Skip to Content
Find More Like This
Return to Search

Nano-sized structured layered positive electrode materials to enable high energy density and high rate capability lithium batteries

United States Patent

October 2, 2012
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
Nano-sized structured dense and spherical layered positive active materials provide high energy density and high rate capability electrodes in lithium-ion batteries. Such materials are spherical second particles made from agglomerated primary particles that are Li.sub.1+.alpha.(Ni.sub.xCo.sub.yMn.sub.z).sub.1-tM.sub.tO.sub.2-dR.sub.d- , where M is selected from can be Al, Mg, Fe, Cu, Zn, Cr, Ag, Ca, Na, K, In, Ga, Ge, V, Mo, Nb, Si, Ti, Zr, or a mixture of any two or more thereof, R is selected from F, Cl, Br, I, H, S, N, or a mixture of any two or more thereof, and 0.ltoreq..alpha..ltoreq.0.50; 0<x.ltoreq.1; 0.ltoreq.y.ltoreq.1; 0<z.ltoreq.1; 0.ltoreq.t.ltoreq.1; and 0.ltoreq.d.ltoreq.0.5. Methods of preparing such materials and their use in electrochemical devices are also described.
Deng; Haixia (Woodridge, IL), Belharouak; Ilias (Bolingbrook, IL), Amine; Khalil (Oak Brook, IL)
Uchicago Argonne, LLC (Chicago, IL)
12/ 454,748
May 22, 2009
GOVERNMENT RIGHTS The United States Government has rights in this invention pursuant to Contract No. W-31-109-ENG-38 between the United States Department of Energy and UChicago Argonne, LLC.