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Aluminum Substituted Mixed Transition Metal Oxide Cathode Materials for Lithium Ion Batteries

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Lawrence Berkeley National Laboratory - Visit the Technology Transfer and Intellectual Property Management Department Website
A mixed transition metal oxide is provided described wherein Aluminum is partially substituted for Cobalt in a Li[Ni.sub.xCo.sub.yMn.sub.z]O.sub.2 composition wherein the resulting aluminum substituted product Li[Ni.sub.0.4Co.sub.0.2-yAl.sub.yMn.sub.0.4]O.sub.2 is less costly than the parent product, is safer to use, and provides enhanced electrochemical performance as a cathode material for use in Lithium-ion based batteries.
Wilcox, James D. (Pleasanton, CA), Doeff, Marca M. (Hayward, CA)
The Regents of the University of California (Oakland CA)
13/ 119,703
September 23, 2009
STATEMENT OF GOVERNMENTAL SUPPORT [0002] The invention described and claimed herein was made in part utilizing funds supplied by the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. The government has certain rights in this invention.