JP2017174687A - Assembly device of fuel cell stack and fuel cell stack drying method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an assembly device of a fuel cell stack capable of hardening an adhesive member while preventing positional deviation or missing, and suppressing impact of impurities, contained in the adhesive member, on a membrane electrode assembly.SOLUTION: An assembly device of a fuel cell stack clamps a membrane electrode assembly between a pair of separators. In the assembly device of the fuel cell stack, a housing section houses one separator at a predetermined position. A coating section coats one separator, housed in the housing section, with an adhesive member. A setting section sets a membrane electrode assembly or other separator. A temporary fastening section fastens the membrane electrode assembly or other separator, and one housed separator temporarily by the adhesive member. A hardening section forms a seal line in the separator by hardening the adhesive member. A removal section removes impurities from the adhesive member. A control section controls the housing section, the coating section, the setting section, the temporary fastening section, the hardening section, and the removal section, respectively.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a fuel cell stack assembly apparatus and a fuel cell stack drying method.

  Conventionally, a fuel cell stack is widely formed by bonding a membrane electrode assembly and a separator with an adhesive member. Here, in manufacturing a semiconductor component, when the adhesive member that bonds the components is heated and cured while being dried, it is ventilated with a fluid (nitrogen gas) in order to determine the cured state of the adhesive member. However, there is a technique for detecting the presence or absence of a volatile component that volatilizes from the adhesive member (see, for example, Patent Document 1).

  By the way, when an inexpensive silicone-based adhesive is used for the adhesive member, for example, the material cost can be reduced. However, such an adhesive member contains a volatile component that volatilizes when heated. Volatile components may adhere to the membrane electrode assembly and deteriorate the properties of the membrane electrode assembly. As an example, if a low molecular weight siloxane which is a volatile component and corresponds to an impurity is poisoned by a catalyst made of platinum provided in the membrane electrode assembly, the power generation performance of the fuel cell stack may be lowered.

JP-A-5-55277

  In the configuration as described in Patent Document 1, when the adhesive member is dried, no consideration is given to preventing the positional deviation or loss of the adhesive member. That is, although the influence on the membrane electrode assembly can be suppressed by supplying a fluid at the time of drying and exhausting impurities contained in the adhesive member, the position of the adhesive member may be shifted or lost due to the pressure of the fluid. is there.

  The present invention has been made in order to solve the above-described problems, and is cured while preventing misalignment or loss of the adhesive member, and the influence of impurities contained in the adhesive member on the membrane / electrode assembly. An object of the present invention is to provide a fuel cell stack assembly apparatus and a fuel cell stack drying method that can be suppressed.

  The fuel cell stack assembling apparatus according to the present invention that achieves the above object sandwiches a membrane electrode assembly between a pair of separators. The fuel cell stack assembling apparatus includes a storage unit, an application unit, a setting unit, a temporary fixing unit, a curing unit, a removing unit, and a control unit. The storage unit stores one separator in a predetermined position. The application unit applies the adhesive member to one separator stored in the storage unit. The setting unit sets the membrane electrode assembly or another separator. The temporary fixing part temporarily fixes the membrane electrode assembly or the other separator and the stored one separator by the adhesive member. The curing unit cures the adhesive member to form a seal line on the separator. The removing unit removes impurities from the adhesive member. The control unit controls the storage unit, the application unit, the setting unit, the temporary fixing unit, the curing unit, and the removal unit, respectively.

  In the fuel cell stack assembling method according to the present invention for achieving the above object, the membrane electrode assembly is sandwiched between a pair of separators. In the method of assembling the fuel cell stack, the one separator stored in a predetermined position of the storage portion and the membrane electrode assembly or the other separator are temporarily fixed by an adhesive member applied to the one separator. Curing is performed to form a seal line in the separator, and impurities are removed from the adhesive member.

  According to the fuel cell stack assembling apparatus and the fuel cell stack drying method configured as described above, impurities are removed from the adhesive member in a state where the seal line is configured and the members to be bonded are temporarily fixed. Therefore, the fuel cell stack assembly apparatus and the fuel cell stack drying method are cured while preventing misalignment or chipping of the adhesive member, and suppress the influence of impurities contained in the adhesive member on the membrane electrode assembly. can do.

It is a figure which shows typically the assembly apparatus of the fuel cell stack which concerns on embodiment. It is a flowchart which shows the assembly process of the fuel cell stack using an assembly apparatus. It is a perspective view which shows a fuel cell stack. It is a perspective view which shows a coating device typically. It is a perspective view which shows the state which conveyed the cathode side metal separator above the adsorption stand. It is a perspective view which shows the state which made the cathode side metal separator adsorb | suck to an adsorption stand. It is a perspective view which shows the state which apply | coated the adhesive agent to the cathode side metal separator. It is a perspective view which shows the state which carried out the cathode side metal separator from the adsorption stand. It is a flowchart which shows the application | coating process of the adhesive agent using a coating device. It is a perspective view which shows a lamination apparatus typically. It is a perspective view which shows continuously the state which clamps a cathode side metal separator, MEA, and an anode side metal separator with a lower clamping stand and an upper clamping stand. It is a perspective view which shows the state which clamped the cathode side metal separator, MEA, and the anode side metal separator with the lower clamping stand and the upper clamping stand. It is a flowchart which shows the lamination process of each member using a lamination apparatus. It is a perspective view which shows a drying apparatus typically. It is a perspective view which shows typically the flow path of the fluid which dries the adhesive agent which flows through the inside of a fuel cell stack. It is a timing chart which shows the state of hardening of the adhesive agent of a fuel cell stack. It is a flowchart which shows the drying process of the adhesive agent using a drying apparatus.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted. The sizes and ratios of the members in the drawings are exaggerated for convenience of explanation and may be different from the actual sizes and ratios.

  The outline of the assembly apparatus 100 of the fuel cell stack 10 will be briefly described with reference to FIGS. 1 and 2.

  FIG. 1 is a diagram schematically illustrating an assembly apparatus 100 for a fuel cell stack 10 according to an embodiment. FIG. 2 is a flowchart showing an assembly process S200 of the fuel cell stack 10 using the assembly apparatus 100.

  As shown in FIG. 1, the assembly device 100 of the fuel cell stack 10 according to the embodiment includes a coating unit (coating device 110) that applies an adhesive member (adhesive 14) to a bonding member, and a plurality of bonding members stacked. A stacking unit (stacking device 120) that forms the fuel cell stack 10 and a drying unit (drying device 130) that dries the adhesive 14 of the fuel cell stack 10 are provided. In the assembly device 100 of the fuel cell stack 10, a storage unit that stores one separator (cathode side metal separator 11 or anode side metal separator 13) in a predetermined position corresponds to the coating device 110 and the drying device 130. An application unit that applies an adhesive member (adhesive 14) to one separator (for example, the cathode-side metal separator 11) stored in the storage unit corresponds to the application device 110. A setting unit for setting the membrane electrode assembly (MEA 12) or another separator (for example, the anode side metal separator 13) corresponds to the coating device 110 or the laminating device 120. The membrane electrode assembly (MEA 12) or other separator (for example, anode-side metal separator 13) and the one separator (for example, cathode-side metal separator 11) accommodated temporarily by the adhesive member (adhesive 14). The temporary fixing portion corresponds to the drying device 130. A curing unit that cures the adhesive member (adhesive 14) to form a seal line on the separator (cathode side metal separator 11 or anode side metal separator 13) corresponds to the drying device 130. The removing unit that removes impurities from the adhesive member (adhesive 14) corresponds to the drying device 130. Control units that respectively control the storage unit, the application unit, the setting unit, the temporary fixing unit, the curing unit, and the removal unit correspond to the controllers of the respective devices.

  As shown in FIG. 2, the assembly process S200 for assembling the fuel cell stack 10 according to the embodiment includes a coating process S210 performed using the coating apparatus 110, a stacking process S220 performed using the stacking apparatus 120, and a drying apparatus 130. It has drying process S230 implemented using. In the assembling method of the fuel cell stack 10, one separator (for example, the cathode side metal separator 11) housed in a predetermined position of the housing portion and the MEA 12 or another separator (for example, the anode side metal separator 13) are combined into one separator ( For example, the adhesive 14 applied to the cathode side metal separator 11) is temporarily fixed and then cured to form a seal line on the separator (cathode side metal separator 11 or anode side metal separator 13), and impurities are removed from the adhesive 14 This method corresponds to the coating step S210 and the drying step S230.

  The coating apparatus 110, the laminating apparatus 120, and the drying apparatus 130 are an automatic machine that controls the entire process by a controller, a semi-automatic machine that the operator controls a part of the process, or a manual machine that the operator controls the entire process. Either configuration may be adopted. A transport mechanism that automatically transports the bonding member may be provided between the coating apparatus 110 and the stacking apparatus 120. A transport mechanism that automatically transports the fuel cell stack 10 may be provided between the stacking device 120 and the drying device 130.

  Here, the outline of the fuel cell stack 10 assembled by the assembling apparatus 100 will be briefly described with reference to FIG.

  FIG. 3 is a perspective view showing the fuel cell stack 10. FIG. 3A shows the fuel cell stack 10 in a state where the respective joining members are laminated. FIG. 3B shows the fuel cell stack 10 in a state in which each joining member is disassembled.

  The fuel cell stack 10 is formed by stacking the joining members in the order of the cathode side metal separator 11, the membrane electrode assembly (MEA 12), and the anode side metal separator 13.

  As shown in FIG. 3B, the cathode-side metal separator 11 includes an active area 11a and a manifold hole 11b. The active area 11a has a periodic uneven shape and is disposed to face the active area 12a of the MEA 12. The active area 11a constitutes a flow path K2 through which a medium (air containing oxygen corresponding to an oxidant gas or pure oxygen) flows in a gap between the MEA 12 and the active area 12a. The manifold hole 11b is composed of three through holes that are opened on both sides of the active area 11a. In the stacked fuel cell stacks 10, the medium (hydrogen corresponding to the fuel gas, air corresponding to the oxidizing gas, and cooling) A water flow channel (hydrogen flow channel K1, air flow channel K2, or / and cooling water flow channel K3) is configured.

  As shown in FIG. 3B, the MEA 12 includes an active area 12a and a manifold hole 12b. The MEA 12 is configured by holding a membrane electrode assembly corresponding to a portion of the active area 12a by a frame. The membrane electrode assembly is configured by sandwiching an electrolyte membrane between an anode and a cathode, and generates electric power from the supplied fuel medium (hydrogen and oxygen). The manifold hole 12b is composed of three through-holes opened in the frame portions on both sides of the active area 12a. In the plurality of stacked fuel cell stacks 10, the medium (corresponding to hydrogen or oxidizing gas corresponding to fuel gas) The flow path (K1, K2, and K3) is configured to circulate air and cooling water.

  As shown in FIG. 3B, the anode-side metal separator 13 has the same configuration as the cathode-side metal separator 11, and includes an active area 13a and a manifold hole 13b. The active area 13a is disposed to face the active area 12a of the MEA 12. The active area 13a constitutes a flow path K1 through which a medium (hydrogen corresponding to fuel gas) flows in a gap between the MEA 12 and the active area 12a. Further, cooling water is circulated through a flow path K3 provided between the cathode side metal separator 11 of one fuel cell stack 10 and the anode side metal separator 13 of another adjacent fuel cell stack 10.

  As shown in FIG. 3B, the adhesive 14 adheres adjacent joining members to each other and forms edges of the flow paths (K1, K2, and K3) between the adjacent joining members. The adhesive 14 is applied so as to surround the active area 11a and the six manifold holes 11b of the cathode-side metal separator 11 in an annular shape. Further, the adhesive 14 is applied so as to surround each of the manifold holes 11b to be sealed independently. Similarly, the adhesive 14 is applied so as to encircle the active area 12a and the six manifold holes 12b of the MEA 12 in a ring shape. Further, the adhesive 14 is applied so as to surround each of the manifold holes 12b to be sealed independently. For example, a silicone-based adhesive is used as the adhesive 14. The silicone-based adhesive contains a low molecular siloxane. Low molecular weight siloxane affects the platinum of MEA 12 and is a volatile component that readily volatilizes when heated and corresponds to an impurity. The adhesive 14 containing low molecular siloxane has sufficient strength for the fuel cell stack 10 and is inexpensive.

  Next, details of the coating apparatus 110 constituting the assembly apparatus 100 will be described with reference to FIGS. 4 to 6.

  The configuration of the coating apparatus 110 will be described with reference to FIG.

  FIG. 4 is a perspective view schematically showing the coating apparatus 110.

  The coating device 110 applies the adhesive 14 containing impurities that affect the membrane electrode assembly to the MEA 12 and the cathode side metal separator 11, respectively.

  The adsorption table 111 adsorbs and holds the MEA 12 or the cathode side metal separator 11. The adsorption platform 111 is formed in a rectangular shape and includes an adsorption surface 111 a that is larger than the outer shapes of the MEA 12 and the cathode-side metal separator 11. In the suction surface 111a, suction holes 111b for sucking the MEA 12 or the cathode-side metal separator 11 are opened in a lattice shape. Each suction hole 111 b communicates with the inside of the suction stand 111 and faces one end of the suction stand 111 in the short direction.

  The pipe 112 connects the suction hole 111 b communicated inside the suction stand 111 and the pump 113. One end of the pipe 112 is connected to one end of the suction stand 111 in the short direction. The other end of the pipe 112 is connected to the pump 113.

  The pump 113 adsorbs the MEA 12 or the cathode-side metal separator 11 to the adsorption surface 111a while sucking outside air from the adsorption hole 111b of the adsorption table 111 through the pipe 112. The pump 113 is configured by a simple vacuum pump.

  The suction pad 114 sucks and transports the MEA 12 and the cathode side metal separator 11. The pad 114 a of the suction pad 114 is formed in a rectangular shape and includes a suction surface 114 b that covers the active area 12 a of the MEA 12 and the active area 11 a of the cathode-side metal separator 11. Suction holes 114c are opened in a lattice shape on the suction surface 114b. Each suction hole 114c communicates with the inside of the pad 114a. The column 114d is connected to the center of the upper surface of the pad 114a. The support column 114d is connected to a pump that sucks the MEA 12 or the cathode-side metal separator 11 and a robot hand that moves the suction pad 114 through a suction hole 114c communicating with the inside of the pad 114a.

  The dispenser 115 forms an edge of a flow path (K1, K2, and K3) through which a medium (hydrogen corresponding to the fuel gas, air corresponding to the oxidizing gas, and cooling water) flows in the fuel cell stack 10. Adhesive 14 is applied to MEA 12 or cathode side metal separator 11. The dispenser 115 applies the adhesive 14 so as to collectively surround the active area 11a and the six manifold holes 11b of the cathode side metal separator 11 in an annular shape. Further, the dispenser 115 applies the adhesive 14 so as to independently surround each of the manifold holes 11b to be sealed. The dispenser 115 applies the adhesive 14 to the MEA 12 in the same manner as the cathode-side metal separator 11. The dispenser 115 is connected to a tank that stores the adhesive 14 and a three-axis linear movement stage (an XY axis that moves on a horizontal plane and a Z axis that moves vertically) that moves the dispenser 115.

  The controller 116 includes a ROM, a CPU, and a RAM. A ROM (Read Only Memory) stores a control program related to the pump 113, the suction pad 114, and the dispenser 115. A CPU (Central Processing Unit) controls the pump 113, the suction pad 114, and the dispenser 115 based on a control program stored in the ROM. A RAM (Random Access Memory) temporarily stores data related to the pump 113, the suction pad 114, and the dispenser 115 that are being controlled.

  The operation of the coating apparatus 110 will be described with reference to FIGS.

  FIG. 5A is a perspective view showing a state in which the cathode-side metal separator 11 is conveyed above the adsorption table 111. FIG. 5B is a perspective view showing a state in which the cathode-side metal separator 11 is adsorbed on the adsorption table 111. FIG. 5C is a perspective view showing a state where the adhesive 14 is applied to the cathode-side metal separator 11. FIG. 5D is a perspective view showing a state in which the cathode-side metal separator 11 is unloaded from the adsorption table 111. FIG. 6 is a flowchart showing a coating process S210 of the adhesive 14 using the coating apparatus 110.

  In FIG. 5A, the suction pad 114 sucks the cathode-side metal separator 11 from a table in which a plurality of cathode-side metal separators 11 are stacked and stored, and conveys them above the adsorption table 111.

  In FIG. 5B, after the suction pad 114 descends toward the suction table 111, the suction of the cathode side metal separator 11 is released, and the cathode side metal separator 11 is placed on the suction table 111 (S211). The pump 113 sucks the cathode-side metal separator 11 while sucking air from the suction hole 111b of the suction stand 111 (S212). Thereafter, the suction pad 114 rises and is separated from the suction table 111.

  In FIG. 5C, the dispenser 115 descends toward the adsorption platform 111 and approaches the cathode side metal separator 11. The dispenser 115 applies the adhesive 14 so as to collectively surround the active area 11a and the six manifold holes 11b of the cathode side metal separator 11 in an annular shape. Further, the dispenser 115 applies the adhesive 14 so as to independently surround each of the manifold holes 11b to be sealed (S213).

  In FIG. 5D, the pump 113 stops operating and releases the adsorption to the cathode side metal separator 11 (S214). After the suction pad 114 descends toward the adsorption table 111, it sucks the cathode side metal separator 11 and rises away from the adsorption table 111. The dispenser 115 is also lifted away from the suction table 111. The suction pad 114 conveys the cathode side metal separator 11 toward the stacking device 120 (S215).

  The coating apparatus 110 causes the MEA 12 to be adsorbed on the adsorption table 111 and apply the adhesive 14 in the same manner as the cathode-side metal separator 11, and then transports it toward the stacking apparatus 120.

  Next, details of the laminating apparatus 120 constituting the assembling apparatus 100 will be described with reference to FIGS.

  The configuration of the laminating apparatus 120 will be described with reference to FIG.

  FIG. 7 is a perspective view schematically showing the stacking apparatus 120.

  The laminating apparatus 120 laminates the joining members via the adhesive 14 in the order of the cathode side metal separator 11, the MEA 12, and the anode side metal separator 13.

  The lower clamping table 121 holds the cathode side metal separator 11, the MEA 12, and the anode side metal separator 13 together with the upper clamping table 124. The lower clamping base 121 is made of a metal having heat resistance and is formed in a rectangular shape. The upper surface 121 a of the upper clamping table 124 is larger than the outer shape of the cathode-side metal separator 11. Screw grooves 121 b are provided at the four corners of the lower clamping table 121. The screw groove 121b fastens the bolt 127 with screws.

  The lower clamping base 121 includes a vent hole 121c on the upper surface 121a at a portion facing the manifold hole 11b of the cathode side metal separator 11. The vent hole 121c is used in the drying step S230 performed using the drying device 130. The vent hole 121c includes three vent holes 121c1 located on the left side in the figure and three vent holes 121c2 provided on the right side in the figure. The pipes 132 of the drying device 130 are joined to both ends of the lower clamping table 121 along the short direction. A pipe 132 joined to one end (one of both ends) of the lower clamping table 121 is connected to a vent hole 121c1 communicated inside the lower clamping table 121. On the other hand, the pipe 132 joined to the other end (the other of both ends) of the lower clamping table 121 is connected to a vent hole 121c2 communicated inside the lower clamping table 121.

  The lower clamping base 121 includes a detection hole 121d between the lower holding member 122 and the lower regulating member 123 on the upper surface 121a. The detection hole 121d is used in the drying step S230 performed using the drying device 130. A pipe 132 of the drying device 130 is joined to one end along the longitudinal direction of the lower clamping table 121. The pipe 132 is connected to a detection hole 121 d communicated inside the lower clamping table 121.

  The lower holding member 122 holds the cathode side metal separator 11 conveyed by the suction pad 114. The cathode side metal separator 11, the MEA 12, and the anode side metal separator 13 are conveyed to the laminating apparatus 120 by the suction pad 114 of the coating apparatus 110. The lower holding member 122 abuts on the outer peripheral edge portion of the cathode side metal separator 11 and the peripheral portion of the manifold hole 11b. That is, the lower holding member 122 is disposed so as to overlap the application region (seal line) of the adhesive 14 applied to the cathode side metal separator 11 and the MEA 12. The lower holding member 122 is made of rubber, resin, or the like having heat resistance and elasticity, and is formed in an annular shape in accordance with the application region of the adhesive 14 applied to the cathode side metal separator 11 and the MEA 12. The lower holding member 122 is joined to the upper surface 121 a of the lower clamping table 121. The lower holding member 122 contracts itself when the cathode side metal separator 11, the MEA 12, and the anode side metal separator 13 are held by the upper holding table 124 and the lower holding table 121. At that time, the lower holding member 122 presses the cathode side metal separator 11, the MEA 12, the outer peripheral part of the anode side metal separator 13 and the part around the manifold hole evenly.

  The lower regulating member 123 is a cathode-side metal separator that is stacked via the adhesive 14 when the cathode-side metal separator 11, the MEA 12, and the anode-side metal separator 13 are sandwiched between the lower clamping table 121 and the upper clamping table 124. 11, MEA 12, and anode-side metal separator 13 are restricted in thickness. The lower regulating member 123 is made of hard plastics or metal having heat resistance, and has a rectangular shape and an annular shape. The thickness of the lower regulating member 123 is half of the thickness (design thickness) of the cathode side metal separator 11, the MEA 12, and the anode side metal separator 13 laminated via the adhesive 14. The lower regulating member 123 is joined to the upper surface 121 a of the lower clamping table 121 and to the outside of the lower holding member 122. The lower regulating member 123 does not interfere with the cathode side metal separator 11.

  The upper clamping table 124 holds the cathode side metal separator 11, the MEA 12 and the anode side metal separator 13 together with the lower clamping table 121. The upper clamping table 124 has the same configuration as the lower clamping table 121, but does not include a vent hole. Screw holes 124 a made up of through holes are provided at the four corners of the upper clamping table 124. The screw hole 124 a is inserted through the bolt 127. The upper clamping table 124 approaches and separates from the lower clamping table 121 by a drive mechanism including a linear motion stage and a hydraulic cylinder. The operator may handle the operation of the upper clamping table 124 without using a drive mechanism.

  The upper holding member 125 has substantially the same configuration as the lower holding member 122. However, the upper holding member 125 includes a cutout portion 125a in which a portion of the region facing the active area 11a is cut out from a portion facing the periphery of the manifold hole 11b through which the cooling water of the cathode side metal separator 11 flows. ing. Due to the notch 125a, as in the flow path K3 shown in FIG. 3, the other manifold hole 13b (right side in the figure) passes through the active area 13a from one manifold hole 13b (left side in the figure) of the anode side metal separator 13. The air which dries the adhesive agent 14 can be circulated toward this. The upper holding member 125 is joined to the lower part of the upper clamping table 124. The upper holding member 125 contacts the outer peripheral edge portion of the anode-side metal separator 13 and the peripheral portion of the manifold hole 13b.

  The upper restriction member 126 has the same configuration as the lower restriction member 123. The upper regulating member 126 is joined to the lower part of the upper holding table 124 and to the outside of the upper holding member 125. The upper regulating member 126 does not interfere with the anode side metal separator 13.

  The bolt 127 is inserted into the screw hole 124 a of the upper holding table 124 and screwed into the screw groove 121 b of the lower holding table 121. The upper clamping table 124 and the lower clamping table 121 are fixed by bolts 127. The bolt 127 is screwed into the screw groove 121b of the lower clamping table 121 and removed from the screw groove 121b of the lower clamping table 121 by a fastening machine. The operation of the bolt 127 may be handled by an operator without using a fastening machine.

  The controller 128 includes a ROM, a CPU, and a RAM. A ROM (Read Only Memory) stores a control program related to the upper clamping table 124 and the bolt 127. A CPU (Central Processing Unit) controls the upper clamping table 124 and the bolt 127 based on a control program stored in the ROM. A RAM (Random Access Memory) temporarily stores data related to the upper clamping table 124 under control.

  In the laminating apparatus 120, the suction pad 114 of the coating apparatus 110 is used for transporting the cathode side metal separator 11, the MEA 12, and the anode side metal separator 13. In particular, the suction pad 114 directly carries the cathode-side metal separator 11 coated with the adhesive 14 from the coating device 110 to the stacking device 120. Similarly, the suction pad 114 carries the MEA 12 coated with the adhesive 14 directly from the coating device 110 and then directly into the stacking device 120.

  The operation of the stacking apparatus 120 will be described with reference to FIGS.

  FIG. 8A is a perspective view continuously showing a state in which the cathode-side metal separator 11, the MEA 12, and the anode-side metal separator 13 are clamped by the lower clamping table 121 and the upper clamping table 124. FIG. 8B is a perspective view showing a state where the cathode-side metal separator 11, the MEA 12, and the anode-side metal separator 13 are clamped by the lower clamping table 121 and the upper clamping table 124. FIG. 9 is a flowchart showing the stacking step S220 of each member using the stacking apparatus 120.

  8A, the suction pad 114 of the coating apparatus 110 carries the cathode-side metal separator 11 coated with the adhesive 14 into the laminating apparatus 120. The suction pad 114 places the cathode side metal separator 11 on the lower holding member 122 joined to the lower clamping table 121 (S221). Next, the suction pad 114 carries the MEA 12 coated with the adhesive 14 from the coating device 110 into the stacking device 120 and stacks it on the cathode-side metal separator 11 coated with the adhesive 14 (S222). Next, the suction pad 114 carries the anode-side metal separator 13 to which the adhesive 14 has not been applied into the laminating apparatus 120 and laminates it on the MEA 12 to which the adhesive 14 has been applied (S223).

  In FIG. 8A to FIG. 8B, the upper clamping table 124 descends toward the lower clamping table 121. The upper holding member 125 joined to the upper holding table 124 contacts the anode side metal separator 13 to which the adhesive 14 is not applied (S224). Further, the upper clamping table 124 descends toward the lower clamping table 121. The upper holding member 125 bonded to the upper holding table 124 and the lower holding member 122 bonded to the lower holding table 121 each shrink themselves. The upper holding member 125 and the lower holding member 122 press the cathode side metal separator 11, the MEA 12 and the anode side metal separator 13 at the outer peripheral edge and the part around the manifold hole evenly. The upper clamping table 124 stops descending when the upper regulating member 126 joined to the upper clamping table 124 contacts the lower regulating member 123 joined to the lower clamping table 121. The upper regulating member 126 and the lower regulating member 123 regulate the cathode-side metal separator 11, the MEA 12, and the anode-side metal separator 13 stacked via the adhesive 14 to a designed thickness.

  In FIG. 8B, the bolt 127 is inserted into the screw hole 124 a of the upper clamping table 124 and screwed into the screw groove 121 b of the lower clamping table 121. The upper clamping table 124 and the lower clamping table 121 are fixed by the bolt 127 (S225).

  Next, details of the drying device 130 constituting the assembling apparatus 100 will be described with reference to FIGS.

  The configuration of the drying device 130 will be described with reference to FIGS. 10 and 11.

  FIG. 10 is a perspective view schematically showing the drying device 130. FIG. 11 schematically shows a fluid flow path (hydrogen flow path K1, air flow path K2, or / and cooling water flow path K3) for drying the adhesive 14 flowing in the fuel cell stack 10. It is a perspective view shown in FIG.

  The drying device 130 supplies heated drying fluid (dry air: dry air) to the adhesive 14 of the fuel cell stack 10 at a first flow rate (low flow rate) so that the surface layer portion of the adhesive 14 reaches a certain level. dry. Further, the drying device 130 supplies dry air to the adhesive 14 at a second flow rate (high flow rate) higher than the first flow rate, and dries the entire adhesive 14 in a short time. The adhesive 14 is cured with drying.

  The oven 131 accommodates and heats the fuel cell stack 10 (the cathode-side metal separator 11 and the MEA 12 and the anode-side metal separator 13 stacked via the adhesive 14) sandwiched between the lower sandwiching table 121 and the upper sandwiching table 124. To do. The oven 131 is a so-called thermostat. The oven 131 heats the air in the tank by, for example, induction heating that can be rapidly heated to a predetermined temperature. The oven 131 heats the fuel cell stack 10 from the outside to cure the adhesive 14 while drying it. The oven 131 complements the bubbler 134 that heats the fuel cell stack 10 from the inside, and is not essential. The temperature sensor 131a is close to the adhesive 14 of the fuel cell stack 10 accommodated in the oven 131 and detects the temperature of the adhesive 14. The temperature sensor 131a is configured by a so-called thermocouple.

  After the piping 132 supplies the dry air supplied by the blower pump 133 and the heated water vapor supplied by the bubbler 134 to the flow paths (K1, K2, and K3) of the fuel cell stack 10 in the oven 131. , Discharged outside the oven 131. The joint 132a attaches and detaches the pipe 132 connected to the lower clamping table 121 and the pipe 132 arranged on the drying device 130 side.

  The blower pump 133 supplies a fluid (dry air) to the flow paths (K1, K2, and K3) of the fuel cell stack 10 in the oven 131. The blower pump 133 has a function of increasing or decreasing the flow rate of the dry air to be discharged. The blower pump 133 supplies one of the discharged dry air to the fuel cell stack 10 in the oven 131 through the dew point meter 135P through the pipe 132 branched into two. Further, the blower pump 133 supplies the other dry air discharged to the bubbler 134 through the pipe 132 branched into two. The piping 132 branched into two may be independently provided with a regulating valve for adjusting the flow rate. The blower pump 133 may have a heating function for heating air. For the heating mechanism, for example, induction heating is used. For example, if the dry air circulating in the factory is configured to be supplied from the pipe 132 on the upstream side of the drying device 130 toward the fuel cell stack 10, the blower pump 133 may not be used.

  The bubbler 134 supplies humidified air (water vapor) to the flow paths (K1, K2, and K3) of the fuel cell stack 10. The bubbler 134 is configured by a so-called humidifier. The bubbler 134 adjusts the water stored in the inside to a predetermined temperature by a temperature sensor while heating the water by a heater. The bubbler 134 supplies the water vapor evaporated by heating water to the fuel cell stack 10 via the dew point meter 135P. The bubbler 134 includes a water supply pipe for supplying water to the inside and a discharge pipe for discharging water from the inside.

  The dew point meters 135P and 135Q detect the dew point temperature of the fluid flowing through the pipe 132, and derive the humidity of the fluid from the dew point temperature. The dew point meter 135 </ b> P is disposed in the pipe 132 downstream of the blower pump 133 and the bubbler 134 and upstream of the fuel cell stack 10 in the oven 131. The dew point meter 135 </ b> Q is disposed in the pipe 132 on the downstream side of the fuel cell stack 10 in the oven 131. Information on the humidity of the fluid in the flow paths (K1, K2, and K3) of the fuel cell stack 10 in the oven 131 is obtained by the dew point meters 135P and 135Q.

  The valves 136S, 136T, and 136U control the flow of fluid in the pipe 132 by opening and closing the valves. The valves 136S, 136T, and 136U are so-called solenoid valves. The valve 136S is disposed in the pipe 132 between the bubbler 134 and the dew point meter 135P. The valve 136T is disposed in the pipe 132 which is the most downstream of the fluid flow paths (K1, K2, and K3) and downstream of the flow meter 137. The valve 136U is disposed in the pipe 132 on the downstream side of the gas detector 138.

  The flow meter 137 detects the flow rate of the fluid discharged from the fuel cell stack 10. The flow meter 137 is disposed in the pipe 132 downstream of the dew point meter 135Q and upstream of the valve 136T. The flow meter 137 obtains information on the flow rate of the fluid in the flow paths (K1, K2, and K3) of the fuel cell stack 10 in the oven 131.

  The gas detector 138 inspects the application state of the adhesive 14 that forms the edges of the flow paths (K 1, K 2, and K 3) of the fuel cell stack 10. The gas detector 138 is an example, and can be configured according to various specifications. The gas detector 138 detects a specific medium (for example, helium gas) from the inflowing fluid. The gas detector 138 is connected to a pipe 132 inserted through one side surface of the lower clamping table 121 in the longitudinal direction. The helium gas is supplied from the cylinder storing the helium gas to the flow paths (K1, K2, and K3) of the fuel cell stack 10 via the blower pump 133. Helium leaked from the flow path (K1, K2, and K3) to the outside of the fuel cell stack 10 is formed by the upper regulating member 126 joined to the upper clamping table 124 and the lower regulating member 123 joined to the lower clamping table 121. From the space thus formed, the gas flows into the gas detector 138 through the pipe 132. If the adhesive 14 is sufficiently applied and the edge of the flow path (K1, K2, or / and K3) is sufficiently formed by the adhesive 14, the gas detector 138 does not detect helium gas. On the other hand, when the application of the adhesive 14 is insufficient and an opening or the like is generated at the edge of the flow path (K1, K2, or / and K3) due to a partial omission of the adhesive 14, etc., the gas detector 138 detects helium gas. That is, it is possible to inspect for defects at the edges of the flow paths (K1, K2, and / or K3) while drying the adhesive 14. Therefore, the assembling apparatus 100 can ensure the quality related to the flow paths (K1, K2, and / or K3) of the fuel cell stack 10 without separately providing inspection time.

  The controller 139 includes a ROM, a CPU, and a RAM. A ROM (Read Only Memory) stores a control program related to the oven 131, the blower pump 133, the bubbler 134, and the valves 136S, 136T, and 136U. A ROM (Read Only Memory) also stores a control program for controlling each component based on the detection results of the dew point meters 135P and 135Q, the flow meter 137, and the gas detector 138. A CPU (Central Processing Unit) controls the oven 131, the blower pump 133, the bubbler 134, and the valves 136S, 136T, and 136U based on a control program stored in the ROM. A RAM (Random Access Memory) temporarily stores data relating to each component being controlled.

  The operation of the drying device 130 will be described with reference to FIGS. 12 and 13.

  FIG. 12 is a timing chart showing a state of curing of the adhesive 14 of the fuel cell stack 10. FIG. 13 is a flowchart showing a drying step S230 of the adhesive 14 using the drying device 130.

  The fuel cell stack 10 (the cathode side metal separator 11 and the MEA 12 and the anode side metal separator 13 stacked via the adhesive 14) sandwiched between the lower sandwiching base 121 and the upper sandwiching base 124 is carried into the oven 131. The pipes 132 connected to the lower clamping table 121 side are respectively coupled to the pipes 132 arranged on the drying device 130 side using the joint 132a (S231).

  The process from S231 to S238 is to swell the membrane electrode assembly of MEA 12 with water vapor. This step corresponds to a pretreatment step. In the step of protecting the electrolyte membrane, steam having a temperature of 30 ° C. and a humidity of 80% is mainly supplied into the fuel cell stack 10. When the electrolyte membrane is swollen with water vapor, pre-compression can be performed from the time when the surface pressure of the gas diffusion layer increases. As a result, the adhesion of the gas diffusion layer can be improved.

  The bubbler 134 is operated and the temperature of the water stored therein is adjusted to 30 ° C. (25 ° C. to 35 ° C.), for example. Water vapor is generated inside the bubbler 134. The oven is operated to adjust the temperature of the fuel cell stack 10 accommodated therein to 30 ° C. (25 ° C. to 35 ° C.), for example (S232).

  A valve 136 </ b> S provided downstream of the bubbler 134 and upstream of the fuel cell stack 10 is opened. The bubbler 134 can supply water vapor into the fuel cell stack 10 (S233).

  The blower pump 133 is operated. That is, water vapor heated to 30 ° C. is supplied through the bubbler 134 into the fuel cell stack 10 adjusted to 30 ° C. by the oven. Since the bubbler 134 continuously adjusts the temperature of the water stored therein to 30 ° C., the humidity of the water vapor supplied into the fuel cell stack 10 increases (S234).

  Whether or not the humidity of the water vapor in the fuel cell stack 10 has reached, for example, 80% (70% to 80%) is determined by the dew point meters 135P and 135Q. If not reached (No), the process returns to S234. If it has reached (Yes), the process proceeds to S236 (S235).

  The blower pump 133 and the bubbler 134 are stopped. However, the bubbler 134 may continue the temperature control of the water stored therein at 30 ° C. The valve 136T on the downstream side of the fuel cell stack 10 is shut off, and the water vapor supplied into the fuel cell stack 10 is retained in the fuel cell stack 10. That is, water vapor whose temperature is adjusted to 80% is retained in the fuel cell stack 10 whose temperature is adjusted to 30 ° C. by the oven 131 (S236).

  It is determined whether or not 30 minutes have elapsed since the blower pump 133 and the bubbler 134 were stopped and the valve 136T on the downstream side of the fuel cell stack 10 was shut off. The determination is made again every time (for example, 1 second), and if it has elapsed (Yes), the process proceeds to S238 (S237).

  The valve 136T on the downstream side of the fuel cell stack 10 is opened so that water vapor supplied into the fuel cell stack 10 can be discharged to the outside. That is, the fuel cell stack 10 is brought into a state where water vapor can be supplied (S238).

  In the steps from S239 to S241, the surface layer portion of the adhesive 14 is dried to a certain extent and temporarily cured. This step corresponds to the pre-curing step shown in FIG. 12, and the adhesive strength of the adhesive 14 is improved from 0% to 30%, and the pressure resistance (sealability) of the adhesive 14 is 0% to 100%. To improve. Further, 30% of the low-molecular siloxane contained in the adhesive 14 can be removed. In the step of temporarily curing the adhesive 14, steam at a first flow rate (5 mL / min) is mainly supplied to the adhesive 14 of the fuel cell stack 10. That is, the surface layer portion of the adhesive 14 is dried to a certain degree so that the position of the adhesive 14 does not shift. Here, the water vapor is used as a medium for dissolving the low-molecular siloxane volatilized from the adhesive 14 and discharging it from the flow paths (K1, K2, and K3) of the fuel cell stack 10. Other than water vapor, a solvent or gas that dissolves and discharges low-molecular-weight siloxane may be appropriately selected.

  In particular, in the temporary curing process of the adhesive 14 from S239 to S241, the flow path (K1,...) Formed by the adhesive 14 by supplying water vapor at a first flow rate (5 mL / min) that is a low flow rate. The pressure difference between the inside and the outside of the edge (seal line) of K2 or / and K3) is sufficiently suppressed. Therefore, the adhesive 14 forming the edge of the flow path (K1, K2, or / and K3) can be prevented from being displaced or partially lost.

  The blower pump 133 is operated to supply dry air to the bubbler 134. The bubbler 134 is operated to supply water vapor into the fuel cell stack 10. Here, by suppressing the output of the blower pump 133, the bubbler 134 supplies water vapor into the fuel cell stack 10 at a rate of 5 mL per minute. In this case, the water vapor flows through the fuel cell stack 10 so as to ventilate the fuel cell stack 10 at a pace of once per minute, for example (S239).

  The water stored in the bubbler 134 is heated and raised from 30 ° C. to 90 ° C. by 1 ° C. per minute. The water vapor supplied to the fuel cell stack 10 is heated from 30 ° C. to 90 ° C. At the same time, the temperature in the oven 131 is increased by 1 ° C. per minute from 30 ° C. to 90 ° C. The fuel cell stack 10 is heated from 30 ° C. to 90 ° C. In the adhesive 14 included in the fuel cell stack 10, the surface layer portion is more thermally cured than the inside (S240).

  Whether or not the temperature in the fuel cell stack 10 has reached 90 ° C. is determined by the temperature sensor 131a. If not reached (No), the process returns to S240, and if it has reached (Yes), the process returns to S242. Proceed (S241).

  The process from S242 to S247 is to fully cure the adhesive 14 as a whole. This step corresponds to the main curing step shown in FIG. 12, and the adhesive strength of the adhesive 14 is improved from 30% to 100%. Further, 100% of the low molecular weight siloxane contained in the adhesive 14 can be removed. In the main curing process of the adhesive 14, mainly, dry air having a second flow rate (500 mL / min) higher than the first flow rate (5 mL / min) is applied to the adhesive 14 of the fuel cell stack 10. Supply. That is, impurities that volatilize from the adhesive 14 are removed by the dry air while increasing the flow rate of the dry air so that the drying efficiency of the adhesive 14 is improved.

  The bubbler 134 is stopped. A valve 136S provided downstream of the bubbler 134 and upstream of the fuel cell stack 10 is shut off. The output of the blower pump 133 is increased and dry air is supplied into the fuel cell stack 10 at 500 mL per minute (S242).

  The temperature in the oven 131 is increased from 90 ° C. to 100 ° C. The fuel cell stack 10 is heated from 90 ° C. to 100 ° C. The adhesive 14 included in the fuel cell stack 10 is thermally cured as a whole (S243).

  Whether or not the temperature in the fuel cell stack 10 has reached 100 ° C. is determined by the temperature sensor 131a. If it has not reached (No), the process returns to S243, and if it has reached (Yes), the process returns to S245. Proceed (S244).

  It is determined whether or not 3 hours have passed since the temperature in the fuel cell stack 10 reached 100 ° C., and if it has not elapsed (No), it is determined again every certain time (for example, 1 second), If it has elapsed (Yes), the process proceeds to S246. During 3 hours, the adhesive 14 included in the fuel cell stack 10 is uniformly cured by heat from the inside to the surface portion (S245).

  The blower pump 133 is stopped, and the supply of dry air to the fuel cell stack 10 is stopped. The oven 131 is stopped and the heating of the fuel cell stack 10 is stopped. The interior of the oven 131 is brought to room temperature, and the fuel cell stack 10 is sufficiently cooled (S246).

  The joint 132a is removed from the pipe 132 connected to the lower clamping table 121 side, and the connection with the pipe 132 arranged on the drying device 130 side is released. The fuel cell stack 10 is unloaded from the oven 131 (S247).

  According to embodiment mentioned above, there exists an effect by the following structures.

  The assembly apparatus 100 of the fuel cell stack 10 sandwiches a membrane electrode assembly (MEA 12) between a pair of separators (cathode side metal separator 11 and anode side metal separator 13). The assembly apparatus 100 of the fuel cell stack 10 includes a storage unit, a coating unit, a setting unit, a temporary fixing unit, a curing unit, a removing unit, and a control unit. The storage unit stores one separator (cathode side metal separator 11 or anode side metal separator 13) in a predetermined position. The application unit applies an adhesive member (adhesive 14) to one separator (for example, the cathode-side metal separator 11) stored in the storage unit. The setting unit sets the MEA 12 or another separator (for example, the anode side metal separator 13). The temporary fixing portion temporarily fixes the MEA 12 or another separator (for example, the anode-side metal separator 13) and the one separator (for example, the cathode-side metal separator 11) accommodated by the adhesive 14. The curing unit cures the adhesive 14 to form a seal line on the separator (cathode side metal separator 11 or anode side metal separator 13). The removal unit removes impurities from the adhesive 14. The control unit controls the storage unit, the application unit, the setting unit, the temporary fixing unit, the curing unit, and the removal unit.

  In the assembly method of the fuel cell stack 10, the MEA 12 is sandwiched between a pair of separators (the cathode side metal separator 11 and the anode side metal separator 13). In the assembly method of the fuel cell stack 10, one separator (for example, the cathode-side metal separator 11) housed in a predetermined position of the housing portion and the MEA 12 or another separator (for example, the anode-side metal separator 13) are combined into one separator ( For example, the adhesive 14 applied to the cathode side metal separator 11) is temporarily fixed and then cured to form a seal line on the separator (cathode side metal separator 11 or anode side metal separator 13), and impurities are removed from the adhesive 14 To do.

  According to the assembling apparatus 100 and the assembling method of the fuel cell stack 10 having such a configuration, impurities are removed from the adhesive 14 in a state where a seal line is formed and the adherend members are temporarily fixed. Therefore, the assembling apparatus 100 and the drying method of the fuel cell stack 10 can cure the adhesive 14 while preventing the positional deviation or loss of the adhesive 14 and suppress the influence of the impurities contained in the adhesive 14 on the MEA 12. it can.

  Further, the temporary fixing portion supplies a temporary fixing fluid (dry air) to the adhesive 14.

  According to the assembling apparatus 100 having such a configuration, the adhesive 14 can be temporarily cured by a very simple and highly versatile method.

  Furthermore, the curing unit supplies dry air for curing to the adhesive 14.

  According to the assembly apparatus 100 having such a configuration, the adhesive 14 can be fully cured by a very simple and highly versatile method.

  Further, the control unit controls the flow rate of the dry air supplied by the temporary fixing unit to be smaller than the flow rate of the dry air supplied by the curing unit.

  According to the assembling apparatus 100 having such a configuration, the drying efficiency of the adhesive 14 exceeding the initial drying stage is controlled after the flow rate of the drying air is suppressed in the temporary fixing portion so that the position of the initial adhesive 14 does not shift. As a result, the flow rate of dry air can be increased in the curing section.

  Further, the temporary fixing part causes dry air to contain water vapor.

  According to the assembling apparatus 100 having such a configuration, the impurities of the adhesive 14 can be dissolved in water vapor and removed. That is, the influence on the MEA 12 by the impurities of the adhesive 14 can be sufficiently suppressed. Therefore, the assembling apparatus 100 can maintain the quality (power generation performance) of the fuel cell stack 10 when assembling the fuel cell stack 10.

  Further, the pair of separators (cathode side metal separator 11 and anode side metal separator 13) are made of metal, and at least one of the temporary fixing portion and the curing portion is a pair of separators (cathode side metal separator 11 and anode side metal). The separator 13) is heated by induction heating.

  According to the assembling apparatus 100 having such a configuration, the pair of separators (cathode side metal separator 11 and anode side metal separator 13) can be rapidly heated to a predetermined temperature. That is, the adhesive 14 can be dried in a short time. Therefore, the assembling apparatus 100 can further reduce the time required for assembling the fuel cell stack 10.

  Furthermore, at least one of the temporary fixing portion and the hardening portion heats the fuel cell stack 10 from the outside.

  According to the assembling apparatus 100 having such a configuration, the adhesive 14 can be heated via the MEA 12, the cathode-side metal separator 11, and the like, and the drying of the adhesive 14 can be further promoted. Therefore, the assembling apparatus 100 can further reduce the time required for assembling the fuel cell stack 10.

  Furthermore, the coating unit (coating device 110) is configured to flow a channel (hydrogen channel K1, K2 for the gas, hydrogen corresponding to the fuel gas, air corresponding to the oxidizing gas, and cooling water) in the fuel cell stack 10. The adhesive 14 is applied to one separator (for example, the cathode-side metal separator 11) so as to form an edge of the air flow path K2 and / or the cooling water flow path K3). The temporary fixing part and the curing part supply dry air along the flow path (hydrogen flow path K1, air flow path K2, or / and cooling water flow path K3).

  According to the assembling apparatus 100 having such a configuration, dry air can be supplied along the adhesive 14 that forms the edge of the flow path (K1, K2, or / and K3). That is, impurities that volatilize from the adhesive 14 can be quickly removed with dry air while the adhesive 14 is dried very efficiently. Therefore, the assembling apparatus 100 can suppress poisoning of the MEA 12 due to impurities while reducing the time required for assembling the fuel cell stack 10.

  In particular, according to the assembling apparatus 100 having such a configuration, when the surface layer portion of the adhesive 14 forming the edge of the flow path (K1, K2, or / and K3) is dried to a certain level, the low flow rate drying is performed. By supplying air, the differential pressure between the inside and the outside of the edge (seal line) of the flow path (K1, K2, or / and K3) can be sufficiently suppressed. Therefore, the adhesive 14 forming the edge of the flow path (K1, K2, or / and K3) can be prevented from being displaced or partially lost.

  Further, the temporary fixing portion is cured while drying a portion facing the outside of the adhesive 14 relative to the inner portion.

  According to the assembling apparatus 100 having such a configuration, the entire adhesive 14 can be cured after the surface layer portion of the adhesive 14 is dried to a certain degree so that the position of the adhesive 14 does not shift.

  Further, the adhesive 14 includes low molecular siloxane as an impurity.

  According to the assembling apparatus 100 having such a configuration, low molecular siloxane can be prevented from staying in the MEA 12 platinum and poisoning. Therefore, the assembling apparatus 100 can maintain the quality (power generation performance) of the fuel cell stack 10.

  In addition, the present invention can be variously modified based on the configurations described in the claims, and these are also within the scope of the present invention.

10 Fuel cell stack,
11 Cathode side metal separator (one separator),
12 MEA (membrane electrode assembly),
13 Anode-side metal separator (other separator),
11a, 12a, 13a active area,
11b, 12b, 13b Manifold holes,
14 Adhesive (adhesive member),
100 assembly equipment,
110 coating device,
111 suction stand,
111a adsorption surface,
111b suction hole,
112 piping,
113 pump,
114 suction pads,
114a Pat,
114b suction surface,
114c suction hole,
114d strut,
115 dispensers,
116 controller,
120 laminating equipment,
121 Lower clamping table,
121a top surface,
121b thread groove,
121c1, 121bc vent holes,
121d detection hole,
122 Lower holding member,
123 Lower regulating member,
124 Upper clamping table,
124a screw hole,
125 upper holding member,
125a notch,
126 upper regulating member,
127 volts,
128 controller,
130 drying equipment,
131 oven,
131a temperature sensor,
132 piping,
132a fitting,
133 blower pump,
134 Bubbler,
135P, 135Q dew point meter,
136S, 136T, 136U valves,
137 flow meter,
138 gas detector,
139 controller,
A Dry air (fluid),
K1 flow path (flow path for hydrogen),
K2 flow path (flow path for air),
K3 flow path (flow path for cooling water),
S200 assembly process,
S210 coating process,
S220 Lamination process,
S230 Drying step.

Claims (11)

An assembly device for a fuel cell stack that sandwiches a membrane electrode assembly between a pair of separators,
A storage portion for storing the one separator in a predetermined position;
An application unit that applies an adhesive member to one separator stored in the storage unit;
A setting unit for setting the membrane electrode assembly or other separator;
A temporary fixing part for temporarily fixing the membrane electrode assembly or the other separator and the one stored separator by the adhesive member;
A curing portion that cures the adhesive member to form a seal line on the separator;
A removal section for removing impurities from the adhesive member;
A fuel cell stack assembly apparatus comprising: a control unit that controls the storage unit, the application unit, the setting unit, the temporary fixing unit, the curing unit, and the removal unit.   The fuel cell stack assembly apparatus according to claim 1, wherein the temporary fixing portion supplies a temporary fixing fluid to the adhesive member.   The fuel cell stack assembly apparatus according to claim 1, wherein the curing unit supplies a curing fluid to the adhesive member.   The fuel cell stack assembly apparatus according to claim 3, wherein the control unit controls the flow rate of the fluid supplied by the temporary fixing unit to be smaller than the flow rate of the fluid supplied by the curing unit.   The fuel cell stack assembly apparatus according to any one of claims 2 to 4, wherein the temporary fixing portion causes the fluid to contain water vapor. The pair of separators is made of metal,
6. The fuel cell stack assembly apparatus according to claim 1, wherein at least one of the temporary fixing portion and the curing portion heats the pair of separators by induction heating. 7.   The fuel cell stack assembly apparatus according to claim 1, wherein at least one of the temporary fixing portion and the curing portion heats the fuel cell stack from the outside. The application unit applies the adhesive member to the one separator so as to form an edge of a flow path through which the medium flows in the fuel cell stack.
The fuel cell stack assembly apparatus according to claim 2, wherein the temporary fixing portion and the curing portion supply the fluid along the flow path.   The fuel cell stack assembly apparatus according to any one of claims 1 to 8, wherein the temporary fixing portion is cured while drying a portion of the adhesive member that faces the outside relatively to an inner portion.   The fuel cell stack assembly apparatus according to claim 1, wherein the adhesive member includes low-molecular siloxane as an impurity. A fuel cell stack assembly method for sandwiching a membrane electrode assembly between a pair of separators,
One separator stored in a predetermined position of the storage unit and the membrane electrode assembly or the other separator are temporarily fixed by an adhesive member applied to the one separator, and then cured and sealed to the separator. And assembling the fuel cell stack by removing impurities from the adhesive member.