CN110380064B - Membrane electrode assembly manufacturing method and apparatus - Google Patents
Membrane electrode assembly manufacturing method and apparatus Download PDFInfo
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- CN110380064B CN110380064B CN201810334047.XA CN201810334047A CN110380064B CN 110380064 B CN110380064 B CN 110380064B CN 201810334047 A CN201810334047 A CN 201810334047A CN 110380064 B CN110380064 B CN 110380064B
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- electrode material
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- 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
- H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
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- 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]
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- 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
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- 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
Abstract
The invention discloses a membrane electrode assembly manufacturing method, which comprises the steps of arranging first electrode materials on a first transfer membrane at intervals or directly obtaining the first transfer membrane with a single first electrode material; pressing one surface of the first transfer membrane with the first electrode material and one surface of the proton membrane; obtaining a second transfer film with a single second electrode material; detecting position parameters of a first electrode material on the first transfer film and a second electrode material on the second transfer film; attaching one surface of the second transfer membrane with the second electrode material to the other surface of the proton membrane so as to align the first electrode material and the second electrode material on two sides of the proton membrane; and pressing the proton membrane and the first electrode material and the second electrode material on two sides of the proton membrane. In addition, a membrane electrode assembly manufacturing apparatus is also disclosed. The invention effectively improves the alignment degree of the membrane electrode under the condition of ensuring the production efficiency.
Description
Technical Field
The invention relates to a method and a device for manufacturing a membrane electrode assembly, and belongs to the field of fuel cells.
Background
The membrane electrode assembly is a core component of the proton membrane fuel cell and comprises a proton membrane and two electrodes positioned on two sides of the proton membrane, the coincidence degree requirement of the two electrodes on the two sides of the proton membrane is very high, and the quality of the membrane electrode assembly is influenced by unqualified coincidence degree.
Disclosure of Invention
The invention aims to provide a method and a device for manufacturing a membrane electrode assembly, which can realize the accurate superposition of two electrodes at two sides of a proton membrane and improve the quality of the membrane electrode assembly.
The above object of the present invention can be achieved by the following technical solutions:
a membrane electrode assembly manufacturing method comprising:
s1, arranging first electrode materials on the first transfer film at intervals or directly obtaining the first transfer film with a single first electrode material;
s2, pressing one surface of the first transfer film with the first electrode material with one surface of the proton film;
s3, acquiring a second transfer film with a single second electrode material;
s4, attaching one surface of the second transfer membrane with the second electrode material to the other surface of the proton membrane, so that the first electrode material and the second electrode material on two sides of the proton membrane are aligned;
s5, pressing the proton membrane and the first electrode material and the second electrode material on two sides of the proton membrane;
and S6, peeling the first transfer film from the first electrode material, and peeling the second transfer film from the second electrode material.
In a preferred embodiment of the present invention, S4 further includes disposing a process membrane on the second transfer membrane with the single second electrode material, and laminating the process membrane with the second transfer membrane and proton membranes at both ends of the second transfer membrane.
In a preferred embodiment of the present invention, if the first transfer film with the single first electrode material is directly obtained, S2 further includes disposing a process film on the first transfer film with the single first electrode material, and laminating the process film with the first transfer film and the proton films at both ends of the first transfer film.
In a preferred embodiment of the present invention, before S4, position parameters of the first electrode material on the first transfer film and the second electrode material on the second transfer film are detected.
In a preferred embodiment of the present invention, the positions of the first electrode material on the first transfer film and the second electrode material on the second transfer film are detected by photographing with an industrial camera.
In a preferred embodiment of the invention, the first electrode material is an anode or cathode material and the second electrode material is a cathode or anode material, respectively.
In a preferred embodiment of the present invention, the spaced-apart disposing of the first electrode material on the first transfer film includes: the first electrode material is coated on the first transfer film at intervals.
In a preferred embodiment of the present invention, S4 includes: and controlling the manipulator to grab the second transfer membrane according to the position parameters of the first electrode material on the first transfer membrane and the second electrode material on the second transfer membrane so that one surface of the second transfer membrane with the second electrode material is attached to the other surface of the proton membrane.
In a preferred embodiment of the present invention, the robot arm presses one end of the second transfer film, and after the other end of the second transfer film is pressed against the proton membrane, the robot arm releases the one end of the second transfer film.
In another aspect, the present invention further provides a membrane electrode assembly manufacturing apparatus, including a first pressing device, a second pressing device, a position detecting device, and a bonding device, where the first pressing device is capable of pressing one side of the first transfer membrane with the first electrode material and one side of the proton membrane; the position detection device can detect position parameters of the first electrode material on the first transfer film and the second electrode material on the second transfer film; the laminating device can laminate one surface of the second transfer membrane with the second electrode material with the other surface of the proton membrane according to the position parameters, so that the first electrode material and the second electrode material on two sides of the proton membrane are aligned; the second pressing device can press the proton membrane and the first electrode material and the second electrode material on two sides of the proton membrane.
In a preferred embodiment of the present invention, the first laminating device is a counter-roll device, and the second laminating device is a counter-roll device.
In a preferred embodiment of the present invention, the membrane electrode assembly manufacturing apparatus further includes a pressing device disposed upstream of the second pressing device for pressing the second transfer membrane, the proton membrane, and the first transfer membrane against the first electrode material and the second electrode material located on both sides of the proton membrane from being displaced.
The membrane electrode assembly manufacturing method and the membrane electrode assembly manufacturing device have the advantages that:
1. the first electrode material arranged on the first transfer film is positioned, and then the second electrode material is aligned with the first electrode material, so that the alignment degree of the membrane electrode is effectively improved under the condition of ensuring the production efficiency.
2. The first electrode material can be prevented from being displaced by laminating the proton membrane and the spacer region of the first transfer membrane.
3. After the second electrode material and the first electrode material are aligned, if the lamination process is not immediately performed, the process film is provided to pre-position the second electrode material, which can prevent the second electrode material from being displaced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view showing a process for producing a membrane electrode assembly according to an embodiment.
FIG. 2 is a schematic view of a manufacturing apparatus of a membrane electrode assembly in the example.
FIG. 3 is a schematic view showing another manufacturing process of the membrane electrode assembly in the example.
The figures of the above drawings are numbered: the device comprises a first transfer film 20, a first electrode material 10, a proton film 30, a second electrode material 40, a second transfer film 50, a process film 60, a first laminating device 110, a second laminating device 120 and a pressing device 130.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and based on the embodiments of the present invention, other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, left, right, upper, lower", "lateral, vertical, horizontal", top, bottom ", etc. are usually based on the orientation or positional relationship shown in the drawings only for the convenience of description and simplicity of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present invention. The terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
Referring to fig. 1 and 3, an embodiment of the present invention provides a membrane electrode assembly manufacturing method including the steps of:
s1, disposing the first electrode material 10 on the first transfer film 20 at intervals or directly obtaining the first transfer film 20 with the single first electrode material 10; the interval arrangement is preferably equidistant interval arrangement; the method of disposing the first electrode material 10 on the first transfer film 20 at intervals may be coating; however, such a spacing arrangement easily causes a spacing inconsistency, such as coating easily causes coating unevenness, and therefore the first transfer film 20 with a single first electrode material 10 can be directly obtained.
S2, pressing one surface of the first transfer film 20 with the first electrode material 10 and one surface of the proton film 30; the pressing in this step may be that the first electrode material 10 and the proton membrane 30 are pressed together, so as to realize the pre-positioning of the first electrode material 10 on one surface of the proton membrane 30, and if the first electrode material 10 is arranged on the first transfer membrane 20 at intervals in S1, the first transfer membranes 20 at the two ends of the first electrode material 10 are also pressed together with the proton membrane 30, so as to prevent the pre-positioned first electrode material 10 from shifting; the pressing in this step may be directly to laminate the first electrode material 10 and the proton membrane 30.
S3, obtaining the second transfer film 50 with the single second electrode material 40; the second transfer film 50 with the single second electrode material 40 may be cut from the second transfer film 50 with the second electrode material 40 disposed at intervals.
S4, the side of the second transfer membrane 50 with the second electrode material 40 is attached to the other side of the proton membrane 30, so that the first electrode material 10 and the second electrode material 40 on both sides of the proton membrane 30 are aligned.
S5, pressing the proton membrane 30 and the first electrode material 10 and the second electrode material 40 on two sides of the proton membrane 30; if the pre-positioning of the first electrode material 10 on one side of the proton membrane 30 is realized in S2, the lamination of the first electrode material 10 and the proton membrane 30 and the lamination of the second electrode material 40 and the proton membrane 30 are simultaneously realized in this step, so that the first electrode material 10 and the second electrode material 40 are laminated with the proton membrane 30 under the same working condition, and the alignment degree can be better ensured; if the lamination of the first electrode material 10 and the proton membrane 30 is directly achieved in S2, this step is only required to achieve the lamination of the second electrode material 40 and the proton membrane 30.
S6, the first transfer film 20 is peeled from the first electrode material 10, and the second transfer film 50 is peeled from the second electrode material 40. If the first transfer film 20 is a continuous film, it may be wound up after peeling.
The first electrode material 10 is an anode or cathode material, and the second electrode material 40 is a cathode or anode material.
In the manufacturing method of the membrane electrode assembly of the embodiment, the first electrode material 10 disposed on the first transfer film 20 is positioned, and then the second electrode material 40 is aligned with the first electrode material 10, so that the alignment degree of the membrane electrode is effectively improved under the condition of ensuring the production efficiency.
It should be noted that the pressing includes lamination, and the pressing may be temporary connection, and the release of the temporary connection is simple and will not damage the material; or may be a strong connection (lamination) and the removal of the lamination may be laborious or may damage the material.
In a preferred embodiment of the present invention, S4 further includes disposing the process membrane 60 on the second transfer membrane 50 with the single second electrode material 40, and pressing the process membrane 60 with the second transfer membrane 50 and the proton membranes 30 at both ends of the second transfer membrane 50. After the second electrode material 40 and the first electrode material 10 are aligned, if not immediately before the lamination process, the process film 60 may be provided to pre-position the second electrode material 40 to prevent the second electrode material 40 from shifting. When peeling the second transfer film 50, the process film 60 needs to be peeled first. Further, a robot arm may be used to press one end of the second transfer membrane 50, and after the other ends of the process membrane 60 and the second transfer membrane 50 are pressed against the proton membrane 30, the robot arm releases one end of the second transfer membrane 50.
In a preferred embodiment of the present invention, if directly obtaining the first transfer film 20 with the single first electrode material 10, S2 further includes disposing the process film 60 on the first transfer film 20 with the single first electrode material 10, pressing the process film 60 against the first transfer film 20 and the proton films 30 at both ends of the first transfer film 20, and pre-positioning the first electrode material 10 by disposing the process film 60 to prevent the first electrode material 10 from being displaced.
In a preferred embodiment of the present invention, before S4, the positional parameters of the first electrode material 10 on the first transfer film 20 and the second electrode material 40 on the second transfer film 50 are detected. The positions of the first electrode material 10 on the first transfer film 20 and the second electrode material 40 on the second transfer film 50 are preferably detected by photographing with an industrial camera (which may be a CCD imaging camera). And the control device (which can be an industrial personal computer) processes the photographing data to generate the position parameters. S4 includes: and controlling the manipulator to grab the second transfer membrane 50 according to the position parameters of the first electrode material 10 on the first transfer membrane 20 and the second electrode material 40 on the second transfer membrane 50, so that the side, with the second electrode material 40, of the second transfer membrane 50 is attached to the other side of the proton membrane 30. One end of the second transfer membrane 50 may be pressed by a robot arm, and after the other end of the second transfer membrane 50 is pressed against the proton membrane 30, the robot arm releases one end of the second transfer membrane 50.
On the other hand, as shown in fig. 2, an embodiment of the present invention further provides a membrane electrode assembly manufacturing apparatus, which includes a first pressing device 110, a second pressing device 120, a position detecting device (not shown) and a bonding device (not shown), where the first pressing device is capable of pressing the side of the first transfer membrane 20 with the first electrode material 10 and the side of the proton membrane 30; the position detection means is capable of detecting position parameters of the first electrode material 10 on the first transfer film 20 and the second electrode material 40 on the second transfer film 50; the attaching device can attach one surface of the second transfer membrane 50 with the second electrode material 40 to the other surface of the proton membrane 30 according to the position parameters, so that the first electrode material 10 and the second electrode material 40 on two sides of the proton membrane 30 are aligned; the second pressing device can press the proton membrane 30 and the first electrode material 10 and the second electrode material 40 on both sides of the proton membrane 30.
In the membrane electrode assembly manufacturing apparatus of this embodiment, the first pressing device 110 first performs pre-positioning on the first electrode material 10 disposed on the first transfer film 20, the attaching device aligns the second electrode material 40 with the first electrode material 10, and then the second pressing device 120 is adopted to perform pressing on the first electrode material 10 and the second electrode material 40 on both sides of the proton film 30 and the proton film 30, so that the alignment degree of the membrane electrode is effectively improved under the condition of ensuring the production efficiency.
Further, the first pressing device 110 is a pair roller device, and may be a single roller hot pressing device or a two roller hot pressing device; the second pressing device 120 is a pair roller device, and may be a single roller hot pressing device or a two roller hot pressing device.
Further, the membrane electrode assembly manufacturing apparatus further includes a pressing device disposed upstream of the second pressing device 120, for pressing the second transfer membrane 50, the proton membrane 30, and the first transfer membrane 20, and preventing the first electrode material 10 and the second electrode material 40 located at both sides of the proton membrane 30 from being displaced.
If the process membrane is disposed to prevent the second electrode material 40 from being displaced, the compressing means is disposed upstream of the second pressing means for compressing the process membrane 60, the second transfer membrane 50, the proton membrane 30, and the first transfer membrane 20 to prevent the first electrode material 10 and the second electrode material 40 located at both sides of the proton membrane 30 from being displaced.
Further, the pressing device may also be disposed upstream of the first pressing device 110, and is configured to press the first transfer membrane 20 and the proton membrane 30, so as to prevent the first electrode material 10 on the side of the proton membrane 30 from being displaced.
Of course, the pressing means may be provided both upstream of the second stitching device 120 and upstream of the first stitching device 110.
The working process of a preferred embodiment of the invention is as follows: the proton membrane 30 sequentially passes through a first pressing device 110, a pressing device 130 and a second pressing device 120 after being unreeled, a first electrode material 10 is arranged on a first transfer membrane 20 at intervals, the first transfer membrane 20 is inserted into the first pressing device 110, the first pressing device 110 presses one surface of the first transfer membrane 20 with the first electrode material 10 and one surface of the proton membrane 30 to pre-position the first electrode material 10, the pressed first transfer membrane 20 and the proton membrane 30 are transmitted into the pressing device 130, an industrial camera is used for photographing and detecting the positions of the first electrode material 10 on the first transfer membrane 20 and the second electrode material 40 on the second transfer membrane 50, a control device processes photographing data to generate a position parameter, a manipulator (equivalent to a pasting device) grasps the second transfer membrane 50 according to the position parameter to enable one surface of the second transfer membrane 50 with the second electrode material 40 to be pasted with the other surface of the proton membrane 30, simultaneously aligning the first electrode material 10 and the second electrode material 40 on two sides of the proton membrane 30, inserting the process membrane 60 into the pressing device 130 to make the process membrane 60 fit the second transfer membrane 50, pressing the proton membrane 30, the first transfer membrane 20, the second transfer membrane 50 and the process membrane 60 together by the pressing device 130 (the pressing is only to press the multiple layers of materials together to achieve the purpose of preventing the multiple layers of materials from sliding relatively), then putting the pressed materials together into the second pressing device 120 to be laminated, after the lamination is completed, peeling the process membrane 60, the first transfer membrane 20 and the second transfer membrane 50 to form a continuously produced membrane electrode assembly, and cutting the proton membrane 30 to obtain a single membrane electrode assembly.
While the invention has been described with reference to specific embodiments, it will be apparent to those skilled in the art that these descriptions are illustrative and not intended to limit the scope of the invention. Various modifications and alterations of this invention will become apparent to those skilled in the art based upon the spirit and principles of this invention, and such modifications and alterations are also within the scope of this invention.
Claims (9)
1. A membrane electrode assembly manufacturing method comprising:
s1, arranging first electrode materials on the first transfer film at intervals or directly obtaining the first transfer film with a single first electrode material;
s2, pressing one surface of the first transfer film with the first electrode material with one surface of the proton film;
s3, acquiring a second transfer film with a single second electrode material;
s4, attaching one surface of the second transfer membrane with the second electrode material to the other surface of the proton membrane, so that the first electrode material and the second electrode material on two sides of the proton membrane are aligned; when the proton membrane and the first electrode material and the second electrode material on both sides of the proton membrane need to be laminated, steps S5, S6 are executed;
s5, pressing the proton membrane and the first electrode material and the second electrode material on two sides of the proton membrane;
s6, peeling the first transfer film from the first electrode material, and peeling the second transfer film from the second electrode material;
the step S4 further includes: when the proton membrane and the first electrode material and the second electrode material on two sides of the proton membrane are not required to be pressed, the process membrane is arranged on the second transfer membrane with the single second electrode material, and the process membrane, the second transfer membrane and the proton membrane at two ends of the second transfer membrane are pressed.
2. The membrane electrode assembly manufacturing method according to claim 1, wherein if the first transfer film with the single first electrode material is directly obtained, S2 further comprises disposing a process film on the first transfer film with the single first electrode material, and laminating the process film with the first transfer film and proton films at both ends of the first transfer film.
3. The membrane electrode assembly manufacturing method according to claim 2, wherein position parameters of the first electrode material on the first transfer film and the second electrode material on the second transfer film are detected before S4.
4. The manufacturing method of a membrane electrode assembly according to claim 3, wherein the positions of the first electrode material on the first transfer film and the second electrode material on the second transfer film are detected by photographing with an industrial camera.
5. The membrane electrode assembly manufacturing method according to claim 1, wherein: the first electrode material is an anode material or a cathode material, and the second electrode material is a cathode material or an anode material correspondingly.
6. The membrane electrode assembly manufacturing method according to claim 1, wherein the spacing of the first electrode material on the first transfer film 20 includes: the first electrode material is coated on the first transfer film at intervals.
7. A membrane electrode assembly manufacturing apparatus characterized in that: the device comprises a first pressing device, a second pressing device, a position detection device, a laminating device and a pressing device, wherein the first pressing device can press one surface of a first transfer film, which is provided with a first electrode material, with one surface of a proton film; the position detection device can detect position parameters of the first electrode material on the first transfer film and the second electrode material on the second transfer film; the laminating device can laminate one surface of the second transfer membrane with the second electrode material with the other surface of the proton membrane according to the position parameters, so that the first electrode material and the second electrode material on two sides of the proton membrane are aligned; the second pressing device can press the proton membrane and the first electrode material and the second electrode material on two sides of the proton membrane; the pressing device is used for pressing the second transfer membrane, the proton membrane, the first transfer membrane and the process membrane, and preventing the first electrode material and the second electrode material which are positioned on two sides of the proton membrane from shifting.
8. The membrane electrode assembly manufacturing apparatus according to claim 7, wherein: the first pressing device is a pair roller device, and the second pressing device is a pair roller device.
9. The membrane electrode assembly manufacturing apparatus according to claim 7 or 8, wherein: the pressing device is arranged at the upstream of the second pressing device.
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Effective date of registration: 20220302 Address after: 214161 No. 12, Huanzhen North Road, Hudai Town, Binhu District, Wuxi City, Jiangsu Province Patentee after: Jiangsu hydrogen guide intelligent equipment Co.,Ltd. Address before: No.20 Xinxi Road, national high tech Industrial Development Zone, Wuxi City, Jiangsu Province Patentee before: WUXI LEAD INTELLIGENT EQUIPMENT Co.,Ltd. |