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METHOD OF MANUFACTURING HIGH VOLUMETRIC DENSITY ELECTRODES FROM SELF-ALIGNING FIBER POWDERS

United States Patent Application

20170170453
A1
View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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%.
Rios, Orlando (Knoxville, TN), Daniel, Claus (Knoxville, TN), Dudney, Nancy J. (Knoxville, TN), Tenhaeff, Wyatt E. (Rochester, NY)
14/ 963,661
December 9, 2015
[0001] This invention was made with government support under Contract No. DE-AC05-00OR22725 awarded by the U.S. Department of Energy. The government has certain rights in the invention.