General Electric Company

Hybrid Power Generation Systems, LLC

Jie Guan

Nguyen Q Minh

Rajiv Doshi

Gregory Robert Lear

Xiwang Qi

Dacong Weng

Estela T Ong

Matthew Joseph Walker

Kurtis C Montgomery

Gregory Lear

Andrew Philip Shapiro

Di-Jia Liu

Stanley Frank Simpson

Timothy Joseph Rehg

Brandon W Chung

Rong Fan

Farrokh Issacci

Kurt Montgomery

James Daniel Power

Atul Kumar Verma

Vishal Agarwal

A solid oxide electrochemical device having a laminar composite electrode with improved electrochemical and mechanical performance, the laminar composite electrode comprising a porous support electrode layer, a thin and patterned structure layer, and a thin and dense electrolyte layer and methods for making.

Electrode-supported ceramic fuel cell containing laminar composite electrode including porous support electrode, patterned structure layer and electrolyte

Method for making toughened electrode-supported ceramic fuel cells

A method for manufacturing a solid oxide electrochemical device comprising disposing electrolyte between a first electrode and a second electrode, applying a bonding agent between the first electrode and a first interconnect, applying a sealing agent between the first electrode and the first interconnect, disposing a second interconnect adjacent to the second electrode, heating the first interconnect, the first electrode, the electrolyte, the second electrode, the second interconnect, the bonding agent, and the sealing agent to at least one intermediate temperature for at least one intermediate length of time, and then to a curing temperature, for a curing time, effective to bond and seal the first electrode to the first interconnect, wherein the at least one intermediate temperature is less than the curing temperature.

Method for manufacturing solid oxide electrochemical devices

A catalyzed interconnect for an SOFC electrically connects an anode and an anodic current collector and comprises a metallic substrate, which provides space between the anode and anodic current collector for fuel gas flow over at least a portion of the anode, and a catalytic coating on the metallic substrate comprising a catalyst for catalyzing hydrocarbon fuel in the fuel gas to hydrogen rich reformate. An SOFC including the catalyzed anodic inter-connect, a method for operating an SOFC, and a method for making a catalyzed anodic interconnect are also disclosed.

Solid oxide fuel cell with internal reforming, catalyzed interconnect for use therewith, and methods

A method and related bonding compositions for use in assembling a solid oxide fuel cell ('SOFC') stack having thermally and chemically stable and electrically conductive bonds between alternating fuel cells and interconnect components in the stack. The improved method and materials allow for the assembly of solid oxide fuel cells having a stronger and more reliable bond with good electrical contact in situ between the SOFC interconnect layers (plates) and the electrodes. The bonding materials and method according to the invention provide good electrical performance while maintaining the mechanical and electrical integrity of SOFC stacks without requiring excessive mechanical compression of the stack as exemplified by prior art systems. The preferred bonding agents comprise a primary phase that provides the electrical conduction path during fuel cell operation, as well as the mechanical strength necessary to insure a reliable connection between the interconnect and the relevant anode or cathode surfaces of the fuel cell. Secondary phases can be added in small amounts to the primary phase to improve adhesion. An exemplary method according to the invention also contemplates various different steps for pre-treating the surfaces of the interconnect plates and electrodes to improve their surface bonding properties.

Method and materials for bonding electrodes to interconnect layers in solid oxide fuel cell stacks

The fuel cell interconnect units may include a fuel compartment, an air compartment adjacent to the fuel compartment, a plurality of fuel flow fields that are in communication with the fuel compartment and have a fuel outlet, and a plurality of air flow fields that are in communication with the air compartment and have an air outlet.

Systems for planar fuel cell interconnect units

A method of fabricating a support electrode for a solid oxide fuel cell includes (a) providing a solid support electrode having an upper surface, the solid electrode comprising an electronically non-conductive material and an electronically conductive material; (b) applying a mask over the upper surface to create a desired unmasked pattern on the top surface; (c) removing the desired amount of material(s) from the unmasked pattern to a predetermined depth of the support electrode; and (d) removing the mask.

High performance fuel cell electrode and method for manufacturing same

The present invention relates to a multi-layered and multifunctional cathode in solid oxide fuel cells having high conductivity, high catalytic activity, minimized coefficient of thermal expansion (CTE) mismatch, excellent compatibility to other portions of the fuel cell, and reduced temperature operation. The cathode comprises a conductive layer, a catalyst layer and a graded composition layer. The conductive layer has a first density, the catalyst layer has a second density that is less than the first density, and the graded composition layer is characterized by a graded electronic conductivity and a graded ionic conductivity.

High performance cathodes for solid oxide fuel cells

A solid oxide fuel cell comprises an anode, a cathode opposite to the anode, and an electrolyte between the anode and cathode. The electrolyte includes a barrier layer that prevents chemical interactions between the electrolyte and the anode, in addition to preventing elemental losses from the electrolyte. The electrolyte further includes a strengthening layer having alternating layer elements that provide fracture resistance to the electrolyte.

Integrated SOFC

Growing community of inventors

Torrance, CA, United States of America

Jie Guan