Thematische Bibliographien / Solid Oxide Cells (SOC)

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Auswahl der wissenschaftlichen Literatur zum Thema „Solid Oxide Cells (SOC)“

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Veröffentlicht am 18. Mai 2024

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Zeitschriftenartikel zum Thema "Solid Oxide Cells (SOC)"

Horlick, Samuel A., Scott Swartz, David Kopechek, Geoff Merchant, Taylor Cochran und John Funk. „Progress of Solid Oxide Electrolysis and Fuel Cells for Hydrogen Generation, Power Generation, Grid Stabilization, and Power-to-X Applications“. ECS Meeting Abstracts MA2023-01, Nr. 54 (28.08.2023): 152. http://dx.doi.org/10.1149/ma2023-0154152mtgabs.

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Over the past 25+ years, Nexceris has been developing solid oxide cell (SOC) technology for power generation, energy storage and hydrogen production applications. Nexceris is vertically integrated SOC technology provider that develops and manufactures solid oxide electrode materials, interconnect coatings, planar electrolyte supported cells, and solid oxide stacks. Nexceris stacks are designed for low-cost manufacture and pressurized operation, and stacks have large repeat unit area for efficient packaging into megawatt-scale systems. Nexceris’ stacks are being tested in fuel cell, electrolysis, and reversible modes, with a focus on optimizing performance, efficiency, and durability. Current work at Nexceris includes long-term electrolysis stack durability testing, breadboard system testing of reversible SOC stacks, third-party stack validation testing, and SOC system design and demonstration testing. Nexceris also is exploring solid oxide co-electrolysis for converting steam and CO2 to syngas and the conversion of this syngas to fuels and chemicals. This presentation will provide an update on Nexceris’ solid oxide cell technology development and commercialization activities.

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Ikegawa, Kazutaka, Kengo Miyara, Yuya Tachikawa, Stephen Matthew Lyth, Junko Matsuda und Kazunari Sasaki. „Performance and Durability of Solid Oxide Electrolysis Cell Air Electrodes Prepared By Various Conditions“. ECS Transactions 109, Nr. 11 (30.09.2022): 71–78. http://dx.doi.org/10.1149/10911.0071ecst.

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Fuel electrode materials are important for achieving higher performance and durability in solid oxide fuel cells (SOFCs), solid oxide electrolysis cells (SOECs), and reversible solid oxide cells (r-SOCs). On the other hand, the air electrode also faces performance and durability issues. For air electrodes, studies have been conducted on their performance and durability in SOFC operation, but the performance and durability of air electrodes in SOEC and r-SOC operation needs to be investigated in more detail. The electrochemical performance and durability of SOEC and r-SOC are evaluated by conducting electrolysis performance tests of LSCF-based air electrodes with different preparation conditions, electrolysis durability tests at the thermoneutral potential, and a 1000-cycle test in r-SOC mode.

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Ikegawa, Kazutaka, Kengo Miyara, Yuya Tachikawa, Stephen Matthew Lyth, Junko Matsuda und Kazunari Sasaki. „Reversible Solid Oxide Cells: Cycling and Long-Term Durability of Air Electrodes“. ECS Transactions 111, Nr. 6 (19.05.2023): 313–21. http://dx.doi.org/10.1149/11106.0313ecst.

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Durability and diffusion of various elements in the LSCF-based air electrode of reversible solid oxide cells (r-SOC) are studied. The r-SOC cycling durability tests are conducted by continuously switching between SOFC and SOEC operations. The performance and durability of air electrodes are verified especially after ca. 500 r-SOC cycles.

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Sahu, Sulata K., Dhruba Panthi, Ibrahim Soliman, Hai Feng und Yanhai Du. „Fabrication and Performance of Micro-Tubular Solid Oxide Cells“. Energies 15, Nr. 10 (12.05.2022): 3536. http://dx.doi.org/10.3390/en15103536.

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Solid Oxide Cells (SOC) are the kind of electrochemical devices that provide reversible, dual mode operation, where electricity is generated in a fuel cell mode and fuel is produced in an electrolysis mode. Our current work encompasses the design, fabrication, and performance analysis of a micro-tubular reversible SOC that is prepared through a single dip-coating technique with multiple dips using conventional materials. Electrochemical impedance and current-voltage responses were monitored from 700 to 800 °C. Maximum power densities of the cell achieved at 800, 750, and 700 °C, was 690, 546, and 418 mW cm−2, respectively. The reversible, dual mode operation of the SOC was evaluated by operating the cell using 50% H2O/H2 and ambient air. Accordingly, when the SOC was operated in the electrolysis mode at 1.3 V (the thermo-neutral voltage for steam electrolysis), current densities of −311, −487 and −684 mA cm−2 at 700, 750 and 800 °C, respectively, were observed. Hydrogen production rate was determined based on the current developed in the cell during the electrolysis operation. The stability of the cell was further evaluated by performing multiple transitions between fuel cell mode and electrolysis mode at 700 °C for a period of 500 h. In the stability test, the cell current decreased from 353 mA cm−2 to 243 mA cm−2 in the fuel cell mode operation at 0.7 V, while the same decreased from −250 mA cm−2 to −115 mA cm−2 in the electrolysis operation at 1.3 V.

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Shang, Yijing, und Ming Chen. „Phase-Field Modelling of Microstructure Evolution in Solid Oxide Cells“. ECS Meeting Abstracts MA2023-02, Nr. 46 (22.12.2023): 2253. http://dx.doi.org/10.1149/ma2023-02462253mtgabs.

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Solid Oxide Cell (SOC) is one of the most promising energy conversion devices due to its high efficiency, flexible fuel adaptability, and low pollutant emission. By changing the operation condition, the SOC can be operated as a solid oxide fuel cell (SOFC) to convert chemical energy to electricity or as a solid oxide electrolysis cell (SOEC) to store electricity in the way of chemical energy. However, the performance degradation of SOCs caused by microstructure evolution and phase transition during long-term operation, and the stress-induced structure damage limit the SOC’s lifetime. This is one of the most challenging problems to be tackled on the way to commercialize the SOC technology. To clarify degradation mechanisms and develop counter-acting measures, long-term testing combined with detailed post-mortem characterization is one common approach, but this is often associated with extensive amount of experimental work and long research time and thus very costly. Instead, many researchers have devoted their efforts to investigating the degradation phenomena using computational modelling or simulations. Phase field model, which has been widely employed to study microstructure evolution of alloy materials during solidification, aging etc., has also been utilized in the SOC research, to illustrate the microstructure evolution during long-term operation from micron to millimeter scale, with the possibility of taking into account the mechanical properties as well. In this article, the principle of the phase field method and different models are introduced first, following with detailed examples published in literature on phase field modeling of various (degradation) phenomena in SOCs. Finally, possible strategies coupling modelling and experimental research in optimizing SOC performance and microstructure is discussed.

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Yamada, Kei, Yuya Tachikawa, Stephen Matthew Lyth, Junko Matsuda und Kazunari Sasaki. „Ni-Alloy Fuel Electrodes for Reversible Solid Oxide Cells“. ECS Meeting Abstracts MA2022-02, Nr. 47 (09.10.2022): 1781. http://dx.doi.org/10.1149/ma2022-02471781mtgabs.

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Introduction Reversible solid oxide cells (r-SOCs, or solid oxide reversible cells) are devices that can efficiently operate in both fuel cell and electrolysis operating modes. It is expected that they can serve as a technology for green, flexible, and efficient energy systems coupled with renewable energy (1). However, a fuel electrode of r-SOCs might be degraded due to redox cycles in switching operation modes. In our research group, we have fabricated redox-resistant anodes with Ni-Co alloy cermet (2). Here in this study, we apply such alloy-based cermet to the fuel electrode, and evaluate electrochemical performance, reverse cycling durability, and the effect of Co addition. Moreover, we compare the cell performance of Ni-Co alloy cermet with conventional Ni-ScSZ fuel electrode. Experimental In this study, scandia-stabilized zirconia (ScSZ, 10mol% Sc2O3-1mol% CeO2-89mol% ZrO2) was used as the solid electrolyte. The powder prepared by mixing Ni-Co-based oxide powder prepared by ammonia co-precipitation with Ce0.9Gd0.1O2 (GDC) in a weight ratio of 48.1:51.9, was used as the fuel electrode material. Ni-Co-GDC fuel electrode with x mol% of Co added to Ni, is denoted as Ni(100 – x)Cox -GDC fuel electrode. The fuel electrodes of x = 0, 5, 10, and 20 were fabricated. Two types of Ni-GDC cermet were prepared. One was fabricated by using NiO powder by ammonia co-precipitation, and the other was by using commercial NiO powder (Kanto Chemical, Japan). We prepared the Ni-Co alloy cermet by mixing powder and binder, preparing and printing electrode paste on the electrolyte plate, followed by heat treatment. (La0.6Sr0.4)(Co0.2Fe0.8)O3 (LSCF) was used as the air electrode material. The electrochemical characteristics and r-SOC reversible cycle durability of the fuel electrodes were evaluated under the condition at an operating temperature of 800℃, while 100 ml/min of 50%-humidified hydrogen fuel was supplied to the fuel electrode, and 150 ml/min of air was supplied to the air electrode. Electrochemical characteristics were evaluated by electrochemical impedance measurements (1255WB, Solartron, UK), which separate ohmic and non-ohmic resistances. The durability in reverse r-SOC operation was evaluated by repeatedly varying current density within ± 0.2 A cm-2 at a current sweep rate of 1.56 mA cm-2 s-1 up to 1,000 cycles. The degradation was evaluated by averaging the percentage change in fuel electrode potential at ± 0.2 A cm-2. Results and discussion Figure 1 shows the initial performance of the cells with each fuel electrode. Figure 2 shows the degradation of each fuel electrode within 1,000 cycles after the r-SOC reverse durability test. The initial performance of Ni-Co-GDC was superior to Ni-ScSZ, and it increased with decreasing Co content. Two types of Ni-GDC exhibited identical performance. Similarly, the r-SOC reverse durability of Ni-Co-GDC was superior to Ni-ScSZ, and it increased with decreasing Co content. Furthermore, two types of Ni-GDC exhibited almost the same durability. These results indicate that GDC contributes to the increased cell performance and durability rather than alloying or the feature of original NiO powder. It appears that Co is not essential for r-SOC fuel electrodes in terms of r-SOC durability. However, fuel electrode materials should be selected by comprehensively considering the performance and the durability at both SOFC and SOEC modes. As Ni-Co alloy shows higher redox cycle durability compared with Ni-GDC (3), Ni-Co alloy is still one of the promising materials for r-SOC fuel electrodes. Acknowledgements A part of this study was supported by “Research and Development Program for Promoting Innovative Clean Energy Technologies Through International Collaboration” of the New Energy and Industrial Technology Development Organization (NEDO). References N. Q. Minh and M. B. Mogensen, Electrochem. Soc. Interface, 22, 55 (2013). Y. Ishibashi, S. Futamura, Y. Tachikawa, J. Matsuda, Y. Shiratori, S. Taniguchi, and K. Sasaki, J. Electrochem. Soc., 167, 124517 (2020). K. Matsumoto, Y. Tachikawa, J. Matsuda, S. Taniguchi, and K. Sasaki, ECS Trans., 103, 1549 (2021). Figure 1

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Sasaki, Kazunari, Katsuya Natsukoshi, Kei Yamada, Kazutaka Ikegawa, Masahiro Yasutake, Yuya Tachikawa, Stephen Matthew Lyth, Junko Matsuda, Bilge Yildiz und Harry L. Tuller. „Reversible Solid Oxide Cells: Selection of Fuel Electrode Materials for Improved Performance and Durability“. ECS Transactions 111, Nr. 6 (19.05.2023): 1901–6. http://dx.doi.org/10.1149/11106.1901ecst.

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Different fuel electrodes for reversible solid oxide cells (r-SOC) are investigated with the aim of improving performance in both solid oxide electrolysis cell (SOEC) and solid oxide fuel cell (SOFC) modes, and durability in reversible operation mode. Electrodes based on gadolinium-doped ceria (GDC) as a mixed ionic electronic conductor, and lanthanum-doped strontium titanate (LST) as an electronic conductor are selected. The current-voltage characteristics of r-SOC single cells, and their cycling durability up to 1000 cycles are evaluated. LST-GDC co-impregnated with Ni and GDC prove to be highly durable in reversible operation, as a suitable fuel electrode material for r-SOCs.

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Kupecki, Jakub, Konrad Motyliński, Marek Skrzypkiewicz, Michał Wierzbicki und Yevgeniy Naumovich. „Preliminary Electrochemical Characterization of Anode Supported Solid Oxide Cell (AS-SOC) Produced in the Institute of Power Engineering Operated in Electrolysis Mode (SOEC)“. Archives of Thermodynamics 38, Nr. 4 (20.12.2017): 53–63. http://dx.doi.org/10.1515/aoter-2017-0024.

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Abstract The article discusses the operation of solid oxide electrochemical cells (SOC) developed in the Institute of Power Engineering as prospective key components of power-to-gas systems. The fundamentals of the solid oxide cells operated as fuel cells (SOFC - solid oxide fuel cells) and electrolysers (SOEC - solid oxide fuel cells) are given. The experimental technique used for electrochemical characterization of cells is presented. The results obtained for planar cell with anodic support are given and discussed. Based on the results, the applicability of the cells in power-to-gas systems (P2G) is evaluated.

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Shang, Yijing, und Ming Chen. „Phase-Field Modelling of Microstructure Evolution in Solid Oxide Cells“. ECS Transactions 112, Nr. 5 (29.09.2023): 103–20. http://dx.doi.org/10.1149/11205.0103ecst.

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The performance degradation of Solid Oxide Cells (SOC) caused by microstructure evolution limits the SOC’s lifetime. Long-term testing combined with post-mortem characterization is one common approach to clarify degradation mechanisms and develop counter-acting measures, but this is associated with extensive amount of experimental work and long research time. Instead, many researchers have devoted their efforts to investigating degradation using computational methods. The phase-field model has been utilized in the SOC research to illustrate the microstructure evolution during long-term operation from micron to millimeter scale, with the possibility of taking into account the mechanical properties as well. In this article, the principle of the phase-field method and different models are introduced first, followed by examples published in literature on phase-field modeling of various degradation phenomena in SOCs. Finally, possible strategies coupling modelling and experimental research in optimizing SOC performance and microstructure are discussed.

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Zhao, Chenhuan, Yifeng Li, Wenqiang Zhang, Yun Zheng, Xiaoming Lou, Bo Yu, Jing Chen, Yan Chen, Meilin Liu und Jianchen Wang. „Heterointerface engineering for enhancing the electrochemical performance of solid oxide cells“. Energy & Environmental Science 13, Nr. 1 (2020): 53–85. http://dx.doi.org/10.1039/c9ee02230a.

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Dissertationen zum Thema "Solid Oxide Cells (SOC)"

Nelson, George Joseph. „Solid Oxide Cell Constriction Resistance Effects“. Thesis, Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/10563.

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Solid oxide cells are best known in the energy sector as novel power generation devices through solid oxide fuel cells (SOFCs), which enable the direct conversion of chemical energy to electrical energy and result in high efficiency power generation. However, solid oxide electrolysis cells (SOECs) are receiving increased attention as a hydrogen production technology through high temperature electrolysis applications. The development of higher fidelity methods for modeling transport phenomena within solid oxide cells is necessary for the advancement of these key technologies. The proposed thesis analyzes the increased transport path lengths caused by constriction resistance effects in prevalent solid oxide cell designs. Such effects are so named because they arise from reductions in active transport area. Constriction resistance effects of SOFC geometry on continuum level mass and electronic transport through SOFC anodes are simulated. These effects are explored via analytic solutions of the Laplace equation with model verification achieved by computational methods such as finite element analysis (FEA). Parametric studies of cell geometry and fuel stream composition are performed based upon the models developed. These studies reveal a competition of losses present between mass and electronic transport losses and demonstrate the benefits of smaller SOFC unit cell geometry. Furthermore, the models developed for SOFC transport phenomena are applied toward the analysis of SOECs. The resulting parametric studies demonstrate that geometric configurations that demonstrate enhanced performance within SOFC operation also demonstrate enhanced performance within SOEC operation. Secondarily, the electrochemical degradation of SOFCs is explored with respect to delamination cracking phenomena about and within the critical electrolyte-anode interface. For thin electrolytes, constriction resistance effects may lead to the loss of electro-active area at both anode-electrolyte and cathode-electrolyte interfaces. This effect (referred to as masking) results in regions of unutilized electrolyte cross-sectional area, which can be a critical performance hindrance. Again analytic and computational means are employed in analyzing such degradation issues.

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Chien, Chang-Yin. „Methane and Solid Carbon Based Solid Oxide Fuel Cells“. University of Akron / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=akron1299670407.

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Torres-Caceres, Jonathan. „Manufacturing of Single Solid Oxide Fuel Cells“. Master's thesis, University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/5875.

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Solid oxide fuel cells (SOFCs) are devices that convert chemical energy into electrical energy and have the potential to become a reliable renewable energy source that can be used on a large scale. SOFCs have 3 main components; the electrolyte, the anode, and the cathode. Typically, SOFCs work by reducing oxygen at the cathode into O2- ions which are then transported via the electrolyte to the anode to combine with a fuel such as hydrogen to produce electricity. Research into better materials and manufacturing methods is necessary to reduce costs and improve efficiency to make the technology commercially viable. The goal of the research is to optimize and simplify the production of single SOFCs using high performance ceramics. This includes the use of 8mol% Y2O3-ZrO2 (YSZ) and 10mol% Sc2O3-1mol%CeO2-ZrO2 (SCSZ) layered electrolytes which purport higher conductivity than traditional pure YSZ electrolytes. Prior to printing the electrodes onto the electrolyte, the cathode side of the electrolyte was coated with 20mol% Gd2O3-CeO2 (GDC). The GDC coating prevents the formation of a nonconductive La2Zr2O7 pyrochlore layer, which forms due to the interdiffusion of the YSZ electrolyte ceramic and the (La0.6Sr0.4)0.995Fe0.8Co0.2O3 (LSCF) cathode ceramic during sintering. The GDC layer was deposited by spin coating a suspension of 10wt% GDC in ethanol onto the electrolyte. Variation of parameters such as time, speed, and ramp rate were tested. Deposition of the electrodes onto the electrolyte surface was done by screen printing. Ink was produced using a three roll mill from a mixture of ceramic electrode powder, terpineol, and a pore former. The pore former was selected based on its ability to form a uniform well-connected pore matrix within the anode samples that were pressed and sintered. Ink development involved the production of different ratios of powder-to-terpineol inks to vary the viscosity. The different inks were used to print electrodes onto the electrolytes to gauge print quality and consistency. Cells were produced with varying numbers of layers of prints to achieve a desirable thickness. Finally, the densification behaviors of the major materials used to produce the single cells were studied to determine the temperatures at which each component needs to be sintered to achieve the desired density and to determine the order of electrode application, so as to avoid over-densification of the electrodes. Complete cells were tested at the National Energy Technology Laboratory in Morgantown, WV. Cells were tested in a custom-built test stand under constant voltage at 800°C with 3% humidified hydrogen as the fuel. Both voltage-current response and impedance spectroscopy tests were conducted after initial startup and after 20 hours of operation. Impedance tests were performed at open circuit voltage and under varying loads in order to analyze the sources of resistance within the cell. A general increase in impedance was found after the 20h operation. Scanning electron micrographs of the cell microstructures found delamination and other defects which reduce performance. Suggestions for eradicating these issues and improving performance have been made.
M.S.M.E.
Masters
Mechanical and Aerospace Engineering
Engineering and Computer Science
Mechanical Engineering; Mechanical Systems

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Choi, Hyunkyu. „Perovskite-type oxide material as electro-catalysts for solid oxide fuel cells“. The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1354652812.

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Zalar, Frank M. „Model and theoretical simulation of solid oxide fuel cells“. Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1189691948.

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Johnson, Janine B. „Fracture Failure of Solid Oxide Fuel Cells“. Thesis, Georgia Institute of Technology, 2004. http://hdl.handle.net/1853/4847.

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Among all existing fuel cell technologies, the planar solid oxide fuel cell (SOFC) is the most promising one for high power density applications. A planar SOFC consists of two porous ceramic layers (the anode and cathode) through which flows the fuel and oxidant. These ceramic layers are bonded to a solid electrolyte layer to form a tri-layer structure called PEN (positive-electrolyte-negative) across which the electrochemical reactions take place to generate electricity. Because SOFCs operate at high temperatures, the cell components (e.g., PEN and seals) are subjected to harsh environments and severe thermomechanical residual stresses. It has been reported repeatedly that, under combined thermomechanical, electrical and chemical driving forces, catastrophic failure often occurs suddenly due to material fracture or loss of adhesion at the material interfaces. Unfortunately, there have been very few thermomechanical modeling techniques that can be used for assessing the reliability and durability of SOFCs. Therefore, modeling techniques and simulation tools applicable to SOFC will need to be developed. Such techniques and tools enable us to analyze new cell designs, evaluate the performance of new materials, virtually simulate new stack configurations, as well as to assess the reliability and durability of stacks in operation. This research focuses on developing computational techniques for modeling fracture failure in SOFCs. The objectives are to investigate the failure modes and failure mechanisms due to fracture, and to develop a finite element based computational method to analyze and simulate fracture and crack growth in SOFCs. By using the commercial finite element software, ANSYS, as the basic computational tool, a MatLab based program has been developed. This MatLab program takes the displacement solutions from ANSYS as input to compute fracture parameters. The individual stress intensity factors are obtained by using the volume integrals in conjunction with the interaction integral technique. The software code developed here is the first of its kind capable of calculating stress intensity factors for three-dimensional cracks of curved front experiencing both mechanical and non-uniform temperature loading conditions. These results provide new scientific and engineering knowledge on SOFC failure, and enable us to analyze the performance, operations, and life characteristics of SOFCs.

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Guzman, Montanez Felipe. „SAMARIUM-BASED INTERMEDIATE TEMPERATURE SOLID OXIDE FUEL CELLS“. University of Akron / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=akron1134056820.

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Bedon, Andrea. „Advanced materials for Solid Oxide Fuel Cells innovation: reversible and single chamber Solid Oxide Fuel Cells, frontiers in sustainable energy“. Doctoral thesis, Università degli studi di Padova, 2018. http://hdl.handle.net/11577/3426788.

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The energy transition is changing the way we use, convert and store energy for all our purposes. It is a process driven by an increased acknowledgement of the relevant consequences of the current heavy use of fossil energy sources, and it is not clear where it will lead. Several technologies have been proposed as the best choice for the future of energy. Among them, Solid Oxide Fuel Cells (SOFCs) deserve a considerable attention. They are high temperature devices able to convert a variety of fuels (hydrogen, methanol, hydrocarbons, etc.) into electrical energy, with efficiencies that reach 90% when coupled with a heat recovery system. They can also be operated reversibly as Solid Oxide Electrolysis Cells (SOECs) and store electrical energy as fuels, so they can easily absorb the fluctuations of renewable energy production and save the energy until it is needed. Because of the high temperature of operation, they do not require noble metals. The SOFC technology is not mature yet for a large scale diffusion, but there is an intensive research towards this target. One of the main drawbacks of SOFCs is the short device life compared to the high costs, due to premature degradation of some cell components. This work of thesis is an attempt to increase economic convenience of SOFCs, by researching more stable materials and by decreasing the device costs. Particular attention has been devoted to find materials that are suitable for operation in reversible cells and Single Chamber cells (SC-SOFCs), two highly innovative variants of the basic SOFCs. A particular approach for the design of new materials has been proposed, consisting in coupling a Mixed Ionic Electronic Conductive (MIEC) substrate with an active phase, specifically chosen to obtain the properties desired for the respective application. The LSGF perovskite (La0.6Sr0.4Ga0.3Fe0.7O3) has been synthesized and fully characterized as the MIEC substrate. Then, it has been impregnated with cheap manganese and iron oxide, and the two different nanocomposites were studied in depth. Their activity as fuel cell electrodes has been tested, and very interesting performance of the iron composite as cathode and the manganese composite as anode has been recorded. A fuel cell based on LSGM electrolyte, with LSGF composite electrodes has been fabricated and successfully tested. The high homogeneity of this cell, that features very similar materials both as electrode and electrolyte, should prevent the formation of any insulating phase, and the nickel-free anode avoids problems related to nickel coarsening, so a higher durability of the device is guaranteed. LSGF has been tested as an electrode material for symmetric reversible cells, and promising results were obtained. A fully selective cathode material has been designed from Ca2FeAl0.95Mg0.05O5 brownmillerite, that has been impregnated with iron oxide. Decent performances were obtained, in spite of the relevant cheapness of the used elements. Preliminary results indicate that such a material could be used to operate SC-SOFCs without the extensive fuel losses that current state-of-the-art material cause.
La transizione energetica sta cambiando il modo in cui usiamo, convertiamo e immagazziniamo l’energia per tutti i nostri scopi. Si tratta di un processo spinto dal crescente riconoscimento delle rilevanti conseguenze che l’attuale uso intensivo di fonti energetiche fossili comporta, e non è ancora chiaro esattamente a che situazione porterà. Sono molte le tecnologie che di volta in volta si trovano proposte come la soluzione principe per il futuro dell’energia. Tra di esse, le celle a combustibile a ossido solido (SOFC) meritano particolare attenzione. Sono dispositivi ad alta temperatura, in grado di convertire diverse tipologie di combustibili (idrogeno, metanolo, idrocarburi…) in energia elettrica, con efficienze che possono raggiungere il 90% se accoppiate con sistemi di recupero del calore. Queste celle a combustibile si possono operare anche reversibilmente come elettrolizzatori allo stato solido. Possono perciò immagazzinare energia elettrica come combustibile in modo da assorbire le fluttuazioni a cui è sottoposta la produzione di elettricità da fonti rinnovabili, fino al momento in cui c’è bisogno. Per via della alta temperatura operativa, non richiedono metalli nobili. La tecnologia delle SOFC non è ancora matura per una diffusione in larga scala, ma la ricerca in questo senso è intensa. Uno dei difetti principali di questi dispositivi è la ristretta vita operativa paragonata agli alti costi, a causa della degradazione prematura di alcuni componenti. Questo lavoro di tesi è un tentativo verso il miglioramento della sostenibilità economica delle SOFC, attraverso la ricerca di materiali più stabili e che permettano soluzioni più economiche. Particolare attenzione è stata riservata allo sviluppo di materiali adatti a operare in celle reversibili e a camera singola (SC-SOFC), due varianti innovative della SOFC di base. È stato proposto l’utilizzo di un approccio mirato per la progettazione dei nuovi materiali, consistente nell’accoppiamento di una fase conduttrice mista ionica ed elettronica (MIEC) che funge da substrato per una fase attiva, specificamente scelta per ottenere le proprietà ricercate per la rispettiva applicazione. La perovskite LSGF (La0.6Sr0.4Ga0.3Fe0.7O3) è stata sintetizzata e completamente caratterizzata come substrato a conduttività mista. Successivamente, è stata impregnata con ossidi di manganese e ferro, in virtù anche della loro economicità, e i due differenti nanocompositi così ottenuti sono stati studiati in dettaglio. La loro attività come elettrodi per celle a combustibile è stata testata, e si sono registrate prestazioni interessanti del nanocomposito con ferro come catodo e del nanocomposito con manganese come anodo. Una cella a combustibile basata su elettrolita LSGM e con elettrodi compositi a base LSGF è stata preparata e testata con successo. L’altissima omogeneità strutturale di questa cella, che sfrutta materiali molto simili sia come elettrolita che come elettrodi, sarebbe in grado di prevenire la formazione di qualsiasi fase isolante. Gli anodi privi di nichel evitano ogni problema legato all’accrescimento delle particelle di metallo, assicurando al dispositivo una migliore durabilità. LSGF è stato testato come materiale elettrodico per celle simmetriche reversibili, ottenendo risultati promettenti. Un materiale catodico interamente selettivo è stato sviluppato a partire dalla brownmillerite Ca2FeAl0.95Mg0.05O5, impregnata a sua volta con ossido di ferro. Con questo materiale si sono ottenute prestazioni discrete, nonostante l’economicità evidente degli elementi utilizzati. I risultati preliminari indicano che tali materiali potrebbero essere utilizzati per celle a camera singola evitando le ampie perdite di combustibile, inevitabili con l’uso dei catodi dell’attuale stato dell’arte.

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Mirzababaei, Jelvehnaz. „Solid Oxide Fuel Cells with Methane and Fe/Ti Oxide Fuels“. University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1415461807.

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Ford, James Christopher. „Thermodynamic optimization of a planar solid oxide fuel cell“. Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45843.

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Solid oxide fuel cells (SOFCs) are high temperature (600C-1000C) composite metallic/ceramic-cermet electrochemical devices. There is a need to effectively manage the heat transfer through the cell to mitigate material failure induced by thermal stresses while yet preserving performance. The present dissertation offers a novel thermodynamic optimization approach that utilizes dimensionless geometric parameters to design a SOFC. Through entropy generation minimization, the architecture of a planar SOFC has been redesigned to optimally balance thermal gradients and cell performance. Cell performance has been defined using the 2nd law metric of exergetic efficiency. One constrained optimization problem was solved. The optimization sought to maximize exergetic efficiency through minimizing total entropy production while constraining thermal gradients. Optimal designs were produced that had exergetic efficiency exceeding 92% while maximum thermal gradients were between 219 C/m and 1249 C/m. As the architecture was modified, the magnitude of sources of entropy generation changed. Ultimately, it was shown that the architecture of a SOFC can be modified through thermodynamic optimization to maximize performance while limiting thermal gradients. The present dissertation highlights a new design methodology and provides insights on the connection between thermal gradients, performance, sources of entropy generation, and cell architecture.

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Bücher zum Thema "Solid Oxide Cells (SOC)"

Maric, Radenka, und Gholamreza Mirshekari. Solid Oxide Fuel Cells. First edition. | Boca Raton, FL : CRC Press/Taylor & Francis Group, LLC, 2020. | Series: Electrochemical energy storage & conversion: CRC Press, 2020. http://dx.doi.org/10.1201/9780429100000.

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Ni, Meng, und Tim S. Zhao, Hrsg. Solid Oxide Fuel Cells. Cambridge: Royal Society of Chemistry, 2013. http://dx.doi.org/10.1039/9781849737777.

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Ishihara, Tatsumi, Hrsg. Perovskite Oxide for Solid Oxide Fuel Cells. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-77708-5.

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Perovskite oxide for solid oxide fuel cells. Dordrecht: Springer, 2009.

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Bove, Roberto, und Stefano Ubertini, Hrsg. Modeling Solid Oxide Fuel Cells. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6995-6.

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Shao, Zongping, und Moses O. Tadé. Intermediate-Temperature Solid Oxide Fuel Cells. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-52936-2.

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Bansal, Narottam P., Prabhakar Singh, Sujanto Widjaja und Dileep Singh, Hrsg. Advances in Solid Oxide Fuel Cells VII. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9781118095249.

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Bansal, Narottam P., Prabhakar Singh, Dileep Singh und Jonathan Salem, Hrsg. Advances in Solid Oxide Fuel Cells V. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470584316.

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He, Weidong, Weiqiang Lv und James Dickerson. Gas Transport in Solid Oxide Fuel Cells. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-09737-4.

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Bansal, Narottam P., Jonathan Salem und Dongming Zhu, Hrsg. Advances in Solid Oxide Fuel Cells III. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470339534.

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Buchteile zum Thema "Solid Oxide Cells (SOC)"

Zuo, Chendong, Mingfei Liu und Meilin Liu. „Solid Oxide Fuel Cells“. In Sol-Gel Processing for Conventional and Alternative Energy, 7–36. Boston, MA: Springer US, 2012. http://dx.doi.org/10.1007/978-1-4614-1957-0_2.

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Lim, Hui Hui, Erick Sulistya, May Yuan Wong, Babak Salamatinia und Bahman Amini Horri. „Ceramic Nanocomposites for Solid Oxide Fuel Cells“. In Sol-gel Based Nanoceramic Materials: Preparation, Properties and Applications, 157–83. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-49512-5_6.

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Yoshida, Hiroyuki, Mitsunobu Kawano, Koji Hashino, Toru Inagaki, Seiichi Suda, Koichi Kawahara, Hiroshi Ijichi und Hideyuki Nagahara. „Microstructure Analysis on Network-Structure Formation of SOFC Anode from NiO-SDC Composite Particles Prepared by Spray Pyrolysis Technique“. In Advances in Solid Oxide Fuel Cells IV, 193–202. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2009. http://dx.doi.org/10.1002/9780470456309.ch18.

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Fujimoto, Tatsuo, Masashi Nakabayashi, Hiroshi Tsuge, Masakazu Katsuno, Shinya Sato, Shoji Uhsio, Komomo Tani, Hirokastu Yashiro, Hosei Hirano und Takayuki Yano. „The Effects Of Excess Silicon And Carbon In SiC Source Materials On Sic Single Crystal Growth In Physical Vapour Transport Method“. In Advances in Solid Oxide Fuel Cells and Electronic Ceramics, 115–27. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2015. http://dx.doi.org/10.1002/9781119211501.ch12.

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Bao, Wei Tao, Jian Feng Gao und Guang Yao Meng. „Preparation of SDC Interlayer and Influence on Performances of Anode Supported Solid Oxide Fuel Cells“. In Key Engineering Materials, 486–89. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.486.

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Kawahara, Koichi, Seiichi Suda, Seiji Takahashi, Mitsunobu Kawano, Hiroyuki Yoshida und Toru Inagaki. „Control of Microstructure of NiO-SDC Composite Particles for Development of High Performance SOFC Anodes“. In Advances in Solid Oxide Fuel Cells II: Ceramic Engineering and Science Proceedings, Volume 27, Issue 4, 183–91. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470291337.ch18.

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Atkinson, A., S. J. Skinner und J. A. Kilner. „Solid Oxide Fuel Cells“. In Fuel Cells, 657–85. New York, NY: Springer New York, 2012. http://dx.doi.org/10.1007/978-1-4614-5785-5_19.

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Dey, Shoroshi, Jayanta Mukhopadhyay und Abhijit Das Sharma. „Efficiency of the Solid Oxide Cell (SOC) Using Nanocrystalline Mixed Ionic and Electronic Conducting (MIEC) Oxides as Air Electrode Materials in Conjunction with Doped Ceria-Based Interlayers“. In Applications of Microscopy in Materials and Life Sciences, 43–53. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2982-2_5.

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Song, Jia-Liang, Hua Chen, Yong-Dong Chen, Gai-Ge Yu, Hong-Wei Zou und Bing-Chuan Han. „Coupled Heat Transfer Characteristics of SiC High Temperature Heat Exchanger in Solid Oxide Fuel Cell“. In Proceedings of the 10th Hydrogen Technology Convention, Volume 1, 200–213. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8631-6_23.

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AbstractHigh temperature heat exchanger is a crucial equipment in the BOP of SOFC. Replacing the commonly used metal materials with high-temperature resistant SiC ceramic materials for the manufacturing of SOFC high-temperature heat exchanger is a revolutionary technology with great application potential. This paper focused on SiC-based cathodic air preheater which is a novel SOFC high temperature heat exchanger, and firstly investigated the coupled radiation-conduction-convection heat transfer characteristics between flue gas and air at extremely high temperature conditions. The DO model in ANSYS Fluent was utilized to analyze the radiation heat transfer characteristics of high-temperature flue gas and the effect of gas absorption coefficient, and the simulation results were compared with the S2S model and non-radiation model. The results showed that radiation heat transfer cannot be ignored at high flue gas inlet temperature. With flue gas inlet temperature in the range of 800–1100 °C and low air/flue gas flow rate ratio, the gas radiation heat transfer and the effect of flue gas absorption coefficient can be ignored.

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Sammes, Nigel M., Kevin Galloway, Mustafa F. Serincan, Toshio Suzuki, Toshiaki Yamaguchi, Masanobu Awano und Whitney Colella. „Solid Oxide Fuel Cells“. In Handbook of Climate Change Mitigation and Adaptation, 3087–112. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-14409-2_44.

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Konferenzberichte zum Thema "Solid Oxide Cells (SOC)"

Park, Kwangjin, Yu-Mi Kim und Joongmyeon Bae. „Performance Behavior for Solid Oxide Electrolysis Cells“. In ASME 2009 7th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2009. http://dx.doi.org/10.1115/fuelcell2009-85071.

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The performance behavior of solid oxide electrolysis cell (SOEC) was investigated. Initial performance of the cell as solid oxide fuel cell (SOFC) mode at 800°C was measured as 0.15 W/cm2. The SOEC showed the stable performance during 5 hours operation at −0.15A/cm2. The power for electrolysis was increased during the first 30 minutes operation due to the increase of internal resistance of the cell. After 5 hours operation, the degradation rate of SOEC performance was about 3% due to redox reaction of hydrogen electrode.

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Wang, Kang, Pingying Zeng und Jeongmin Ahn. „Performance Investigation of YSZ-SDC Solid Oxide Fuel Cells“. In ASME 2012 10th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2012 6th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/fuelcell2012-91429.

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This work presents the performance of YSZ-SDC multilayered anode-supported solid oxide fuel cell (AS-SOFC). The anode-supported SOFC showed an extraordinary fuel cell performance of ∼1.57 W/cm2 by wet spraying a SDC layer onto YSZ layer. It was found that the fuel cell performance varied with the sintering temperature of fuel cell. At the high sintering temperatures, the reactions between YSZ and SDC have a significant effect on the fuel cell performance.

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Wilhelm, Cole, Kenta Tamaoki, Hisashi Nakamura und Jeongmin Ahn. „Investigation of Ammonia as a Fuel for Solid Oxide Fuel Cells“. In ASME Power Applied R&D 2023. American Society of Mechanical Engineers, 2023. http://dx.doi.org/10.1115/power2023-108936.

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Abstract Decreasing the generation of CO2 from energy production is a key area in energy research and environmental sustainability. Fuel cells represent a solution to reducing CO2 generation through the use of hydrogen fuel to generate electricity. However, the widespread use of hydrogen fueled fuel cells is generally limited by difficulty of hydrogen storage, transportation, and synthesis. One promising option to address these difficulties is the use of ammonia (NH3) in solid oxide fuel cells (SOFCs), which allows for storage of a liquid fuel source, rather than the highly compressed gaseous fuel. Sourcing hydrogen from ammonia rather than from fossil fuel reformation eliminates the possibility of CO2 generation from SOFC usage. Previous work has proven the ability to generate hydrogen from ammonia at high temperatures in a micro flow reactor (MFR) at high equivalence ratio. The current work seeks to apply a similar methodology directly to standard SOFCs for electricity generation. Construction of the planar SOFC includes a nickel-yttria stabilized zirconia (Ni-YSZ) anode, YSZ electrolyte layer, samarium doped ceria (SDC) electrolyte buffer layer, and lanthanum strontium cobalt ferrite-SDC (LSCF-SDC) cathode layer. A model ammonia exhaust based on the MFR exhaust for equivalence ratio of 4 from the previous work is used. A mixture of NH3, H2, and N2 simulates the MFR exhaust and is supplied to the SOFC. N2 is used to account for all MFR exhaust species outside of NH3 and H2. Testing is completed in a tubular furnace in order to maintain a controlled temperature, with oxygen being supplied to the cathode by ambient air. The buffer-layer SOFC showed high performance on pure H2 at 1V OCV and 343mW/cm2 power density. The performance decreases on model exhaust, but maintains 0.9V OCV and 128mW/cm2 power density. This showcases the ability of SOFCs to generate power from a NH3 supply that primarily contains N2.

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Nelson, George, und Comas Haynes. „Parametric Studies of Constriction Resistance Effects Upon Solid Oxide Cell Transport Phenomena“. In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-15100.

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The competition between mass transfer and electronic resistance effects arising from solid oxide cell interconnect geometry has been initially explored through parametric studies based on a design of experiments (DOE) approach. These studies have demonstrated the advantages of smaller interconnect-fuel stream total width and the increased dominance of mass transport as a limiting factor at low fuel stream hydrogen compositions. In addition to the direct effects of solid oxide fuel cell (SOFC) interconnect geometry on mass and electronic transport phenomena, the compounded effects of fuel stream concentration and cell current loading are considered. Finally, the parametric studies conducted for SOFC operation have been applied to the operation of solid oxide electrolysis cells (SOECs). These additional studies have demonstrated that interconnect designs that benefit SOFC performance are mutually beneficial for SOEC performance.

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Wang, Caisheng, und M. Hashem Nehrir. „Load Transient Mitigation for Solid Oxide Fuel Cells“. In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97268.

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A load transient mitigation scheme is proposed in this paper for stand-alone solid oxide fuel cell (SOFC)-battery power systems. The scheme is based on low-pass filtering of load transients and fuel cell current control. The fuel cell is controlled in such a way to provide the steady-state load, while the battery will supply the transient load. The technique can be used to improve the output power quality of the overall system as well as the SOFC durability by mitigating the stresses on SOFC caused by the load transients. Simulation studies have been carried out to verify the proposed technique. Simulation results show the effectiveness of the proposed technique, which prevents the load transient to affect the fuel cell performance.

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Karl, Ju¨rgen, Nadine Frank, Sotiris Karellas, Mathilde Saule und Ulrich Hohenwarter. „Conversion of Syngas From Biomass in Solid Oxide Fuel Cells“. In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97089.

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Conversion of biomass in syngas by means of indirect gasification offers the option to improve the economic situation of any fuel cell systems due to lower costs for feedstock and higher power revenues in many European countries. The coupling of an indirect gasification of biomass and residues with highly efficient SOFC systems is therefore a promising technology for reaching economic feasibility of small decentralized combined heat and power production (CHP). The predicted efficiency of common high temperature fuel cell systems with integrated gasification of solid feedstock is usually significantly lower than the efficiency of fuel cells operated with hydrogen or methane. Additional system components like the gasifier, as well as the gas cleaning reduce this efficiency. Hence common fuel cell systems with integrated gasification of biomass will hardly reach electrical efficiencies above 30 percent. An extraordinary efficient combination is achieved in case that the fuel cells waste heat is used in an indirect gasification system. A simple combination of a SOFC and an allothermal gasifier enables then electrical efficiencies above 50%. But this systems requires an innovative cooling concept for the fuel cell stack. Another significant question is the influence of impurities on the fuel cells degradation. The European Research Project ‘BioCellus’ focuses on both questions — the influence of the biogenious syngas on the fuel cells and an innovative cooling concept based on liquid metal heat pipes. First experiments showed that in particular higher hydrocarbons — the so-called tars — do not have an significant influence on the performance of SOFC membranes. The innovative concept of the TopCycle comprises to heat an indirect gasifier with the exhaust heat of the fuel cell by means of liquid metal heat pipes. Internal cooling of the stack and the recirculation of waste heat increases the system efficiency significantly. This concept promises electrical efficiencies of above 50 percent even for small-scale systems without any combined processes.

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Sohal, M. S., J. E. O’Brien, C. M. Stoots, V. I. Sharma, B. Yildiz und A. Virkar. „Degradation Issues in Solid Oxide Cells During High Temperature Electrolysis“. In ASME 2010 8th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2010. http://dx.doi.org/10.1115/fuelcell2010-33332.

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Idaho National Laboratory (INL) is performing high-temperature electrolysis (HTE) research to generate hydrogen using solid oxide electrolysis cells (SOECs). The project goals are to address the technical and degradation issues associated with the SOECs. This paper provides a summary of ongoing INL and INL-sponsored activities aimed at addressing SOEC degradation. These activities include stack testing, post-test examination, degradation modeling, and issues that need to be addressed in the future. Major degradation issues relating to solid oxide fuel cells (SOFC) are relatively better understood than those for SOECs. Some of the degradation mechanisms in SOFCs include contact problems between adjacent cell components, microstructural deterioration (coarsening) of the porous electrodes, and blocking of the reaction sites within the electrodes. Contact problems include delamination of an electrode from the electrolyte, growth of a poorly (electronically) conducting oxide layer between the metallic interconnect plates and the electrodes, and lack of contact between the interconnect and the electrode. INL’s test results on HTE using solid oxide cells do not provide clear evidence as to whether different events lead to similar or drastically different electrochemical degradation mechanisms. Post-test examination of the SOECs showed that the hydrogen electrode and interconnect get partially oxidized and become nonconductive. This is most likely caused by the hydrogen stream composition and flow rate during cooldown. The oxygen electrode side of the stacks seemed to be responsible for the observed degradation because of large areas of electrode delamination. Based on the oxygen electrode appearance, the degradation of these stacks was largely controlled by the oxygen electrode delamination rate. Virkar et al. [19–22] have developed a SOEC model based on concepts in local thermodynamic equilibrium in systems otherwise in global thermodynamic nonequilibrium. This model is under continued development. It shows that electronic conduction through the electrolyte, however small, must be taken into account for determining local oxygen chemical potential within the electrolyte. The chemical potential within the electrolyte may lie out of bounds in relation to values at the electrodes in the electrolyzer mode. Under certain conditions, high pressures can develop in the electrolyte just under the oxygen electrode (anode)/electrolyte interface, leading to electrode delamination. This theory is being further refined and tested by introducing some electronic conduction in the electrolyte.

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Menzer, Sophie, Grover Coors, Dustin Beeaff und Dan Storjohann. „Development of Low-Cost Anode Material for Solid Oxide Fuel Cells“. In ASME 2008 6th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2008. http://dx.doi.org/10.1115/fuelcell2008-65099.

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Manufacturing cost remains one of the major issues facing the solid oxide fuel cell (SOFC) industry. In the anode supported SOFC design, the cermet anode constitutes around 90% of the total material required to build a cell, making the technology very sensitive to anode raw material price. A new patent-pending process called “nickel yttria reaction-sintered zirconia (NiYRSZ)” has been developed for manufacturing SOFC anodes at a fraction of the cost. Typically, the solid component of the anode consists of about 50/50 volume percent nickel and 8 mole percent yttria stabilized zirconia, the latter being a rather costly material. It was discovered that zirconia and yttria powders sintered in the presence of nickel oxide readily form the cubic phase at moderate temperature. Cells manufactured using this process show excellent microstructures for anode supports: a strong bond between the electrolyte and the anode, and a high porosity without addition of pore formers. The strength of the anode was 100 MPa making the material equivalent or slightly superior to an anode fabricated with the traditional NiO/8YSZ material of similar porosity. The resistivity of the material was measured at 850°C and found to be less than 2 mΩ·cm. Cell performance was also compared to cells manufactured with traditional material. Every indication is that SOFC anodes fabricated with this new method perform as well as anodes made with the conventional material set.

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Shakrawar, S., J. G. Pharoah, B. A. Peppley und S. B. Beale. „A Review of Stress Analysis Issues for Solid Oxide Fuel Cells“. In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-40968.

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Solid oxide fuel cells represent a potentially important application for ceramic materials. There are, however, some significant issues which can affect the reliability and durability of the cell. The generation of stresses and associated strains in fuel cells is an important concern that needs to be addressed in order to avoid mechanical failure of the cell. Few comprehensive studies have been published on the subject of stress analysis of planar and tubular SOFCs to-date, although various numerical methodologies have been used to obtaining the stress distribution in specific SOFC components over the last 10 years. The objective of this paper is to summarize the state-of-the art of solid oxide fuel cell stress analysis efforts so that the salient issues can be identified.

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Schiller, Günter, Rudolf Henne, Michael Lang und Matthias Müller. „DC and RF Plasma Processing for Fabrication of Solid Oxide Fuel Cells“. In ITSC2004, herausgegeben von Basil R. Marple und Christian Moreau. ASM International, 2004. http://dx.doi.org/10.31399/asm.cp.itsc2004p0047.

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Abstract Plasma deposition technologies are applied as an alternative approach to conventionally used sintering techniques for the fabrication of the entire cell assembly of solid oxide fuel cells (SOFC). Based on advanced processes with both DC and RF plasma DLR Stuttgart has developed a concept of a planar SOFC with consecutive deposition of all layers of a thin-film cell onto a metallic substrate support. The current state of the development of this “spray concept” which focuses on the application of SOFC as auxiliary power units (APU) for electric power supply in vehicles and aircrafts is summarized in this paper.

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Berichte der Organisationen zum Thema "Solid Oxide Cells (SOC)"

Singh, Raj. Innovative Seals for Solid Oxide Fuel Cells (SOFC). Office of Scientific and Technical Information (OSTI), Juni 2008. http://dx.doi.org/10.2172/953469.

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Singh, Raj. Innovative Self-Healing Seals for Solid Oxide Fuel Cells (SOFC). Office of Scientific and Technical Information (OSTI), Juni 2012. http://dx.doi.org/10.2172/1054518.

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Dr. Christopher E. Milliken und Dr. Robert C. Ruhl. LOW COST MULTI-LAYER FABRICATION METHOD FOR SOLID OXIDE FUEL CELLS (SOFC). Office of Scientific and Technical Information (OSTI), Mai 2001. http://dx.doi.org/10.2172/810440.

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Prasad Enjeti und J.W. Howze. Development of a New Class of Low Cost, High Frequency Link Direct DC to AC Converters for Solid Oxide Fuel Cells (SOFC). Office of Scientific and Technical Information (OSTI), Dezember 2003. http://dx.doi.org/10.2172/861667.

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Skone, Timothy J. Solid oxide fuel cell (SOFC) Manufacture. Office of Scientific and Technical Information (OSTI), Juni 2015. http://dx.doi.org/10.2172/1509449.

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Jamieson, Matthew. Solid Oxide Fuel Cell (SOEC) operations. Office of Scientific and Technical Information (OSTI), Januar 2023. http://dx.doi.org/10.2172/1922944.

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Ghezel-Ayagh, Hossein. TRANSFORMATIONAL SOLID OXIDE FUEL CELL (SOFC) TECHNOLOGY. Office of Scientific and Technical Information (OSTI), Januar 2022. http://dx.doi.org/10.2172/1854102.

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Haberman, Ben, Carlos Martinez-Baca und Greg Rush. LG Solid Oxide Fuel Cell (SOFC) Model Development. Office of Scientific and Technical Information (OSTI), Mai 2013. http://dx.doi.org/10.2172/1093540.

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Skone, Timothy J. Life Cycle Analysis: Solid Oxide Fuel Cell (SOFC) Power Plants. Office of Scientific and Technical Information (OSTI), Mai 2018. http://dx.doi.org/10.2172/1542445.

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Manohar S. Sohal, Anil V. Virkar, Sergey N. Rashkeev und Michael V. Glazoff. Modeling Degradation in Solid Oxide Electrolysis Cells. Office of Scientific and Technical Information (OSTI), September 2010. http://dx.doi.org/10.2172/993195.

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