Photocuring 3D printing preparation method of anode support for fuel cell

Abstract

The invention provides a photocuring 3D printing preparation method of an anode support for a fuel cell. The photocuring 3D printing preparation method comprises the following steps: uniformly mixing photosensitive resin, a ternary blending photoinitiator, a flatting agent and a defoaming agent to obtain a resin premixed solution; 8YSZ powder, NiO powder and a dispersing agent are taken and added into the resin premixed solution to be evenly mixed, vacuum defoaming is conducted, and anode supporting body slurry is obtained; designing an anode support body by designing a flow channel integral structure, a flow channel opening section and a flow channel inner surface to obtain an anode support body three-dimensional model; slicing the three-dimensional model of the anode support according to a certain layering thickness, guiding into photocuring 3D printing equipment, adding the anode support slurry, and carrying out layer-by-layer printing and curing to obtain a green body of the anode support; and sequentially degreasing and sintering the anode support body green body to obtain the photocuring 3D printing anode support body. The photocuring 3D printing preparation method of the anode support for the fuel cell, provided by the invention, is simple and feasible, and the prepared anode support is relatively high in quality.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel cell preparation, and particularly relates to a method for preparing an anodic support for a fuel cell by photocuring 3D printing. Background Art

[0002] Solid oxide fuel cells (SOFCs) are a new type of energy conversion technology that directly converts chemical energy into electrical energy through an electrochemical method. Compared with traditional internal combustion engines and steam turbines, the fuel utilization efficiency can be increased from 30% to over 55%. Under the condition of using the same weight of fuel, the endurance can be increased by over 70%. Compared with lithium batteries and other storage batteries, SOFCs have a high energy density and do not require charging. As long as fuel is added, electrical energy can be continuously provided. Therefore, SOFCs have extremely broad application prospects in the fields of fixed large and medium-sized power stations, decentralized small power stations, mobile power sources, and power generation systems for special purposes such as aerospace, and are regarded as the most promising green power generation system in the 21st century.

[0003] There are mainly three structural design methods for SOFCs: tubular, flat plate, and flat tube. Currently, flat tube fuel cells have gradually become the key development direction of SOFCs because they combine the advantages of simple sealing of tubular fuel cells and easy power extraction of flat plate fuel cells, and have the characteristics of good mechanical properties, strong impact resistance, small sealing area, low fuel leakage risk, and easy engineering application.

[0004] In flat tube fuel cells, the anode not only needs to have a certain strength to serve as the structural support of the entire fuel cell, but also needs to have a suitable flow channel structure and a high porosity to enable the rapid transmission of fuel gas and reaction by-products.

[0005] Currently, most anodic supported flat tube SOFCs are prepared by extrusion molding. However, it is extremely difficult and costly to design and optimize the gas flow channels through this preparation method.

[0006] Therefore, there is an urgent need for a simple, feasible, and high-quality preparation method for anodic supports for fuel cells. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a simple, feasible, and high-quality method for preparing an anodic support for a fuel cell by photocuring 3D printing, so as to solve the problem of the great difficulty in designing and optimizing the gas flow channels in the traditional extrusion molding preparation method of the anodic support of flat tube fuel cells.

[0008] To solve the above technical problem, the present invention provides a method for preparing an anodic support for a fuel cell by photocuring 3D printing, including the following steps: Taking 93 - 98 wt% of photosensitive resin, 1 - 5 wt% of ternary blend photoinitiator, 0.5 - 1 wt% of leveling agent, and 0.5 - 1 wt% of defoaming agent by mass percentage, mix them evenly to obtain a resin premix; Taking 36 - 42 wt% of 8YSZ powder, 42 - 48 wt% of NiO powder, and 0.5 - 3 wt% of dispersant by mass percentage, add them to 10 - 25 wt% of the resin premix, mix evenly and remove air bubbles under vacuum to obtain an anode - supported body slurry; Perform designs including the overall structure design of the flow channel, the cross - section design of the flow channel orifice, and the inner surface design of the flow channel on the anode - supported body to obtain a three - dimensional model of the anode - supported body; Slice the three - dimensional model of the anode - supported body at a certain layer thickness, import it into a stereolithography 3D printing device, add the anode - supported body slurry, and print and cure layer by layer to obtain a green body of the anode - supported body; Debind and sinter the green body of the anode - supported body in sequence to obtain a stereolithography 3D - printed anode - supported body.

[0009] Furthermore, the photosensitive resin includes but is not limited to at least one of bisphenol A epoxy acrylate, polyurethane acrylate, polyethylene glycol diacrylate, dipropylene glycol diacrylate, trimethylolpropane triacrylate, 2 - hydroxyethyl methacrylate, 1,6 - hexanediol diacrylate, isobornyl methacrylate; The leveling agent includes but is not limited to at least one of BYK - 333, Tego Glide 450, EFKA - 3777; The defoaming agent is BYK - A530.

[0010] Furthermore, by mass percentage, the ternary blend photoinitiator includes 20 - 40 wt% of free - radical photoinitiator, 20 - 40 wt% of cationic photoinitiator, and 40 - 60 wt% of amine co - initiator.

[0011] Furthermore, the free - radical photoinitiator includes but is not limited to at least one of TPO, 819, 184, 907, 1173, ITX, BP; The cationic photoinitiator includes but is not limited to at least one of I - 250, I - 261, I - 910, UVI - 6976, R - GEN 262; The amine co - initiator includes but is not limited to at least one of EDB, EHA, DMB, PDA, NVK.

[0012] Furthermore, the particle size D of the 8YSZ powder 50 is 1 - 10 μm; the particle size D of the NiO powder 50 is 1 - 5 μm.

[0013] Further, the dispersant includes, but is not limited to, at least one of oleic acid, KH-560, polyvinylpyrrolidone, BYK-111, BYK-2155, and SOLSPERSE 24000.

[0014] Further, the overall structural design of the flow channels of the anode support includes, but is not limited to, the overall structural design of vertical, bent, and spiral flow channels; The cross-sectional design of the flow channel openings of the anode support includes, but is not limited to, the cross-sectional design of circular, triangular, rectangular, polygonal, and star-shaped flow channel openings; The inner surface design of the flow channels of the anode support includes, but is not limited to, the inner surface design of smooth surfaces, textured surfaces, and ribbed protrusions.

[0015] Further, the layer thickness of the slices is 25 - 50 μm.

[0016] Further, the debinding is vacuum debinding with a heating rate of 0.5 - 2 °C / min; the sintering is air sintering with a heating rate of 3 - 5 °C / min.

[0017] In the method for preparing an anode support for a fuel cell by photocuring 3D printing provided by the present invention, when formulating a resin premix with a photosensitive resin, a photoinitiator, and other additives, the photoinitiator adopts a ternary blend initiation system composed of a free radical photoinitiator, a cationic photoinitiator, and an amine co-initiator. Among them, the free radical initiator can play a major photoinitiation role, but the free radical initiator is more sensitive to oxygen. Using the free radical initiator in combination with the amine co-initiator can play a role in alleviating oxygen inhibition of polymerization. And although the free radical initiator has a relatively fast curing rate, its curing shrinkage is relatively large, while the cationic initiator has a relatively slow curing rate but a relatively small curing shrinkage. Therefore, using the free radical initiator in combination with the cationic initiator can not only ensure the curing rate of the photocuring slurry of the anode support, but also avoid a large shrinkage of the photocuring slurry of the anode support.

[0018] Therefore, through the comprehensive design of the curing rate, curing depth, and curing shrinkage of the ternary blend photoinitiation system formed by three different types of initiators in the present invention, the problem of low curing depth of the formulated dark ceramic slurry can be solved to a large extent, thereby providing a favorable guarantee for preparing a high-quality anode support for a fuel cell by photocuring 3D printing.

[0019] Moreover, a method for preparing an anodic support for a fuel cell by photocuring 3D printing according to the present invention can easily optimize the gas flow channel structure of the anodic support through the additive manufacturing technology of photocuring 3D printing. This not only makes the preparation of the anodic support for a fuel cell simple and feasible, but also easily ensures the preparation quality of the anodic support for a fuel cell and easily improves the performance of the anodic support for a fuel cell. It well solves the problems of large manufacturing difficulty and low yield rate existing in the current preparation method of extruding and forming the flat tube type fuel cell anode support.

[0020] Meanwhile, a method for preparing an anodic support for a fuel cell by photocuring 3D printing according to the present invention can design various flow channel structures of the anodic support through the additive manufacturing technology of photocuring, which can greatly release the potential of the structural design of the gas flow channel of the anodic support and shorten the technology update and iteration cycle. It has good application prospects and is worthy of popularization and application. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a flowchart of a method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of the overall structural design of the vertical flow channel of the anodic support in the method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the overall structural design of the bent flow channel of the anodic support in the method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention; Figure 4 It is a schematic diagram of the cross-sectional design of various flow channel openings of the anodic support in the method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of the inner surface design of the flow channel with a textured surface of the anodic support in the method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention; Figure 6 It is a schematic diagram of the inner surface design of the flow channel with ribbed plate protrusions of the anodic support in the method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention; Figure 7 It is a schematic diagram of the typical structure of the anodic support in the method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] See Figure 1 , a method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by an embodiment of the present invention includes the following steps: Step 1): Take 93 - 98 wt% of photosensitive resin, 1 - 5 wt% of ternary blend photoinitiator, 0.5 - 1 wt% of leveling agent, and 0.5 - 1 wt% of defoaming agent by mass percentage, and mix them evenly to obtain a resin premix.

[0023] Among them, the photosensitive resin includes but is not limited to at least one of bisphenol A epoxy acrylate, polyurethane acrylate, polyethylene glycol diacrylate, dipropylene glycol diacrylate, trimethylolpropane triacrylate, 2 - hydroxyethyl methacrylate, 1,6 - hexanediol diacrylate, and isobornyl methacrylate.

[0024] The leveling agent includes but is not limited to at least one of BYK - 333, Tego Glide 450, and EFKA - 3777. The defoaming agent is BYK - A530.

[0025] Moreover, by mass percentage, the ternary blend photoinitiator includes 20 - 40 wt% of free - radical photoinitiator, 20 - 40 wt% of cationic photoinitiator, and 40 - 60 wt% of amine co - initiator.

[0026] Among them, the free - radical photoinitiator includes but is not limited to at least one of TPO, 819, 184, 907, 1173, ITX, and BP.

[0027] The cationic photoinitiator includes but is not limited to at least one of I - 250, I - 261, I - 910, UVI - 6976, and R - GEN 262.

[0028] The amine co - initiator includes but is not limited to at least one of EDB, EHA, DMB, PDA, and NVK.

[0029] A method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by the present invention uses a ternary blend initiation system composed of a free - radical photoinitiator, a cationic photoinitiator, and an amine co - initiator as the photoinitiator. Since the free - radical initiator can play a major photo - initiation role, but the free - radical initiator is more sensitive to oxygen, therefore, the compound use of the free - radical initiator and the amine co - initiator can play a role in alleviating oxygen inhibition of polymerization. And although the free - radical initiator has a faster curing rate, its curing shrinkage is larger, while the cationic initiator has a slower curing rate but a smaller curing shrinkage. Therefore, the compound use of the free - radical initiator and the cationic initiator can not only ensure the curing rate of the finally prepared anodic support slurry, but also avoid a large shrinkage of the prepared anodic support photocuring slurry.

[0030] Therefore, through the comprehensive design of the curing rate, curing depth, and curing shrinkage of the ternary blend photoinitiator system formed by three different types of initiators, the present invention can largely solve the problem of low curing depth of the formulated dark ceramic slurry for the anode support, thus providing a favorable guarantee for preparing a high-quality anode support for fuel cells by means of photocuring 3D printing.

[0031] Step 2): By weight percentage, take 36 - 42 wt% of 8YSZ powder, 42 - 48 wt% of NiO powder, and 0.5 - 3 wt% of a dispersant and add them to 10 - 25 wt% of a resin premix solution. Mix well and remove air bubbles under vacuum to obtain the anode support slurry.

[0032] Among them, the particle size D of the 8YSZ powder 50 is 1 - 10 μm; the particle size D of the NiO powder 50 is 1 - 5 μm.

[0033] Among them, the dispersant includes but is not limited to at least one of oleic acid, KH - 560, polyvinylpyrrolidone, BYK - 111, BYK - 2155, and SOLSPERSE 24000.

[0034] Step 3): Design the anode support to obtain a three-dimensional model of the anode support, including the overall structure design of the flow channel, the cross-sectional design of the flow channel orifice, and the inner surface design of the flow channel.

[0035] Among them, referring to Figure 2 , as a specific embodiment of the present invention, the overall structure design of the anode support flow channel can be a vertical flow channel overall structure design.

[0036] Referring to Figure 3 , as a specific embodiment of the present invention, the overall structure design of the anode support flow channel can also be a curved flow channel overall structure design.

[0037] Of course, as other specific embodiments of the present invention, the overall structure design of the anode support flow channel can also be a spiral flow channel overall structure design.

[0038] Referring to Figure 4 , as a specific embodiment of the present invention, the cross-sectional design of the anode support flow channel orifice includes but is not limited to circular, triangular, rectangular, polygonal, and star-shaped cross-sectional designs of the flow channel orifice.

[0039] Among them, the inner surface design of the anode support flow channel is usually a smooth surface inner surface design of the flow channel.

[0040] Referring to Figure 5, as a specific embodiment of the present invention, the inner surface design of the flow channel of the anode support can be a straight or inclined grain surface design of the inner surface of the flow channel.

[0041] See Figure 6 , as a specific embodiment of the present invention, the inner surface design of the flow channel of the anode support can be a ribbed convex design of the inner surface of the flow channel.

[0042] The present invention provides a method for preparing an anodic support for a fuel cell by photocuring 3D printing. By optimizing the gas flow channel structure of the anodic support, not only can the preparation of the anodic support for the fuel cell be simple and feasible, but also it is easy to ensure the preparation quality of the anodic support for the fuel cell, and it is easy to improve the performance of the anodic support for the fuel cell, which well solves the problems of large manufacturing difficulty and low yield rate existing in the current preparation method of the flat tube fuel cell anode support by extrusion molding.

[0043] Moreover, the present invention can conveniently design various flow channel structures of the anodic support through the photocuring additive manufacturing technology, which can greatly release the potential of the structural design of the gas flow channel of the anodic support, shorten the technology update and iteration cycle, and has good application prospects and is worthy of popularization and application.

[0044] Step 4) Slice the three-dimensional model of the anodic support according to a certain layer thickness and import it into the photocuring 3D printing equipment. Add the anodic support slurry and print and cure layer by layer to obtain a green body of the anodic support.

[0045] Among them, in order to facilitate the photocuring 3D printing of the anodic support and improve the photocuring 3D printing quality of the anodic support, the layer thickness of the slice is controlled to be 25-50 μm.

[0046] Step 5) Debind and sinter the green body of the anodic support in sequence to obtain a photocured 3D printed anodic support.

[0047] Among them, the debinding of the green body of the anodic support is vacuum debinding, and the heating rate is 0.5-2 °C / min. The sintering of the green body of the anodic support is air sintering, and the heating rate is 3-5 °C / min.

[0048] The method for preparing an anodic support for a fuel cell by photocuring 3D printing provided by the present invention can not only solve the problem of low curing depth of the prepared anodic support slurry and obtain a high-quality anodic support for the fuel cell, but also make the preparation of the anodic support for the fuel cell simple, feasible, economical and efficient through the photocuring 3D printing method, and well solve the problem of great difficulty in the design and optimization of the gas flow channel in the traditional extrusion molding preparation method of the flat tube fuel cell anode support.

[0049] To better understand the present invention, the content of the present invention will be further specifically clarified below in conjunction with embodiments. The embodiments are only used to explain the present invention, and the content of the present invention is not limited to the following embodiments.

[0050] Example 1 Weigh 12 g of bisphenol A epoxy acrylate, 18 g of dipropylene glycol diacrylate, and 5.5 g of 2-hydroxyethyl methacrylate, add them to a beaker, and stir magnetically for 20 min to mix evenly; weigh 0.5 g of initiator 184, 0.5 g of initiator ITX, 0.9 g of initiator EDB, 0.3 g of leveling agent BYK-333, and 0.3 g of defoaming agent BYK-A530, and add them to the above beaker in sequence, and continue to stir magnetically for 20 min to mix evenly to obtain a resin premix; weigh 6 g of dispersant polyvinylpyrrolidone, 72 g of 8YSZ powder with a particle size D 50 of 5 μm, and 84 g of NiO powder with a particle size D 50 of 3 μm, add them together with the above resin premix to a ball mill tank, stir by ball milling for 4 h, pour out the mixed solution, and remove bubbles under vacuum to obtain a ceramic slurry.

[0051] See Figure 7 , using the anode support with a typical structure as a model, perform photocuring 3D printing and forming with the above ceramic slurry, with a printing layer thickness of 25 μm, and obtain a green body of the anode support after printing.

[0052] Debind the green body in a vacuum atmosphere, and the heating program is as follows: from room temperature to 200 °C at a rate of 2 °C / min, hold for 60 min; then rise to 600 °C at a rate of 1 °C / min, hold for 120 min; then cool down to 200 °C at a rate of 5 °C / min and cool with the furnace. After debinding, sinter in an air atmosphere, and the heating program is as follows: from room temperature to 1650 °C at a rate of 3 °C / min, hold for 120 min, and then cool down to 400 °C at a rate of 5 °C / min and cool with the furnace. After sintering, an additively manufactured anode support sample can be obtained.

[0053] Example 2 Weigh 20 g of polyurethane acrylate, 25 g of dipropylene glycol diacrylate, 8 g of 1,6-hexanediol diacrylate, weigh 0.8 g of initiator 651, 0.8 g of initiator ITX, 1.4 g of initiator EDB, 0.5 g of leveling agent Tego Glide450, and 0.5 g of defoaming agent BYK-A530, and add them to the above beaker in sequence, and stir magnetically for 30 min to mix evenly to obtain a resin premix; weigh 8 g of dispersant BYK111, 100 g of 8YSZ powder with a particle size D 50 of 8 μm, and 135 g of NiO powder with a particle size D 50NiO powder with a size of 3 μm was added to the above resin premix in a ball mill jar, and ball milled and stirred for 8 h. Then the mixed solution was poured out and degassed under vacuum to obtain a ceramic slurry.

[0054] The above ceramic slurry was used for photocuring 3D printing. The printing layer thickness was 25 μm. After printing, a green body of the anode support was obtained.

[0055] The green body was degreased in a vacuum atmosphere. The heating program was as follows: from room temperature to 250 °C at a rate of 1 °C / min, and held for 60 min; then heated to 650 °C at a rate of 0.5 °C / min and held for 120 min; then cooled to 200 °C at a rate of 5 °C / min and cooled with the furnace. After degreasing, it was sintered in an air atmosphere. The heating program was as follows: from room temperature to 1650 °C at a rate of 3 °C / min and held for 120 min, then cooled to 400 °C at a rate of 5 °C / min and cooled with the furnace. After sintering, a complete additively manufactured anode support sample was obtained.

[0056] Example 3 Weigh 15 g of bisphenol A epoxy acrylate, 30 g of polyethylene glycol diacrylate, and 15 g of 1,6 - hexanediol diacrylate, add them to a beaker, and stir magnetically for 30 min until evenly mixed; weigh 1.0 g of initiator 819, 0.8 g of initiator DETX, 1.2 g of initiator EHA, 0.5 g of leveling agent EFKA - 3777, and 0.5 g of defoaming agent BYK - A530, and add them to the above beaker in sequence, then continue to stir magnetically for 30 min until evenly mixed to obtain a resin premix; weigh 12 g of dispersant SOLSPERSE 24000, 160 g of 8YSZ powder with a particle size D 50 of 8 μm, and 176 g of NiO powder with a particle size D 50 of 5 μm. They were added to the above resin premix in a ball mill jar, ball milled and stirred for 12 h, then the mixed solution was poured out and degassed under vacuum to obtain a ceramic slurry.

[0057] The above ceramic slurry was used for photocuring 3D printing. The printing layer thickness was 25 μm. After printing, a green body of the anode support could be obtained.

[0058] The green body was degreased in a vacuum atmosphere. The heating program was as follows: from room temperature to 280 °C at a rate of 1 °C / min and held for 60 min; then heated to 700 °C at a rate of 0.5 °C / min and held for 120 min; then cooled to 200 °C at a rate of 5 °C / min and cooled with the furnace. After degreasing, it was sintered in an air atmosphere. The heating program was as follows: from room temperature to 1650 °C at a rate of 3 °C / min and held for 120 min, then cooled to 400 °C at a rate of 5 °C / min and cooled with the furnace. After sintering, an additively manufactured anode support sample could be obtained.

[0059] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the examples, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A method for preparing an anodic support for a fuel cell by photocuring 3D printing, characterized in that, It includes the following steps: Taking 93 - 98 wt% of photosensitive resin, 1 - 5 wt% of ternary blend photoinitiator, 0.5 - 1 wt% of leveling agent, and 0.5 - 1 wt% of defoaming agent by mass percentage, and mixing them evenly to obtain a resin premix; Taking 36 - 42 wt% of 8YSZ powder, 42 - 48 wt% of NiO powder, 0.5 - 3 wt% of dispersant, adding them into 10 - 25 wt% of the resin premix, mixing evenly and degassing under vacuum to obtain an anode support slurry; Performing designs including the overall structure design of the flow channel, the cross - section design of the flow channel orifice, and the inner surface design of the flow channel on the anode support to obtain a three - dimensional model of the anode support; Slicing the three - dimensional model of the anode support with a certain layer thickness, importing it into a stereolithography 3D printing device, adding the anode support slurry, and printing and curing layer by layer to obtain a green body of the anode support; Successively degreasing and sintering the green body of the anode support to obtain a stereolithography 3D - printed anode support.

2. The method for preparing a photo-cured 3D printed anode support for a fuel cell according to claim 1, characterized in that: The photosensitive resin includes but is not limited to at least one of bisphenol A epoxy acrylate, polyurethane acrylate, polyethylene glycol diacrylate, dipropylene glycol diacrylate, trimethylolpropane triacrylate, 2 - hydroxyethyl methacrylate, 1,6 - hexanediol diacrylate, isobornyl methacrylate; The leveling agent includes but is not limited to at least one of BYK - 333, Tego Glide 450, EFKA - 3777; The defoaming agent is BYK - A530.

3. The method for preparing an anodic support for a fuel cell by photocuring 3D printing according to claim 1, wherein: By mass percentage, the ternary blend photoinitiator includes 20 - 40 wt% of free - radical photoinitiator, 20 - 40 wt% of cationic photoinitiator, and 40 - 60 wt% of amine co - initiator.

4. The method for preparing an anodic support for a fuel cell by photocuring 3D printing according to claim 3, characterized in that: The free - radical photoinitiator includes but is not limited to at least one of TPO, 819, 184, 907, 1173, ITX, BP; The cationic photoinitiator includes but is not limited to at least one of I - 250, I - 261, I - 910, UVI - 6976, R - GEN 262; The amine co - initiator includes but is not limited to at least one of EDB, EHA, DMB, PDA, NVK.

5. The method for preparing an anodic support for a fuel cell by photocuring 3D printing according to claim 1, characterized in that: The particle size D of the 8YSZ powder 50 is 1 - 10 μm; the particle size D of the NiO powder 50 is 1 - 5 μm.

6. The method for preparing an anodic support for a fuel cell by photocuring 3D printing according to claim 1, characterized in that: The dispersant includes but is not limited to at least one of oleic acid, KH - 560, polyvinylpyrrolidone, BYK - 111, BYK - 2155, SOLSPERSE 24000.

7. The method for preparing an anodic support for a fuel cell by photocuring 3D printing according to claim 1, characterized in that: The overall structure design of the anode support flow channel includes but is not limited to the overall structure design of vertical, bent, or spiral flow channels; The cross - section design of the anode support flow channel orifice includes but is not limited to the cross - section design of circular, triangular, rectangular, polygonal, or star - shaped flow channel orifices; The inner surface design of the anode support flow channel includes but is not limited to the inner surface design of smooth surface, textured surface, or ribbed protrusions.

8. The method for preparing an anodic support for a fuel cell by photocuring 3D printing according to claim 1, wherein: The layer thickness of the slicing is 25 - 50 μm.

9. The method for preparing an anodic support for a fuel cell by photocuring 3D printing according to claim 1, characterized in that: The degreasing is vacuum degreasing with a heating rate of 0.5 - 2 ℃ / min; the sintering is air sintering with a heating rate of 3 - 5 ℃ / min.

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