LU101708B1 - Flexible proton exchange membrane fuel cell plate and preparation method thereof - Google Patents
Flexible proton exchange membrane fuel cell plate and preparation method thereof Download PDFInfo
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- LU101708B1 LU101708B1 LU101708A LU101708A LU101708B1 LU 101708 B1 LU101708 B1 LU 101708B1 LU 101708 A LU101708 A LU 101708A LU 101708 A LU101708 A LU 101708A LU 101708 B1 LU101708 B1 LU 101708B1
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- fuel cell
- exchange membrane
- region structure
- arrays
- membrane fuel
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- 239000000446 fuel Substances 0.000 title claims abstract description 45
- 239000012528 membrane Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 238000003491 array Methods 0.000 claims abstract description 41
- 238000009826 distribution Methods 0.000 claims abstract description 32
- 239000001257 hydrogen Substances 0.000 claims abstract description 31
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 31
- 229920001940 conductive polymer Polymers 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001868 water Inorganic materials 0.000 claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 24
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 239000002861 polymer material Substances 0.000 claims abstract description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 238000000576 coating method Methods 0.000 claims description 25
- 239000011248 coating agent Substances 0.000 claims description 18
- 239000010931 gold Substances 0.000 claims description 14
- 229910052737 gold Inorganic materials 0.000 claims description 14
- 238000005260 corrosion Methods 0.000 claims description 13
- 230000007797 corrosion Effects 0.000 claims description 13
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- 238000004049 embossing Methods 0.000 claims description 6
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 239000002041 carbon nanotube Substances 0.000 description 4
- 229910021393 carbon nanotube Inorganic materials 0.000 description 4
- 150000002431 hydrogen Chemical class 0.000 description 4
- -1 hydrogen ions Chemical class 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229920000144 PEDOT:PSS Polymers 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000005543 nano-size silicon particle Substances 0.000 description 2
- 239000002121 nanofiber Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000009987 spinning Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 230000036647 reaction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 150000003376 silicon Chemical class 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0221—Organic resins; Organic polymers
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0206—Metals or alloys
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0204—Non-porous and characterised by the material
- H01M8/0223—Composites
- H01M8/0228—Composites in the form of layered or coated products
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
-
- 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
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0258—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant
- H01M8/026—Collectors; Separators, e.g. bipolar separators; Interconnectors characterised by the configuration of channels, e.g. by the flow field of the reactant or coolant characterised by grooves, e.g. their pitch or depth
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M2008/1095—Fuel cells with polymeric electrolytes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fuel Cell (AREA)
Abstract
The present disclosure proposes a flexible proton exchange membrane fuel cell plate and a preparation method thereof. The flexible proton exchange membrane fuel cell plate comprises a conductive polymer material plate, wherein the front and back surfaces of the conductive polymer material plate are respectively embossed with distribution region structure arrays and a channel region structure array by using a roll-to-roll double-sided rolling process; the channel region structure array is in the middle of the surface of the conductive polymer material plate, and the distribution region structure arrays are symmetrically arranged on two sides of the channel region structure array; one side of the conductive polymer material plate near one of the distribution region structure arrays is provided with a hydrogen inlet, a water inlet and an oxygen inlet respectively; and the other opposite side of the conductive polymer material plate near the other distribution region structure array is provided with a hydrogen outlet, a water outlet and an oxygen outlet respectively. The flexible proton exchange membrane fuel cell plate based on a conductive polymer has the advantages of light weight, foldability, bendability and the like, and is very suitable for supplying energy to flexible electronic devices.
Description
FLEXIBLE PROTON EXCHANGE MEMBRANE FUEL CELL PLATE AND 10101708 | PREPARATION METHOD THEREOF | Field of the Invention ] The present disclosure relates to the technical field of fuel cells, and in particular, to a flexible : proton exchange membrane fuel cell plate and a preparation method thereof. ] Background of the Invention ' Flexible electronics is an emerging electronic technology in which organic/inorganic material | electronic devices are manufactured on flexible plastic substrates, and has wide application : prospects in the fields of information, energy, medical, national defense, etc, such as flexible : electronic displays, organic light-emitting diodes (OLEDs), flexible wearable electronics, thin-film | solar cells, and flexible radio frequency identification (RFID). Flexible electronic products are | bendable, so core components need to be bendable, such as flexible batteries and flexible circuits. } Chinese patent CN 109713376 A discloses a flexible battery and a preparation method thereof. The ! flexible battery body includes an electrolyte, an electrode assembly, and an outer packaging film for ; packaging the electrolyte and the electrode assembly. The flexible battery generates electricity F through the electrolyte. 7 Chinese patent CN 109524648 A discloses a porous carbon nano-tube flexible battery material | containing nano-silicon and a preparation method thereof. Polyacrylonitrile, a pore-forming agent ] and surface-modified silicon source particles are added to an organic solvent, and heated and stirred | for ultrasonic mixing and uniform dispersion to obtain a spinning slurry, the spinning slurry is | electro-statically spun to prepare a nano-fiber film with oriented fibers, then the nano-fiber film is | pre-oxidized and carbonized in an inert atmosphere to obtain a porous carbon nano-tube flexible | material containing silicon source particles, the porous carbon nano-tube flexible material is finally "| mixed with magnesium powder, and the mixture undergoes a magnesium thermal reduction reaction | in an inert atmosphere to obtain a porous carbon nano-tube flexible battery material containing | nano-silicon. This patent focuses on the development of a new flexible battery material. | Hydrogen fuel cells, which are clean, efficient and renewable, have wide application prospects. It is | found by retrieval that the existing hydrogen fuel cells are mainly based on metal plates (stamped) |
CETTEor graphite plates (cut or die-pressed, etc.). The plates are rigid and cannot be used for flexible 01708 Ë electronic products.
There are few patent reports on flexible fuel cells. ; Summary of the Invention ; Embodiments of this Description aim to provide a method for preparing a flexible proton exchange E membrane fuel cell plate, which is simple, low in cost and capable of realizing continuous i processing, and is suitable for large-scale batch processing of plates. à An embodiment of this Description provides a flexible proton exchange membrane fuel cell plate, ; which is implemented by the following technical solution: | including: | a conductive polymer material plate, wherein the front and back surfaces of the conductive polymer ; material plate are respectively embossed with distribution region structure arrays and a channel f region structure array by using a roll-to-roll double-sided rolling process; | the channel region structure array is in the middle of the surface of the conductive polymer material ‘ plate, and the distribution region structure arrays are symmetrically arranged on two sides of the channel region structure array; ; one side of the conductive polymer material plate near one of the distribution region structure arrays | is provided with a hydrogen inlet, a water inlet and an oxygen inlet respectively; | the other opposite side of the conductive polymer material plate near the other distribution region : structure array is provided with a hydrogen outlet, a water outlet and an oxygen outlet respectively. \ In a further technical solution, the outermost layer of the cell plate is a corrosion-resistant gold ° coating. | / | In a further technical solution, the distribution region structure arrays include a plurality of raised / structures; ; the distribution region structure arrays are rectangular arrays, square arrays, hexagonal arrays, | | circular arrays, rhombic arrays, or triangular arrays.
È In a further technical solution, the bottom feature size of the distribution region structure array is 50 | to 800 um, and the depth-to-width ratio is more than or equal to 0.1. | In a further technical solution, the raised structures are cylindrical raised structures, rectangular ; | raised structures, cubic raised structures, or prismatic raised structures. |
In a further technical solution, the channel region structure array includes a plurality "659" 708 Ë two-dimensional groove structures having a width of 10 to 1000 um, a depth-to-width ratio of more | than or equal to 0.2, and a spacing of 30 to 1000 um. ; In a further technical solution, the gold coating has a thickness of 5 to 100 nm, and is uniformly ; distributed on the front and back surfaces of the plate. | An embodiment of this Description provides a preparation method of the flexible proton exchange ; membrane fuel cell plate, which is implemented by the following technical solution: | including: ; embossing distribution region and channel region structure arrays on the front and back surfaces of | a conductive polymer material plate by using a roll-to-roll double-sided rolling process; Ë then processing a hydrogen inlet, a water inlet, an oxygen inlet, a hydrogen outlet, a water outlet, ; and an oxygen outlet by using a punching process; and Ë finally, coating the front and back surfaces of the conductive polymer material plate with a ' corrosion-resistant gold coating respectively through a coating process to obtain the flexible proton ; exchange membrane fuel cell plate. 3 In a further technical solution, in the roll-to-roll double-sided rolling process, the embossing speed | is 0.3 to 20 m/min, the extrusion force is 30 to 80 kgf, and the temperature is 80 to 150°C; ; in the punching process, the speed is 0.1 to 100 mm/s, and the punching force is 1000 to 3000 N; 1 and .
in the coating process, the degree of vacuum is 1x10” to 4x10 Pa. © An embodiment of this Description provides a fuel cell, including the above flexible proton exchange membrane fuel cell plate. } The fuel cell is a flexible fuel cell and is assembled by stacking core components such as a proton ! exchange membrane and a plate, the proton exchange membrane plays a role of mass transfer, and | the plate is a channel for hydrogen, oxygen and water. : Compared with the prior art, the beneficial effects of the present disclosure are: | In the manufacturing method of the plate of the present invention, distribution region and channel | region structure arrays are processed by using a roll-to-roll double-sided rolling process, so the } method is simple, low in cost and capable of realizing continuous processing, and is suitable for ] large-scale batch processing of plates. Ë
4 } The flexible proton exchange membrane fuel cell plate based on a conductive polymer according to 01708 ; the present disclosure has better processability than metal materials, and fine channel structures | with large depth-to-width ratios can be manufactured more easily to significantly improve the heat ; exchange and mass transfer performance of the fuel cell. | The flexible proton exchange membrane fuel cell plate based on a conductive polymer according to ] the present disclosure has the advantages of light weight, foldability, bendability and the like, and is | very suitable for supplying energy to flexible electronic devices. | Brief Description of the Drawings ; The accompanying drawings constituting a part of the present disclosure are used for providing a ; further understanding of the present disclosure, and the schematic embodiments of the present 8 disclosure and the descriptions thereof are used for interpreting the present disclosure, rather than | constituting improper limitations to the present disclosure. ! ; Fig. 1 is a top view of an embodiment of a flexible proton exchange membrane fuel cell plate | according to an embodiment of the present disclosure; | Fig. 2 is a flowchart of preparing a proton exchange membrane fuel cell plate according to an | embodiment of the present disclosure; | Fig. 3 is a cross-sectional view of a channel region of the flexible proton exchange membrane fuel ; cell plate according to an embodiment of the present disclosure; ] In the figures, 110-hydrogen inlet; 120-water inlet; 130-oxygen inlet; 140-distribution region | structure array; 150-channel region structure array; 160-hydrogen outlet; 170-water outlet; | 180-oxygen outlet; 190-gold coating. | | Detailed Description of Embodiments 2 It should be pointed out that the following detailed descriptions are all exemplary and aim to further ; | illustrate the present disclosure.
Unless otherwise specified, all technological and scientific terms | used in the descriptions have the same meanings generally understood by those of ordinary skill in } the art of the present disclosure. | | It should be noted that the terms used herein are merely for describing specific embodiments, but | are not intended to limit exemplary embodiments according to the present disclosure.
As used |herein, unless otherwise explicitly pointed out by the context, the singular form is also intended td 01708 | include the plural form. In addition, it should also be understood that when the terms “include” È and/or “comprise” are used in the specification, they indicate features, steps, operations, devices, | components and/or their combination. ; | Embodiment 1 | This embodiment discloses a flexible proton exchange membrane fuel cell plate, as shown in Fig. 1, : a conductive polymer material plate, wherein the front and back surfaces of the conductive polymer f material plate are respectively embossed with distribution region structure arrays 140 and a channel | region structure array 150 by using a roll-to-roll double-sided rolling process. à The distribution region structure arrays distribute incoming hydrogen, oxygen, and water, so that : the hydrogen, oxygen, and water can be uniformly distributed to all channels. l Hydrogen, oxygen, and water coming from an inlet of the channel region structure array pass | through a distribution region and channel region, and arrive at an outlet in turn. Ë Referring to Fig. 3, the channel region structure array is in the middle of the surface of the 3 conductive polymer material plate (two-dimensional groove structure array), and the distribution | region structure arrays are symmetrically arranged on two sides of the channel region structure | array; ' [ One side of the conductive polymer material plate near one of the distribution region structure 3 arrays is provided with a hydrogen inlet 110, a water inlet 120 and an oxygen inlet 130 respectively; È The other opposite side of the conductive polymer material plate near the other distribution region | structure array is provided with a hydrogen outlet 160, a water outlet 170 and an oxygen outlet 180 | respectively. The outermost layer of the cell plate is a corrosion-resistant gold coating 190. | Cell reaction principle: when hydrogen and oxygen pass through an anode plate and a cathode plate È respectively, the hydrogen entering an anode is ionized into hydrogen ions and electrons under the Ê action of a catalyst; the electrons are transferred to a cathode through an external circuit, and the ! hydrogen ions arrive at the cathode through a proton exchange membrane; the oxygen at the ; cathode reacts with the hydrogen ions and the electrons to generate water molecules, and the water | produced is discharged with exhaust gas. È In an embodiment, the conductive polymer material of the material plate is PEDOT: PSS or the like. } |
In an embodiment, the hydrogen inlet, water inlet, oxygen inlet, hydrogen outlet, water outlet, Li§o1708 ] oxygen outlet are rectangular, square, trapezoidal, or circular. Specific shapes can be made | according to actual requirements. ' In an embodiment, the distribution region structure array includes a plurality of raised structures, | and the raised structures are cylindrical raised structures, rectangular raised structures, cubic raised | structures, or prismatic raised structures. : In an embodiment, the raised structures in the distribution region have a bottom feature size } (diameter or side length) of 50 to 800 um and a depth-to-width ratio of more than or equal to 0.1, : which refers to the geometric parameters of each raised structure. ; In an embodiment, the distribution region structure arrays are rectangular arrays, square arrays, : hexagonal arrays, circular arrays, rhombic arrays, or triangular arrays. F In an embodiment, the channel region structure array is composed of a plurality of two-dimensional | groove structure arrays. .
In an embodiment, the two-dimensional groove structures have a width of 10 to 1000 um, a | depth-to-width ratio of more than or equal to 0.2, and a spacing of 30 to 1000 um from the adjacent ; structure. Here it refers to the geometric parameters of each groove structure. : In an embodiment, the gold coating has a thickness of 5 to 100 nm, and is uniformly distributed on | the surface of the plate. | In an embodiment, the channel region structure array of the flexible proton exchange membrane | fuel cell plate prepared is as shown in Fig. 3, and the channel region structure array 140 has a width ; of 500 um, a depth-to-width ratio of 0.5, and a spacing of 500 um; and the gold coating 190 has a E thickness of 10 nm. Ë In an embodiment, the channel region structure array 140 has a width of 300 um. | In an embodiment, the channel region structure array 140 has a width of 700 pm. | In an embodiment, the channel region structure array 140 has a depth-to-width ratio of 0.4. | In an embodiment, the channel region structure array 140 has a depth-to-width ratio of 0.6. | In an embodiment, the two-dimensional groove structures of the channel region structure array 140 É have a spacing of 300 um. | In an embodiment, the two-dimensional groove structures of the channel region structure array 140 | have a spacing of 700 um. |
In an embodiment, the gold coating 190 has a thickness of 20 nm. LU101708 In an embodiment, the gold coating 190 has a thickness of 30 nm. Table 1 is a statistical table of heat exchange performance and corrosion resistance performance of the flexible proton exchange membrane fuel cell plates prepared in the above embodiments. The heat exchange performance test method is to uniformly heat the flexible proton exchange membrane fuel cell plates to 80°C, and then test the surface temperatures of channel regions of the plates after 3 minutes; and the corrosion resistance performance test is to immerse the flexible proton exchange membrane fuel cell plates in a 0.05 mol/L sulfuric acid solution, and take the plates out after 10 minutes to observe the corrosion of the surfaces of the plates.
The heat exchange performance test is to analyze the influence of the geometric parameters of the two-dimensional groove structures on the performance of the cell; if the heat exchange performance is better, the operation of the cell is more stable; excessive temperature will cause the proton exchange membrane to burn out; and hydrogen will generate a large amount of hydrogen ions during the reaction, so that the inside of the cell is an acidic environment. The corrosion resistance test is to analyze the influence of the thickness of the gold coating on the life of the cell; if the corrosion resistance is better, the cell can run stably for a long time, otherwise, the plate is corroded by the acidic environment and leaks gas/water.
Table 1 Statistical table of heat exchange performance and corrosion resistance performance of flexible proton exchange membrane fuel cell plates Depth-to-width Temperature | Corrosion Embodiment Width Spacing | ofgold ratio | after 3 min | resistance coating ——
Embodiment 2 Ë This embodiment discloses a preparation process flow of a flexible proton exchange membrane fuel ; cell plate. As shown in Fig. 2, a flexible proton exchange membrane fuel cell plate is obtained | through the steps such as a roll-to-roll double-sided rolling process, a punching process, and a ; coating process. Ë Specifically, the following steps are used: embossing distribution region structure arrays 140 and a | channel region structure array 150 on the front and back surfaces of a conductive polymer material : (PEDOT:PSS) by using a roll-to-roll double-sided rolling process, then processing a hydrogen inlet ) 110, a water inlet 120, an oxygen inlet 130, a hydrogen outlet 160, a water outlet 170, and an Ë oxygen outlet 180 by using a punching process, and finally, coating the surface of the plate with a ; corrosion-resistant gold coating 190 through a coating process to obtain the flexible proton | exchange membrane fuel cell plate. } In the roll-to-roll double-sided rolling process, the embossing speed is 0.3 to 20 m/min, the / extrusion force is 30 to 80 kgf, and the temperature is 80 to 150°C; in the punching process, the | speed is 0.1 to 100 mm/s, and the punching force is 1000 to 3000 N; and in the coating process, the ; degree of vacuum is 1x10 to 4x10 Pa. ; It could be appreciated that in this Description, the reference terms “an embodiment”, “another à embodiments”, “other embodiments”, or “the first embodiment to the N embodiment”, etc. mean | that specific features, structures, materials or characteristics described in conjunction with the ] embodiments or examples are included in at least one embodiment or example of the present | invention. In this Description, the schematic descriptions of the above terms do not necessarily refer | to the same embodiment or example. Moreover, the specific features, structures, materials or | characteristics described may be combined appropriately in one or more embodiments or examples. | Described above are merely preferred embodiments of the present disclosure, and the present | disclosure is not limited thereto. Various modifications and variations may be made to the present Ë disclosure for those skilled in the art. Any modification, equivalent substitution or improvement ' made within the spirit and principle of the present disclosure shall fall into the protection scope of | the present disclosure. ;
Claims (10)
1. A flexible proton exchange membrane fuel cell plate, comprising: ) a conductive polymer material plate, wherein the front and back surfaces of the conductive polymer | material plate are respectively embossed with distribution region structure arrays and a channel | region structure array by using a roll-to-roll double-sided rolling process; the channel region structure array is in the middle of the surface of the conductive polymer material ! plate, and the distribution region structure arrays are symmetrically arranged on two sides of the ) channel region structure array; | one side of the conductive polymer material plate near one of the distribution region structure arrays | is provided with a hydrogen inlet, a water inlet and an oxygen inlet respectively; and . the other opposite side of the conductive polymer material plate near the other distribution region | structure array is provided with a hydrogen outlet, a water outlet and an oxygen outlet respectively. |
2. The flexible proton exchange membrane fuel cell plate according to claim 1, wherein the | outermost layer of the cell plate is a corrosion-resistant gold coating. |
3. The flexible proton exchange membrane fuel cell plate according to claim 1, wherein the | distribution region structure arrays comprise a plurality of raised structures; and | the distribution region structure arrays are rectangular arrays, square arrays, hexagonal arrays, Ë circular arrays, rhombic arrays, or triangular arrays. |
4. The flexible proton exchange membrane fuel cell plate according to claim 1 or 3, wherein the } bottom feature size of the distribution region structure array is 50 to 800 um, and the depth-to-width Ë ratio is more than or equal to 0.1.
5. The flexible proton exchange membrane fuel cell plate according to claim 3, wherein the raised Ë structures are cylindrical raised structures, rectangular raised structures, cubic raised structures, or | prismatic raised structures, |
6. The flexible proton exchange membrane fuel cell plate according to claim 1, wherein the channel : region structure array comprises a plurality of two-dimensional groove structures having a width of 10 to 1000 um, a depth-to-width ratio of more than or equal to 0.2, and a spacing of 30 to 1000 pm. ]
7. The flexible proton exchange membrane fuel cell plate according to claim 2, wherein the gold | coating has a thickness of 5 to 100 nm, and is uniformly distributed on the front and back surfaces ; ofthe plate. Ï
10 ;
8. A preparation method of the flexible proton exchange membrane fuel cell plate according to aid! 01708 ; one of claims 1-7, comprising: } embossing distribution region and channel region structure arrays on the front and back surfaces of | a conductive polymer material plate by using a roll-to-roll double-sided rolling process; | then processing a hydrogen inlet, a water inlet, an oxygen inlet, a hydrogen outlet, a water outlet, ) and an oxygen outlet by using a punching process; and | finally, coating the front and back surfaces of the conductive polymer material plate with a : corrosion-resistant gold coating respectively through a coating process to obtain the flexible proton ; exchange membrane fuel cell plate. |
9. The preparation method of the flexible proton exchange membrane fuel cell plate according to : claim 8, wherein in the roll-to-roll double-sided rolling process, the embossing speed is 0.3 to 20 : m/min, the extrusion force is 30 to 80 kgf, and the temperature is 80 to 150°C; | in the punching process, the speed is 0.1 to 100 mm/s, and the punching force is 1000 to 3000 N; i and | in the coating process, the degree of vacuum is 1x10 to 4x10 Pa. |
10. A fuel cell, comprising the flexible proton exchange membrane fuel cell plate according to any | one of claims 1-7. |
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| CN201910544767.3A CN110289429B (en) | 2019-06-21 | 2019-06-21 | A flexible proton exchange membrane fuel cell electrode plate and preparation method thereof |
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| CN1209835C (en) * | 2001-05-25 | 2005-07-06 | 北京飞驰绿能电源技术有限责任公司 | Making process of two plates of proton exchange film fuel cell |
| JP4151314B2 (en) * | 2001-06-18 | 2008-09-17 | トヨタ自動車株式会社 | Fuel cell |
| EP1704613A1 (en) * | 2003-12-12 | 2006-09-27 | Lg Electronics Inc. | Bipolar plate of fuel cell |
| CN100423331C (en) * | 2006-11-30 | 2008-10-01 | 上海交通大学 | Manufacturing method of metal bipolar plate for proton exchange membrane fuel cell based on roll forming |
| EP1978582A1 (en) * | 2007-04-05 | 2008-10-08 | Atotech Deutschland Gmbh | Process for the preparation of electrodes for use in a fuel cell |
| CN101101991B (en) * | 2007-07-27 | 2010-09-08 | 中山大学 | Ion Exchange Membrane Fuel Cell Flow Field Plate |
| CN101572318B (en) * | 2009-06-16 | 2010-12-08 | 新源动力股份有限公司 | Metal bipolar plate of proton exchange membrane fuel cell |
| CN101867053B (en) * | 2010-06-25 | 2012-07-11 | 清华大学 | Fuel cell stack for jointly applying intraplate counter-flow flow field and interpolate counter-flow flow field |
| JP2015534700A (en) * | 2012-08-30 | 2015-12-03 | ソルベイ スペシャルティ ポリマーズ ユーエスエー， エルエルシー | Fuel cell components |
| FR2997562B1 (en) * | 2012-10-30 | 2017-01-13 | Michelin & Cie | BIPOLAR PLATE FOR FUEL CELL |
| CN103811777B (en) * | 2014-01-13 | 2016-03-02 | 江苏绿遥燃料电池系统制造有限公司 | Collector plate of a kind of fuel cell and preparation method thereof |
| CN104332641A (en) * | 2014-08-28 | 2015-02-04 | 清华大学 | Preparation method of composite bipolar plate |
| US20160104901A1 (en) * | 2014-10-11 | 2016-04-14 | Daimler Ag | Method for making complex bipolar plates for fuel cells using extrusion |
| CN108199058B (en) * | 2017-12-15 | 2023-05-05 | 中国第一汽车股份有限公司 | Preparation method of conductive polymer-graphene composite bipolar plate |
| CN108321400B (en) * | 2017-12-29 | 2023-05-05 | 上海神力科技有限公司 | Method for producing molded bipolar plates of fuel cell in pairs |
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