Saint-gobain Ceramics & Plastics, Inc.

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

John D Pietras

Brian P Feldman

Yeshwanth Narendar

Mihails Kusnezoff

Yuto Takagi

Aravind Mohanram

F Michael Mahoney

Stefan Megel

Jens Schnetter

Claire Loe

Samuel Marlin

Oh-Hun Kwon

Guangyong Lin

Scott M Hamel

Caroline Levy

William J Donahue

Sophie Marie Claire Poizeau

Wesley R Robbins

Juliette Lea Marylou Maria

Qiang Zhao

Zachary R Patterson

Robert J Sliwoski

An apparatus can include a housing, a plurality of electrochemical devices disposed within the housing, and a heat exchanger disposed within the housing. The heat exchanger can be faced with an oxidant-containing gas outlet surface of at least one of the plurality of electrochemical devices. The electrochemical devices can include a stack of solid oxide fuel cells, a battery, or a solid oxide electrolyzer cell.

Apparatus including electrochemical devices and heat exchanger

An electrochemical device can include a cathode layer including an ionic conductor material and an electronic conductor material. The cathode layer can include a ratio of (Vi/Ve) of a volume of the ionic conductor material (Vi) to a volume of the electronic conductor material (Ve) of at least 1.3. In an embodiment, the cathode layer can include a median surface diffusion length (Ls) greater than 0.33 microns. In an embodiment, the cathode layer can include a cathode functional layer.

Cathode layer including ionic conductor material and electronic conductor material

Embodiments of the present disclosure relate to a hot press and methods of using the hot press. In an embodiment, the hot press can include a pressing element including a flared body. In another embodiment, the hot press can include a compression surface. The compression surface can include a first layer including a monocrystalline material and a second layer including a polycrystalline material, wherein the monocrystalline material and the polycrystalline material include a same primary compound. In a further embodiment, a sample including more than one layer of ceramic oxide material can be hot pressed without a die.

Hot press and method of using

A bonding layer, disposed between an interconnect layer and an electrode layer of a solid oxide fuel cell article, may be formed from a yttria stabilized zirconia (YSZ) powder having a monomodal particle size distribution (PSD) with a dthat is greater than about 1 &#x3bc;m and a dthat is greater than about 2 &#x3bc;m.

Solid oxide fuel cell interconnect cells

The present disclosure is directed to an integrated SOFC stack including, a first cell having a cathode layer, an electrolyte layer overlying the cathode layer, and an anode layer overlying the electrolyte layer. The SOFC stack also includes a second cell having a cathode layer, an electrolyte layer overlying the cathode layer, and an anode overlying the electrolyte layer. The SOFC stack further includes a ceramic interconnect layer between the first cell and the second cell, the ceramic interconnect layer having a first high temperature bonding region along the interfacial region between the first cell and the ceramic interconnect layer. The ceramic interconnect layer also includes a second high temperature bonding region along the interfacial region between the second cell and the ceramic interconnect layer.

SOFC stack having a high temperature bonded ceramic interconnect and method for making same

Robust ceramic igniters are provided that include an improved sealing system which can significantly enhance operational life of the igniter. Preferred igniters comprise a conductive cold zone and hot zone with higher resisitivity. A hermetic sealant material covers one or more electrical connections on the of each cold zone, thus shielding the electrical connections from environmental exposure, and thereby avoiding igniter failure resulting from electrical shorts and/or undesired oxidation.

Ceramic igniters with sealed electrical contact portion

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Sutton, MA, United States of America

John D Pietras