CA2330718C - Manufacturing apparatus and manufacturing method of solid polymer film with catalyst deposited thereon - Google Patents
Manufacturing apparatus and manufacturing method of solid polymer film with catalyst deposited thereon Download PDFInfo
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- CA2330718C CA2330718C CA002330718A CA2330718A CA2330718C CA 2330718 C CA2330718 C CA 2330718C CA 002330718 A CA002330718 A CA 002330718A CA 2330718 A CA2330718 A CA 2330718A CA 2330718 C CA2330718 C CA 2330718C
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- solid polymer
- polymer film
- catalyst
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- manufacturing
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- 239000003054 catalyst Substances 0.000 title claims abstract description 112
- 229920006254 polymer film Polymers 0.000 title claims abstract description 110
- 239000007787 solid Substances 0.000 title claims abstract description 110
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 19
- 239000000758 substrate Substances 0.000 claims description 18
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 abstract description 21
- 238000007731 hot pressing Methods 0.000 abstract description 10
- 239000010408 film Substances 0.000 description 42
- 238000010276 construction Methods 0.000 description 4
- 239000010409 thin film Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000557 Nafion® Polymers 0.000 description 1
- 229910001260 Pt alloy Inorganic materials 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8814—Temporary supports, e.g. decal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
- B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Mechanical Engineering (AREA)
- Fuel Cell (AREA)
- Inert Electrodes (AREA)
- Catalysts (AREA)
Abstract
An apparatus and method for manufacturing a solid polymer film with a catalyst sufficiently deposited thereon preheats a solid polymer film and then hot presses this solid polymer film together with a catalyst carrier film. Hot pressing the solid polymer film while it is soft from preheating increases the bond strength between the solid polymer film and the catalyst such that separation of the catalyst from the solid polymer film during film separation can be prevented. Moreover, keeping the catalyst carrier film cool prior to hot pressing and making the temperature on the catalyst carrier film side slightly lower that than on the solid polymer film side during hot pressing inhibits an increase in binding strength between the film and the catalyst, and thereby improves separation of the film.
Description
r~
MANUFACTURING APPARATUS AND MANUFACTURING METHOD OF
SOLID POLYMER FILM WITH CATALYST DEPOSITED THEREON
BACKGROUND OF THE INVENTION
1. Field of the Invention The invention relates to an apparatus and method for manufacturing a solid polymer film with a catalyst deposited thereon.
MANUFACTURING APPARATUS AND MANUFACTURING METHOD OF
SOLID POLYMER FILM WITH CATALYST DEPOSITED THEREON
BACKGROUND OF THE INVENTION
1. Field of the Invention The invention relates to an apparatus and method for manufacturing a solid polymer film with a catalyst deposited thereon.
2. Description of Related Art An apparatus for manufacturing a solid polymer film with a catalyst deposited thereon which joins solid polymer film and catalyst carrier film by means of a hot press and then separates the film therefrom has been proposed (e.g. Japanese Patent Application Laid-Open Publication No. Hei 10-6457). This apparatus joins a solid polymer film with catalyst carrier films by directly hot pressing them while the solid polymer film is sandwiched between the catalyst carrier films, and then separates each film of the catalyst carrier films from the thus obtained solid polymer film with a catalyst deposited thereon at an angle of substantially 90 degrees with respect thereto. Note that the solid polymer film with a catalyst deposited thereon manufactured in this way is used as an electrolyte (solid polymer film) and catalyst electrode (catalyst layer) used in a solid polymer fuel cell.
However, with the aforementioned apparatus there are cases in which the catalyst may not transfer well to the solid polymer film. The solid polymer film and the catalyst are joined by hot pressing, but the binding strength therebetween is weak. As a result.
the catalyst may separate from the solid polymer film in some areas when the film is separated from the solid polymer film.
SUMMARY OF THE INVENTION
An object of the invention is to manufacture a solid polymer film with a catalyst sufficiently deposited thereon by sufficiently transferring a catalyst to a polymer film.
In order to achieve the foregoing objective, a first aspect of an apparatus of the invention.for manufacturing a solid polymer film with a catalyst deposited thereon is provided with a heater for preheating the solid polymer film, a hot press machine for forming a joined member by heating and pressing together at least one catalyst carrier substrate carrying a catalyst on one side of a transfer substrate and a preheated solid polymer film, and a separating machine for separating the transferred substrate from the joined member.
Preheating the solid polymer film leads to an increase in bond strength between the solid polymer film and the catalyst, as well as prevents the catalyst from separating from the solid polymer film during the separation process of the transfer substrate.
In addition to the foregoing aspect, the catalyst carrier substrate may also be cooled prior to being contacted with the solid polymer film. This enables even better transfer of the catalyst to the solid polymer film.
Also in the foregoing aspect, a cooling machine for cooling the joined member may be provided. This makes it possible to further inhibit separation of the catalyst from the solid polymer film during the transfer substrate separation process.
Further, in the foregoing aspect, the heater and the hot press machine may be formed integrated. This enables the number of construction parts of the apparatus to be reduced, as well as simplifies the construction.
The apparatus and method according to the foregoing aspect enable the manufacture of a solid polymer film with a catalyst sufficiently deposited thereon with little catalyst separation.
BRIEF DESCRIPTION OF THIS DRAWINGS
FIG. 1 is a schematic drawing of a construction of an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon of a first embodiment of the invention;
FIG. 2 is an illustration of the manufacturing process of the solid polymer film with a catalyst deposited thereon;
FIG. 3 is a schematic drawing of a construction of an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon of another embodiment; and FIG. 4 is an illustration of the appearance of a heating pressure roller of an embodiment.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The embodiments of the invention will hereinafter be described with reference to the drawings. FIG. 1 is a schematic drawing of the structure of an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon which is a first embodiment of the invention. The apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 is provided with a rollout roller 22 for rolling out a solid polymer film 10, a pair of tension eliminating rollers 24 for eliminating tension of the rolled out solid polymer film 10, and a rollout roller 26 for rolling out a catalyst carrier film 12 carrying a catalyst on one side thereof. The rolled out catalyst carrier filin 12 is maintained at a predetermined cool temperature by a cold roller 28, and heated and pressed with the preheated solid polymer film 10 by the pair of heating pressure rollers 30A and 30B so as to become a joined member 14. The joined member 14 is then cooled by a cooling roller 34. A separating roller 36 conforms to the cooling roller 34, rotating therewith, separating the film 16 from the joined member 14. The angle of separation of the film 16 is set by a separation angle setting roller 38, and the film 16 is rolled up with a rollup roller 40. A solid polymer film with a catalyst deposited thereon 18 from which the film 16 has been separated is rolled up with a rollup roller 42.
The solid polymer film 10 is a thin film of a polymer material which exhibits good proton conductivity when wet. For example, a thin film formed of perflourosulfonate TM
ionomers (the DuPont product NAFION) with a thickness of approximately 10 to 300 ~
m may be used. Also, the catalyst carrier film 12 is a thin film in which material carrying a catalyst (for example, carbon powder) is applied to one side of a film 16 made of resin. Platinum or an alloy of platinum and another metal may be used as the catalyst.
The tension eliminating roller 24 rotates in sync with the transfer speed of the solid polymer film 10 according to the rotation of the heating pressure rollers 30A
and 30B to prevent tension from being exerted on the solid polymer film 10 as it is being heat pressed by the heating pressure rollers 30A and 30B. This enables deformation of the solid polymer film 10 during heat pressing to be controlled.
The cold roller 28 is provided with a cooling device 29 therein for cooling the surface of the cold roller 28, and keeps the solid polymer film 12 within an established cool temperature range (for example, 10 to 40°C).
The heating pressure rollers 30A and 30B are provided with a heater 31 therein, and a pressure device 32 is provided for exerting pressure between the heating pressure rollers 30A and 30B. The heater 31 heats the surface of the heating pressure rollers 30A and 30B. The heat from the heater 31 is adjusted to become the established temperature set within a range near the glass transition temperature (for example, 80 to 140°C) of the solid polymer film 10 to be pressed. Also, the pressure to be exerted between the heating pressure rollers 30A and 30B by the pressure device 32 is adjusted so as to be set within the range of 10 to 100Mpa. Note, the heat from the heater 31 provided in the heating pressure roller 30A is adjusted such that the surface temperature thereof becomes less than or equal to the surface temperature of the heating pressure roller 30B. This way, the cold roller 28 keeps the catalyst carrier film 12 cool and the heating pressure rollers 30A and 30B heat and press while the temperature on the side of the catalyst carrier film 12 is lower than that on the side of the solid polymer film 10.
This inhibits an increase in binding strength between the film 16 and the catalyst such that separation of the film 16 from the joined member 14 is able to be improved.
The cooling roller 34 is provided with a cooling device 35 therein for cooling the surface of the cooling roller 34, and cools the joined member 14 to within an established temperature range (for example, 10 to SO°C).
The separation roller 36 has a diameter of 30mm or less to improve separation of the film 16. Also, the position of the separation angle setting roller 38 is adjusted such that the angle between the film 16 to be separated by the separation roller 36 and the solid polymer film with a catalyst deposited thereon 18 is substantially 180 degrees.
Next, the manufacturing process of the solid polymer film with a catalyst deposited thereon 18 using the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 will be described with reference to FIG. 2. The manufacturing of the solid polymer film with a catalyst deposited thereon 18 begins first with a process of preheating the solid polymer film 10, in which the tension has been eliminated by the tension elimination roller 24 after being rolled out from the rollout roller 22, by means of the heating pressure roller 30B, while keeping the catalyst carrier film 12, which has been rolled out from the rollout roller 26, cool by means of the cold roller 28 (step S 10).
Preheating is conducted by transferring the solid polymer film 10 at a predetermined angle with respect to the heating pressure roller 30B. That is, the solid polymer film 10 is preheated by being contacted with the lower roller 30B prior to being pressed by the pair of heat pressure rollers 30A and 30B. Preheating is done because it softens the solid polymer film 10, and hot pressing with the solid polymer film 10 in this soft state increases the binding strength between the solid polymer film 10 and the catalyst.
Next, the preheated solid polymer film 10 and the cold catalyst carrier film 12 is hot pressed with the heating pressure rollers 30 and made into a joined member 14 (step S 12).
The conditions for the hot press are such that the temperature and pressure are set corresponding to the material of the solid polymer film 10 and the catalyst carrier film 12 (for example, within a temperature range of 80 to 140°C, and within a pressure range of 10 to IOOMpa).
Then, the joined member 14 is cooled with the cooling roller 34 (step S 14) and the film I 6 is separated from the joined member 14 with the separation roller 36 (step S 16), thereby completing the solid polymer film with a catalyst deposited thereon 18. Note that the completed solid polymer film with a catalyst deposited thereon 18 is rolled up.
with the rollup roller 42 and the separated film 16 is rolled up with the rollup roller 40.
According to the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 described above, preheating the solid polymer film 10 prior to hot pressing it increases the binding strength between the solid polymer film 10 and the catalyst so as to prevent the catalyst from separating from the solid polymer film 10 during separation of the film 16 from the joined member 14. In addition, keeping the catalyst carrier film 12 cool with the cold roller 28 and making the temperature of roller 30A on the side of the catalyst carrier film 12 lower than that of roller 30B, among the pair of heating pressure rollers 30A and 30B, inhibits an increase in binding strength between the film 16 and the catalyst from the hot press, thereby improving separation of the film 16 from the joined member 14. Also, making the diameter of the separation roller 36 30mm or less in addition to setting the angle between the film 16 and the solid polymer film with a catalyst deposited thereon 18 to substantially 180 degrees further improves the separation of the film 16. This enables a solid polymer film with a catalyst sufficiently deposited thereon to be manufactured.
Note that in the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 of the foregoing embodiment, the joined member 14 can also be maintained at approximately room temperature until immediately before hot pressing and the cold roller 28 can be omitted.
Also, the temperature of the roller 30B on the side of the catalyst carrier film 12 can also be the same temperature as the roller 30B on the side of the solid polymer film 10.
Also, the temperature of the roller 30A may be slightly higher than that of roller 30B.
Further, a cooling device may be provided between the heating pressure rollers and 30B and the cooling roller 34 and the joined member 14 cooled thereby.
Also, when there is sufficient space between the heating pressure rollers 30A and 30B and the cooling roller 34, a cooling device for the joined member 14 does not have to be provided.
Also, the diameter of the separation roller 36 may be larger than 30mm depending on the binding strength between the catalyst and the film 16 and the binding strength between the catalyst and the solid polymer film 10.
Moreover, with the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20, the angle between the film 16 to be separated with the separation roller 36 and the solid polymer film with a catalyst deposited thereon 18 is adjusted so as to be substantially 180 degrees, but this angle may be other than 180 degrees.
Furthermore, with the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20, the solid polymer film 10 is preheated by being transferred to the heating rollers 30 at a predetermined angle and contacted with these heating pressure rollers 30 prior to hot pressing. However, a preheating device can also be provided separately.
With the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 of the foregoing embodiment, a solid polymer film with a catalyst deposited thereon 18 in which a catalyst has been joined to one side of the solid polymer film 10 is manufactured. However, a solid polymer film with a catalyst deposited thereon 180 in which a catalyst has been joined to both sides of the solid polymer film 10 can also be manufactured. Fig. 3 shows an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200 used in this case. With the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200, the solid polymer film 10 is hot pressed by heating pressure rollers 30A and 30B while sandwiched between two sheets of catalyst carrier film 12A and 12B which are rolled out from two rollout rollers 26A
and 26B and kept cool by two cold rollers 28A and 28B. Joined by hot pressing, a joined member 140 becomes a solid polymer film with a catalyst deposited thereon 180 in which a catalyst is joined to both sides of the solid polymer film 10 after films 16A
and 16B have been separated therefrom with two separating rollers 36A and 36B.
Note that the solid polymer film with a catalyst deposited thereon 180 is rolled up with a rollup roller 42B and the two sheets of film 16A and 16B are rolled up with rollup rollers 40A ad 40B, respectively. According to the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200 of this embodiment, a solid polymer film with a catalyst deposited thereon 180 in which a catalyst is sufficiently joined to.
both sides of the solid polymer film 10 is able to be manufactured.
Moreover, in the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 and the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200, the entire catalyst applied to the catalyst carrier films 12, 12A, and 12B is joined with the solid polymer film 10. However, the catalyst can also be joined to the solid polymer film 10 in a predetermined pattern. In this case, as with the heating pressure roller 30c shown in FIG. 4, a transfer portion 30a protruding from the surface of the roller can be provided. Heat and pressure with respect to the solid polymer film 10 and the catalyst carrier film 12 are applied only to the area of the transfer portion 30a. Accordingly, the catalyst carried on the film 16 of the area to which heat and pressure are not applied is separated with the film 16 while the catalyst is joined to the solid polymer film 10 according to the pattern of the transfer portion 30a.
The embodiments of the invention have been described above. However, the invention is not limited in any way to these embodiments and may of course be modified without departing from the scope thereof.
However, with the aforementioned apparatus there are cases in which the catalyst may not transfer well to the solid polymer film. The solid polymer film and the catalyst are joined by hot pressing, but the binding strength therebetween is weak. As a result.
the catalyst may separate from the solid polymer film in some areas when the film is separated from the solid polymer film.
SUMMARY OF THE INVENTION
An object of the invention is to manufacture a solid polymer film with a catalyst sufficiently deposited thereon by sufficiently transferring a catalyst to a polymer film.
In order to achieve the foregoing objective, a first aspect of an apparatus of the invention.for manufacturing a solid polymer film with a catalyst deposited thereon is provided with a heater for preheating the solid polymer film, a hot press machine for forming a joined member by heating and pressing together at least one catalyst carrier substrate carrying a catalyst on one side of a transfer substrate and a preheated solid polymer film, and a separating machine for separating the transferred substrate from the joined member.
Preheating the solid polymer film leads to an increase in bond strength between the solid polymer film and the catalyst, as well as prevents the catalyst from separating from the solid polymer film during the separation process of the transfer substrate.
In addition to the foregoing aspect, the catalyst carrier substrate may also be cooled prior to being contacted with the solid polymer film. This enables even better transfer of the catalyst to the solid polymer film.
Also in the foregoing aspect, a cooling machine for cooling the joined member may be provided. This makes it possible to further inhibit separation of the catalyst from the solid polymer film during the transfer substrate separation process.
Further, in the foregoing aspect, the heater and the hot press machine may be formed integrated. This enables the number of construction parts of the apparatus to be reduced, as well as simplifies the construction.
The apparatus and method according to the foregoing aspect enable the manufacture of a solid polymer film with a catalyst sufficiently deposited thereon with little catalyst separation.
BRIEF DESCRIPTION OF THIS DRAWINGS
FIG. 1 is a schematic drawing of a construction of an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon of a first embodiment of the invention;
FIG. 2 is an illustration of the manufacturing process of the solid polymer film with a catalyst deposited thereon;
FIG. 3 is a schematic drawing of a construction of an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon of another embodiment; and FIG. 4 is an illustration of the appearance of a heating pressure roller of an embodiment.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The embodiments of the invention will hereinafter be described with reference to the drawings. FIG. 1 is a schematic drawing of the structure of an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon which is a first embodiment of the invention. The apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 is provided with a rollout roller 22 for rolling out a solid polymer film 10, a pair of tension eliminating rollers 24 for eliminating tension of the rolled out solid polymer film 10, and a rollout roller 26 for rolling out a catalyst carrier film 12 carrying a catalyst on one side thereof. The rolled out catalyst carrier filin 12 is maintained at a predetermined cool temperature by a cold roller 28, and heated and pressed with the preheated solid polymer film 10 by the pair of heating pressure rollers 30A and 30B so as to become a joined member 14. The joined member 14 is then cooled by a cooling roller 34. A separating roller 36 conforms to the cooling roller 34, rotating therewith, separating the film 16 from the joined member 14. The angle of separation of the film 16 is set by a separation angle setting roller 38, and the film 16 is rolled up with a rollup roller 40. A solid polymer film with a catalyst deposited thereon 18 from which the film 16 has been separated is rolled up with a rollup roller 42.
The solid polymer film 10 is a thin film of a polymer material which exhibits good proton conductivity when wet. For example, a thin film formed of perflourosulfonate TM
ionomers (the DuPont product NAFION) with a thickness of approximately 10 to 300 ~
m may be used. Also, the catalyst carrier film 12 is a thin film in which material carrying a catalyst (for example, carbon powder) is applied to one side of a film 16 made of resin. Platinum or an alloy of platinum and another metal may be used as the catalyst.
The tension eliminating roller 24 rotates in sync with the transfer speed of the solid polymer film 10 according to the rotation of the heating pressure rollers 30A
and 30B to prevent tension from being exerted on the solid polymer film 10 as it is being heat pressed by the heating pressure rollers 30A and 30B. This enables deformation of the solid polymer film 10 during heat pressing to be controlled.
The cold roller 28 is provided with a cooling device 29 therein for cooling the surface of the cold roller 28, and keeps the solid polymer film 12 within an established cool temperature range (for example, 10 to 40°C).
The heating pressure rollers 30A and 30B are provided with a heater 31 therein, and a pressure device 32 is provided for exerting pressure between the heating pressure rollers 30A and 30B. The heater 31 heats the surface of the heating pressure rollers 30A and 30B. The heat from the heater 31 is adjusted to become the established temperature set within a range near the glass transition temperature (for example, 80 to 140°C) of the solid polymer film 10 to be pressed. Also, the pressure to be exerted between the heating pressure rollers 30A and 30B by the pressure device 32 is adjusted so as to be set within the range of 10 to 100Mpa. Note, the heat from the heater 31 provided in the heating pressure roller 30A is adjusted such that the surface temperature thereof becomes less than or equal to the surface temperature of the heating pressure roller 30B. This way, the cold roller 28 keeps the catalyst carrier film 12 cool and the heating pressure rollers 30A and 30B heat and press while the temperature on the side of the catalyst carrier film 12 is lower than that on the side of the solid polymer film 10.
This inhibits an increase in binding strength between the film 16 and the catalyst such that separation of the film 16 from the joined member 14 is able to be improved.
The cooling roller 34 is provided with a cooling device 35 therein for cooling the surface of the cooling roller 34, and cools the joined member 14 to within an established temperature range (for example, 10 to SO°C).
The separation roller 36 has a diameter of 30mm or less to improve separation of the film 16. Also, the position of the separation angle setting roller 38 is adjusted such that the angle between the film 16 to be separated by the separation roller 36 and the solid polymer film with a catalyst deposited thereon 18 is substantially 180 degrees.
Next, the manufacturing process of the solid polymer film with a catalyst deposited thereon 18 using the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 will be described with reference to FIG. 2. The manufacturing of the solid polymer film with a catalyst deposited thereon 18 begins first with a process of preheating the solid polymer film 10, in which the tension has been eliminated by the tension elimination roller 24 after being rolled out from the rollout roller 22, by means of the heating pressure roller 30B, while keeping the catalyst carrier film 12, which has been rolled out from the rollout roller 26, cool by means of the cold roller 28 (step S 10).
Preheating is conducted by transferring the solid polymer film 10 at a predetermined angle with respect to the heating pressure roller 30B. That is, the solid polymer film 10 is preheated by being contacted with the lower roller 30B prior to being pressed by the pair of heat pressure rollers 30A and 30B. Preheating is done because it softens the solid polymer film 10, and hot pressing with the solid polymer film 10 in this soft state increases the binding strength between the solid polymer film 10 and the catalyst.
Next, the preheated solid polymer film 10 and the cold catalyst carrier film 12 is hot pressed with the heating pressure rollers 30 and made into a joined member 14 (step S 12).
The conditions for the hot press are such that the temperature and pressure are set corresponding to the material of the solid polymer film 10 and the catalyst carrier film 12 (for example, within a temperature range of 80 to 140°C, and within a pressure range of 10 to IOOMpa).
Then, the joined member 14 is cooled with the cooling roller 34 (step S 14) and the film I 6 is separated from the joined member 14 with the separation roller 36 (step S 16), thereby completing the solid polymer film with a catalyst deposited thereon 18. Note that the completed solid polymer film with a catalyst deposited thereon 18 is rolled up.
with the rollup roller 42 and the separated film 16 is rolled up with the rollup roller 40.
According to the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 described above, preheating the solid polymer film 10 prior to hot pressing it increases the binding strength between the solid polymer film 10 and the catalyst so as to prevent the catalyst from separating from the solid polymer film 10 during separation of the film 16 from the joined member 14. In addition, keeping the catalyst carrier film 12 cool with the cold roller 28 and making the temperature of roller 30A on the side of the catalyst carrier film 12 lower than that of roller 30B, among the pair of heating pressure rollers 30A and 30B, inhibits an increase in binding strength between the film 16 and the catalyst from the hot press, thereby improving separation of the film 16 from the joined member 14. Also, making the diameter of the separation roller 36 30mm or less in addition to setting the angle between the film 16 and the solid polymer film with a catalyst deposited thereon 18 to substantially 180 degrees further improves the separation of the film 16. This enables a solid polymer film with a catalyst sufficiently deposited thereon to be manufactured.
Note that in the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 of the foregoing embodiment, the joined member 14 can also be maintained at approximately room temperature until immediately before hot pressing and the cold roller 28 can be omitted.
Also, the temperature of the roller 30B on the side of the catalyst carrier film 12 can also be the same temperature as the roller 30B on the side of the solid polymer film 10.
Also, the temperature of the roller 30A may be slightly higher than that of roller 30B.
Further, a cooling device may be provided between the heating pressure rollers and 30B and the cooling roller 34 and the joined member 14 cooled thereby.
Also, when there is sufficient space between the heating pressure rollers 30A and 30B and the cooling roller 34, a cooling device for the joined member 14 does not have to be provided.
Also, the diameter of the separation roller 36 may be larger than 30mm depending on the binding strength between the catalyst and the film 16 and the binding strength between the catalyst and the solid polymer film 10.
Moreover, with the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20, the angle between the film 16 to be separated with the separation roller 36 and the solid polymer film with a catalyst deposited thereon 18 is adjusted so as to be substantially 180 degrees, but this angle may be other than 180 degrees.
Furthermore, with the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20, the solid polymer film 10 is preheated by being transferred to the heating rollers 30 at a predetermined angle and contacted with these heating pressure rollers 30 prior to hot pressing. However, a preheating device can also be provided separately.
With the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 of the foregoing embodiment, a solid polymer film with a catalyst deposited thereon 18 in which a catalyst has been joined to one side of the solid polymer film 10 is manufactured. However, a solid polymer film with a catalyst deposited thereon 180 in which a catalyst has been joined to both sides of the solid polymer film 10 can also be manufactured. Fig. 3 shows an apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200 used in this case. With the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200, the solid polymer film 10 is hot pressed by heating pressure rollers 30A and 30B while sandwiched between two sheets of catalyst carrier film 12A and 12B which are rolled out from two rollout rollers 26A
and 26B and kept cool by two cold rollers 28A and 28B. Joined by hot pressing, a joined member 140 becomes a solid polymer film with a catalyst deposited thereon 180 in which a catalyst is joined to both sides of the solid polymer film 10 after films 16A
and 16B have been separated therefrom with two separating rollers 36A and 36B.
Note that the solid polymer film with a catalyst deposited thereon 180 is rolled up with a rollup roller 42B and the two sheets of film 16A and 16B are rolled up with rollup rollers 40A ad 40B, respectively. According to the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200 of this embodiment, a solid polymer film with a catalyst deposited thereon 180 in which a catalyst is sufficiently joined to.
both sides of the solid polymer film 10 is able to be manufactured.
Moreover, in the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 20 and the apparatus for manufacturing a solid polymer film with a catalyst deposited thereon 200, the entire catalyst applied to the catalyst carrier films 12, 12A, and 12B is joined with the solid polymer film 10. However, the catalyst can also be joined to the solid polymer film 10 in a predetermined pattern. In this case, as with the heating pressure roller 30c shown in FIG. 4, a transfer portion 30a protruding from the surface of the roller can be provided. Heat and pressure with respect to the solid polymer film 10 and the catalyst carrier film 12 are applied only to the area of the transfer portion 30a. Accordingly, the catalyst carried on the film 16 of the area to which heat and pressure are not applied is separated with the film 16 while the catalyst is joined to the solid polymer film 10 according to the pattern of the transfer portion 30a.
The embodiments of the invention have been described above. However, the invention is not limited in any way to these embodiments and may of course be modified without departing from the scope thereof.
Claims (10)
1. An apparatus for manufacturing a solid polymer film with a catalyst deposited thereon made of a catalyst and a solid polymer film, comprising:
a heater that preheats the solid polymer film;
a hot press machine that forms a joined member by heating and pressing at least one catalyst substrate carrying a catalyst on one side of a transfer substrate and the solid polymer film preheated with the heater while the catalyst and the solid polymer film are in contact; and a separating machine that separates the transfer substrate from the joined member.
a heater that preheats the solid polymer film;
a hot press machine that forms a joined member by heating and pressing at least one catalyst substrate carrying a catalyst on one side of a transfer substrate and the solid polymer film preheated with the heater while the catalyst and the solid polymer film are in contact; and a separating machine that separates the transfer substrate from the joined member.
2. The apparatus according to claim 1, further comprising:
a cooling machine that cools the catalyst corner substrate.
a cooling machine that cools the catalyst corner substrate.
3. The apparatus according to claim 1, wherein the separating machine separates the transfer substrate at an angle of substantially 180 degrees with respect to the integrated joined member.
4. The apparatus according to claim 1, further comprising:
a cooling machine that cools the joined member.
a cooling machine that cools the joined member.
5. The apparatus according to claim 1, wherein the heater and the hot press machine are integrated.
6. The apparatus according to claim 1, wherein the joined member is such that the catalyst is joined to both sides of the solid polymer film.
7. A method for manufacturing a solid polymer film with a catalyst deposited thereon made of a catalyst and a solid polymer film, comprising:
preheating a solid polymer film;
contacting a catalyst carrier surface of at least one catalyst carrier substrate carrying a catalyst on one side thereof with the preheated solid polymer film;
forming a joined member by heating and pressing the catalyst carrier substrate and the solid polymer film; and separating the transfer substrate from the joined member.
preheating a solid polymer film;
contacting a catalyst carrier surface of at least one catalyst carrier substrate carrying a catalyst on one side thereof with the preheated solid polymer film;
forming a joined member by heating and pressing the catalyst carrier substrate and the solid polymer film; and separating the transfer substrate from the joined member.
8. A method according to claim 7, further comprising:
cooling the catalyst substrate prior to contacting the catalyst carrier substrate with the solid polymer film.
cooling the catalyst substrate prior to contacting the catalyst carrier substrate with the solid polymer film.
9. A method according to claim 7, wherein the angle between the transfer substrate and the solid polymer film becomes substantially 180 degrees in the separating step.
10. A method according to claim 7, further comprising:
cooling the solid polymer film with a catalyst deposited thereon prior to separating the transfer substrate.
cooling the solid polymer film with a catalyst deposited thereon prior to separating the transfer substrate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000003534A JP3465656B2 (en) | 2000-01-12 | 2000-01-12 | Bonded body manufacturing apparatus and bonded body manufacturing method |
| JP2000-003534 | 2000-01-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2330718A1 CA2330718A1 (en) | 2001-07-12 |
| CA2330718C true CA2330718C (en) | 2005-07-05 |
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ID=18532473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002330718A Expired - Fee Related CA2330718C (en) | 2000-01-12 | 2001-01-11 | Manufacturing apparatus and manufacturing method of solid polymer film with catalyst deposited thereon |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP3465656B2 (en) |
| CA (1) | CA2330718C (en) |
| DE (1) | DE10101058A1 (en) |
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| KR100428975B1 (en) * | 2001-11-14 | 2004-04-29 | 삼성에스디아이 주식회사 | Electrolyte dipping apparatus for lithium polymer battery |
| JP4538686B2 (en) * | 2004-06-24 | 2010-09-08 | 大日本印刷株式会社 | Transfer sheet for producing electrode-electrolyte membrane assembly and method for producing the same |
| US20070289707A1 (en) * | 2004-07-01 | 2007-12-20 | Umicore Ag & Co Kg | Lamination Process for Manufacture of Integrated Membrane-Electrode-Assemblies |
| JP4821096B2 (en) * | 2004-07-13 | 2011-11-24 | トヨタ自動車株式会社 | Manufacturing method of fuel cell |
| DE102004054503A1 (en) * | 2004-11-11 | 2006-05-24 | Umicore Ag & Co. Kg | Method and device for producing membrane-electrode assemblies |
| JP5017776B2 (en) * | 2004-12-28 | 2012-09-05 | 大日本印刷株式会社 | Method for producing membrane / catalyst layer assembly for polymer electrolyte fuel cell, method for producing polymer electrolyte fuel cell, and apparatus for producing membrane / catalyst layer assembly for polymer electrolyte fuel cell |
| JP5005214B2 (en) * | 2005-12-19 | 2012-08-22 | 東芝燃料電池システム株式会社 | Fuel cell manufacturing method and fuel cell manufacturing apparatus |
| JP2008311012A (en) * | 2007-06-13 | 2008-12-25 | Toyota Motor Corp | Production apparatus and production method for electrode material assembly for fuel cell, fuel cell |
| JP5245440B2 (en) * | 2008-02-08 | 2013-07-24 | トヨタ自動車株式会社 | Manufacturing method of membrane-electrode assembly for fuel cell |
| JP5272571B2 (en) * | 2008-08-12 | 2013-08-28 | トヨタ自動車株式会社 | FUEL CELL MANUFACTURING METHOD AND FUEL CELL |
| JP5077188B2 (en) * | 2008-10-20 | 2012-11-21 | トヨタ自動車株式会社 | Manufacturing apparatus and manufacturing method of electrode material assembly for fuel cell |
| JP5077187B2 (en) * | 2008-10-20 | 2012-11-21 | トヨタ自動車株式会社 | Manufacturing apparatus and manufacturing method of electrode material assembly for fuel cell |
| JP5282536B2 (en) * | 2008-11-17 | 2013-09-04 | 大日本印刷株式会社 | Peeling device and method for manufacturing joined body using the same |
| JP5352252B2 (en) * | 2009-01-19 | 2013-11-27 | トヨタ自動車株式会社 | Method for producing catalyst layer for fuel cell |
| JP5412860B2 (en) * | 2009-02-06 | 2014-02-12 | 大日本印刷株式会社 | Manufacturing apparatus and manufacturing method for membrane catalyst layer assembly, and manufacturing apparatus and manufacturing method for membrane electrode assembly |
| JP2010198948A (en) * | 2009-02-26 | 2010-09-09 | Toppan Printing Co Ltd | Membrane-electrode assembly and method of manufacturing the same, and polymer electrolyte fuel cell |
| JP5439867B2 (en) * | 2009-03-05 | 2014-03-12 | 凸版印刷株式会社 | Membrane electrode assembly manufacturing method and manufacturing apparatus |
| US20120003572A1 (en) * | 2010-02-10 | 2012-01-05 | Jun Matsumura | Manufacturing method and manufacturing apparatus for catalyst-coated membrane assembly |
| JP5751248B2 (en) * | 2010-03-08 | 2015-07-22 | 凸版印刷株式会社 | Membrane-electrode assembly manufacturing apparatus and method of manufacturing membrane-electrode assembly |
| US20130045438A1 (en) | 2010-03-26 | 2013-02-21 | Yasuhiro Haba | Producing method of fuel cell membrane electrode assembly and producing apparatus of the same |
| JP5529067B2 (en) * | 2011-03-31 | 2014-06-25 | Ｊｘ日鉱日石エネルギー株式会社 | Membrane electrode assembly manufacturing method and membrane electrode assembly manufacturing apparatus |
| JP5691873B2 (en) * | 2011-06-20 | 2015-04-01 | トヨタ自動車株式会社 | Membrane electrode assembly manufacturing apparatus and manufacturing method |
| JP5768706B2 (en) * | 2011-12-27 | 2015-08-26 | トヨタ自動車株式会社 | Joining device |
| JP5924233B2 (en) * | 2012-10-25 | 2016-05-25 | トヨタ自動車株式会社 | Joining apparatus and joining method |
| JP5699348B2 (en) * | 2013-11-11 | 2015-04-08 | 大日本印刷株式会社 | Manufacturing apparatus and manufacturing method for membrane catalyst layer assembly, and manufacturing apparatus and manufacturing method for membrane electrode assembly |
| JP2016076366A (en) * | 2014-10-06 | 2016-05-12 | 凸版印刷株式会社 | Method of manufacturing fuel battery membrane - electrode assembly, and membrane - electrode assembly |
| JP6245166B2 (en) * | 2014-12-25 | 2017-12-13 | トヨタ自動車株式会社 | Method for producing reinforced electrolyte membrane |
| CN108292760B (en) | 2015-11-19 | 2021-09-10 | 东丽株式会社 | Method and apparatus for producing joined body comprising polymer electrolyte membrane |
| NL1041655B1 (en) * | 2015-12-30 | 2017-07-11 | Bosch Gmbh Robert | Method for manufacturing steel transverse elements for a drive belt for a continuously variable transmission. |
| KR102154178B1 (en) * | 2018-10-26 | 2020-09-09 | 한국과학기술연구원 | Composite electrolyte membrane with a radical scavenger particle layer, a method for producing the same, and a fuel cell comprising the same |
| US11201344B2 (en) * | 2020-03-09 | 2021-12-14 | Daimler Ag | Method for manufacturing a membrane assembly for a fuel cell with catalyst free edge areas; membrane assembly and fuel cell with membrane assembly |
| CN116231037A (en) * | 2023-03-15 | 2023-06-06 | 无锡先导智能装备股份有限公司 | A cell heat pressing device |
| WO2025071316A1 (en) * | 2023-09-27 | 2025-04-03 | 주식회사 엘지에너지솔루션 | Method for manufacturing electrode for lithium secondary battery |
| KR102903085B1 (en) * | 2023-09-27 | 2025-12-22 | 주식회사 엘지에너지솔루션 | Method for preparing electrode for lithium secondary battery |
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| JP3554321B2 (en) * | 1991-02-19 | 2004-08-18 | ザ リージェンツ オブ ザ ユニバーシティ オブ カリフォルニア | Membrane catalyst layer for fuel cell |
| JPH06203850A (en) * | 1992-12-25 | 1994-07-22 | Tokyo Gas Co Ltd | Method and apparatus for joining solid polymer electrolyte membrane and electrode |
| US5547911A (en) * | 1994-10-11 | 1996-08-20 | E. I. Du Pont De Nemours And Company | Process of imprinting catalytically active particles on membrane |
| ATE245852T1 (en) * | 1995-10-06 | 2003-08-15 | Dow Global Technologies Inc | LIQUID DISTRIBUTION STRUCTURES FOR MEMBRANE ELECTRODE ARRANGEMENTS OF FUEL CELLS |
| JPH1064574A (en) * | 1996-08-26 | 1998-03-06 | Fuji Electric Co Ltd | Method for manufacturing solid polymer electrolyte fuel cell |
| JPH11224679A (en) * | 1998-02-06 | 1999-08-17 | Matsushita Electric Ind Co Ltd | Polymer electrolyte fuel cell and method of manufacturing the same |
| JP2000182632A (en) | 1998-12-11 | 2000-06-30 | Toshiba Corp | Method for producing electrode for solid polymer electrolyte fuel cell |
-
2000
- 2000-01-12 JP JP2000003534A patent/JP3465656B2/en not_active Expired - Fee Related
-
2001
- 2001-01-11 DE DE10101058A patent/DE10101058A1/en not_active Withdrawn
- 2001-01-11 CA CA002330718A patent/CA2330718C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE10101058A1 (en) | 2001-08-02 |
| CA2330718A1 (en) | 2001-07-12 |
| JP3465656B2 (en) | 2003-11-10 |
| JP2001196070A (en) | 2001-07-19 |
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