Ut-battelle, Inc.

Alliance for Sustainable Energy, LLC

Claus Daniel

David L Wood, Iii

Jianlin Li

Adrian Stefan Sabau

Orlando Rios

Beth Louise Armstrong

Wyatt Evan Tenhaeff

Zhijia Du

Christopher James Janke

Chaitanya Kumar Narula

Nancy Johnston Dudney

Jane Y Howe

Surendra Kumar Martha

Jian Chen

Donald L Erdman, Iii

Charles David Warren

Craig A Blue

Susan J Babinec

Bhushan L Sopori

Michael J Ulsh

James O Kiggans, Jr

Lonnie Curt Maxey

Sergiy Kalnaus

Frederick S Baker

Ronald D Ott

Alexander Johs

Przemyslaw Rupnowski

Ralph B Dinwiddie

Edward Andrew Payzant

Harry M Meyer, Iii

Michael Mihaylov Penev

Danny J King

Patrick L Hagans

Guido Bender

Nicole S Nembhard

Grady Alexander Nunnery

A method of making an electrode includes the step of mixing active material particles, radiation curable resin precursors, and electrically conductive particles to create an electrode precursor mixture. The electrode precursor mixture is electrostatically sprayed onto a current collector to provide an electrode preform. The electrode preform is heated and calendered to melt the resin precursor such that the resin precursor surrounds the active particles and electrically conductive particles. Radiation is applied to the electrode preform sufficient to cure the radiation curable resin precursors into resin.

Method of solvent-free manufacturing of composite electrodes incorporating radiation curable binders

A joined article includes a first component having a laser-treated surface portion and a second component having a laser-treated surface portion. An adhesive joins the first component to the second component at the treated surface portion. A method of making a joined article form components and a system for making joined articles are also disclosed.

Laser nanostructured surface preparation for joining materials

A coated article includes a substrate having an interference laser-treated surface portion, and a single-stage coating adhered directly to the interference laser-treated surface portion. A system and method for making a coated article are also disclosed.

Laser-interference surface preparation for enhanced coating adhesion

Thermal methods and systems are described for the batch and/or continuous monitoring of films and/or membranes and/or electrodes produced in large-scale manufacturing lines. Some of the methods described include providing an energy input into a film, measuring a thermal response of the film, and correlating these to one or more physical properties and/or characteristics of the film.

Batch and continuous methods for evaluating the physical and thermal properties of films

A composite Si-carbon fiber comprising a carbon matrix material with 1-90 wt % silicon embedded therein. The composite carbon fibers are incorporated into electrodes for batteries. The battery can be a lithium ion battery. A method of making an electrode incorporating composite Si-carbon fibers is also disclosed.

High capacity monolithic composite Si/carbon fiber electrode architectures synthesized from low cost materials and process technologies

A method of making an electrode includes the step of dispersing an active electrode material and a conductive additive in a solvent to create a mixed dispersion. The solvent has a surface tension less than 40 mN/m and an ozone forming potential of no more than 1.5 lbs. ozone/lb. solvent. A surface of a current collector is treated to raise the surface energy of the surface to at least the surface tension of the solvent or the mixed dispersion. The dispersed active electrode material and conductive additive are deposited on the current collector. The coated surface is heated to remove solvent from the coating.

Manufacturing of thick composite electrode using solvent mixtures

An electrode and a related method of manufacture are provided. The electrode includes a self-aligning active material having short fiber powders with a cylindrical morphology to increase the packing density from 0.74 to nearly 0.91. The short fiber powders self-align during a slurring coating process as a result of shear forces between a die and a foil. The resulting coating includes parallel short fibers in a closed packed arrangement, providing an increased volumetric capacity of at least approximately 17%.

Method of manufacturing high volumetric density electrodes from self-aligning fiber powders

A system and a method for characterizing a dielectric material are provided. The system and method generally include applying an excitation signal to electrodes on opposing sides of the dielectric material to evaluate a property of the dielectric material. The method can further include measuring the capacitive impedance across the dielectric material, and determining a variation in the capacitive impedance with respect to either or both of a time domain and a frequency domain. The measured property can include pore size and surface imperfections. The method can still further include modifying a processing parameter as the dielectric material is formed in response to the detected variations in the capacitive impedance, which can correspond to a non-uniformity in the dielectric material.

Characterization of dielectric materials

A method of making a battery electrode includes the steps of dispersing an active electrode material and a conductive additive in water with at least one dispersant to create a mixed dispersion; treating a surface of a current collector to raise the surface energy of the surface to at least the surface tension of the mixed dispersion; depositing the dispersed active electrode material and conductive additive on a current collector; and heating the coated surface to remove water from the coating.

Aqueous processing of composite lithium ion electrode material

A method of making an anode includes the steps of providing fibers from a carbonaceous precursor, the carbon fibers having a glass transition temperature T. In one aspect the carbonaceous precursor is lignin. The carbonaceous fibers are placed into a layered fiber mat. The fiber mat is fused by heating the fiber mat in the presence of oxygen to above the Tbut no more than 20% above the Tto fuse fibers together at fiber to fiber contact points and without melting the bulk fiber mat to create a fused fiber mat through oxidative stabilization. The fused fiber mat is carbonized by heating the fused fiber mat to at least 650&#xb0; C. under an inert atmosphere to create a carbonized fused fiber mat. A battery anode formed from carbonaceous precursor fibers is also disclosed.

Lignin-based active anode materials synthesized from low-cost renewable resources

A method of drying casted slurries that includes calculating drying conditions from an experimental model for a cast slurry and forming a cast film. An infrared heating probe is positioned on one side of the casted slurry and a thermal probe is positioned on an opposing side of the casted slurry. The infrared heating probe may control the temperature of the casted slurry during drying. The casted slurry may be observed with an optical microscope, while applying the drying conditions from the experimental model. Observing the casted slurry includes detecting the incidence of micro-structural changes in the casted slurry during drying to determine if the drying conditions from the experimental model are optimal.

Method and apparatus for in-situ drying investigation and optimization of slurry drying methodology

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Knoxville, TN, United States of America

Claus Daniel