MULTILAYER ELECTROCHEMICAL CELL TECHNOLOGY USING SOL-GEL PROCESSING APPLIED TO CERAMIC OXYGEN GENERATOR

摘要

An electrochemical cell that receives an inlet stream of air and produces an outlet stream of a high oxygen concentration of gas. The cell is made up of a plurality of layers and preferably a porous electrolyte comprised of yttria stabilized zirconia (YSZ) that allows only oxygen ions to pass therethrough and which is covered on its sides with electrodes comprised of lanthanum strontium manganate (LSM) which in turn are coated with a layer of platinum to aid in the even distribution of the electrical current. An electrical current is passed through the electrodes to produce a voltage difference therebetween. The layers of YSZ and LSM are formed by a sol-gel process.

主权项

1. An electrochemical oxygen cell for producing a gas having a high oxygen concentration, said electrochemical oxygen cell comprising a substrate, an anodic electrode layer of lanthanum strontium manganate covering said substrate, an electrolyte layer comprised of yttria stabilized zirconia covering said anodic electrode layer, and a cathodic electrode layer of lanthanum strontium manganate covering said electrolyte layer, said electrochemical cell having an inlet for air to enter said electrochemical oxygen cell through said cathodic electrode layer and an outlet for the high oxygen concentration gas to emerge from said electrochemical cell from said anodic electrode, said anodic electrode layer and said cathodic electrode layer adapted to be connected to a source of electrical energy to cause the flow of air through said electrochemical cell.