Fused filament fabrication for anode supported SOFC development: Towards advanced, scalable and cost-competitive energetic systems

Berges, Cristina; Wain, Andrew J.; Andújar, R.; Naranjo, Jesús Andrés; Gallego, Alberto; Nieto, Emilio; Herranz, Gemma; Campana, R.

doi:10.1016/j.ijhydene.2021.02.097

Cited by 16 publications

(6 citation statements)

References 38 publications

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“…36−39 Furthermore, during the conventional methods (extrusion, dip coating, and phase inversion) and fused filament fabrication, a high amount of binder (e.g., mass ratios of binder/ceramics are 10−25 wt %) is usually required, which may cause severe deformation issues during the postdrying/ sintering processes. 18,27,29,30,41 In our case, the binder content (e.g., hydroxypropyl methylcellulose) in the paste is only 0.31 wt %, ensuring the feasible viscosity for printing and mitigating the deformation issues. Moreover, to further achieve good shape retainability of the anode and ensure good adhesion between printed layers without requiring high paste viscosity, a CO 2 laser was used for rapid in situ drying of the printed green body after printing each layer of the anode support.…”

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confidence: 94%

“…In the past decade, great efforts have been devoted to manufacturing the components of planar oxygen-ion conducting solid oxide fuel cells (O-SOFCs) via 3DP, such as inkjet printing, 31−33 aerosol jet printing, 34,35 digital light processing−stereolithography, 36−39 binder jetting, 40 and fused filament fabrication. 41 Recently, Huang et al 42 reported 3D-printed microtubular O-SOFCs with high performance and excellent long-term durability. However, the method still needs an extra tubular mold with specific dimensions for tubular support printing.…”

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confidence: 99%

“…Additive manufacturing, also termed 3D printing (3DP), is a promising technique that offers significant opportunities in fabricating solid oxide fuel cells (SOFCs) due to the advantages of robotization, flexible customization, high accuracy, and high reproducibility. In the past decade, great efforts have been devoted to manufacturing the components of planar oxygen-ion conducting solid oxide fuel cells (O-SOFCs) via 3DP, such as inkjet printing, − aerosol jet printing, , digital light processing–stereolithography, − binder jetting, and fused filament fabrication . Recently, Huang et al reported 3D-printed microtubular O-SOFCs with high performance and excellent long-term durability.…”

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confidence: 99%

“…It can effectively reduce manufacturing costs compared to other 3D printing techniques. In comparison, inkjet printing and aerosol jet printing require ultrafine powders (submicrometer size) and low solid contents to prepare printable low-viscosity inks, leading to an increased cost; digital light processing–stereolithography needs expensive and special photosensitive resin in the slurry as well as lengthy debinding (hours to days). − Furthermore, during the conventional methods (extrusion, dip coating, and phase inversion) and fused filament fabrication, a high amount of binder (e.g., mass ratios of binder/ceramics are 10–25 wt %) is usually required, which may cause severe deformation issues during the postdrying/sintering processes. ,,,, In our case, the binder content (e.g., hydroxypropyl methylcellulose) in the paste is only 0.31 wt %, ensuring the feasible viscosity for printing and mitigating the deformation issues. Moreover, to further achieve good shape retainability of the anode and ensure good adhesion between printed layers without requiring high paste viscosity, a CO 2 laser was used for rapid in situ drying of the printed green body after printing each layer of the anode support.…”

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confidence: 99%

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3D Printing Enabled Highly Scalable Tubular Protonic Ceramic Fuel Cells

et al. 2023

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Protonic ceramic fuel cells (PCFCs) are clean and efficient power generation devices operating at intermediate temperatures. However, manufacturing difficulties have limited their commercialization, especially for promising tubular PCFCs. Herein, we report a cost-effective 3D printing technique for manufacturing large-area tubular PCFCs (e.g., 15.7 cm2), featured with the use of commercial raw materials, a small amount of binder, and a CO2 laser for rapid in situ drying. The technical advantages enable low-cost material preparation and efficient achievement of exemplary shape/dimension-controlled uniform microstructures in porous anode support, dense electrolyte, and porous cathode. The 3D-printed tubular PCFC (∼12.5 cm2) exhibits a power output of 2.45 W at 650 °C. Meanwhile, the long-term stability is confirmed during 200 h of operation. This novel 3D printing offers great potential to advance PCFCs from the laboratory to larger scales for realistic applications.

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3D Printing Enabled Highly Scalable Tubular Protonic Ceramic Fuel Cells

et al. 2023

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“…Moreover, when it comes to using high-temperature SOFC elements based on oxygen-containing membranes or ceramics, the operating temperature at which acceptable conductivity values are achieved is more than 700 • C, which results in high heat release, alongside a long start-up time [5,6]. Moreover, an essential factor influencing the use of such structures in the fuel cycle is the preservation of their stability and sustainability during operation for a long time (40,000-50,000 h) [7][8][9].…”

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confidence: 99%

Synthesis, Structural Properties, and Resistance to High-Temperature Degradation of Perovskite Ceramics Based on Lanthanum–Strontium Ferrite

et al. 2023

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This work is dedicated to the study of the properties of perovskite ceramics based on lanthanum–strontium ferrite, and to the evaluation of their resistance to long-term thermal aging. As a method for obtaining perovskite ceramics, the method of solid-phase mechanochemical grinding and consequent thermal annealing of the resulting mixtures was chosen. The novelty of the study consists in the assessment of the phase transformation dynamics in lanthanum–strontium ferrite-based ceramics in relation to the annealing temperature, alongside the study of the effect of the phase composition of ceramics on the resistance to high-temperature aging, which is characteristic of the operating modes of these ceramics as materials for solid oxide fuel cells. To study the properties, the methods of scanning electron microscopy, energy dispersive analysis, and scanning electron microscopy were applied. Pursuant to the outcome of elemental analysis, it was established that no impurity inclusions appear in the ceramic structure during the synthesis, and a growth in the annealing temperature results into a decline in the grain size and a growth in their density. During the analysis of the acquired X-ray diffraction patterns, it was found that a growth in the annealing temperature above 500 °C results in phase transformations of the LaFeO3/SrFe2O4 → La0.3Sr0.7FeO3/LaSr2FeO8/La3FeO6 type, followed by structural ordering and a decline in deformation distortions with a growth in the annealing temperature. An analysis of the conductive properties of ceramics has established that the dominance of the La0.3Sr0.7FeO3 phase in the structure results in a growth in conductivity and a decline in resistance. Life tests for degradation resistance have shown that for three-phase ceramics, the rate of degradation and amorphization is significantly lower than for two-phase ceramics.

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