Fuel-cell stack terminal with multi-material thermal press-bonded sealing
Stack end terminals that combine electrical current takeoff with multi-fluid sealing by thermally press-bonding dissimilar-thickness materials, mass-produced for Toyota MIRAI fuel-cell stacks.
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Problem solved
Fuel-cell stacks need end terminals that both collect current and seal hydrogen, oxidant and coolant paths; joining dissimilar metals/thicknesses without warpage-induced leak paths is a production bottleneck.
Application contexts
- Light-duty FCV PEFC stacks
- Potential transfer to commercial FC vehicle stacks needing sealed current takeoff
- Stack end-plate electrical/seal hybrid components
Technical principle
Gasket-derived die and thermal press-bonding process joins materials of different thickness and composition while compensating warpage to keep seal thickness uniform; terminals sit on both sides of the FC assembly and extract electricity while sealing H2/O2/coolant.
Typical use cases
- PEFC stack terminal for passenger FCV
- Sealed electrical takeoff parts for multi-fluid stack ends
Partnership route
How global engineering teams typically engage this asset.
Helpful to include: stack architecture and terminal current rating · seal fluids and pressure/temperature envelope · material stack-up constraints · annual volume · whether PEFC-only or broader FC platforms
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Source & provenance
Translation review status: unreviewed. Publication does not establish technical verification or supplier endorsement.
Original language: JA.
Record updated: .
- 燃料電池部品
https://www.npgkt.co.jp/products/fc_stack/
Primary-source candidate; evidence review: pending.
Source accessed / recorded (collector timestamp): .
Source publication date: Not recorded.
- 会社概要
https://www.npgkt.co.jp/company/about/
Supporting / discovery source; evidence review: pending.
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Source publication date: Not recorded.
Collector timestamps record when a source was stored, not an independent verification date. Source links provide context; they do not validate every specification, readiness label, certification, or proposed partnership route.