Siemens Westinghouse Power Corporation

Siemens Energy, Inc.

Srikanth Gopalan

George R Folser

Arnold O Isenberg

Roswell J Ruka

Stephen E Veyo

Norman F Bessette

A plasma sprayed ceramic-metal fuel electrode is provided. The fuel electrode has particular application in connection with a solid oxide fuel cell used within a power generation system. The fuel cell advantageously comprises an air electrode, an electrolyte formed on at least a portion of the air electrode, a plasma sprayed ceramic-metal fuel electrode formed on at least a portion of the electrolyte, and an interconnect layer to connect adjacent cells in a generator.

Plasma sprayed ceramic-metal fuel electrode

A fuel cell generator contains a plurality of fuel cells ( ) in a generator chamber ( ) and also contains a fuel reactor chamber ( ) containing either fuel cells or electrolysis cells as the depleted fuel reactor means, which means preferably has copper fuel electrodes, where oxidant ( ) and fuel ( ) are fed to the generator chamber ( ), where both fuel and oxidant react, and where all oxidant and fuel passages are separate and do not communicate with each other, so that fuel and oxidant in whatever form do not mix and where a depleted fuel exit ( ) is provided for exiting a product gas which consists essentially of carbon dioxide and water for further treatment so that carbon dioxide can be separated and is not vented to the atmosphere.

Electrochemical fuel depletion means for fuel cell generators

A tubular fuel cell ( ) contains an air electrode ( ), an electrolyte ( ), and a fuel electrode ( ) where an interlayer material ( ) is disposed between the air electrode and the electrolyte, the interlayer ( ) containing a two-phase particle mixture, where the particles have a size range from 0.5-5 micrometers, but where at least 50 wt % of the particles are less than 3 micrometers and where the interlayer ( ) is from 15-40 micrometers thick and from 5-50% porous.

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Monroeville, PA, United States of America

Srikanth Gopalan