Precision photo-etched SOFC interconnector/separator for fuel cell stacks
Thick-plate photo-chemically etched stainless steel interconnectors and separators for SOFC stacks, with arbitrary flow-channel layout and maintained flatness on sealing surfaces.
Problem solved
Enables precision etching of thick (1.0 mm+) stainless steel fuel-cell alloys to form gas distribution channels and flow fields for SOFC/SOEC stacks, maintaining surface flatness critical for stack sealing while allowing custom flow-path geometries.
Application contexts
- SOFC stationary power generator interconnectors
- SOEC electrolysis stack separators
- High-temperature electrochemical stack components
Technical principle
Photo-chemical etching (photolithography + chemical dissolution) of 1.0 mm stainless steel sheets, forming flow channels and gas distribution paths without mechanical stress or burrs. Compatible with specialty fuel-cell ferritic stainless steels (Crofer, ZMG series) for matched CTE.
Typical use cases
- Custom flow-field interconnectors for prototype SOFC stacks
- Precision separators for SOEC stack development
- Thick-plate etched manifolds for stack testing
Partnership route
How global engineering teams typically engage this asset.
Helpful to include: plate dimensions (thickness, width, length) · alloy material required · flow-channel geometry (width, depth, pattern) · flatness tolerance requirement · volume (prototype vs production)
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- Source: 燃料電池用部品（インターコネクタ/セパレーター） | 東洋精密工業株式会社
- Original language: JA
- Summary AI-assisted; translation status: Unreviewed