CN109473683B - Industrial mass production system and production method for fuel cell membrane electrode - Google Patents
Industrial mass production system and production method for fuel cell membrane electrode Download PDFInfo
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 58
- 239000000446 fuel Substances 0.000 title claims abstract description 28
- 210000000170 cell membrane Anatomy 0.000 title claims abstract description 21
- 230000007246 mechanism Effects 0.000 claims abstract description 216
- 239000012528 membrane Substances 0.000 claims abstract description 66
- 238000000576 coating method Methods 0.000 claims abstract description 47
- 239000011248 coating agent Substances 0.000 claims abstract description 45
- 238000001035 drying Methods 0.000 claims abstract description 41
- 238000009792 diffusion process Methods 0.000 claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 33
- 238000005520 cutting process Methods 0.000 claims abstract description 16
- 238000004537 pulping Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 239000003054 catalyst Substances 0.000 claims description 38
- 230000003197 catalytic effect Effects 0.000 claims description 38
- 239000002002 slurry Substances 0.000 claims description 20
- 238000007731 hot pressing Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 10
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- 230000009477 glass transition Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 210000004027 cell Anatomy 0.000 abstract description 6
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 2
- 238000003908 quality control method Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 239000000306 component Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000003487 electrochemical reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010023 transfer printing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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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
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
A fuel cell membrane electrode industrial mass production system and a production method thereof belong to the technical field of fuel cells. The cathode coating machine comprises an automatic unreeling mechanism, a cathode coating mechanism, a cathode drying mechanism, a cathode detection mechanism, an automatic reeling mechanism and a cathode pulping mechanism; the device comprises an anode automatic unreeling mechanism, a supporting film reeling mechanism, an anode coating mechanism, an anode drying mechanism, an isolating film unreeling mechanism, an anode detection mechanism, an automatic reeling mechanism and an anode pulping mechanism; the diffusion layer unreeling mechanism, the diffusion layer pretreatment mechanism and the cutting mechanism further comprise a hot press mechanism, a sealing mechanism and a finished product detection mechanism which are independently arranged. According to the industrial mass production system and the production method thereof, through industrial mass production and quality control of the production process, the consistency and the production efficiency of products are improved, the labor force is reduced, the production cost is reduced, and the commercialized and large-scale production of the membrane electrode is realized.
Description
Technical Field
The invention belongs to the technical field of fuel cells, and particularly relates to a fuel cell membrane electrode industrial mass production system and a production method thereof.
Background
At present, the storage battery industry such as lithium batteries, lead-acid batteries, nickel-hydrogen batteries, nickel-cadmium batteries and the like have great hidden dangers such as environmental protection, safety and the like, the requirements of people are difficult to meet at present in the technological development, and the development of novel substitute products is not delayed. A fuel cell is used as a power generation device for converting chemical energy in fuel and oxygen into electric energy in an electrochemical reaction mode without combustion under low temperature conditions. Is considered as an ultimate solution to the energy environmental crisis.
The membrane electrode is used as the core component of the fuel cell, is the place where multiphase substance transmission and electrochemical reaction occur in the fuel cell, and consists of a proton exchange membrane, a catalytic layer and a gas diffusion layer. The membrane electrode is divided into GDE (diffusion layer as substrate), CCM (proton membrane as substrate), ordered membrane electrode and the like according to different preparation processes of the catalytic layer, and the method for preparing the membrane electrode in the market at present mainly comprises CCM (proton membrane as substrate). The preparation method of the CCM method electrode is mainly divided into a direct coating method and a transfer printing method, wherein the transfer printing method is to coat catalyst slurry on other base materials and then transfer the catalyst slurry on a proton exchange membrane in a hot pressing mode to form a catalytic layer; the direct coating method is to mix the catalyst with organic solvent to form slurry and then directly coat the slurry onto the proton exchange membrane to form the catalytic layer.
The diffusion layer adjacent to the catalytic layer in the membrane electrode has the main function of meeting the transmission of reactant gas and product water and has high limiting current, and since the microporous layer is usually prepared on the diffusion layer, when the microporous layer and the CCM are hot pressed together, an interface exists between the microporous layer and the catalytic layer, and the interface is usually reserved with liquid water in the reaction process, so that the transmission of gas is influenced. The membrane electrode is used as a core component of the fuel cell, is mainly produced by a manual line at present, and has the defects of low production efficiency, high cost, poor product consistency and the like.
Disclosure of Invention
The invention aims to design and provide a technical scheme of a fuel cell membrane electrode industrial mass production system and a production method thereof, which can overcome the defects of the existing production process, realize automatic industrial mass production of membrane electrodes in a roll-to-roll direct coating mode, effectively control the problem of membrane surface swelling caused during coating, improve the consistency and production efficiency of products, reduce labor force and production cost and realize commercialized and large-scale production of membrane electrodes through industrial mass production and quality control of production processes.
The industrial mass production system of the fuel cell membrane electrode is characterized by comprising an automatic unreeling mechanism, a cathode coating mechanism, a cathode drying mechanism, a cathode detection mechanism and an automatic reeling mechanism which are sequentially matched and arranged on the same wire body, and further comprising a cathode pulping mechanism arranged outside the wire body;
the device also comprises an anode automatic unreeling mechanism, a supporting film reeling mechanism, an anode coating mechanism, an anode drying mechanism, an isolating film unreeling mechanism, an anode detection mechanism and an automatic reeling mechanism which are sequentially matched and arranged on the other wire body, and also comprises an anode pulping mechanism arranged outside the wire body;
finally, the device comprises a diffusion layer unreeling mechanism, a diffusion layer pretreatment mechanism and a cutting mechanism which are sequentially matched and arranged on a single wire body, and further comprises a hot pressing mechanism, a banding mechanism and a finished product detection mechanism which are independently arranged.
The industrial mass production system for the fuel cell membrane electrode is characterized in that an automatic waste material winding mechanism is arranged on the same wire body behind the cutting mechanism.
The production method of the fuel cell membrane electrode industrial mass production system is characterized by comprising the following steps of:
1) Coating a cathode catalyst slurry on one side of a proton exchange membrane, and drying the cathode catalyst slurry by a cathode drying mechanism to form a cathode catalyst layer ();
2) Stripping the support film on the other side, coating anode catalyst slurry on the other side of the proton exchange film, and drying by an anode drying mechanism to form an anode catalyst layer, namely a CCM component;
3) Cutting into pieces and performing hot-pressing joint with the piece-shaped diffusion layer () after the diffusion layer pretreatment mechanism through a hot-pressing mechanism to prepare a film-forming electrode MEA;
4) Finally, the qualified membrane electrode MEA is obtained through the edge sealing mechanism treatment and the finished product detection mechanism.
The production method of the fuel cell membrane electrode industrial mass production system is characterized by comprising the following steps:
an automatic unreeling mechanism is arranged in front of the cathode pulping mechanism in a matched mode, an automatic reeling mechanism is arranged behind the cathode detection mechanism in a matched mode, and the whole structure formed by the proton exchange membrane and the support membrane attached to one side enters the next station through the automatic unreeling mechanism; the cathode catalyst is prepared by a cathode pulping mechanism; the prepared cathode catalyst slurry is uniformly coated on the surface of the proton exchange membrane through a cathode coating mechanism and is provided with automatic detection equipment for real-time monitoring; forming a cathode catalytic layer (), after coating the surface of the proton exchange membrane, through a cathode drying mechanism, maintaining the cathode drying mechanism at a process set temperature, filling inert gas for protection, and detecting the quality of the formed catalytic layer through a cathode detecting mechanism; the proton exchange membrane with the prepared cathode catalytic layer is rolled and stored by an automatic rolling mechanism.
The production method of the fuel cell membrane electrode industrial mass production system is characterized by comprising the following steps:
the anode automatic unreeling mechanism automatically feeds raw materials with a cathode catalytic layer into the anode coating mechanism, and a supporting film reeling mechanism is arranged in front of the anode coating mechanism in a matched manner; before the anode catalytic layer is coated, the support film on the anode side is required to be stripped, and the stripped support film is rolled by a support film rolling mechanism; when preparing the anode catalytic layer, fixing a film area to be coated in a vacuum adsorption mode, and coating through an anode coating mechanism; the coated catalyst is dried by an anode drying mechanism to form an anode catalytic layer, and the anode catalytic layer is kept at the process set temperature by the anode drying mechanism and is filled with inert gas for protection, so that the composition of electrodes on two sides of the proton exchange membrane is finished, namely CCM; after the catalytic layers on the two sides are finished and pass through the anode detection mechanism, a layer of isolating film is covered by the isolating film unreeling mechanism before entering the automatic reeling mechanism; the order of coating the catalyst on both sides of the cathode and anode is to coat the cathode side first and then the anode side.
The production method of the fuel cell membrane electrode industrial mass production system is characterized by comprising the following steps:
the diffusion layer firstly passes through a pretreatment mechanism to form a microporous layer; the diffusion layer and the CCM are cut into pieces through a cutting mechanism, and the rest residual materials are collected through a waste automatic rolling mechanism; and stacking and positioning the cut diffusion layers and the CCM, combining by a hot pressing mechanism, and keeping the hot pressing temperature at the glass transition temperature of the catalytic layer and the process set pressure to bond the CCM and the diffusion layers on two sides of the cathode and the anode to form the membrane electrode MEA.
The industrial mass production system of the fuel cell membrane electrode and the production method thereof are characterized in that cathode catalyst slurry is coated on one side of a proton exchange membrane, a cathode catalyst layer is formed after drying and detection, then a catalyst is coated on the other side of the proton exchange membrane, an anode catalyst layer is formed after drying and detection, an MEA is formed after cutting and heat sealing with a diffusion layer, and finally the edge of the MEA is protected and sealed. The invention can not only well save the consumption of slurry, but also better realize automatic batch production, has simpler production process and higher production takt, and further meets the application requirements of future membrane electrodes.
Drawings
FIG. 1 is a schematic diagram of a system structure of a first production line of the present invention;
FIG. 2 is a schematic diagram of a system structure of a second production line of the present invention;
FIG. 3 is a schematic diagram of a system structure of a third production line according to the present invention;
FIG. 4 is a schematic diagram of the production process of the present invention;
FIG. 5 is a schematic view of the structure of the membrane electrode according to the present invention;
in the figure: 1-automatic unreeling mechanism, 2-cathode pulping mechanism, 3-cathode coating mechanism, 4-cathode drying mechanism, 5-cathode detection mechanism, 6-automatic reeling mechanism, 7-anode automatic unreeling mechanism, 8-support film reeling mechanism, 9-anode pulping mechanism, 10-anode coating mechanism, 11-anode drying mechanism, 12-isolation film unreeling mechanism, 13-anode detection mechanism, 14-automatic reeling mechanism, 15-diffusion layer unreeling mechanism, 16-diffusion layer pretreatment mechanism, 17-cutting mechanism, 18-waste automatic reeling mechanism, 19-hot press mechanism, 20-edge sealing mechanism and 21-finished product detection mechanism.
Detailed Description
The invention is further described below with reference to the drawings.
As shown in the figure, the industrial mass production system of the fuel cell membrane electrode comprises an automatic unreeling mechanism 1, a cathode coating mechanism 3, a cathode drying mechanism 4, a cathode detection mechanism 5 and an automatic reeling mechanism 6 which are sequentially matched and arranged on the same wire body, and also comprises a cathode pulping mechanism 2 arranged outside the wire body; the device also comprises an anode automatic unreeling mechanism 7, a supporting film reeling mechanism 8, an anode coating mechanism 10, an anode drying mechanism 11, an isolating film unreeling mechanism 12, an anode detection mechanism 13 and an automatic reeling mechanism 14 which are sequentially matched and arranged on the other wire body, and also comprises an anode pulping mechanism 9 arranged outside the wire body; finally, the device comprises a diffusion layer unreeling mechanism 15, a diffusion layer pretreatment mechanism 16 and a cutting mechanism 17 which are sequentially matched and arranged on a single wire body, and further comprises a hot pressing mechanism 19, a banding mechanism 20 and a finished product detection mechanism 21 which are independently arranged.
Further, an automatic scrap winding mechanism 18 is provided on the same wire body after the cutting mechanism 17.
The production method of the industrial mass production system for the fuel cell membrane electrode comprises the following steps:
1) Coating a cathode catalyst slurry on one side of a proton exchange membrane 22, and drying by a cathode drying mechanism 4 to form a cathode catalyst layer 24;
2) Stripping the support film 23 on the other side, coating anode catalyst slurry on the other side of the proton exchange membrane 22, and drying by the anode drying mechanism 11 to form an anode catalyst layer 25, namely a CCM27 component;
3) Then cutting into pieces and performing hot-press bonding with the piece-shaped diffusion layer 26 after passing through the diffusion layer pretreatment mechanism 16 through the hot-press mechanism 19 to prepare a membrane electrode MEA28;
4) Finally, the qualified membrane electrode MEA28 is obtained through the processing of the edge sealing mechanism 20 and the finished product detection mechanism 21.
Specifically, in the above step 1): an automatic unreeling mechanism 1 is arranged in front of the cathode pulping mechanism 2 in a matched manner, an automatic reeling mechanism 6 is arranged behind the cathode detection mechanism 5 in a matched manner, and the whole structure consisting of the proton exchange membrane 22 and a support membrane 23 attached to one side enters the next station through the automatic unreeling mechanism 1; the cathode catalyst is prepared by a cathode pulping mechanism 2; the prepared cathode catalyst slurry is uniformly coated on the surface of the proton exchange membrane 22 through a cathode coating mechanism 3 and is provided with automatic detection equipment for real-time monitoring; forming a cathode catalytic layer (24) through a cathode drying mechanism 4 after the surface of the proton exchange membrane 22 is coated, keeping the cathode drying mechanism 4 at a process set temperature, filling inert gas for protection, and detecting the quality of the formed catalytic layer through a cathode detecting mechanism 5; the proton exchange membrane 22 with the cathode catalytic layer 24 is wound and stored by the automatic winding mechanism 6.
Specifically, in the above step 2: the anode automatic unreeling mechanism 7 automatically feeds raw materials with a cathode catalytic layer into the anode coating mechanism 10, and a supporting film reeling mechanism 8 is matched and arranged in front of the anode coating mechanism 10; before the anode catalytic layer 25 is coated, the support film 23 on the anode side needs to be peeled off, and the peeled support film 23 is rolled by the support film rolling mechanism 8; in preparing the anode catalytic layer 25, fixing the film area to be coated by vacuum adsorption, and coating by the anode coating mechanism 10; the coated catalyst is dried by an anode drying mechanism 11 to form an anode catalytic layer 25, and the anode catalytic layer is kept at the process set temperature by the anode drying mechanism 11 and is filled with inert gas for protection, so that the composition of electrodes on two sides of the proton exchange membrane 22 is completed, namely CCM27; after the catalytic layers on the two sides are completed and pass through the anode detection mechanism 13, a layer of isolating film is covered by the isolating film unreeling mechanism 12 before entering the automatic reeling mechanism 14; the order of coating the catalyst on both sides of the cathode and anode is to coat the cathode side first and then the anode side.
Specifically, in the above step 3): the diffusion layer 26 is first passed through the pretreatment mechanism 16 to form a microporous layer; the diffusion layer 26 and the CCM27 are cut into pieces by a cutting mechanism 17, and the rest materials are collected by a waste automatic rolling mechanism 18; stacking and positioning the cut diffusion layers 26 and CCM27, combining by a hot pressing mechanism 19, and keeping the hot pressing temperature at the glass transition temperature of the catalytic layer and the process set pressure to bond the CCM27 and the diffusion layers 26 on the two sides of the anode and the cathode to form a membrane electrode MEA28; to protect the MEA28 assembly, the entire MEA28 assembly needs to be sealed by the seal mechanism 20; the prepared membrane electrode 28 is subjected to multiple quality tests by the automatic detection mechanism 21.
The invention has the following advantages:
1. considering that the proton exchange membrane 22 itself has a support membrane 23, and that one side has sufficient physical strength, direct coating does not cause great deformation of the proton exchange membrane 22.
2. The anode catalytic layer is coated on the proton exchange membrane 22, so that the production equipment is simple, the efficiency is higher, and the obtained anode catalytic layer can be thinner and has better performance.
3. The method can be used for preparing the membrane electrode in a roll-to-roll mode.
4. By adopting automatic control of CCM production quality, on-line monitoring and control of coating state, detection of various performance indexes and tracking of data, the quality of products can be better controlled.
5. The consistency of products is ensured by automatic control and mechanical accurate positioning.
In addition to the preferred process described above, various changes and modifications may be made by one skilled in the art in light of the present disclosure without departing from the spirit of the invention and are intended to be within the scope of the present disclosure as defined in the appended claims.
Claims (6)
1. The industrial mass production system of the fuel cell membrane electrode is characterized by comprising an automatic unreeling mechanism (1), a cathode coating mechanism (3), a cathode drying mechanism (4), a cathode detection mechanism (5) and an automatic reeling mechanism (6) which are sequentially matched and arranged on the same wire body, and further comprising a cathode pulping mechanism (2) arranged outside the wire body, wherein the cathode coating mechanism (3), the cathode drying mechanism (4), the cathode detection mechanism (5) and the automatic reeling mechanism are used for coating cathode catalyst slurry on one side of a proton exchange membrane (22), and the proton exchange membrane (22) is an integral structure formed by a support membrane (23) attached to the other side of the proton exchange membrane;
the device also comprises an anode automatic unreeling mechanism (7), a supporting film reeling mechanism (8) for reeling and stripping the supporting film (23), an anode coating mechanism (10), an anode drying mechanism (11), an isolating film unreeling mechanism (12), an anode detecting mechanism (13) and an automatic reeling mechanism (14) which are sequentially matched with each other and arranged on the other wire body, and also comprises an anode pulping mechanism (9) arranged outside the wire body, wherein the anode coating mechanism is used for coating anode catalyst slurry on a film area fixed in a vacuum adsorption mode;
finally, the device comprises a diffusion layer unreeling mechanism (15), a diffusion layer pretreatment mechanism (16) and a cutting mechanism (17) which are sequentially matched and arranged on a single wire body, and further comprises a hot pressing mechanism (19), a banding mechanism (20) and a finished product detection mechanism (21) which are independently arranged;
the production method of the fuel cell membrane electrode industrial mass production system comprises the following steps:
1) coating cathode catalyst slurry on one side of a proton exchange membrane (22), drying by a cathode drying mechanism (4) to form a cathode catalyst layer (24), wherein the proton exchange membrane (22) is an integral structure formed by attaching a support membrane (23) on the other side;
2) Stripping the support film (23) on the other side, coating anode catalyst slurry on the other side of the proton exchange film (22), and drying by an anode drying mechanism (11) to form an anode catalyst layer (25), namely a CCM (27) component;
3) Cutting into pieces and performing hot-pressing joint with a piece-shaped diffusion layer (26) after passing through a diffusion layer pretreatment mechanism (16) through a hot-pressing mechanism (19) to prepare a film-forming electrode MEA (28);
4) Finally, the qualified membrane electrode MEA (28) is obtained through the treatment of the edge sealing mechanism (20) and the finished product detection mechanism (21).
2. An industrial mass production system for fuel cell membrane electrode according to claim 1, wherein the automatic scrap winding mechanism (18) is arranged on the same line body after the cutting mechanism (17).
3. A production method of a fuel cell membrane electrode industrial mass production system using the method of claim 1, characterized by comprising the steps of:
1) coating cathode catalyst slurry on one side of a proton exchange membrane (22), drying by a cathode drying mechanism (4) to form a cathode catalyst layer (24), wherein the proton exchange membrane (22) is an integral structure formed by attaching a support membrane (23) on the other side;
2) Stripping the support film (23) on the other side, coating anode catalyst slurry on the other side of the proton exchange film (22), and drying by an anode drying mechanism (11) to form an anode catalyst layer (25), namely a CCM (27) component;
3) Cutting into pieces and performing hot-pressing joint with a piece-shaped diffusion layer (26) after passing through a diffusion layer pretreatment mechanism (16) through a hot-pressing mechanism (19) to prepare a film-forming electrode MEA (28);
4) Finally, the qualified membrane electrode MEA (28) is obtained through the treatment of the edge sealing mechanism (20) and the finished product detection mechanism (21);
in step 2):
the anode automatic unreeling mechanism (7) automatically feeds the proton exchange membrane (22) with the cathode catalytic layer into the anode coating mechanism (10), and a supporting membrane reeling mechanism (8) is arranged in front of the anode coating mechanism (10) in a matching way; before the anode catalytic layer (25) is coated, the support film (23) on the anode side is required to be peeled off, and the peeled support film (23) is rolled up through a support film rolling mechanism (8); in the preparation of the anode catalytic layer (25), the film area to be coated is fixed by vacuum adsorption, and is coated by an anode coating mechanism (10).
4. A method for producing a fuel cell membrane electrode industrial mass production system according to claim 3, wherein in step 1):
an automatic unreeling mechanism (1) is arranged in front of the cathode pulping mechanism (2), an automatic reeling mechanism (6) is arranged behind the cathode detection mechanism (5), and the whole structure consisting of the proton exchange membrane (22) and a support membrane (23) attached to one side enters the next station through the automatic unreeling mechanism (1); the cathode catalyst is prepared by a cathode pulping mechanism (2); the prepared cathode catalyst slurry is uniformly coated on the surface of a proton exchange membrane (22) through a cathode coating mechanism (3), and is provided with automatic detection equipment for real-time monitoring; forming a cathode catalytic layer (24) through a cathode drying mechanism (4) after the surface of the proton exchange membrane (22) is coated, keeping the cathode drying mechanism (4) at a process set temperature, filling inert gas for protection, and detecting the quality of the formed catalytic layer through a cathode detection mechanism (5); the proton exchange membrane (22) with the cathode catalytic layer (24) is rolled and stored by an automatic rolling mechanism (6).
5. A method for producing a fuel cell membrane electrode industrial mass production system according to claim 3, wherein in step 2):
the coated catalyst is dried by an anode drying mechanism (11) to form an anode catalytic layer (25), and the anode catalytic layer is kept at the process set temperature by the anode drying mechanism (11) and is filled with inert gas for protection, so that the composition of electrodes on two sides of a proton exchange membrane (22) is finished, namely CCM (27); after the catalytic layers on the two sides are completed and pass through the anode detection mechanism (13), a layer of isolating film is covered by the isolating film unreeling mechanism (12) before entering the automatic reeling mechanism (14); the order of coating the catalyst on both sides of the cathode and anode is to coat the cathode side first and then the anode side.
6. A method for producing a fuel cell membrane electrode industrial mass production system according to claim 3, wherein in step 3):
the diffusion layer (26) firstly passes through the pretreatment mechanism (16) to form a microporous layer; the diffusion layer (26) and the CCM (27) are cut into pieces through a cutting mechanism (17), and the rest materials are collected through a waste automatic winding mechanism (18); and stacking and positioning the cut diffusion layers (26) and the CCM (27), combining the two diffusion layers by a hot pressing mechanism (19), and keeping the hot pressing temperature at the glass transition temperature of the catalytic layer and the process set pressure to bond the CCM (27) and the diffusion layers (26) on the two sides of the cathode and the anode to form the membrane electrode MEA (28).
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| CN110323474A (en) * | 2019-07-15 | 2019-10-11 | 无锡先导智能装备股份有限公司 | Membrane electrode production equipment |
| CN110816016A (en) * | 2019-09-30 | 2020-02-21 | 浙江巨化技术中心有限公司 | Composite proton membrane production device for hydrogen fuel cell |
| CN110649298B (en) * | 2019-10-01 | 2023-10-31 | 深圳市世椿智能装备股份有限公司 | Preparation system and preparation method of membrane electrode assembly of hydrogen fuel cell |
| CN111146450B (en) * | 2019-12-26 | 2020-12-22 | 一汽解放汽车有限公司 | Device and method for continuously preparing gas diffusion layer of fuel cell |
| CN111082110A (en) * | 2019-12-27 | 2020-04-28 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Method and equipment for manufacturing membrane electrode of fuel cell |
| CN111755724B (en) * | 2020-06-01 | 2021-10-22 | 无锡先导智能装备股份有限公司 | Fuel cell membrane electrode production equipment |
| CN112103544B (en) * | 2020-10-26 | 2021-10-22 | 速博达(深圳)自动化有限公司 | Automatic membrane electrode assembling process equipment |
| CN112531188A (en) * | 2020-12-08 | 2021-03-19 | 安徽枡水新能源科技有限公司 | Preparation method of fuel cell membrane electrode |
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