Series planar design for solid electrolyte oxygen pump

US5750279A · kind A · utility

Assignee

• AIR PRODUCTS AND CHEMICALS, INC. · US

Inventors

• Michael Francis Carolan · Allentown, US
• Paul N. Dyer · Allentown, US
• Eric Minford · South Windsor, US
• Steven Lee Russek · Allentown, US
• Merrill Wilson · West Jordan, US
• Dale M. Taylor · Salt Lake City, US
• Brett Tamatea Henderson · Salt Lake City, US

Key dates

• Filing date: May 9, 1994
• Grant date: May 12, 1998
• Expiry date: May 9, 2014

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/50
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

An electrochemical device is disclosed comprising a plurality of planar electrolytic cells connected in series, each cell having an oxygen ion-conducting electrolyte layer, an anode layer and a cathode layer associated with the electrolyte layer, electrically conductive interconnect layers having gas passages situated therein for transporting gaseous streams, which interconnect layers electrically connect the anode layer of each electrolytic cell to the cathode layer of an adjacent planar cell, and sealing means positioned between the interconnect layers and the electrolytic cells to provide a gas-tight seal therebetween. The configuration of the interconnect layer and the placement of the seal means provides a separation between the seal and the conductive pathway of electrons between the anode layer and cathode layer which prevents corrosion or deterioration of the seal.