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Layer cathode methods of manufacturing and materials for Li-ion rechargeable batteries

United States Patent

January 1, 2008
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A positive electrode active material for lithium-ion rechargeable batteries of general formula Li.sub.1+xNi.sub..alpha.Mn.sub..beta.A.sub..gamma.O.sub.2 and further wherein A is Mg, Zn, Al, Co, Ga, B, Zr, or Ti and 0<x<0.2, 0.1.ltoreq..alpha..ltoreq.0.5, 0.4.ltoreq..beta..ltoreq.0.6, 0.ltoreq..gamma..ltoreq.0.1 and a method of manufacturing the same. Such an active material is manufactured by employing either a solid state reaction method or an aqueous solution method or a sol-gel method which is followed by a rapid quenching from high temperatures into liquid nitrogen or liquid helium.
Kang; Sun-Ho (Naperville, IL), Amine; Khalil (Downers Grove, IL)
U Chicago Argonne LLC (Chicago, IL)
10/ 800,292
March 12, 2004
The United States Government has rights in this invention pursuant to Contract W-31-109-ENG-38 between the U.S. Department of Energy and The University of Chicago representing Argonne National Laboratory.