JP2019145219A - Manufacturing method of master cell - Google Patents

Abstract

To provide a manufacturing method of master cell capable of reducing production cost, when manufacturing multiple master cells having different reference value of pressure loss.SOLUTION: In a manufacturing method of master cell 10 for use in inspection of pressure loss measurement equipment for measuring pressure loss of fuel battery single cell, between a separator 11 having a duct 11a and a separator 12 having a duct 12a, metallic members 13a, 13b having the same thickness as that of a membrane electrode gas diffusion layer assembly, constituting the fuel battery single cell, are sandwiched, and between the separator 11 and the metallic member 13a, and between the separator 12 and the metallic member 13b, thermoplastic sheets 14 are sandwiched, respectively, and the number of the thermoplastic sheets 14 is adjusted according to the value of pressure loss required for the master cell 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a method of manufacturing a master cell used for inspection of a pressure loss measuring device that measures the pressure loss of a single fuel cell.

  As this type of pressure loss measuring device, a jig is disposed opposite to a fuel cell single cell integrated with a metal member made of titanium or the like sandwiched between a pair of metal plates and each metal plate. What measures the pressure loss of a single cell is indicated (refer to patent documents 1).

JP 2010-129191 A

  The pressure loss of the fuel cell single cell measured by the pressure loss measuring device described in Patent Document 1 is directly connected to the performance of the fuel cell single cell, and the fuel cell single cell is normally measured by the pressure loss measuring device. It is necessary to check whether or not. As a method of inspecting the pressure loss measuring device, the master cell set to a value that serves as a reference for the pressure loss of the single fuel cell is measured by the pressure loss measuring device, and the pressure loss measured by the pressure loss measuring device is There is a method for inspecting whether or not the pressure loss measuring device is measuring normally based on whether or not it matches the reference value of the master cell. In general, in order to grasp the individual differences of each pressure loss measuring device for multiple pressure loss measuring devices, the reference value of the pressure loss of the master cell and the measurement data obtained by measuring this master cell with each pressure loss measuring device A calibration curve is created that graphs the relationship between and. In each pressure loss measuring instrument, measurement data is acquired based on this calibration curve. Therefore, it is necessary to prepare a master cell for each of a plurality of pressure loss measuring devices.

  However, in order to manufacture a plurality of master cells so that different pressure loss reference values can be obtained, if different individual members are manufactured by a machine tool equipped with a mold or the like, different molds are produced. There is a problem that production costs increase, such as being necessary.

  The present invention has been made to solve such a problem, and a manufacturing method of a master cell that can reduce production cost when manufacturing a plurality of master cells having different reference values of pressure loss. The issue is to provide.

  A manufacturing method of a master cell according to the present invention is a manufacturing method of a master cell used for inspection of a pressure loss measuring device that measures the pressure loss of a single fuel cell, and is between two separators having a flow path. In addition, a metal member having the same thickness as the membrane electrode gas diffusion layer assembly constituting the fuel cell single cell is sandwiched, and a thermoplastic sheet is sandwiched between the separator and the metal member, which is required for the master cell. The number of thermoplastic sheets is adjusted according to the pressure loss value.

  The master cell manufacturing method according to the present invention sandwiches a metal member between two separators, sandwiches a thermoplastic sheet between the separator and the metal member, and heats depending on the pressure loss value of the master cell. The master cell is manufactured by adjusting the number of plastic sheets. With this configuration, there is no need to manufacture different and different members with a machine tool equipped with a mold or the like, and even with a master cell having different pressure loss values, just adjusting the number of thermoplastic sheets, Manufactured with the same material.

  ADVANTAGE OF THE INVENTION According to this invention, when manufacturing the several master cell which has the reference value of different pressure loss, the manufacturing method of the master cell which can reduce production cost can be provided.

It is a figure of the master cell manufactured by the manufacturing method of the master cell which concerns on embodiment of this invention, FIG.1 (a) shows the top view of a master cell, FIG.1 (b) shows FIG.1 (a). Sectional drawing of the master cell cut | disconnected by AA of FIG. 1 is shown, FIG.1 (c) shows sectional drawing of the master cell cut | disconnected by BB of Fig.1 (a). It is a figure of the master cell manufactured by the manufacturing method of the master cell which concerns on Example 1 of embodiment of this invention, Fig.2 (a) shows the top view of a master cell, FIG.2 (b) is a figure. 2A shows a cross-sectional view of the master cell cut along CC in FIG. 2A, and FIG. 2C shows a cross-sectional view of the master cell cut along DD in FIG. It is a figure of the master cell manufactured by the manufacturing method of the master cell which concerns on Example 2 of embodiment of this invention, Fig.3 (a) shows the top view of a master cell, FIG.3 (b) is a figure. 3A is a cross-sectional view of the master cell cut along EE in FIG. 3A, and FIG. 3C is a cross-sectional view of the master cell cut along FF in FIG. It is a figure of the master cell manufactured by the manufacturing method of the master cell which concerns on Example 3 of embodiment of this invention, Fig.4 (a) shows the top view of a master cell, FIG.4 (b) is a figure. 4A is a cross-sectional view of the master cell cut along GG in FIG. 4A, and FIG. 4C is a cross-sectional view of the master cell cut along H-H in FIG. The schematic diagram of the inspection equipment of the fuel cell single cell in which the master cell concerning the embodiment of the present invention is used.

  The manufacturing method of the master cell 10 which concerns on embodiment to which the manufacturing method of the master cell which concerns on this invention is applied is demonstrated with reference to drawings. First, the configuration of the master cell 10 according to the embodiment will be described.

  As shown in FIGS. 1 (a), 1 (b), and 1 (c), the master cell 10 includes one separator 11, the other separator 12, a metal member 13, a thermoplastic sheet 14, and a gasket. 15 and an adhesive sheet 16. The master cell 10 has the same shape and thickness as the fuel cell single cell, and can be set in the production facility of the fuel cell single cell in the same manner as the fuel cell single cell. It is comprised so that it can convey similarly.

  The separator 11 is formed in the same manner as the separator constituting the fuel battery cell. The separator 11 is formed, for example, in the same manner as the anode-side separator joined to the anode-side gas diffusion layer that constitutes the membrane electrode gas diffusion layer assembly of a single fuel cell, and extends along the surface of the anode-side gas diffusion layer. Thus, a flow path 11a similar to the fuel gas flow path for flowing hydrogen as fuel gas is formed. Also, six openings 11b to which a manifold (not shown) is connected are formed.

  The separator 12 is formed in the same manner as the separator constituting the fuel battery cell. The separator 12 is formed, for example, in the same manner as the cathode-side separator joined to the cathode-side gas diffusion layer constituting the membrane electrode gas diffusion layer assembly of a single fuel cell, and extends along the surface of the cathode-side gas diffusion layer. Thus, a flow path 12a similar to the oxidant gas flow path for flowing air as the oxidant gas is formed. Further, six openings 12b to which a manifold (not shown) is connected are formed.

The metal member 13 is sandwiched between the separator 11 and the separator 12, and has the same thickness as the membrane electrode gas diffusion layer assembly constituting the single fuel cell. In addition, the same here is not limited to the exact same thickness, The same thickness which is settled in a predetermined error range is also included. The metal member 13 is made of plate-like titanium (Ti), and includes a metal member 13a on the separator 11 side and a metal member 13b on the separator 12 side. The metal member 13a and the metal member 13b have a tensile strength of about 520 N / mm ² . The membrane electrode gas diffusion layer assembly is composed of a membrane electrode assembly, an anode side gas diffusion layer, and a cathode side gas diffusion layer. The membrane electrode assembly is composed of an electrolyte membrane, an anode catalyst layer, and a cathode catalyst layer. It is composed of a joined body.

The thermoplastic sheet 14 is made of a synthetic resin having thermoplasticity, and has at least one predetermined thickness (mm) sandwiched between the separator 11 and the metal member 13a and between the separator 12 and the metal member 13b. It consists of a sheet. A part of the thermoplastic sheet 14 enters the flow path 11a of the separator 11 and the flow path 12a of the separator 12, whereby the size of the cross-sectional areas (mm ² ) of the flow path 11a and the flow path 12a is adjusted. The pressure loss (Pa) value of the master cell 10 is adjusted.

  For example, when the number of the thermoplastic sheets 14 having a predetermined thickness (mm) is increased, the amount of the thermoplastic sheet 14 entering the flow path 11a of the separator 11 and the flow path 12a of the separator 12 is increased. The cross-sectional areas of the flow path 11a and the flow path 12a of the separator 12 are relatively small. As a result, the value of the pressure loss (Pa) of the fluid flowing through the flow path 11a of the separator 11 and the flow path 12a of the separator 12 increases.

  On the contrary, when the number of the thermoplastic sheets 14 is decreased, the amount of the thermoplastic sheet 14 entering the flow path 11a of the separator 11 and the flow path 12a of the separator 12 is decreased, and the flow path 11a of the separator 11 and The cross-sectional area of the flow path 12a of the separator 12 is relatively large. As a result, the value of the pressure loss (Pa) of the fluid flowing through the flow path 11a of the separator 11 and the flow path 12a of the separator 12 becomes small.

  Therefore, the value of the pressure loss can be increased or decreased by increasing or decreasing the number of the thermoplastic sheets 14 attached. The predetermined thickness of the thermoplastic sheet 14 is appropriately selected based on data such as setting specifications such as the size, structure, and material of the master cell 10 and experimental values.

  The gasket 15 is made of an elastic material such as rubber or a thermoplastic elastomer, and is attached to the exposed surface of the separator 11. Gasket 15 adheres between two adjacent separators when stacking fuel cell single cells to form a stack of fuel cell single cells, preventing leakage of reaction gas and cooling medium to the outside. It has a function to do.

  The adhesive sheet 16 is composed of a sheet that adheres the separator 11 and the separator 12, and is made of an adhesive sheet having high adhesiveness and sealing properties. The adhesive sheet 16 is formed of, for example, a thermoplastic resin or a thermosetting resin that is a polyester resin or a modified olefin resin having adhesiveness. The adhesive sheet 16 is configured to be bonded to the metal members 13a and 13b with a UV (ultraviolet) curable adhesive equivalent to the adhesive used for manufacturing the fuel cell.

  Next, a method for manufacturing the master cell 10 according to the embodiment will be described with reference to the drawings.

  First, the separator 11, the separator 12, the metal member 13a, the metal member 13b, the thermoplastic sheet 14, the gasket 15, and the adhesive sheet 16 that are separately manufactured and stored in a predetermined position, which are components of the master cell 10. Prepare for removal. Preparations for assembling predetermined equipment, an assembling tool, a jig and the like for manufacturing the master cell 10 are made.

  Next, each necessary component is taken out, and the metal member 13b and the adhesive sheet 16 are bonded to each other with a UV (ultraviolet) curable adhesive using predetermined equipment, assembly tools, jigs, and the like. Subsequently, as shown in FIG. 1 (c), the separator 12, the required number of thermoplastic sheets 14, the bonded metal member 13b and the adhesive sheet 16, the required number of sheets in order from the lower side to the upper side of the sheet. The thermoplastic sheet 14 and the separator 11 are stacked.

  Next, the stacked components are thermocompression bonded. During this thermocompression bonding, the required number of thermoplastic sheets 14 adjacent to the separator 12 and the required number of thermoplastic sheets 14 adjacent to the separator 11 are melted, respectively, in the flow path 12a of the separator 12 and A part of the thermoplastic sheet 14 enters the flow path 11a of the separator 11.

  Next, as shown in FIG. 1C, a gasket 15 is attached to a predetermined position on the surface of the separator 11 in each thermocompression-bonded component. It should be noted that the gasket 15 may be included in each component and thermocompression bonded at the same time when the stacked components are thermocompression bonded.

  In the manufacturing method of the master cell 10 according to the present embodiment, the necessary value of the pressure loss of the master cell 10 can be obtained by appropriately selecting the required number of the thermoplastic sheets 14. Therefore, in the master cell 10 according to the present embodiment, a plurality of master cells 10 having an appropriate value of pressure loss are manufactured by adjusting the number of the thermoplastic sheets 14.

  Specifically, when the thickness at which the thermoplastic sheet 14 melts and penetrates into the flow path 11a and the flow path 12a is about 35 μm, the pressure loss is 1 as compared with the case where the thermoplastic sheet 14 does not penetrate. When the penetration thickness increases by about 25 times and the penetration thickness is about 75 μm, the pressure loss increases by about 2.25 times compared to the case where the thermoplastic sheet 14 does not penetrate. Since the thermoplastic sheet 14 can be produced with a thickness unit of about 10 μm, the number of sheets used can be appropriately selected according to a desired pressure loss.

  Further, the number of thermoplastic sheets 14 used is changed to 1.5 times the pressure loss by using one sheet and about 2.5 times by using two sheets, compared to the sheet not using the thermoplastic sheet 14. Can do. Since the actual fuel cell pressure loss also changes within this range of magnification, a master cell having a pressure loss value close to that of the actual fuel cell can be manufactured.

  The master cell 10 uses a metal member 13 made of plate-like titanium (Ti) having the same shape as the membrane electrode gas diffusion layer assembly instead of the membrane electrode gas diffusion layer assembly constituting the fuel cell. doing. As a result, in the membrane electrode gas diffusion layer assembly constituting the fuel cell actually manufactured, the change in pressure loss was caused by the change in the deflection of the membrane electrode gas diffusion layer assembly. Since the metal member 13 is not deformed, the pressure loss does not change and a stable pressure loss value is maintained.

  In the manufacturing method of the master cell 10 according to the embodiment, the metal member 13a on the separator 11 side, in which the master cell 10 is made of plate-like titanium (Ti) having the same shape as the membrane electrode gas diffusion layer assembly, and the separator The structure which substitutes with the metal member 13 which has the 12-side metal member 13b was demonstrated.

  However, in the manufacturing method of the master cell which concerns on this invention, you may make it comprise with different members other than the metal member 13 which consists of titanium (Ti) which has the same shape as a membrane electrode gas diffusion layer assembly. Hereinafter, Example 1, Example 2, and Example 3 comprised by different members other than the metal member 13 which consists of titanium (Ti) are demonstrated with reference to drawings.

<Example 1>
The master cell 10A according to Example 1 is configured in the same manner as the master cell 10 according to the embodiment, except that a metal member 13 made of titanium (Ti) is configured by the member 13A.

  Specifically, the master cell 10A according to the first embodiment is implemented except that the metal member 13 is composed of a member 13A as shown in FIGS. 2 (a), 2 (b), and 2 (c). It is comprised similarly to the master cell 10 which concerns on a form. In addition, the same structure as the master cell 10 which concerns on embodiment uses the same code | symbol, and abbreviate | omits detailed description.

The member 13A has the same thickness as the membrane electrode gas diffusion layer assembly constituting the fuel cell single cell. The metal member 13Aa on the separator 11 side, the metal member 13Ab on the separator 12 side, and the metal member 13Aa And a PET sheet 13Ac incorporated between the metal members 1Ab. The metal member 13Aa and the metal member 13Ab are formed of plate-like titanium (Ti) having a shape different from that of the metal member 13a and the metal member 13b according to the embodiment, and have a tensile strength of about 520 N / mm ^2. Yes.

  The PET sheet 13Ac is made of a polyethylene terephthalate (PET) plate having thermoplasticity, has a Young's modulus of about 2.8 GPa, is relatively resistant to heat, and has impact resistance. In addition, member 13A which concerns on Example 1 comprises the metal member in the manufacturing method of the master cell which concerns on this invention.

  Next, the manufacturing method of the master cell 10A according to Example 1 will be described with reference to the drawings with respect to portions different from the master cell 10 according to the embodiment, and description of similar configurations will be omitted.

  First, preparations for assembling predetermined equipment, assembling tools, jigs, and the like for manufacturing each component including the member 13A of the master cell 10A are prepared. Next, as in the embodiment, as shown in FIG. 2C, the separator 12, the required number of thermoplastic sheets 14, the metal member 13Ab, and PET, in order from the lower side to the upper side of the sheet, with predetermined equipment and the like. The sheet 13Ac, the metal member 13Aa, the required number of thermoplastic sheets 14, and the separator 11 are stacked.

  Next, the stacked components are thermocompression bonded. During this thermocompression bonding, as in the embodiment, the required number of thermoplastic sheets 14 adjacent to the separator 12 and the required number of thermoplastic sheets 14 adjacent to the separator 11 are melted, A part of the thermoplastic sheet 14 enters the flow path 12 a and the flow path 11 a of the separator 11.

  Next, as in the embodiment, the gasket 15 is attached to a predetermined position on the surface of the separator 11 in each thermocompression-bonded component. The gasket 15 may be included in each component and thermocompression bonded at the same time when the stacked components are thermocompression bonded.

  Also in the manufacturing method of the master cell 10A according to the first embodiment, the necessary value of the pressure loss of the master cell 10A can be obtained by appropriately selecting the necessary number of the thermoplastic sheets 14. Therefore, in the master cell 10A according to the first embodiment, by adjusting the number of the thermoplastic sheets 14, a plurality of master cells 10A having an appropriate value of pressure loss are manufactured.

  In addition, the master cell 10A includes metal members 13Aa and 13Ab made of plate-like titanium (Ti) having the same shape as the membrane electrode gas diffusion layer assembly instead of the membrane electrode gas diffusion layer assembly constituting the fuel cell. And a member 13A composed of the PET sheet 13Ac.

  As a result, in the membrane electrode gas diffusion layer assembly constituting the fuel cell actually manufactured, the change in pressure loss was caused by the change in the deflection of the membrane electrode gas diffusion layer assembly. Since the member 13A is not deformed, the pressure loss does not change, and a stable pressure loss value is maintained. Further, since the PET cell 13Ac is sandwiched between the metal members 13Aa and 13Ab, the master cell 10A can also be used as a master cell of a measuring instrument that measures a short circuit and a withstand voltage of a single fuel cell.

<Example 2>
The master cell 10B according to Example 2 is configured in the same manner as the master cell 10 according to the embodiment, except that a metal member 13 made of titanium (Ti) is configured by the member 13B.

  Specifically, the master cell 10B according to the second embodiment is implemented except that the metal member 13 is composed of a member 13B as shown in FIGS. 3 (a), 3 (b), and 3 (c). It is comprised similarly to the master cell 10 which concerns on a form. In addition, the same structure as the master cell 10 which concerns on embodiment uses the same code | symbol, and abbreviate | omits detailed description.

  The member 13B has the same thickness as the membrane electrode gas diffusion layer assembly constituting the fuel cell single cell. The metal member 13Ba on the separator 11 side, the metal member 13Bb on the separator 12 side, and the metal member 13Ba And a PET sheet 13Bc incorporated between the metal member 13Bb.

The metal member 13Ba and the metal member 13Bb are formed of plate-like stainless steel (SUS) and have a tensile strength of about 520 N / mm ² . The PET sheet 13Bc is formed in the same manner as the PET sheet 13Ac of Example 1. In addition, the member 13B according to Example 2 constitutes a metal member in the method for manufacturing a master cell according to the present invention.

  Next, regarding the manufacturing method of the master cell 10B according to the second embodiment, portions different from the master cell 10 according to the embodiment will be described with reference to the drawings, and description of similar configurations will be omitted.

  First, preparations for assembling predetermined equipment, assembly tools, jigs, and the like for manufacturing each component including the member 13B of the master cell 10B are prepared. Next, as in the embodiment, as shown in FIG. 3C, the separator 12, the required number of thermoplastic sheets 14, the metal member 13Bb, PET, in order from the lower side to the upper side of the paper surface, as shown in FIG. The sheet 13Bc, the metal member 13Ba, the required number of thermoplastic sheets 14, and the separator 11 are stacked.

  Next, the stacked components are thermocompression bonded. During this thermocompression bonding, as in the embodiment, the required number of thermoplastic sheets 14 adjacent to the separator 12 and the required number of thermoplastic sheets 14 adjacent to the separator 11 are melted, A part of the thermoplastic sheet 14 enters the flow path 12 a and the flow path 11 a of the separator 11.

  Next, as in the embodiment, the gasket 15 is attached to a predetermined position on the surface of the separator 11 in each thermocompression-bonded component. The gasket 15 may be included in each component and thermocompression bonded at the same time when the stacked components are thermocompression bonded.

  Also in the manufacturing method of the master cell 10B according to the second embodiment, the necessary value of the pressure loss of the master cell 10B can be obtained by appropriately selecting the necessary number of the thermoplastic sheets 14. Therefore, in the master cell 10B according to the second embodiment, by adjusting the number of the thermoplastic sheets 14, a plurality of master cells 10B having an appropriate value of pressure loss are manufactured.

  The master cell 10B includes metal members 13Ba and 13Bb made of plate-like stainless steel (SUS) having the same shape as the membrane electrode gas diffusion layer assembly instead of the membrane electrode gas diffusion layer assembly constituting the fuel cell. And a member 13B composed of the PET sheet 13Bc.

  As a result, in the membrane electrode gas diffusion layer assembly constituting the fuel cell actually manufactured, the change in pressure loss was caused by the change in the deflection of the membrane electrode gas diffusion layer assembly. Since the member 13B is not deformed, the pressure loss does not change, and a stable pressure loss value is maintained. Moreover, since the PET sheet 13Bc is sandwiched between the metal members 13Ba and 13Bb, the master cell 10B can also be used as a master cell of a measuring instrument that measures a short circuit and a withstand voltage of a single fuel cell.

<Example 3>
The master cell 10C according to Example 3 is configured in the same manner as the master cell 10 according to the embodiment, except that a metal member 13 made of titanium (Ti) is configured by the member 13C.

  Specifically, the master cell 10C according to the third embodiment is implemented except that the metal member 13 is composed of a member 13C as shown in FIGS. 4 (a), 4 (b), and 4 (c). It is comprised similarly to the master cell 10 which concerns on a form. In addition, the same structure as the master cell 10 which concerns on embodiment uses the same code | symbol, and abbreviate | omits detailed description.

  The member 13C has the same thickness as the membrane electrode gas diffusion layer assembly constituting the fuel cell single cell. The metal member 13Ca on the separator 11 side, the metal member 13Cb on the separator 12 side, and the metal member 13Ca And a polystyrene sheet 13Cc incorporated between the metal member 13Cb.

The metal member 13Ca and the metal member 13Cb are made of plate-like stainless steel (SUS) and have a tensile strength of about 520 N / mm ² . The polystyrene sheet 13Cc has a Young's modulus of about 2.8 GPa, is made of a polystyrene (PS) plate having thermoplasticity, and has heat resistance. Note that the member 13C according to Example 3 constitutes a metal member in the method for manufacturing a master cell according to the present invention.

  Next, a method for manufacturing the master cell 10C according to Example 3 will be described with reference to the drawings with respect to portions different from the master cell 10 according to the embodiment, and description of similar configurations will be omitted.

  First, preparations for assembling predetermined equipment, assembly tools, jigs, and the like for manufacturing each component including the member 13C of the master cell 10C are made. Next, as in the embodiment, as shown in FIG. 4C, the separator 12, the required number of thermoplastic sheets 14, the metal member 13Cb, polystyrene, in order from the lower side to the upper side of the page, as shown in FIG. The sheet 13Cc, the metal member 13Ca, the required number of thermoplastic sheets 14, and the separator 11 are stacked.

  Next, the stacked components are thermocompression bonded. During this thermocompression bonding, as in the embodiment, the required number of thermoplastic sheets 14 adjacent to the separator 12 and the required number of thermoplastic sheets 14 adjacent to the separator 11 are melted, A part of the thermoplastic sheet 14 enters the flow path 12 a and the flow path 11 a of the separator 11.

  Next, as in the embodiment, the gasket 15 is attached to a predetermined position on the surface of the separator 11 in each thermocompression-bonded component. The gasket 15 may be included in each component and thermocompression bonded at the same time when the stacked components are thermocompression bonded.

  Also in the manufacturing method of the master cell 10C according to the third embodiment, the necessary value of the pressure loss of the master cell 10C can be obtained by appropriately selecting the required number of the thermoplastic sheets 14. Therefore, in the master cell 10C according to the third embodiment, by adjusting the number of the thermoplastic sheets 14, a plurality of master cells 10C having an appropriate value of pressure loss are manufactured.

  The master cell 10C is made of metal members 13Ca, 13Cb made of plate-like stainless steel (SUS) having the same shape as the membrane electrode gas diffusion layer assembly instead of the membrane electrode gas diffusion layer assembly constituting the fuel cell. And the member 13C comprised by the polystyrene sheet 13Cc is used.

  As a result, in the membrane electrode gas diffusion layer assembly constituting the fuel cell actually manufactured, the change in pressure loss was caused by the change in the deflection of the membrane electrode gas diffusion layer assembly. Since the member 13C is not deformed, the pressure loss does not change, and a stable pressure loss value is maintained. Further, since the polystyrene sheet 13Cc is sandwiched between the metal members 13Ca and 13Cb, the master cell 10C can also be used as a master cell of a measuring device that measures a short circuit and a withstand voltage of a single fuel cell.

  As described above, the master cells 10, 10A, 10B, and 10C according to the embodiment and Examples 1 to 3 are similarly configured. Hereinafter, effects of the manufacturing method of the master cells 10, 10A, 10B, and 10C according to the embodiment and Examples 1 to 3 will be described.

  In the manufacturing method of the master cell 10 according to the present embodiment, the metal members 13a and 13b are sandwiched between the separator 11 and the separator 12, and between the separator 11 and the metal member 13a and between the separator 12 and the metal member 13b. The master cell 10 is manufactured by sandwiching the thermoplastic sheet 14 and adjusting the number of the thermoplastic sheets 14 according to the pressure loss value of the master cell 10.

  With this configuration, the manufacturing method of the master cell 10 according to the present embodiment does not need to manufacture different and different members with a machine tool having a die or the like, and has a different pressure loss value. Even if it is 10, the effect that other components can be manufactured with the same member only by selecting suitably the required number of sheets of thermoplastic sheet 14 is acquired.

  The master cell 10 according to the present embodiment is composed of the same constituent elements as the fuel cell single cell, such as the separator 11, the separator 12, and the thermoplastic sheet 14, and the titanium plates of the metal members 13a and 13b are made of a single fuel cell. The same material as the separator of the cell is used, and the adhesive sheet 16 uses the same material as the adhesive sheet constituting the so-called three-layer sheet. Material can be used. As a result, the effect that the production cost of the master cell 10 can be reduced is obtained.

  Further, in the master cell 10 manufactured by the manufacturing method of the master cell 10 according to the present embodiment, the pressure loss of the master cell 10 does not change because the metal member 13 of the component does not deform, and the stable pressure The effect that the value of loss is maintained is obtained.

  Further, since the metal members 13a and 13b made of titanium have a plate-like plane, the metal members 13a and 13b and the adhesive sheet 16 can be bonded with a UV-type adhesive used in the fuel cell, The so-called hydrogen electrode that circulates oxygen and the so-called air electrode that circulates oxygen can be separated, so that the master cell 10 manufactured by the manufacturing method according to this embodiment is used as a master cell for both hydrogen and air. The effect that it can do is acquired.

  In the fuel cell as well, since gas passes through the space formed between the separator flow path and the surface of the gas diffusion layer, the structure constituted by the metal members 13a and 13b made of titanium having a flat surface is actually used. The effect that the pressure loss value close to that of the fuel cell can be obtained is obtained.

  Furthermore, the master cell 10 manufactured with the manufacturing method of the master cell 10 which concerns on this embodiment has the effect that the problem in the master cell manufactured with the manufacturing method of the conventional master cell can be eliminated. That is, the master cell manufactured by the conventional manufacturing method was different in shape from the single fuel cell.

  As a result, in the inspection facility 100 for inspecting the function of the single fuel cell S / A shown in FIG. 5, it is inspected whether or not the pressure loss measuring device 101 provided in the inspection facility 100 in the master cell is measuring normally. In this case, it is necessary to open the inspection facility 100 and set the master cell in the inspection facility 100, and there is a problem that it takes time for one inspection. As shown in FIG. 5, the inspection facility 100 is provided with facilities for performing various inspections and measuring pressure loss. The fuel cell S / A is automatically conveyed in the direction of the arrow to sequentially perform various inspections. And pressure loss measurements are made.

  Unlike the conventional master cell, the master cell 10 manufactured by the manufacturing method of the master cell 10 according to the present embodiment is configured with substantially the same shape and size as the fuel cell S / A. The fuel cell S / A is set and automatically transported, and the pressure loss measurement is performed just by setting the master cell 10 instead of the fuel cell S / A and automatically transporting it, in the same manner as inspecting with the inspection equipment 100. It can be checked whether or not the device 101 is measuring normally.

  As a result, it is possible to solve the problem that it takes a long time to perform one inspection that has occurred in the conventional master cell, and the effect that the inspection cost of the pressure loss measuring device 101 can be reduced can be obtained.

  Since 10A, 10B, and 10C according to Examples 1 to 3 are also manufactured in the same manner as the master cell 10 according to the embodiment, the production cost and pressure loss measurement of the master cell are similar to the master cell 10 according to the embodiment. The effect that the inspection cost of an apparatus can be reduced is acquired.

  Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above-described embodiments, and various designs can be made without departing from the spirit of the present invention described in the claims. It can be changed.

DESCRIPTION OF SYMBOLS 10 ... Master cell, 11 ... Separator, 11a, 12a ... Flow path, 12 ... Separator, 13, 13a, 13b, 13Aa, 13Ba, 13Ab, 13Bb, 13Cb ... Metal member, 13A , 13B, 13C ... member, 13Ac, 13Bc ... PET sheet, 13Cc ... polystyrene sheet, 14 ... thermoplastic sheet, 15 ... gasket, 16 ... adhesive sheet

Claims (1)

A method of manufacturing a master cell used for inspection of a pressure loss measuring device for measuring the pressure loss of a single fuel cell,
A metal member having the same thickness as the membrane electrode gas diffusion layer assembly constituting the fuel cell single cell is sandwiched between two separators having a flow path, and thermoplasticity is provided between the separator and the metal member. Sandwich the sheet,
A method for producing a master cell, comprising adjusting the number of the thermoplastic sheets according to a pressure loss value required for the master cell.

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