Method for manufacturing elongated electrode laminate and apparatus for manufacturing elongated electrode laminate

Abstract

The problem to be solved by the present invention is to provide a method and a manufacturing device with which it is possible to industrially and efficiently manufacture a long electrode laminate in which a long electrolyte membrane and a long electrode membrane are laminated without generating wrinkles or bubbles. In order to solve the problem, the manufacturing device for the long-strip-shaped electrode laminate is provided with: a roller press which conveys and presses a long-strip-shaped catalyst film and a long-strip-shaped electrolyte film with a base material in the longitudinal direction to form a long-strip-shaped electrode laminate with a base material; a base material peeling roller for peeling the base material of the long-strip-shaped electrode laminate with the base material to form a long-strip-shaped electrode laminate; a base material winding roller for winding the base material peeled off from the long base material-attached electrode laminate; and a base material peeling start part which is provided on the downstream side in the conveyance direction of the elongated electrode laminate, and which is located between a first point, which is a position having a length corresponding to the distance from the reference position to the base material winding roller, and a second point, which is a position having a length corresponding to the distance from the reference position to the base material winding roller, when the position of the base material peeling roller is used as the reference position. The distance between the second point and the first point is equal to the length of the diameter of the substrate winding roller.

Description

Technical Field

[0001] The present invention relates to a method for manufacturing a long strip-shaped electrode laminate and a manufacturing apparatus for the long strip-shaped electrode laminate. Background Art

[0002] In recent years, in order to ensure that more people have access to affordable, reliable, sustainable and advanced energy, research and development related to fuel cells that contribute to energy efficiency improvement have been carried out. A fuel cell generally has a membrane electrode assembly (MEA), and the membrane electrode assembly includes an anode-side catalyst layer and a cathode-side catalyst layer that are disposed opposite to each other with an electrolyte layer therebetween. As a method for continuously manufacturing a membrane electrode assembly, the following method is being studied: while conveying a long strip-shaped electrolyte membrane in the length direction, a cathode-side catalyst layer is laminated on one surface of the electrolyte membrane, and an anode-side catalyst layer is laminated on the other surface of the electrolyte membrane (for example, refer to Patent Document 1).

[0003] [Prior Art Documents]

[0004] (Patent Document)

[0005] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2020-102330 Summary of the Invention

[0006] [Problems to be Solved by the Invention]

[0007] However, in technologies related to fuel cells, it is important to laminate an electrode film including an anode-side catalyst layer or a cathode-side catalyst layer on an electrolyte membrane without gaps. However, if a long strip-shaped electrolyte membrane is conveyed in the length direction and an electrode film is laminated on the surface of the electrolyte membrane, wrinkles may sometimes be generated on the electrolyte membrane or the electrode film, or bubbles may be generated between the electrolyte membrane and the electrode film.

[0008] The present invention has been completed in view of the above circumstances, and an object thereof is to provide a method and a manufacturing apparatus for industrially efficiently manufacturing a long strip-shaped electrode laminate that is formed by laminating a long strip-shaped electrolyte membrane and a long strip-shaped electrode membrane without generating wrinkles or bubbles. And, furthermore, it is beneficial to improve energy efficiency.

[0009] [Technical Means for Solving the Problems]

[0010] The present inventors have found that by pressing a long strip-shaped electrolyte membrane with a substrate and a long strip-shaped catalyst membrane to obtain a long strip-shaped electrode laminate with a substrate, and then peeling the substrate using a specific method, the above problems can be solved, thereby completing the present invention. Therefore, the present invention provides the following.

[0011] (1) A method for manufacturing a strip-shaped electrode laminate, comprising: a lamination step of conveying and laminating a strip-shaped catalyst film and a strip-shaped electrolyte film with a substrate along the length direction to form a strip-shaped electrode laminate with a substrate; a substrate peeling step of conveying the strip-shaped electrode laminate with a substrate along the length direction, and at the same time pulling the substrate along a substrate peeling roller disposed on the substrate side of the strip-shaped electrode laminate with a substrate, thereby peeling the substrate to form a strip-shaped electrode laminate; and a substrate winding step of winding the substrate peeled from the strip-shaped electrode laminate with a substrate onto a substrate winding roller; and the substrate peeling step is started by the following method:

[0012] 1) Cut a part of the strip-shaped electrode laminate with a substrate along the width direction to form a cut portion, and starting from the cut portion, peel the substrate from the strip-shaped electrode laminate with a substrate;

[0013] 2) Wind the front end of the peeled substrate onto the substrate winding roller;

[0014] 3) Wind the substrate with the substrate winding roller to pull the substrate of the strip-shaped electrode laminate with a substrate.

[0015] According to the method for manufacturing a strip-shaped electrode laminate in (1), when laminating the strip-shaped catalyst film and the strip-shaped electrolyte film with a substrate in the lamination step, the strip-shaped catalyst film and the strip-shaped electrolyte film are supported by the substrate, so that wrinkles or bubbles are not likely to be generated on the formed strip-shaped electrode laminate with a substrate. In addition, when starting the substrate peeling step, it starts from the cut portion formed by cutting a part of the strip-shaped electrode laminate with a substrate along the width direction. Therefore, the substrate can be easily peeled from the strip-shaped electrode laminate with a substrate without cutting the strip-shaped electrode laminate with a substrate along the entire width direction. Thus, according to the method for manufacturing a strip-shaped electrode laminate in (1), a strip-shaped electrode laminate can be efficiently manufactured industrially without generating wrinkles or bubbles.

[0016] (2) The method for manufacturing a strip-shaped electrode laminate according to (1), wherein in the substrate peeling step, when the position of the substrate peeling roller is used as a reference position, the position where the substrate is peeled from the strip-shaped electrode laminate with a substrate is between a first point and a second point. The first point is a position whose length is equivalent to the distance from the reference position to the substrate winding roller, and the second point is at a length equivalent to the diameter of the substrate winding roller away from the first point.

[0017] In the method for manufacturing the strip-shaped electrode laminate according to (2), since the position where the base material is peeled off from the strip-shaped electrode laminate with a base material is located at the above position, the base material peeled off from the strip-shaped electrode laminate with a base material can be wound around the base material winding roll in a short time, and thus the base material peeling process can be started more simply and in a short time.

[0018] (3) A manufacturing apparatus for a strip-shaped electrode laminate, comprising: a roll press that conveys and presses a strip-shaped catalyst film and a strip-shaped electrolyte film with a base material in the length direction to form a strip-shaped electrode laminate with a base material; a base material peeling roll that is disposed on the base material side of the strip-shaped electrode laminate with a base material on the downstream side in the conveying direction of the strip-shaped electrode laminate with a base material and peels the base material of the strip-shaped electrode laminate with a base material to form a strip-shaped electrode laminate; a base material winding roll that winds the base material peeled off from the strip-shaped electrode laminate with a base material; and a base material removal start portion that is provided on the downstream side in the conveying direction of the strip-shaped electrode laminate and is located between a first point and a second point when the position of the base material peeling roll is used as a reference position, the first point being a position whose length is equivalent to the distance from the reference position to the base material winding roll, and the second point being separated from the first point by a length equivalent to the diameter of the base material winding roll.

[0019] In the manufacturing apparatus for a strip-shaped electrode laminate according to (3), when the strip-shaped catalyst film and the strip-shaped electrolyte film with a base material are pressed by the roll press, the strip-shaped catalyst film and the strip-shaped electrolyte film are supported by the base material, so that wrinkles or bubbles are not easily generated on the formed strip-shaped electrode laminate with a base material. In addition, since the base material removal start portion is located at the above position, the base material peeled off from the strip-shaped electrode laminate with a base material can be wound around the base material winding roll in a short time, and thus the process of peeling the base material from the strip-shaped electrode laminate with a base material can be started more simply and in a short time. Therefore, by using the manufacturing apparatus for a strip-shaped electrode laminate according to (3), a strip-shaped electrode laminate can be efficiently manufactured industrially without generating wrinkles or bubbles.

[0020] (4) The manufacturing apparatus for a strip-shaped electrode laminate according to (3), wherein the base material removal start portion includes a cutting tool that cuts a part of the base material in the width direction.

[0021] In the manufacturing apparatus for a strip-shaped electrode laminate according to (4), the base material can be easily cut at the base material removal start portion. Therefore, the process of peeling the base material from the strip-shaped electrode laminate with a base material can be started more simply and in a short time.

[0022] (5) The manufacturing apparatus for a strip-shaped electrode laminate according to (3) or (4), wherein the strip-shaped electrode laminate with a base material is conveyed to the base material peeling roll with the base material on the upper side.

[0023] The manufacturing apparatus for the strip-shaped electrode laminate according to (5) can more easily cut the base material. Therefore, the process of peeling the base material from the strip-shaped electrode laminate with a base material can be started more simply and in a shorter time.

[0024] (6) The manufacturing apparatus for the strip-shaped electrode laminate according to (5), wherein the manufacturing apparatus for the strip-shaped electrode laminate has a conveying roller, and the conveying roller is disposed between the base material peeling roller and the start portion of the base material peeling, and is disposed on the lower surface side of the strip-shaped electrode laminate.

[0025] With the manufacturing apparatus for the strip-shaped electrode laminate according to (6), the conveyance of the strip-shaped electrode laminate is stable, and when starting the base material peeling process, it is easy to wind the base material around the base material winding roller.

[0026] (Effects of the Invention)

[0027] According to the present invention, there can be provided a method and a manufacturing apparatus for industrially and efficiently manufacturing a strip-shaped electrode laminate without generating wrinkles or bubbles, the strip-shaped electrode laminate being formed by laminating a strip-shaped electrolyte film and a strip-shaped electrode film. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic view showing a manufacturing apparatus for a strip-shaped electrode laminate according to an embodiment of the present invention.

[0029] Figure 2A is a cross-sectional view of an electrode film used in a manufacturing method of a strip-shaped electrode laminate according to an embodiment of the present invention.

[0030] Figure 2B is a cross-sectional view of a strip-shaped electrolyte film with a base material used in a manufacturing method of a strip-shaped electrode laminate according to an embodiment of the present invention.

[0031] Figure 2C is a cross-sectional view of a strip-shaped electrode laminate with a base material obtained by using a manufacturing method of a strip-shaped electrode laminate according to an embodiment of the present invention.

[0032] Figure 3A is a drawing for explaining a method of starting a base material peeling process in a manufacturing method of a strip-shaped electrode laminate according to an embodiment of the present invention, and is a schematic view showing a state after peeling the base material from the strip-shaped electrode laminate with a base material.

[0033] Figure 3BIt is a drawing showing a starting method of a base material peeling step in a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention, and is a schematic view showing a state before the leading end of the base material peeled from the strip-shaped electrode laminate with a base material is wound around a base material winding roll.

[0034] Figure 3C It is a drawing showing a starting method of a base material peeling step in a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention, and is a schematic view showing a state after the leading end of the base material peeled from the strip-shaped electrode laminate with a base material is wound around a base material winding roll.

[0035] Figure 4A It is a drawing showing a step of peeling a base material from a strip-shaped electrode laminate with a base material in a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention, and is a schematic view showing a state after a cutting portion is formed on the strip-shaped electrode laminate with a base material.

[0036] Figure 4B It is a drawing showing a step of peeling a base material from a strip-shaped electrode laminate with a base material in a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention, and is a schematic view showing a state after a part of the base material is peeled from the cutting portion.

[0037] Figure 4C It is a drawing showing a step of peeling a base material from a strip-shaped electrode laminate with a base material in a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention, and is a schematic view showing a state after the base material is peeled off entirely in the width direction. Detailed Embodiment

[0038] Hereinafter, a method for manufacturing a strip-shaped electrode laminate and a manufacturing apparatus for the strip-shaped electrode laminate according to an embodiment of the present invention will be described with reference to the drawings. However, the following-described embodiment is an illustration of the present invention, and the present invention is not limited to the following content.

[0039] Figure 1 It is a schematic view showing a manufacturing apparatus for a strip-shaped electrode laminate according to an embodiment of the present invention. Figure 2A It is a cross-sectional view of a strip-shaped catalyst film used in a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention. Figure 2B It is a cross-sectional view of a strip-shaped electrolyte film with a base material used in a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention. Figure 2C It is a cross-sectional view of a strip-shaped electrode laminate with a base material obtained by a method for manufacturing a strip-shaped electrode laminate according to an embodiment of the present invention.

[0040] Figure 1The manufacturing apparatus 100 for the strip-shaped electrode laminate has a catalyst film unwinding roll 20, a first interlayer paper winding roll 25, an electrolyte membrane unwinding roll 30, a roll press 40, a substrate peeling roll 50, a substrate winding roll 55, a substrate peeling start portion 60, a second interlayer paper unwinding roll 70, and a strip-shaped electrode laminate winding roll 80.

[0041] The catalyst film unwinding roll 20 is provided with a catalyst film roll 10a. The catalyst film roll 10a is wound in a state where the strip-shaped catalyst film 10 and the first interlayer paper 13 overlap. Using the catalyst film unwinding roll 20, the strip-shaped catalyst film 10 and the first interlayer paper 13 are unwound from the catalyst film roll 10a (strip-shaped catalyst film unwinding process). As Figure 2A shown, the strip-shaped catalyst film 10 is a catalyst-coated diffusion media (CCDM) having a cathode-side catalyst layer 11 and a gas diffusion layer 12. The unwound strip-shaped catalyst film 10 is conveyed to the roll press 40 by a first catalyst film conveying roll 21 and a second catalyst film conveying roll 22.

[0042] The first interlayer paper 13 is conveyed to the first interlayer paper winding roll 25 by a first interlayer paper conveying roll 26. The first interlayer paper 13 is wound by the first interlayer paper winding roll 25 to form a first interlayer paper roll 13a.

[0043] The electrolyte membrane unwinding roll 30 is provided with an electrolyte membrane roll 14a. Using the electrolyte membrane unwinding roll 30, the strip-shaped electrolyte membrane 14 with a substrate is unwound from the electrolyte membrane roll 14a (strip-shaped electrolyte membrane with substrate unwinding process). As Figure 2B shown, the strip-shaped electrolyte membrane 14 with a substrate is a laminate formed by laminating a substrate 15 and an electrolyte membrane 16. In the present embodiment, the strip-shaped electrolyte membrane 14 with a substrate is conveyed to the roll press 40 with the substrate 15 on the upper side. An electrolyte membrane conveying roll 31 is disposed between the electrolyte membrane unwinding roll 30 and the roll press 40.

[0044] The roll press 40 conveys and presses the strip-shaped catalyst film 10 and the strip-shaped electrolyte membrane 14 with a substrate in the longitudinal direction to form a strip-shaped electrode laminate 17 with a substrate (pressing process). The roll press 40 has a lower roll 41 and an upper roll 42. The lower roll 41 and the upper roll 42 can be, for example, metal hot rolls. The lower roll 41 can also be a clamping roll. As Figure 2C shown, the strip-shaped electrode laminate 17 with a substrate presses the cathode-side catalyst layer 11 of the strip-shaped catalyst film 10 and the electrolyte membrane 16. The strip-shaped electrode laminate 17 with a substrate is conveyed to the substrate peeling roll 50. A strip-shaped electrode laminate conveying roll 43 is disposed between the roll press 40 and the substrate peeling roll 50.

[0045] The substrate peeling roller 50 is arranged on the substrate 15 side of the strip-shaped electrode laminate 17 with a substrate, downstream of the conveying direction of the roller press 40, relative to the roller press 40. The substrate peeling roller 50 is a roller extending in the width direction of the strip-shaped electrode laminate 17 with a substrate. While conveying the strip-shaped electrode laminate 17 with a substrate in the longitudinal direction, the substrate 15 is pulled in a direction different from the conveying direction of the strip-shaped electrode laminate 17 with a substrate (upward in Figure 1 ), thereby peeling the substrate 15 to form a strip-shaped electrode laminate 18 (substrate peeling process). The pulling direction of the substrate 15 is not particularly limited and is adjusted in consideration of conditions such as the peelability of the substrate 15.

[0046] The substrate winding roller 55 is arranged above the substrate peeling roller 50. The substrate 15 peeled off by the substrate peeling roller 50 is conveyed to the substrate winding roller 55 by the substrate conveying roller 56. The substrate 15 is wound by the substrate winding roller 55 to form a substrate roll 15a (substrate winding process).

[0047] The substrate removal start portion 60 is a portion used when starting to peel the substrate 15 from the strip-shaped electrode laminate 17 with a substrate. The substrate removal start portion 60 is arranged downstream of the conveying direction of the strip-shaped electrode laminate 18 relative to the substrate peeling roller 50. When the position of the substrate peeling roller 50 is taken as the reference position, the substrate removal start portion 60 is located between a first point 61 and a second point 62. The first point 61 is a position whose length is equivalent to the distance L1 from its reference position to the substrate winding roller, and the second point 62 is separated from the first point 61 by a length L2 equivalent to the diameter of the substrate winding roller 55. The substrate removal start portion 60 may also include a cutting tool (not shown) that cuts the substrate 15 of the strip-shaped electrode laminate 17 with a substrate in the width direction.

[0048] A first conveying roller 65 is arranged between the substrate peeling roller 50 and the substrate removal start portion 60. The first conveying roller 65 is arranged on the lower surface side of the strip-shaped electrode laminate 18. A second conveying roller 66 is arranged downstream of the conveying direction of the strip-shaped electrode laminate 18 relative to the substrate removal start portion 60. The first conveying roller 65 and the second conveying roller 66 are arranged to be in contact with the lower surface side of the strip-shaped electrode laminate 18.

[0049] A second interlayer paper unwinding roller 70 is provided with a second interlayer paper roll 19a. The second interlayer paper 19 unwound from the second interlayer paper roll 19a by the second interlayer paper unwinding roller 70 is sent to the pressing roller 71. The strip-shaped electrode laminate 18 is made to coincide with the second interlayer paper 19 by the pressing roller 71. The coincided strip-shaped electrode laminate 18 and the second interlayer paper 19 are conveyed to the strip-shaped electrode laminate winding roller 80.

[0050] The long-strip electrode laminate winding roll 80 winds the long-strip electrode laminate 18 and the second interlayer paper 19 in a state where they are overlapped to form an electrode laminate roll 18a (long-strip electrode laminate winding process).

[0051] In this way, the long-strip electrode laminate 18 is manufactured, which is formed by sequentially laminating a cathode-side catalyst layer 11 and a gas diffusion layer 12 on one surface of an electrolyte membrane 16.

[0052] Next, with reference to Figures 3A to 3C and Figures 4A to 4C , the starting method of the base material peeling process will be described. Figures 3A to 3C It is a drawing for explaining the starting method of the base material peeling process. Figure 3A It is a schematic view showing the state after the base material is peeled off from the base material-supported long-strip electrode laminate. Figure 3B It is a schematic view showing the state before the front end of the base material peeled off from the base material-supported long-strip electrode laminate is wound around the base material winding roll. Figure 3C It is a schematic view showing the state after the front end of the base material peeled off from the base material-supported long-strip electrode laminate is wound around the base material winding roll. Figures 4A to 4C It is a drawing for explaining the process of peeling the base material from the base material-supported long-strip electrode laminate. Figure 4A It is a schematic view showing the state after a cut portion is formed on the base material-supported long-strip electrode laminate. Figure 4B It is a schematic view showing the state after a part of the base material is peeled off from the cut portion. Figure 4C It is a schematic view showing the state after the base material is peeled off entirely in the width direction.

[0053] First, as Figure 3A shown, the front end of the base material 15s is peeled off from the base material-supported long-strip electrode laminate 17. The peeling of the front end of the base material 15s is performed by the base material peeling start portion 60. First, the base material-supported long-strip electrode laminate 17 is conveyed to a position beyond the base material peeling start portion 60, for example, the position of the long-strip electrode laminate winding roll 80. Next, as Figure 4A shown, a part of the base material-supported long-strip electrode laminate 17 is cut in the width direction to form a cut portion 17c. The length of the cut portion 17c in the width direction only needs to be such that the entire base material-supported long-strip electrode laminate 17 is not cut when conveyed in the length direction. For example, it can be about 1 / 4 of the width of the base material-supported long-strip electrode laminate 17. Next, as Figure 4B shown, the front end of the base material 15s of the cut portion 17c is pulled upward. Then, as Figure 4C shown, the front end of the base material 15s is further pulled upward to peel off the base material 15 in the entire width direction of the base material-supported long-strip electrode laminate 17. [[ID=,38]]

[0054] Next, asFigure 3B As shown, the front end 15s of the base material is passed through between the base material peeling roll 50 and the base material conveying roll 56. Thereafter, the front end 15s of the base material is wound around the base material winding roll 55.

[0055] And, as Figure 3C shown, the base material winding roll 55 is rotated to wind the base material 15. Thus, the peeling position of the base material 15 moves to the base material peeling roll 50, and the base material 15 of the belt-shaped base material long-strip electrode laminate 17 is pulled along the base material peeling roll 50 in a direction different from the conveying direction of the belt-shaped base material long-strip electrode laminate 17, so that the base material 15 is continuously peeled off.

[0056] According to the manufacturing method of the long-strip electrode laminate of the present embodiment configured as above, when the long-strip catalyst film 10 and the belt-shaped base material long-strip electrolyte film 14 are pressed in the pressing step, the long-strip catalyst film 10 and the long-strip electrolyte film 14 are supported by the base material 15. Therefore, wrinkles or bubbles are not likely to occur on the formed belt-shaped base material long-strip electrode laminate 17. In addition, when starting the base material peeling step, it starts from the cutting portion 17c formed by cutting a part of the belt-shaped base material long-strip electrode laminate 17 in the width direction. Therefore, the base material can be easily peeled off from the belt-shaped base material long-strip electrode laminate 17 without cutting the entire width direction of the belt-shaped base material long-strip electrode laminate 17. In addition, when the position where the base material 15 is peeled off from the belt-shaped base material long-strip electrode laminate 17 at the start of the base material peeling step is the base material peeling start portion 60, the base material 15 peeled off from the belt-shaped base material long-strip electrode laminate 17 can be wound around the base material winding roll 55 in a short time. Therefore, the base material peeling step can be started more simply and in a short time. Thus, according to the manufacturing method of the long-strip electrode laminate of the present embodiment, the long-strip electrode laminate 18 can be efficiently manufactured industrially without generating wrinkles or bubbles.

[0057] According to the manufacturing apparatus 100 of the long-strip electrode laminate of the present embodiment, when the long-strip catalyst film 10 and the belt-shaped base material long-strip electrolyte film 14 are pressed by the roll press 40, the long-strip catalyst film 10 and the long-strip electrolyte film 14 are supported by the base material 15. Therefore, wrinkles or bubbles are not likely to occur on the formed belt-shaped base material long-strip electrode laminate 17. In addition, since the base material peeling start portion 60 is located at the above position, the step of peeling the base material 15 from the belt-shaped base material long-strip electrode laminate 17 can be simply started in a short time. Thus, by using the manufacturing apparatus 100 of the long-strip electrode laminate of the present embodiment, the long-strip electrode laminate 18 can be efficiently manufactured industrially without generating wrinkles or bubbles.

[0058] In the manufacturing apparatus 100 of the strip-shaped electrode laminate according to the present embodiment, when the base material peeling start portion 60 includes a cutting tool for cutting the base material 15 in the width direction, the base material 15 can be easily cut at the base material peeling start portion 60. Therefore, the process of starting to peel the base material 15 from the strip-shaped electrode laminate 17 with the base material can be started more simply and in a shorter time.

[0059] In the manufacturing apparatus 100 of the strip-shaped electrode laminate according to the present embodiment, when the strip-shaped electrode laminate 17 with the base material is conveyed to the base material peeling roller 50 with the base material 15 on the upper side, the base material 15 can be more easily cut. Therefore, the process of starting to peel the base material 15 from the strip-shaped electrode laminate 17 with the base material can be started more simply and in a shorter time.

[0060] In the manufacturing apparatus 100 of the strip-shaped electrode laminate according to the present embodiment, when there is a first conveying roller 65 disposed between the base material peeling roller 50 and the base material peeling start portion 60 and on the lower surface side of the strip-shaped electrode laminate 18, the conveyance of the strip-shaped electrode laminate 18 is stable, and when the base material peeling process is started, it is easy to wind the front end 15s of the base material around the base material winding roller 55.

[0061] The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments.

[0062] In the present embodiment, the strip-shaped catalyst film 10 is a laminate formed by laminating the cathode-side catalyst layer 11 and the gas diffusion layer 12, but the configuration of the strip-shaped catalyst film 10 is not limited to this. For example, the strip-shaped catalyst film 10 may also be a single layer of the cathode-side catalyst layer 11. In addition, the strip-shaped catalyst film 10 may be a single layer of the anode-side catalyst layer, or may be a laminate formed by laminating the anode-side catalyst layer and the gas diffusion layer.

[0063] In addition, in the present embodiment, the strip-shaped electrode laminate 18 is formed in a roll shape, but before being formed in a roll shape, the anode-side catalyst layer may be laminated on the surface of the electrolyte membrane 16 on the side opposite to the cathode-side catalyst layer 11 side.

[0064] Reference numerals

[0065] 10 Strip-shaped catalyst film

[0066] 10a Catalyst film roll

[0067] 11 Cathode-side catalyst layer

[0068] 12 Gas diffusion layer

[0069] 13 First interlayer paper

[0070] 13a First interlayer paper roll

[0071] 14-strip-shaped electrolyte film with substrate

[0072] 14a Roll of electrolyte film

[0073] 15 Substrate

[0074] 15a Roll of substrate

[0075] 15s Front end of substrate

[0076] 16 Electrolyte film

[0077] 17 Strip-shaped electrode laminate with substrate

[0078] 18 Strip-shaped electrode laminate

[0079] 18a Roll of electrode laminate

[0080] 19 Second interlayer paper

[0081] 19a Roll of second interlayer paper

[0082] 20 Catalyst film unrolling roller

[0083] 21 First catalyst film conveying roller

[0084] 22 Second catalyst film conveying roller

[0085] 25 First interlayer paper winding roller

[0086] 26 First interlayer paper conveying roller

[0087] 30 Electrolyte film unrolling roller

[0088] 31 Electrolyte film conveying roller

[0089] 40 Roll press

[0090] 41 Lower roller

[0091] 42 Upper roller

[0092] 43 Strip-shaped electrode laminate with substrate conveying roller

[0093] 50 Substrate peeling roller

[0094] 51 Strip-shaped electrode laminate conveying roller

[0095] 55 Substrate winding roller

[0096] 56 Substrate conveying roller

[0097] 60 Starting part of substrate removal

[0098] 61 First point

[0099] 62 Second point

[0100] 65 First conveying roller

[0101] 66 Second conveying roller

[0102] 70 Second layer paper unrolling roller

[0103] 71 Pressing roller

[0104] 80 Long strip-shaped electrode laminate winding roller

Claims

1. A manufacturing method of a strip-shaped electrode laminate, comprising: A lamination step of conveying and laminating a strip-shaped catalyst film and a strip-shaped electrolyte film with a substrate along the length direction to form a strip-shaped electrode laminate with a substrate; A substrate peeling step of conveying the strip-shaped electrode laminate with a substrate along the length direction, and at the same time pulling the substrate along a substrate peeling roller disposed on the substrate side of the strip-shaped electrode laminate with a substrate, whereby the substrate is peeled off to form a strip-shaped electrode laminate; and, A substrate winding step of winding the substrate peeled off from the strip-shaped electrode laminate with a substrate onto a substrate winding roller; and, The foregoing substrate peeling step is started by the following method: 1) Cutting a part of the strip-shaped electrode laminate with a substrate in the width direction to form a cut portion, and starting from the cut portion, peeling off the substrate from the strip-shaped electrode laminate with a substrate; 2) Winding the front end of the peeled substrate onto the substrate winding roller; 3) Winding the substrate with the substrate winding roller to pull the substrate of the strip-shaped electrode laminate with a substrate.

2. The manufacturing method of the strip-shaped electrode laminate according to claim 1, wherein In the foregoing substrate peeling step, when the position of the substrate peeling roller is used as a reference position, the position where the substrate is peeled off from the strip-shaped electrode laminate with a substrate is between a first point and a second point. The first point is a position where the length is equivalent to the distance from the reference position to the substrate winding roller, and the second point is separated from the first point by a length equivalent to the diameter of the substrate winding roller.

3. A manufacturing apparatus of a strip-shaped electrode laminate, having: A roll press for conveying and laminating a strip-shaped catalyst film and a strip-shaped electrolyte film with a substrate along the length direction to form a strip-shaped electrode laminate with a substrate; A substrate peeling roller disposed on the substrate side of the strip-shaped electrode laminate with a substrate on the downstream side in the conveying direction of the strip-shaped electrode laminate with a substrate, and peeling off the substrate of the strip-shaped electrode laminate with a substrate to form a strip-shaped electrode laminate; A substrate winding roller for winding the substrate peeled off from the strip-shaped electrode laminate with a substrate; and, A substrate peeling start portion provided on the downstream side in the conveying direction of the strip-shaped electrode laminate, and when the position of the substrate peeling roller is used as a reference position, located between a first point and a second point. The first point is a position where the length is equivalent to the distance from the reference position to the substrate winding roller, and the second point is separated from the first point by a length equivalent to the diameter of the substrate winding roller.

4. The manufacturing apparatus for the strip-shaped electrode laminate according to claim 3, wherein, The foregoing substrate peeling start portion includes a cutting tool for cutting a part of the substrate in the width direction.

5. The manufacturing apparatus of the strip-shaped electrode laminate according to claim 3 or 4, wherein, The strip-shaped electrode laminate with a substrate is conveyed to the substrate peeling roller with the substrate on the upper side.

6. The manufacturing apparatus for the strip-shaped electrode laminate according to claim 5, wherein, The manufacturing apparatus of the strip-shaped electrode laminate has a conveying roller disposed between the substrate peeling roller and the substrate peeling start portion and on the lower surface side of the strip-shaped electrode laminate.

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