Solid Oxide Cells Research Articles

Analysis of residual stress for thin-layered electrolyte co-sintered with porous electrodes applied in solid oxide cells

Analysis of residual stress for thin-layered electrolyte co-sintered with porous electrodes applied in solid oxide cells

A mini-review on three-electrode configuration for Solid Oxide Cells

A mini-review on three-electrode configuration for Solid Oxide Cells

Thermal constraint control of reversible solid oxide cell for optimal system efficiency

Thermal constraint control of reversible solid oxide cell for optimal system efficiency

Multilayer Co-casting method for enhanced performance anode-supported reversible solid oxide cells: Fabrication and effect of anode functional layer thickness on electrochemical performance

Multilayer Co-casting method for enhanced performance anode-supported reversible solid oxide cells: Fabrication and effect of anode functional layer thickness on electrochemical performance

Advancements in air electrode fabrication and structure-performance relationships for solid oxide cells using pulsed laser deposition

Advancements in air electrode fabrication and structure-performance relationships for solid oxide cells using pulsed laser deposition

Modeling of solid oxide cells with mixed ionic electronic conductor electrolytes using a unified electrochemical potential model

Modeling of solid oxide cells with mixed ionic electronic conductor electrolytes using a unified electrochemical potential model

Utilisation of steelmaking waste gases in solid oxide cell technology: Opportunities, challenges and future directions

Utilisation of steelmaking waste gases in solid oxide cell technology: Opportunities, challenges and future directions

A cobalt-free high-entropy perovskite oxide material as the electrocatalyst with enhanced activity for reversible solid oxide cells

A cobalt-free high-entropy perovskite oxide material as the electrocatalyst with enhanced activity for reversible solid oxide cells

Voltage cycling as a dynamic operation mode for high temperature electrolysis solid oxide cells

Voltage cycling as a dynamic operation mode for high temperature electrolysis solid oxide cells

Large Area High-Performance Thin Film Solid Oxide Fuel Cell with Nanoscale Anode Functional Layer by Scalable Reactive Sputtering.

For high-performance thin-film solid oxide cells (TF-SOCs), a nanostructured anode functional layer (n-AFL) that can prolong the triple-phase boundary (TPB) is crucial, particularly for low-temperature operation. However, the implementation of n-AFL (usually >1µm in thickness) has critical issues in scale-up and productivity. Here, the study successfully demonstrates a large-area, high-performance TF-SOFC with an n-AFL fabricated via mass-production-compatible reactive magnetron sputtering. The cell with optimized n-AFL by adjusting crucial reactive-sputtering process parameters, i.e., oxygen partial pressure and sputtering power, shows superior performance compared to that of the cell without n-AFL: the reduction both in ohmic and anodic polarization resistances by 63% and 34%, respectively, and the improvement in maximum power density by 89% (0.705Wcm-2 vs 1.333Wcm-2) at 650°C. When employed in large-scale cell (4 × 4 cm2), the TF-SOFC with n-AFL showed 19.4W at 650°C.

The Regulation Mechanism of Oxygen Vacancies in Ruddlesden-Popper Perovskite Ln2NiO4 (Ln = La, Pr, Nd) Air Electrode for Reversible Protonic Solid Oxide Cells.

Reversible protonic solid oxide cells (R-PSOCs) are promising green energy storage devices for efficient hydrogen/electricity conversion. Due to the complex environment of the air electrode, the microscopic influence mechanism of oxygen vacancies in perovskites on oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) is unclear. In this study, the layered Ruddlesden-Popper perovskite Ln2NiO4 (Ln = La, Pr, Nd) air electrodes are constructed to investigate the effect of oxygen vacancies on the water/oxygen coupling in dual mode. The Pr2NiO4+δ full cell exhibits the highest peak power density of 0.692 W cm-2 in fuel cell mode and a maximum current density of -1.2 A cm-2 in electrolysis cell mode at 700°C. The changes in electrochemical impedance spectroscopy show that Pr2NiO4+δ can absorb a small amount of interfacial water in SOFC mode to promote triple-conductivity. Meanwhile, it can have good electrolytic performance in an atmosphere of 10% H2O in the SOEC mode. The enriched oxygen vacancies of Pr₂NiO4+δ can provide a broad platform for both the ORR and OER, while the appropriate hydrophilicity can achieve a better balance state by the competitive adsorption of water/oxygen. These comprehensive characteristics make Pr2NiO4+δ suitable to be a potential Ruddlesden-Popper perovskite air electrode material for RSOCs.

Blocking Sr-Segregation in Perovskite Cathodes for Solid Oxide Cells by Mn Codoping

Blocking Sr-Segregation in Perovskite Cathodes for Solid Oxide Cells by Mn Codoping

Numerical modeling of reversible solid oxide cells and optimization of the interconnector structure

Numerical modeling of reversible solid oxide cells and optimization of the interconnector structure

Tailoring strength and ionic conductivity in zirconia‐based solid oxide electrolytes using a multimaterial approach

AbstractA multimaterial approach is explored for tailoring the mechanical and functional properties of zirconia‐based ceramic electrolytes to be employed in electrochemical solid oxide cells (SOCs). The combination of alumina‐toughened zirconia (ATZ) surface layers with an embedded 8 mol% yttria‐stabilized zirconia (8YSZ) core layer introduces compressive residual stress in the electrolyte surface upon cooling from sintering. Biaxial bending is employed to assess the strength distribution in the multimaterial architectures compared to the monolithic counterparts. Electrochemical impedance spectroscopy is used to measure the ionic conductivity of the samples in the temperature range between 600°C and 1000°C. The effect of alumina addition is investigated in samples containing ATZ surface layers with 10 vol% or 20 vol% alumina. Experimental results show that the strength of multimaterial electrolytes can be increased by up to ∼30% compared to the monolithic 8YSZ electrolyte, while holding similar overall ionic conductivity compared to the 8YSZ base material. The approach presented in this work offers new paths to enhance the structural properties of functional ceramics in SOCs, which may also be applied to other systems such as ceramic membranes or ceramic sensors.

A Durable and Highly Active Oxygen Electrode for Solid Oxide Cells: New Insight into Segregation Suppression of Layered Perovskite

AbstractOne challenge to realize the commercialization of solid oxide cell technology is the instability and poor catalytic activity of the oxygen electrode during stack operation caused by Cr‐containing alloy interconnect. Particularly well‐known Sr/Ba‐containing perovskite oxides can easily segregate Sr/Ba to the surface, reacting with vaporized Cr and causing Cr poisoning. To address this challenge, this work designs an entropy‐driven layered structural strategy to suppress the surface segregation of cations and realize substantial enhancement of catalysis activity and Cr tolerance. The investigations suggest that the planar strain generated by entropy increase in the rare earth layer plays a pivotal role in suppressing alkaline earth segregation. Consequently, the half‐cells with (La0.25Pr0.25Nd0.25Sm0.25)Ba0.5Sr0.5Co1.5Fe0.5O5+δ (LPNSBSCF) oxygen electrode exhibit significantly improved stability in various operation conditions with Cr containment. Furthermore, LPNSBSCF shows the high power density of 2.12 W cm−2 at 800 °C and 1.41 W cm−2 at 650 °C in the single cells of oxygen ion and proton type, respectively. This paper provides new insights into segregation suppression in layered perovskite and offers theoretical guidance for the rational design of oxygen electrodes to achieve high Cr‐tolerance and catalytic activity.

Interface design for enhancing the performance of solid oxide cell contact layers between interconnects and solid oxide cells

Interface design for enhancing the performance of solid oxide cell contact layers between interconnects and solid oxide cells

High temperature performance of Mn Co oxide coatings deposited by HiPIMS for interconnect application in Solid Oxide Cell

High temperature performance of Mn Co oxide coatings deposited by HiPIMS for interconnect application in Solid Oxide Cell

Significantly improving the performance of SrCo0·8Nb0·1Ta0·1O3-δ perovskite-based oxygen electrode on YSZ/Ni-supported YSZ|GDC solid oxide cells

Significantly improving the performance of SrCo0·8Nb0·1Ta0·1O3-δ perovskite-based oxygen electrode on YSZ/Ni-supported YSZ|GDC solid oxide cells

Performance modelling of intermediate temperature solid oxide cells applied as electrochemical air separation unit

Performance modelling of intermediate temperature solid oxide cells applied as electrochemical air separation unit

Automated phase segmentation with quantifiable sensitivities of three-phase microstructures of solid oxide cell electrodes

Automated phase segmentation with quantifiable sensitivities of three-phase microstructures of solid oxide cell electrodes