from the liquid discharge portion 43a, and a layer of the second coating liquid 42a applied to the first main surface can be formed in the uncoated portion.
  • the second main surface application sub-nozzle 41b is disposed so that the coating liquid discharge portion 43b faces the portion of the second main surface of the sheet material core 10c where the first coating liquid is not applied.
  • the second coating liquid is discharged from the liquid discharge portion 43b, and a layer of the second coating liquid 42b applied to the second main surface can be formed on the uncoated portion.
  • the first main surface application sub-nozzle 41a and the second main surface application sub-nozzle 41b are downstream of the second main surface application main nozzle 31b and applied to the first main surface and the second main surface. Furthermore, the first coating liquids 32a and 32b are arranged at positions where the end portions of the second coating liquids 42a and 42b applied to the first main surface and the second main surface adhere to the end portions of the layers of the first coating liquids 32a and 32b. Yes.
  • the drying unit 5 is disposed on the downstream side of the first main surface application sub-nozzle 41a and the second main surface application sub-nozzle 41b, and the first coating liquids 32a and 32b applied to both surfaces of the sheet material core 10c.
  • the second coating liquids 42a and 42b can be dried and solidified.
  • a sheet winding unit 28 (not shown) is disposed on the downstream side of the drying unit 5, and the sheet material core material 10 c is in a conveying state due to the tension between the backup roller 23 and the sheet winding unit 28. Is conveyed in the direction of arrow 10v.
  • the sheet end gripping portion 7 is disposed on the upstream side or the downstream side of the second main surface coating main nozzle, and the first coating liquid is applied to both ends of the sheet material core material 10c.
  • the part which is not present may be gripped from both sides. If it does so, tension
  • the sheet end gripping portion 7 is a portion where the first coating liquid is not applied to the sheet material 10c (that is, the layer of the applied first coating liquid 32a, 32b is not formed), As shown in FIGS. 1A and 1B, the sheet end gripping rollers 71a and 71b can be configured so as to be sandwiched from both sides.
  • the control unit 9 includes a control computer 90, an information input unit 91, an information output unit 92, a reporting unit 93, an information recording unit 94, and a device control unit 95.
  • An information input unit 91, an information output unit 92, a notification unit 93, an information recording unit 94, and a device control unit 95 are connected to the control computer 90.
  • Examples of the control computer 90 include a computer equipped with a numerical operation unit such as a microcomputer, a personal computer, or a workstation.
  • Examples of the information input unit 91 include a keyboard, a mouse, and a switch.
  • Examples of the information output unit 92 include an image display display and a lamp.
  • Examples of the reporting means 93 include a buzzer, a speaker, and a lamp that can alert the worker.
  • Examples of the information recording means 94 include a semiconductor recording medium, a magnetic recording medium, a magneto-optical recording medium, such as a memory card and a data disk.
  • Examples of the device control unit 95 include devices called programmable controllers and motion controllers.
  • the device control unit 95 is connected to the roller rotation drive motors 22m and 23m and the winding unit rotation drive motor 28m, and rotates the respective motors at a predetermined rotation speed to convey the sheet material core material 10c at a predetermined speed. Can be moved.
  • the device control unit 95 is connected to a device (not shown) that supplies the first coating liquid to the first main surface coating main nozzle 31a and the second main surface coating main nozzle 31b.
  • the first application liquid discharged from the main surface coating main nozzle 31a and the second main surface coating main nozzle 31b are started and stopped, and the discharge amount per time can be controlled. Yes.
  • the device control unit 95 is connected to a device (not shown) that supplies the second coating liquid to the first main surface coating sub-nozzle 41a and the second main surface coating sub-nozzle 41b, and the first main surface coating It is configured to be able to control the discharge start / discharge stop of the second coating liquid discharged from the sub nozzle 41a and the second main surface coating sub nozzle 41b, and the discharge amount per time.
  • the electrode sheet material manufacturing apparatus 1 Since the electrode sheet material manufacturing apparatus 1 has such an apparatus configuration, various manufacturing conditions registered in the information recording means 94 are appropriately read from the control computer 90 and the device control unit 95 is read from the control computer 90. Various information can be transmitted to the device, and the device control unit 95 can control each device. Therefore, the electrode sheet material manufacturing apparatus 1 applies the first coating liquid and the second coating liquid to the first and second main surfaces under predetermined conditions while conveying the sheet material 10 at a predetermined speed. be able to.
  • FIG. 3 is a flowchart showing an example of a form embodying the present invention.
  • a series of flows for applying the coating liquid to the sheet material 10 and drying (so-called coating) is shown for each step.
  • each coating solution Prior to coating, each coating solution is filled in each nozzle.
  • the sheet material 10 is set in the sheet material conveyance unit 2 of the electrode sheet material manufacturing apparatus (s101).
  • the sheet material 10 is unwound from an unwinding section (not shown) and is transferred to the folding roller 22, the backup roller 23, the sheet end gripping section 7, and the drying section 5.
  • the winding unit 26 is set so that it can be wound.
  • each nozzle is adjusted (s102) with the sheet material 10 to be coated and the nozzles 31a, 31b, 41a, 42b facing each other. Further, the position and angle of the sheet edge gripping rollers 71a and 71b of the sheet edge gripping portion 7 and the gripping force are adjusted (s103).
  • the sheet material conveyance unit 2 is driven to continuously convey the sheet material 10 (s105).
  • the first coating liquid is discharged from the first main surface application main nozzle 31a, and the first coating liquid is applied to the first main surface of the sheet material 10 (s106).
  • the first coating liquid is discharged from the second main surface application main nozzle 31b, and the first coating liquid is applied to the second main surface of the sheet material 10 (s107).
  • the second coating liquid is discharged from the first main surface application sub-nozzle 41a to apply the second coating liquid to the first main surface of the sheet material 10, and the second main surface application sub-nozzle 41b is used to apply the second coating liquid. And the second coating liquid is applied to the second main surface of the sheet material 10 (s108). Thereafter, the portion where the first coating liquid and the second coating liquid are applied to both surfaces is sent to the downstream drying unit 5 by winding the sheet material 10c (s109). It is determined whether or not all coating has been completed (s115). If it is determined that the coating has been completed, the conveyance of the sheet material 10c is stopped (s118), and the sheet material 10c is taken out from the conveyance unit 2 (s119). On the other hand, if it is determined that all coating has not been completed, the above steps (s105 to s115) are repeated.
  • FIG. 4 is a side view showing an example of a form embodying the present invention, and shows an example of arrangement of sub nozzles.
  • FIG. 4A shows a form in which the first main surface application sub-nozzle 41a is arranged upstream of the second main surface application sub-nozzle 41b.
  • FIG. 4B shows a form in which the first main surface application sub-nozzle 41a and the second main surface application sub-nozzle 41b face each other at a predetermined interval in the sheet thickness direction. Yes.
  • FIG. 4C shows a form in which the first main surface coating sub-nozzle 41a is arranged on the downstream side of the second main surface coating sub-nozzle 41b.
  • seat material 10 will pass between the sub nozzle 41a for 1st main surface application
  • coating sub nozzle will respectively be sheet material 10 1st and Tension can be applied to the sheet material from the second main surface side.
  • pressing forces act from both sides of the sheet material.
  • the sheet material 10 is conveyed while applying tension in the conveyance direction 10v.
  • tension is applied in the conveyance direction from above and below by the above-described sub nozzle, so that the sheet material 10 is stable by suppressing sagging and fluttering of the sheet material. It can be held and stably conveyed.
  • FIG. 5A is a plan view showing an example of another embodiment embodying the present invention
  • FIG. 5B is a side view corresponding to FIG. 5A and shows an example of the attachment angle of each sub-nozzle.
  • the sheet material conveyance direction 10v and the coating liquid discharge portions of the first and second main surface coating sub-nozzles may be arranged not only when they are orthogonal to each other but also at an angle.
  • the first and second main surface coating sub-nozzles are arranged such that the side on which the first coating liquid is not applied is the upstream side, and the side on which the first coating coating liquid is applied. It is good also as a form which inclines and arranges to the downstream. Or it is good also as this reverse direction.
  • the electrode sheet material manufacturing apparatus to which this modification is applied can set and adjust the strength of the tension acting in the width direction of the sheet material to a state suitable for coating, and the sheet material can be slack and fluttered.
  • the angles of the first and second main surface coating sub nozzles with respect to the sheet material conveyance direction 10v may be appropriately set while confirming the state of slack and flutter during conveyance of the actual sheet material 10. By doing so, it is possible to stably hold and stably convey the sheet material while suppressing sagging and fluttering.
  • FIG. 6 is a plan view showing an example of still another embodiment embodying the present invention, in which the layers of the first coating liquids 32a and 32b applied to the first and second main surfaces are formed in two rows ( The example of the attachment angle of the sub nozzles 41a and 41b for 1st and 2nd main surface application
  • the first and second main surface coating sub-nozzles are arranged on the upstream side with the side where the first coating liquid is not applied.
  • the side to which the liquid is applied is inclined to the downstream side, and the sheet material conveyance direction 10v and the coating liquid discharge part of the first and second main surface coating sub nozzles are arranged at the center of the sheet material 10. May be orthogonal. Alternatively, the first and second main surface coating sub-nozzles disposed at both ends of the sheet material 10 may be in the opposite directions.
  • the first and second main surface coating sub-nozzles are not limited to the case where they are arranged at fixed angles as described above, but may be configured to be rotatable about a direction orthogonal to the main surface of the sheet material 10 as a central axis.
  • each sub-nozzle is preferably configured so that it can be rotated to an arbitrary angle by an angle adjusting mechanism and can be stopped at that angle.
  • the first and second main surface coating sub-nozzles are not limited to the case where they are fixedly arranged at the above-mentioned positions, but the positions of the first and second main surface coating sub-nozzles are adjusted in the conveying direction, the width direction, and the thickness direction of the sheet material. It is preferable to be configured to be able to. If it does so, a setup change can be rapidly performed now with respect to the application
  • the electrode sheet material in this invention is an electrode sheet material used for a secondary battery etc., and can specifically illustrate conductive foil-like sheet materials such as aluminum and copper.
  • a 1st coating liquid the paste-form thing containing the material called an active material and a carbon material can be illustrated.
  • the second coating liquid applied to both sides is an insulating material, such as a resin that dissolves in the solution used for the first coating liquid, or a paste that contains a ceramic material. It can be illustrated.
  • FIG. 7A is a perspective view showing an example of still another embodiment that embodies the present invention, in which the layers of the first coating liquids 32a and 32b applied to the first and second main surfaces of the sheet material 10 and It shows a state in which the layers of the second coating liquids 42a and 42b are formed by intermittent coating.
  • FIG. 7B is a side view showing an example of still another embodiment embodying the present invention, and shows a state where the state of intermittent coating shown in FIG. 7A is viewed from the side.
  • the electrode sheet material manufacturing apparatus 1 described above with reference to FIGS. 1A and 1B and FIG. 2 can be used.
  • the electrode sheet material manufacturing apparatus 1 includes the sheet material 10 conveyance speed, the discharge time and discharge stop time of the first coating liquid and the second coating liquid (that is, the application time and non-application time in intermittent application). Is previously registered in the information recording means 94 and transmitted to the control unit 95 through the control computer 90.
  • the first coating liquid is applied to the first main surface so that the non-coating portions I1 and I2 are formed according to the rotation amounts of the roller rotation drive motors 22m and 23m, that is, the travel amount of the sheet material 10.
  • the first coating liquid and the second coating liquid are applied. By doing so, the application state as shown in FIG. 7B can be obtained.
  • the coating start timing of the second coating solution was adjusted, and the length (X direction) in which the layers of the coated second coating solutions 42a and 42b were formed was applied as shown in FIG. 7C. You may make it a little longer than the length (X direction) in which the layer of the 1st coating liquids 32a and 32b was formed.
  • the sheet edge gripping rollers 71a and 71b may be appropriately disposed. As illustrated in FIG. 7C, the sheet edge gripping rollers 71a and 71b may be disposed between the backup roller 23 and the second main surface coating main nozzle 31b. You may arrange
  • Electrode sheet material manufacturing apparatus Sheet material conveyance part 3 Main nozzle part 4 Sub nozzle part 5 Drying part 6 Sub nozzle position adjustment mechanism part 7 Sheet edge part holding part 9 Control part 10 Sheet material 10a Active material 10c Sheet material core material 10i Insulation Material 10v Sheet material conveying direction 22 Folding roller 23 Backup roller 28 Sheet winding unit 22m Roller rotation drive motor 23m Roller rotation drive motor 28m Winding unit rotation drive motor 31a First main surface coating main nozzle 31b Second main surface coating Main nozzle 32a First coating liquid 32b applied to the first main surface First coating liquid 32b applied to the second main surface 33a Coating liquid discharge portion 33b Coating liquid discharge portion 41a First main surface application sub-nozzle 41b First Sub-nozzle for applying two main surfaces 42a Second coating liquid 42b applied to the first main surface 42b Applying to the second main surface The second coating liquid 43a The coating liquid discharge part 43b The coating liquid discharge part 71a The sheet end gripping roller 71b The sheet end gripping roller 71z The support roller 90 The control computer

Abstract

L'invention concerne un dispositif de fabrication de matériau de feuille d'électrode qui est apte à maintenir et de transporter de manière stable un matériau en forme de feuille qui est un matériau de cœur, tout en ne rallongeant pas une longueur totale de ligne de traitement de fabrication, et qui est apte à revêtir un isolant de manière uniforme et sans un intervalle dans la direction horizontale d'une couche de matériau actif qui est revêtue sur ses surfaces avant et arrière. Particulièrement, une première sous-buse de revêtement de surface principale et une seconde sous-buse de revêtement de surface principale sont disposées à un côté aval d'une direction de transport de matériau de feuille par rapport à une première buse principale de revêtement de surface principale et une seconde buse principale de revêtement de surface principale, et à un côté amont de la direction de transport de matériau de feuille par rapport à une partie séchoir. Une partie de décharge de liquide de revêtement de la première sous-buse de revêtement de surface principale est disposée sur chacun des deux côtés externes dans une direction de largeur de matériau de feuille par rapport à une partie de décharge de liquide de revêtement de la première buse principale de revêtement de surface principale, et une partie de décharge de liquide de revêtement de la seconde sous-buse de revêtement de surface principale est disposée sur chacun des deux côtés externes dans la direction de largeur de matériau de feuille par rapport à une partie de décharge de liquide de revêtement de la seconde buse principale de revêtement de surface principale.
PCT/JP2013/050364 2012-01-26 2013-01-11 Dispositif de fabrication de matériau de feuille d'électrode WO2013111624A1 (fr)

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JP2012014567A JP2013157091A (ja) 2012-01-26 2012-01-26 電極シート材の製造装置
JP2012-014567 2012-01-26

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WO2013111624A1 true WO2013111624A1 (fr) 2013-08-01

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JP2014182999A (ja) * 2013-03-21 2014-09-29 Nissan Motor Co Ltd 電極製造方法および電極製造装置
CN104209234A (zh) * 2014-09-02 2014-12-17 浙江安吉双虎竹木业有限公司 一种适用于竹木制品的涂胶机
WO2016143511A1 (fr) * 2015-03-09 2016-09-15 東レエンジニアリング株式会社 Dispositif de revêtement
WO2023190405A1 (fr) * 2022-03-30 2023-10-05 東レエンジニアリング株式会社 Dispositif de revêtement

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KR102110854B1 (ko) * 2016-02-05 2020-05-14 주식회사 엘지화학 주 토출 부재 및 보조 토출 부재를 포함하고 있는 전극 슬러리 코팅 장치 및 이를 사용하여 코팅하는 방법

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JP2004055537A (ja) * 2002-05-30 2004-02-19 Matsushita Electric Ind Co Ltd リチウムイオン二次電池
JP2007029789A (ja) * 2005-07-22 2007-02-08 Toray Eng Co Ltd 両面塗工基材の搬送装置
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JP2014182999A (ja) * 2013-03-21 2014-09-29 Nissan Motor Co Ltd 電極製造方法および電極製造装置
CN104209234A (zh) * 2014-09-02 2014-12-17 浙江安吉双虎竹木业有限公司 一种适用于竹木制品的涂胶机
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JP2016167337A (ja) * 2015-03-09 2016-09-15 東レエンジニアリング株式会社 塗布装置
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WO2023190405A1 (fr) * 2022-03-30 2023-10-05 東レエンジニアリング株式会社 Dispositif de revêtement

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