Electrically conductive fuel cell contact materials

Details Electrically conductive fuel cell contact materials Electrically conductive fuel cell contact materials

2007-03-13

2007-03-13

Dinkins, Anthony (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S321200, C361S303000, C029S025410

Reexamination Certificate

active

10904563

ABSTRACT:
A multilayer contact approach for use in a planar solid oxide fuel cell stack includes at least 3 layers of an electrically conductive perovskite which has a coefficient of thermal expansion closely matching the fuel cell material. The perovskite material may comprise La1-xExCo0.6Ni0.4O3where E is a alkaline earth metal and x is greater than or equal to zero. The middle layer is a stress relief layer which may fracture during thermal cycling to relieve stress, but remains conductive and prevents mechanical damage of more critical interfaces.

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