Fuelcell Energy, Inc.

The United States of America As Represented by the Department of Energy

Jian Li

Chao-yi Yuh

Mohammad Farooque

Hansraj C Maru

Thomas M Lucas

Michael Primerano

Chao M Huang

A dielectric assembly for electrically insulating a manifold or other component from a liquid electrolyte fuel cell stack wherein the dielectric assembly includes a substantially impermeable dielectric member over which electrolyte is able to flow and a barrier adjacent the dielectric member and having a porosity of less than 50% and greater than 10% so that the barrier is able to measurably absorb and chemically react with the liquid electrolyte flowing on the dielectric member to form solid products which are stable in the liquid electrolyte. In this way, the barrier inhibits flow or creepage of electrolyte from the dielectric member to the manifold or component to be electrically insulated from the fuel cell stack by the dielectric assembly.

Electrolyte creepage barrier for liquid electrolyte fuel cells

An anode support formed of a three-dimensional interconnected porous nickel plaque fabricated by sintering a bed of pure metallic nickel powder particles.

Anode support for carbonate fuel cells

A carbonate fuel cell comprising cathode side hardware having a thin coating of a conductive ceramic for providing corrosion resistance and a method of making the same.

Sol-gel coated cathode side hardware for carbonate fuel cells

A dielectric member having a reduced electrolyte creepage characteristic is realized by forming the dielectric member to have a surface roughness of Ra 10 or less.

Ultra-smooth dielectric members for liquid electrolyte fuel cells

A metal-ceramic joint assembly in which a brazing alloy is situated between metallic and ceramic members. The metallic member is either an aluminum-containing stainless steel, a high chromium-content ferritic stainless steel or an iron nickel alloy with a corrosion protection coating. The brazing alloy, in turn, is either an Au-based or Ni-based alloy with a brazing temperature in the range of 9500 to 1200&deg; C.

Metal-ceramic joint assembly

A bipolar separator formed from a plate member and first, second, third and fourth pocket members separately formed from the plate member. The plate member is fabricated from a stainless steel material and each of the pocket members is fabricated from a stainless steel with an aluminum coating. Welds including aluminum affix the pocket members to the plate member.

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New Milford, CT, United States of America

Jian Li