YSZ (55 wt%) Electrolyte Slurry for SOFC/SOEC, 100 g/bottle, CSOFECESYSZ
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In the manufacturing of Solid Oxide Fuel Cells (SOFC) and Electrolysis Cells (SOEC), a YSZ slurry is the liquid suspension of YSZ powder, solvents, and chemical additives used to create the ceramic layers of the cell. Regarding the 8YSZ for the electrolyte, the quality of the slurry determines the final density, thickness, and mechanical integrity of the cell.
A high-performance slurry is a complex chemical system. Each additive has a specific role in ensuring the YSZ particles remain suspended and flow correctly during deposition. For example:
- Viscosity: Moderate to high (1000-5000 mPa·s.
- Goal: A "honey-like" consistency that can be spread into a perfectly flat, thin green tape (10-200 um.
- Key Factor: High binder/plasticizer content is needed so the tape can be peeled off the carrier film without tearing.
(2) Screen Printing (for Functional Layers)
- Viscosity: Very high ("Paste" or "Ink" consistency).
- Goal: Thixotropic behavior—the slurry should flow easily through the mesh under the squeegee but stay exactly where it is printed without "bleeding."
- Key Factor: Solvent evaporation must be slow (e.g., using Terpineol) to prevent the screen from clogging during a long production run.
(3) Dip Coating or Spraying (for Tubular Cells)
- Viscosity: Low (10-100 mPa·s}.
- Goal: A watery suspension that can coat a support tube evenly.
- Key Factor: Requires very fine YSZ particles (<0.3 um) to keep the powder from settling at the bottom of the container.
| Part Number |
CSOFECESYSZ (C-SOFEC-ES-YSZ) |
| Active Material |
8YSZ (BaZr0.8Y0.2O3-δ) |
| Solid-State Content |
55 wt% |
| Package Grade |
100 g/bottle (other grades, such as 500 g, and 1000 g or larger can be supplied upon request) |
References:
- J. Schefold, et al., Electronic Conduction of Yttria-Stabilized Zirconia Electrolyte in Solid Oxide Cells Operated in High Temperature Water Electrolysis, J. Electrochem. Soc., 2009, 156, B897
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S. K. Kim, et al., Understanding the phase stability of yttria stabilized zirconia electrolyte under solid oxide electrolysis cell operation conditions, J. Mater. Chem. A, 2024,12, 8319-8330.