Bloom Energy Corporation

Sanchit Khurana

Tad Armstrong

Harald Herchen

Cheng-Yu Lin

Emily Wong

Emad El Batawi

Michael Gasda

A method of making an interconnect for a solid oxide fuel cell stack includes contacting an interconnect powder located in a die cavity with iron, the interconnect powder including a chromium and iron, compressing the interconnect powder to form an interconnect having ribs and fuel channels on a first side of the interconnect, such that the iron is disposed on tips of the ribs; and sintering the interconnect, such that the iron forms an contact layer on the tips of the ribs having a higher iron concentration than a remainder of the interconnect. A glass containing cathode contact layer having a glass transition temperature of 900&#xb0; C. or less may be located over the rib tips on the oxidant side of the interconnect.

Fuel cell interconnect with reduced voltage degradation and manufacturing method

An interconnect for a fuel cell stack includes an interconnect body having an air surface having air flow channels and ribs and a fuel surface having fuel flow channels and ribs, an electrically conductive contact layer located on the air surface of the interconnect, the electrically conductive contact layer containing at least one of Co and Mn, and a corrosion barrier layer containing zirconium silicate and magnesium aluminosilicate crystals located over the electrically conductive contact layer.

Solid oxide fuel cell interconnect having a magnesium containing corrosion barrier layer and method of making thereof

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Sunnyvale, CA, United States of America

Sanchit Khurana