KR101689645B1 - Apparatus for coating edge of electrode layer web with electrode layer - Google Patents

Apparatus for coating edge of electrode layer web with electrode layer Download PDF

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KR101689645B1
KR101689645B1 KR1020150087143A KR20150087143A KR101689645B1 KR 101689645 B1 KR101689645 B1 KR 101689645B1 KR 1020150087143 A KR1020150087143 A KR 1020150087143A KR 20150087143 A KR20150087143 A KR 20150087143A KR 101689645 B1 KR101689645 B1 KR 101689645B1
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edge
web
electrode
electrode layer
layer
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KR1020150087143A
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Korean (ko)
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김준섭
권용철
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(주)피엔티
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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
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8892—Impregnation or coating of the catalyst layer, e.g. by an ionomer
    • 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
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8896—Pressing, rolling, calendering
    • 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

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Coating Apparatus (AREA)

Abstract

Disclosed is an electrode layer edge coating apparatus for a web having an electrode layer for coating a protective layer that protects the edges of electrode layers adjacent to each other in a web having a plurality of electrode layers spaced apart. The disclosed electrode layer edge coating apparatus includes an electrode supporting layer and a web feeding unit for advancing a web having a plurality of electrode layers stacked on the lower surface of the electrode supporting layer and spaced apart from each other and extending in the longitudinal direction of the electrode supporting layer A plurality of edge detection sensors for detecting a position of an edge in a width direction of the plurality of electrode layers and an insulating coating agent for forming a protective layer on one side of a lower surface of the electrode supporting layer, And a plurality of gravure rollers disposed downstream of the plurality of edge detection sensors along the traveling direction of the web and corresponding one to one to the plurality of edge detection sensors. The gravure roller corresponding to the edge sensor moves finely in the width direction of the electrode layer according to the position of the edge sensed by one edge sensor of the plurality of edge sensors to apply the insulating coating agent.

Figure R1020150087143

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an electrode-

The present invention relates to an apparatus for coating a protective layer that protects the edges of electrode layers adjacent to each other in a web having a plurality of electrode layers spaced apart.

For example, a membrane-electrode assembly (MEA) of a fuel cell includes an electrolyte membrane, and an anode and a cathode electrode layer bonded to both sides of the electrolyte membrane. The membrane- (roll-to-roll type).

FIG. 1 is a perspective view showing an example of a web having an electrode layer running along a roll-to-roll production line. Referring to FIG. 1, a web 1 having an electrode layer includes an electrode support layer 2, And an electrode layer (4) laminated on both sides of the electrode support layer (2). The web 1 having the electrode layer shown in Fig. 1 may be a membrane-electrode assembly, and the electrode supporting layer 2 may be an electrolyte membrane. However, the present invention is not limited to the case where the electrode layer 4 is laminated on both sides of the electrode supporting layer 2, and the electrode layer 4 may be laminated only on one side of the electrode supporting layer 2 And the electrode supporting layer 2 is not necessarily limited to the electrolyte membrane.

On the other hand, the web 1 is folded along a folding line FL extending along the interval 7 between adjacent electrode layers 4 in a subsequent process so as to be accommodated at a high density in a narrow space. However, when the web 1 is folded as described above, the edges 5 of the adjacent electrode layers 4 may be broken or damaged, and a short may occur. An insulating tape (not shown) may be attached to the edge 5 in order to prevent damage or disconnection of the edge 5, but since it depends on manual work, the reliability of the operation and the working speed are lowered, The cost increases.

Korean Registered Patent No. 10-0493991

The present invention provides an apparatus for automatically coating a protective layer for protecting an edge of an electrode layer of a web having an electrode supporting layer and an electrode layer.

The present invention also provides an electrode layer edge coating apparatus which forms a web in which damage or short-circuiting of an edge portion of the electrode layer is prevented even if the web is folded along an electrode supporting layer and adjacent electrode layers of the web having the electrode layer .

The present invention provides a web feeding unit for advancing a web having an electrode supporting layer and a plurality of electrode layers stacked on a lower surface of the electrode supporting layer and extending in the longitudinal direction of the electrode supporting layer, A plurality of edge detection sensors for sensing a position of an edge in the width direction of the plurality of electrode layers and an insulating coating agent for forming a protective layer on one side of the lower surface of the electrode supporting layer, And a plurality of gravure rollers disposed downstream of the plurality of edge detection sensors along the traveling direction of the web and corresponding to the plurality of edge detection sensors in a one-to-one correspondence relationship, wherein one of the plurality of edge detection sensors The gravure roller corresponding to the edge detection sensor is fine in the width direction of the electrode layer according to the position of the edge detected by the sensor The present invention also provides an electrode layer edge coating apparatus for a web having an electrode layer for applying the insulating coating agent.

The electrode layer edge coating apparatus for a web having an electrode layer according to the present invention comprises a number of brackets such as the edge sensor for supporting one edge detection sensor and one gravure roller corresponding to the edge detection sensor, And a linear stage for finely moving the plurality of brackets so as to be finely movable in the width direction of the web. When the linear stage finely moves the brackets in the width direction of the web, A supported edge detection sensor and a gravure roller can move with the bracket.

The widthwise movement range of the web may be limited so that the plurality of brackets do not collide with the adjacent brackets.

The electrode layer edge coating apparatus for a web having an electrode layer according to the present invention may further comprise a power transmission shaft extending in the width direction of the web and passing through the plurality of brackets and a motor for rotating the power transmission shaft When the power transmission shaft rotates, the plurality of gravure rollers can be rotated by the rotational force.

Wherein the rotational force transmitting means for transmitting the rotational force of the power transmission shaft to the gravure roller includes a ball spline supported by the bracket and coupled with the power transmission shaft through the bracket, And can be finely moved in the width direction of the web without interfering with the rotation.

The plurality of edge detection sensors are divided into a left edge sensing sensor and a right edge sensing sensor for sensing the positions of the left edge and the right edge of the electrode layer, and one of the left edge sensor and the right edge sensor, The sensor may be arranged upstream of the edge detection sensor of the other kind along the traveling direction of the web.

The edge sensor may be a photo sensor for detecting the position of the edge due to a difference in reflectance between the electrode layer and the electrode support layer.

The electrode layer edge coating apparatus for a web having an electrode layer according to the present invention may further include a doctor blade for limiting the thickness of the insulating coating agent applied to the outer circumferential surface of the gravure roller to control the thickness and width of the protective layer .

The ratio of the thickness of the protective layer to the thickness of the electrode layer may be 0.4 to 0.7.

The electrode layer edge coating apparatus of the present invention automatically coating the protective layer for protecting the edge of the electrode layer of the web including the electrode supporting layer and the electrode layer, The damage or short-circuit of the edge portion of the electrode layer is prevented. Further, in order to prevent damage to the edge portion and disconnection, it is not necessary to manually attach the insulating tape to the edge portion, so that the working speed and productivity are improved and the production cost is reduced.

1 is a perspective view showing an example of a web having an electrode layer that runs along a roll-to-roll production line.
2 is a perspective view schematically showing an edge coating operation using the electrode layer edge coating apparatus of the present invention.
3 is a configuration diagram of an electrode layer edge coating apparatus according to an embodiment of the present invention.
FIG. 4 is a plan view showing the bracket of FIG. 3, the sensor supported by the bracket, and the gravure roller.
5 is an enlarged plan view of the inside of the bracket of Fig.

Hereinafter, an electrode layer edge coating apparatus for a web having an electrode layer according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The terminology used herein is a term used to properly express the preferred embodiment of the present invention, which may vary depending on the intention of the user or operator or the custom in the field to which the present invention belongs. Therefore, the definitions of these terms should be based on the contents throughout this specification.

2 is a perspective view schematically showing an edge coating operation using the electrode layer edge coating apparatus of the present invention. The operation to be performed using the electrode layer edge coating apparatus 20 (see Fig. 3) of the present invention is an operation in which the electrode supporting layer 12 and the electrode supporting layer 12 are laminated on the lower surface of the electrode supporting layer 12, (15A, 15B) of the electrode layer (14) while advancing a web (10) having a plurality of electrode layers (14) extending in the longitudinal direction of the electrode layer (12) And an insulating coating agent for forming the protective layers 18A and 18B is successively applied to portions of the lower side surface of the electrode supporting layer 12 forming the boundary with the gravure rollers 47A and 47B. The gravure rollers 47A and 47B apply the insulating coating agent while rotating in a direction reverse to the moving direction WMD of the web 10. [ The web 10 to which the insulating coating agent has been applied is dried and cured to the protective layers 18A and 18B by heat through the electrode layer edge coating apparatus 20.

FIG. 4 is a plan view showing a bracket of FIG. 3, a sensor and a gravure roller supported by the bracket, FIG. 5 is a cross- Fig. 2 to 5, an electrode layer edge coating apparatus 20 according to an embodiment of the present invention includes a web feeding unit, a plurality of edge detection sensors 35A and 35B, a plurality of gravure rollers A plurality of brackets 31A and 31B, a linear stage 30, a motor 55, a power transmission shaft 57, a coating agent hopper 67, And a controller (69).

The web feeding unit is a unit for advancing the web 10 in a direction orthogonal to its width direction, that is, in a direction orthogonal to the Y axis, and is provided with a plurality of rollers 21, 23, 25 and 29. At least one of the plurality of rollers 21, 23, 25, and 29 is a feeding roller that rotates to advance the web 10, and the remaining rollers are aligned with the traveling speed of the web 10 And may be a guide roller that guides the traveling direction of the web 10 in a rotating manner. 3 to 5, the web 10 having passed the rollers 29 disposed downstream of the gravure rollers 47A and 47B along the moving direction WMD of the web 10 proceeds to the hardening unit . The curing unit thermally dries the insulating coating agent applied by the gravure rollers 47A and 47B to form the protective layers 18A and 18B.

The plurality of edge detection sensors 35A and 35B sense the positions of the edges 15A and 15B in the width direction of the plurality of electrode layers 14 stacked on the web 10. [ Each of the plurality of electrode layers 14 has a left edge 15A and a right edge 15B. The left edge 15A of one electrode layer 14 faces the right edge 15B of another electrode layer 14 disposed adjacent to and spaced apart from the left side of the one electrode layer 14, The right edge 15B of the electrode layer 14 faces the left edge 15A of another electrode layer 14 disposed adjacent to and spaced apart from the right side of the one electrode layer 14. [ The distance between the left edge 15A and the right edge 15B facing each other is 10 to 20 mm.

The plurality of edge detection sensors 35A and 35B includes a left edge sensor 35A for sensing the position of the left edge 15A of the plurality of electrode layers 14 and a right edge 15B of the plurality of electrode layers 14, And a right edge sensor 35B for detecting the position of the right edge sensor 35B. The left edge 15A and the right edge 15B are disposed under one roller 23 disposed upstream of the linear stage 30 along the traveling direction of the web 10 and wound around the roller 23 And detects the electrode layer edges 15A and 15B of the web 10, The gap between the left edge 15A and the right edge 15B facing each other is narrowed to 10 to 20 mm as described above so that the left edge detection sensor 35A and the right edge detection sensor 35B can be moved All of the right edge detection sensors 35B are disposed upstream of all the left edge detection sensors 35A along the traveling direction of the web 10, since it is physically difficult to arrange them at equal positions along the direction of the web 10. [ In other words, the X-axis position coordinate value of all the left edge detection sensors 35A is larger than the X-axis position coordinate value of all the right edge detection sensors 35B.

The edge detection sensors 35A and 35B are photo sensors that are one of the types of non-contact type sensors and the sensing surfaces 36A and 36B of the sensors 35A and 35B face the outer peripheral surface of the roller 23. Generally, the electrode layer 14 includes carbon (C) and has a lower light reflectance than the electrode support layer 12. The edge detection sensors 35A and 35B have a light reflectance between the electrode layer 14 and the electrode support layer 12 And detects the positions of the edges 15A and 15B by the difference.

The plurality of gravure rollers 47A and 47B are rotated in a direction reverse to the advancing direction of the web 10 and a protective layer 18A is formed on a part of the lower surface of the electrode supporting layer 12 which forms a boundary with the edges 15A and 15B , 18B). The applied insulating coating agent is heated and cured to form protective layers 18A and 18B. The plurality of gravure rollers 47A and 47B are provided with a left gravure roller 47A for forming the protective layer 18A in contact with the left edge 15A and a left gravure roller 47A for forming the right edge 15B in the same manner as the edge detection sensors 35A and 35B. And a right gravure roller 47B for forming a protective layer 18B in contact with the recording layer 18B.

The gravure rollers 47A and 47B are disposed downstream of the plurality of edge detection sensors 35A and 35B along the moving direction WMD of the web 10 and correspond one to one to the plurality of edge detection sensors 35A and 35B . The width RW of the gravure rollers 47A and 47B is 1.6 to 2.2 mm and the width PW of the protective layers 18A and 18B stacked by the gravure rollers 47A and 47B is 1.5 to 2.0 mm, The thickness (PT) of the layers 18A, 18B is 3 to 15 mu m. The ratio of the thickness PT of the protective layer 18A, 18B to the thickness of the electrode layer 14 is 0.4 to 0.7. If the thickness ratio is less than 0.4, the protective layers 18A and 18B are too fine to reduce the yield of the protective layers 18A and 18B and to protect the edges 15A and 15B It is insufficient. On the other hand, if the thickness ratio is larger than 0.7, the consumption amount of the insulating coating agent is increased, the heat amount required for heating and curing the insulating coating agent is increased, the production cost is increased, It can interfere when folding along the gap.

The upper side of the gravure rollers 47A and 47B is provided with a pressure roller 54 for pressing the web 10 so that the web 10 is in close contact with the outer peripheral surface side of the gravure rollers 47A and 47B. When the web 10 passes through between the gravure rollers 47A and 47B and the pressure roller 54 and the insulative coating agent is applied, the applied direction of the web 10 is abruptly refracted, The web 10 advances parallel to the front side and rear side of the pressure roller 54 while passing between the gravure rollers 47A and 47B and the pressure roller 54 so that the web 10 is uniformly dispersed in the front side and rear side of the pressure roller 54, Front and rear coating guide rollers 27 and 28 are provided.

The coating agent hopper 67 receives an insulating coating agent supplied to the outer circumferential surface of the gravure rollers 47A and 47B. The insulating coating agent accommodated in the coating agent hopper 67 is buried on the outer circumferential surface of the gravure rollers 47A and 47B while the gravure rollers 47A and 47B are rotated and then transferred onto the lower surface of the electrode supporting layer 12 adjacent to the edges 15A and 15B (See below).

The doctor blade 53 is provided in the same number in a one-to-one correspondence with the gravure rollers 47A and 47B and is arranged in the coating hopper 67 in order to limit the thickness of the insulating coating agent transferred to the outer circumferential surface of the gravure rollers 47A and 47B. The thickness PT and the width PW of the protective layers 18A and 18B are controlled by scraping the overcoated insulating coating on the outer surfaces of the rollers 47A and 47B.

Like the plurality of edge detection sensors 35A and 35B and the plurality of gravure rollers 47A and 47B, the plurality of brackets 31A and 31B follow the position of the left edge 15A in the width direction of the web 10 And a right side bracket 31B which slightly moves in the width direction of the web 10 following the position of the right side edge 15B. The left bracket 31A supports one left edge detection sensor 35A and one left gravure roller 47A corresponding to the left edge detection sensor 35A. The right bracket 31B supports one right edge detection sensor 35B and one right gravure roller 47B corresponding to the right edge detection sensor 35B. Therefore, the number of the left bracket 31A, the left edge sensor 35A and the left gravure roller 47A are equal to each other and the number of the right side bracket 31B, the right edge sensor 35B, the right gravure roller 47B ) Are the same as each other.

The linear stage 30 has a plurality of moving slides (not shown) that can reciprocate individually in the width direction of the web 10, that is, in the direction parallel to the Y axis, (31A, 31B) are individually and finely movably supported in the width direction of the web (10), that is, in a direction parallel to the Y axis. The plurality of moving slides are connected to the same number of linear motors so as to be able to transmit power one to one. Specifically, the lower ends of the brackets 31A and 31B are fastened to the upper ends of the moving slides by bolts 33. As shown in Fig. Accordingly, when the moving slides of the linear stage 30 are finely moved individually in the width direction of the web 10, the edge detection sensors 35A and 35B supported by the brackets 31A and 31B fastened to the moving slides, The rollers 47A and 47B are moved finely with the brackets 31A and 31B by the movement direction and the moving distance of the moving slides.

The movement range of the plurality of brackets 31A and 31B in the width direction of the web 10 is limited so as not to collide with the adjacent brackets 31A and 31B. For example, a limit switch (not shown) may be provided between adjacent moving slides for supporting the brackets 31A and 31B adjacent to each other in the linear stage 30 so that when the moving slides collide with the limit switches, The slides can be configured to stop.

The controller 69 receives the sensing signal related to the positions of the edges 15A and 15B of the web 10 sensed by the edge sensors 35A and 35B and detects the positions of the edges 15A and 15B in the width direction of the electrode layer 14 And detects the deflected edges 15A and 15B by controlling the fine movement of the moving slides (not shown) of the linear stage 30 according to the degree of deflection of the positions of the edges 15A and 15B, The gravure rollers 47A and 47B corresponding to the rollers 35A and 35B move finely in the width direction of the electrode layer 14. [

The edge detection sensors 35A and 35B and the gravure rollers 47A and 47B supported on the brackets 31A and 31B are arranged in a line parallel to the traveling direction WND of the web 10, (LA, LB). The lines LA and LB are straight lines connecting the centers of the sensing surfaces 36A and 36B corresponding to each other and the edges of the outer circumferential surfaces of the gravure rollers 47A and 47B and are straight lines parallel to the X axis. The edge detection sensors 35A and 35B sense the positions of the electrode layer edges 15A and 15B of the web 10 passing the roller 23 and the controller 69 is positioned at the edges 15A and 15B When the brackets 31A and 31B supporting the edge detection sensors 35A and 35B are moved in the width direction of the electrode layer 14 in response to gravity, the gravure rollers 47A and 47B supported by the brackets 31A and 31B, And moves in the width direction of the electrode layer 14 by the same range as that of the electrodes 35A and 35B to coat the insulating coating agent. That is, the lines LA and LB follow the boundary line between the edges 15A and 15B and the lower surface of the electrode supporting layer 12 in real time due to the fine movement of the brackets 31A and 31B.

The motor 55 provides power to rotate all of the gravure rollers 47A and 47B. The power transmission shaft 57 extends parallel to the width direction of the web 10, that is, the Y axis and passes through all of the brackets 31A and 31B and has one end connected to a shaft (not shown) . When the shaft of the motor 55 rotates, the power transmitting shaft 57 rotates, and all of the gravure rollers 47A and 47B are rotated by the rotational force. 5 shows only one left bracket 31A connected to the power transmission shaft 57 but only one left bracket 31A is shown as an excerpt. In fact, all of the electrode layer edge coating apparatus 20 Brackets 31A and 31B are connected to the power transmission shaft 57. [

5, the rotational force transmitting means for transmitting the rotational force of the power transmission shaft 57 to the left gravure roller 47A supported by the left bracket 31A includes a ball spline 50, The first and second connecting gears 41 and 43 interposed between the ball spline 50 and the gravure roller coaxial gear 45. The graphene coaxial gear 45 rotates coaxially with the graphene coaxial gear 47A, Respectively. The ball spline 50, the first and second connecting gears 41 and 43, and the gravure roller coaxial roller 45 are rotatably supported by the bracket 31A.

The ball spline 50 is a mechanical element that transmits rotational motion and linear motion in the longitudinal direction of the shaft between the shaft and the member connected via the ball spline. The power transmission shaft 57 penetrates the rotating wheel of the ball spline 50 And is fastened to the rotating wheel. The outer peripheral surface 52 of the end portion of the rotary wheel is engaged with the first connection gear 41 by forming gear teeth and the first connection gear 41 is engaged with the second connection gear 43, 2 connecting gear 43 is engaged with the gravure roller coaxial gear 45. Therefore, when the power transmission shaft 57 rotates, the rotational force of the power transmission shaft 57 passes through the rotating wheel of the ball spline 50, the first connecting gear 41, the second connecting gear 43, and the gravure roller coaxial gear 45 And is transmitted to the gravure roller 47A.

Meanwhile, the rotating wheel of the ball spline 50 is relatively movable with respect to the bracket 31A in the longitudinal direction of the power transmission shaft 57, that is, in the direction parallel to the Y-axis. Therefore, when the moving slide of the linear stage 30 moves in the width direction of the web 10, the bracket 31A can move in the width direction of the web 10 together with the moving slides.

The configuration in which the left gravure roller 47A rotates and the structure in which the left bracket 31A supporting the left gravure roller 47A move parallel to the Y axis has been described above with reference to Fig. 5, but the right gravure roller 47B rotates The configuration and the structure in which the right side bracket 31B supporting it move in parallel with the Y axis are also the same. Therefore, redundant description is omitted. A pair of LM guides 61 and 62 extending parallel to the Y axis so as to penetrate all the brackets 31A and 31B guide the movement of the brackets 31A and 31B in the width direction of the web 10, (31A, 31B) in a structured manner.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the present invention. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

10: web 12: electrode support layer
14: electrode layer 15A, 15B: electrode layer edge
18A, 18B: protective layer 20: electrode layer edge coating device
30: linear stage 31A, 31B: bracket
35A, 35B: Edge detection sensors 47A, 47B: Gravure rollers
55: motor 57: power transmission shaft

Claims (9)

A web feeding unit for advancing a web having an electrode support layer and a plurality of electrode layers stacked on the lower surface of the electrode support layer and spaced apart from each other and extending in the longitudinal direction of the electrode support layer; A plurality of edge detection sensors sensing an edge position in a width direction of the plurality of electrode layers; And a plurality of gravure rollers disposed downstream of the plurality of edge detection sensors along a traveling direction of the web and corresponding to the plurality of edge detection sensors in a one-to-one correspondence to a protective layer made of an insulating coating, ,
Wherein the protective layer is applied on the lower surface of the electrode supporting layer while being in contact with the edge, but not on the electrode layer, and the adjacent facing protective layers are spaced apart from each other,
The ratio of the thickness of the protective layer to the thickness of the electrode layer is 0.4 to 0.7,
And a gravure roller corresponding to the edge sensor moves finely in a width direction of the electrode layer according to a position of an edge sensed by the edge sensor of one of the plurality of edge sensors to apply the insulating coating agent. And an electrode layer formed on the surface of the electrode layer. The method according to claim 1,
A plurality of brackets, such as the edge sensor, for supporting the edge sensor and the gravure roller corresponding to the edge sensor; And a linear stage for finely supporting the plurality of brackets individually in the width direction of the web,
Wherein the edge sensor and the gravure roller supported by the bracket move together with the bracket when the linear stage finely moves the bracket in the width direction of the web. 3. The method of claim 2,
Wherein the width of the web is limited so that the plurality of brackets do not collide with adjacent brackets. 3. The method of claim 2,
A power transmission shaft extending in a width direction of the web and passing through all of the plurality of brackets; And a motor for rotationally driving the power transmission shaft,
And the plurality of gravure rollers are rotated by the rotational force when the power transmission shaft rotates. 5. The method of claim 4,
Wherein the rotational force transmitting means for transmitting the rotational force of the power transmitting shaft to the gravure roller includes a ball spline supported by the bracket and engaged with the power transmitting shaft,
Wherein the bracket moves finely in the width direction of the web without interfering with rotation of the power transmission shaft. The method according to claim 1,
Wherein the plurality of edge detection sensors are divided into a left edge sensor and a right edge sensor for sensing a position of a left edge and a right edge of the electrode layer,
The edge sensor of one of the left edge sensor and the right edge sensor is disposed upstream of the edge sensor of the other kind along the traveling direction of the web. Device. The method according to claim 1,
Wherein the edge sensor is a photo sensor for sensing a position of the edge due to a difference in light reflectance between the electrode layer and the electrode support layer. The method according to claim 1,
And a doctor blade for limiting the thickness of the insulating coating agent applied to the outer circumferential surface of the gravure roller to control the thickness and width of the protective layer. Coating apparatus. delete
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CN116727898A (en) * 2023-08-15 2023-09-12 成都莒纳新材料科技有限公司 Electrode slice cutting device

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