Description
Key Properties & Advantages
This NiO anode current collector slurry balances high solids loading with processability, ensuring optimal performance in SOFC anodes:
High Solids Content (60–75%): Enables thick or thin film deposition in a single pass, reducing coating cycles and ensuring a dense, conductive layer after sintering—critical for low-resistance current collection.
Fine Fineness (<5 μm): Ensures uniform particle dispersion, preventing agglomerates that could disrupt electron flow. The sub-5 μm particle size promotes tight packing, forming a continuous NiO network that converts to conductive metallic Ni post-reduction.
Tailored Viscosity (600–1500 cP): Optimized for controlled flow during application, ensuring smooth, defect-free coatings on anode substrates (e.g., NiO-YSZ, NiO-GDC) without sagging or pooling—compatible with standard SOFC fabrication equipment.
Post-Reduction Conductivity: Upon reduction in H₂ (500–700°C), NiO converts to metallic Ni, forming a highly conductive (10⁴–10⁵ S/cm) network that efficiently collects electrons from the anode reaction site, minimizing series resistance in SOFC stacks.
Adhesion & Durability: Formulated with a high-temperature binder system that burns out cleanly during sintering, leaving a porous yet robust Ni layer that withstands thermal cycling and chemical exposure in SOFC operating environments (800–1000°C).
Compatibility: Works seamlessly with common SOFC anode materials (NiO-YSZ, NiO-GDC) and electrolytes (YSZ, GDC), ensuring chemical stability and no interfacial reactions during high-temperature operation.
Core Applications
Solid Oxide Fuel Cells (SOFCs)
This NiO slurry is a critical component in SOFC anode design, enhancing current collection efficiency:
Anode Current Collector Layers: Applied as a conductive coating on the anode surface, it forms a low-resistance pathway between the anode active layer and the SOFC interconnect, improving electron transport and reducing stack resistance.
Thick-Film Anode Structures: Ideal for anode-supported SOFCs, where its high solids content enables the formation of thick (10–50 μm) collector layers that ensure uniform current distribution across large-area anodes.
Stack Assembly: Facilitates reliable electrical contact between individual cells in SOFC stacks, supporting scalable production of high-power systems for distributed energy, industrial heat, and hydrogen production.
High-Temperature Electrochemical Devices
Solid Oxide Electrolysis Cells (SOECs): Used as a current collector in hydrogen-producing electrolyzers, leveraging its conductivity and stability in reducing environments (H₂-rich atmospheres).
The active component is high-purity nickel oxide (NiO). The solids content is 60–75 wt.% (NiO + binder system). Fineness is <5 μm (maximum particle size, laser diffraction). Viscosity is 600–1500 cP (measured at 25°C, Brookfield method). The binder system is a high-temperature organic binder (burns out cleanly at 400–600°C). Color is dark green to gray slurry. Drying time is 30–60 minutes at 60–80°C (air drying).
Application Guidelines
Coating Methods: Compatible with screen printing (100–325 mesh), doctor blading, or spray coating. Adjust viscosity with distilled water (if needed) for specific equipment.
Drying: Air-dry at 60–80°C to remove solvents, ensuring no cracking before sintering.
Sintering: Fire at 1000–1100°C in air (2-hour ramp, 1-hour hold) to densify the layer and burn out binders.
Reduction: Convert NiO to metallic Ni in H₂ atmosphere (5–10% H₂ in N₂) at 600–800°C (2-hour hold) to activate conductivity.
Quality Assurance
Each batch of NiO anode current collector slurry undergoes rigorous testing:
Solids content measurement to confirm 60–75 wt.% range.
Fineness testing (laser diffraction) to verify <5 μm particle size.
Viscosity measurement to ensure 600–1500 cP range.
Adhesion testing (tape test) post-sintering to confirm coating integrity.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
