KR20150120790A - Device and method for manufacturing membrane-electrode assembly of fuel cell - Google Patents

Abstract

Disclosed herein is a device for manufacturing a membrane-electrode assembly for a fuel cell. The device for manufacturing the membrane-electrode assembly for the fuel cell includes: a membrane unwinder supplying a polymer electrolyte membrane in a roll shape; a film unwinder supplying a release film in a roll shape with a catalyst electrode layer of an anode and an cathode coated at regular intervals to both an upper and a lower side of the polymer electrolyte membrane; a film rewinder collecting a film loaded with the catalyst electrode layer; an up-and-down junction roll arranged on an upper and lower side of a pathway of the polymer electrolyte membrane and the release film, wherein at least one film is installed to be transferred to the upper and lower side thereof by compressing a catalyst electrode layer against the upper and lower side of the polymer electrolyte membrane; a releasing bar installed, at an exit of the up-and-down junction roll, on the upper and lower side of the pathway thereof to uncover the releasing film; and a position sensor installed at an entrance of the up-and-down junction roll to detect a location of the catalyst electrode layer.

Description

TECHNICAL FIELD [0001] The present invention relates to a membrane-electrode assembly for a fuel cell,

An embodiment of the present invention relates to a fuel cell stack component manufacturing system, and more particularly, to an apparatus and a method for manufacturing a membrane-electrode assembly for a fuel cell that manufactures a membrane-electrode assembly (MEA) of a fuel cell .

As is known, a fuel cell produces electricity by electrochemical reaction of hydrogen and oxygen. Such a fuel cell is characterized in that it can continuously generate electricity by supplying chemical reactants from the outside without a separate charging process.

The fuel cell can be constructed by disposing a separator (separator or bipolar plate) on both sides of a membrane-electrode assembly (MEA) therebetween. These fuel cells may be arranged continuously as a plurality of units and may be constituted by a fuel cell stack.

Here, the membrane-electrode assembly, which is a core component of the fuel cell, has a three-layer structure in which an anode catalyst electrode layer is formed on one side of the polymer electrolyte membrane and a cathode catalyst electrode layer is formed on the other side of the polymer electrolyte membrane .

Examples of the method of manufacturing the membrane-electrode assembly having the three-layer structure include a direct coating method and a decal method.

Among them, in the case of the decal method, the catalyst slurry is coated on the surface of the release film and then dried to form a catalyst electrode layer, a release film having catalyst electrode layers formed on both surfaces of the polymer electrolyte membrane is laminated, Are transferred to both surfaces of the polymer electrolyte membrane and joined together, and the release film is removed to produce a three-layer structure of the membrane-electrode assembly.

That is, in the manufacturing process of the membrane-electrode assembly using the decal method, the polymer electrolyte membrane of the roll type catalyst electrode layer roll type is continuously laminated (thermocompression bonded) through the high-temperature high-pressure bonding roll, Of the membrane-electrode assembly.

In this way, it is advantageous to manufacture a membrane-electrode assembly of a three-layer structure by a decal method using a roll laminating method, which can improve a manufacturing speed and can be easily scaled up and advantageous in a mass production process.

However, in the decoloration method using the continuous roll laminating method, a release film coated with a catalyst electrode layer is placed on both sides of the polymer electrolyte membrane, the polymer electrolyte membrane is passed between high temperature and high pressure bonding rolls, and the catalyst electrode layer and the polymer electrolyte membrane It is difficult to align the joint positions of the anode and the cathode catalyst electrode layers.

That is, since the release film and the polymer electrolyte membrane continuously pass between the bonding rolls of the high temperature and high pressure which are constantly pressed, and the catalyst electrode layer is joined to both surfaces of the polymer electrolyte membrane, it is difficult to align the position of the catalyst electrode layer in the continuous roll laminating process It is true.

The matters described in the background section are intended to enhance the understanding of the background of the invention and may include matters not previously known to those skilled in the art.

Embodiments of the present invention provide an apparatus and method for manufacturing a membrane-electrode assembly for a fuel cell in which a catalyst electrode layer is continuously roll laminated on both sides of a polymer electrolyte membrane in a decal system so that the position of the catalyst electrode layer can be automatically aligned.

The apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention includes: (i) a membrane unwinder for unrolling and supplying a roll-shaped polymer electrolyte membrane; (ii) a catalyst electrode layer of an anode and a cathode, (Iii) a film rewinder for recovering the film on which the catalyst electrode layer is carried; and (iv) a pathway for the polymer electrolyte membrane and the release film A top and bottom bonding rolls disposed on the upper and lower sides, at least one of which is provided so as to be movable in the up and down direction, for pressing and transferring the catalyst electrode layer onto the upper and lower surfaces of the polymer electrolyte membrane, and v) A release bar provided on each of upper and lower sides of the progress path of the release roll to peel off the release film, and vi) And a position sensor for detecting the position of the catalyst electrode layer.

In addition, the apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention may include an operating source for reciprocating at least one of the upper and lower bonding rolls in the vertical direction.

Also, in the apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention, the upper and lower bonding rolls may have different cross-sectional diameters and be rotatable in opposite directions to each other.

Further, in the apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention, any one of the upper and lower bonding rolls may have a sectional diameter of a large diameter portion and the other may have a sectional diameter of a small diameter portion.

Further, in the apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention, a deformed bar corresponding to the joining roll of the large-diameter portion among the upper and lower joining rolls may have a shape And can be disposed at a position farther away from the deformable bar corresponding to the bonding roll of the neck portion.

Further, in the apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention, the deformed bar corresponding to the bonding roll of the small-diameter portion has a distance As shown in FIG.

The apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention controls operation of the film rewinder based on a sensing signal sensed by the position sensor, And a controller for controlling the operation of the operating source based on the traveling position.

Further, in the apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention, the upper and lower bonding rolls may be uncompressed at a position between the catalyst electrode layers by operation of an operating source by the controller .

The method of manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention includes the steps of: (a) unrolling a roll-shaped polymer electrolyte membrane to supply a predetermined path; (b) (C) the position of the catalyst electrode layer on the entry side between the upper and lower bonding rolls into which the polymer electrolyte membrane and the release film enter is detected by a position sensor (D) a control signal is applied to the operating source through the controller when the catalyst electrode layer of the release film enters between the upper and lower bonding rolls with the polymer electrolyte membrane interposed therebetween, (E) a region between the catalyst electrode layers of the release film is sandwiched between the joining rolls, (F) a controller for controlling the catalyst of the release film through the controller in response to the detection signal detected by the position sensor, The electrode layer positions can be aligned.

Also, in the method of manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention, the controller may align the position of the catalyst electrode layer by controlling a rewinding speed of the film rewinder.

The method for manufacturing a membrane electrode assembly for a fuel cell according to an embodiment of the present invention is characterized in that the catalyst electrode layer is joined to at least one of the upper and lower surfaces of the polymer electrolyte membrane through the upper and lower bonding rolls The release film may be removed.

The embodiments of the present invention can control the operation of the upper and lower bonding rolls in accordance with the advancing positions of the first and second release films positioned above and below the polymer electrolyte membrane and to control the operation of the film rewinder So that the position of the catalyst electrode layer can be automatically aligned.

Therefore, in the embodiment of the present invention, since the catalyst electrode layer can be automatically aligned in the process of continuously laminating the catalyst electrode layers on both sides of the polymer electrolyte membrane in a decal manner, the quality of the membrane-electrode assembly can be improved.

These drawings are for the purpose of describing an exemplary embodiment of the present invention, and therefore the technical idea of the present invention should not be construed as being limited to the accompanying drawings.
1 is a schematic view of an apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention.
FIGS. 2A to 2D illustrate a method of manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention.
3 and 4 are views schematically showing a modification of the membrane-electrode assembly manufacturing apparatus for a fuel cell according to the embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art to which the present invention pertains. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

In the following detailed description, the names of components are categorized into the first, second, and so on in order to distinguish them from each other in the same relationship, and are not necessarily limited to the order in the following description.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise.

It should be noted that terms such as " ... unit ", "unit of means "," part of item ", "absence of member ", and the like denote a unit of a comprehensive constitution having at least one function or operation it means.

1 is a schematic view of an apparatus for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention.

Referring to FIG. 1, an apparatus 100 for manufacturing a membrane-electrode assembly for a fuel cell according to an exemplary embodiment of the present invention can be applied to an automation system for automatically and continuously manufacturing parts of unit fuel cells constituting a fuel cell stack have.

The apparatus 100 for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention includes a membrane electrode assembly (membrane electrode assembly) 100 for a fuel cell, which comprises a polymer electrolyte membrane 1, Electrode assembly 7 of a three-layer structure is formed by joining the cathode catalyst electrode layer 5 to the other surface (lower surface in the drawing) of the polymer electrolyte membrane 1, Can be produced.

For example, an apparatus 100 for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention can be manufactured by coating a catalyst slurry on the surfaces of release films 21 and 31 and drying the catalyst slurry to form catalyst electrode layers 3 and 5 And the release films 21 and 31 on which the catalyst electrode layers 3 and 5 are formed on both sides of the polymer electrolyte membrane 1 are laminated and then the catalyst electrode layers 3 and 5 are bonded to the polymer electrolyte membrane 3 using the roll laminating method The membrane-electrode assembly 7 of the three-layer structure can be manufactured by transferring and bonding the membrane 1 on both sides and removing the release films 21 and 31.

The apparatus 100 for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention continuously roll laminate catalyst electrode layers 3 and 5 on both sides of a polymer electrolyte membrane 1 in a decal system, , 5) are automatically arranged.

The apparatus 100 for manufacturing a membrane electrode assembly for a fuel cell according to an embodiment of the present invention basically comprises a membrane unwinder 10, a film unwinder 20, 30, a top and bottom bonding roll 40, 50, a position sensor 60, mold release bars 70, 80, and a controller 90, which will be described below.

The membrane unwinder (10) unwinds the polymer electrolyte membrane (1) rolled in a predetermined path and supplies it to the polymer electrolyte membrane (1) by its own drive, The polymer electrolyte membrane 1 can be released and supplied by the driving force of winding the polymer electrolyte membrane 1 on which the electrode layers 3 and 5 are laminated.

The film unwinders 20 and 30 will be described below as a first film unwinder 20 and a second film unwinder 30, respectively. The first film unwinder 20 can supply a roll-shaped first release film 21 on which the anode catalyst electrode layer 3 is coated at regular intervals to the upper side of the polymer electrolyte membrane 1.

The second film unwinder 30 can release the roll-shaped second release film 31 having the cathode catalyst electrode layer 5 coated thereon at the lower side of the polymer electrolyte membrane 1.

The anode catalyst electrode layer 3 is opposed to the upper surface of the polymer electrolyte membrane 1 in a state where the anode catalyst electrode layer 3 is coated on one surface (lower surface in the drawing) of the first release film 21, Can be supplied along the path.

The cathode catalyst electrode layer 5 is opposed to the lower surface of the polymer electrolyte membrane 1 in a state where the cathode catalyst electrode layer 5 is coated on one surface (upper surface in the drawing) of the second release film 31, .

The upper and lower bonding rolls 40 and 50 are sandwiched between the anode catalyst electrode layer 3 and the cathode catalyst electrode layer 3 of the first and second release films 21 and 31 located above and below the polymer electrolyte membrane 1, 5 are bonded to the upper and lower surfaces of the polymer electrolyte membrane 1 by bonding the catalyst electrode layers 3, 5, respectively.

The upper and lower bonding rolls 40 and 50 are respectively disposed on the upper and lower sides of the path of the polymer electrolyte membrane 1 and the first and second release films 21 and 31 and at least one of them can be reciprocated vertically Respectively.

The upper and lower bonding rolls 40 and 50 are bonding rollers which rotate in opposite directions to press the first and second release films 21 and 31 located between the polymer electrolyte membrane 1 and the upper and lower sides thereof Respectively.

For example, the upper and lower bonding rolls 40 and 50 are provided so as to be vertically reciprocable on the upper and lower sides of the path of the polymer electrolyte membrane 1 and the first and second release films 21 and 31.

That is, in order to press the first and second release films 21 and 31 located on the upper and lower sides of the polymer electrolyte membrane 1 therebetween, the upper bonding roll 40 moves in the downward direction, The roll 50 moves upward.

The upper bonding roll 40 moves upward in order to release the pressing on the first and second release films 21 and 31 located between the upper and lower sides of the polymer electrolyte membrane 1 , The lower joining roll 50 moves in the downward direction.

Here, the upper and lower bonding rolls 40 and 50 can be installed to be reciprocally movable up and down by operating sources 41 and 51. For example, the operating sources 41 and 51 are connected to the upper and lower bonding rolls 40 and 50, respectively. The upper and lower bonding rolls 40 and 50 serve as an operating cylinder or a servo linear motor . ≪ / RTI >

Meanwhile, in the embodiment of the present invention, the upper and lower bonding rolls 40 and 50 may have different cross-sectional diameters and be rotatable in opposite directions to each other.

For example, the upper bonding roll 40 is provided with a bonding roller having a cross-sectional diameter of a small diameter portion, and the lower bonding roll 50 has a cross-sectional diameter of a large diameter portion relatively larger than the diameter of the upper bonding roll 40 And is provided with a joining roller.

The position sensor 60 detects the position of the catalyst electrode layers 3 and 5 on the first and second release films 21 and 31 entering between the upper and lower bonding rolls 40 and 50. In this embodiment, .

The position sensor 60 is installed on the entry side of the upper and lower bonding rolls 40 and 50 in the path of the polymer electrolyte membrane 1 and the first and second release films 21 and 31, Detects the positions of the catalyst electrode layers 3 and 5 on the films 21 and 31, and outputs the detection signals to the controller 90, which will be described later.

Since the position sensor 60 is provided as a position sensor of a known technology for detecting the position of a predetermined object such as a vision sensor and a laser sensor, detailed description of the configuration will be omitted herein.

In the embodiment of the present invention, the deformed bars 70 and 80 are delamination bars, which will be described below as a first deformable bar 70 and a second deformable bar 80. The first and second mold release bars 70 and 80 are formed on the first and second release films 40 and 50 where the catalyst electrode layers 3 and 5 are bonded to the polymer electrolyte membrane 1, (21, 31).

The first and second release bars 70 and 80 are provided on upper and lower sides of the advancing path of the polymer electrolyte membrane 1 and the first and second release films 21 and 31 on the advancing side of the upper and lower bonding rolls 40 and 50 And are installed as close as possible to the upper and lower bonding rolls 40 and 50, respectively.

That is, the first deformed bar 70 is installed on the upper side of the path of the upper side in the vicinity of the upper bonding roll 40 and the second releasing bar 80 is located on the lower side of the lower bonding roll 50, As shown in FIG.

Here, the second release bar 80 may be disposed at a position distant from the first release bar 70 with respect to the traveling direction of the first and second release films 21 and 31.

The first deformed bar 70 is spaced from the center of the upper bonding roll 40 by a distance shorter than a distance between the catalyst electrode layers 3 and 5 coated on the first and second release films 21 and 31 As shown in FIG.

This is because when the first deformed bar 70 is located at a distance longer than the interval between the catalyst electrode layers 3 and 5 with respect to the center of the upper bonding roll 40, The upper and lower bonding rolls 40 and 50 are joined to the next catalyst electrode layers 3 and 5 with the polymer electrolyte membrane 1 before being transferred to the two release films 21 and 31, The positions of the catalyst electrode layers 3 and 5 can not be aligned.

As described above, the first and second release films 21 and 31 removed through the first and second release bars 70 and 80 are respectively wound on the first and second film rewinders 75 and 85, The running speed or the rewinding speed of the first and second release films 21 and 31 can be determined by the driving force provided to the first and second film rewinders 75 and 85.

In the embodiment of the present invention, the controller 90 controls the overall operation of the apparatus 100, and based on the sensing signal sensed by the position sensor 60 mentioned above, the film rewinders 75 And 85 and controls the operation of the operating sources 41 and 51 based on the advancing positions of the polymer electrolyte membrane 1 and the first and second release films 21 and 31.

The operation control of the film rewinders 75, 85 of the controller 90 and the operation of the operating sources 41, 51 will be described in detail later through the method of manufacturing the fuel cell membrane-electrode assembly.

Hereinafter, a method of manufacturing a membrane-electrode assembly for a fuel cell using the apparatus 100 for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings Explain.

FIGS. 2A to 2D illustrate a method of manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention.

Referring to FIG. 2A, in the embodiment of the present invention, a polymer electrolyte membrane 1 wound in a roll shape is unwound through a membrane unwinder 10 and supplied to a predetermined path.

At the same time, in the embodiment of the present invention, the first release film 21 wound in a roll form through the first film unwinder 20 is fed to the upper side of the polyelectrolyte membrane 1 along the above-mentioned course .

In the embodiment of the present invention, the second release film 31 wound in a roll form through the second film unwinder 30 is unwound and supplied to the lower side of the polymer electrolyte membrane 1 along the above-mentioned course.

The anode catalyst electrode layer 3 is opposed to the upper surface of the polymer electrolyte membrane 1 in a state where the anode catalyst electrode layer 3 is coated on the lower surface of the first release film 21, .

The cathode catalyst electrode layer 5 is coated on the upper surface of the second release film 31 so that the cathode catalyst electrode layer 5 faces the lower surface of the polymer electrolyte membrane 1 and can be supplied along the above- have.

In this case, the upper and lower bonding rolls 40 and 50 according to the embodiment of the present invention are arranged such that the polymer electrolyte membrane 1 and the catalyst electrode layers 3 and 5 of the first and second release films 21 and 31 enter The polymer electrolyte membrane 1 and the first and second release films 21 and 31 are pressed against each other by moving in the vertical direction by the operating members 41 and 51 and rotating in opposite directions.

That is, in the embodiment of the present invention, the catalyst electrode layers 3 and 5 of the first and second release films 21 and 31 enter the space between the upper and lower bonding rolls 40 and 50 with the polymer electrolyte membrane 1 interposed therebetween A control signal is applied to the operating source 41 or 51 through the controller 90 to move the upper bonding roll 40 in the downward direction and move the lower bonding roll 50 in the upper direction.

Then, the catalyst electrode layers 3 and 5 coated on the first and second release films 21 and 31 are transferred to the upper and lower surfaces of the polymer electrolyte membrane 1 by compression of the upper and lower bonding rolls 40 and 50, .

During the above process, in the embodiment of the present invention, the position sensor 60 is disposed between the upper and lower bonding rolls 40 and 50, and the catalyst electrode layers 3 and 5 of the first and second release films 21 and 31, ) Position and outputs the detection signal to the controller 90. [

On the other hand, as the catalyst electrode layers 3 and 5 of the first and second release films 21 and 31 enter the space between the upper and lower bonding rolls 40 and 50 with the polymer electrolyte membrane 1 interposed therebetween, The first release film 21 is wound on the first film rewinder 75 while being peeled off by the first release bar 70 in the process of transferring the first release film 21 to the upper and lower surfaces of the polymer electrolyte membrane 1 2b).

The catalyst electrode layers 3 and 5 are bonded to the upper and lower surfaces of the polymer electrolyte membrane 1 and the catalyst electrode layers 3 and 5 bonded to the polymer electrolyte membrane 1 in a state where the first release film 21 is peeled off, The upper and lower bonding rolls 40 and 50 are moved up and down by the operating sources 41 and 51 so that the polymer electrolyte membrane (3, 5) bonded to the catalyst layer (1).

The regions between the catalyst electrode layers 3 and 5 of the first and second release films 21 and 31 are sandwiched by the upper and lower bonding rolls 40 and 50 It is possible to release the mutual pressing of the upper and lower bonding rolls 40 and 50 by applying a control signal to the operating sources 41 and 51 through the controller 90. [

In this case, a control signal is applied to the operating source 41 or 51 through the controller 90 to move the upper bonding roll 40 in the upward direction and move the lower bonding roll 50 in the lower direction, The pressing of the upper and lower bonding rolls 40 and 50 to the electrolyte membrane 1 and the catalyst electrode layers 3 and 5 can be released.

At this time, the first release film 21 is peeled off by the first release bar 70 and wound on the first film rewinder 75, and the second release film 31 is peeled off by the second release bar 80 And is wound on the second film rewinder 85.

In this embodiment of the present invention, the first and second release rolls 40 and 50 are separated from each other by the controller 90 according to the detection signal sensed by the position sensor 60, The positions of the catalytic electrode layers 3 and 5 on the films 21 and 31 can be aligned.

Alignment of the catalyst electrode layers 3 and 5 is possible by controlling the film rewinding speed (running speed) of the first and second film rewinders 75 and 85 through the controller 90.

On the other hand, when the alignment of the catalyst electrode layers 3, 5 entering between the upper and lower bonding rolls 40, 50 with the polymer electrolyte membrane 1 therebetween is completed as described above, The catalytic electrode layers 3 and 5 are bonded to the upper and lower surfaces of the polymer electrolyte membrane 1 by repeating the above-described series of processes (see FIGS. 2A to 2C) 21, 31 can be removed through the first and second release bars 70, 80.

In the embodiment of the present invention, the position of the catalytic electrode layers 3 and 5 entering between the upper and lower bonding rolls 40 and 50 is sensed through the position sensor 60, and the region between the catalytic electrode layers 3 and 5 is vertically The position of the catalyst electrode layers 3 and 5 can be aligned according to the detection signal of the position sensor 60 at the time of entering between the bonding rolls 40 and 50. [

According to the apparatus and method for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention as described above, the first and second release films (first and second release films And the operation of the film rewinders 75 and 85 is controlled in accordance with the detection signal of the position sensor 60 to control the operation of the catalyst electrode layers 3, 5 can be aligned.

Therefore, in the embodiment of the present invention, the catalytic electrode layers 3 and 5 are continuously laminated on both sides of the polymer electrolyte membrane 1 in a decal system so that the positions of the catalyst electrode layers 3 and 5 can be automatically aligned.

Thus, in the embodiment of the present invention, the positions of the catalyst electrode layers 3 and 5 can be automatically aligned in the process of continuously laminating the catalyst electrode layers 3 and 5 on both surfaces of the polymer electrolyte membrane 1 in a decal- So that the quality of the membrane-electrode assembly 7 can be improved.

3 and 4 are views schematically showing a modification of the membrane-electrode assembly manufacturing apparatus for a fuel cell according to the embodiment of the present invention.

Referring to FIG. 3, a first modification of the apparatus 200 for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention includes upper and lower bonding rolls 140 and 150 having different cross-sectional diameters, The roll 140 may have a cross-sectional diameter of a large diameter portion and the lower bonding roll 150 may have a cross-sectional diameter of a small diameter portion.

The first and second release bars 170 and 180 are disposed on the upper side of the upper and lower bonding rolls 140 and 150 and on the upper and lower sides of the advancing path of the polymer electrolyte membrane 1 and the first and second release films 21 and 31 And are installed as close as possible to the upper and lower bonding rolls 140 and 150, respectively.

4, a second modification of the apparatus 300 for manufacturing a membrane-electrode assembly for a fuel cell according to an embodiment of the present invention includes the upper and lower bonding rolls 240 and 250 having the cross-sectional diameter of the small- . ≪ / RTI >

Similarly, the first and second deformable bars 270 and 280 are disposed on the upper side of the advancing path of the upper and lower bonding rolls 240 and 250 and on the upper and lower sides of the advancing path of the polymer electrolyte membrane 1 and the first and second release films 21 and 31 And are installed as close as possible to the upper and lower bonding rolls 240 and 250, respectively.

The remaining structures and operations of the membrane-electrode assembly manufacturing apparatuses 200 and 300 according to the first and second modified examples are the same as those described above, and therefore, a detailed description thereof will be omitted.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Other embodiments may easily be suggested by adding, changing, deleting, adding, or the like of elements, but this also falls within the scope of the present invention.

1 ... polymer electrolyte membrane 3, 5 ... catalytic electrode layer
7 ... Membrane-electrode assembly 10 ... Membrane unwinder
20 ... first film unwinder 21 ... first release film
30 ... second film unwinder 31 ... second release film
40 ... upper bonding rolls 41, 51 ... working rollers
50 ... lower joining roll 60 ... position sensor
70 ... First variant bar 75 ... First film rewinder
80 ... second release bar 85 ... second film rewinder
90 ... controller

Claims (11)

A membrane unwinder for unwinding and feeding the roll-shaped polymer electrolyte membrane, a film unwinder for unwinding and releasing the roll-shaped release film coated with the catalyst electrode layers of the anode and the cathode at predetermined intervals, And a film rewinder for recovering a film on which the catalyst electrode layer is transferred, the apparatus comprising:
An upper and lower bonding rolls disposed on upper and lower sides of the path of the polymer electrolyte membrane and the release film and provided so as to be movable in at least one of the upper and lower directions and pressing the catalyst electrode layer on the upper and lower surfaces of the polymer electrolyte membrane,
A release bar provided on upper and lower sides of the advancing path on the advancing side of the upper and lower bonding rolls to peel off the release film; And
A position sensor installed on an entry side of the upper and lower bonding rolls to sense a position of the catalyst electrode layer;
Electrode assembly for a fuel cell. The method according to claim 1,
And an operating source that reciprocates at least one of the upper and lower bonding rolls in the vertical direction. The method according to claim 1,
Wherein the upper and lower bonding rolls have different cross-sectional diameters and are rotatable in opposite directions to each other. The method of claim 3,
Wherein one of the upper and lower bonding rolls has a sectional diameter of a large diameter portion and the other has a sectional diameter of a small diameter portion,
Wherein the upper and lower bonding rolls are rotatably disposed in opposite directions to each other. 5. The method of claim 4,
Wherein the release bar corresponding to the bonding roll of the large diameter portion of the upper and lower bonding rolls is disposed at a position distant from the release bar corresponding to the bonding roll of the small diameter portion with reference to the traveling direction of the release film. An apparatus for manufacturing an electrode assembly. 6. The method of claim 5,
Wherein the deformed bar corresponding to the joining roll of the small diameter portion is disposed at a distance shorter than the length between the catalyst electrode layers with respect to the center of the joining roll. 3. The method of claim 2,
And a controller for controlling operation of the film rewinder based on a sensing signal sensed by the position sensor and controlling operation of the operating source based on a traveling position of the polymer electrolyte membrane and the release film. And an electrode assembly. 8. The method of claim 7,
The upper and lower bonded rolls
Wherein the operation of the operating source by the controller releases the mutual pressing at the position between the catalyst electrode layers. Releasing the roll-shaped polymer electrolyte membrane and supplying it to a predetermined pathway;
Releasing the roll-shaped release film coated with the catalyst electrode layers of the anode and the cathode at predetermined intervals, and feeding the releasing film to the upper and lower sides of the polymer electrolyte membrane;
Detecting the position of the catalyst electrode layer on the entry side between the upper and lower bonding rolls into which the polymer electrolyte membrane and the release film enter, through a position sensor, and outputting the detection signal to the controller;
Applying a control signal to an operating source through a controller to press the bonding rolls when the catalyst electrode layer of the release film enters between the upper and lower bonding rolls with the polymer electrolyte membrane interposed therebetween;
And when a region between the catalyst electrode layers of the release film enters the bonding rolls with the polymer electrolyte membrane interposed therebetween, a control signal is applied to the operating source through the controller to release mutual bonding of the bonding rolls;
And aligning the catalyst electrode layer position of the release film through the controller according to a sensing signal sensed by the position sensor. 10. The method of claim 9,
Wherein the controller controls the rewinding speed of the film rewinder to align the position of the catalyst electrode layer. 10. The method of claim 9,
Wherein the release film is removed through a release bar while the catalyst electrode layer is laminated on at least one of upper and lower surfaces of the polymer electrolyte membrane through the upper and lower bonding rolls.

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