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Forming gas treatment of lithium ion battery anode graphite powders

United States Patent

September 16, 2014
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The invention provides a method of making a battery anode in which a quantity of graphite powder is provided. The temperature of the graphite powder is raised from a starting temperature to a first temperature between 1000 and C. during a first heating period. The graphite powder is then cooled to a final temperature during a cool down period. The graphite powder is contacted with a forming gas during at least one of the first heating period and the cool down period. The forming gas includes H.sub.2 and an inert gas.
Contescu; Cristian Ion (Knoxville, TN), Gallego; Nidia C. (Knoxville, TN), Howe; Jane Y. (Oak Ridge, TN), Meyer, III; Harry M. (Oak Ridge, TN), Payzant; Edward Andrew (Oak Ridge, TN), Wood, III; David L. (Knoxville, TN), Yoon; Sang Young (Bedford, MA), Denlinger; Matthew R. (Boston, MA)
UT-Battelle, LLC (Oak Ridge, TN)
13/ 596,291
August 28, 2012
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH 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 this invention.