Battelle Memorial Institute

Delphi Technologies, Inc.

Emerald Energy Nw, LLC

Kerry D Meinhardt

Vincent L Sprenkle

Jin Yong Kim

Lawrence Andrew Chick

John A Barclay

Jeffry W Stevenson

Jamie D Holladay

Edwin C Thomsen

Evgueni Polikarpov

Karl Jacob Haltiner, Jr

Subhasish Mukerjee

Nathan L Canfield

Yeong-Shyung Matt Chou

Timothy Robert Armstrong

Jun Cui

Larry R Pederson

Guosheng Li

K Scott Weil

Xiaochuan Lu

John David Vienna

Gregory W Coffey

Steven P Simner

John Patrick Lemmon

Haskell Simpkins

Paul E George, Ii

Greg A Whyatt

Eric Sidney Mast

Michael Roy Powell

Kenneth Scott Weil

Joseph M Keller

Robert J Svoboda

Dean Paxton

Kurtis P Recknagle

Brent W Kirby

John E Deibler

Dean Michael Paxton

Jr Karl J Haltiner

Kenneth S Weil

Subhasish 157 Mukerjee

Steven P Simmer

A process for liquefying a process gas that includes introducing a heat transfer fluid into an active magnetic regenerative refrigerator apparatus that comprises a single stage comprising dual multilayer regenerators located axially opposite to each other.

Advanced multi-layer active magnetic regenerator systems and processes for magnetocaloric liquefaction

A dense &#x3b2;&#x2033;-alumina/zirconia composite solid electrolyte and process for fabrication are disclosed. The process allows fabrication at temperatures at or below 1600&#xb0; C. The solid electrolytes include a dense composite matrix of &#x3b2;&#x2033;-alumina and zirconia, and one or more transition metal oxides that aid the conversion and densification of precursor salts during sintering. The composite solid electrolytes find application in sodium energy storage devices and power-grid systems and devices for energy applications.

Process for fabrication of enhanced &#x3b2;&#x2033;-alumina solid electrolytes for energy storage devices and energy applications

A process for liquefying hydrogen gas into liquid hydrogen that includes:

Active magnetic regenerative liquefier using process gas pre-cooling from bypass flow of heat transfer fluid

An energy storage device comprising a cathode comprising:

Na&#x2014;FeClZEBRA type battery

A process for liquefying a process gas that includes:

The approaches and apparatuses for fabricating cathodes can be adapted to improve control over cathode composition and to better accommodate batteries of any shape and their assembly. For example, a first solid having an alkali metal halide, a second solid having a transition metal, and a third solid having an alkali metal aluminum halide are combined into a mixture. The mixture can be heated in a vacuum to a temperature that is greater than or equal to the melting point of the third solid. When the third solid is substantially molten liquid, the mixture is compressed into a desired cathode shape and then cooled to solidify the mixture in the desired cathode shape.

Apparatuses for making cathodes for high-temperature, rechargeable batteries

A method of manufacturing a solid oxide fuel cell stack having an electrically conductive interconnect, including the steps of: (a) providing a first fuel cell and a second fuel cell, (b) providing a substrate having an iron-chromium alloy, (c) depositing a layer of metallic cobalt over a portion of substrate surface, (d) subjecting the layer of metallic cobalt to reducing conditions, (e) then exposing the remaining portion of the layer of metallic cobalt to oxidizing conditions for a predetermined time and temperature, such that the surface portion of the layer of metallic cobalt is oxidized to cobalt oxide, thereby forming the electrically conductive interconnect having a layer of metallic cobalt sandwiched between a surface layer of cobalt oxide and the layer of cobalt-iron-chromium alloy, and (f) sandwiching the substrate between the first and second fuel cells.

Method of manufacturing a fuel cell stack having an electrically conductive interconnect

A method of making a molten sodium battery is disclosed. A first metallic interconnect frame having a first interconnect vent hole is provided. A second metallic interconnect frame having a second interconnect vent hole is also provided. An electrolyte plate having a cathode vent hole and an anode vent hole is interposed between the metallic interconnect frames. The metallic interconnect frames and the electrolyte plate are sealed thereby forming gaseous communication between an anode chamber through the anode vent hole and gaseous communication between a cathode chamber through the cathode vent hole.

Planar high density sodium battery

A cassette less SOFC assembly and a method for creating such an assembly. The SOFC stack is characterized by an electrically isolated stack current path which allows welded interconnection between frame portions of the stack. In one embodiment electrically isolating a current path comprises the step of sealing a interconnect plate to a interconnect plate frame with an insulating seal. This enables the current path portion to be isolated from the structural frame an enables the cell frame to be welded together.

Cassette less SOFC stack and method of assembly

The approaches for fabricating cathodes can be adapted to improve control over cathode composition and to better accommodate batteries of any shape and their assembly. For example, a first solid having an alkali metal halide, a second solid having a transition metal, and a third solid having an alkali metal aluminum halide are combined into a mixture. The mixture can be heated in a vacuum to a temperature that is greater than or equal to the melting point of the third solid. When the third solid is substantially molten liquid, the mixture is compressed into a desired cathode shape and then cooled to solidify the mixture in the desired cathode shape.

Methods and apparatuses for making cathodes for high-temperature, rechargeable batteries

The present invention is a Solid Oxide Fuel Cell Reforming Power System that utilizes adiabatic reforming of reformate within this system. By utilizing adiabatic reforming of reformate within the system the system operates at a significantly higher efficiency than other Solid Oxide Reforming Power Systems that exist in the prior art. This is because energy is not lost while materials are cooled and reheated, instead the device operates at a higher temperature. This allows efficiencies higher than 65%.

Solid oxide fuel cell steam reforming power system

Solid-oxide fuel cell (SOFC) stack assembly designs are consistently investigated to develop an assembly that provides optimal performance, and durability, within desired cost parameters. A new design includes a repeat unit having a SOFC cassette and being characterized by a three-component construct. The three components include an oxidation-resistant, metal window frame hermetically joined to an electrolyte layer of a multi-layer, anode-supported ceramic cell and a pre-cassette including a separator plate having a plurality of vias that provide electrical contact between an anode-side collector within the pre-cassette and a cathode-side current collector of an adjacent cell. The third component is a cathode-side seal, which includes a standoff that supports a cathode channel spacing between each of the cassettes in a stack. Cassettes are formed by joining the pre-cassette and the window frame.

Cassettes for solid-oxide fuel cell stacks and methods of making the same

Lanthanum strontium cobalt iron oxides (La(1-x)SrxCoyFe1-yO3-f; (LSCF) have excellent power density (&#x3e;500 mW/cm2 at 750&#xb0; C.). When covered with a metallization layer, LSCF cathodes have demonstrated increased durability and stability. Other modifications, such as the thickening of the cathode, the preparation of the device by utilizing a firing temperature in a designated range, and the use of a pore former paste having designated characteristics and combinations of these features provide a device with enhanced capabilities.

Optimized cell configurations for stable LSCF-based solid oxide fuel cells

A glass foaming material and method are disclosed for filling void spaces in electrochemical devices. The glass material includes a reagent that foams at a temperature above the softening point of the glass. Expansion of the glass fills void spaces including by-pass and tolerance channels of electrochemical devices. In addition, cassette to cassette seals can also be formed while channels and other void spaces are filled, reducing the number of processing steps needed.

Glass composition and process for sealing void spaces in electrochemical devices

Growing community of inventors

Kennewick, WA, United States of America

Kerry D Meinhardt