Uchicago Argonne, LLC

James Michael Ralph

John David Carter

Deborah J Myers

Terry Alan Cruse

Joong-Myeon Bae

John Thomas Vaughey

Cècile Cr Rossignol

Methods of sealing a bipolar plate supported solid oxide fuel cell with a sealed anode compartment are provided. The solid oxide fuel cell includes a cathode, an electrolyte, and an anode, which are supported on a metallic bipolar plate assembly including gas flow fields and the gas impermeable bipolar plate. The electrolyte and anode are sealed into an anode compartment with a metal perimeter seal. An improved method of sealing is provided by extending the metal seal around the entire perimeter of the cell between an electrolyte and the bipolar plate to form the anode compartment. During a single-step high temperature sintering process the metal seal bonds to the edges of the electrolyte and anode layers, the metal foam flow field and the bipolar plate to form a gastight containment.

Method of sealing a bipolar plate supported solid oxide fuel cell with a sealed anode compartment

A bipolar plate supported solid oxide fuel cell with a sealed anode compartment is provided. The solid oxide fuel cell includes a cathode, an electrolyte, and an anode, which are supported on a metallic bipolar plate assembly including gas flow fields and the gas impermeable bipolar plate. The electrolyte and anode are sealed into an anode compartment with a metal perimeter seal. An improved method of sealing is provided by extending the metal seal around the entire perimeter of the cell between an electrolyte and the bipolar plate to form the anode compartment. During a single-step high temperature sintering process the metal seal bonds to the edges of the electrolyte and anode layers, the metal foam flow field and the bipolar plate to form a gastight containment.

Bipolar plate supported solid oxide fuel cell with a sealed anode compartment

An A and/or A' site deficient perovskite of general formula of (AA&#x2032;)FeOor of general formula AA&#x2032;FeO, wherein A is La alone or with one or more of the rare earth metals or a rare earth metal other than Ce alone or a combination of rare earth metals and X is in the range of from 0 to about 1; A&#x2032; is Sr or Ca or mixtures thereof and Y is in the range of from about 0.01 to about 0.3; &#x3b4; represents the amount of compensating oxygen loss. If either A or A&#x2032; is zero the remaining A or A&#x2032; is deficient. A fuel cell incorporating the inventive perovskite as a cathode is disclosed as well as an oxygen separation membrane. The inventive perovskite is preferably single phase.

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Fairlawn, OH, United States of America

James Michael Ralph