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Surface Modifications for Electrode Compositions and Their Methods of Making

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Compositions and methods of making are provided for surface modified electrodes and batteries comprising the same. The compositions may comprise a base composition having an active material capable of intercalating the metal ions during a discharge cycle and deintercalating the metal ions during a charge cycle, wherein the active material is selected from the group consisting of LiCoO.sub.2, LiMn.sub.2O.sub.4, Li.sub.2MnO.sub.3, LiNiO.sub.2, LiMn.sub.1.5Ni.sub.0.5O.sub.4, LiFePO.sub.4, Li.sub.2FePO.sub.4F, Li.sub.3CoNiMnO.sub.6, Li(Li.sub.aNi.sub.xMn.sub.yCo.sub.z)O.sub.2, Li.sub.aMn.sub.1.5-bNi.sub.0.5-cM.sub.dO.sub.4-x, and mixtures thereof. The compositions may also comprise an annealed composition covering a portion of the base composition, formed by a reaction of the base composition in a reducing atmosphere. The methods of making comprise providing the base composition and annealing the base electrode in a reducing atmosphere.
Parans Paranthaman, Mariappan (Knoxville, TN), Bridges, Craig A. (Oak Ridge, TN), Yoon, Sukeun (Daejeon, KR)
15/ 002,528
January 21, 2016
STATEMENT OF GOVERNMENT INTEREST [0001] The invention was made with government support under contract number DE-AC05-000R22725 by the Department of Energy. The Government has certain rights in the invention.