JP2017142897A - Membrane-catalyst layer assembly manufacturing device and method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device and a method for manufacturing a membrane-catalyst layer assembly which enable the increase in the adhesion between an electrolyte membrane and a support member to further suppress the deformation of the electrolyte membrane.SOLUTION: A membrane-catalyst layer assembly manufacturing device 1 comprises: a transporting mechanism for transporting a long belt-shaped electrolyte membrane 92 in a transporting direction which is a longitudinal direction thereof; a suction roller 20 for sucking and holding the electrolyte membrane 92 on a part of an outer peripheral face thereof, which rotates around its axis; a material supplying part 30 for supplying a first catalyst material onto a surface of the electrolyte membrane 92 moving in the state of being sucked and held on the suction roller 20 to form a first catalyst layer 9b; a sticking part 50 having a laminate roller 51, and disposed on a side downstream of the material supplying part 30 in the transporting direction for laminating a support film 93 on the surface of the electrolyte membrane 92 moving in the state of being sucked and held on the suction roller 20 to form a laminate 95; and a pressing part 70 disposed on a side downstream of the laminate roller 51 in the transporting direction for pressing the laminate 95 in its thickness direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a manufacturing apparatus and manufacturing method for a membrane / catalyst layer assembly in which a catalyst layer is formed on the surface of an electrolyte membrane.

  Conventionally, in a manufacturing process of a fuel cell, a base material such as a polymer electrolyte membrane is conveyed by a roll-to-roll method. A membrane / catalyst layer assembly used in a fuel cell is manufactured by discharging a catalyst ink containing an electrode material on both the front and back surfaces of the base material to form a catalyst layer to be an electrode layer. Is done.

  In general, electrolyte membranes used in fuel cells undergo deformation such as swelling and shrinkage due to contact with water, organic solvents, atmospheric moisture, etc., and changes in atmospheric temperature. The deformation causes wrinkles and pinholes in the electrolyte membrane, and reduces the power generation performance of the fuel cell. Therefore, in order to ensure the reliability of the fuel cell, a technique for suppressing the deformation of the electrolyte membrane is important. Such a technique for producing a membrane / catalyst layer assembly capable of suppressing deformation of the electrolyte membrane is described in, for example, Patent Document 1.

  An apparatus for manufacturing a composite film described in Patent Document 1 applies a coating liquid to an adsorption roller that adsorbs and supports a thin film on an outer peripheral surface, and one surface of a thin film that is adsorbed and supported by the adsorption roller. A coating unit, a drying unit provided so as to cover a part of the outer peripheral surface of the suction roller, and a functional layer is formed by drying a coating solution applied to one surface of the thin film to form a functional layer. Pasting means for pasting a belt-like support member to the other surface of the thin film. And a deformation | transformation of an electrolyte membrane is suppressed because a supporting member supports an electrolyte membrane.

JP 2014-229370 A

  The electrolyte membrane is supported by being in close contact with the support member. That is, as the formation area of the electrode layer on the electrolyte membrane increases, the adhesion area between the electrolyte membrane and the support member decreases and the adhesion strength decreases. For this reason, there is a need for a technique that can enhance the adhesion between the electrolyte membrane and the support member even in a small area, increase the area where the electrode layer is formed on the electrolyte membrane, and increase the usage efficiency of the electrolyte membrane.

  In addition, many irregularities exist on the surface of the suction roller. When the support member is bonded to the electrolyte membrane on the surface of the adsorption roller, a portion where the adhesion between the electrolyte membrane and the support member is insufficient due to the unevenness of the adsorption roller occurs. Further, as described above, the catalyst layer is formed on both the front and back surfaces of the electrolyte membrane. The support member is laminated on the surface of the electrolyte membrane. For this reason, the adhesive force between the electrolyte membrane and the support member is also affected by unevenness such as a thin film interposed on the back surface of the electrolyte membrane. Even in such a case, it is important to stably adhere the electrolyte membrane and the support member in order to ensure the quality of the fuel cell.

  The present invention has been made in view of such circumstances, and provides a manufacturing technique of a membrane / catalyst layer assembly capable of strengthening the adhesion between the electrolyte membrane and the support member and further suppressing the deformation of the electrolyte membrane. Objective.

  In order to solve the above-mentioned problems, the first invention of the present application is a manufacturing apparatus of a membrane / catalyst layer assembly for forming a catalyst layer on the surface of an electrolyte membrane, and the long strip-like electrolyte membrane is in the longitudinal direction. A transport mechanism that transports in the transport direction, and the electrolyte membrane is held by suction at a part of its outer peripheral surface, and the suction roller that rotates around its axis, and the electrolyte membrane that moves while being suction-held by the suction roller A material supply unit that supplies a first catalyst material to form a first catalyst layer on the surface of the electrolyte membrane, and is disposed downstream of the material supply unit in the transport direction, and moves while being adsorbed and held by the adsorption roller A pasting portion including a laminating roller that forms a laminate by laminating a support film on the surface; and a pressing portion that is disposed on the downstream side in the transport direction of the laminating roller and presses the laminate in the thickness direction.

  2nd invention of this application is a manufacturing apparatus of 1st invention, Comprising: The 2nd catalyst layer is formed in the surface opposite to the surface in which the said 1st catalyst layer is formed of the said electrolyte membrane.

  3rd invention of this application is a manufacturing apparatus of 1st invention or 2nd invention, Comprising: The porous body conveyance part which conveys a elongate porous body between the said adsorption | suction roller and the said electrolyte membrane It has further.

  4th invention of this application is a manufacturing apparatus of 3rd invention, Comprising: The said press part presses the said laminated body, after the said porous body and the said laminated body leave | separated.

  A fifth invention of the present application is the manufacturing apparatus according to any one of the first invention to the fourth invention, wherein the laminating roller presses the moving electrolyte membrane while being adsorbed and held by the adsorbing roller.

  6th invention of this application is any one manufacturing apparatus from 1st invention to 5th invention, Comprising: The said sticking part further has a heating part which heats the outer peripheral surface of the said lamination roller.

  7th invention of this application is any one manufacturing apparatus from 1st invention to 6th invention, Comprising: The said press part rotates the periphery of the axial center, pressing the said laminated body, The press roller is used. Have.

  8th invention of this application is a manufacturing apparatus of 7th invention, Comprising: The said press roller presses the said laminated body toward the said laminate roller.

  A ninth invention of the present application is the manufacturing apparatus according to the seventh or eighth invention, wherein either one of the pressing roller and the laminating roller is an elastic body.

  A tenth invention of the present application is a method of manufacturing a membrane / catalyst layer assembly in which a catalyst layer is formed on the surface of an electrolyte membrane, and a) transports a long strip-shaped electrolyte membrane in the transport direction which is the longitudinal direction thereof. And b) a step of adsorbing and holding the electrolyte membrane on a part of the outer peripheral surface of the adsorbing roller, and a step of rotating the adsorbing roller around its axis, and c) moving while adsorbed and held by the adsorbing roller. Supplying a first catalyst material to the surface of the electrolyte membrane to form a first catalyst layer; d) after the step c), the surface of the electrolyte membrane moving while being adsorbed and held by the adsorption roller A step of laminating a support film with a laminating roller to form a laminate, and e) a step of pressing the laminate in the thickness direction after the step d).

  The eleventh invention of the present application is the manufacturing method of the tenth invention, further comprising: f) transporting a long porous body while interposing between the adsorption roller and the electrolyte membrane.

  A twelfth invention of the present application is the manufacturing method of the tenth invention or the eleventh invention, wherein the step d) has a step of e) pressing the electrolyte membrane that moves while being sucked and held by the suction roller.

  A thirteenth invention of the present application is the manufacturing method according to any one of the tenth to twelfth inventions, wherein the step d) further includes a step of heating the surface of the laminating roller.

  In particular, according to the first to thirteenth inventions of the present application, the adhesion between the electrolyte membrane and the support film can be enhanced. Thereby, the malfunction resulting from the insufficient adhesion between the electrolyte membrane and the support film can be suppressed. Moreover, even if it is a case where the contact area of an electrolyte membrane and a support film is small, an electrolyte membrane and a support film can be stuck. Thereby, the formation area of the 1st catalyst layer to an electrolyte membrane can be enlarged, and the use efficiency of an electrolyte membrane can be improved.

  In particular, according to the second invention of the present application, even when the second catalyst layer is formed in advance on the surface opposite to the surface on which the first catalyst layer of the electrolyte membrane is formed, The adhesion with the support film can be strengthened.

  In particular, according to the third or fourth invention of the present application, even when the support film is laminated with the porous body interposed between the adsorption roller and the electrolyte membrane, the electrolyte membrane and the support film It is possible to reinforce the adhesion. Thereby, it is possible to suppress problems caused by insufficient adhesion between the electrolyte membrane and the support film while preventing foreign matter from adhering to the electrolyte membrane from the adsorption roller.

  In particular, according to the fifth invention of the present application, the electrolyte membrane is pressed when the support film is laminated by the laminating roller. The electrolyte membrane is further pressed by the pressing portion. Thereby, the adhesive force of an electrolyte membrane and a support film can be strengthened more.

  In particular, according to the sixth invention of the present application, the adhesion between the electrolyte membrane and the support film can be further strengthened. Moreover, the temperature change of the electrolyte membrane can be suppressed when the support film is laminated. Thereby, it can suppress that an electrolyte membrane deform | transforms by swelling and shrinkage | contraction.

  In particular, according to the seventh invention of the present application, the electrolyte membrane is pressed by the pressing roller. Thereby, the adhesive force of an electrolyte membrane and a support film can be strengthened.

  In particular, according to the eighth invention of the present application, the electrolyte membrane is pressed by the pressing roller immediately after the support film is laminated. Thereby, the electrolyte membrane is pressed by the pressing roller before the temperature decreases. Therefore, it is possible to suppress deformation such as swelling and shrinkage in the electrolyte membrane.

  In particular, according to the ninth invention of the present application, the electrolyte membrane can be pressed uniformly. Moreover, it can prevent that an electrolyte membrane is pressed too much. Thereby, the adhesive force of an electrolyte membrane and a support film can be strengthened, suppressing a deformation | transformation of the catalyst layer by excessive press.

It is the figure which showed the structure of the manufacturing apparatus of a membrane / catalyst layer assembly. It is an enlarged view of the vicinity of a peeling roller. It is the figure which showed schematic shape of the drying furnace in the cross section containing the axial center of a suction roller. It is an enlarged view of the vicinity of a laminating roller. It is an enlarged view near the bottom of the suction roller. It is the block diagram which showed the connection of a control part and each part in a manufacturing apparatus. It is a figure which shows a mode that a support film is laminated | stacked on an electrolyte membrane. It is a top view of a membrane / catalyst layer assembly. It is a figure which shows the press part vicinity of the manufacturing apparatus which concerns on a modification.

  Embodiments of the present invention will be described below with reference to the drawings.

<1. Configuration of manufacturing equipment>
FIG. 1 is a diagram showing a configuration of a manufacturing apparatus 1 for a membrane / catalyst layer assembly according to an embodiment of the present invention. The manufacturing apparatus 1 forms a first catalyst layer serving as an electrode layer on the surface of the electrolyte membrane while transporting the electrolyte membrane, which is a long strip-shaped thin film, in the transport direction that is the longitudinal direction by the transport mechanism, This is an apparatus for producing a membrane / catalyst layer assembly for a polymer electrolyte fuel cell. As shown in FIG. 1, the membrane / catalyst layer assembly manufacturing apparatus 1 of the present embodiment includes an introduction peeling unit 10, an adsorption roller 20, a material supply unit 30, a drying furnace 40, a pasting unit 50, and a porous body transport unit. 60, a pressing unit 70 and a control unit 80.

  The introduction / separation unit 10 introduces a long strip 90 composed of two layers of a back sheet 91 and an electrolyte membrane 92 to the outer peripheral surface of the suction roller 20 and also separates the back sheet 91 from the electrolyte membrane 92. is there. In the present embodiment, at least a part of the outer peripheral surface of the suction roller 20 is covered with the porous body 94. The porous body 94 is a thin film having air permeability.

  As the electrolyte membrane 92, for example, a fluorine-based or hydrocarbon-based polymer electrolyte membrane is used. Specific examples of the electrolyte membrane 92 include a polymer electrolyte membrane containing perfluorocarbon sulfonic acid (for example, Nafion (registered trademark) manufactured by DuPont of the United States, Flemion (registered trademark) manufactured by Asahi Glass Co., Ltd., and Asahi Kasei Corporation) Aciplex (registered trademark), and Goreselect (registered trademark) manufactured by Gore Co., Ltd.). The film thickness of the electrolyte membrane 92 is, for example, 5 μm to 30 μm. The electrolyte membrane 92 is swollen by moisture in the atmosphere, and contracts when the humidity is low. That is, the electrolyte membrane 92 has a property of being easily deformed according to the humidity in the atmosphere.

  The back sheet 91 is a base material for suppressing deformation of the electrolyte membrane 92. As the material of the back sheet 91, a resin having higher mechanical strength than the electrolyte membrane 92 and having an excellent shape holding function is used. Specific examples of the back sheet 91 include PEN (polyethylene naphthalate) and PET (polyethylene terephthalate) films. The film thickness of the back sheet 91 is, for example, 25 μm to 100 μm.

  As shown in FIG. 1, the introduction peeling unit 10 includes a peeling roller 11, an introduction unit 12, and a discharge unit 13.

  The peeling roller 11 is a roller that rotates around a horizontally extending axis. The peeling roller 11 has a cylindrical outer peripheral surface formed of an elastic body. The outer peripheral surface of the peeling roller 11 and the outer peripheral surface of the suction roller 20 described later are opposed to each other with a gap 14 through which the porous body 94 and the elongated strip 90 pass. Further, the peeling roller 11 is pressurized toward the suction roller 20 by an air cylinder (not shown).

  The introduction unit 12 includes a film unwinding roller 121 and a first detection roller 122. The film unwinding roller 121 and the first detection roller 122 are both arranged in parallel with the peeling roller 11. The long belt-like body 90 before supply is wound around the film unwinding roller 121. The film unwinding roller 121 is rotated by the power of a motor (not shown). When the film unwinding roller 121 rotates, the long band-shaped body 90 is unwound from the film unwinding roller 121.

  The long strip 90 fed from the film unwinding roller 121 changes its direction by contacting the outer peripheral surface of the first detection roller 122 and is conveyed to the peeling roller 11 side. The first detection roller 122 detects the tension applied to the long strip 90 at the introduction portion 12 by measuring the load received from the long strip 90 with a load cell. The control unit 80 to be described later controls the number of rotations of the film unwinding roller 121 so that the tension of the long strip 90 detected by the first detection roller 122 becomes a preset value.

  FIG. 2 is an enlarged view of the vicinity of the peeling roller 11. As shown in FIG. 2, the long belt-like body 90 that has passed through the first detection roller 122 is introduced into the gap 14 between the peeling roller 11 and the porous body 94 on the outer peripheral surface of the suction roller 20. At this time, the back sheet 91 contacts the peeling roller 11, and the electrolyte membrane 92 contacts the porous body 94 on the outer peripheral surface of the adsorption roller 20. Further, the long belt-like body 90 is pressed against the porous body 94 on the outer peripheral surface of the suction roller 20 with the pressure received from the peeling roller 11. Then, the electrolyte membrane 92 is adsorbed to the porous body 94 on the outer peripheral surface of the adsorption roller 20 by the negative pressure described later of the adsorption roller 20.

  In the present embodiment, the second catalyst layer 9a made of the second catalyst material is formed in advance on one surface of the electrolyte membrane 92 fed from the membrane unwinding roller 121. Therefore, the electrolyte membrane 92 is adsorbed to the porous body 94 on the outer peripheral surface of the adsorption roller 20 together with the second catalyst layer 9a. The second catalyst layer 9a is a coating apparatus different from the manufacturing apparatus 1, and conveys the long strip 90 formed of two layers of the back sheet 91 and the electrolyte membrane 92 by the roll-to-roll method. On the other hand, the catalyst ink is intermittently applied to the surface of the electrolyte membrane 92, and the applied catalyst ink is dried.

  The discharge unit 13 includes a back sheet winding roller 131 and a second detection roller 132. Both the back sheet take-up roller 131 and the second detection roller 132 are arranged in parallel with the peeling roller 11. The back sheet 91 that has passed through the gap 14 moves away from the porous body 94 on the outer peripheral surface of the suction roller 20 and is conveyed toward the second detection roller 132. Thereby, the back sheet 91 is peeled from the electrolyte membrane 92. The peeled back sheet 91 changes its direction by contacting the outer peripheral surface of the second detection roller 132 and is conveyed to the back sheet take-up roller 131 side.

  The back sheet take-up roller 131 is rotated by the power of a motor (not shown). As a result, the back sheet 91 is wound around the back sheet winding roller 131. The second detection roller 132 detects the tension applied to the back sheet 91 in the discharge unit 13 by measuring the load received from the back sheet 91 with a load cell. The control unit 80 which will be described later controls the rotation speed of the backsheet take-up roller 131 so that the tension of the backsheet 91 detected by the second detection roller 132 becomes a preset value.

  The adsorption roller 20 is a roller that rotates while adsorbing and holding the porous body 94 and the electrolyte membrane 92 on a part of the outer peripheral surface. The suction roller 20 has a cylindrical outer peripheral surface having a diameter larger than that of the peeling roller 11. The diameter of the suction roller 20 is, for example, 400 mm to 1600 mm. The suction roller 20 rotates around an axis extending horizontally (that is, parallel to the peeling roller 11) by the power of a motor (not shown). The rotation direction of the suction roller 20 and the rotation direction of the peeling roller 11 are opposite to each other.

  For example, a porous material such as porous carbon or porous ceramics is used as the material of the suction roller 20. Specific examples of the porous ceramic include a sintered body of alumina (Al 2 O 3) or silicon carbide (SiC). The pore diameter of the porous suction roller 20 is, for example, 5 μm or less, and the porosity is, for example, 15% to 50%. Further, the outer peripheral surface of the suction roller 20 is formed to have a surface roughness with a value of Rz (maximum height) of 5 μm or less, for example. Further, the total runout of the suction roller 20 during rotation (variation in the distance from the rotation shaft to the outer peripheral surface) is 10 μm or less.

  A suction port 21 is provided on the end surface of the suction roller 20. The suction port 21 is connected to an unillustrated suction mechanism (for example, an exhaust pump). When the suction mechanism is operated, a negative pressure is generated at the suction port 21 of the suction roller 20. A negative pressure is also generated on the outer peripheral surface of the suction roller 20 through the pores in the suction roller 20. For example, a negative pressure of 10 kPa or more is generated on the outer peripheral surface of the suction roller 20 by generating a negative pressure of 90 kPa or more at the suction port 21. The porous body 94 and the electrolyte membrane 92 are conveyed in an arc shape by the rotation of the adsorption roller 20 while being adsorbed and held on the outer peripheral surface of the adsorption roller 20 by the negative pressure.

  Further, as indicated by broken lines in FIG. 1, a plurality of water cooling tubes 22 are provided inside the suction roller 20. The water cooling pipe 22 is supplied with cooling water adjusted to a predetermined temperature from a water supply mechanism (not shown). During operation of the manufacturing apparatus 1, the heat of the suction roller 20 is absorbed by the cooling water that is a heat medium. Thereby, the suction roller 20 is cooled. The cooling water that has absorbed the heat is discharged to a drainage mechanism (not shown).

  The material supply unit 30 is a mechanism for applying catalyst ink to the surface of the electrolyte membrane 92 conveyed by the adsorption roller 20. For the catalyst ink, an electrode paste in which particles containing a first catalyst material (for example, platinum (Pt)) are dispersed in a solvent such as alcohol is used. As shown in FIG. 1, the material supply unit 30 has a coating nozzle 31. The coating nozzle 31 is provided on the downstream side of the peeling roller 11 in the conveying direction of the electrolyte membrane 92 by the suction roller 20. The coating nozzle 31 has a discharge port 311 that faces the outer peripheral surface of the suction roller 20. The discharge port 311 is a slit-like opening that extends horizontally along the outer peripheral surface of the suction roller 20.

  The coating nozzle 31 is connected to a catalyst ink supply source 33 through a supply pipe 32. An on-off valve 34 is interposed on the supply pipe 32. Therefore, when the on-off valve 34 is opened, the catalyst ink is supplied from the catalyst ink supply source 33 to the coating nozzle 31 through the supply pipe 32. Then, the catalyst ink is discharged from the discharge port 311 of the coating nozzle 31 toward the electrolyte membrane 92. As a result, the catalyst ink is applied to the outer surface of the electrolyte membrane 92 held by the suction roller 20.

  In this embodiment, the catalyst ink is intermittently discharged from the discharge port 311 of the coating nozzle 31 by opening and closing the on-off valve 34 at a constant cycle. As a result, the catalyst ink is intermittently applied to the surface of the electrolyte membrane 92 at regular intervals in the transport direction. However, the on-off valve 34 may be continuously opened, and the catalyst ink may be applied to the surface of the electrolyte membrane 92 without any break in the transport direction.

  As the first catalyst material in the catalyst ink, a material that causes a fuel cell reaction at the anode or cathode of the polymer fuel cell is used. Specifically, platinum (Pt), a platinum alloy, a platinum compound, or the like can be used as the first catalyst material. Examples of platinum alloys include, for example, at least one selected from the group consisting of ruthenium (Ru), palladium (Pd), nickel (Ni), molybdenum (Mo), iridium (Ir), iron (Fe), and the like. An alloy of metal and platinum can be mentioned. In general, platinum is used as the catalyst material for the cathode, and platinum alloy is used as the catalyst material for the anode. The catalyst ink discharged from the coating nozzle 31 may be for the cathode or for the anode. However, the catalyst layers 9a and 9b on the front and back of the electrolyte membrane 92 are formed of catalyst materials having opposite polarities.

  The drying furnace 40 is a part that dries the catalyst ink applied to the surface of the electrolyte membrane 92. The drying furnace 40 of the present embodiment is disposed downstream of the material supply unit 30 in the transport direction of the electrolyte membrane 92 by the adsorption roller 20. Further, the drying furnace 40 is provided in an arc shape along the outer peripheral surface of the suction roller 20. As shown in FIG. 1, the drying furnace 40 includes three hot air supply units 41 to 43 and two heat blocking units 44 and 45. The three hot air supply units 41 to 43 blow heated gas (hot air) toward the outer peripheral surface of the suction roller 20. When the electrolyte membrane 92 coated with the catalyst ink passes through the hot air supply units 41 to 43, the catalyst ink is dried and solidified by the hot air. That is, the solvent in the catalyst ink is vaporized, and the first catalyst layer 9 b is formed on the surface of the electrolyte membrane 92.

  The three hot air supply units 41 to 43 have different temperatures of hot air to be blown. The temperature of the hot air blown from the three hot air supply units 41 to 43 increases sequentially from the upstream side to the downstream side in the conveying direction of the electrolyte membrane 92 by the adsorption roller 20. The temperature of the hot air blown from the hot air supply unit 41 on the most upstream side in the transport direction is, for example, not less than the ambient environmental temperature and not more than 40 ° C. The temperature of the hot air blown from the second hot air supply unit 42 is, for example, 40 ° C. or more and 80 ° C. or less. Moreover, the temperature of the hot air blown from the hot air supply unit 43 on the most downstream side in the transport direction is, for example, 50 ° C. or more and 100 ° C. or less.

  As described above, in the drying furnace 40 of the present embodiment, the temperature of the hot air blown to the electrolyte membrane 92 is sequentially increased toward the downstream side in the transport direction. In this way, the temperature of the electrolyte membrane 92 and the catalyst ink can be gradually increased. Therefore, it is possible to suppress the occurrence of damage such as cracks in the first catalyst layer 9b due to rapid drying.

  The two heat blocking units 44 and 45 are provided on the upstream side and the downstream side of the three hot air supply units 41 to 43 in the conveying direction of the electrolyte membrane 92 by the adsorption roller 20. That is, one of the heat shields 44 is disposed on the upstream side in the transport direction with respect to the hot air supply unit 41 on the most upstream side in the transport direction, and the other heat shield unit 45 is on the hot air supply unit 43 on the most downstream side in the transport direction. Is also arranged downstream in the transport direction. These heat shut-off parts 44 and 45 suck the gas in the vicinity of the outer peripheral surface of the suction roller 20. Thereby, the hot air blown out from the hot air supply units 41 to 43 is prevented from flowing out to the upstream side and the downstream side in the transport direction beyond the heat blocking units 44 and 45. Further, the vapor of the solvent generated from the catalyst ink at the time of drying is prevented from flowing out to the upstream side and the downstream side in the transport direction beyond the heat blocking portions 44 and 45.

  FIG. 3 is a diagram showing a schematic shape of the drying furnace 40 in a cross section including the axis of the suction roller 20. As shown in FIG. 3, the drying furnace 40 of the present embodiment has a pair of suction parts 46 and 47. The suction portions 46 and 47 protrude in a plate shape from both side edge portions of the hot air supply portions 41 to 43 toward the suction roller 20 side. Further, the suction portions 46 and 47 extend in an arc shape along both side portions of the outer peripheral surface of the suction roller 20. These suction parts 46 and 47 suck the surrounding gas. Thereby, the hot air supplied from the hot air supply units 41 and 43 and the vapor of the solvent are prevented from flowing out beyond the suction units 46 and 47.

  The affixing part 50 is a part for affixing a belt-like support film 93 on the surface of the electrolyte membrane 92 on which the first catalyst layer 9b is formed. The affixing unit 50 is disposed on the downstream side of the drying furnace 40 in the conveying direction of the electrolyte membrane 92 by the suction roller 20. As shown in FIG. 1, the pasting unit 50 includes a laminating roller 51, a support film supply unit 52, and a laminated body collection unit 53.

  FIG. 4 is an enlarged view of the vicinity of the laminating roller 51. The laminating roller 51 is a roller that is disposed on the downstream side in the transport direction of the material supply unit 30 and rotates around an axis that extends horizontally. The laminating roller 51 has a cylindrical outer peripheral surface whose diameter is smaller than that of the suction roller 20. The outer peripheral surface of the laminating roller 51 and the outer peripheral surface of the adsorption roller 20 face each other with a gap 15 through which the porous body 94, the electrolyte membrane 92, and the support film 93 pass. The laminating roller 51 is pressed toward the suction roller by an air cylinder that is the first pressure unit 511.

  For example, a metal having high thermal conductivity is used as the material of the laminating roller 51. In addition, a heater 512 serving as a first heating unit that generates heat when energized is provided inside the laminating roller 51. For example, a sheathed heater can be used as the heater 512. When the heater 512 is energized, the outer peripheral surface of the laminating roller 51 is adjusted to a predetermined temperature higher than the environmental temperature by the heat generated from the heater 512. The temperature of the outer peripheral surface of the laminating roller 51 is measured using a temperature sensor such as a radiation thermometer, and the output of the heater 512 is set so that the outer peripheral surface of the laminating roller 51 has a constant temperature based on the measurement result. May be controlled. Further, an elastic material may be used as the material of the laminating roller 51.

  Returning to FIG. The support film supply unit 52 includes a film unwinding roller 521 and a third detection roller 522. The film unwinding roller 521 and the third detection roller 522 are both arranged in parallel with the laminating roller 51. The support film 93 before supply is wound around the film unwinding roller 521. The film unwinding roller 521 is rotated by the power of a motor (not shown). When the film unwinding roller 521 rotates, the support film 93 is unwound from the film unwinding roller 521.

  As the material of the support film 93, a resin having a mechanical strength higher than that of the electrolyte membrane 92 and having an excellent shape holding function is used. Specific examples of the support film 93 include PEN (polyethylene naphthalate) and PET (polyethylene terephthalate) films. The support film 93 may be the same as the back sheet 91. Further, the back sheet 91 taken up by the back sheet take-up roller 131 may be fed out from the film unwind roller 521 as the support film 93.

  The fed support film 93 changes its direction by contacting the outer peripheral surface of the third detection roller 522 and is conveyed to the laminating roller 51 side. The third detection roller 522 detects the tension applied to the support film 93 in the support film supply unit 52 by measuring the load received from the support film 93 with a load cell. The control unit 80 to be described later controls the rotation speed of the film unwinding roller 521 so that the tension of the support film 93 detected by the third detection roller 522 becomes a preset value.

  The support film 93 that has passed through the third detection roller 522 is introduced between the electrolyte film 92 adsorbed and held by the porous body 94 on the outer peripheral surface of the adsorption roller 20 and the laminating roller 51. At this time, the support film 93 is pressed against the electrolyte membrane 92 by the pressure from the laminating roller 51 and is heated by the heat of the laminating roller 51. As a result, the support film 93 is attached to the outer surface of the electrolyte membrane 92. The first catalyst layer 9 b formed on the surface of the electrolyte membrane 92 is sandwiched between the electrolyte membrane 92 and the support film 93. Thereby, the laminated body 95 comprised by the electrolyte membrane 92, catalyst layer 9a, 9b, and the support film 93 is formed.

  The stacked body collection unit 53 includes a stacked body winding roller 531 and a fourth detection roller 532. The laminate winding roller 531 and the fourth detection roller 532 are both arranged in parallel with the laminating roller 51. The laminated body 95 that has passed between the suction roller 20 and the laminating roller 51 moves away from the porous body 94 on the outer peripheral surface of the suction roller 20 and is pressed by a pressing portion 70 described later, toward the fourth detection roller 532. Be transported. And the laminated body 95 changes direction by contacting the outer peripheral surface of the 4th detection roller 532, and is conveyed to the laminated body winding roller 531 side.

  The laminate winding roller 531 is rotated by the power of a motor (not shown). As a result, the laminate 95 including the membrane / catalyst layer assembly composed of the electrolyte membrane 92 and the catalyst layers 9a and 9b is taken up by the laminate take-up roller 531. The fourth detection roller 532 detects the tension applied to the stacked body 95 in the stacked body collection unit 53 by measuring the load received from the stacked body 95 with a load cell. The control unit 80 to be described later controls the number of rotations of the laminate winding roller 531 so that the tension of the laminate 95 detected by the fourth detection roller 532 becomes a preset value.

  The porous body transport unit 60 is a mechanism for transporting a long strip-shaped porous body 94 interposed between the adsorption roller 20 and the electrolyte membrane 92. The porous body 94 is conveyed in a semicircular arc shape by the rotation of the adsorption roller 20 while being adsorbed and held on the surface of the adsorption roller 20. As shown in FIG. 1, the porous body transport unit 60 includes a porous body introduction unit 61 and a porous body collection unit 62.

  The porous body introducing portion 61 includes a porous body unwinding roller 611, a fifth detection roller 612, and a porous body introducing roller 613. The porous body unwinding roller 611, the fifth detection roller 612, and the porous body introduction roller 613 are all arranged in parallel with the suction roller 20. The porous body 94 before supply is wound around the porous body unwinding roller 611. The porous body unwinding roller 611 is rotated by the power of a motor (not shown). When the porous body unwinding roller 611 rotates, the porous body 94 is unwound from the porous body unwinding roller 611.

  The porous body 94 drawn out from the porous body unwinding roller 611 changes its direction by contacting the outer peripheral surface of the fifth detection roller 612 and is conveyed to the suction roller 20 side. The fifth detection roller 612 detects the tension applied to the porous body 94 in the porous body introduction portion 61 by measuring the load received from the porous body 94 with a load cell. The control unit 80 which will be described later controls the number of rotations of the porous body unwinding roller 611 so that the tension of the long strip 90 detected by the fifth detection roller 612 becomes a preset value.

  FIG. 5 is a view showing the vicinity of the bottom of the suction roller. As shown in FIGS. 1 and 5, the porous body introduction roller 613 is disposed at a position upstream of the peeling roller 11 in the rotation direction of the suction roller 20. The porous body 94 that has passed through the fifth detection roller 612 is introduced into the gap 16 between the porous body introduction roller 613 and the suction roller 20. At this time, one surface of the porous body 94 is in contact with the porous body introduction roller 613, and the other surface of the porous body 94 is in contact with the suction roller 20. The porous body 94 is pressed against the outer peripheral surface of the suction roller 20 with a pressure received from the porous body introduction roller 613. If it does so, the porous body 94 will be adsorb | sucked to the outer peripheral surface of the adsorption roller 20 with the negative pressure mentioned later of the adsorption roller 20. FIG.

  The porous body recovery unit 62 recovers the porous body 94 conveyed in an arc shape by the rotation of the suction roller 20. The porous body recovery unit 62 includes a porous body winding roller 621, a sixth detection roller 622, and a porous body peeling roller 623. The porous body winding roller 621, the sixth detection roller 622, and the porous body peeling roller 623 are all arranged in parallel with the suction roller 20. The porous body 94 that has passed between the suction roller 20 and the porous body peeling roller 623 is separated from the suction roller 20 and conveyed toward the sixth detection roller 622. Then, the porous body 94 changes its direction by contacting the outer peripheral surface of the sixth detection roller 622 and is conveyed to the porous body winding roller 621 side.

  The porous body take-up roller 621 is rotated by the power of a motor (not shown). As a result, the porous body 94 is wound around the porous body winding roller 621. The sixth detection roller 622 detects the tension applied to the porous body 94 in the porous body collection unit 62 by measuring the load received from the porous body 94 with a load cell. The control unit 80 to be described later controls the number of rotations of the porous body winding roller 621 so that the tension of the porous body 94 detected by the sixth detection roller 622 becomes a preset value.

  Thus, in the present embodiment, the electrolyte membrane 92 is adsorbed and conveyed by the adsorption roller 20 via the porous body 94. In other words, the electrolyte membrane 92 and the suction roller 20 are not in direct contact with each other when being transported by the suction roller 20. Thereby, it is possible to prevent foreign matters adhering to the adsorption roller 20 from being transferred to the electrolyte membrane 92. Moreover, the adsorption roller 20 can prevent the electrolyte membrane 92 from being heated excessively. Thereby, deformations such as swelling and shrinkage of the electrolyte membrane 92 can be suppressed.

  In this embodiment, the film unwinding roller 121 that is the unwinding portion, the first detection roller 122, the peeling roller 11, the suction roller 20, the laminating roller 51, the fourth detection roller 532, and the laminate winding that is the winding portion. Each roller of the take-up roller 531 constitutes a transport mechanism that transports the long belt-shaped electrolyte membrane 92 in the transport direction which is the longitudinal direction.

  The control unit 80 is a means for controlling the operation of each unit in the manufacturing apparatus 1. FIG. 5 is a block diagram showing connections between the control unit 80 and each unit in the manufacturing apparatus 1. As conceptually shown in FIG. 5, the control unit 80 is configured by a computer having an arithmetic processing unit 81 such as a CPU, a memory 82 such as a RAM, and a storage unit 83 such as a hard disk drive. A computer program P for executing the manufacturing process of the membrane / catalyst layer assembly is installed in the storage unit 83.

  Further, as shown in FIG. 5, the control unit 80 includes the motor for the film unwinding roller 121, the load cell for the first detection roller 122, the motor for the back sheet winding roller 131, the load cell for the second detection roller 132, and suction. Motor of roller 20, suction mechanism of suction roller 20, water supply mechanism of suction roller 20, three hot air supply parts 41 to 43, two heat blocking parts 44 and 45, two suction parts 46 and 47, first pressure part 511 air cylinder, heater 512, film unwinding roller 521 motor, third detection roller 522 load cell, laminated body winding roller 531 motor, fourth detection roller 532 load cell, porous body unwinding roller 611 motor , The load cell of the fifth detection roller 612, the motor of the porous body take-up roller 621, and the load cell of the sixth detection roller 622 can communicate with each other. It is connected. Further, the control unit 80 is also connected to an air cylinder and a heater 712 of a second pressurizing unit 711, which will be described later, so that they can communicate with each other.

  The control unit 80 temporarily reads the computer program P and data stored in the storage unit 83 into the memory 82, and the arithmetic processing unit 81 performs arithmetic processing based on the computer program P, whereby each of the above-described units is performed. Control the operation. Thereby, the manufacturing process of the membrane / catalyst layer assembly in the manufacturing apparatus 1 proceeds.

<2. About pressing part>
Next, the configuration of the pressing unit 70 will be described.

  The pressing unit 70 is disposed downstream of the gap 15 between the suction roller 20 and the laminating roller 51 in the transport direction, and presses the laminated body 95 including the electrolyte film 92. As shown in FIGS. 4 and 5, the pressing portion 70 includes a pressing roller 71 that rotates around the axis while pressing the laminated body 95.

  As shown in FIG. 4, the pressing roller 71 is a roller that is disposed downstream of the gap 15 between the suction roller 20 and the laminating roller 51 in the transport direction and rotates about a horizontally extending axis. The outer peripheral surface of the pressing roller 71 and the outer peripheral surface of the laminating roller 51 are opposed to each other with a gap 17 through which the laminated body 95 passes. Further, the pressing roller 71 is pressed toward the laminating roller 51 by an air cylinder which is the second pressurizing unit 711.

  The laminated body 95 passing through the gap 17 is pressed in the thickness direction by the pressing roller 71. Thereby, the adhesive force of the electrolyte membrane 92 and the support film 93 is strengthened. Even a portion where the adhesion between the suction roller 20 and the laminating roller 51 is insufficient is brought into close contact by being sandwiched between the laminating roller 51 and the pressing roller 71. The electrolyte membrane 92 is pressed by the pressing roller 71 immediately after the support film 93 is laminated. For this reason, the laminate 95 is pressed by the pressing roller 71 before the temperature of the laminate 95 heated by the suction roller 20 and the laminate roller 51 is lowered. Therefore, the electrolyte membrane 92 is supported by the support film 93 before the shrinkage and moisture absorption caused by the temperature decrease.

  In the present embodiment, a heater 712 that is a second heating unit that generates heat when energized is provided inside the pressing roller 71. For example, a sheathed heater can be used as the heater 712. When the heater 712 is energized, the outer peripheral surface of the pressing roller 71 is adjusted to a predetermined temperature higher than the environmental temperature by the heat generated from the heater 712. Note that the temperature of the outer peripheral surface of the pressing roller 71 is measured using a temperature sensor such as a radiation thermometer, and the output of the heater 712 is adjusted so that the outer peripheral surface of the pressing roller 71 has a constant temperature based on the measurement result. May be controlled.

  The laminated body 95 passing through the gap 17 is pressed by the pressing roller 71 whose outer peripheral surface is overheated, whereby the adhesion between the electrolyte membrane 92 and the support film 93 is further strengthened. Moreover, it can suppress that temperature falls because the laminated body 95 heated by the lamination roller 51 contacts the press roller 71. FIG. Thereby, it can suppress more that an electrolyte membrane shrinks and absorbs moisture with a temperature fall.

  One of the pressing roller 71 and the laminating roller 51 is preferably an elastic body. Further, the surfaces of the pressing roller 71 and the laminating roller 51 are preferably flat cylindrical surfaces with less irregularities than the surfaces of the suction roller 20 and the porous body 94. Thereby, the laminated body 95 is uniformly pressed by the pressing roller 71. In addition, the laminated body 95 can be prevented from being excessively pressed by the pressing roller 71. Thereby, the adhesive force of the electrolyte membrane 92 and the support film 93 can be strengthened, suppressing a deformation | transformation of the catalyst layers 9a and 9b. Further, the surface of the pressing roller 71 may be a metal mirror surface. Thereby, the unevenness | corrugation of the surface of the press roller 71 can be eliminated.

  As described above, in the present embodiment, the porous body 94 is interposed between the suction roller 20 and the electrolyte membrane 92. The electrolyte film 92 is laminated on the porous body 94 on the outer peripheral surface of the adsorption roller 20 while being pressed by the laminating roller 51. FIG. 7 is a diagram illustrating a state in which the support film 93 is laminated on the electrolyte membrane 92.

  As shown in FIG. 7, the porous body 94 has a plurality of recesses 941 for ensuring air permeability. Then, the pressing force of the laminating roller 51 when the support film 93 is laminated on the electrolyte membrane 92 is absorbed by the recess 941. For this reason, at the interface between the electrolyte membrane 92 and the support film 93 in the vicinity of the recess 941, an insufficient adhesion force portion 951 is generated due to insufficient pressing force by the laminating roller 51. The electrolyte membrane 92 is insufficiently supported by the support film 93 in the insufficient adhesion portion 951, and is likely to undergo deformation such as swelling and shrinkage. However, in the manufacturing apparatus 1 according to the present embodiment, the contact strength deficient portion 951 is pressed against the pressing roller 71 so that the contact strength is enhanced. That is, even when the support film 93 is laminated while the porous body 94 is interposed between the adsorption roller 20 and the electrolyte membrane 92, the adhesion between the electrolyte membrane 92 and the support film 93 can be enhanced. it can.

  In the present embodiment, the second catalyst layer 9 a is formed in advance on the back surface of the electrolyte membrane 92. The second catalyst layer 9 a generates a step 921 between the end portion and the electrolyte membrane 92. The step 921 absorbs the pressing force of the laminating roller 51 and reduces the adhesion between the electrolyte membrane 92 and the support film 93. However, in this embodiment, after pressing by the laminating roller 51, pressing by the pressing roller 71 is performed. For this reason, even when a thin film or the like is formed on the back surface of the electrolyte membrane 92, the electrolyte membrane 92 and the support film 93 can be stably adhered to each other.

  As described above, in the manufacturing apparatus 1 of the present embodiment, the long strip 90 is fed out from the membrane unwinding roller 121, the back sheet 91 is peeled off from the electrolyte membrane 92, and the catalyst ink is applied to the electrolyte membrane 92. The steps of drying by the drying furnace 40, attaching the support film 93 to the electrolyte membrane 92, and pressing by the pressing roller 71 are sequentially performed. Thereby, the membrane / catalyst layer assembly used for the electrode of the polymer electrolyte fuel cell is produced. The electrolyte membrane 92 is always supported by the back sheet 91, the suction roller 20, or the support film 93. The adhesion between the electrolyte membrane 92 and the support film 93 is strengthened by the pressing roller 71. Thereby, deformations such as swelling and shrinkage of the electrolyte membrane 92 are suppressed.

  FIG. 9 is a top view of the laminated body 95. L1 is the width between adjacent first catalyst layers 9b formed on the electrolyte membrane 92. L2 is the width between the first catalyst layer 9b and the end of the electrolyte membrane 92 in the width direction. The electrolyte membrane 92 and the support film 93 are in close contact with each other in the widths L1 and L2 where the first catalyst layer 9b is not formed. For this reason, when the formation area of the 1st catalyst layer 9b to the electrolyte membrane 92 is increased, the contact | adherence area of the electrolyte membrane 92 and the support film 93 will become small, and there existed a possibility that adhesive force might fall. However, in the manufacturing apparatus 1 of the present embodiment, the adhesion between the electrolyte membrane 92 and the support film 93 can be strengthened. For this reason, the width of L1 and L2 can be narrowed. Therefore, in the manufacturing apparatus 1 of this embodiment, the usage efficiency of the electrolyte membrane 92 can be improved.

<3. Modification>
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

  In the above embodiment, a porous body is interposed between the electrolyte membrane and the adsorption roller. However, the electrolyte membrane may be brought into direct contact with the suction roller without interposing a porous body. Even in such a case, a portion where the electrolyte membrane and the support film are difficult to adhere to each other due to the unevenness of the surface of the suction roller can be brought into close contact with the subsequent pressing roller.

  Moreover, in the said embodiment, the press roller of the press part pressed the laminated body toward the lamination roller. However, the pressing method by the pressing part in the present invention is not limited to this. FIG. 9 is a view showing the vicinity of the pressing portion of the manufacturing apparatus according to the modification. The pressing portion 70A of this manufacturing apparatus has a pair of pressing rollers 71A disposed on the downstream side of the laminating roller 51A. Then, the pair of pressing rollers 71A presses the laminated body 95A that has passed through the laminating roller 51A. By carrying out like this, 70 A of press parts can be arrange | positioned using a wide space.

  As shown in FIG. 9, the pressing portion 70A of this manufacturing apparatus has a pair of pressing rollers 71A. The pair of pressing rollers 71A is a roller that is disposed on the downstream side in the conveying direction of the laminating roller 51A and rotates around a horizontally extending axis. The outer peripheral surfaces of the pair of pressing rollers 71A face each other with a gap 17A through which the laminated body 95A passes. In addition, one pressing roller 71A is pressed toward the other pressing roller 71A by an air cylinder as a second pressing unit.

  The laminated body 95A passing through the laminating roller 51A is pressed by a pair of pressing rollers 71A. Thereby, the adhesive force of electrolyte membrane 92A and support film 93A is strengthened. By doing so, it is possible to suppress the crowding of the plurality of rollers and arrange the pressing portion 70A using a wide space, thereby facilitating maintenance work.

  Note that the pair of pressing rollers 71A is preferably disposed at a distance that the laminated body 95A that has passed through the laminating roller 51A can reach in several tens of seconds. By doing so, the temperature of the laminated body 95A heated by the laminating roller 51A is lowered, and the laminated body 95A can be pressed before the electrolyte membrane 92A is deformed. Further, it is preferable that one of the pair of pressing rollers 71A is an elastic member such as rubber and the other is a non-elastic member such as metal. By doing so, the laminated body 95A can be uniformly pressed by the pair of pressing rollers 71A. The pressing unit 70A may further include a heating unit that heats the outer peripheral surface of the pressing roller 71A.

  Moreover, in said embodiment, the catalyst layer was formed by discharging a catalyst material from a coating nozzle. However, the catalyst layer may be formed by transferring the catalyst material to the electrolyte membrane.

  In the above embodiment, the case where the catalyst material is formed on the other surface of the electrolyte membrane in which the catalyst layer is previously formed on one surface has been described. However, the production apparatus of the present invention may form a catalyst material for an electrolyte membrane in which a catalyst layer is not formed on either surface.

  Further, the detailed shape of the membrane / catalyst layer assembly manufacturing apparatus may be different from those in the drawings of the present application. Moreover, you may combine suitably each element which appeared in said embodiment and modification in the range which does not produce inconsistency.

DESCRIPTION OF SYMBOLS 1 Manufacturing apparatus 9a 2nd catalyst layer 9b 1st catalyst layer 10 Introduction peeling part 20 Adsorption roller 30 Material supply part 50 Pasting part 51 Laminating roller 52 Support film supply part 60 Porous body conveyance part 70 Press part 71 Press roller 80 Control part 90 Long strip 91 Back sheet 92 Electrolyte membrane 93 Support film 94 Porous body 95 Laminate

Claims (13)

An apparatus for manufacturing a membrane / catalyst layer assembly for forming a catalyst layer on the surface of an electrolyte membrane,
A transport mechanism for transporting the elongated belt-shaped electrolyte membrane in the transport direction which is the longitudinal direction thereof;
The electrolyte membrane is adsorbed and held by a part of its outer peripheral surface, and an adsorbing roller that rotates around its axis
A material supply unit that supplies a first catalyst material to form a first catalyst layer on the surface of the electrolyte membrane that moves while being adsorbed and held by the adsorption roller;
An affixing unit including a laminating roller that is disposed on the downstream side in the conveyance direction of the material supply unit and forms a laminate by laminating a support film on the surface of the electrolyte membrane that moves while being adsorbed and held by the adsorbing roller;
A pressing portion that is arranged on the downstream side in the conveying direction of the laminating roller and presses the laminated body in the thickness direction;
A manufacturing apparatus having The manufacturing apparatus according to claim 1,
The manufacturing apparatus with which the 2nd catalyst layer is formed in the surface opposite to the surface in which the said 1st catalyst layer is formed of the said electrolyte membrane. The manufacturing apparatus according to claim 1 or 2,
The manufacturing apparatus which further has a porous body conveyance part which conveys a long porous body, interposing between the said adsorption | suction roller and the said electrolyte membrane. The manufacturing apparatus according to claim 3,
The said press part is a manufacturing apparatus which presses the said laminated body after the said porous body and the said laminated body leave | separated. The manufacturing apparatus according to any one of claims 1 to 4, wherein
The laminating roller is a manufacturing apparatus that presses the electrolyte membrane that moves while being adsorbed and held by the adsorbing roller. The manufacturing apparatus according to any one of claims 1 to 5, wherein
The said sticking part is a manufacturing apparatus which further has a heating part which heats the outer peripheral surface of the said lamination roller. The manufacturing apparatus according to any one of claims 1 to 6,
The pressing portion is
A manufacturing apparatus having a pressing roller that rotates around its axis while pressing the laminate. The manufacturing apparatus according to claim 7,
The said press roller is a manufacturing apparatus which presses the said laminated body toward the said laminate roller. The manufacturing apparatus according to claim 7 or 8,
One of the pressing roller and the laminating roller is a manufacturing apparatus that is an elastic body. A method for producing a membrane / catalyst layer assembly in which a catalyst layer is formed on the surface of an electrolyte membrane,
a) a step of transporting the long belt-shaped electrolyte membrane in the transport direction which is the longitudinal direction thereof;
b) adsorbing and holding the electrolyte membrane on a part of the outer peripheral surface of the adsorbing roller, and rotating the adsorbing roller around its axis;
c) supplying a first catalyst material and forming a first catalyst layer on the surface of the electrolyte membrane that moves while adsorbed and held by the adsorption roller;
d) a step of laminating a support film with a laminating roller on the surface of the electrolyte membrane that moves while adsorbed and held by the adsorbing roller after the step c);
e) after the step d), pressing the laminate in the thickness direction;
A manufacturing method comprising: It is a manufacturing method of Claim 10, Comprising:
f) A production method further comprising a step of conveying a long porous body while interposing it between the adsorption roller and the electrolyte membrane. It is a manufacturing method of Claim 10 or Claim 11,
The step d) includes a step of e) pressing the electrolyte membrane that moves while being adsorbed and held by the adsorption roller. A manufacturing method according to any one of claims 10 to 12,
The step d) is a manufacturing method further comprising a step of heating the surface of the laminating roller.

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