SOFC/SOEC interconnector with Co-Ni anti-oxidation coating for high-temperature durability
Custom SOFC/SOEC interconnectors made from Crofer 22 APU/H, ZMG232L/G10, or other ferritic stainless alloys with proprietary Co-Ni electroplating or MCF thermal-spray coating to suppress oxidation and Cr-poisoning at 600–900°C operating temperatures.
Problem solved
Enables long-term (>40,000h) SOFC/SOEC stack operation by preventing Cr-poisoning of cathode and limiting contact resistance increase from oxidation on metal interconnectors at high operating temperature.
Application contexts
- SOFC stationary power generation
- SOEC green hydrogen production
- SOEC e-methane cogeneration
- rSOC reversible systems
Technical principle
Co-Ni electroplating or MCF (Mn,Co,Fe)₃O₄ thermal-spray coating forms a protective conductive barrier on ferritic stainless steel interconnectors, maintaining low contact resistance while suppressing chromium evaporation that degrades cell cathodes. Crofer 22 APU/H and ZMG232L/G10 alloys provide matched coefficient of thermal expansion (CTE) to SOFC ceramic cells.
Typical use cases
- Long-life SOFC stationary generator interconnectors
- High-durability SOEC electrolysis stack plates
- Custom Crofer 22 APU interconnectors for stack developers
Partnership route
How global engineering teams typically engage this asset.
Helpful to include: target operating temperature and atmosphere · stack size and cell active area · required coating type (Co-Ni / MCF / none) · annual volume requirement · alloy material preference
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- Source: マグネクス株式会社 インターコネクタ＆コーティング
- Original language: JA
- Summary AI-assisted; translation status: Unreviewed