Electrolyte Sheets for Solid Oxide Fuel Cells (SOFC) Electrolyte sheets for solid oxide fuel cells (SOFC)

Basic Information

Fuel cells are a type of power generator that produces electrical energy from an electrochemical reaction of hydrogen with oxygen.
These include solid oxide fuel cells (SOFC), which are highly efficient in power generation and are expected to rapidly spread in the near future as next-generation, dispersion-type clean energy systems.
Nippon Shokubai is able to mass produce these zirconia sheets using our proprietary ceramic powder processing technology and ceramic firing technology. Our extensive product lineup and custom-made products are highly rated by SOFC manufacturers worldwide.
We will continue working on spreading and further improving the performance of SOFC through these products, which are backed by low-cost mass production technologies and high-quality control technologies.

Electrolyte Sheets

Image of Electrolyte Sheets

Present Status

Commercial Production
Location: Japan

Features

High Planarity
High Ionic Conductivity
High Mechanical Strength
Customized Shape
Controlled Surface Roughness

Product List

Technical data

type3YSZ8YSZ6ScSZ10Sc1CeSZ
Dopant, Content (mol%)Yttria, 3%Yttria, 8%Scandia, 6%Scandia 10%, Ceria, 1%
Crystal StructureTetragonalCubicTetragonalCubic
Relative Density›99.6%›99.6%›99.6%›99.6%
Warp‹50μm/inch
3-point Bending Strength1.1GPa0.35GPa0.62GPa0.33GPa
Coefficient of Thermal
Expansion (30-1000℃)
10.9 ppm / K10.7 ppm / K10.7 ppm / K10.5 ppm / K
Conductivity (800℃)0.016 S/cm0.047 S/cm0.056 S/cm0.12 S/cm
Surface RoughnessOn customer’s request
SizeButton~1,000cm2
Thickness0.05 – 0.3mm

Typical Electrolyte Surface(SEM)

Typical Electrolyte Surface(SEM)

Performance

Graph of Conductivity vs. Strength,Graph of Long Term Stability of Conductivity

R&D Target

Improved Reliability of Strength (Weibull Modulus)