Description

Key Properties & Advantages
This LSCF6428 cathode current collector slurry balances high-performance electrochemistry with versatile processability:

High Solids Content (60?C75%): Enables thick or thin film deposition in minimal coats, ensuring a dense, conductive layer after sintering??critical for efficient current collection and oxygen reduction reaction (ORR) activity.
Fine Fineness (<5 ??m): Ensures uniform dispersion of LSCF6428 particles, preventing agglomerates that could disrupt electron flow or block oxygen diffusion. The sub-5 ??m size promotes intimate contact with cathode substrates (e.g., LSCF active layers, GDC electrolytes). Dual-Viscosity Options: 3000?C4500 cP: Optimized for screen printing or doctor blading, ensuring controlled flow for thick films (10?C30 ??m) without sagging. 600?C1500 cP: Ideal for spray coating or dip coating, enabling smooth, thin films (5?C15 ??m) with uniform coverage. Exceptional Conductivity: LSCF6428??s intrinsic mixed ionic-electronic conductivity (MIEC) ensures efficient electron transport and oxygen ion diffusion, enhancing ORR activity at 600?C800??C. Thermal & Chemical Stability: Retains performance in oxidizing atmospheres (air) at 600?C800??C, with compatibility with common SOFC cathode materials (pure LSCF, LSCF-GDC composites) and electrolytes (GDC, YSZ). Strong Adhesion: Formulated with a high-temperature binder system that burns out cleanly during sintering, leaving a porous yet robust LSCF6428 layer that withstands thermal cycling without delamination. Core Applications SOFC Air Electrode (Cathode) Current Collection This LSCF6428 slurry is a critical component in SOFC cathode design, optimizing current collection in air electrodes: Cathode Current Collector Layers: Applied as a conductive coating on cathode active layers, it forms a low-resistance pathway between the cathode and SOFC interconnects, reducing contact resistance and improving ORR efficiency. Thick-Film Cathode Structures: Ideal for cathode-supported or planar SOFCs, where the high solids content and 3000?C4500 cP viscosity enable the formation of robust collector layers that ensure uniform current distribution across large-area air electrodes. Thin-Film Coatings: The 600?C1500 cP formulation suits spray coating of thin collector layers, enhancing surface coverage on complex cathode geometries while maintaining porosity for oxygen diffusion. Other High-Temperature Electrochemical Devices Oxygen Sensors & Membranes: Used as a conductive layer in high-temperature oxygen sensors or oxygen separation membranes, leveraging LSCF6428??s sensitivity to oxygen partial pressure and conductivity. Its active component is high-purity LSCF6428 (La?.?Sr?.?Co?.?Fe?.?O????), with a solids content of 60?C75 wt.% (including LSCF6428 and binder system). The fineness (maximum particle size, laser diffraction method) is <5 ??m, and the viscosity options are 3000?C4500 cP or 600?C1500 cP (measured at 25??C using the Brookfield method). The binder system is a high-temperature organic binder (burns out completely at 400?C600??C), the color is a black to dark gray slurry, and the sintering temperature is 1000?C1150??C in air. For research and industrial use only.