WO2019181126A1 - 塗布装置 - Google Patents

塗布装置 Download PDF

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Publication number
WO2019181126A1
WO2019181126A1 PCT/JP2018/047460 JP2018047460W WO2019181126A1 WO 2019181126 A1 WO2019181126 A1 WO 2019181126A1 JP 2018047460 W JP2018047460 W JP 2018047460W WO 2019181126 A1 WO2019181126 A1 WO 2019181126A1
Authority
WO
WIPO (PCT)
Prior art keywords
insulating material
electrode material
air nozzle
air
electrode
Prior art date
Application number
PCT/JP2018/047460
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
敦 渡邉
勝彦 上田
Original Assignee
東レエンジニアリング株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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
Priority to CN201880079673.7A priority Critical patent/CN111479634B/zh
Priority to KR1020207022761A priority patent/KR102557228B1/ko
Publication of WO2019181126A1 publication Critical patent/WO2019181126A1/ja

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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
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
    • B05C11/06—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with a blast of gas or vapour
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to an apparatus for applying an electrode material (so-called active material, carbon material, etc.) and an insulating material to the surface of a core material for an electrode sheet (for example, copper foil or aluminum foil) for a secondary battery.
  • an electrode material so-called active material, carbon material, etc.
  • an insulating material to the surface of a core material for an electrode sheet (for example, copper foil or aluminum foil) for a secondary battery.
  • an electrode material is applied to one or both sides of a core material while unwinding and transporting a long core material (metal foil) wound around a reel.
  • a so-called coating apparatus is used which is dried and then wound up on a reel again.
  • an object of the present invention is to provide a coating apparatus that can easily adjust the electrode material and the insulating material to be adjacent to each other or stacked while applying the electrode material and the insulating material separately.
  • an aspect of the present invention is as follows.
  • a base material transport unit for transporting the base material at a predetermined speed in one direction;
  • An application die in which an electrode material discharge port for discharging the electrode material toward the surface of the base material and an insulating material discharge port for discharging the insulating material are disposed apart from each other;
  • An air nozzle disposed on the downstream side of the coating die and spraying an air jet toward the insulating material coated on the substrate;
  • An insulating material profile changing unit that changes at least one of the position and angle of the air nozzle and the flow rate and flow velocity of the air jet to adjust the gap between the insulating material application cross-sectional shape and the electrode material; Yes.
  • the electrode material discharge port and the insulating material discharge port are separated from each other, the discharged electrode material and the insulating material are not mixed. Then, the air jet flow of the air nozzle can be moved so that the highly fluid insulating material is close to the electrode material side to form a desired laminated state.
  • the three axes of the orthogonal coordinate system are X, Y, and Z
  • the XY plane is the horizontal plane
  • the Z direction is the vertical direction.
  • the direction of the arrow is expressed as the downstream side in the transport direction (also simply referred to as the downstream side)
  • the opposite direction is expressed as the upstream side in the transport direction (also simply referred to as the upstream side).
  • the opposite direction is expressed as below.
  • a direction of rotation about the Z direction is expressed as ⁇ .
  • FIG. 1 is a schematic diagram showing an overall configuration of an example of a form embodying the present invention.
  • FIG. 1 shows a schematic view of a coating apparatus 1 according to the present invention.
  • the coating apparatus 1 applies an electrode material and an insulating material on the surface of the substrate S.
  • the coating apparatus 1 includes a substrate transport unit 2, a coating die 3, an insulating material coating end position detection unit 4, an air nozzle 5, and an insulating material profile changing unit 6.
  • the base material transport unit 2 transports the base material S in one direction (for example, the direction indicated by the arrow v) at a predetermined speed.
  • the base material conveyance unit 2 includes an unillustrated unwinding device, a winding device, a backup roll 21, and the like.
  • the unwinding device supplies the substrate S wound in a roll while unwinding.
  • the winding device is to wind the applied material again in a roll after drying the applied material.
  • the backup roll 21 applies a predetermined tension to the substrate S being transported to eliminate wrinkles and slack. Further, the backup roll 21 is for transporting the substrate S while keeping the distance from the coating die 3 constant. Specifically, the backup roll 21 is composed of a cylindrical member having a smooth surface.
  • the coating die 3 discharges the electrode material L1 and the insulating material L2 toward the surface of the substrate S.
  • the body 30 of the coating die 3 is provided with an electrode material discharge port 31 for discharging the electrode material L1, and an insulating material discharge port 32 for discharging the insulating material L2 outside the both ends. Are provided.
  • the electrode material discharge port 31 and the insulating material discharge port 32 are spaced apart.
  • the coating die 3 When the electrode material L1 and the insulating material L2 are applied to the base material S, the coating die 3 is disposed at a position indicated by a broken line 30 ′, and the tip portions of the electrode material discharge port 31 and the insulating material discharge port 32 are located at the base.
  • the electrode material L1 and the insulating material L2 are discharged while being separated from the material S by a predetermined distance (so-called application gap).
  • a gap G is generated between the electrode material L1 applied to the surface of the substrate S and the insulating material L2.
  • the insulating material application end position detection unit 4 is arranged on the downstream side of the application die 3 and detects end position information of the insulating material L2 applied on the substrate S.
  • the insulating material application end position detection unit 4 includes the end position of the insulating material L2 in the width direction of the base material S (that is, absolute end position information), the electrode material L1, and the insulating material L2.
  • the gap dimension (that is, relative end portion position information) of the end portion is detected.
  • a strip-shaped beam LB having a predetermined length in the width direction of the base material S is irradiated obliquely with respect to the surface of the base material S and reflected.
  • a displacement meter (so-called profiler) that measures the surface shape, level difference, etc. of the substrate S is used by measuring the position of light.
  • the insulating material application end position detecting unit 4 is installed so that the belt-like beam LB is irradiated over the end portions of the electrode material L1 or the insulating material L2. By doing so, the absolute or relative end position information of the insulating material L2 applied on the substrate S can be detected.
  • the air nozzle 5 is disposed on the downstream side of the coating die 3 and blows an air jet J toward the insulating material L2 coated on the substrate S.
  • the configuration in which the air nozzle 5 is disposed on the downstream side of the insulating material application end position detection unit 4 is illustrated.
  • the tip of the nozzle is disposed further outside than the outside where the insulating material L2 is applied (that is, the side opposite to the side where the electrode material L1 is applied). Further, the tip of the air nozzle 5 is arranged so that the direction in which the air jet J blows out and the surface of the substrate S are substantially perpendicular. Alternatively, the tip of the air nozzle 5 may be inclined to the side where the electrode material L1 is applied (that is, the inner side) so that the air jet J blows out more strongly on the inner side.
  • the air jet A is blown from the outer side toward the inner side of the outer end portion to which the insulating material L2 is applied, so that the surface of the applied insulating material L2 is crushed.
  • the gaps G and G ′ with the electrode material L1 are widened so that the electrode material L1 and the insulating material L2 are in contact with each other, and the insulating material L2 is overlapped with the electrode material L1. Can do.
  • the tip of the air nozzle 5 (that is, the air jet outlet) is moved in the width direction (that is, the Y direction) of the substrate S or the thickness direction of the substrate S (that is, the Z direction) (that is, the position). And the gap G between the electrode material L1 and the insulating material L2 is adjusted.
  • the air nozzle 5 is attached to a slider of an actuator that can move in the Y direction or the Z direction as the insulating material profile changing unit 6 is illustrated. Then, when it is determined that the electrode material L1 and the insulating material L2 are in a distant state, the insulating material profile changing unit 6 brings the tip of the air nozzle 5 that blows out the air jet J closer to the insulating material L2. On the other hand, if it is determined that they are close to each other, the tip of the air nozzle 5 that blows out the air jet J is moved slightly away from the insulating material L2. Thus, by controlling the position of the slider to which the air nozzle 5 is attached, it is possible to adjust the degree to which the insulating material L2 is spread (that is, the application cross-sectional shape and end position of the insulating material L2).
  • FIG. 2 is a schematic diagram showing a main part of an example of a form embodying the present invention.
  • FIG. 2A is a plan view of the main part of the coating apparatus 1 shown in FIG. 1 and the electrode material L1 and the insulating material L2 applied on the surface of the substrate S.
  • the positional relationship between the parts is as follows. Shown to be clear.
  • 2B is a cross-sectional view taken along the line AA in FIG. 2A. The positions of the electrode material L1, the insulating material L2, and the like applied on the surface of the substrate S are shown. The relationship is shown to be clear.
  • FIG. 2 (c) shows a cross-sectional view taken along the line BB in FIG. 2 (a).
  • FIG. 2D shows a cross-sectional view taken along the line CC in FIG. 2A, and an air nozzle 52 for the electrode material L1 and the insulating material L2 applied on the surface of the substrate S. Etc. are shown so as to clarify the positional relationship.
  • the electrode material L1 and the insulating material L2 discharged from the coating die 3 are applied to the surface of the base material S in a state where a predetermined gap G is generated, but the insulating material disposed on the downstream side in the transport direction.
  • the application end position detection unit 4 detects absolute or relative end position information of the insulating material L2. Then, for example, the position of the air nozzle 5 is adjusted by the insulating material profile changing unit 6 based on the end position information of the insulating material L2, and initially a predetermined gap G is separated as shown in FIG.
  • the insulating material L2 that has been separated from the electrode material L1 is spread toward the electrode material L1 side as shown in FIG.
  • the spacing interval is reduced to the gap G ′
  • the insulating material is adjusted to the adjacent state as shown in FIG. Further, the insulating material L2 can be further spread on the electrode material L1 to form a laminated state.
  • the coating apparatus 1 Since the coating apparatus 1 according to the present invention has such a configuration, even if the electrode material discharge port and the insulating material discharge port of the coating die 3 are separated from each other, the air jet 5 of the air nozzle 5 can be used for insulation.
  • the material L2 can be expanded so as to approach the electrode material L1 side, and the cross-sectional shape of the insulating material L2 and the gap with the electrode material can be changed.
  • the coating materials can be easily adjusted to a desired adjacent or laminated state.
  • the insulating material profile changing unit 6 is configured to adjust the application cross-sectional shape and the end position of the insulating material L2 by changing the position of the tip of the air nozzle 5 in the Y direction or the Z direction. Illustrated.
  • the insulating material profile changing unit 6B having the following configuration is not limited to the insulating material profile changing unit 6 having such a configuration.
  • FIG. 3 is a schematic diagram showing a main part of a modification of the embodiment embodying the present invention.
  • FIG. 3 shows an insulating material profile changing unit 6B, which is a modification of the insulating material profile changing unit 6 of the coating apparatus 1 shown in FIG.
  • the insulating material profile changing unit 6B adjusts the application cross-sectional shape and end position of the insulating material L2 by changing the inclination angle of the tip of the air nozzle 5.
  • the insulating material profile changing unit 6B tilts the nozzle tip in the direction indicated by the arrow ⁇ when the application end position of the insulating material L2 is to be moved toward the electrode material L1 (that is, inside).
  • the flow rate and flow velocity in the X direction of the air jet J are increased.
  • the insulating material profile changing unit may have the following configuration.
  • the insulating material profile changing unit is configured to control the flow rate and / or flow velocity of the air jet J ejected from the tip of the air nozzle 5.
  • the insulating material profile changing unit when the insulating material profile changing unit wants to move the position of the coating end of the insulating material L2 toward the electrode material L1 (that is, inside), the insulating material profile changing unit sends the air jet J to the insulating material at a predetermined flow rate and / or flow velocity. Blowing toward L2, or increasing the flow rate and / or flow velocity of the air jet J to be blown.
  • the flow rate and / or flow velocity of the air jet J is adjusted by controlling the ON / OFF of the air supplied to the nozzle, controlling the pressure of the air supplied to the nozzle with an electropneumatic regulator, The opening degree of the throttle valve is controlled.
  • the above-mentioned insulating material profile change part (6, 6B etc.) illustrated the structure which controls each independently the position and angle of the air nozzle 5, and the flow volume and / or flow velocity of the air jet J, it combines in combination. It is good also as the structure made. Furthermore, it is good also as a structure which adjusts the position of the air nozzle 5 to the conveyance direction (namely, X direction) of the base material S according to the position of the front-end
  • the coating apparatus 1 Since the coating apparatus 1 according to the present invention has such a configuration, it detects the end position of the insulating material and adjusts the position of the air nozzle and / or the air jet so as to match the desired position. The position of the air nozzle and / or the flow rate or flow velocity of the air jet can be adjusted, and the thickness and end position of the insulating material can be adjusted.
  • a position indicated by a broken line 4 'in FIG. 2A that is, downstream of the air nozzle 5
  • a displacement meter that is, a profiler
  • a plurality of air nozzles 5 according to the present invention are provided in the transport direction of the substrate S, and the air nozzle 52 arranged on the downstream side is closer to the electrode material L1 side (that is, the air nozzle 51 arranged on the upstream side (that is, The configuration arranged on the inner side) is exemplified.
  • the air nozzle is not limited to such a configuration, and may have the following configuration.
  • one air nozzle may be used.
  • the structure provided with the nozzle (what is called a flat nozzle) of the structure where an air jet blows off from several fine pores located in a line with a straight line may be sufficient.
  • the structure provided with the nozzle (what is called a flat blowing nozzle) of the structure where an ellipse or a strip-like air jet spouts may be sufficient.
  • FIG. 4 is a schematic view showing a main part of another example of a form embodying the present invention.
  • FIG. 4 shows a configuration in which one air nozzle 53 having a rectangular cross section is provided as an air nozzle 5 according to the present invention, instead of the two air nozzles 51 and 52 having a circular cross section illustrated in FIG.
  • FIG. 4A is a plan view of the air nozzle 53 having a rectangular cross section and the electrode material L1 and the insulating material L2 applied on the surface of the substrate S, and is shown so that the positional relationship of each part becomes clear.
  • FIG. 4B shows a cross-sectional view taken along the line AA in FIG. 2A.
  • FIG. 4C shows a cross-sectional view taken along the line BB in FIG. 2A, and the air nozzle 53 for the electrode material L1 and the insulating material L2 applied on the surface of the substrate S is shown. Etc. are shown so as to clarify the positional relationship.
  • FIG. 4D shows a cross-sectional view taken along the line CC in FIG. 2A, and an air nozzle 53 for the electrode material L1 and the insulating material L2 applied on the surface of the substrate S. Etc. are shown so as to clarify the positional relationship.
  • the electrode material L1 and the insulating material L2 discharged from the coating die 3 are applied to the surface of the base material S in a state where a predetermined gap G is generated, but the insulating material disposed on the downstream side in the transport direction.
  • the application end position detection unit 4 detects absolute or relative end position information of the insulating material L2.
  • the position of the air nozzle 53 is adjusted by the insulating material profile changing unit 6 based on the end position information of the insulating material L2, and the electrodes are initially separated by a predetermined gap G as shown in FIG. As shown in FIG.
  • the insulating material L2 that has been separated from the working material L1 is spread toward the electrode material L1 (the spacing is reduced to the gap G ′), and finally the insulating material L2
  • the application cross-sectional shape and end position of the coating are adjusted to the adjacent state as shown in FIG. Further, the insulating material L2 can be further spread on the electrode material L1 to form a laminated state.
  • the distance between the surface of the substrate S and the tip of the air nozzle 53 (so-called nozzle height) and the position in the width direction can be set to arbitrary positions and are moved by the insulating material profile changing unit 6. Further, the cross-sectional shape and dimensions (width direction and transport direction length) of the air nozzle 53 may be appropriately set according to the viscosity of the insulating material L2, the coating width, and the transport speed of the substrate S. Further, the flow rate (also referred to as air volume) of the air jet J blown from the air nozzle 53 may be appropriately set by a manually adjusted regulator, or variable by an electropneumatic regulator or the like.
  • the air nozzle 5 may be configured to spray a heated air jet in addition to a temperature-controlled (that is, room temperature) air jet or a cooled air jet.
  • the heating temperature of the air jet is preferably determined and set as appropriate according to the material characteristics of the insulating material.
  • it is preferable to use a heated air jet because an application end portion of an insulating material having high fluidity can be rapidly solidified as compared with a normal temperature or cooled air jet. Then, since the surface can be dried and temporarily solidified from the outer end portion of the insulating material applied by the heated air jet, the width direction end portion of the insulating material is more than the end position immediately after application. It is possible to prevent solidification in a state of spreading outward (that is, the thickness of the insulating material is reduced). That is, it can be said that application can be performed without impairing the insulating performance of the insulating material.
  • the coating liquid end position detection unit 4 the air nozzle 5 the insulating material profile
  • the present invention can also be embodied by a configuration in which the changing unit 6 is appropriately added and arranged.
  • the coating liquid end position detecting unit 4 the air nozzle 5, and the insulating material profile changing unit 6 are provided with only one set.
  • the present invention can be embodied.
  • the coating liquid end position detection unit 4 may be omitted.
  • the insulating material profile changing unit 6 is first adjusted so that there is no gap between the coating material amount and the insulating material, the gap between the coating material amount and the insulating material is continuously maintained.

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  • Coating Apparatus (AREA)
  • Battery Electrode And Active Subsutance (AREA)
PCT/JP2018/047460 2018-03-22 2018-12-25 塗布装置 WO2019181126A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880079673.7A CN111479634B (zh) 2018-03-22 2018-12-25 涂布装置
KR1020207022761A KR102557228B1 (ko) 2018-03-22 2018-12-25 도포 장치

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018054008A JP6917329B2 (ja) 2018-03-22 2018-03-22 塗布装置
JP2018-054008 2018-03-22

Publications (1)

Publication Number Publication Date
WO2019181126A1 true WO2019181126A1 (ja) 2019-09-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/047460 WO2019181126A1 (ja) 2018-03-22 2018-12-25 塗布装置

Country Status (4)

Country Link
JP (1) JP6917329B2 (ko)
KR (1) KR102557228B1 (ko)
CN (1) CN111479634B (ko)
WO (1) WO2019181126A1 (ko)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN114950864A (zh) * 2022-06-17 2022-08-30 蔚来汽车科技(安徽)有限公司 电池极片涂布机及涂布电池极片的方法

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Publication number Priority date Publication date Assignee Title
CN110833970B (zh) * 2019-11-08 2020-11-20 南阳柯丽尔科技有限公司 一种便于调节角度印制电路板胶片涂布生产线
JP2023040652A (ja) * 2021-09-10 2023-03-23 東レエンジニアリング株式会社 乾燥装置
CN217595028U (zh) * 2022-03-09 2022-10-18 江苏时代新能源科技有限公司 一种涂布装置及基材加工设备

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JP2001210304A (ja) * 2000-01-27 2001-08-03 Nec Mobile Energy Kk 密閉型電池およびその製造方法
JP2010110687A (ja) * 2008-11-06 2010-05-20 Hiroshi Higuchi 枚葉型不定形素材の塗工方法および塗工装置
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Publication number Priority date Publication date Assignee Title
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Publication number Publication date
KR20200132847A (ko) 2020-11-25
JP6917329B2 (ja) 2021-08-11
JP2019166425A (ja) 2019-10-03
CN111479634A (zh) 2020-07-31
KR102557228B1 (ko) 2023-07-19
CN111479634B (zh) 2021-09-10

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