Versa Power Systems Ltd

Tahir Joia

Anthony Wood

Zheng Tang

David Waldbillig

Hongpeng He

Sofiane Benhaddad

Kyle Marcotte

David Waldbilling

The present technology is directed to a solid oxide cell that may be used as a solid oxide fuel cell or a solid oxide electrolyser cell. The solid oxide cell is configured to avoid deformation caused by differential shrinking via incorporation of an oxygen barrier layer which mitigates the damage caused by the introduction of an oxidizing environment in the anode cavity during the operation of the solid oxide cell as a solid oxide fuel cell.

Redox mitigating solid oxide cell compositions

A method of manufacturing a proton-conducting fuel cell includes assembling a green anode-electrolyte half-cell by forming an anode substrate layer having an upper surface and a lower surface, forming an anode functional layer on the upper surface of the anode substrate layer, forming an electrolyte layer on an upper surface of the anode functional layer, and forming a stress balancing layer on the lower surface of the anode substrate layer. The method further includes positioning the green anode-electrolyte half-cell on kiln furniture inside a sintering kiln and sintering the green anode-electrolyte half-cell using SSRS to an anode-electrolyte half-cell.

Proton-conducting ceramic fuel cell architecture

In embodiments, a fuel cell stack is provided that includes an interconnect between a first fuel cell and a second fuel cell, and a contact layer in contact with, and disposed between, an electrode of the first fuel cell and the interconnect. The contact layer may include a chromium-getter material. This chromium-getter material may consist of lanthanum oxide, lanthanum carbonate, and/or calcium carbonate.

Cathode contact layer design for preventing chromium contamination of solid oxide fuel cells

In a solid oxide fuel cell having an anode, a cathode, and a dense electrolyte disposed between the anode and the cathode, the cathode having a ceramic-ionic conducting phase of a plurality of ionic conducting particles and a metallic phase of a plurality of metallic particles. The metallic phase includes a metal alloy having an oxide-to-metal transition temperature in the range of about 600&#xb0; C. to about 800&#xb0; C. With this cathode, solid oxide fuel cell operating temperatures as low as about 600&#xb0; C. may be possible.

High performance cathode with controlled operating temperature range

A multilayer contact approach for use in a planar solid oxide fuel cell stack includes at least 3 layers of an electrically conductive perovskite which has a coefficient of thermal expansion closely matching the fuel cell material. The perovskite material may comprise LaECoNiOwhere E is a alkaline earth metal and x is greater than or equal to zero. The middle layer is a stress relief layer which may fracture during thermal cycling to relieve stress, but remains conductive and prevents mechanical damage of more critical interfaces.

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Calgary, Canada

Tahir Joia