Ceres Intellectual Property Company Limited

Adam Bone

Robert Leah

Mike Lankin

Mahfujur Rahman

Ahmet Selcuk

Robin Pierce

Carl Matthews

Subhasish Mukerjee

Lee Rees

Eva-Maria Hammer

Richard Dawson

The invention related to metal-supported solid oxide fuel cells (SOFC), fuel cell stacks containing the same, methods of their manufacture and use thereof. The SOFC of the invention utilizes an extended electrolyte and barrier layers to prevent specific types of corrosion of the metal substrate. This new coating approach reduces the rate of degradation of the fuel cells and improves system reliability when operated over long durations.

Fuel cell

The invention relates to solid oxide fuel cell anodes, in particular anodes which containing porous particles coated with catalytic nickel. The use of porous particles as a carrier for the nickel catalyst helps to overcome some of the redox stability issues experienced by some systems and improves the internal reforming properties of the system and permits less nickel to be used in SOFC systems.

Anode for a solid oxide fuel cell and composition and method for forming same

A process for forming an electrolyte for a metal-supported solid-oxide fuel cell, the process comprising:

Electrolyte forming process for a metal-supported solid-oxide fuel cell

The invention relates to metal supported solid oxide fuel cells (SOFC), fuel cell stacks containing the same, methods of their manufacture and use thereof. The SOFC of the invention utilises an extended electrolyte and barrier layers to prevent specific types of corrosion of the metal substrate. This new coating approach reduces the rate of degradation of the fuel cells and improves system reliability when operated over long durations.

A process for forming an electrolyte for a metal-supported solid-oxide fuel cell, the process comprising: a. combining a doped-ceria powder with a sintering aid and solvent to form a slurry; b. applying the slurry to an anode layer; c. drying to form a green electrolyte; and d. firing the green electrolyte to form a sintered electrolyte; wherein the slurry in step b. comprises doped-ceria powder with a physical property selected from bimodal particle size distribution, a BET surface area in the range 15-40 m/g, a spherical morphology, or combinations thereof together with an electrolyte obtained by the process, a fuel cell and fuel cell stack, comprising the electrolyte, and the use of the fuel in the generation of electrical energy.

Electrolyte forming process

The present invention is concerned with improved fuel cell stack assembly arrangements.

Fuel cell stack arrangement

A process for forming a metal supported solid oxide fuel cell, the process comprising the steps of: a) applying a green anode layer including nickel oxide, copper oxide and a rare earth-doped ceria to a metal substrate; b) firing the green anode layer to form a composite including oxides of nickel, copper, and a rare earth-doped ceria; c) providing an electrolyte; and d) providing a cathode. Metal supported solid oxide fuel cells comprising an anode a cathode and an electrolyte, wherein the anode includes nickel, copper and a rare earth-doped ceria, fuel cell stacks and uses of these fuel cells.

Metal supported solid oxide fuel cell

A process for forming a metal supported solid oxide fuel cell is provided. The process can include the steps of: a) applying a green anode layer including nickel oxide and a rare earth-doped ceria to a metal substrate; b) prefiring the anode layer under non-reducing conditions to form a composite; c) firing the composite in a reducing atmosphere to form a sintered cermet; d) providing an electrolyte; and e) providing a cathode; wherein the reducing atmosphere comprises an oxygen source, a metal supported solid oxide fuel cell formed during this process, fuel cell stacks and the use of these fuel cells.

Process for forming a metal supported solid oxide fuel cell

The present invention is concerned with methods for the deposition of ceramic films on ceramic or metallic surfaces, particularly the deposition of sub-micron thickness ceramic films such as films of stabilised zirconia and doped ceria such as CGO (cerium gadolinium oxide). The present invention is particularly useful in the manufacture of high and intermediate temperature operating fuel cells including solid oxide fuel cells (SOFC) and also metal supported intermediate temperature SOFC operating in the 450-650&#xb0; C. range.

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Horsham, United Kingdom

Adam Bone