Abstract: Electrochemical cell systems (51) and electrochemical cell processes are described as applicable to power generation or electrolysis modes with systems that have a containment vessel interior space multiple electrochemical cell stack, stack inlet plenum (43) that can accommodate thermal expansion and contraction in an economical way and that can provide a substantially equivalent environment for each stack inlet as well as can include, if desired, either or all of a vessel external compression stack mount possibly configured as a cathode outlet manifold (111) configured as a stack mount, a fully accommodative thermal expansion-contraction electrochemical cell stack mount possibly configured with external springs (91), and even the possibility of an axial flow adjuster such as a gradation plate (99) for better operation.

Abstract: The invention relates to perovskite oxide electrode materials in which one or more of the elements Mg, Ni, Cu, and Zn are present as minority components that enhance electrochemical performance, as well as electrode products with these compositions and methods of making the electrode materials. Such electrodes are useful in electrochemical system applications such as solid oxide fuel cells, ceramic oxygen generation systems, gas sensors, ceramic membrane reactors, and ceramic electrochemical gas separation systems.

Abstract: A fuel cell assembly includes a plurality of opposing fuel cell stacks. Each of the fuel stacks has a plurality of fuel cells in which each fuel cell has an anode, a cathode, and an electrolyte. The fuel cell assembly further includes a spacing member disposed between the fuel cell stacks thereby defining a fluidic cavity.

Abstract: Aqueous coating slurries useful in depositing a dense coating of a ceramic electrolyte material (e.g., yttrium-stabilized zirconia) onto a porous substrate of a ceramic electrode material (e.g., lanthanum strontium manganite or nickel/zirconia) and processes for preparing an aqueous suspension of a ceramic electrolyte material and an aqueous spray coating slurry including a ceramic electrolyte material. The invention also includes processes for depositing an aqueous spray coating slurry including a ceramic electrolyte material onto pre-sintered, partially sintered, and unsintered ceramic substrates and products made by this process.