Patent ID: 8580453

Claim:
An electrode-supported electrochemical device comprising: a symmetric laminar composite electrode comprising a porous support electrode, a thin and patterned structure layer having a layer thickness in the range of about 1 microns to about 40 microns and a layer width in the range of about 25 microns to about 125 microns, wherein the thin and patterned structure layer has a pattern structured to provide a mass transport and electrical flow path through the porous support electrode, and wherein the thin and patterned structure layer is operable to keep the laminar composite electrode flat during fabrication of the laminar composite electrode, during fabrication of the electrochemical device, and during operation of the electrochemical device, and a thin and dense electrolyte having a layer thickness similar to the thin and patterned structure layer, wherein the thin and dense electrolyte is adjacent to a first side of the porous support electrode and the thin and patterned structure layer is adjacent to a second side of the porous support electrode, and wherein the thin and dense electrolyte and the thin and patterned structure layer have at least one similar material property, the material property being selected from the group consisting of composition, morphology, sintering behavior, and thermal expansion coefficient; a second electrode adjacent the thin and dense electrolyte of the laminar composite electrode; a first metallic interconnect electrically connected to the laminar composite electrode; and a second metallic interconnect electrically connected to the second electrode.